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This research report presents a transdisciplinary student research project on the development of climate resilience of communities on the Caribbean Island Dominica.
The research was conducted through a partnership between the Leuphana University Lüneburg and the Sustainable Marine Financing Programme (SMF) of the GIZ.
For the GIZ, the research project aimed at improving the understanding of the socio-ecological resilience framework for tackling problems of Marine Managed Areas and Marine Protected Areas. Also, it enabled new thoughts on how the GIZ and other development agencies can more effectively assists island states to better cope with the challenges of climate change.
The role of the students from the “Global Environmental and Sustainability Sciences” programme of Leuphana University included the design of four transdisciplinary research projects to research aspects of resilience of Caribbean communities.
The developing island states in the Caribbean are extremely vulnerable to more frequent and intense natural hazards while relying on the ecosystem services that are also at risk from extreme weather events, in particular Hurricanes. Low economic stability leads to a dependency of the states on international assistance. To decrease the vulnerability to shocks, counteracting measures that encourage learning and adaptation can increase the resilience against extreme weather events and their consequences.
Concepts that were considered during the design of the transdisciplinary research projects were the adaptation of systems, diversity and stakeholder participation and resilience-focused management systems. Also, the students critically assessed the concept of foreign aid and how it can be successful, mitigating the risk of introducing neo-colonial structures. Flood Management, Biodiversity, Small-Scale Agriculture and Foreign Aid on Dominica were the topics of the transdisciplinary projects. The research methods of a literature review, stakeholder mapping, interviews, scenario development and visioning were used in the projects.
In four scenarios developed in the ‘Flood Management’ project, it became evident that a broad as well as coordinated stakeholder engagement and a variety of measures are required for community resilience. A key finding of the ‘Biodiversity’ project was the identity dimension of community resilience, underlining the importance of the relationship between individuals and nature. The interlinkage of social identity processes and a resilient disaster response was also stressed by the project ‘Foreign Aid’, which highlighted that financial support is similarly important to inclusivity and reflexivity in the process of resource distribution. To recover from extreme weather events, the social memory also plays an important role. The project on ‘Small-scale Agriculture’ concluded, that the memory-making of local communities is as vital to community resilience as formal plans and trainings.
The research project was based on the research approach of transdisciplinarity because of its solution-orientation. It links different academic disciplines and concepts, and non-scientific stakeholders are included to find solutions for societal and related scientific problems. In the four projects, principles of transdisciplinary research were party applied, but some challenges arose due to the geographical distance, time constraints and a strong focus on the scientific part in some phases. Nonetheless, the findings of the projects provide valuable learning lessons to be applied in practice and that can prove useful for future research.
Companies increasingly use social and environmental accounting and reporting (SEAR) to measure, manage, and report their influence on ecological and social issues, i.e., climate change and human rights violations. One reason for the increased use of SEAR is that companies aim to support sustainable aspects in their business decision-making.
Nowadays, there are many different tools, frameworks, and standards for SEAR that companies can use. Beyond the content presented in the tool itself, e.g., social and/or ecological information, these tools differ, among others, by the language used and the type of data collected (e.g., qualitative, quantitative, or monetary data). One the one hand, the range of different approaches for SEAR allows industry- and company-specific monitoring and reporting of sustainable issues. On the other hand, this variety as well as the lack of a common reference framework can lead to uncertainty of corporate decision-makers and stakeholders regarding the use and comparability of these approaches. While numerous previous scholars present advantages and opportunities of the use of SEAR for companies and society, there is a rising number of scholars criticizing the way (social and environmental) accounting and reporting is used today and its impact on a company’s environmental orientation and decision-making. Further, there is only limited literature on the question of which approach to use and how to use and introduce the particular approach for supporting sustainable decision-making within companies.
This dissertation aims to expand previous literature by clarifying the effects of SEAR on corporate decision-making and its influencing factors. Additionally, antecedents for implementation and use of SEAR in regard to supporting sustainability decision-making are discussed. For this purpose, the given dissertation investigates public sustainability reports by companies with different environmental orientation, conducts two survey-based case studies on the effects of different types of SEAR and one qualitative case study on the antecedents of institutionalizing management accounting change through SEAR.
The results lead to seven criteria that practitioners and researchers should recognize for supporting successful SEAR regarding a company’s environmental orientation, the role of employees and leadership as well as the specific SEAR tool itself. Additionally, this dissertation leads to several contributions to the scientific discussion and its influences on corporate environmental orientation and decision-making.
Undertaking local actions, such as implementing public (sustainability) policy, plays a crucial role in achieving sustainable development (SD) at the municipal level. In this regard, indicator-based assessment supports effective implementation by measuring the SD process, based upon evidence-based outcomes that indicators produce. Over the last decade, using subjective indicators, which rely on an individual’s self-perception to measure subjects, has gained its significance in sustainability assessment, in line with the increasing importance of signifying individual’s and community’s well-being (WB) in the context of SD. This study aims to discuss and clarify the scope and functions of subjective sustainable development indicators (SDIs) conceptually and theoretically while examining the usability of such indicators employed in the practice of assessing sustainability policy and action process in a Japanese municipality. Furthermore, the potential usability of using subjective SDIs in monitoring a municipal initiative of the United Nations’ Sustainable Development Goals (SDGs) is also explanatorily examined. The present paper consists of a framework paper and three individual studies.
In the framework paper, Section 1 introduces the global transition of SD discourse and the role that local authorities and implementing public policy play in achieving SD while outlining how WB positions in the SD context. Section 2 provides a brief overview of the major scope of overall SDIs at the conceptual and theoretical levels. Section 3 defines WB in the study’s own right while exploring the scope of indicators measuring WB. In addition, this study strives to further clarify the peculiar scope of SDIs, measuring WB by synthesising the findings. Section 4 overviews how SD at the municipal level in Japan is practiced while acknowledging the extent to which residents perceive WB and SDGs in policymaking. Section 5 provides a brief yet extensive summary of the three individual studies. Section 6 discusses the findings while presenting implications for further study and practices of subjective SDIs.
Furthermore, the three individual studies provide a thorough and in-depth discussion of the study subject. Study 1 illustrates the SD trend at the municipal level in Japan and the growing recognition of using subjective SDIs in public (sustainability) policy assessment in exploring comparative SDI systems to municipality groups. The findings, in turn, raise the need for a further study on subjective SDIs. Study 2 extensively discusses the concept of WB as the overarching subject to be measured while examining varying approaches and scopes of SDIs. It identifies three differentiated WB (i.e., material and social objective WB as well as subjective WB) and distinctive approaches of subjective SDIs (i.e., expert-led and citizen-based approaches) alongside objective SDIs. The findings suggest that these SDIs identified are, conceptually, most capable of measuring associated WB; for instance, citizen-based subjective SDIs can most optimally measure subjective WB. Finally, Study 3 examines the usability of (citizen-based) subjective SDIs in a practice of assessing public policy, aiming at municipal SD, and the potential usability of using such indicators in monitoring a municipal SDG initiative. The findings highlight the determinants and obstacles of using subjective SDIs as well as signifying WB in measuring progress of a municipal SD practice.
Die Dissertation leistet einen Beitrag zur Erforschung der Schriften John Stuart Mills, indem darin Mills rudimentär ausformulierte Denkfigur und Forschungslücke der „Art of Life“ untersucht wird. Die Autorin erweitert die traditionelle Interpretation Mills als klassischem Utilitaristen um einen geschärften Blick auf Mills Handhabung des antiken Theorieelements der Tugend. Drei überlappende thematische Zugänge – Lust, Charakter, Glückseligkeit – dienen der Veranschaulichung und Stärkung der These, wonach es sich bei Mills Theorie um eine hedonistische, perfektionistisch gefärbte Theorie der guten Lebensführung handelt. Der methodische Rückgriff auf die Lust- und Glückskonzeption des Aristoteles erlaubt es Mills differenzierte Auffassung von Lust bzw. Freude zu ergründen, die Rolle des menschlichen Charakters für das (moralische) Handeln festzustellen und eudemische Spuren im Verständnis von Glück aufzudecken. Abschließend bietet die Dissertationsschrift eine Interpretation der Schriften Mills als Lebenskunstphilosophie mit moralischen und außer-moralischen Ebenen und zeigt Anschlusspotentiale zu antiken, sowie zeitgenössischen (Lebenskunst) Theorien auf.
Understanding that entrepreneurship can be better modeled from a systemic point of view is a primordial aspect that determines the important role of universities in entrepreneurial ecosystems. What makes the ecosystem approach a valuable tool for understanding social systems is that, from a holistic perspective, their behavior seems to have emerging characteristics. The impact of this “research object” can only be revealed through interrelated causal chains similar to the behavior of natural ecosystems (Mars et al., 2012). Therefore, the entrepreneurial ecosystem concept provides a unique perspective that complements previous studies on networked economic activity with a clear focus on the systemic elements that support entrepreneurship, and an emphasis on policy that promote the entrepreneurial process.
This dissertation presents a dual scientific account of the entrepreneurship phenomenon in universities. The work is divided into two equal parts, each of which is composed of two research papers. The narrative of the first half takes on a macro perspective view, consisting of one theoretical and one empirically-based conceptual case study. This part conceptually depicts a systematic approach to entrepreneurialism in higher education, namely an ecosystems perspective. The second half concentrates on the meso- and micro levels of study from the university’s point of view, comprising of a case study as historical account for the emergence of the entrepreneurial university, and of a metasynthesis of empirical case studies in entrepreneurial universities, which serves as the basis for the development of entrepreneurial university archetypes.
This doctoral work contributes to an in-depth understanding of Entrepreneurship in universities regarding its systemic qualities and archetypal characteristics of entrepreneurial universities. It argues for an ecosystem’s perspective on the phenomenon of entrepreneurial activity, highlighting the fundamental role that universities play as the heart of entrepreneurial ecosystems. Furthermore, this research expands on the novel concept of the entrepreneurial university by using extensive case study literature to empirically identify distinct archetypes that better reflect the diverse reality of how universities engage as entrepreneurial actors by way of differentiated entrepreneurial structures, systems, and strategies.
Consisting of three articles and a framework manuscript, this cumulative dissertation deals with sustainable compensation of chief executive officer (CEO) with a focus on climate-related aspects. Against the backdrop of the European action for sustainability and the EU Green Deal, the dissertation pays special attention to the consideration of climate-related aspects of corporate performance in CEO compensation. In this context, sustainable compensation is characterized by the consideration of long-term interests and sustainability of the company as well as by the inclusion of financial and non-financial aspects of environmental, social and governance performance (ESG) in compensation agreements. While this novel instrument of corporate governance aims to incentivize the implementation of sustainability-oriented corporate strategy, it is particularly important to unfold this incentive effect at the individual CEO level in view of their managerial discretion. The framework manuscript discusses the research objectives, the regulatory and theoretical background, the results of the dissertation and their implications in the context of regulation, research, and business practice. The essence of the dissertation are the three articles. The first article, "Determinants and effects of sustainable CEO compensation: a structured literature review of empirical evidence," examines the current state of empirical research based on 37 articles that were published between 1992 and 2018. Based on a multidimensional research framework, the structured literature review compiles past research findings, identifies contentual and methodological foci in the research area, and derives questions for future research. The second article, "Mapping the determinants of carbon-related CEO compensation: a multidimensional approach," addresses the topic from a conceptual perspective. Taking the existing work as a starting point, a conceptual framework is derived, which organizes the determinants of carbon-related CEO compensation at societal, organizational, group and individual levels of analysis. On this basis, eight propositions are presented that seek to distinguish between the determinants which support and challenge the implementation of carbon-related CEO compensation. The third article, "Climate change policies and carbon-related CEO compensation systems: an exploratory study of European companies," focuses on the use of CO2-oriented performance indicators in CEO compensation. The empirical-qualitative study analyzes corporate disclosure of the 65 largest companies in the EU for the years 2018 and 2019. The study addresses the use of CO2-oriented performance indicators in corporate strategy and CEO compensation. It also examines which compensation components are determined with the help of CO2-oriented performance indicators, which type of performance indicators are used, and whether CO2-intensive and less CO2-intensive companies differ in this regard.
Der Ausbau der erneuerbaren Energien als Ausprägung des klimaschutzpolitischen Substitutionsansatzes wird in Deutschland mithilfe verschiedener Gesetze gesteuert. Dabei haben sich in mehr als 30 Jahren umfangreiche Regelungsstrukturen herausgebildet. Besonders ausgeprägt ist dies im Stromsektor zu beobachten. Hier kön-nen ausgehend vom Kartellrecht über den Zwischenschritt des Stromeinspeisungsgesetzes bis zu den verschie-denen Fassungen des Erneuerbare-Energien-Gesetzes vielfältige Entwicklungslinien anhand ausgewählter kon-kreter Veränderungen aufgezeigt werden. Sowohl im Hinblick auf Änderungsdynamik wie -tiefe deutlich weni-ger ausgeprägt sind dagegen die Entwicklungslinien im Wärmesektor. Diese nehmen ihren gesetzlichen Ur-sprung erst 2009 mit dem Erneuerbare-Energien-Wärmegesetz, um dann zusammen mit den gebäudebezoge-nen Effizienzregelungen 2020 infolge eines umfassenden rechtlichen Konsolidierungsschritts im Gebäudeener-giegesetz zu münden.
Die Ausgestaltungsschritte im deutschen Erneuerbare-Energien-Recht sind auf vielfältige Weise mit den Ent-wicklungen im europäischen Rechtsrahmen zur Steuerung des Ausbaus der erneuerbaren Energien verwoben. Dies betrifft zunächst die Judikatur zu den primärrechtlichen Anforderungen an die Ausgestaltung mitglied-staatlicher Förderinstrumente, gilt aber besonders für die Entwicklungen im Sekundärrecht. Hier hat sich seit 2001 in mehreren Schritten eine immer detailliertere sekundärrechtliche Ordnung entwickelt. Dabei beinhalten die Entwicklungen der Erneuerbare-Energien-Richtlinien nicht nur eindimensional Steuerungs- und Bindungs-wirkungen von der supranationalen in Richtung der mitgliedstaatlichen Ebene. Vielmehr finden sich darin auch Entwicklungen zur Beschränkung der europarechtlichen Einflüsse, namentlich der Vorgaben zur Warenver-kehrsfreiheit und des Beihilferechts, die eine unmittelbare Reaktion der Mitgliedstaaten auf die Entscheidun-gen der europäischen Gerichte und der Europäischen Kommission darstellen.
Das Erneuerbare-Energien-Recht ist zudem eingebettet in das übergreifende Umweltenergie- und Klima-schutzrecht. Mit der sowohl auf europäischer als auch deutscher Ebene im Werden befindlichen umfassenden Klimaschutzordnung lassen sich ebenso wie mit dem sich fortlaufend ändernden Instrumentenmix zahlreiche Wechselwirkungen feststellen. Der mit der neuen Klimaschutz-Governance geschaffene prozedurale Rahmen etabliert ein System von Klimaschutzzielen, Evaluierungs- und Nachsteuerungsvorgaben. Dieser ist aber mit dem Erneuerbare-Energien-Recht und dessen Zielen nur lose verbunden. Detaillierungsgrad und Steuerungs-wirkung der europäischen und der deutschen Klimaschutz-Governance unterscheiden sich dabei deutlich, was auch mit den stärkeren Koordinationsbedürfnissen im eher vertikal orientierten supranationalen Regelungs-verbund begründet ist.
Dass die Entwicklung im Erneuerbare-Energien-Recht in absehbarer Zeit zu einem Endpunkt gelangen könnten, ist nicht zu erwarten. Dies wird deutlich, wenn die tatsächlichen Herausforderungen der Transformation und aktuell diskutierte Themenfelder für die weitere Fortschreibung dieses Rechtsbereichs betrachtet werden. Dabei sind die verschiedenen Dimensionen der Integration erneuerbarer Energien zur Vertiefung der System-transformation ebenso von Bedeutung, wie Regelungen zu Akzeptanz und Teilhabe sowie zur Beantwortung der Verteilungsfragen einerseits und eine Reduktion des Komplexitätsumfangs im Recht anderseits.
Nachhaltigkeitsziele im Sinne einer Ökologie, Ökonomie und Soziokultur lassen sich im Bauwesen auf verschiedene Instrumente zurückführen. Optimierung des Wärmeschutzes durch die Energieeinsparverordnung (Effizienz) oder Minimierung von Abfall im Kreislaufwirtschaftsgesetz
(Suffizienz). Um jedoch eine neue Qualität der Nachhaltigkeit zu schaffen, ist ein Paradigmenwechsel notwendig. Dabei können Cradle to Cradle Prinzipien als ökoeffektive Methode angewandt werden, in dem exemplarisch die Biodiversität eingebunden, gesunde Bauprodukte verbaut und erneuerbare Energien genutzt werden. Die Natur dient als Vorbild (Konsistenz). Demnach werden Gebäude nützlich für Mensch, Umwelt und Gesellschaft umgesetzt und gleichzeitig Werte geschaffen. Für den deutschen Einzelhandel bestehen vielschichtige Potenziale, da der Gebäudebestand mit mehreren Millionen Quadratmetern bedeutend ist und die Bauwerke aufgrund von Konzeptänderungen oder Verschleiß der Ladenflächen regelmäßig umgebaut werden.
Die Forschung beginnt mit einer Bestandsaufnahme von Cradle to Cradle Bauprodukten und Analyse eines real umgesetzten Einkaufszentrums. Um Einflussfaktoren von Stakeholdern zu identifizieren, wurden qualitative Experteninterviews mit ausgewählten Projektbeteiligten
aus Bauherrn, Betreibern, Beratern, Mietparteien und Herstellern durchgeführt. Im Rahmen des Forschungsvorhabens wurde erforscht, inwieweit sich Bauprodukte aus der Gebäudeplanung in
wissenschaftlicher Theorie und praktischer Bauwirtschaft umsetzen lassen, Geschäftsmodelle anwendbar sind, Trends und Innovationen im Zusammenhang stehen oder Änderungen in Politik oder Wirtschaft notwendig sind. Im Ergebnis wurden Maßnahmen für eine neue Qualität der Nachhaltigkeit bei Einzelhandelsgebäuden identifiziert. Exemplarisch wird anhand der Interviews deutlich, dass neben einem staatlichen Umweltzeichen oder einer Green Building Planungsdisziplin,
insbesondere die Ökonomie in Form von Investitions- und Betriebskosten den größten Stellenwert besitzt. Es braucht einen staatlichen Regulierungsrahmen und neue Geschäftsmodelle, damit nachhaltige Bauprodukte wirtschaftlich werden und durch Stakeholder in
den Prozessen der Planung, Bauausführung und dem Betrieb berücksichtigt werden.
This doctoral thesis deals with the topic of organizational misconduct and covers the three salient research streams in this area by addressing its performance outcomes, antecedents, and preventive measures. Specifically, it is concerned with the question of how different forms of misconduct are reflected in the stock performance of related organizations, thereby, covering the three pillars of corporate sustainability environmental, social, and governance (ESG). Furthermore, it aims to conceptualize how individual cognitive biases may lead to misconduct, therefore, potentially representing an antecedent and how existing management control systems can be enhanced to effectively address specific forms of misconduct, respectively.
To these ends, I first review the research stream of stock price reactions to environmental pollution events in terms of the underlying research samples, methodological specifications, and theoretical underpinnings. Based on the findings of the systematic literature review (SLR), I perform three stock-based event studies of the Volkswagen diesel emissions scandal (Dieselgate), workplace sexual harassment (#MeToo accusations), and the 2003 blackout in the US to cove the three ESG dimensions, respectively. In line with the SLR, my event studies reveal substantial stock losses to firms involved in misconduct that are eventually even accompanied by a spillover effect to uninvolved bystanders.
Then, I review the extant literature conceptually to develop a framework outlining how moral licensing as an individual cognitive bias might lead to a self-attribution of corporate sustainability, a consecutive accumulation of moral credit, and a later exchange of this credit by engaging in misconduct afterward.
Finally, I assess existing workplace sexual harassment management controls, such as awareness training and grievance procedures critically in another conceptual analysis. Based on the shortcomings stemming from management controls’ focus on compliance and negligence of moral duties, I introduce five specific nudges firms should consider to enhance their existing management controls and eventually prevent occurrences of workplace sexual harassment.
Based on the six distinct articles within this doctoral thesis, I outline its limitations and point at directions for future research. These mainly address providing further evidence on the long-term performance effects of organizational misconduct, enriching our knowledge on further cognitive biases eventually leading to misconduct, and conceptualizing nudging beyond the use-case of workplace sexual harassment.
The choice to continue working until or even beyond retirement is a function of the interplay of factors on micro, meso, and macro levels. Research within this area has grown significantly over the last years. I contribute to this line of research with the studies conducted within the scope of this cumulative habilitation thesis. More specifically, the aim of the research presented here is to add to the literature on later life work with the investigation of individual (micro level) as well as job and organizational (meso level) factors that have the potential to contribute to prolonged working lives. I was guided by the general research interest on how individual, job, and organizational factors contribute to later life work, and more specifically to retirement timing and work-related activities beyond normal retirement age. My research was directed by the following research questions: (1) What is the work activity potential of older people in Germany and what characterizes different types of later life work potential? (2) Which role do individual psychological factors such as personality, values, and beliefs play in the context of later life work? (3) How do specific job characteristics interact or align with individual psychological factors with regard to later life work? (4) What characterizes a holistic organizational approach to later life work that helps the alignment of the work environment to older workers’ (individual) needs and abilities?
Following an introduction, I give an overview on the theoretical framework of my research in Chapter 2 (“Theoretical Background”). I describe the conceptualization of later life work before I go into multilevel antecedents of later life work and present key theoretical approaches to a person-environment fit perspective of later life work. In the following four chapters, I present ten studies corresponding to the ten scientific publications that constitute the basis of the cumulative habilitation thesis.
In Chapter 3 (“Later Life Work: Work Activity Potential”) I present research on the extent as well as different types of later life work potential in Germany to describe the context for most of my research. With the two studies presented here (Büsch, Zohr, Brusch, Deller, Schermuly, Stamov-Roßnagel, & Wöhrmann, 2015; Mergenthaler, Wöhrmann, & Staudinger; 2015), I also intend to provide answers to the research question on the later life work potential in Germany and the characteristics of different later life work potential constellations. In Chapter 4 (“Later Life Work: Individual Psychological Factors”) the role of stable as well as malleable individual psychological factors for later life work is explored in two studies (Fasbender, Wöhrmann, Wang, & Klehe, 2019; Wöhrmann, Fasbender, & Deller, 2016). Thus, with the studies presented in this chapter, I contribute to the research question on the role of individual psychological factors in the context of later life work. In Chapter 5 (“Later Life Work: Job Characteristics Corresponding to Older Workers’ Needs and Abilities”) I present three studies exploring the interplay of individual factors and job characteristics for later life work to address the research question on the interaction or alignment of specific job characteristics with individual psychological factors with regard to later life work (Pundt, Wöhrmann, Deller, & Shultz, 2015; Wöhrmann, Brauner, & Michel, 2020; Wöhrmann, Fasbender, & Deller; 2017). Chapter 6 (“Later Life Work: A Holistic Organizational Approach”) reports the development of the Later Life Workplace Index (LLWI) as a multidimensional tool to holistically assess organizational practices and working conditions targeted at the promotion of later life work through the maintenance and enhancement of older employees’ health, work ability, and motivation (Wilckens, Wöhrmann, Adams, Deller, & Finkelstein, 2020; Wilckens, Wöhrmann, Deller, & Wang, 2020; Wöhrmann, Pundt, & Deller, 2018. With the LLWI, I intend to provide an answer to the research question on the characteristics of a holistic organizational approach to later life work that helps the alignment of the work environment to older workers’ (individual) needs and abilities. Finally, in Chapter 7 (“General Discussion”) I discuss the contributions, implications, and limitations of my research presented here.
The way humans have shaped the world so far has led to various fundamental and complex problems that we are currently facing: climate change, biodiversity loss, pandemics. Transdisciplinary sustainability research addresses such complex problems by including a great variety of perspectives, forms of knowing and bodies of knowledge, including non-scientific ones, in the research process. Design, understood in an expanded sense as a creator of transformative processes, also turns to these ‘wicked problems’. Based on their common concern, it is promising to bring both fields of research together productively. Therefore, this dissertation seeks to better understand how design methods facilitate collaborative knowledge production and integration in inter- and transdisciplinary sustainability research. Through five independent papers, this dissertation contributes to addressing the research question on four levels – conceptual-epistemological, empirical, methodological and practical. By exploring the linkages between design research and inter- and transdisciplinary research, a conceptual basis for the targeted use of design methods in collaborative processes of inter- and transdisciplinary research is laid and their spectrum of methods is expanded. This is followed by the development of a transformative epistemology in and for problem-oriented, collaborative forms of research, such as transdisciplinary sustainability research, called problematic designing. Based on a deeper understanding of integration and collaborative knowledge production, as well as its accompanying challenges, empirical research into applying design prototyping as a method in and for situations of collaborative research was conducted. To this end, the findings provide a fundamental basis for the facilitation of inter- and transdisciplinary research processes when dealing with complex problems. With its inherent openness and iterative approach in addressing the unknowns of complex phenomena, design prototyping contributes to the required form of imagination that enables to anticipate possible futures. Furthermore, by including visual-haptic modes of expression, design prototyping reduces the dominance of language and text in scientific negotiation processes and does justice to the diversity of cognitive modes.
Finally, the empirical findings of this dissertation emphasise the importance of the visual-haptic dimension for collaborative knowledge production and the communication of knowledge, and provide insights into the visual structuring of human thought processes. The results on material metaphors, collaborative prototyping and material-metaphorical imagery contribute decisively to the basic knowledge of the epistemological quality of design and the importance of the visual and haptic for thought processes in general. The extension and adaptation of existing analysis methods in this dissertation add to the further development of analysis of visual-haptic data. The results are once again reflected in the synthesis of this framework paper as cross-cutting issues. With developing design prototyping as a design-based intervention and its integration into the epistemological perspective of problematic designing for inter- and transdisciplinary sustainability research, this dissertation makes an important contribution to addressing complex future-related problems and to creating change towards sustainability.
Increased international compliance with human rights and democracy standards is a core issue for both human rights and democratizing actors as well as for victims of human rights abuse. International human rights organizations (IHROs) are expected to make positive contributions to this end, even though they possess low levels of authority. This authority has been renegotiated multiple times in various reform processes. An oversimplified expectation would have us assume that democracies would want to strengthen IHROs, and that autocracies would seek to weaken them. As the United Nations Human Rights Council (UNHRC) was reformed in 2006, 2007, 2010, and 2011, some autocracies strived to abolish parts of the UNHRC. Other autocracies aimed “merely” to weaken them. Democracies displayed an even larger variance. Indonesia and India predominantly favored weakening the UNHRC, whereas Ghana and Spain supported exclusively strengthening of the organization. Additionally, some attitudes towards the UNHRC changed from one year to the next. Autocracies diverge not only in their stances towards the UNHRC, but also across their domestic and international dimensions. Nigeria allows different levels of participation by societal actors than, say, Belarus. Cuba does not have the same domestic institutions as Russia. Iran enters international negotiations from a different position than Thailand. Democracies vary on the domestic and international dimensions as well. The Czech Republic is not the US, and Costa Rica is different from South Africa. The question that drives my research is how we can explain the broad variety of state preferences for strengthening or weakening IHROs. Previous research has mostly concentrated on democracies, leaving autocracies understudied. It also treated countries as black boxes. To account for such shortcomings, first, I systematically test the relationship between the UNHRC and its authoritarian and democratic members by means of inferential statistics. Second, I analyze a bottom-up process inherent to New Liberalism. It scrutinizes the role of domestic societal actors, domestic institutions, as well as pressures on the international stage. The results reveal that societal actors, along with the interplay of wealth and regime type in the international realm, figure as the most important predictors of delegation preferences voiced by autocracies and democracies during the reform of the monitoring bureaucracy Special Procedures of the UNHRC. Societal actors play a more important role in democracies than in autocracies. Institutionalized domestic oversight mechanisms help societal actors to conduct effective lobbying at the domestic level. Oversight mechanisms are more important than the rule of law and electoral institutions. Regarding international coalition building, authoritarian regimes turn out to be better organized than democracies. I conclude that supporters of strong IHROs shall 1. empower domestic societal actors; 2. disrupt cohesive delegation preferences of authoritarian regimes; and 3. invest in independent domestic oversight mechanisms.
The industrial food system is by far the largest greenhouse gas emitting sector. It causes significant damage to terrestrial, aerial and aquatic ecosystems, negative health impacts and an unfair distribution of economic benefits. The call for sustainability transformations is growing, entailing and promoting radical shifts in industrial food systems that lead to new patterns of interactions and balanced social, economic and ecological outcomes. While traditional research has focused on sustainability problems in the food system, it lacks evidence on solutions and desired future states; and more so, on how to practically move from the current to the desired state. Food forests present a promising solution to address multiple sustainability challenges adaptable to local contexts. As biodiverse multi-strata agroforestry systems, they can provide several ecological, socio-cultural and economic services. They sequester carbon, limit soil erosion and regulate the micro-climate; they offer the opportunity for education on healthy diets and ecology, and they produce food and can create livelihood opportunities. However, despite their obvious benefits and a trend in uptake, food forests are still a niche concept rarely known in mainstream culture. To date, research has focused on their ecological and social services; we lack an understanding of food forests as a comprehensive sustainability solution, including their economic dimension, and knowledge on how to develop them. Addressing these gaps, this qualitative research used a solution- and process-oriented methodology guided by transformational sustainability research. In a comparative case study approach, it created an inventory of 209 food forests, followed by interviews and site visits of 14 sites to understand their characteristics and assess their sustainability (Article 1). More indepth, it analyzed the implementation path of seven food forest for success factors, barriers and coping strategies (Article 2). Based on these insights, two experimental case studies were initiated to develop sustainable food forests with practice partners, one based in Phoenix, Arizona, U.S. and one in Lüneburg, Germany. Two studies analyzed the cases’outputs and processes highlighting success factors and challenges, including the role of a sustainable entrepreneurial ecosystem (Article 3, Phoenix case) and key features of productive partnerships to understand why one case succeeded and the other failed (Article 4). Findings include key features of existing and sustainable food forests as well as success factors on how to develop them; namely acquiring a complementary skill set that includes specialty farming and entrepreneurial know-how, securing sufficient start-up funds and long-term land access as well as overcoming regulatory restrictions. Supporting institutions are especially needed to integrate and professionalize the planning stage and provide know-how on alternative business practices. Key features of productive partnerships include an entrepreneurial attitude, access to support functions, long-term orientation and commitment to food system sustainability. The synthesis provides a detailed, ideal-typical implementation pathway to develop sustainable food forests and relevant supportive actors. This study provides researchers, food entrepreneurs, public officials, and activists with insights on how to develop and advance food forests as a sustainability solution.
Die institutionelle Bildung, Erziehung und Betreuung für Kinder im Alter von 0-3 Jahren erfährt seit Beginn der Diskussionen um einen quantitativen Ausbau der institutionellen Betreuungsplätze für diese Altersgruppe, einen intensiven Wandel. Zwischen den beteiligten Akteur*innen werden durch diese Entscheidung (Rechtsanspruch vgl. KiföG 2008) Diskurse auf allen Ebenen initiiert.
Um dem steigenden Bedarf an qualifizierten Frühpädagogischen Fachkräften (0-3 J.) gerecht werden zu können, werden Ausbildungskapazitäten erhöht und Angebote der Fort- und Weiterbildung ausgebaut. Dabei haben sich eine Vielzahl neuer Angebote entwickelt und die Formate, Inhalte, Curricula und die Dozent*innen/Lehrenden stark diversifiziert.
Die vorliegende Dissertationsschrift eröffnet eine Metaperspektive auf das Feld der Aus-, Fort- und Weiterbildungen im Bereich der Frühpädagogik (Kinder von 0 bis 3 Jahren) und leistet einen Beitrag zur (didaktischen) Weiterentwicklung und Reflexion dieser vielfältigen Lehr-/Lernsettings. Den Kern der Dissertationsstudie bilden qualitative leitfadengestützte (Expert*innen-) Interviews. Das forschungsleitende Interesse ist auf Lehrende in Aus-, Fort- und Weiterbildungen im Bereich der Frühpädagogik (Kinder von 0 bis 3 Jahren) gerichtet, die zum Zeitpunkt der Erhebungen bereits langjährig in diesem Feld tätig sind. Ausgewählte Ebenen und Dimensionen einer Professionalisierung des Feldes werden daher primär aus der Perspektive der dort lehrend tätigen Akteur*innen, transparent gemacht.
Integriert wird hierbei u.a. die Offenlegung der Anforderungen an die Fachkräfte (die Lernenden) und ihre Aus-, Fort- und Weiterbildner*innen (die Lehrenden) im Kontext der zu gestaltenden (lebenslangen) Lehr-/Lernprozesse. Es werden zentrale Zusammenhänge und Abhängigkeiten aufgezeigt, um eine weitere Systematisierung des Feldes der Aus-, Fort- und Weiterbildungen im Bereich der institutionellen Bildung, Erziehung und Betreuung für Kinder von null bis drei Jahren zu unterstützen. Es wird gezeigt, dass Lehrende, die in Aus-, Fort- und Weiterbildungen im Bereich der institutionellen Bildung, Erziehung und Betreuung null- bis dreijähriger Kinder langjährig tätig sind, Perspektiven, Strategien und Ansätze entwickelt haben, um mit der vorhandenen Komplexität, den Anforderungen und Strukturen des Feldes, bei der Planung sowie Realisierung von Lehr-/Lernprozessen zukunftsorientiert umzugehen. Für die Erarbeitung einer Aus- oder Fort- und Weiterbildung müssen schwerpunktspezifisch, grundlegende, feldbezogene Implikationen und Zusammenhänge aufgearbeitet und den Lernenden transparent gemacht werden. Für die Erarbeitung eines Themas/einer Theorie werden von Lehrenden Reflexionsfolien zur Kontextualisierung dieser sowie Fokussierung und Individualisierung der Lehr-Lernprozesse eingesetzt. Es wird deutlich, dass die am/im Lehr-/Lernprozess beteiligten/wirkenden Ebenen, Akteur*innen und Anforderungen/Konstruktionen sich dabei in wechselseitigen Prozessen der Gestaltung und Aushandlung befinden. Durch ihre vielfältigen Tätigkeitsfelder und Impulse leisten die Lehrenden selbst einen elementaren Beitrag zur Weiterentwicklung des Feldes.
The doctoral dissertation deals with the problems of the diagnosis of rolling bearings using recurrence analysis. The main topic is the influence of radial internal clearance on the change of dynamics in a self-aligning double-row ball bearing with a tapered bore, in which the axial preload can control this parameter in a wide range. The dissertation began with an analysis of the state of knowledge, where the works related to the analyzes of the impact of radial clearance on the dynamics of rolling bearings have been cited so far. In the next part of the dissertation, the thesis was formulated and activities related to its proving were defined. The theoretical part was supplemented with the basics related to vibroacoustic diagnostics of rolling bearings and presented methods that can be used for their diagnostics. The research on proving the thesis was started with the preparation of a mathematical model in which a change in the damping coefficient in the field of radial clearance was adopted, a difference in the clearance value for a given row of balls was proposed, and the influence of shape errors and radial shaft endplay on the dynamics of the tested bearing was taken into account. During the dynamics tests, the radial clearance was adopted as a bifurcation parameter, and on the basis of the bifurcation diagram, it was possible to indicate the characteristic areas of bearing operation due to the radial internal clearance. In order to verify the model, experimental tests were carried out with a series of bearings in which the radial clearance was changed in a wide range possible to be physically realized. Recurrence analysis was used for both the dynamic response obtained from model and experimental studies. Owing to the comparative analysis of the dynamic response, recurrence quantificators were selected that are most susceptible to changes in radial clearance to bearing dynamics. Moreover, as a result of the research, it was possible to select a narrow range of radial clearance, ensuring the smoothest operation of the tested bearing.
Die wissenschaftliche Arbeit analysiert den interkulturellen Austausch zwischen der Türkei und Deutschland auf der Ebene von Forschungskooperationen und bei Akquisitionsgesprächen in der Türkei. Anhand von weiteren Situationsanalysen werden auch die Erfahrungen der Autorin in Deutschland aufgezeigt. Die teilnehmenden Beobachtungen und Situationsanalysen vertiefen empirisch die Frage der kulturellen und sozialen Bedingungen einer Markterschließung im Bereich von menschlichen Beziehungen und ökonomischen Rahmenbedingungen – wobei vor allem Forschungskooperationen in den Feldern von Ernährung und Pharmazie von Interesse sind. Die Analysen der teilnehmenden Beobachtungen werden anhand der Kulturdimensionen von Hofstede durchgeführt, es wird gezeigt inwieweit diese anwendbar sind und mögliche Ergebnisse für die Bewertungen einer Kultur erlauben könnten. Die Kulturdimensionen von Hofstede stehen im Mittelpunkt dieser Arbeit. Zuerst wird die aktuelle politische und wirtschaftliche Lage der Türkei in den letzten 20 Jahren aufgezeigt, dann wird das Konzept der „Interkulturellen Kompetenz“ beleuchtet. Sodann wird das Kulturkonzept von Hofstede im interkulturellen Dialog betrachtet und die allgemeine Kritik an Hofstede dargestellt, auch alternative Theorieansätze werden beschrieben. Die Strategie des Fraunhofer Forschungsverbunds wird über das praktische Vorgehen beleuchtet und Faktoren für den Erfolg beschrieben. Die Arbeit schließt mit einem methodisch-philosophischen Ausblick hinsichtlich des Zusammenhangs vom korrelativen Denken und der Anwendung der Kulturdimensionen von Hofstede.
Der vorliegende Beitrag präsentiert ein (Simulations-) Modell zur Erklärung des Verhaltens von Organisationen. Der Modellentwurf basiert auf einem funktionalistischen Ansatz. Danach kann eine Organisation nur überleben, wenn es ihr gelingt, den Systemanforderungen, die sich auf Or-ganisationen richten, zu genügen. Veränderungen von Systemanforderungen bewirken daher An-passungsreaktionen, die allerdings nicht reibungslos ablaufen. Das Modell beschreibt den Verhal-tensprozess, der durch ein gestörtes Systemgleichgewicht ausgelöst wird. Als Modellvariable fun-gieren die Systemanforderungen und das zu seiner Bewältigung implementierte Institutionelle Ar-rangement sowie außerdem Sensitivität, Handlungsbereitschaft, Beharrung, Realismus, Identifika-tion, Handlungsdruck, Unsicherheit, Dysfunktion und Dissonanz. Die Simulationsrechnungen zei-gen, wie sich aus den jeweiligen Variablenkonstellationen bestimmte Verhaltensmuster herausbil-den und welche Mechanismen dafür verantwortlich sind.
This thesis aims to develop a FE-based model of a dieless wire drawing process for wires made from magnesium alloys. To this end a general material model of pure magnesium and a model of the dieless wire drawing process are developed. Based on the general pure magnesium model an alloy specific model for AZ31 wire is developed. The performance of both models is assessed using experimental data generated on a dieless wire drawing prototype.
The process model is conceptionally split into the thermal and mechanical response of the wire. The thermal model is validated by axial temperature profiles and the mechanical model is vali-dated by CSA-reduction and wire force. Both behaviours are validated separately before combin-ing the thus created models into a thermomechanical model of the dieless wire drawing process. The thermal material model is developed for pure magnesium. An initial assumption of limited correlation between content of alloying elements and thermal behaviour, was disproven. As a results in addition to alloy-specific mechanical data, thermo-electric data is recorded to achieve thermal validity of the model. This is done by identifying the experimental maximum temperature of the drawn wire for a given heating power and calculating the necessary input power of the in-duction heating device to achieve this temperature in simulation. The mechanic material model is based on experimental stress-strain curves recorded for each investigated wire materials in addi-tion to pure magnesium data, based on literature.
Results show the thermomechanical magnesium models to be mostly valid, provided process parameters stay within the range of available data on the mechanic material performance. Where the model is forced to extrapolate material behaviour, simulation quality drops. This ap-plies for wire temperature and CSA-reduction. Estimations of wire force are shown to be invalid. For AZ31 wire the thermal model generated valid temperature profiles of the wire. The thermo-mechanical model for AZ31 is shown invalid as both CSA-reduction and wire force deviate from experimental results.
Transformative learning is increasingly set to become an essential component in sustainability transformation. This type of learning attracts considerable interest in studying and impulsing a paradigm change to transform our world into a more sustainable one, yet its underlying learning mechanisms have remained overlooked. Although there is an apparent relationship between transformative learning and sustainability transformation, little has been done to systematically explore the contribution to sustainability transformation. This learning theory developed decades ago independently of sustainability discourses; however, it provides an analytical framework for understanding the learning processes, outcomes and conditions in individual and social learning towards sustainability transformation. Against this background, the following research question arises: To which extent can transformative learning lead to sustainability transformation?
This doctoral work aims to explore transformative learning processes, outcomes, and conditions occurring and advancing towards sustainability transformation of the textile-fashion industry in Mexico. Taking an exploratory approach, the methods employed were literature reviews to untangle concepts and to construct theoretical pillars to support the empirical research design and data analysis. For data collection, snowball-sampling techniques were used to explore the practice field of the textile-fashion industry in Mexico. Qualitative interviews were employed to gather data about the learning experiences of actors. Qualitative and quantitative methods were required to perform the respective data analysis, the qualitative codification of interviewees’ responses through MAXQDA being the most remarkable one. Analysis of social media content was also utilised to understand the communication and business practices of projects involved in the transformation of the textile-fashion sector. As a result, this work comprises three articles, one a systematic literature review and two empirical research articles, investigating the transformative learning processes of entrepreneurs in the development of sustainability niches.
As for the findings of this doctoral work, the use of transformative learning in sustainability transformation requires a careful study of the theory and its conceptual elements. Regarding the case study, transformative learning is inherent in forming and developing sustainability niches as entrepreneurs venture into them: It is individual prior learning, expectations and actions that initiate the path of sustainability transformation while disorienting dilemmas, critical reflection, and discourse accelerate them. Through these stages, it is when individual learning turns into social learning. On the other hand, based on the multi-level perspective, the interplay between the niche, regime and landscape levels generates a space for sustainability transformation and transformative learning.
This work contributes to deciphering the black box of learning in sustainability transformations. The principal endeavour was to build the theoretical bridges between this emerging area of inquiry and transformative learning theory, as a significant part of this theoretical construction required drawing upon other research fields such as sustainability transitions and sustainability entrepreneurship. The crosscutting feature of learning in those fields enabled the development of an awareness of boundary objects between those fields (e.g., expectations). Furthermore, this study is pioneering in exploring sustainability transformation processes of the textile-fashion industry in Latin American contexts. The findings of this work can also be extrapolated to other sectors in which entrepreneurs participate, such as local food production, sustainable mobility, among others
Rangelands are the most widespread land-use systems in drylands, where they often represent the only sustainable form of land-use due to the limited water availability. The intensity of the land-use of such rangeland ecosystems in drylands depends to a large extent on the climatic variability in time and space, as on the one hand it influences the growth of biomass and therefore the grazing intensity, but on the other hand it can also destroy entire herds through extreme climatic events. Rangeland systems are seriously threatened by climate change, because climate change will alternate the availability of water in time and space. This is dangerous in that we have not yet fully understood how grazing affects vegetation under different climatic conditions. Inadequate rangeland management can quickly lead to serious degradation of the grazing grounds. This dissertation therefore deals with the question which role climatic variability plays for the effects of grazing on vegetation in dry rangelands. The relatively intact steppes in central Mongolia were chosen as a model system. They are characterised by low precipitation and high climatic variability in the south (100 mm annual precipitation), and comparatively high precipitation and low climatic variability in the north (250 mm). The effects of grazing on vegetation on 15 grazing transects were investigated along the climatic gradient. The central elements were the plant species and their abundances on 10 m x 10 m areas, for which functional characteristics such as height, affiliation of functional groups or leaf nutrients were recorded. The main hypothesis of this dissertation is that grazing has a greater impact on vegetation communities with increasing rainfall. To test this hypothesis, three studies were carried out. In a first study, we found that the vegetation communities in the dry area differ strongly along the climatic gradient, while the plant communities in the wetter area differ more strongly along the grazing gradient. The results of the second study suggested that this difference can be explained by a functional environmental filter that becomes weaker from south to north as the niche spectrum increases. The third study has shown that this is likely a function of the higher availability of resources, which at the same time leads to higher grazing pressure, therewith stressing the vegetation especially in years with droughts. In summary, I conclude that the climate gradient also represents an environmental filter that filters species for certain characteristics, thus having a significant influence on the vegetation. Climatic variability influences the effect of grazing on vegetation, which is particularly problematic where the grazing intensity is high and the species are less adapted to strong climatic fluctuations. Future scenarios predict increasing productivity and therefore increasing livestock density. This may lead to an increase in floristic and functional diversity across the climate gradient, but also to increasing grazing effects and therefore threads for overgrazing. Increasing climatic variability is likely to intensify this thread, especially in the moister regions, whereas the dry rangelands are likely to be more resilient due to the adaptation of the plants to non-equilibrium dynamics. The fate of Mongolia’s rangeland systems therefore clearly lies in the hand of the rangeland managers. The sustainable use of Mongolia’s vast steppe ecosystems might depend on a flexible livestock management system which balances the grazing intensity with the available resources, while still considering climatic variability as a key for the management decisions. A potential link-up for future studies might arise from the shortcomings of the studies presented. This dissertation suggests that long-term observations are necessary to better understand the effects of climatic variability. In addition, grazing gradients must be selected more carefully in the future in order to be able to ensure better comparability, and functional analyses should have a stronger relationship to forage quality. With these points in mind, a comparative study of several rangeland ecosystems on a global level must be the ultimate goal. This could be an important step for the sustainable use of drylands in the context of global climate and land use change.
Destination websites, which are maintained by destination marketing/management organisations (DMOs), are a key source of information for tourists in the pre-trip phase. DMOs are increasingly applying experiential marketing on their websites to support positive pre-travel online destination experiences (ODEs) and make the vision of the holiday as vivid as possible. Thereby they aim to turn virtual visitors into physical visitors. However, research into technology-driven travel experiences is still in its infancy. In particular, a theoretical understanding of the nature of ODEs arising from destination websites is still lacking. Closing this knowledge gap is of great interest from a theoretical perspective; furthermore, it is of central importance for strategic marketing-controlling of destinations. Therefore, this dissertation is dedicated to an extensive investigation of ODEs on destination websites in the pre-travel phase. The aims were to analyse the influences of experiential design on ODEs, explore the ODE dimensions, and develop and validate a measurement tool for assessing the ODE values of destination websites.
In the first qualitative multi-method study (eye-tracking, retrospective think-aloud protocols, semi-structured interviews, and video observations), the objective was to gain an in-depth understanding of the ODE facets in the travel inspiration phase. It was found that the experience dimensions adopted in previous research regarding the product-brand context (sensory, affective, intellectual, social, and behavioural dimensions) also occurred in the ODE context but exhibited some particularities, such as a future-oriented affective component (affective forecasting). Moreover, a supplementary spatio-temporal experience dimension was identified. An online field experiment was subsequently conducted and aimed at assessing the effects of applying experiential marketing on destination websites on ODEs in the travel inspiration phase. Based on the findings of Study 1, an initial attempt at developing an ODE measurement instrument was made and the ODE dimensionality tested. The results showed the theoretically relevant experience dimensions to be less differentiated compared to the product-brand context; instead, they merged into a holistic ODE encompassing several experience facets. Furthermore, it was shown that the application of experiential design enhanced ODEs; however, considering the subjectivity of experiences, the effect was rather small. Accordingly, complex multi-media elements do not automatically increase the experiential effect.
In the third study, a quasi-online field experiment was conducted, simulating the travel information phase (higher involvement than Study 2) to re-assess the ODE dimensions and develop and validate a measurement instrument. The results showed the overall ODE to be reflected by two interrelated dimensions that aligned with the dual process theory: hedonic and utilitarian experiences. The facets identified in the first study were largely reflected in these two overarching components. Moreover, a reliable, valid, and parsimonious second-order measure for assessing ODEs was proposed.
Overall, the results yielded by this dissertation enhance the scientific understanding of the technology-empowered tourist experience in the currently under-researched pre-travel experience phase. In addition, by proposing a new scale for the measurement of ODEs, this dissertation provides useful methodological advancements that can pave the way for further research in this field. The results will also be of great practical value for DMOs, as they yield a tool for controlling the experiential outcomes of websites as a base for strategic marketing decisions.
The transition of our energy system towards a generation by renewables, and the corresponding developments of wind power technology enlarge the requirements that must be met by a wind turbine control scheme. Within this thesis, the role of modern, model-based control approaches in providing an answer to present and future challenges faced by wind energy conversion systems is discussed. While many different control loops shape the power system in general, and the energy conversion process from the wind to the electrical grid specifically, this work addresses the problem of power output regulation of an individual turbine. To this end, the considered control task focuses on the operation of the turbine on the nonlinear power conversion curve, which is dictated by the aerodynamic interaction of the wind turbine structure and the current inflow. To enable a power tracking functionality, and thereby account for requirements of the electrical grid instead of operating the turbine at maximum efficiency constantly, an extended operational range is explicitly considered in the implemented control scheme. This allows for an adjustment of the produced power depending on the current state of the electrical grid and is one component in constructing a reliable and stable power system based on renewable generation. To account for the nonlinear dynamics involved, a linear matrix inequalities approach to control based on Takagi-Sugeno modeling is investigated. This structure is capable of integrating several degrees of freedom into an automated control design, where, additionally to stability, performance constraints are integrated into the design to account for the sensitive dynamical behavior of turbines in operation and the loading experienced by the turbine components. For this purpose, a disturbance observer is designed that provides an estimate of the current effective wind speed from the evolution of the measurements. This information is used to adjust the control scheme to the varying operating points and dynamics. Using this controller, a detailed simulation study is performed that illustrates the experienced loading of the turbine structure due to a dynamic variation of the power output. It is found that a dedicated controller allows wind turbines to provide such functionality. Additionally to the conducted simulations, the control scheme is validated experimentally. For this purpose, a fully controllable wind turbine is operated in a wind tunnel setup that is capable of generating reproducible wind conditions, including turbulence, in a wide operational range.
This allows for an assessment of the power tracking performance enforced by the controller and analysis of the wind speed estimation error with the uncertainties present in the physical application. The controller showed to operate the turbine smoothly in all considered operating scenarios, while the implementation in the real-time environment revealed no limitations in the application of the approach within the experiments. Hence, the high flexibility in adjusting the turbine operating trajectories and structural design characteristics within the model-based design allows for efficient controller synthesis for wind turbines with increasing functionality and complexity.
Urban areas are prone to climate change impacts. Simultaneously the world’s population increasingly resides in cities. In this light, there is a growing need to equip urban decision makers with evidence-based climate information tailored to their specific context, to adequately adapt to and prepare for future climate change.
To construct climate information high-resolution regional climate models and their projections are pivotal, to provide a better understanding of the unique urban climate and its evolution under climate change. There is a need to move beyond commonly investigated variables, such as temperature and precipitation, to cover a wider breath of possible climate impacts. In this light, the research presented in this thesis is centered around enhancing the understanding about regional-to-local climate change in Berlin and its surroundings, with a focus on humidity. More specifically, following a regional climate modelling and data analysis approach, this research aims to understand the potential of regional climate models, and the possible added value of convection-permitting simulations, to support the development of high-quality climate information for urban regions, to support knowledge-based decision-making.
The first part of the thesis investigates what can already be understood with available regional climate model simulations about future climate change in Berlin and its surroundings, particularly with respect to humidity and related variables. Ten EURO-CORDEX model combinations are analyzed, for the RCP8.5 emission scenario during the time period 1970 ̶ 2100, for the Berlin region. The results are the first to show an urban-rural humidity contrast under a changing climate, simulated by the EURO-CORDEX ensemble, of around 6 % relative humidity, and a robust enlarging urban drying effect, of approximately 2 ̶ 4 % relative humidity, in Berlin compared to its surroundings throughout the 21st century.
The second part explores how crossing spatial scales from 12.5 km to 3 km model grid size affects unprecedented humidity extremes and related variables under future climate conditions for Berlin and its surroundings. Based on the unique HAPPI regional climate model dataset, two unprecedented humidity extremes are identified happening under 1.5 °C and 2 °C global mean warming, respectively SH>0.02 kg/kg and RH<30 %. Employing a double-nesting approach, specifically designed for this study, the two humidity extremes are downscaled to the 12.5 km grid resolution with the regional climate model REMO, and thereafter to the 3 km with the convection-permitting model version of REMO (REMO NH). The findings indicate that the convection-permitting scale mitigates the SH>0.02 kg/kg moist extreme and intensifies the RH<30 % dry extreme. The multi-variate process analysis shows that the more profound urban drying effect on the convection-permitting resolution is mainly due to better resolving the physical processes related to the land surface scheme and land-atmosphere interactions on the 3 km compared to the 12.5 km grid resolution. The results demonstrate the added value of the convection-permitting resolution to simulate future humidity extremes in the urban-rural context.
The third part of the research investigates the added value of convection-permitting models to simulate humidity related meteorological conditions driving specific climate change impacts, for the Berlin region. Three novel humidity related impact cases are defined for this research: influenza spread and survival; ragweed pollen dispersion; and in-door mold growth. Simulations by the regional climate model REMO are analyzed for the near future (2041 ̶ 2050) under emission scenario RCP8.5, on the 12.5 km and 3 km grid resolution. The findings show that the change signal reverses on the convection-permitting resolution for the impact cases pollen, and mold (positive and negative). For influenza, the convection-permitting resolution intensifies the decrease of influenza days under climate change. Longer periods of consecutive influenza and mold days are projected under near-term climate change. The results show the potential of convection-permitting simulations to generate improved information about climate change impacts in urban regions to support decision makers.
Generally, all results show an urban drying effect in Berlin compared to its surroundings for relative and specific humidity under climate change, respectively for the urban-rural contrast throughout the 21st century, for the downscaled future extreme conditions, and for the three humidity related impact cases. Added value for the convection-permitting resolution is found to simulate humidity extremes and the meteorological conditions driving the three impacts cases.
The research makes novel contributions that advance science, through demonstrating the potential of regional climate models, and especially the added value of convection-permitting models, to understand urban rural humidity contrasts under climate change, supporting the development of knowledge-based climate information for urban regions.
Considering the recent success of right-wing populist candidates and parties in the United States and across Europe, there has for some years now been talk among scholars (and the wider public) about a worldwide democratic recession. Levitsky and Ziblatt paint a very gloomy picture when they write that democracy is at risk of dying. Others are not as pessimistic, but they still argue that democracy is in a state of serious disrepair. The younger generations appear to be especially unsupportive of democracy’s liberal principles and more willing to express support for authoritarian alternatives. What these authors overlook, however, is that the publics of advanced industrial societies have experienced an intergenerational value shift. In fact, populations in industrial democracies have become more liberal overall, but not everyone’s mindset is changing at the same speed. It is mainly – but not exclusively – the members of the lower classes that do not keep up. While societies have generally become more liberal, there is increasing alienation between the social classes over these liberal values. Drawing on a more recent trend in social class research with a social cognitive approach, this dissertation contributes to the study of growing anti-democratic tendencies around the world by analyzing the interplay between inequality dynamics and value orientations. The focus lies on investigating the effect socio-cultural polarization (i.e., ideological polarization between social classes) has on civic culture in the mature democracies of the West. The findings suggest that it is not ideological polarization between the social classes that has the greatest negative effect on civic culture, or general civic attitudes and behavior, for that matter. It is the increasing dissent in society about whether the country’s elites are still to be trusted with making the right decisions to increase the average citizen’s quality of life. This difference in opinion manifests itself in a decline in some civic attitudes.
Human activities have become a major driver of global change, so that global society and economy are facing consequences such as climate change, increasing scarcity of resources, environmental pollution and degradation as well as disturbances of ecosystem functioning and services.In order to meet these main challenges in an appropriate way, adequate starting points and solutions must be pursued at all levels to shift the current socio-economic pathway from an unsustainable to a safe operating and thus sustainable development within the planetary boundaries. One of the application concepts in industrial contexts is Industrial Symbiosis (IS), which deals with the set-up of advanced circular/cascading systems, in which the energy and material flows are prolonged for multiple material and energetic (re-)utilization within industrial systems in order to increase resource productivity and efficiency, while reducing environmental impacts. The overarching goal of the research project was to identify and develop approaches to enable the evolution of Industrial Symbiosis (IS) in Industrial Parks (IPs). Industrial Symbiosis (IS) is a collaborative cross-sectoral approach to connect the resource supply and demand of various industries in order to optimize the resource use through exchange of materials, energy, water and human resources across different companies, while generating ecological, technical, social and economic benefits. Many Information Communication Technology (ICT) tools have been developed to facilitate IS, but they predominantly focus on the as-is analysis of the IS system, and do not consider the development of a common desired target vision or corresponding possible future scenarios as well as conceivable transformation paths from the actual to the defined (sustainability) target state. This gap shall be addressed in this work, presenting the software requirements engineering results for a holistic IT-supported IS tool covering system analysis, transformation simulation and goal-setting. This study also aims to present the conceptual IT-supported IS tool and its corresponding prototype, developed for the identification of IS opportunities in IPs. This IS tool serves as an IS facilitating platform, providing transparency among market players and proposing potential cooperation partners according to selectable criteria (e.g. geographical radius, material properties, material quality, purchase quantity, delivery period). Therefore a quantitative indicator system was compiled and recurring patterns were identified to utilize this knowledge in the comprehensive IT-supported IS tool. So this IS tool builds the technology-enabled environment for the processes of first screening of IS possibilities and initiation for further complex business-driven negotiations and agreements for long-term IS business relationships.
The significance of selecting suitable talent
A company’s success is significantly influenced by the professionalism and quality of decision-making, especially selecting decisions to hire suitable talent. The term “talent” can be taken to mean as someone who has talent (talent as the sum of one’s abilities) and someone who is a talent. Leadership talent makes a difference in organizational success, has the potential to succeed as a leader, and thus will
hold corresponding pivotal positions. In this book, we focus on the selection and acquisition of leadership talent, since such talent is more difficult to find in the market and, at the same time, more challenging to select. Selecting these talented individuals is one of the most critical components of effective organizations. Hardly any other corporate decision has such significant effects on corporate success as talent selection. Recruiting and personnel selection are also the first steps in promoting capability building and creating successful teams. For example, Warren Buffet, renowned for his investing prowess, says, “I have only two jobs. One is to attract and keep outstanding managers to run our various operations”. This highlights the need for an effective and efficient personnel selection process and to improve the diagnostic performance of such procedures. In addition, the increasing diversity of applicants, global competitiveness, and the lack of qualified personnel in specific labor and job markets also increase the importance of high-quality personnel selection processes.
Who is taken into consideration when we talk about the citizens, about the people or the activists? Often it is a rather unquestioned privileged positionality, which is taken to be the standard that most of the time it is actually not. In this quote, the activist Madjiguène Cissé, from the transnational Sans-Papiers movement, raises that just because someone or something is not visible—to the broader public or a particular public—it does not mean that they have not been there for a long time. Migrant rights activism is not a new phenomenon but has intensified and become more networked and visible over the past years (Eggert & Giugni, 2015). This study explores group contexts of activism by, with and for refugees and migrants in Hamburg, the claims, interactions, challenges and processes that activists experience, discuss and deal with. I have approached activists experiencing political organizing in this context from a constructivist grounded theory perspective. This allowed me to develop conceptual perspectives grounded in activist groups’ realities and was advanced through existing literature on this social movement but also theories from other research fields. Solidarities emerged throughout the research process as a more concrete focus. This research sets out to answer the questions: What does solidarity mean in social movements, and how do migrant rights activist practices result in negotiating, enacting and challenging it?
This publication is a revised version of my dissertation thesis.
Many dynamics are reshaping the global macroeconomics and finance. This cumulative dissertation empirically examines the impacts of two major global dynamics, the disaster risks and the China’s rise, on the global economy. Chapter 1 introduces the motivation and summarizes the dissertation. Chapter 2 investigates how geopolitical risks affect financial stress in the whole financial system and its sub-sectors (banking, stock, foreign exchange, bond) of major emerging economies. Chapter 3 shows how different disaster risks (financial, geopolitical, natural-technological) can explain the returns and risk premiums of stock and housing in advanced economies between 1870 and 2015. Chapter 4 examines how the rise of China is contributing to higher economic growth in emerging economies, especially after the Global financial crisis of 2007-2008. Chapter 5 illustrates how a close trade and investment relation with China has helped African countries to reduce poverty and to improve their income distribution.
The academic literature holds high expectations of crowdfunding to foster sustainable development by closing the funding gap for sustainable entrepreneurs. In particular, crowdfunding is considered a promising instrument for transforming existing socio-technical regimes by financing radical innovations of such entrepreneurs. However, this potential has not yet been fully explored. Large knowledge gaps exist especially in the area of investment-based crowdfunding. Therefore, this dissertation addresses the overarching research question of how sustainable entrepreneurs can exploit the full potential of investment-based crowdfunding to develop from niche operators to actors in the socio-technical regime. Five journal articles and one book chapter are included in this PhD project, which use a wide range of quantitative methodologies. In the framework paper, the findings are conceptually evaluated on a meta-level by applying the multi-level perspective. The key insights can be assigned to four categories, including the financing and marketing function, the target group, and the project presentation. The analysis shows that investment-based crowdfunding is suitable to equally fund and market the business ideas of environmental entrepreneurs, since the quest for entering the mass market is highest for such ventures. In contrast, purely social entrepreneurs tend to conduct crowdfunding projects on a smaller scale and probably aim to stay in the niche. Nevertheless, profit-oriented social entrepreneurs are still encouraged to use investment-based crowdfunding for funding and marketing purposes. The prominent display of environmental effects (e.g. the amount of compensated greenhouse gases) and financial incentives (e.g. high interest rates) has a high impact on the investment decision of individuals on investment-based crowdfunding platforms. The findings also suggest that the typical supporter of sustainability-oriented crowdfunding projects is younger than 50 years, has achieved at least a university degree and holds low levels of self-enhancement and conservative values. The case of fairafric is used as a best practice example to demonstrate how crowdfunding can be a stepping stone for sustainability-oriented niche actors to enter the mass market. The fair-trade and organic chocolate manufacturer has undergone six crowdfunding campaigns which enabled it to grow and build a strong community of supporters. The outcomes of this dissertation clarify how sustainable entrepreneurs can unleash the potential of investment-based crowdfunding for financing and marketing purposes.
Der vorliegende Beitrag liefert eine deskriptive Analyse von wichtigen Einflussgrößen auf die Zu-friedenheit. Betrachtet werden drei bedeutsame Arbeitsbedingungen und vier auf die Lebensbe-wältigung bezogene Einstellungen. Als Ausgangshypothese dient die Vermutung, dass die Korrela-tionen zwischen den Arbeitsbedingungen und der Arbeitszufriedenheit enger sind als die Korrela-tionen zwischen den Arbeitsbedingungen und der Lebenszufriedenheit. Umgekehrt ist zu vermu-ten, dass die Einstellungen einer Person sich enger mit ihrer Lebenszufriedenheit als mit der Ar-beitszufriedenheit verbinden. Als Datenbasis dient das Sozioökonomische Panel.
Does the presentation of travel experience affect personal prestige of tourists? Prestige enhancement has been considered a motive for travel by tourism researchers for decades. Yet, the question whether representation of travel experience actually leads to personal prestige enhancement has been widely neglected so far. The study of prestige benefits of travel is a necessary endeavour to develop suitable methodological approaches toward the concept, in order to close critical knowledge gaps and enhance scientific understanding. The present thesis lays out the rationale and results of three research projects which shed light onto the relationship between touristic self-presentation and its effects on personal prestige evaluations of the social environment. The empirical studies conducted in the frame of this dissertation conclude in the following main findings:
Leisure travel is a useful means for people to self-express in a positive way, and material representations of travel are frequently displayed to others. Tourists make use of travel experience to self-present in a positive way by uploading photos on social media, collecting and displaying souvenirs, wearing jewellery and clothing from their last trip, or talking about their trips to others. They express positive self-messages about personal character traits, affiliation to social in-groups and proof of having travelled somewhere. The findings ascertain the utility of travel representations for positive self-expression, showing that travel experience is an effective vehicle for conspicuous consumption and self-expression as an antecedent for personal prestige enhancement.
Personal prestige is an element of social relations, and holds capacity to affect perceptions of social inclusion and social distinction, so it has to be conceptualised as a multidimensional construct. In a tourism context, personal prestige is reliably measurable along the four dimensions of hedonism, social inclusion, social distinction and prosperity. The herein developed Personal Prestige Inventory (PPI) is a valid, reliable and parsimonious measurement tool which substantially enhances methodological approaches toward empirical research into personal prestige.
The way in which people represent travel experience to others measurably affects how their personal prestige is evaluated by social others. Empirical evidence of a series of experimental studies provides support for the assumption that representation of travel experience has an effect on the social evaluation of tourists’ personal prestige. Experimental variance suggests small to moderate effects on personal prestige depending on the amount of leisure information given about a person, participation in tourism, and the destination and type of travel represented. This evidence is reasonable basis to conclude that whether and how people travel, and whether and how they share travel experience with others, does measurably affect social other’s evaluation of their personal prestige.
By providing qualitative evidence for positive self-presentation through leisure travel, and the subsequent development and experimental application of the Personal Prestige Inventory (PPI) in a tourism context, the present dissertation enhances scientific understanding of personal prestige in the context of leisure travel and provides useful methodological advancements for further research into the topic.
Biodiversity is quickly diminishing across the planet, primarily owing to human pressures. Protected areas are an essential tool for conserving biodiversity in response to increasing human pressures. However, their ecological effectiveness is contested and their capacity to resist human pressures differ. This dissertation aimed to assess the ecological effectiveness of different protection levels (from strict to less strictly protected: national park, game reserve, forest reserve, game-controlled area, and unprotected areas) in biodiversity (both mega diverse butterflies and mammals), maintaining habitat connectivity, and reducing anthropogenic threats at the wider landscape in the Katavi-Rukwa Ecosystem of southwestern Tanzania. To achieve this overarching goal, I employed an interdisciplinary approach.
First, I analyzed butterfly diversity and community composition patterns across protection levels in the Katavi-Rukwa Ecosystem. I found that species richness and abundance were highest in the game reserves and game-controlled areas, intermediate in the forest reserves, national park and unprotected areas. Species composition differed significantly among protection levels. Landscape heterogeneity, forest cover, and primary productivity influenced species composition. Land-use, burned areas, forest cover, and primary productivity explained the richness of species and functional traits. Game reserves hosted most indicator species.
Second, I modelled the spatial distribution of six large mammal target species (buffalo Syncerus caffer, elephant Loxodonta africana, giraffe Giraffa camelopardalis, hartebeest Alcelaphus buselaphus, topi Damaliscus korrigum, and zebra Equus burchellii) across environmental and protection gradients in the Katavi-Rukwa Ecosystem. Based on species-specific density surface models, I found relatively consistent effects of protection level and land-use variables on the spatial distribution of the target mammal species: relative densities were highest in the national park and game reserves, intermediate in forest reserves and game-controlled areas and lowest in un-protected areas. Beyond species-specific environmental predictors for relative densities, our results highlight consistent negative associations between relative densities of the target species and distance to cropland and avoidance of areas in proximity to houses.
Third, I examined temporal changes in land-use, population densities and distribution of six large mammal target species across protection levels between 1991 and 2018. During the surveyed period, cropland increased from 3.4 % to 9.6 % on unprotected land and from ≤0.05 % to <1 % on protected land. Wildlife densities of most, but not all target species declined across the entire landscape, yet the onset of the observed wildlife declines occurred several years before the onset of cropland expansion. Across protection levels, wildlife densities occurred at much greater densities in the national park and game reserves and lowest in the forest reserves, game-controlled areas and unprotected areas. Based on logistic regression models, target species preferred the national park over less strictly protection levels and areas distant to cropland. Because these analyses do not support a direct relationship between the timing of land-use change and wildlife population dynamics, other factors may account for the apparent ecosystem-wide decline in wildlife.
Fourth, I quantified land-use changes, modelled habitat suitability and connectivity of elephant over time across a large protected area network in southwestern Tanzania. Based on analyses of remotely-sensed data, cropland increased from 7% in 2000 to 13% in 2019, with an average expansion of 634 km2 per year. Based on ensemble models, distance from cropland influenced survey-specific habitat suitability for elephant the most. Despite cropland expansion, the locations of the modelled elephant corridors (n=10) remained similar throughout the survey period. According to ecological knowledge, nine of the modelled corridors were active, whereas one modelled corridor had been inactive since the 1970s. Based on circuit theory, I prioritize three corridors for protected area connectivity. Key indicators of corridor quality varied over time, whereas elephant movement through some corridors appears to have increased over time.
Overall, this dissertation underpins differences in ecological effectiveness of protected areas within one ecosystem. It highlights the need to utilize a landscape conservation approach to guide effective conservation across the entire protection gradient. It also suggests the need to enforcing land use plans and having alternative and sustainable forms for generating income from the land without impairing wildlife habitat.
Im deutschsprachigen Raum fehlt es an gezielten präventiven Maßnahmen für Kindergartenfachkräfte, um das Emotionswissen von Kindern kontextsensibel und alltagsintegriert über die Sprache in Routinesituationen zu fördern. Diese Lücke soll durch die Entwicklung und Evaluation eines Emotionswissen-Trainings („Ems“) für Kindergartenfachkräfte geschlossen werden.
Im 1. Teil soll auf den theoretischen Hintergrund des Konstrukts „Emotionswissen“ eingegangen werden. Darüber hinaus wird erklärt, wie sich das Emotionswissen im Kindergartenalter entwickelt, welche Rolle die Sprache spielt, warum die Förderung wichtig ist und welche aktuellen kommunikationsbasierten Tools geeignet sind, um das Emotionswissen bei Kinder zu fördern. Der folgende Abschnitt beschäftigt sich mit den Auswirkungen fehlender Förderung des Emotionswissens sowie den Fördermöglichkeiten im Kindergarten. Dabei wird auf bereits existierende Präventions- und Interventionsprogramme eingegangen.
Im Anschluss folgt die theoretische Einbettung sowie die Entwicklung und Umsetzung von Ems. Die verschiedenen Trainingsinhalte sowie die angewendeten Methoden werden vorgestellt. Dann folgen theoretische Vorüberlegungen sowie die Evaluation von Ems auf vier verschiedenen Ebenen. Abschließend werden in diesem Abschnitt Zielsetzungen und Fragestellungen der Evaluation formuliert. Im folgenden Abschnitt werden dann die verwendeten Methoden näher vorgestellt. Im Ergebnisteil erfolgt zuerst die Analyse der fehlenden Werte. Da in der vorliegenden Arbeit eine hohe Anzahl an fehlenden Werten vorlag, wurden die Daten imputiert und anschließend separat (originale und gepoolte Daten) dargestellt. Es folgt im Anschluss eine Darstellung der methoden- und erwartungsbezogenen Ergebnisse. Im letzten Abschnitt der Arbeit werden die Ergebnisse der Evaluationsstudie interpretiert und in die aktuelle Forschung eingeordnet. Darüber hinaus wird Ems mit drei anderen deutschsprachigen Präventionsprogrammen verglichen. Abschließend werden die Limitationen der Evaluationsstudie besprochen. Es wird auf Anregungen und einen Ausblick für zukünftige Studien eingegangen.
Das Gewaltthema ist weiterhin sowohl von emotionaler und moralischer als auch von politischer Brisanz. Mindestens jede vierte Frau in Deutschland war schon einmal von sexueller oder körperlicher Gewalt durch einen Beziehungspartner betroffen. Im Gegensatz dazu gilt die Betroffenheit von Männern bezüglich häuslicher Gewalt als umstritten, da es insbesondere zu sexualisierter Gewalt gegen Männer kaum Erkenntnisse gibt. Die vorliegende Forschungsarbeit befasst sich mit dem Thema "Sexuelle Gewalt" und legt den Fokus auf Paarbeziehungen junger Erwachsener im Raum Lüneburg, ihre Kenntnisse und Erfahrungen mit sexueller Gewalt sowie diesbezüglichen Beratungsstellen. Konkret wird empirisch untersucht, (1) welche Kenntnisse junge Erwachsene zwischen 18 und 26 Jahren aus Stadt und Landkreis Lüneburg über sexuelle Gewalt in Paarbeziehungen haben, (2) welche Erfahrungen sie mit Verletzungen gegen die sexuelle Selbstbestimmung in einer Paarbeziehung haben, (3) ob sie Kenntnis von ortsansässigen Beratungsstellen zu sexueller Gewalt und ob sie diese gegebenenfalls kontaktiert haben. In Bezug auf diese Forschungsfragen soll auch auf eventuelle Geschlechterunterschiede eingegangen werden, da Partnerschaftsgewalt eng mit dem Begriff der Gewalt im Geschlechterverhältnis verknüpft ist.
Wir sind umgeben von einer Vielzahl an Informationsströmen, die uns selbstverständlich erscheinen. Um diese digitalen Kulturen zu beschreiben, entwickeln medienwissenschaftliche Arbeiten Theorien einer Welt im Fluss. Dabei erliegen ihre Diagnosen oftmals einem Technikfetisch und vernachlässigen gesellschaftliche Strukturen. Mathias Denecke legt eine systematische Kritik dieser Theoriebildung vor. Dazu zeichnet er die Geschichte der Rede von strömenden Informationen in der Entwicklung digitaler Computer nach und diskutiert, wie der Begriff für Gegenwartsbeschreibungen produktiv gemacht werden kann.
Freiwillig Engagierte als Koproduzent:innen der Teilhabe geflüchteter Familien in frühpädagogischen Angeboten in Niedersachsen. Deutungen von freiwillig Engagierten, Koordinator:innen und geflüchteten Eltern. Während die gleichberechtigte Teilhabe geflüchteter Familien an frühpädagogischen Angeboten erklärtes integrationspolitisches Ziel ist, gibt es Hinweise darauf, dass diese besonderen Herausforderungen unterliegt und dass freiwillig Engagierte dabei häufig involviert sind. Dabei ist wenig über die Dynamiken bekannt, wie freiwillig Engagierte geflüchtete Familien im Bereich der frühkindlichen Bildung, Betreuung und Erziehung begleiten, insbesondere aus Perspektive von geflüchteten Eltern und ihren Begleiter:innen. Vor diesem Hintergrund hat die vorliegende kumulative Dissertation das Ziel, durch die sinnverstehende Herausarbeitung von Deutungen der Begleiter:innen und geflüchteten Eltern zu einem besseren Verständnis der durch freiwilliges Engagement begleiteten Teilhabe geflüchteter Familien an frühpädagogischen Angeboten beizutragen. Die Dissertation begreift freiwillig Engagierte als ‚Koproduzent:innen‘ von integrationspolitischen Zielen. Auf Grundlage von 34 Interviews mit Engagierten, Koordinator:innen und geflüchteten Eltern, welche in neun Kommunen in Niedersachsen geführt wurden, wurden in drei Artikeln die folgenden Schwerpunkte bearbeitet: Deutungen der Zusammenarbeit zwischen zivilgesellschaftlichen und staatlichen Akteur:innen durch die Begleiter:innen durch Anbindung an das Konzept Koproduktion (Artikel 1), Deutungen von Problemen und Lösungen durch die Begleiter:innen anknüpfend an die Konzepte Vulnerabilität und Agency (Artikel 2) sowie Deutungen der Eltern als Zielgruppe, mit Blick auf deren Aufbau von Vertrauen gegenüber frühpädagogischen Angeboten (Artikel 3).
Die Dissertation trägt zu den folgenden wissenschaftlichen Debatten bei: zu Dynamiken der Umsetzung von Policies, wenn zivilgesellschaftliches Engagement dabei eine zentrale Funktion einnimmt, sowie zur Umsetzung integrationspolitischer Ziele im konkreten Bereich der Nutzung frühpädagogischer Angebote durch geflüchtete Familien. Es zeigt sich, dass freiwillig Engagierte zwar staatliche Akteur:innen ergänzen und damit maßgeblich zur Umsetzung integrationspolitischer Ziele beitragen. Gleichzeitig deutet dies aber auf strukturelle Hürden hin und wirft die Frage auf, inwieweit das freiwillige Engagement hier die Verantwortung für staatliche Aufgaben übernimmt. Dabei treten in der Zusammenarbeit zwischen zivilgesellschaftlichen und staatlichen Akteur:innen häufig Konflikte auf, welche auf divergierende Deutungen des Begriffs ‚Integration‘ und eine fehlende Ausdefinition konkreter sich aus den integrationspolitischen Zielen ableitender Bedarfe beruhen.
Diese Arbeit untersucht, wie die massenhafte Verbreitung von Web Videos das Verhältnis von audiovisueller Zeugenschaft und medialem Ereignis beeinflusst: Wie lässt sich das Zusammenspiel von Medien, sozialer Dynamik und Ereignissen beschreiben? Was wird wann unter welchen (medialen) Bedingungen wie zum Ereignis? Wer hat die Deutungshoheit über dieses Ereignis und wie erlangt man sie? Gibt es privilegierte Formen der Zeugenschaft? Und unter welchen Umständen haben diese Zeugnisse politische Relevanz?
Keine dieser Fragen ist neu und dennoch stellen sie sich in digitalen Kulturen mit neuer Dringlichkeit und Bedeutung. Denn durch die Proliferation medialer Produktions- und Rezeptionspraktiken sowie die Medialisierung der Distribution multiplizieren Social Media-Plattformen ästhetische, narrative und institutionelle Kontextualisierungsprozesse von Ereignissen. Dies vergrößert mediale Partizipationsmöglichkeiten, geht aber zugleich einher mit Glaubwürdigkeits- respektive Geltungsverlusten herrschender sozialer Akteur*innen und medialer Formen. Die daraus resultierenden medialen wie sozialen Repräsentationskrisen destabilisieren das Feld medialer Zeugenschaft. Sie bilden aber zugleich auch einen Resonanzboden für Kritische Medienereignisse.
Unter diesem Titel entwirft die Arbeit ein Konzept sozio-medialer Ereignisse, das weder Medien und Ereignis gegeneinander ausspielt noch das Ereignis zum massenmedialen Genre degradiert. Stattdessen erfasst der Begriff kritischer Medienereignisse soziale und medienästhetische Dynamiken in einem gleichberechtigten Zusammenspiel. Dahinter steht die durch den Vergleich von Rainer Leschkes Theorie medialer Formen mit Pierre Bourdieus Praxistheorie gestützte Annahme, dass mediale und soziale Formen mehr miteinander gemeinsam haben, als es unversöhnliche Gegenüberstellungen von medialem und sozialem Apriori vermuten lassen. Im Sinne einer medienmorphologisch geschulten Bourdieu-Lektüre kann dann von kritischen Medienereignissen die Rede sein, wenn ähnlich gelagerte Krisen in sozialen Kräfte- und medialen Formenfeldern zeitgleich eskalieren – wie es gegenwärtig im doppelten Glaubwürdigkeitsverlust politischer Repräsentant*innen (Akteur*innen) und medialer Repräsentationen (Formen) zu beobachten ist. Es handelt sich hierbei nicht deshalb um Medienereignisse, weil sie durch Medien repräsentiert werden, sondern vielmehr deshalb,weil sie der öffentlich sichtbare Ausdruck medialer Umbrüche sind, in denen soziale und mediale Felddynamiken synchronisiert werden und die Neuaufteilung des Sinnlichen mit der des Sozialen zusammenfällt.
In diesem Zusammenhang spielen Web Videos deswegen eine privilegierte Rolle, weil sie als audiovisuelle und kommunikative Prothesen sowohl den Handlungsspielraum von Augenzeug*innen erweitern als auch das Publikum auf eine neue Art und Weise adressieren und einbinden: Man ist nicht länger nur distanzierte Beobachter*in einer Live-Berichterstattung, sondern wirkt aktiv mit am Geschehen und dessen Beglaubigung. Diese neuen, partizipativen Formen der Zeugenschaft erschöpfen sich somit nicht in einer dokumentarischen Funktion, sondern fordern immer auch zur Teilnahme am jeweiligen Ereignis auf. Sie zeichnen sich dabei durch eine radikal subjektive Ästhetik der Authentizität aus, die weniger auf Objektivität als auf affektive Mobilisierung abzielt. Web Videos verändern auf diese Weise das etablierte Kräfte- und Vertrauensverhältnis im soziomedialen Feld der Zeugenschaft in epistemologischer, ethischer und politischer Hinsicht, weil sie dieses Feld für (neue) Formen und Akteur*innen öffnen, die mehr oder weniger bewusst die hegemoniale Position massenmedialer Institutionen und Formen in Frage stellen. Diese Erschütterungen der sozio-ästhetischen Ordnung im Feld der Zeugenschaft offenbaren einen grundsätzlich politischen Gehalt von Web Videos, der immer dann explizit hervortritt, wenn Web Videos Widerspruch und Protest gegen die herrschenden Verhältnisse artikulieren. In kritischen Medienereignissen wie der (gescheiterten) Grünen Revolution in Iran wird daher das politische Potential von Web Videos aktualisiert und situativ beschreibbar. Web Videos machen ihre Betrachter*innen somit in einem doppelten Sinn zu Zeug*innen: Erstens dokumentieren sie ein Geschehen und geben somit der Synchronisation feldspezifischer Krisen des Sozialen und Medialen eine anschauliche mediale Form. Zweitens fungieren sie als Formen des symbolischen Austauschs, die an der Umwertung des symbolischen Kapitals in medialen und sozialen Feldern entscheidend mitwirken. Weil sie somit zugleich Ausdruck wie Katalysatoren dieser Legitimitätsverluste sind, fungieren sie gegenwärtig als ebenso umstrittene wie privilegierte Zeugnisse kritischer Medienereignisse.
This research report presents a transdisciplinary student research project on developing climate resilience of communities in Marine Protected Areas in the Lesser Antilles. For the second time, the Leuphana University Lüneburg and the Sustainable Marine Financing Programme (SMF) of the Deutsche Gesellschaft für internationale Zusammenarbeit (GIZ) partnered up. The first project on the Caribbean Island Dominica showed that community resilience is a complex concept that is not yet well understood. Building on these findings, this year’s project broadened the scope in addressing the effect of varying local conditions on climate resilience on four different Caribbean islands: Dominica, Grenada, St Lucia, and St. Vincent and the Grenadines. For the GIZ, the research project aimed at improving the understanding of the socio-ecological resilience framework for tackling problems of Marine Managed Areas (MMA) and Marine Protected Areas (MPA). Also, it enabled new thoughts on how the GIZ and other development agencies can more effectively assist island states to better cope with the challenges of climate change. The role of the students from the “Global Environmental and Sustainability Sciences” programme of Leuphana University included the design of four transdisciplinary research projects to study the effect of varying local conditions in disaster-prone regions in the Southern Caribbean on climate resilience. The developing island states in the Caribbean are extremely vulnerable to more frequent and intense natural hazards while relying on ecosystem services that are threatened by extreme weather events, in particular Hurricanes. After such adverse events, low economic stability leads to a dependency of the states on international assistance. To decrease the vulnerability to shocks, counteracting measures that encourage learning and adaptation can increase the resilience against extreme weather events and their consequences. Concepts that were considered during the design of the transdisciplinary research projects were the adaptation of systems, diversity and stakeholder participation and resilience-focused management systems. Building on the results from last year in Dominica, the establishment of a four islands design allowed for greater comparison to better understand community approaches to solve a concrete sustainability problem: securing livelihoods while protecting natural and cultural resources. The research methods of a literature review, stakeholder mapping, semi-structured interviews, scenario development and visioning were used in the projects. A comparison of the four TD projects revealed four overarching lessons. First, all countries recognise a need for restoration and conservation projects, i.e., nature-based solutions implemented and managed by the local community in the MPA. Furthermore, all four cases show that the limited participation of local people in the management and organisation of the MPA is a factor constraining community resilience. Third, this TD project highlights the importance to distinguish climate change as an event or as a process. When climate change occurs as a series of disaster events (e.g., hurricanes, floodings, and heatwaves) in combination with s gradual degradation of natural ecosystems (e.g., coral bleaching and ocean warming), people in MPA communities show highly adaptive and restorative behaviour. Finally, this project was an attempt to realize a cross-cultural and virtual transdisciplinary project. The research approach of transdisciplinarity links different academic disciplines and concepts, and non-scientific stakeholders are included to find solutions for societal and related scientific problems. A major learning was that in virtual TD projects particular attention needs to be paid to setting clear boundaries and be explicit about success criteria. Nonetheless, the findings of the projects provide valuable learning lessons to be applied in practice and that can prove useful for future research.
To respond to the challenges of the Anthropocene, scholars from various disciplines increasingly emphasize that a mere outer transformation is insufficient and that we also need an inner transformation that addresses deep leverage points. Yet, the open questions are how the inner and outer dimensions relate to each other
and how inner transformation might lead to outer transformation. How we attempt to answer these questions is determined by our dominant paradigm. Paradigms define how we understand and shape the world, and thus, they define how we conceptualize challenges, such as inner and outer transformation. Various authors argue that the dominant paradigm, which is characterized by reductionism, empiricism, dualism, and determinism, might be a root cause for insufficiently addressing sustainability challenges. As an alternative, many argue for a relational paradigm, which understands complex phenomena in terms of constitutive processes and relations. A relational paradigm might offer possibilities to reconceptualize inner and outer transformation in the Anthropocene and might shed new light on how to integrate both in sustainability science. Yet, it is still being determined how a relational paradigm can contribute to the understanding of inner and outer transformations towards sustainability in the Anthropocene. Therefore, this dissertation's overarching scope is to contribute to systems change towards a more social-ecological future by generating insights into and exploring possibilities of a relational paradigm for inner and outer transformation in the Anthropocene. This thesis is divided into three sub-questions. The first research question aims to contribute to transformation research by increasing the theoretical understanding of a relational paradigm. The second research question aims to contribute to transformative research by developing a transformative educational case study grounded in a relational, justice-oriented approach. The third research question aims to contribute to transformation research by analyzing how a relational paradigm might contribute to policies and practices for sustainable lifestyles. The results indicate that inner and outer transformation in the Anthropocene can be reconceptualized as paradigm-ing relationality in the Ecocene. "Paradigm-ing" as an active verb, reconceptualizes inner and outer transformation into ontologies, epistemologies, ethics, and socialecological realities that are ongoing, nonhierarchical, nonlinear, dynamic, co-creative processes of intra-action. The Ecocene decenters the human and attends to what we might be able to intra-actand become-with. These insights can offer unexplored perspectives to address sustainability challenges and increase our capacities to respond in novel ways.
Die vorliegenden kumulativen Habilitationsschriften fokussieren auf die sozialen Prozesse, die bei der Standardisierung und der Dekonstruktion von soziokulturellen Differenzen zu Tage treten. Der Schwerpunkt liegt dabei auf den Arten und Weisen, in denen verschiedene Konzepte der Diversität und Alterität in der kuratorischen Praxis globaler Musik- und Performing Arts-Festivals (de-)konstruiert werden. Aus transkultureller Perspektive werden jeweils exemplarisch die vielfältigen Politik(en) der Macht im Feld der globalen Künste diskutiert, die mit komplexen sozialen Prozessen der Normierung und Konventionalisierung als auch mit Gegenmaßnahmen und Dekolonialisierungsbestrebungen einhergehen sowie strukturierenden Rahmenbedingungen unterliegen. Dadurch wird das komplexe Zusammenspiel von Diskursen (beziehungsweise Symbolen und Narrativen) und Performanz (beziehungsweise von Praktiken und sozialen Beziehungen) als auch von Repräsentation (beziehungsweise von Politiken und Strukturen) von Diversität und Alterität im Forschungsfeld untersucht. Damit profilieren die Schriften eine postkolonial orientierte Kulturforschung, die sich sowohl auf Kontingenzen des menschlichen Zusammenlebens als auch auf ihre symbolischen Routinisierungen, soziale Ungleichheiten, ambivalente sowie konflikthafte Aushandlungsprozesse und zugrundeliegende Machtverhältnisse beziehen.
In seinem ersten Kinofilm „Abschied von gestern“ erzählt Alexander Kluge 1966 den Fall »Anita G.«. Ausgehend von diesem Film stellt sich die Frage nach den Rechtsverhältnissen in Kluges Geschichten: vom Sachverhalt zum Fall, vom Gesetz zur Erzählung, von der Ermittlung, die dem Urteil schließlich widersteht. Interessant ist in diesem Zusammenhang auch die universitäre „Vorgeschichte“ des Autors und Filmemachers. Mit dem Jura-Studium in Marburg und Frankfurt schreibt sich Kluge 1950 in die universitären Abläufe ein, denen er als Referendar institutionell folgt: im Amtsgericht Wiesbaden und im Oberlandesgericht Frankfurt, in der Jugendstrafanstalt, im Landgericht und der Kammer für Handelssachen. An diesen Stationen begegnet er Vorfällen und Prozessen, die seinen filmischen und literarischen Arbeiten voran gehen. Denn Kluges Figuren stehen vor dem Gesetz und folgen eher einer Poetik des Falls als seiner Auflösung.
Diese Bachelorarbeit hat das Ziel, die Wirkung der innerhalb der PPS-Hauptaufgabe Produktionsprogrammplanung verwendeten Verfahren auf die logistischen Zielgrößen der unternehmensinternen Lieferkette zu modellieren. Dafür werden zunächst die Grundlagen der Produktionsplanung und -steuerung (PPS) sowie das Hannoveraner Lieferkettenmodell (HaLiMo) dargelegt. Es werden die zur Erfüllung der PPS-Aufgaben Absatzplanung und langfristige auftragsanonyme Ressourcengrobplanung verwendeten Verfahren aufgegriffen und detailliert beschrieben. Anschließend werden die Wirkbeziehungen zwischen diesen Verfahren und den logistischen Zielgrößen modelliert, wobei verschiedene Fallbeispiele betrachtet werden, welche als Ausgangspunkt dienen und jeweils unterschiedliche Auswirkungen auf die Zielgrößen aufzeigen. Aus den Modellen geht hervor, dass die Auswahl geeigneter bzw. adäquater Verfahren sowie die richtige Durchführung dieser unmittelbar auf die Zielgrößen der unternehmensinternen Lieferkette einwirken. Die Ergebnisse dieser Bachelorarbeit akzentuieren somit die Auswirkungen sowie die Relevanz der im Rahmen der Produktionsprogrammplanung verwendeten Verfahren und erleichtern die Handhabung der PPS-Konfiguration in einem praxisnahen Umfeld.
In the study, predictive models for predicting therapy outcome are created using the dataset from E-COMPARED project, which belongs to the so-called type 3 models that use data from the intervention and preintervention phases to predict treatment outcomes, which can help to adapt intervention to maximize treatment. The predictive models aim to classify patients into two groups, improved and nonimproved. Since it is important to determine whether the models contribute to improvement of treatment, research questions that can contribute to the usage of type 3 models are established. The study focuses on the following three questions: (1) How accurately can the therapy outcome be predicted by various machine learning algorithms? Answering this question can let the people concerned obtain information about the reliability of contemporary predictive models. In addition, if the predictive power of the models is good, it is more likely to be used to assist therapists’ decisions. (2) Which kind of data is more important in predicting the therapy outcome? The answer to this question can show which dataset should be considered first to make better predictive models. Therefore, it can be helpful for researchers who want to make predictive models in the future and eventually help to facilitate personalized therapy. (3) What are the features with strong predictive power? The answer to this question can affect the people concerned, especially therapists. Therapists can use the most influential features revealed to adjust and improve future treatments.
New media and digital technologies open up numerous possibilities to document different versions of reality, which makes it essential to examine how they transform the logic behind the creation and production of documentaries in digital cultures. The goal of this study is to inves-tigate the integration between the traditional documentary and new media: the interactive doc-umentary, in the context of the different sociocultural and technological environments of China and the West. Accordingly, a comparative study on the evolution and integration of these two fields was carried out. The documentary genre brings with it a method of classification and various modes of representing reality, while new media provide new approaches to interactivity as well as the production and distribution of interactive documentaries. In this context, the study examines the differences and characteristics of interactive documentaries in China and the West. Interactive documentaries grow and change as a continuously evolving system, engaging the roles of the author and the user, such that their roles are mixed for better co-expression and the reshaping of their shared environment. In addition, an analytical approach based on the types of interactivity was adopted to explore this new form of documentary both to deduce how the stories about our shared world can be told and to understand the impact of interactive doc-umentaries on the construction of our versions of the reality as well as our role in it.
Können die kulturellen Praktiken und wertschöpfenden Handlungen innerhalb von Musikkulturen mit dem Begriff der Produktivität erfasst werden? Dieser Frage geht diese Dissertation am Beispiel der Technokultur nach. Sie zeigt auf, wie Menschen in solchen Vergemeinschaftungsformen für sich und andere Werte schaffen. In Abgrenzung zu wirtschaftswissenschaftlichen Formulierungen wird hier von Werte-Schöpfung gesprochen. Zugrundeliegend ist ein kulturwissenschaftliches Verständnis von Produktivität, welches den Fokus auf unterschiedliche Arten der Produktion und Werte-Schöpfung legt. Es wurden Akteur*innen, ihr Handeln und ihre musikalischen, kulturellen, sozialen, sinnstiftenden sowie ökonomischen Produktionen innerhalb der Technokultur auf unterschiedlichen Ebenen analysiert. Dies umfasst Produzierende und Partizipierende, Gemeinschaften, Szenen, Städte, Festivals und Ökonomie.
Das methodische Vorgehen basiert auf (Szene-)Ethnographie als Verfahren der Datengenerierung, was Interviews mit Experten (DJs, Produzenten, Labelmacher, Angestellte von Musikwirtschaftsbetrieben, Veranstalter) und Partizipierenden sowie teilnehmende Beobachtungen (Clubs, Festivals, Berlin, Köln, Lärz und Ruhrgebiet) umfasst. Zusätzlich wurden Technotracks musikhermeneutisch analysiert, um die Vielfalt der Affordanzen an Technomusik aufzuzeigen. Zur Datenauswertung wurde auf das Grounded Theory-Verfahren der Situationsanalyse (Clarke 2012) zurückgegriffen.
Leitend für die Analyse sind die Konzepte der „Sonic Bodies“ und des „Soundings“ von Julian Henriques (2011), des Musickings (Small 1998) sowie der Begriff des „Sonischen“. Im Zentrum der Arbeit steht das Handeln von Menschen mit Klang und Musik in musikalischen Soziokulturen und der wechselseitige Einfluss mit der umgebenden Stadt und Gesellschaft. Die Dissertation zeigt auf, wie die Sonic Bodies der Technokultur persönliche, soziale, kulturelle und ökonomische Werte für sich schöpfen, auf dieser Grundlage ihr Handeln austarieren und sich mit anderen Produzierenden und Partizipierenden zu temporären oder beständigen Werte-Schöpfungsnetzwerken zusammenschließen. Die Möglichkeiten der Werte-Schöpfung sind durch mehrere Konfigurationen gerahmt. Darunter fallen sozialstrukturelle, subjektive und subkulturelle bzw. kulturindustrielle Faktoren, die das Handeln und die Werte-Schöpfung der Sonic Bodies prägen. Diese umfassen u. a. Faktoren sozialer Ungleichheit, individuelle Faktoren und Faktoren, die der Feldstruktur der Technokultur entspringen.
Contemporary society is shaped by the idea that time is, above all, a scarce economic resource that must be used efficiently – “time is money” not to be wasted. Increasingly, however, scientific findings suggest that such a way of perceiving of time seems a major cause of the current global climate and sustainability crisis. So far, this research has often focused on mobility, energy consumption, or the structural conditions of the social organisation of time. Considerably less work has been carried out in relation to the role of individual time-related needs regarding unsustainable consumption behaviour, although consumer research has been addressing needs-oriented approaches to sustainable consumption for a long time. Environmental and Sustainability Education (ESE) is considered an essential strategy to achieve the global sustainability goals of Agenda 2030. Internationally, as well as on a national level, ESE is increasingly mainstreamed in educational curricula and practice, including in Germany. Given the relation between time, needs and sustainability, it appears valuable to inquire into this field from the perspective of ESE – where time as a resource for sustainability has received comparatively little attention so far. The core research interest of this cumulative dissertation is therefore the question of how the connection between time, our needs and sustainability can be conveyed through pedagogical approaches. The inquiry used an exploratory, qualitative research design to address this question. In a first step, the concept of sustainability-related time use competence was developed. This then served as a guiding concept for the understanding of time used in this work and as the overall objective for the educational intervention developed and piloted as part of the research. Next, a content analysis of German curricula was conducted with the aim of determining whether and to what extent these address the relation between time and sustainability. The results show curricula contain only a few starting points that encourage a connection between time and sustainability in school lessons. The study further indicates that an understanding of time as a scarce resource to be used efficiently has prevailed in school contexts so far. Accordingly, pedagogical approaches to time often focus heavily on time management. The next step involved developing and piloting a time use competence curriculum in cooperation with three partner schools, using an Action Research Approach. This intervention followed the pedagogical approach of Self-Inquiry Based Learning (SIBL) seeking to sensitise learners to the relation between individual needs and consumer behaviour. During implementation, which lasted one semester, students logged their time, were encouraged to reflect on their personal needs, and subsequently implement individual change projects related to time use. This was embedded in continuous reflective individual and group exercises. The results strengthen the hypothesis that there is a relation between time use and sustainability. Furthermore, the pedagogical approach of SIBL has proven suitable to enable students to reflect on their time use and to raise their awareness of the role of individual needs. Participants reported that changes in time use did indeed increase their personal well-being. This, according to existing evidence from sustainability science, has been found to potentially lead to more sustainable behaviour. At the same time, previous research found that behavioural changes that lead to an increase in well-being do not automatically lead to more sustainable consumption behaviour. Rather, personal attitudes and motivation regarding sustainability are important. This suggests that future ESE interventions aiming at changes in time use should always also contain sufficient opportunities for reflection of values and motives. A third empirical study was carried out, inquiring into students’ time use during the eriod of COVID-19-induced school closures, using a Grounded Theory Approach. Since the pandemic disrupted young peoples’ routines drastically, the research focused on which kinds of learning experiences students made during this time and which insights can be derived for ESE. The results of the semi-structured interviews with 69 participants show first that the narrative of students’ learning loss, which is predominant in the current educational science, policy, and media discussion, falls short. Instead, a variety of learning experiences are revealed, such as learning one’s own learning and everyday rhythms or creatively adapting consumption habits to the new situation of “lockdown”. Overall, a key finding of this work is that students are currently unable to adequately realise their time-related needs. In view of the findings from research on time and sustainability, one recommendation is therefore that everyday school life could give students more space to organise their time according to their needs. This might be done through pedagogical measures in the classroom, but would also require a stronger institutional anchoring, for example, within the framework of the Whole Institution Approach to Sustainability (WIA), to bring about lasting changes. Furthermore, it would be advisable to give the topic of time in connection with sustainability more space in curricula and in teacher training. This gives rise to future research needs, such as the need to explore how time use competence can be included into everyday pedagogical practice, for instance, by adapting the SIBL approach piloted in a school setting here. It would also call for longitudinal research designs, and it would be of interest to research how time use competence might be incorporated into school development processes. Given the ongoing debate about the impact of the COVID-19 pandemic on schools and education in general, the findings of the research can stimulate both further research and future ESE practice. The experiences during the pandemic have shown that schools and all actors involved including students and teachers, are so far insufficiently prepared to handle crises. Here, the approach to time use competence piloted in this work can offer valuable stimulations for ESE research and practice. This is especially true since it is compatible with existing approaches to key competencies for sustainability by seeking to complement them with a stronger focus on individual, needs-oriented time shaping.
The requirements for the design of information and assistance systems in labour-intensive processes are interdisciplinary and have not yet been sufficiently addressed in research. This dissertation analyses, evaluates and describes possibilities for increasing the effectiveness and efficiency of labour-intensive processes through design-optimised socio-technical systems. The work thus contributes to further developing information and assistance systems for industrial applications and use in healthcare. The central dimensions of people, activity, context and technology are the focus of the scientific investigations following the Design Science Research paradigm. Design principles derived from this, a corresponding taxonomy, and a conceptual reference model for the design of socio-technical systems are the results of this dissertation.
Ein- und Zweifamilienhäuser sind in Deutschland die meistgefragte Wohnform und werden gemäß Prognosen auch in naher Zukunft fester Bestandteil der Neubautätigkeit bleiben. Gleichzeitig mahnen Ökologen und Stadtplaner seit längerem die Schwachpunkte der Typologie an und kritisieren beispielsweise die Zerschneidung der Landschaft, den hohen Flächenbedarf und die damit einhergehende Bodenversiegelung. Entgegen dieser Kritikpunkte zeigen andere Studien jedoch auch ökologisches Potenzial von Ein- und Zweifamilienhäusern auf. Beispielsweise können Hausgärten bei entsprechender Gestaltung zum Erhalt der Biodiversität beitragen und die Konnektivität von Habitaten verbessern. Vor diesem Hintergrund analysiert die vorliegende Arbeit die Potenziale der Typologie Ein- und Zweifamilienhaus auf Basis des Cradle to Cradle (C2C) Prinzips. Ziel der Arbeit ist es, die Umsetzbarkeit eines positiven Fußabdrucks nach C2C zu untersuchen.
Als Betrachtungsgegenstand werden Ein- und Zweifamilienhäuser in Holzfertigbauweise gewählt, da sich durch die vertragsrechtliche Sonderstellung des Fertighausherstellers als Generalunternehmer und deren interne Entwicklungsabteilungen die Möglichkeit zur ganzheitlichen Umsetzung eines positiven Fußabdrucks ergibt. Zudem nahm der Anteil von Fertighäusern unter den genehmigten Ein- und Zweifamilienhäusern in den letzten Jahren stetig zu und betrug im Jahr 2019 circa 21 Prozent. Davon entfällt der weitaus größte Teil auf Holzbauweisen.
Darüber hinaus wird in der vorliegenden Arbeit untersucht, ob durch die Anhebung der Ziele des nachhaltigen Bauens C2C Gebäude geschaffen werden können. In Verbindung damit wird diskutiert, ob gesetzliche Anreize zur Änderung des Bewusstseins aller Baubeteiligten – weg von der Minimierung negativer Auswirkungen im Sinne der Ökoeffizienz hin zu einem positiven Fußabdruck im Sinne der Ökoeffektivität – führen können. Die Untersuchung des Zusammenhangs zwischen nachhaltigem Bauen und C2C im Bauwesen erfolgt anhand eines Vergleichs verschiedener C2C Leitfäden und der C2C Produktzertifizierung mit Nachhaltigkeitsbewertungssystemen für kleine Wohngebäude. Wie auch bei der Frage nach dem positiven Fußabdruck, stehen dabei die Themen kreislauffähige Materialien, Rückbaupotenziale, Innenraumluftqualität, Wasserkreisläufe, Nutzung erneuerbarer Energien und Förderung von Biodiversität im Vordergrund. Die Umsetzbarkeit eines positiven Fußabdrucks wird anhand verschiedener Fallstudien untersucht. Diese umfassen C2C inspirierte Einfamilienhäuser sowie Ein- und Zweifamilienhäuser in Holzfertigbauweise, die nach dem Bewertungssystem
Nachhaltiger Kleinwohnhausbau (BNK) zertifiziert wurden. Für eine vertiefte Analyse der Themen kreislauffähige Materialien und Rückbaupotenziale werden der Rückbau eines Einfamilienhauses in Holzfertigbauweise und die Versetzung eines Zweifamilienhauses in Holzfertigbauweise begleitet und ausgewertet. Die Untersuchung wird durch die Zerlegung eines Außenwandelements in Holztafelbauweise und die Bewertung dessen Trennbarkeit und Verwertbarkeit
ergänzt.
This cumulative dissertation "Corporate Social Responsibility (CSR) Communication: Four empirical studies on the German banking industry" presents how commercial banks in Germany communicate their ambitions and commitment regarding corporate responsibility - i.e., CSR. The results of the first article show that the quality of mandatory non-financial reporting needs to be improved and that certain characteristics (e.g., previous reporting experience, reporting format and standard) have a positive influence on reporting quality. The second article shows that the CSR reporting scope on bank websites also has room for improvement and that various banking characteristics such as size, capital market orientation, media visibility or public ownership have an influence on communication. The third article illustrates that credit institutions in Germany are increasingly using social media for CSR communication, but that CSR communication strategies differ (Facebook vs. Twitter). The fourth article discusses CSR communication using advertisements and shows that the conceptual design of advertisements should be in line with the credit institution's business model and is therefore beneficial.
Die negativen Auswirkungen des modernen Konsumverhaltens sind heute weithin bekannt, dennoch ist insbesondere die Modebranche weiterhin durch sehr niedrige Preise, kurze Produktlebensdauer und Massenkonsum gekennzeichnet. Die Folgen für Mensch und Umwelt sind gerade in der Kleidungsindustrie frappierend. Eine Veränderung des Konsumverhaltens in der breiten Bevölkerung hin zu einer Reduktion von Neukäufen, einer langen Nutzungsdauer der vorhandenen Kleidung und zum Kauf ökologisch und sozial verträglich hergestellter Produkte ist somit dringend notwendig. Ein wichtiger Erfolgsfaktor für die effektive Ansprache der Konsumierenden durch nachhaltiges Marketing von NGOs oder entsprechende Unternehmen ist die Berücksichtigung handlungsrelevanter Persönlichkeitsmerkmale aufseiten der Zielgruppe. Die wissenschaftliche Literatur zu Prädikatoren nachhaltiger Verhaltensweisen weist darauf hin, dass persönliche Werte eine wichtige Rolle für dessen Umsetzung spielen. Gleichzeitig wirkt sich insbesondere im Kleidungskonsum auch das Geschlecht bzw. Gender der/des Konsumierenden auf das Verhalten aus. Es existieren zahlreiche Hinweise darauf, dass das Geschlecht bzw. Gender zudem im Zusammenhang mit den Werteprioritäten einer Person steht. Ausgehend von dieser Datenlage werden in dieser Arbeit drei Themen mit Relevanz für die Nachhaltigkeitsforschung – persönliche Werte, Geschlecht/Gender und nachhaltiger Kleidungskonsum – zusammengeführt und auf ihre komplexe Wirkungsbeziehung hin untersucht. Auf Grundlage von Fokusgruppeninterviews wird erforscht, welche individuellen Wertorientierungen sich in welcher Weise und welcher Konstellation positiv auf ein nachhaltiges Kleidungskonsumverhalten auswirken und welche geschlechterspezifischen Unterschiede hierbei erkennbar werden. Durch die Berücksichtigung persönlicher konsumrelevanter Motivatoren und deren individueller Ausprägung werden Potenziale für eine zielgerichtete Verstärkung nachhaltigen Konsumverhaltens in der breiten Bevölkerung aufgedeckt. Dazu werden (1) vier Wertorientierungen mit Einfluss auf nachhaltigen Kleidungskonsum identifiziert, (2) ihre kausale Beziehung zu nachhaltigem Kleidungkonsum analysiert, (3) die geschlechtlichen Unterschiede berücksichtigt und (4) mit Gender ein Ansatzpunkt für die Erklärung der gefundenen Unterschiede angeführt. Zur Aufarbeitung der Daten wird die fsQCA zur Untersuchung des Themas nachhaltiger Kleidungskonsum angewandt. Die Natur dieser Auswertungsmethode, welche statt kausaler unidirektionaler Zusammenhänge zwischen zwei Variablen Schnittmengen zwischen zwei oder mehr Phänomenen untersucht, trägt zu einer neuen Perspektive auf die Beziehung zwischen Werten und nachhaltigem Kleidungskonsum bei. Eine wichtige Forschungsleistung dieser Arbeit besteht darin, gerade das Zusammenspiel der verschiedenen Werte zu betrachten und damit ein tieferes Verständnis von wichtigen Einflussfaktoren für nachhaltigen Kleidungskonsum zu ermöglichen. Dies ist ein Ansatz, welcher über die bisher existierenden Forschungserkenntnisse hinausgeht und für zukünftige Forschungsvorhaben zu Motiven für nachhaltigen Konsum hilfreich sein kann. Aus den gewonnenen Erkenntnissen werden Handlungsempfehlungen für die Kommunikation von NGOs und Unternehmen mit nachhaltiger Ausrichtung abgeleitet, wie eine zielgerichtete Ansprache zur Intensitätssteigerung dieser bereits vorhandenen Bedingungen gestaltet werden kann.
Wenn in empirischen Studien nach der Arbeitszufriedenheit gefragt wird, dann zielen die verwen-deten Fragen in aller Regel auf die gesamthafte Beurteilung der Arbeitssituation und nicht etwa auf das mit der Arbeitstätigkeit verbundene Gefühlserleben. Um letzteres geht es im vorliegenden Bericht. Das Arbeitserleben ist zweifellos ein wichtiges Element, das in die Beurteilung der Arbeits-situation einfließt, es ist aber nur ein – wenngleich bedeutsamer – Faktor unter vielen anderen, die die Arbeitszufriedenheit bestimmen. Als Analysebasis dienen die Daten der Telefonumfrage des European Survey of Working Conditions (EWCTS) von 2021 in 36 europäischen Ländern. Er-gänzend werden die Daten des European Survey of Working Conditions (EWCS) von 2015 analy-siert. Berichtet wird über die Unterschiede im Arbeitserleben von Unternehmern und Arbeitneh-mern. Außerdem wird untersucht, welche Belastungsfaktoren auf das Arbeitserleben einwirken. Auf der Basis der Analyseergebnisse wird ein allgemeines Verhaltensmodell entwickelt, das, neben der Erlebniskomponente, auch die Urteilskomponente enthält. Das Arbeitserleben und die Zufrie-denheit mit den Arbeitsbedingungen werden danach ganz wesentlich von der Wertschätzung be-stimmt, die man für seine Arbeit erfährt. Die Arbeitsbelastungen und die Autonomie spielen dage-gen kaum eine Rolle. Das mindert allerdings nicht die grundsätzliche Bedeutung dieser beiden Va-riablen. Die diesbezüglich schwachen Korrelationen finden ihren Grund mutmaßlich im engen Re-ferenzrahmen der subjektiven Skalierung.
This dissertation comprises three stand-alone research papers dealing with different aspects of labor market characteristics: bonus payments and the gender pay gap; second job holding; and workers un-covered by collective bargaining. The first paper ``Non-base compensation and the gender pay gap'' investigates whether and how non-base compensation in the form of bonus payments, overtime pay, and shift premia contributes to the gender pay gap.
Unionization along with collective bargaining coverage has been on the decline on recent decades. Using German administrative data, the second paper examines which workers in firms covered by col-lective bargaining agreements still individually benefit from these union agreements, which workers are not covered anymore and what this means for their wages.
The third paper studies the development and persistence of second job holding in Germany after a legislative change in the year 2003 allowed the extensive dispensation of marginal second jobs from taxes and social security contributions. Using data from the German Socio-Economic Panel I document a substantial increase in second job holding in Germany since 2003 and find in a dynamic panel model setting that there is true state dependence in second job holding.
Die Einführung von Industrie 4.0 und der damit verbundene Wandel des Produktionsumfeldes führen zu neuen Herausforderungen, bieten auf der anderen Seite aber auch neue Möglichkeiten für Unternehmen. Ausgehend von den Herausforderungen der Produktionsplanung und Steuerung als zentrales Element der Produktherstellung, z.B. Komplexität, Dynamik und neue Organisationsformen, werden bestehenden Methoden der Reihenfolgeplanung auf ihre Tauglichkeit zur Verwendung hin geprüft. Die Analyse zeigt, dass Aspekte wie die Ableitung von Handlungen und der Transfer von Wissen in unbekannten Situationen zu den größten Herausforderungen für bestehende Verfahren zählen. Die in der Arbeit neu entwickelte Methode zur dynamischen Auswahl und Anpassung von Reihenfolgeregeln in komplexen Fertigungssystemen mit bestärkendem Lernen greift diese Herausforderungen auf und untersucht mögliche Lösungsstrategien. Die im Rahmen der Arbeit neu entwickelte Methode wird über ein Spektrum an unterschiedlichsten Szenarien evaluiert und mit anderen Methoden verglichen. Dabei werden verschiedene Ausprägungen und Komplexitäts-Niveaus von Handlungen, der Beobachtungsraum und die Mengen an benötigten Daten detailliert analysiert. Schlussendlich zeigt sich, dass die neue Methode in der Lage ist, die Anforderungen an die Produktionsplanung- und Steuerung zu erfüllen und in bekannten wie in unbekannten Szenarien gut Leistung zu erbringen. Zusätzlich ist die Methode in der Lage menschenähnliche Leistungen zu bringen und kann in einem realen Anwendungsfall zur Unterstützung der Produktionsplanung und -Steuerung genutzt werden.
Die Aufgabe ist zentrales Gestaltungsmittel von Unterricht. Verschiedene Fachdidaktiken untersuchen, aus welchen fachlichen und sprachlichen Merkmalen ihre Aufgabenstellungen aufgebaut sind und welche Bedarfe daraus für die Lehr-Lern-Situationen resultieren. Im Fach Politik bestehen diesbezüglich nur unzureichende und nicht systematisierte Forschungsergebnisse. Das Ziel dieser Dissertation ist es, sich diesem politikdidaktischen Desiderat anzunehmen und die fachliche und sprachliche Komplexität von Politiklernaufgaben näher zu bestimmen, indem das Untersuchungsfeld kategorisiert wird. Hierfür wird die Erstellung und Evaluation eines fachlichen und sprachlichen Kategoriensystems für Lernaufgaben im Fach Politik dargeboten. Mithilfe dieser Kategoriensysteme werden 669 Lernaufgaben zum Thema „Das politische System der Bundesrepublik Deutschland“ analysiert, 210 Lernaufgaben aus der Sekundarstufe I und 459 Lernaufgaben aus der Sekundarstufe II. Die Analyseergebnisse werden geordnet nach den folgenden Forschungsfragen präsentiert:
1. Welche fachlichen Merkmale kennzeichnen Lernaufgaben in (ausgewählten) Politik-Schulbüchern?
2. Welche sprachlichen Merkmale kennzeichnen Lernaufgaben in (ausgewählten) Politik-Schulbüchern?
3. Welche fachlichen und sprachlichen Zusammenhänge kennzeichnen Lernaufgaben in (ausgewählten) Politik-Schulbüchern?
4. Welche Schulbuch-Spezifika lassen sich auf Lernaufgabenebene identifizieren?
Angststörungen gehören im Kindes- und Jugendalter zu den häufigsten psychischen Störungen. Sie führen zu mittel- und langfristigen psychosozialen individuellen und gesellschaftlichen Beeinträchtigungen und Belastungen, sind entwicklungspsychopathologisch verbunden mit Defiziten in der Emotionsregulation, zeigen eine hohe Komorbidität mit anderen psychischen Störungen wie insbesondere mit depressiven Störungen und weisen zudem eine hohe Rezidiv- und Persistenzneigung sowie eine niedrige Remissionswahrscheinlichkeit auf. Auf dieser Grundlage kommt der Prävention von Angststörungen bei Kindern und Jugendlichen eine besondere Bedeutung zu. Aufgrund eines konstatierten Forschungsdefizits im Zusammenhang mit universeller Angstprävention im Kindes- und Jugendalter ist im Kontext dieser Dissertation das Trainingsprogramm „Super Skills for Life“ von Essau & Ollendick evaluiert worden. Dabei ging es insbesondere um die Überprüfung eines Treatment-Effektes. Das „Super Skills for Life“-Programm ist ein CBT-geführtes Modell, das neben Exposition auch Methoden der Entspannungstherapie und des sozialen Kompetenztrainings impliziert. Als Resilienzaufbauprogramm zeichnet es sich besonders durch die Anwendung der Videofeedbackmethode aus. Im Kontext der schulbasierten Evaluation wurde eine zweifaktorielle Varianzanalyse mit Messwiederholung (Follow-Up-Messung nach sechs Monaten) unter Einbezug von Kovariaten (Bildung, Klassenstufe und Familienstand) und zusätzlich unter Berücksichtigung von Post hoc-Tests (Geschlecht) durchgeführt. Innerhalb der Stichprobe von Grundschulkindern nahmen an der Interventionsgruppe n=77 und an der Kontrollgruppe n=87 Probanden teil. Im Ergebnis konnten in der Zusammenfassung im Wesentlichen keine ausreichenden signifikanten Effekte des Programms hervorgebracht werden, somit konnte kein Treatment-Effekt belegt werden. Abschließend für diese Dissertation wurden Limitationen dieser empirischen Untersuchung wie bspw. die fehlende Randomisierung, der geringe Stichprobenumfang und der einschränkende Regionalitätsbezug diskutiert.
The food and land use system is one of the most important global economic sectors. At the same time, today's resource-intensive agricultural practices and the profit orientation in the food value chain lead to a loss of biological diversity and ecosystem services, high emissions, and social inequality - so-called negative externalities. From a scientific perspective, there is a broad consensus on the need to transform the current food system. This paper investigates the suitability of True Cost Accounting (TCA) as an approach to inte-grating positive and negative externalities into business decisions in the food and land use system, focusing on the retail sector due to its high market power and resulting influence on externalities along the entire food value chain. For this purpose, a qualitative study was con-ducted with sustainability managers of leading European food retail companies in terms of their annual turnover, sustainable finance experts, and political actors related to environmental and social policy. A sample of N=11 participants was interviewed about the emergence and meas-urement of externalities along the food value chain, the current and future relevance of knowing about externalities for food retail companies, and the market and policy framework necessary for the application of TCA. The data collected was evaluated using the method of qualitative content analysis according to Mayring. Findings show that TCA is a suitable method for capturing positive and negative external ef-fects along the food value chain and thus also for meeting the growing social, political, and financial demands for its sustainable orientation. At the same time, there are still some chal-lenges in the application of TCA, both from a theoretical and a practical point of view. The main challenges at present are the lack of a standardised methodology, data availability, and key performance indicators. Due to the focus on prices, margins and competitors, food retail groups, in particular, emphasise the risk of revenue and profit losses as well as customer churn when applying TCA. Hence, the introduction of TCA in the food and land use system requires the development of measures that are socially acceptable, backed by legal frameworks and promote the scientific development of the methodology. This offers the opportunity to create a level playing field, apply the polluter-pays principle to the entire value chain and support science in developing appropriate indicators as well as a TCA database. Food retail companies can benefit from addressing TCA at an early stage by analysing their value chain to initiate change processes early, identify risk raw materials and products, reduce negative externalities through targeted measures, sensitise customers to the issue and thus differentiate themselves from competitors.
Mit der Digitalisierung geht eine Entgrenzung der Öffentlichkeit einher. Medientechnologien stellen nicht nur Möglichkeitsräume bereit, in denen Konflikte verhandelt werden. Sie transformieren auch den politischen Diskurs. Vor allem »die sozialen Medien« werden oft als Bedrohung einer konstruktiven Debattenkultur betrachtet. Die Beiträger*innen treten einen Schritt zurück und fragen aus sozial-, kulturwissenschaftlicher und philosophischer Perspektive, wie Öffentlichkeiten hergestellt und transformiert werden. Sie erörtern theoretische sowie empirische Perspektiven und analysieren normative Fragestellungen, die angesichts globaler Dynamiken und neuer Formen von Kulturkonflikten an Bedeutung gewinnen.
This study examines the perspective of German venture capitalists on the success factors of digital startups and follows an explorative three-dimensional research approach that integrates the micro perspective on the entrepreneurial personality, the macro perspective on the entrepreneurial context, and the meso perspective on the business model. Thus, the study operates in a very young field of entrepreneurship research.
One of the purposes of this research project is to work out the significance of particular characteristics at each research level for the economic success of a digital start-up from the perspective of German venture capitalists. Furthermore, the study sheds light on the view of this group of experts on the relevance of an entire group of characteristics.
To answer the central research questions, qualitative research methods and a mixed-methods approach are pursued, with quantitative and qualitative primary data being collected by means of theory-driven semi-structured expert interviews. As a result, a total of four articles have been produced: three articles that focus on presenting the results of qualitative research from only one of the three aforementioned research perspectives each, and a fourth article that combines methods from qualitative and quantitative research and derives an integrated, evidence-based working model of the economic success of digital startups from the perspective of German venture capital (VC) investors.
Stretching is primarily used to improve flexibility, decrease stiffness of the muscle- tendon unit or reduce risk of injury. However, previous animal studies from 1970 to 1990 showed significant hypertrophy effects in skeletal muscle in response to chronic stretching intervention with stretching durations of 30 minutes to 24 hours per day. However, no study in humans was performed using comparatively long stretching durations of more than 30 minutes per day with a daily frequency. The present cumulative dissertation includes six studies aiming to investigate the effects of long-lasting static stretching training on maximum strength capacity, hypertrophy and flexibility in the skeletal muscle. Before starting own experimental studies, a meta-analysis of available animal research was conducted to analyze the potential of long-lasting stretching interventions on muscle mass and maximum strength. To induce long-lasting stretching on the plantar flexors and to improve standardization of the stretch training by quantifying the angle in the ankle joint while stretching, a calf muscle stretching orthosis was developed. In the following experimental studies, the orthosis was used to induce daily long- lasting static stretching stimuli with different stretching durations and intensities in the plantar flexors to assess different morphological and functional parameters. For this, a total of 311 participants were included in the studies and, dependent on the investigation, the effects of daily stretching for 10-120 minutes for six weeks were analyzed. Therefore, effects on maximal isometric and dynamic strength as well as flexibility of the plantar flexors were investigated with extended and flexed knee joint. The investigation of morphological parameters of the calf muscle was performed by determining the muscle thickness and the pennation angle by using sonographic imaging and the muscle cross-sectional area by using a 3 Tesla magnetic resonance imaging measurement. In animals, the included systematic review with meta-analysis revealed increases in muscle mass with large effect size (d = 8.51, p < 0.001), muscle cross-sectional area (d = 7.91, p < 0.001), fiber cross-sectional area (d = 5.81, p < 0.001), fiber length (d = 7.86, p < 0.001) and
fiber number (d = 4.62, p < 0.001). The thereafter performed experimental studies from our laboratory showed a range of trivial to large increases in maximum strength of 4.84% to 22.9% with d = 0.2 to 1.17 and ROM of 6.07% to 27.3% with d = 0.16 to 0.87 dependent on stretching time, training level and testing procedure. Furthermore, significant moderate to large magnitude hypertrophy effects of 7.29 to 15.3% with d = 0.53 to 0.84 in muscle thickness and trivial to small increases of 5.68% and 8.82% (d = 0.16 to 0.3) in muscle crosssectional area were demonstrated.
The results are discussed based on physiological parameters from animal studies and in the front of knowledge in resistance training, suggesting mechanical tension to be one important factor to induce muscle hypertrophy and maximal strength increases. Further explanatory approaches such as hypoxia and changes in the muscle tendon unit are debated in the following. Since these studies are the first investigations on long-lasting stretch-mediated hypertrophy in humans, further research is needed to explore the underlying mechanisms and confirm the results in different populations to enhance the practical applicability for example in clinical populations when, e.g. counteracting muscular imbalances or sarcopenia in the elderly.
Ziel dieser Arbeit ist es, empirisch gesicherte Aussagen über die schriftliche Textplanung von Mittelstufenschüler*innen beim schriftlichen Argumentieren treffen zu können. Somit wird hier das argumentative Schreiben und Planen von schriftlichen Texten von 7. Klässler*innen betrachtet und untersucht. Die Daten resultieren aus dem Forschungsprojekt !!„Fach-an- Sprache-an-Fach“!!. Im Rahmen dieses Projektes nahmen Schüler*innen der 7. Klassen von insgesamt 7 Schulen in Niedersachsen und Hamburg an einer 15-wöchigen Intervention teil, um u.a. ihre schriftlichen persuasiven Argumentationsfähigkeiten zu verbessern. In diesem Zusammenhang arbeiteten die Schüler*innen mit einem selbst entwickelten Planungstool, um argumentative Texte zu verschiedenen Aufgabenstellungen zu verfassen. In der Arbeit werden von 33 Fokusfällen die bearbeiteten Planungstools sowie die dazugehörigen argumentativen Texte in einem mehrstufigen qualitativen und quantitativen Analyseverfahren betrachtet. In dem Analyseverfahren wird u.a. mit der formal, strukturierenden qualitativen Inhaltsanalyse und mit einem gattungsspezifischen Textanalyseverfahren gearbeitet.
Climate change presents a major sustainability challenge to coastal social-ecological systems (SES). The integration of climate change adaptation into processes or structures for coastal governance, however, has been described as challenging. Resilience presents a suitable concept to approach this problem, as it facilitates bridging between the natural and social sciences, as well as between science and policy in an inter- and trans-disciplinary approach. The Intergovernmental Panel on Climate Change also makes use of the concept of resilience and confirms that recent literature increasingly suggests that transformative changes in SES are required to enhance their resilience to climate change. Yet, knowledge gaps still exist on how to enable effective coastal governance to enhance the climate resilience of coastal SES. To address this problem, the importance of actionable knowledge is growing in climate change adaptation, environmental governance, and broader sustainability research. Actionable knowledge refers to knowledge that contributes to solving societal problems and points to actions and processes of change. One way of generating actionable knowledge is the co-production of knowledge with societal stakeholders. Yet, knowledge gaps exist in what methods and approaches may contribute to generating actionable knowledge and what obstacles to knowledge co-production exist especially for early-career researchers (ECRs).
This dissertation contributes to research on generating actionable knowledge for coastal governance to enhance the resilience of coastal SES to climate change. It does this by providing theoretical, methodological and empirical insights on three research questions (RQs), laid out in Chapter I. These are: 1) what is a more actionable concept for applying the concept of resilience in coastal governance?; 2) what methods and approaches are suitable to generate actionable knowledge for coastal governance?; and 3) what obstacles to knowledge co-production exist for ECRs and how can they be overcome? The RQs are addressed in five publications, each presenting one chapter of this dissertation. For answering RQ1, Chapter II applies a research synthesis to bring together common themes and challenges documented in resilience, climate change and environmental governance literature. For answering RQ2, in Chapter III-V different methods and approaches for generating actionable knowledge are proposed and tested using a case-study in the SES of Algoa Bay, South Africa. These include i) the analysis of stakeholder agency as an indicator of the ability of stakeholders to act in governance processes; ii) the application of a stakeholder analysis to gain an improved understanding of the current degree of knowledge exchange for climate change adaptation; and iii) the combination of a capital approach framework, and fuzzy cognitive mapping, which shed light on the governance performance for climate change adaptation and on leverage points that can enhance climate resilience. Finally, for answering RQ3, Chapter VI provides a perspective on the obstacles that especially ECRs face, and actions that are needed to create the conditions under which knowledge co-production processes can be successful. This is done by applying a multi-method approach combining an online survey and workshop targeted at ECRs in the marine sciences.
Key findings suggest that system and transformative knowledge are particularly important when applying the concept of resilience in coastal governance to generate actionable knowledge. The different methods and approaches that are proposed and tested contribute to generating both system and transformative knowledge. Firstly, they provide an overview of the capacities of different stakeholders to act, shed light on current collaboration and knowledge exchange, and enable the identification of different governance processes for coastal governance and climate change adaptation (system knowledge). Secondly, results have implications for how to improve knowledge exchange and identify leverage points that can enhance overall governance performance, thus providing recommendations on actions and processes that can enhance climate resilience in the case-study area (transformative knowledge). It is also highlighted how knowledge co-production can contribute to generating system and transformative knowledge together with stakeholders, and what actions are needed to build the capacities to translate knowledge into action. Additionally, the findings of this dissertation put forward actions that are needed at different organisational levels of the academic system to facilitate knowledge co-production processes with stakeholders involved in coastal governance.
The results of this dissertation have implications for stakeholders and decision-making in the case-study area, as well as for environmental governance, climate change adaptation and broader sustainability research. Implications for stakeholders include recommendations for implementing formal commitments to share climate information across levels and sectors, establishing the role of information providers in the municipality, and reinforcing human capital within the local municipality in Algoa Bay. It also requires more support from the provincial government, such as addressing funding issues, offering training focusing on stakeholders with lower agency and capacities, and improving the overall availability and accessibility of climate information, as well as the priority given to climate change in the Integrated Development Plan. Findings also suggest the need for a more integrated approach to climate change adaptation in coastal planning and management frameworks. It also suggests that the conservation of environmental assets presents an important bottleneck for resilience management and needs to be further prioritised within decision-making. Implications for research include the applicability of methods beyond the context of this dissertation; a more actionable concept for approaching resilience in (coastal) governance systems that can be applied for achieving broader sustainability goals; and a more critical reflection on how transformative research is conducted, and what academic foundation is needed so that it can fulfil its societal goal.
Future research may include a combination of the methods applied in this dissertation; qualitative applications of the stakeholder network analysis; and an application of the proposed approach to other case-studies using real-world laboratories. Overall, this dissertation provides theoretical, methodological, and empirical implications and insights into pressing SES problems. It also contributes to advancing the field of transformative research for more societally relevant outcomes in face of climate change and broader sustainability challenges
This book is the result of committed individuals coming together around a shared interest: community-supported (CS) entrepreneurial narratives – existing ones and those which want to be told from now onwards.
While each chapter, i.e. author collective tells different stories, what they have in common is the finding that so-called “alternatives” or solutions do not necessarily need to be invented but to be seen and experienced.
This book is an invitation to learn from practice – to learn from the emerging future – and imagine and feel into new narratives. May this book be useful to both: those of you who first get in touch with the concept of community-supported economy (CSX); and the entrepreneurs among you who want to take ‘economy’ literally. ‘Oikonomia’ originally means household management. Therefore, economy is actually an act of caretaking. Let us do take care of what lies in our hands, e.g. the transformation of economic systems, hence the way we relate to each other.
This chapter is structured into two sub chapters, studied and written by two research-groups, titled: (1) Tales of Challenge (2) Tales of Success. The chapter concludes with a common summary of all findings. In both sub chapters the same approach was applied. Semi-structured interviews were conducted and analyzed according to Mayring (2000) to collect perspectives from practice and research. Some interviews were conducted by each research group separately and some together. Also, a method inspired by Photovoice was used to gain a deeper understanding of specific challenges and drivers in the respective projects. Inspired by the Photovoice method (Wang and Burris, 1997), interviewees were asked to share a picture and short description answering a question posed by the researchers to gain a deeper understanding of specific challenges and drivers in the respective projects. Our shared main character, Joice, will keep popping up during this chapter to share her experience.
How can CSX be applied to different industries in the cultural field? The following three subchapters discuss general problems of the cultural sector (the past), current practice examples of CSX (the present) and visions about new possibilities in this sector (the future), envisioning the progress of the sector through the implementation of CSX as an alternative economic model. This chapter explores this by using creative writing styles. While all the characters are fictional, the characterizations and the outline of the story draw from our scientific research. Our main protagonist is Quinn who studies Cultural Studies, is a volunteer in several cultural initiatives and works at a podcast studio. Planning to be done
with the Master's program in about a year, questions about possibilities of a future employment in the cultural sector are becoming more present for Quinn and their fellow students.
The concept of CSX allows us to envision how the idea of collaborative problem-solving and non-competitive change-making could be brought to life. The participation at the CSX meets Lüneburg event fueled the vision to find out more about how the CSX framework could be transferable and applicable to the consulting industry and sustainability consulting in particular. The encouraging kick-off led to the research question of: “Can sustainability consulting better fulfill its purpose in a CSX context as opposed to the conventional way?” The aims connected to this research question were to determine the status quo of community-supported approaches in sustainability consulting and to increase the visibility of existing organisations. Goals were also to find out how community-based work can lead to fruitful results in sustainability consulting. This was ought to be done by assessing the embodiment of CSX aspects in existing examples from practice.
In this chapter, we aim to present how shame, vulnerability, self-care and community care interrelate to one another and how they help build the necessary foundation for mutual care in interdependent communities, and thus for community-supported projects (CSX). Furthermore, we argue that by looking at the role of shame and vulnerability within our personal life, as we simultaneously learn to take care of ourselves, we then lay a solid foundation for learning how to support others. We then suggest that at the birthplace between healthy sustainable self-care and community care, people and communities are able to shift from a hyper-individualized lifestyle (isolation, disconnection) to a more collective community-centered approach (belonging and connection) that finally creates the perfect recipe for the creation of CSX Projects and a more inclusive and kinder economy for all.
The computational analysis and the optimization of transport and mixing processes in fluid flows are of ongoing scientific interest. Transfer operator methods are powerful tools for the study of these processes in dynamical systems. The focus in this context has been mostly on closed dynamical systems and the main applications have been geophysical flows.
In this thesis, we consider transport and mixing in closed flow systems and in open flow systems that mimic technical mixing devices. Via transfer operator methods, we study the coherent behavior in closed example systems including a turbulent Rayleigh-Bénard convection flow and consider the finite-time mixing of two fluids. We extend the transfer operator framework to specific open flows. In particular, we study time-periodic open flow systems with constant inflow and outflow of fluid particles and consider several example systems. In this case, the transfer operator is represented by a transition matrix of a time-homogeneous absorbing Markov chain restricted to finite transient states. The chaotic saddle and its stable and unstable manifolds organize the transport processes in open systems. We extract these structures directly from leading eigenvectors of the transition matrix. For a constant source of two fluids in different colors, the mass distribution in the mixer and its outlet region converges to an invariant mixing pattern. In parameter studies, we quantify the degree of mixing of the resulting patterns by several mixing measures. More recently, network-based methods that construct graphs on trajectories of fluid particles have been developed to study coherent behavior in fluid flow. We use a method based on diffusion maps to extract organizing structures in open example systems directly from trajectories of fluid particles and extend this method to describe the mixing of two types of fluids.
Given the complex, dynamic, and urgent problems that sustainability science addresses, research approaches are required that not only improve the understanding of sustainability challenges, but also to support action for sustainable development. In this context, transdisciplinary research has established as an approach that aims not only to generate new knowledge, but also to promote the societal relevance and application of research findings through direct collaboration of scientists and societal stakeholders from different fields in integrative research processes. Despite its increasing prevalence in the field, there remains a gap between theoretical ideal-typical models of transdisciplinary research and its actual application within sustainability science. While scholars generally agree that transdisciplinary research is societally effective, there is scattered and partly conflicting evidence on which aspects of transdisciplinary research foster societal impact. Moreover, the extent to which transdisciplinary research contributes to scientific progress is largely unexplored.
This thesis aims to contribute to a better understanding of the actual implementation of transdisciplinary research in sustainability science. Following three aims, this work likes to (1.) contribute to the measurability of transdisciplinary research processes as well as their societal and academic outputs and impacts, to (2.) demarcate transdisciplinary research from other modes of research in sustainability science and to (3.) identify and examine the determinants that shape the contribution of transdisciplinary research to societal action for sustainable development and to scientific knowledge production.
To serve these aims a mixed methods approach is applied that combines strong quantitative elements with in-depth qualitative analyses that integrate the perspectives of practitioners. This thesis provides a broad set of indicators to describe and assess transdisciplinary research that translate theoretical concepts form transdisciplinarity theory into observable variables. The indicators offer a holistic perspective on transdisciplinary research by representing research mode characteristics, societal as well as scientific outcomes of research projects and their specific context.
To theoretically demarcate transdisciplinary research from other forms of research, a narrative literature review first elaborates the differences between ‘normal science’, political use of scientific knowledge and transdisciplinarity in their underlying logics of problem definition, knowledge production and research utilization. Subsequently, these concepts were compared with perspectives and expectations of practitioners in the forest sector on integrative research settings, showing that practitioner perspectives align the most with conceptualizations of political use of scientific knowledge.
Moreover, a cluster analysis of data from 59 research projects identified five research modes that empirically demarcate ideal-typical transdisciplinary research from other research modes within sustainability science: (1) purely academic research, (2.) practice consultation, (3.) selective practitioner involvement, (4.) ideal-typical transdisciplinary research and (5.) practice-oriented research. Based on this finding, transdisciplinary research can be characterized as an intensive, but balanced involvement of practitioners. It incorporates not only the needs and goals of the practitioners but also their norms and values. Ideal-typical transdisciplinary research goes beyond mere consultatory research approaches and must be distinguished from what is conceptualized as applied research.
Regression analysis of 81 research projects and statistical group comparisons of the five research mode clusters show that societal and academic outputs and impacts vary with specific project characteristics and combinations of project characteristics defined as research modes. The findings indicate that more interactive research modes reach more societal impacts. In particular, the involvement of practitioners in early project phases and the targeted dissemination of the research results positively affect societal impacts. This finding also aligns with practitioner expectations on integrative research and research utilization, provided by qualitative analysis. Moreover, the quantitative results show that scientific outputs and impacts decrease with the intensity of interactions, indicating a trade-off between societal and scientific outcomes and impacts.
Overall, the empirical results of this thesis support the claimed effectiveness of transdisciplinary research in providing societally relevant, applicable knowledge and encourage further funding of transdisciplinary research by funding agencies. The relationships discovered in this study between research mode characteristics and societal as well as academic outputs and impacts can help researchers design and reflect on their research and can inform funding agencies in the design of project calls and research programs. However, the observed lower academic outputs and impacts of more integrative research modes raise the question of how to further strengthen the systematic documentation and accessibility of the results of transdisciplinary sustainability research. Additionally, the observed trade-off between societal and academic impacts of transdisciplinary research highlights the need for strategies to mediate between the dual aim of transdisciplinary research to contribute to societal problem solving and scientific knowledge production.
Keywords: transdisciplinarity, sustainability science, transdisciplinary research, societal impact, scientific impact, research mode, research evaluation
In past digital health interventions, an issue has been that participants drop out over time which is referred to as the "law of attrition" (Eysenbach, 2005). Based on this, the study proposes that though initially, participants respond to the intervention, there is a hypothesized second diminishing effect of an intervention. However, the study suggests that on top, there is a third effect. Independent of the individual notification or nudge, people could build the knowledge, skills and practice needed to independently engage in the behavior themselves (schraefel and Hekler, 2020). Using behavioral theory and inspired by prior animal computational models of behavior, the thesis proposes a dynamical computational model to allow for a separation of intervention and internalization. It is targeted towards the specific case of the HeartSteps intervention that could not explain a diminishing immediate effect of the intervention, second hypothesized effect, while a person’s overall steps remained constant, third effect (Klasnja et al., 2019). The study incorporates a habituation mechanism from learning theory that can account for the immediate diminishing effect. At the same time, a reinforcement mechanism allows participants to internalize the message and engage in behavior independently. The simulation shows the importance of a participant’s responsiveness to the intervention and a sufficient recovery period after each notification. To estimate the model, the study uses data from the HeartSteps intervention (Klasnja et al., 2019; Liao et al., 2020), a just-in-time adaptive intervention that sent two to five walking suggestions per day. The study runs a Bayesian estimation with Stan in R. Additional validation tests are needed to estimate the accuracy of the model for different individuals. It could however serve as a template for future just-intime adaptive interventions due to its generic structure. In addition, this model is of high practical relevance as its derived dynamics can be used to improve future walking suggestions and ultimately optimize notification-based digital health interventions.
In dieser Masterarbeit wird die Online-Befragung von Berufsschullehrern in Hamburg als explorative Methode gewählt, um Einblicke in die aktuelle Situation an Berufsschulen zur Förderung von "Kompetenzen in der digitalen Welt" bei Auszubildenden zu Kaufleuten für Büromanagement zu erhalten. Das Hauptziel ist es, die vorhandenen Chancen und Herausforderungen bei der Förderung genannter Kompetenzen bei den Schülern zu identifizieren und zu analysieren. Diese Arbeit interessiert sich außerdem für einen umfassenden Einblick in die Praktiken, Herausforderungen und Bedarfe an der Berufsschule im Zusammenhang mit der Förderung von digitalen Kompetenzen. Dafür werden verschiedene Theorien aus der Medienpädagogik zusammengefasst und deren Relevanz für die gegenwärtige Berufliche Bildung herausgestellt. Es wird sich mit verschiedenen Einflussfaktoren der digitalen Welt auf den (Berufs-)Schulunterricht auseinandergesetzt. Des Weiteren wird die Entstehungshistorie der Kultusministerkonferenz (KMK)-Strategie "Bildung in der digitalen Welt" nachvollzogen. Damit soll die theoretische Basis zur Beantwortung der Frage gelegt werden, inwiefern "Kompetenzen in der digitalen Welt" in der Beruflichen Bildung in Hamburg gefördert werden. Diese grundsätzliche Fragestellung wird anhand von empirischen Datenmaterial hinsichtlich der Förderungsabsichten beantwortet. Gerade vor dem Hintergrund der technologischen Entwicklungen der letzten Jahrzehnte mit "Kompetenzen in der digitalen Welt" als entscheidenden Schlüsselqualifikationen möchte die vorliegende Arbeit durch die erzielten empirischen Ergebnisse zur aktuellen Diskussion über die Förderung digitaler Kompetenzen bei Auszubildenden beitragen und bietet Handlungsempfehlungen für die Praxis. Indem mit dieser Arbeit das Verständnis für die bestehenden Chancen und Herausforderungen erweitert wird, können bildungspolitische Maßnahmen entwickelt werden, um den Anforderungen der digitalen (Arbeits-)Welt gerecht zu werden.
The research described in this dissertation focuses on developing a process to remove oligomers and suppress their formation by intercepting the aging procedure's precursors using adsorbents when biodiesel and its blends are used as fuel. There has been the search for various energy sources due to the increasing awareness of the depletion of fossil fuel resources, environmental issues, and more urgently is the need to mitigate climate change. Biodiesel has become more attractive in recent times (Daming et al. 2012, Abdullah et al., 2007) as an alternative fuel. Biodiesel, a methyl ester of vegetable oil, is a renewable, low environmental impact, green alternative fuel for diesel engines (EU Regulation, 2012, Ghosh and Dutta, 2012). In addition to its renewable status, biodiesel, compared to fossil fuel, has advantages such as its biodegradability, reduced exhaust emissions, higher cetane number, lubricity, and safer distribution and storage due to its higher flash point (Pereira et al. 2015, Monyem and Van Gerpen, 2001). Biodiesel fuel is chemically fatty acid methyl ester (FAME) derived from different plant oils. It varies slightly in molecular structures due to the degree of unsaturation of the fatty acids in the different sources compared to conventional diesel fuel (Pereira et al. 2015, 2013, Sharma and Singh, 2009). Biodiesel fuels contain significant amounts of esters of oleic, linoleic, or linolenic acids, which influence their oxidative stability. A small percentage of more highly unsaturated fatty compounds have a disproportionately strong effect in reducing oxidation stability and promoting oligomers formation. The oxidation products of the biodiesel in the engine sump influence the degradation of the lubrication oil.
Dass die Gleichberechtigung von Menschen ebenso wie die Würde eines jeden Menschen etwas Gutes ist - dem werden in einer demokratischen und pluralistischen Gesellschaft die meisten zustimmen können. In der praktischen Umsetzung dieser abstrakten Aussage jedoch zeigen sich Probleme. In dieser Arbeit geht es um die Herausforderung, wie die gesellschaftlich reale Vielfalt und die Ideale der Menschenrechte und der Gleichheit sprachlich umgesetzt werden können bzw. wie es gelingt, angemessene Begriffe für umstrittene Sachverhalte zu finden. Diskriminierungssensible Sprache im Sinne dieser Arbeit ist eine Sprache, die sich bemüht, Minderheiten, nichtprivilegierte Personen und Standpunkte zu erkennen, zu achten und angemessen zu berücksichtigen. Sie könnte auch als gerechte Sprache, Sprache der Vielfalt und Gleichheit, menschenfreundliches oder "anerkennungsorientiertes Sprechen" bezeichnet werden. Hinsichtlich der Bemühungen um sprachliche Umsetzung sozialer Gerechtigkeit ist in unserer Gesellschaft ein oft heftig geführter Streit entbrannt. Auf der einen Seite wollen Gruppen, die bisher wenig Gehör fanden, Ungleichheiten z.B. aufgrund der geschlechtlichen oder ethnischen Zuschreibungen nicht mehr akzeptieren und verlangen von ihren Mitmenschen, dass dies u.a. in der Art, wie über und mit ihnen gesprochen wird, zum Ausdruck kommen möge. Auf der anderen Seite möchten viele die alten sprachlichen Regeln und Gewohnheiten beibehalten. Sie empfinden neue Wortschöpfungen als überflüssig oder falsch
Originalität, Flexibilität und Intensität zählen zu den entscheidenden Eigenschaften der zeitgenössischen Mittelschicht. Simon Roloff erfährt dies am eigenen Leib und erkundet Schauplätze der Einübung eines Habitus: Er wird zu seinem Traumjob gecoacht, improvisiert mit Managern und geht für die Ausschöpfung seiner inneren Ressourcen barfuß über glühende Kohlen. Durch einen innovativen Mix aus teilnehmenden Beobachtungen, autoethnografischen Analysen und lyrischen Montagen führt er seine Erlebnisse aus dem Fundus der Selbstverbesserung zu einem kritischen Paradigma der Gegenwart zusammen – und erzählt dabei eine Mikrogeschichte der Implementierung von klassenbasierten Normen am Subjekt.
Depressive disorders are highly prevalent mental disorders associated with an enormous individual and societal burden. The efficacy of both; treatment and prevention of depression have been meta-analytically demonstrated. Over the past two decades, an increasing number of internet-based interventions for depression has been developed and their efficacy was also metaanalytically shown. However, the uptake of such interventions – despite all the suggested advantages of internet-based interventions – is still rather low. The stigma still associated with “depression” may be one major barrier also to internet-based interventions. To overcome this barrier and potentially increase uptake, the paradigm of indirect interventions has been proposed recently. Indirect interventions primarily address common mental health problems, which are presumed to be less stigmatizing, and are suggested to reduce depressive symptoms indirectly. Targeting common mental health problems that are transdiagnostic risk factors for depression and other mental disorders – such as stress or repetitive negative thinking – seems especially promising.
This dissertation evaluated the efficacy of three different internet-based interventions that can be regarded as indirect interventions to reduce depression since they primarily targeted risk factors for depression. For this purpose three registered randomized controlled trials were conducted. In addition to assessing the efficacy of the interventions regarding the primary outcomes, the efficacy to reduce depression and further secondary outcomes was studied. In Study I (N = 200) the efficacy of an internet-based stress management intervention (iSMI), which was adapted and tailored to career starting teachers, was compared to a waitlist control group (WLG). The participants of the intervention group (IG) reported significant reductions on the primary outcome perceived stress at post-intervention (T2), ΔWLG-IG = 3.5, d = 0.52, 95% CI [0.24, 0.80], and threemonth follow-up (3-MFU), d = 0.49, 95% CI [0.21, 0.77]. Furthermore, it was shown that the intervention indirectly also reduced depression at T2, d = 0.66, 95% CI [0.38, 0.94], and 3-MFU, d = 0.47, 95% CI [0.19, 0.75], nad produced significant clinically meaningful reductions of depression with a number needed to treat (NNT) of 3.9 at T2. The effects were sustained at an extended 6-MFU. Besides efficacy, the feasibility to complement the iSMI with a newly developnedte rinet-based classroom management training was shown. Moreover, mediation analyses corroborated the role of problem- and emotion-focused coping skills in the intervention’s effect on stress and the indirect effect of the intervention on depression through stress.
Study II (N = 262) demonstrated the efficacy of an internet- and app-based gratitude intervention on the reduction of primary assessed repetitive negative thoughts at T2, ΔWLG-IG = 6.6, d = 0.61, 95% CI [0.36, 0.86], and 3-MFU, d = 0.75, 95% CI [0.50, 1.00], as compared to a WLG. The participants of the IG also reported significantly reduced depressive symptoms at T2, d = 0.38, 95% CI [0.13, 0.62], and 3-MFU, d = 0.40, 95% CI [0.15, 0.64], with significant clinically meaningful effects with an NNT of 4.3 at T2. The effects were sustained at an extended 6-MFU. Besides efficacy, mediation analyses showed that repetitive negative thinking mediated the gratitude intervention’s effect on depression.
Finally, Study III N( = 351) showed that an interneta-sbed intervention, tackling worries at the beginning of the COVID-19 pandemic, was effective as compared to an active mental health advice group. At T2, two weeks after randomization, the IG reported significantly reduecveedl sl on the primary outcome worry as compared to controΔlsW, LG-IG = 5.0, d = 0.38, 95% CI [0.17, 0.59]. Participants of the IG also reported significantly reduced levels of depression at T2, d = 0.47, 95% CI [0.26, 0.68], with significant clinically meaningful reductions with an NNT of 3.6. The extended follow-ups in the IG indicated that the improvements from baseline were sustained until the 2-MFU and the 6-MFU. In a mediation analysis, worry was shown to mediate the intervention’s effect on depression.
Across all three studies a reliable deterioration of depression was occasionally observed ranging from 3% to 5% in the IGs and from 5% to 12% in the control groups at T2. In summary, the studies in this dissertation demonstrated the efficacy of various indirect interventions focusing on rather common psychological problems to indirectly reduce depressive symptoms. The extent to which depression severity could be reduced is comparable to reductions found within participants with comparable baseline depression severity, in internetbased interventions directly addressing depressive symptoms. Indirect interventions are suggested to increase the uptake of interventions that reduce depressive symptoms, since they might be perceived as less stigmatizing and might broaden the range of interventions to choose from. Future research needs to compare indirect interventions for depression with direct interventions in head-to-head studies regarding uptake, efficacy and potential harmful effects. The indirect interventions examined in this dissertation could then complement the existing range of care for depression and thereby contribute to a reduction of the treatment gap and the burden of disease associated with depression.
Globalization has increased the speed, volume and spatial scale of global flows of people, information, finance, goods and services. Economic globalization is closely linked to the globalization of environmental problems, with the underlying causes and directly visible effects of environmental problems becoming increasingly geographically dispersed. For example, the products consumed in one place can have negative environmental effects in distal places of production. This poses challenges to territorially-based governance systems. Governments do not have legal authority to regulate environmental problems in other jurisdictions, even if their own policies or actions of domestic companies contribute to these problems. Likewise, companies face challenges with overseeing and governing the environmental effects that occur along their supply chains. Nevertheless, state and non-state actors increasingly aim to govern environmental problems outside their jurisdictional and organizational boundaries that arise from long-distance interactions between social-ecological systems – so-called telecoupled systems.
This doctoral dissertation analyses the environmental governance of long-distance social-ecological interactions in telecoupled systems in two issue domains: global commodity chains and infrastructure projects as part of China’s Belt and Road Initiative (BRI). Although both domains involve different governance actors, institutions and processes, they both concern the question of how the involved actors develop governance structures and institutional responses to telecoupling. This dissertation aims to contribute to a deeper understanding of how to govern environmental problems that are associated with global flows. Since many multilateral environmental governance initiatives have not yet produced the desired solutions to global problems, particular attention is directed at unilateral state-led governance approaches. This dissertation addresses the questions of (1) how to achieve a spatial fit between the scale of telecoupled systems and the scale of governance institutions, (2) how governance actors exercise agency in governing telecoupled systems, and (3) how state actors can govern the domestic and foreign environmental effects of telecoupled flows. This dissertation draws upon, and contributes to, two fields of research: research on telecoupling and research on global environmental governance.
The results show that creating a spatial fit in the governance of global commodity flows is challenging because boundary and resolution mismatches can emerge. Boundary mismatches denote situations where social-ecological problems transcend established jurisdictional boundaries, whereas resolution mismatches refer to governance institutions that have too coarse a spatial resolution to allow them to address the specific aspects of social-ecological problems effectively. No single governance institution is likely to avoid all mismatches, which highlights the need to align multiple governance approaches to effectively govern telecoupled systems.
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Telecoupled flows are often governed at places where they originate and places where they arrive for processing, final consumption, or investment. If governance in the jurisdiction experiencing the environmental issue is weak, external governance actors can aim to fill this governance gap by introducing due diligence legislation and by promoting sustainability standards in international (trade) relations. State actors often rely on the actions of non-state actors to govern beyond jurisdictional borders. Despite efforts to govern environmental outcomes in distant jurisdictions, it is important to recognize the agency of governments that experience the direct environmental effects of telecoupling. They have great leverage to steer telecoupled systems towards sustainability through the formulation, implementation, monitoring and enforcement of stringent regulatory frameworks, in the context of both commodity supply chains and BRI projects.
The findings of this dissertation are relevant for scholars and policy makers interested in what can be termed external environmental governance, which refers to the governance structures and institutions to shape environmental outcomes outside the borders of a given jurisdiction. This dissertation sets
One of the key challenges of our era is to halt biodiversity loss and foster the sustainable use of nature. The Sustainable Development Goals (SDGs) recognize the importance of the inextricable link between social and ecological systems and human quality of life (QoL) and biodiversity. Therefore, understanding the feedback and interactions between biodiversity, nature’s contributions to people (NCP), and QoL plays a central role in advancing toward sustainability. In this context, the social-ecological systems (SES) approach has advanced on the subject, particularly in recent decades; however, much remains to be done to comprehensively understand these relationships and interactions, especially at local decision-making scales. In this thesis, through the lenses of the SES approach, I investigate connections between biodiversity, NCP, and QoL in a tropical dry forest (TDF) on the Western coast of Mexico. This place is one of the best-known Neotropical TDF and has been the focus of SES research in the past 20 years, making it an excellent case study for exploring these connections.
First, to approach the need for dialogue among different global and local scales and between global and local frameworks, the thesis identifies five key components of the SES dynamics-(1) ecological supply, (2) co-production of NCP, (3) management, (4) demand, and (5) benefits- and three local decision-making scales of analysis- individual plot, smallholder, and land tenure or governance units. A literature review was performed on the social-ecological indicators for the last 11 years in the Chamela-Cuixmala region to operationalize this framework. The representability of the framework shows that research has emphasized the components of NCP co-production (42% of indicators) and SES management (21%). By analyzing SES dynamics through this new framework, we can support the monitoring of NCP and potentially detect regime shifts or radical changes before they happen. The framework is simultaneously context-specific and operationable across global contexts, providing an opportunity to inform discussions on global sustainability from local contexts.
Second, this thesis uses social-ecological information to identify social-ecological systems units (SESU) spatially explicitly. A methodology was provided to spatially identify the components of social-ecological systems that environmental conditions and management practices have shaped at three previously stated relevant decision-making scales: plots owned by individuals, plot owners, and governance units. To do so, we identified and characterized: (1) ecological clusters (EC), (2) social-management clusters (SC), and (3) SESU in a TDF in western Mexico. Our findings suggested that decision-makers (ejidatarios, i.e., type of ownership (related to agrarian reform), that in most cases the land allocated is small-smallholders-) are bounded by the topographical characteristics and the public policies that determine communal (or private) governance and the number of resources available to them. The methodology can be applied to other contexts and nested decision-making scales. The spatial identification of these interdependencies is critical for landscape planning since it can contribute to reconciling productive activities and biodiversity conservation.
Finally, the thesis examines the self-perceived QoL across the different SESU, finding 48 QoL items, which were grouped into six categories: 1) social capital, 2) economic capital, 3) agency, 4) nature, 5) peasant non-work activities, and 6) government and services; and two additional dimensions referred to obstacles and enablers of QoL. We found that the more land cover transformation, the more enablers, and obstacles of QoL are identified; emphasis was put on economic capital to achieve QoL. As management is intensified and governance fosters individualism across SES, the higher the Current Welfare Index, and the lower the self-perceived material and non-material satisfaction. We discuss the need for governance structures promoting smallholders´ worldviews that move beyond utilitarianism and foster commons. The social-ecological systems approach employed throughout this dissertation contributed towards crosscutting insights; the testing of new frameworks and methodologies represent important steps towards unraveling the connections between biodiversity, NCP, and QoL and contributes to achieving sustainable scenarios such as the ones proposed by the SDGs.
This dissertation deals with the increasingly recognized role of incumbent firms in advancing sustainability-oriented industry transitions. Incumbent firms are understood as firms-in-industries, which are embedded in established market structures and thereby contrast new entrant firms. The purpose of this research is twofold. First, to provide empirical evidence of barriers to and success factors of incumbent-driven industry transitions. Second, to unify hitherto dispersed descriptions of transition-related firm behaviour in a new understanding of incumbent firms in industry transitions. To this end, theoretical concepts are discussed and extended on the basis of different empirical studies in the German meat industry. The meat industry serves as suitable research setting due to its diverse sustainability challenges, ranging from climate change and pollution to animal welfare and public health, as well as its current developments towards sustainable protein alternatives. The meat context also offers opportunities to delve into individual-level processes influencing transition-related behaviour. The main contribution of this dissertation is a Multi Embeddedness Framework (MEF) that details processes and outcomes of integrated incumbent firm behaviour, including passive, reactive and proactive behaviors. The framework acknowledges the diversity in incumbent firm behaviors within industries and firms and provides new insights into transition-related behaviors at firm and individual level. With regard to the latter, the potential of learning about and from innovative start-up firms as well as shared sensemaking processes are discussed. The contents of this dissertation provide valuable contributions to the transition literature as well as important management implications with regard to the stimulation and promotion of proactive behaviors
Aufbauend auf einem interdisziplinären Modell, das sowohl kognitionspsychologische als auch mathematikdidaktische Fähigkeiten beim Schätzen von visuell erfassbaren Größen (Längen, Flächeninhalte, Fassungsvermögen, Rauminhalte) beinhaltet, und einem Modell zur Systematisierung verschiedener Aufgabenmerkmale wurde im Rahmen dieses Dissertationsprojekts ein schriftlicher Schätztest entwickelt. Der Schätztest beinhaltet insgesamt 48 Items, deren Merkmale zwischen den Größen parallelisiert und gleich verteilt sind (12 Items pro Größe).
Die Daten des Tests werden genutzt, um verschiedene Arten der Ermittlung und Bewertung von Schätzgenauigkeit zu untersuchen, die Schätzgenauigkeit von Kindern der vierten, fünften und sechsten Klasse zu ermitteln und um den Zusammenhang der vier Größen zu beschreiben.
Die Untersuchung verschiedener klassischer Fehlerberechnungs- und Bewertungsarten zeigt wesentliche Unterschiede in Testleistung und Testgüte. Die Berechnung des logarithmischen Fehlers in Verbindung mit einem logarithmischen Scoring wird als ein alternatives Verfahren genutzt.
Die Analyse der Schätzergebnisse von 900 Kindern zeigt, dass sich die Schätzgenauigkeit von Kindern der vierten und sechsten sowie fünften und sechsten Klassen signifikant unterscheidet: Kinder aus höheren Jahrgängen schätzen genauer als Kinder aus niedrigeren Jahrgängen. Es konnte kein signifikanter Unterschied bei der Schätzgenauigkeit zwischen Kindern der vierten und fünften Klassen festgestellt werden. Darüber hinaus unterscheidet sich Schätzgenauigkeit signifikant zwischen den Größen: Längen werden am genauesten geschätzt, gefolgt von Fassungsvermögen, Flächeninhalten und Rauminhalten. Alle Größen korrelieren bezüglich der Schätzgenauigkeit moderat miteinander. Die Schätzgenauigkeit von Längen kann als Prädiktor für die Schätzgenauigkeit der anderen Größen herangezogen werden.
This research argues that the emergent driverless car, as a kind of autonomous vehicle, is a Foucault-ian ‘ethical apparatus’, working as an epistemic device to materially embody and enable discursive power by generating notions of ‘autonomy’ and ‘ethical decision-making’. The ethical implications of AI, algorithmic, and autonomous technologies are topics of current regulatory and academic concern. This concern relates to the lack of meaningful oversight of black boxes inside AI systems, liabilities for manufacturers, and inadequate frameworks to hold AI-based socio-technical systems to account.
One recent artefact, the driverless car, has taken on these concerns quite literally in the shaping of a niche discourse of the ‘ethics of autonomous driving’. Ambitions to produce a fully autonomous vehicle based on AI technologies are constrained by speculative concerns that its decision-making in unexpected accident situations cannot be assumed to protect humans. ‘The ethics of autonomous driving’ evaluates proposals to build ‘ethical machines’ by examining the relationship between structures of human values and moral decision-making, and how they comport to computational architectures for decision-making.
This is the first case this work takes up, chiefly organised around an analysis of a thought experiment, the Trolley Problem, and the online game, Moral Machine, that crowdsourced values to suggest approaches to an ‘ethics of autonomous driving’. Rather than evaluate the feasibility or appropriateness of these two approaches, this work attends to the more critical issue that ethics is being proposed in terms of technologies turning on the logics of risk, speculation, and probabilistic correlations that are fundamental to how machine learning makes decisions. The concern in this work is less a normative framework or approach for a better or more appropriate ethics of autonomous driving. Rather, this work argues that what we understand as ‘the ethical’ is being transformed when architected by, through, and for AI/autonomous technologies to become their own regulators.
Hence the production of autonomous driving necessitates computational infrastructures that are creating a world legible to and for the navigation of a driverless car. I argue that this is fostering computational governance that has implications for human bodies and social relations, chiefly that conventional approaches to regulation and accountability attend to human values and decision-making rather than computational ones.
A second case that this research examines is that of driverless car crashes, to examine how ‘autonomous’ driving requires substantial embodied human knowledge and micro-work. Taken together, these two cases - the ethics of autonomous driving, and crashes - make an argument for how myriad practices of knowledge-production are translating the human world into something legible to the navigational needs of the car, producing changes in the human world through the actions of the car on that basis, and advancing notions of ‘autonomy’. This work concludes with arguments for a critical reconceptualisation of ethics and ethical decision-making in AI/autonomous systems.
Der Begriff des Musikinstruments wird mit den technologischen Entwicklungen des 20. und 21. Jahrhunderts fortwährend in Frage gestellt. Elektronische und digitale Musikinstrumente lassen die begrifflichen Grenzen zwischen Instrumenten und Nicht-Instrumenten zunehmend verschwimmen. Der Band stellt sich der ebenso grundlegenden wie vielschichtigen Frage nach einem zeitgenössischen Instrumentenbegriff im Kontext medien-instrumentaler Praktiken. Dabei führt die Autorin Diskurse aus verschiedenen instrumentenbezogenen Fachgebieten zusammen und erweitert so den Begriff des Musikinstruments um kulturelle und mediale Aspekte. Mit dem Konzept der ›Instrumentalität‹ wird es schließlich ermöglicht, Musikinstrumente noch einmal ganz neu zu denken.
Companies are invited to contribute to the United Nations’ 17 Sustainable Development Goals (SDGs) and sustainability management accounting (SMA) has an important role to play in achieving them. However, if companies are to address the SDGs and linkages beyond organizational boundaries, SMA needs a broader scope than is conventionally assumed. Therefore, I advance a multi-level framework that addresses context, action-formation, and transformative contributions (CAT) in the following directions: first, an innovative systematic method that allows screening company-related SDGs and assessing corporate contributions to selected SDGs is introduced; second, management control systems are integrated to support managers in guiding employee behavior to make contributions to the SDGs; and, third, self-reinforcing mechanisms of the path-dependence theory are incorporated to serve as a guide to identifying barriers to individuals and groups becoming involved in SMA. This advanced CAT framework contributes to corporate practice and research by providing a multilevel framework that offers concrete management guidance for SMA to address the SDGs. It also facilitates analysis of both enabling and inhibiting factors at the organizational level. The advanced CAT framework has several implications for SMA: it promotes backcasting from the SDGs for benchmarking purposes, integrates different social, environmental, and economic issues, facilitates future-oriented action and transformation planning, addresses different layers such as the company as well as individuals and groups within it and enables to identify barriers hindering individuals and groups from becoming involved in SMA.
Die Gesundheit von Lehrkräften ist ein wichtiger Faktor für schulorganisatorische Aspekte (u. a. Berufswechsel, Fehlzeiten), die Lehrkraft-Schüler*innen-Interaktion (Klassenführung, Kognitive Aktivierung und emotionale Unterstützung) und die Motivation sowie die Leistungen von Schüler*innen. Werden Lehrkräfte im Schuldienst tagtäglich mit einer Vielzahl an beruflichen Herausforderungen konfrontiert, können diese bei mangelnden Ressourcen zu einem erhöhten Belastungserleben führen. Demnach sollten Lehrkräfte bereits in der Ausbildung ihre gesundheitsförderlichen Ressourcen stärken, um gesund in den Beruf zu starten. Dabei stellt sich die Frage, über welche Ressourcen angehende Lehrkräfte verfügen sollten, um trotz Herausforderungen gesund zu bleiben und wie diese in der Ausbildung gefördert werden können. Dem Konzept der Salutogenese folgend, widmet sich diese Arbeit der individuellen Gesundheitskompetenz von angehenden Lehrkräften, die als Schlüsselkompetenz verstanden wird um die körperliche und psychische Gesundheit zu stärken. Im Kontext der Lehrkräfteausbildung mangelt es an empirischen und auch konzeptuellen Studien, die die individuelle Gesundheitskompetenz in den Fokus nehmen. Entsprechend werden folgende Fragestellungen in dieser kumulativen Dissertation untersucht:
Publikation 1: Die erste Studie widmet sich den Fragestellungen, wie die weiterentwickelten Fähigkeiten der individuellen Gesundheitskompetenz bei angehenden Lehrkräften ausgeprägt sind und welche Bedeutung diese für die Gesundheit von angehenden Lehrkräften haben. Dazu wurden Studierende aus dem 2. Mastersemester (195 Lehramtsstudierende vs. 108 Nicht-Lehramtsstudierende) befragt. Die Ergebnisse zeigen, dass sich Lehramtsstudierende im Vergleich zu Nicht-Lehramtsstudierenden signifikant besser in den Komponenten der Gesundheitskompetenz einschätzen, mit Ausnahme der Verantwortungsübernahme. Die niedrigsten Ausprägungen sind in beiden Gruppen in den Fähigkeiten zur Selbstregulation und Kommunikation und Kooperation aufzufinden. Hinsichtlich des allgemeinen Gesundheitszustandes unterscheiden sich die Studierendengruppen nicht signifikant voneinander, jedoch weist knapp jede*r dritte*r Studierende*r einen schlechten Gesundheitszustand auf. Dabei steht v. a. die Komponente Selbstregulation mit dem Gesundheitszustand in Beziehung.
Publikation 2: Die zweite Studie geht ebenfalls den Fragestellungen nach, wie die weiterentwickelten Fähigkeiten der individuellen Gesundheitskompetenz bei angehenden Lehrkräften ausgeprägt sind und welche Bedeutung diese für die Gesundheit von angehenden Lehrkräften haben. Hierzu wurde jedoch in dieser Studie die Gesundheitskompetenz von Lehrkräften in der ersten (Lehramtsstudium) und zweiten Phase (Vorbereitungsdienst) der Lehrkräfteausbildung gemessen (195 Masterlehramtsstudierende vs. 242 Lehrkräfte im Vorbereitungsdienst). Lehramtsstudierende weisen im Vergleich zu den Lehrkräften im Vorbereitungsdienst signifikant höhere Werte in den übrigen Fähigkeiten der Gesundheitskompetenz auf mit Ausnahme der Fähigkeit zur Kommunikation und Kooperation. Die niedrigsten Ausprägungen sind in beiden Gruppen in den Fähigkeiten zur Selbstregulation und Kommunikation und Kooperation aufzufinden. Hinsichtlich des allgemeinen Gesundheitszustandes schätzen Lehrkräfte im Vorbereitungsdienst diesen signifikant besser ein als Lehramtsstudierende, wobei in beiden Gruppen insbesondere die Komponente Selbstregulation mit dem Gesundheitszustand korreliert. Die Ergebnisse multipler Regressionsanalysen zeigen, dass die Fähigkeiten zur Selbstregulation, Selbstkontrolle und Verantwortungsübernahme Prädiktoren für den Gesundheitszustand von Lehramtsstudierenden darstellen, und die Fähigkeiten zur Selbstregulation und Verantwortungsübernahme die Prädiktoren für den Gesundheitszustand der Lehrkräfte im Vorbereitungsdienst sind. Insgesamt verdeutlichen die Ergebnisse die Bedeutung der Gesundheitskompetenz für den Gesundheitszustand und verweisen auf die Forderung nach Interventionen zur Förderung der Gesundheitskompetenz, die insbesondere die Fähigkeiten zur Kommunikation und Kooperation und Selbstregulation fokussieren, wobei die Selbstregulation einen besonderen Stellenwert einnimmt.
Publikation 3: In der dritten Studie wird vor allem untersucht wie die berufliche Selbstregulation mit den weiterentwickelten Fähigkeiten der individuellen Gesundheitskompetenz von angehenden Lehrkräften zusammenhängt und welche Komponenten die psychische Gesundheit von angehenden Lehrkräften bedingen. Dazu wurden 407 Lehrkräfte im Vorbereitungsdienst befragt. Die Selbstregulationstypen wurden mittels einer latenten Profilanalyse analysiert und die vier beruflichen Selbstregulationstypen repliziert (Gesundheitstyp: 35.4%, Schontyp: 22.8%, Typ A: 19.2% und Typ B: 22.6). Es zeigen sich Zusammenhänge zwischen den Subdimensionen der beruflichen Selbstregulation und den Komponenten Selbstkontrolle und Selbstregulation der Gesundheitskompetenz. Unabhängig voneinander hängt der Gesundheitstyp, Schontyp und Typ A sowie die Gesundheitskompetenzdimensionen Selbstregulation, Selbstkontrolle und Verantwortungsübernahme mit dem psychischen Wohlbefinden zusammen. Werden beide Ressourcen zusammen betrachtet, erklären die Komponenten der individuellen Gesundheitskompetenz mehr Varianz im psychischen Wohlbefinden als die Selbstregulationstypen. Aus den Ergebnissen kann abgeleitet werden, dass eine Lehrkräfteausbildung, die Aspekte der Selbstregulationsfähigkeit einbezieht, nicht nur das Wohlbefinden von angehenden Lehrkräften verbessern könnte, sondern auch ihre individuelle Gesundheitskompetenz. Eine Förderung der beruflichen Selbstregulation durch Lernangebote könnte auch mit der Stärkung der individuellen Gesundheitskompetenz von angehenden Lehrkräften verbunden sein.
Publikation 4: In der vierten Studie wurden die empirisch gewonnenen Erkenntnisse der ersten drei Studie aufgegriffen und ein Seminarkonzept zur Förderung der individuellen Gesundheitskompetenz von angehenden Lehrkräften im Rahmen der Lehrkräfteausbildung erstellt. Das Seminar umfasst unter anderem allgemeine gesundheitswissenschaftliche Grundlagen und die theoretische Hinführung zu verhaltensbezogenen Bewältigungsstrategien, am Beispiel von Achtsamkeit, und verhältnisbezogenen Strategien im Kontext Schule mit Bezug zur Unterrichtsqualität und Schulentwicklung.
Das Rahmenpapier bettet die vier Publikationen in den übergeordneten theoretischen Kontext ein, diskutiert die Ergebnisse und leitet abschließend Empfehlungen für weitere Forschung und für die Lehrkräfte(aus)bildung ab. Das Rahmenpapier schließt mit einem Fazit.
Diese Dissertation verfolgt einerseits das Ziel der umfassenden Sichtung der technischen, psychologischen, philosophischen und neurobiologischen Grundlagen der Künstlichen Intelligenz und damit die Etablierung einer epistemischen und ontologischen Eingrenzung der Technologie und andererseits das Ziel der moralphilosophischen Beurteilung und Risikobewertung. Die zentrale Hypothese unterstellt der Technologie, die überhaupt nur durch die rasanten Fortschritte der Natur- und Ingenieurwissenschaften und damit durch die Aufklärung ermöglicht wurde, eine Unterwanderung der zentralen Prinzipien und Werte der Aufklärung. Zu befürchten ist eine selbstverschuldete Unmündigkeit des Menschen durch die Künstliche Intelligenz. Wesentlich in der Argumentation ist das Aufgeben von menschlicher Autonomie zugunsten einer Technologie, die selbst nicht autonom sein kann, die Verlagerung von Verantwortlichkeiten in einen neu entstandenen rechtsfreien Raum, der Verlust der menschlichen Individualität und letztlich die Preisgabe der Menschenwürde durch den Übergang in ein „Reich ohne Notwendigkeit“, aus dem es kein Entkommen gibt. Eine Ethik der Künstlichen Intelligenz muss, so die normative Schlussfolgerung, die Wahrung der menschlichen Autonomie, Verantwortlichkeit, Individualität und Würde in den Vordergrund stellen, sodass ein individueller und kollektiver Rückfall des Menschen in die Unmündigkeit verhindert wird.
Schlagwörter: Künstliche Intelligenz, Aufklärung, Mündigkeit, Menschenwürde, Verantwortung, Autonomie, Freiheit, Individuum
Mathematisches Problemlösen ist eine in den Bildungsstandards verankerte Kompetenz, die es bei Schüler_innen explizit zu fördern gilt. Für eine erfolgreiche Bearbeitung von Problemlöseaufgaben ist laut Begriffsverständnis der Bildungsstandards des Faches Mathematik die Auswahl und zielführende Anwendung von Heurismen erforderlich, was für Schüler_innen durchaus herausfordernd sein kann. Bereits seit Jahrzehnten beschäftigt sich daher die Forschung der deutschsprachigen Mathematikdidaktik mit der Schaffung geeigneter Lernmaterialien zur Förderung von Problemlösekompetenz und dennoch sind bislang nicht alle Unklarheiten ausreichend beantwortet. So ist beispielsweise nach wie vor weitestgehend unklar, wie eine Förderung der Kompetenz etwa durch geeignete Lernmaterialien unterstützt werden kann. Daraus ergibt sich nicht zuletzt der unmittelbare Forschungsansatz, wie geeignete Lernmaterialien geschaffen bzw. ausgestaltet sein sollten, um die Entwicklung von Problemlösekompetenz von Schüler_innen zu fördern.
Im Fokus stand dabei die Beantwortung folgender übergeordneter Forschungsfrage, welche sich in der Dissertationsschrift in weitere Teilfragen untergliedert: „Welche Veränderung des Bearbeitungserfolgs bei Problemlöseaufgaben zur Flächeninhaltsberechnung zeigen Schüler_innen – hinsichtlich der Auswahl und Anwendung von Heurismen – durch die Bearbeitung eines papier- bzw. eines videobasierten Lösungsbeispiels?“
Die Beantwortung der Forschungsfrage fand im Rahmen einer durchgeführten Studie in Form einer quasiexperimentellen Laborstudie mit insgesamt 38 Schüler_innen statt. Untersucht wurde dabei, inwiefern medial unterschiedlich aufbereitete Lösungsbeispiele eine geeignete Lernunterstützung zur Entwicklung von Problemlösekompetenz darstellen. Dafür wurde in einer Treatmentgruppe eine Problemlöseaufgabe zur Flächeninhaltsberechnung mit Hilfe eines papierbasierten Lösungsbeispiels bearbeitet, während in einer zweiten Treatmentgruppe ein inhaltlich identisches Lösungsbeispiel videobasiert in Form eines Erklärvideos zur Verfügung stand.
This thesis deals with sustainability in African Higher Education Institutions (HEIs) and the influence of language in achieving sustainable development. Several authors highlighted the existing imbalance of sustainability research in higher education, with most publications focusing on the so-called Global North. Little is known about sustainability in the so-called Global South, and in African educational institutions in particular. The first article of this thesis investigated existing sustainability activities in African HEIs. Rather than focusing on the shortcomings, the paper took a positive stance, opposing the predominant language of deficits in research on Africa. In the Delphi study conducted, 32 experts from 29 HEIs in 16 African countries described the sustainability activities they are engaging in. Experts provided information about their experiences in their respective HEI, while language and culture emerged as areas in need of further research. The second article therefore focused on the relationship between language and education for sustainable development in African educational institutions, and systematically reviewed scholarly literature regarding this connection. Authors of the reviewed 33 papers approached this connection mainly on a theoretical and philosophical level, focusing on education and Africa as a whole rather than specified forms of education in specific countries. The third article examined the views of Tanzanian higher education students and graduates regarding language and sustainability. Participants explained how they integrate sustainability and the Sustainable Development Goals (SDGs) into their research and how they approach translations in the process. In the ensuing interviews, participants estimated that only a fraction of people outside of academia are aware of sustainability and the
SDGs, rendering the achievement of target 4.7 unlikely. This thesis therefore contributes to a better understanding of the current challenges in implementing sustainability and the SDGs in African educational institutions. It highlights the need to integrate (local) African languages in order for sustainability activities as well as the SDGs to be successful, and to keep the pledge to leave no one behind.
Das Promotionsprojekt, das in das Forschungsprojekt Nawi-In (Naturwissenschaftlichen Unterricht inklusiv gestalten – Kompetenzentwicklung von Lehramtsstudierenden für und mit der Praxis) Förderkennzeichen 01NV1731, Laufzeit 30.04.2018-30.09.2021) eingebettet ist, fokussiert die Entwicklung von Analysekompetenzen Masterstudierender der Sekundarstufe I mit naturwissenschaftlichem Fach, inklusiven naturwissenschaftlichen Unterricht zu identifizieren und zu analysieren. Hierfür analysierten die Masterstudierenden (N=5) sowohl eigenen videografierten als auch fremden inklusiven naturwissenschaftlichen Unterricht im Rahmen eines dreisemestrigen Projektseminars. Die Begleitforschung, die im ersten und zweiten Semester des Projektseminars stattfand, untersuchte die Entwicklung der Merkmalsausprägungen der Selbstwirksamkeit, Einstellungen und des selbsteingeschätzten fachdidaktischen Wissens (PCK) in Bezug zu inU.
Der Kern der Forschung ist die Entwicklung eines Modells, um die video-stimulierten Reflexionen zum eigenen (pre und post) und fremden inklusiven naturwissenschaftlichen Unterricht (pre, re und post), die audiografiert und transkribiert wurden, auszuwerten und so eine Entwicklung der Analysekompetenzen über die verschiedenen Erhebungszeitpunkte hinweg feststellen und abbilden zu können.
Das Analytical Competency Model (ACM) ist ein Kategoriensystem, das aus verschiedenen Forschungen zu Professionalisierung, Expertiseforschung über Lehrpersonen und professioneller Unterrichtswahrnehmung besteht. Validiert wurde das ACM durch das Erstellen eines Expert*innenratings.
Die Ergebnisse zeigen eine deutliche Entwicklung der Analysekompetenzen in der Studierendenstichprobe. Es wurden über den Erhebungszeitraum hinweg mehr Momente als inU identifiziert und die identifizierten Momente in übergeordnete Konzepte zu inU eingeordnet.
Tropical ecosystems are critical for biodiversity conservation and local people’s livelihood sustenance. However, these ecosystems are under high pressure from land-use and land cover (LULC) change, which is further projected to intensify and increase rapidly, thereby affecting biodiversity and the provisioning of vital ecosystem services (ES). It is thus important to understand how LULC might change in the future and how such changes could affect biodiversity and ES provisioning in a given landscape of tropical ecosystems. Scenario planning has become an increasingly popular tool and technique to produce narrative scenarios of the future landscape change. Thus, quantifying changes under different land-use scenarios could be a means to elucidate the synergies and trade-offs within the scenarios. In this dissertation, I examine the future of biodiversity and ES provisioning for different plausible land-use scenarios in southwestern Ethiopia.
First, I translated four future plausible narrative social-ecological land-use scenarios (namely, ‘Gain over grain’, ‘Coffee and conservation’, ‘Mining green gold’ and ‘Food first’) developed for southwestern Ethiopia by participatory scenario planning into spatially explicit LULC scenario maps. Results showed distinct LULC changes under each scenario. For instance, forest cover under the ‘Gain over grain’ and ‘Coffee and conservation’ scenarios remained similar to the current landscape covering about half of the landscape, in contrast it decreased by 27% and by about 18% under ‘Mining green gold’ and ‘Food first’ scenarios, respectively. Coffee plantation and arable land for cereal crop production covered about half of the landscape under ‘Mining green gold’ and ‘Food first’ scenarios, respectively. Second, I investigated the impact of these land-use scenarios on biodiversity by specifically modelling woody plant species richness in farmland and forest. Both indicators of human disturbance and environmental conditions were used. The results indicated that the ‘Mining green gold’ and ‘Food first’ scenarios would result in strong losses of biodiversity, whereas the ‘Gain over grain’ scenario largely maintained biodiversity relative to the baseline. Only the ‘Coffee and conservation’ scenario showed positive changes for biodiversity that are likely viable in the long run. Third, I also investigated the effect of these land-use scenarios on woody plant-based ES provisioning by combining woody plant species with household surveys on how woody plants were used by the local community. I modelled and predicted the current and future availability of woody plant-based ES under the four scenarios of landscape change. The results showed that land-use scenarios with intensified food or cash crop cultivation would lead to the contraction of woody-plant based ES from farmland to forest patches, implying increased pressure on remaining forest patches. In such a context, attempts to ‘spare’ forest patches from local people will likely be ineffective or alternatively, will have serious negative consequences for local livelihoods. I further modelled and mapped the spatial distribution of six ES: two regulating services (erosion control and carbon storage), three provisioning services (coffee production, crop production and livestock feed) and a supporting service (woody plant richness) for the current landscape and the four land-use scenarios. Results showed smallholder farmers specializing on cash crops (‘Gain over grain’ scenario) would likely cause little change to ES generation, but major losses in ES would result from intensification scenarios (‘Mining green gold’ and ‘Food first’). Finally, the ‘Coffee and conservation’ scenario appears to be the most sustainable scenario because it would secure diverse ES in the long run. This study provides methodological and empirical contributions to the developing fields of scenario planning, social-ecological systems analysis, conservation and landscape change sciences. In addition, it has practical implications for local stakeholders and decision-makers, who can draw on findings for a better-informed land-use management.
Overall, the findings of this dissertation showed the importance of integrating future land-use mapping with participatory, narrative-based scenarios to assess the social-ecological outcomes of alternative futures. The spatially explicit maps of LULC change, biodiversity and ES (at different scales) could be used as a valuable input to support stakeholders and decision-makers to weigh the advantages and disadvantages of different development trajectories on ecosystems and human well-being and to avoid or minimize future undesirable consequences. To this end, apart from the benefits of coffee production under ‘Mining green gold’ and crop production under ‘Food first’ scenarios, the findings under these scenarios of large-scale agricultural intensification point to a potentially high loss of biodiversity and ES. These two scenarios could have a negative long-term impact on ecosystems and human well-being. Finally, the ‘Coffee and conservation’ scenario, which involves the creation of a new biosphere reserve, appears to be the most sustainable scenario. This scenario could result in a sustainably managed, diversified landscape which could make major contributions to biodiversity conservation and human well-being in the region and beyond.
The global loss of biodiversity has been widely studied, yet it has many different facets depending on the context. Key drivers for biodiversity loss are anthropogenic, including agricultural intensification, expansion and land abandonment. Though the loss of biological diversity is an ecological phenomenon, it also has a social dimension. This makes the study of the social landscape, encompassing the multitude of perspectives and aspirations by different stakeholders, highly relevant for better navigating trade-offs between biodiversity conservation and other land use objectives. Engaging with and addressing contextual understandings of biodiversity is vital to develop socially palatable solutions for biodiversity loss. This dissertation, therefore, takes a place-based approach to studying biodiversity conservation trade-offs and seeks to understand how the perspectives and aspirations of different stakeholders shape them. First, it aims to identify shared viewpoints as ensembles of perceptions and meanings about human-nature relations and biodiversity (research aim 1). Second, it aims to understand how biodiversity is valued and constructed in stakeholders’ aspirations towards their landscape (research aim 2). To this end, a convergent mixed methods approach and case study design are used. Two cases were selected that face different underlying drivers of land-use change, resulting in loss of biodiversity. The Muttama Creek Catchment area is a farming landscape in south-eastern Australia where the ongoing intensification of agricultural production threatens native biodiversity. In the Spreewald Biosphere Reserve in north-eastern Germany, land abandonment and the resulting loss of the biodiversity-rich wet meadows presents a key challenge for biodiversity conservation. Narratives and discourses provide conceptual lenses through which I study biodiversity conservation trade-offs. Drawing on Q-methodology, this dissertation identifies biodiversity-production discourses for the first case study and cultural landscape narratives for the second case study. Moreover, based on a participatory futures approach, the Three Horizons Framework, it elicits narratives of change that highlight opportunities for biodiversity conservation in farming landscapes.
The findings highlight that despite some overlap in how stakeholders perceive biodiversity, contrasting problem framings and different biodiversity priorities present hindrances to concerted action to protect biodiversity and for collaboration (research aim 1). The findings also identify shared values among stakeholders (research aim 2). However, there is polarity and contestation around the role and importance of biodiversity in rural development. In conclusion, the findings contribute to three key themes in sustainability science and conservation debates: (1) They support calls for more inclusive and pluralistic biodiversity governance and highlight the need to engage holistically with multiple trade-offs with biodiversity conservation. (2) The empirical findings highlight the potential for stewardship as a broad value for place-based actions and biodiversity disvalues as another realm of engagement to improve conservation outcomes. (3) This dissertation demonstrates how a participatory approach helped identify opportunities for change and supported collective sensemaking about current issues and ways forward. Arts-based research is suggested as an avenue for future research to engage with different ways of knowing and thinking. In conclusion, this dissertation highlights how people value biodiversity differently based on their relative perspectives, the role of biodiversity in aspirations for the future and what this means for governing the transformative changes needed to address the issue of biodiversity loss.
As human rights evolved to become part of a dominant moral discourse in world politics, regional organisations (ROs) often portray themselves in the language of human rights. Facing growing contestation and politicisation, they have also gradually begun to legitimate their authority drawing on human rights. Yet not all ROs do so to the same extent, in the same manner, or consistently over time. ROs with a long tradition in human rights work and democratic membership, such as the Council of Europe use it highly consistently. ROs with no historical record of human rights protection and autocratic membership, such as the Arab League (LoAS) use it too, although more irregularly. This begs the question: why and how do ROs use human rights for self-legitimation? To answers this research question, I combine a macro analysis using qualitative comparative analysis (QCA) on 23 ROs from 1980 to 2019 with a micro analysis via process-tracing in two cases – LoAS and the Caribbean Community (CARICOM).
Ultimately, ROs use human rights in their legitimation because they strive for congruence. When norms, values, and moral principles purported and embodied by the RO are congruent with those of its core constituency and all relevant audiences, I observe human rights legitimation. I argue that the degree of congruence combines with different degrees of delegitimation stemming from the distinct constellation of agents and audiences of legitimation. I circumscribe this via four types of human rights legitimisers. Testing existing theories on legitimacy, legitimation, and human rights, the QCA suggests that ‘Self-containing Legitimisers’ are ROs with a status quo of congruence between the RO and its core constituency. ‘Signalling Legitimisers’ irregularly use human rights legitimation as a signal to respond to additional audiences. Thanks to the case studies, I further refine existing theory. CARICOM constitutes a case of a ‘Reviving Legitimisers’ where delegitimation towards their core constituency occurs to which it reacts by reviving what it embodies which entails including human rights in its legitimation. With LoAS, I observe a ‘Brokering Legitimisers’ in which case delegitimation is on the verge of a legitimacy crisis, but its Secretary General manages to broker human rights to two diverging audiences thanks to localisation. Thus, this book contributes to existing research first by providing an explanation of how a distinct norm is used in self-legitimation, second by nuancing our understanding of agents and audiences of legitimation, and third by introducing the concept of localisation to the study of legitimation.
Key words: Human Rights, Self-Legitimation, Regional Organisations, Legitimacy, International Authority, Norm Diffusion, League of Arab States, Caribbean Community, Global South, International Institutions
Considering the historical relationship of subordination from the Global South countries to the Global North countries, this research aims to understand how culture is instrumentalized in the Peruvian political arena looking to achieve Western development standards. By focusing on the Commission of Culture and Heritage of the Congress of Peru, period 2016-2017, as its case study, it will do a discourse analysis to try to find the spheres in which developmental ideology is produced and reproduced. Those findings will be later discussed under decolonial thought and dependency theories.
Despite warnings from scientists and from society starting in the 1970s, we have long overshot our planetary boundaries – eroding biodiversity, changing our landscapes, and polluting our soil and atmosphere. Yes, efforts to change the unsustainable trajectories of our Earth system have increased through, for example, the Millennium Goals, the Sustainable Development Goals, or the Aichi Targets, but to no avail. The interventions to increase sustainability are conflicting on local, national and global levels, and often prioritise quick-fixes and short-term solutions instead of tackling the root causes of the “sustainability gap”. We, hence, need to find “places to intervene in complex systems that bring about transformative change” (Meadows 1999) – a premise and concept that Donella Meadows calls “leverage points”. Based on her seminal work, a team from the Leuphana University has identified three “realms of leverage” in which changes may lead to system transformation (Abson et al. 2017). One of these realms is the reconnection of humans to nature. In this habilitation, I focus on this realm of leverage and aim to (1) enhance the understanding of the influence of landscape change on human-nature relations through empirical, place-based research and comparisons across landscapes in different countries and continents; (2) identify and clarify the new concepts of relational values and leverage points; and (3) highlight empirical evidence on leverage points to foster human-nature relations for sustainability transformation, building mainly on empirical work done in six landscapes in Transylvania, Romania and Lower Saxony, Germany, but also including case studies from Ethiopia and India, systematic literature reviews and conceptual pieces. This thesis showed that cultural landscapes are changing with astonishingly comparable trajectories toward unsustainable futures. Our earth’s current environmental and climate crisis will continue to erode the fundaments of sustainability, hence, re-connecting humans to nature is of outstanding significance for transformative change. Identifying leverage points and implementing an intervention to strengthen human–nature relations will be a great challenge in the coming years. One possible leverage point can be strengthening experiential and emotional dimensions, as they specifically shape the connections people have with cultural landscapes. Further, this thesis highlighted the importance of the interlinkages between shallow and deep leverage points. Our results show that structurally complex landscapes and structurally rich social relations mediated by nature are interlinked and strengthening one, may strengthen the other. Moreover, strengthening sense of place and a sense of agency may enable self- and re-organization of cultural landscapes by opening the possibility to renegotiate people’s values for values and the goals of the social-ecological system, which, in turn, may enhance the structural diversity of landscapes and small-scale agriculture. Our results presented in this thesis also lay the ground for the hypothesis that degrading landscapes might also degrade social relations, which, in turn, can lead to contrasts and conflicts between actors and social groups. Although much work is still necessary to foster transformative change, this thesis offers innovative approaches. This thesis created and popularised the “Leverage points perspective”, including “chains of leverage”, as well as producing novel insights on human-nature relations – such as the distinction of human-nature connectedness and relational values, classifying relational value groups and empirically assessing dimensions of human-nature connectedness and relational values concerning landscape change and landscape features. These novel contributions can have wide-ranging impacts on the scientific discussions and societal implementation of interventions for sustainability.
Leverage points to foster human-nature relations for sustainability transformation
Thematischer Schwerpunkt dieser Arbeit ist die rechtliche Einordnung des Kinderrechtes auf Familienzusammenführung, welche ausgehend von den Kinderrechtskonventionen über europäisches Recht in nationales Recht mündet. Es werden Brüche in der Rechtsauslegung und Rechtsanwendung aufgezeigt, welche Familieneinheiten einschränken oder verhindern. Diesem gegenüber wird die Umsetzung der Kinderrechtskonventionen in nationales Recht in der Bundesrepublik Deutschland gestellt, um aufzuzeigen, dass Bestrebungen zur Umsetzung der Kinderrechtskonventionen auf nationaler Ebene vorhanden sind, diese jedoch gegen integrationspolitische Interessen im Sinne einer geordneten Zuwanderung ausgelegt werden. Um eine Brücke der intensiven rechtlichen Auseinandersetzung zu den Tätigkeitsrealitäten von Sozialarbeitern zu schlagen, werden weitergehend die Chancen und Herausforderungen für die Soziale Arbeit in der tatsächlichen Arbeitsrealität mit unbegleiteten, minderjährigen Ausländer betrachtet. Innerhalb dieses Kontextes wird dargestellt, dass das Arbeitsgebiet Flüchtlingssozialarbeit existent und aufgrund stetiger Zuwanderung in den Arbeitsrealitäten der Sozialen Arbeit allgegenwärtig ist. Hieraus ergeben sich Ausweitungen der Tätigkeitsgebiete Sozialer Arbeit, welchen mit einer Modifikation des Anforderungsprofils für Tätigkeiten in der Sozialen Arbeit mit Geflüchteten und einer verstärkten sozialpolitischen Einflussnahme begegnet werden muss.
Mikroalgen können bei den internationalen Bemühungen zur Begrenzung der CO2-Emissionen einen wichtigen Beitrag leisten. In der Photosynthese der Mikroalgen wird, wie auch bei Landpflanzen, das CO2 aus der Atmosphäre in Biomasse fixiert. Im Gegensatz zu Landpflanzen können Mikroalgen zudem exponentiell wachsen, haben geringere Anforderungen an die Wasserqualität und konkurrieren nicht mit Agrarflächen, die begrenzt und für die Nahrungsmittelsicherheit der Weltbevölkerung erforderlich sind. Die produzierte Mikroalgenbiomasse kann als regenerative Ressource zu Biokraftstoffen wie Biogas und Biodiesel umgewandelt und somit als Energieträger genutzt werden. Zudem können Mikroalgen auch bei der biotechnologischen Produktion kommerziell relevanter Wertstoffe wie Pigmenten und Omega-3-Fettsäuren für die Nahrungsmittelindustrie Anwendung finden. Mit dem Ziel der Steigerung dieser Wertstoffe stand die Untersuchung des Einflusses der Kultivierungsparameter Licht und Temperatur auf das Wachstum und die Zusammensetzung der Mikroalgenbiomasse im Mittelpunkt dieser Dissertation. Insbesondere der Einfluss unterschiedlicher Lichtspektren auf das Wachstum und die Wertstoffproduktion in Mikroalgen wird in der Literatur kontrovers diskutiert und wurde daher detailliert untersucht. Zusätzlich wurde überprüft, ob sich die gewonnenen Erkenntnisse auch auf Landpflanzen übertragen lassen.
Im Rahmen dieser Promotion wurde erstmals systematisch der Einfluss unterschiedlicher Temperaturen und Lichtspektren im zeitlichen Verlauf der Kultivierung auf Mikroalgen untersucht. Hierbei konnten distinkte Spektralbereiche sowie Temperaturen ermittelt werden, die für eine maximale Produktion von Biomasse und Pigmenten sowie einem maximalen Desaturierungsgrad der Fettsäuren erforderlich sind. Die in dieser Arbeit gewonnenen Erkenntnisse tragen zu einem besseren Verständnis der Biochemie von photosynthetischen Organismen bei. Dieses Wissen ist bereits in die Entwicklung eines Hybridsystems zur komplementären Nutzung des Sonnenlichts für die Photovoltaik und Biomassenproduktion eingeflossen und könnte künftig bei der gezielten Produktion von Wertstoffen mittels Mikroalgen weitere Anwendungen finden.
In den Untersuchungen wurden Mikroalgen sowie zusätzlich Rapspflanzen (Brassica napus L.) unter verschiedenen Bedingungen kultiviert und die Biomassenkonzentration sowie die Fettsäure- und Pigmentkomposition zu festgelegten Zeitpunkten untersucht. Mit einer modifizierten Folch-Extraktion wurden die Fettsäuren extrahiert, umgeestert und mittels Gaschromatografie mit Elektronenstoßionisation Massenspektrometrie (GC-EI/MS) analysiert. Die Analyse der Photosynthesepigmente erfolgte durch Hochleistungsflüssigkeitschromatografie gekoppelt mit einem UV/VIS Spektrometer (HPLC-UV/VIS).
Zunächst wurde die grüne Mikroalge Acutodesmus obliquus (Turpin) bei unterschiedlichen Temperaturen mit blauem, grünem und rotem Licht unterschiedlicher Photonenflussdichte kultiviert. Die Bestrahlung mit blauem Licht führte unter allen Bedingungen zur geringsten Biomassenproduktion.
Demgegenüber bewirkte die Behandlung mit rotem Licht bei allen Experimenten eine höhere Biomassenproduktion. Die Biomassenproduktion unter grünem Licht war dagegen sehr variabel und abhängig von den Rahmenbedingungen. Entgegen der klassischen Lehrmeinung ließ sich mit diesem Spektralbereich insbesondere bei hohen Photonenflussdichten und hohen Biomassenkonzentrationen ein höheres Wachstum als mit rotem Licht erzielen. In nachfolgenden Untersuchungen wurde zudem festgestellt, dass die Biomassenkonzentration im Vergleich zur Behandlung mit rotem Licht signifikant erhöht ist, wenn das Lichtspektrum neben langwelligeren Anteilen zusätzlich noch kurzwelligere Spektralanteile unter 550 nm enthält. Diese Ergebnisse wurden mehrfach an A. obliquus und bei der nah verwandten Grünalge Monoraphidium braunii (Nägeli) reproduziert.
Bei der Fettsäureanalyse war ein starker Einfluss der Parameter Temperatur und Lichtspektrum auf die Fettsäurekomposition in A. obliquus feststellbar. So bewirkte eine niedrige Kultivierungstemperatur einen erhöhten prozentualen Anteil der mehrfach ungesättigten Fettsäuren (PUFAs) 16:4, 18:3 und 18:4. Eine starke Erhöhung der prozentualen Anteile dieser PUFAs wurde ebenfalls bei Kultivierung mit grünem und blauem Licht gegenüber rotem Licht festgestellt. Umgekehrt waren die relativen Proportionen der ungesättigten Fettsäuren mit niedrigerem Desaturierungsgrad (16:1, 16:2, 16:3, 18:1 und 18:2) unter rotem Licht gegenüber grünem und blauem Licht erhöht. Weil der Spektralbereich zwischen 450 und 550 nm (blaugrünes Licht) im grünen und blauen Licht, nicht jedoch im roten Licht enthalten ist, wurde geschlossen, dass dieser Spektralanteil für den Einbau von Doppelbindungen in die Kohlenwasserstoffkette der Fettsäuren in A. obliquus relevant ist. Im weiteren Verlauf der Arbeit wurde diese Beobachtung bei A. obliquus reproduziert und durch die Kultivierung mit spezifischen Lichtspektren auf einen Spektralbereich von 470–520 nm eingegrenzt. Zudem wurde auch eine maximale Konzentration aller in A. obliquus identifizierten Pigmente bei Kultivierung mit blaugrünem Licht gemessen. Da sowohl die PUFAs 16:4 und 18:3 als auch die Pigmente vorwiegend in der Thylakoidmembran vorkommen, wurde die Hypothese entwickelt, dass blaugrünes Licht eine physiologische Reaktion bewirkt, die zu einer erhöhten Bildung von Thylakoidmembranen führt.
Im letzten Teil der Arbeit wurde überprüft, ob die an A. obliquus gewonnenen Erkenntnisse auf die phylogenetisch nah verwandte Grünalgenart M. braunii und auf die Landpflanze B. napus übertragen werden können. Bei M. braunii wurde, ähnlich wie bei A. obliquus, ein maximaler Desaturierungsgrad der Fettsäuren und eine maximale Konzentration der Photosynthesepigmente bei Behandlung mit blaugrünem Licht gemessen. Zudem konnten Hinweise dafür gefunden werden, dass blaugrünes Licht ebenfalls relevant für die Desaturierung der Fettsäuren in den Folgeblättern von B. napus ist.
The emergence of sustainability as a guiding principle for tourism development came along with needs to introduce instruments that can monitor the actual impacts of tourism. Sustainability assessments in tourism (SAT) have gained popularity in recent years with a range of measurement schemes being introduced for national and subnational tourism destinations. With the help of sustainability indicators these schemes intend to guide decision-makers in making better evidence-informed decisions and to improve the overall sustainability performance of tourism. Yet, sustainability assessments have hardly led to changes in organisational or management structures in tourism in the last years.
With this dissertation I aim to contribute to a deeper understanding of the implementation and performance of sustainability assessments, by linking transformative needs of tourism with necessary assessment approaches that can serve as effective instruments for a shift towards a more sustainable tourism development. Thus, the research is part of recent efforts to establish profound and effective measurement approaches for sustainable tourism.
I employ a mixed-methods approach combining qualitative, quantitative, set-theoretic, and review methods, with the aim of maximising the validity of results. First, I explore the general progress and current state of research on sustainability assessments in tourism, with the intention to identify patterns, key elements and research gaps within assessment approaches This is followed by subsequent detailed analyses that examine specific environmental and socio-economic sustainability issues with the aim of providing conceptual, methodological and empirical solutions for assessing them in detail.
My dissertation highlights that concrete assessment tools are needed for evidence-informed decision-making and the establishment of effective actions in destination management. The findings indicate that assessments will be more successful in terms of serving as tools for decision-making, if they tackle main drivers of change and encourage management or policymakers to take decisions that affect multiple sustainability issues. It also reviews different concepts and accounting principles and rises awareness of a cautious selection of methods and measurement approaches, as this may affect overall results. The thesis empirically evaluates and applies different measurement approaches in specific destinations, with the help of quantitative and qualitative data collection methodologies. In general, my thesis provides further clarification about key environmental and socio-economic measurement methodologies, which supports ongoing debates about sustainability impacts of tourism. Thus, the research contributes to knowledge, frameworks, methodologies and practical application for tourism governance and tourism sustainability science.
Over the past two decades, transitions research has witnessed rapid development. However, there is still a notable gap in our understanding of sustainability transitions in conflict settings and the role of international organizations in these transitions. Little is known about the dynamics of power, limiting and facilitating factors, and the role of (international) actors in sustainability transitions in conflict settings. This dissertation seeks to make contributions to these discussions by examining energy transitions in Afghanistan, a conflict-affected country, between 2001 and 2021. It specifically focuses on the involvement of international development organizations, shedding light on their role in energy access, institutional change, and imagining Afghanistan’s future energy system development.
After security, access to affordable energy is frequently reported to be Afghanistan’s most pressing need. Following the fall of the first Taliban regime in 2001, billions of dollars and dozens of international development organizations poured into Afghanistan to support the reconstruction of the country including its energy sector. In the twenty years between 2001 and 2021, the government of Afghanistan and the international development organizations worked on various aspects of energy system development despite on-going insurgency and threats against infrastructural projects. After two decades of armed opposition, the Taliban regained power on August 15, 2021, resulting in the suspension of operations for most development organizations, with only a few humanitarian agencies remaining active. Within this context, this thesis explores topics such as the country’s energy potential and policy, the role of international development organizations in the energy sector, and visions for a future energy system in Afghanistan.
The research conducted for this thesis employed a qualitative case study approach, utilizing semi-structured interviews and document analysis. The key findings of this research can be summarized as follows: Afghanistan possesses a renewable energy potential exceeding 300 GW, encompassing 23 GW of hydro power (across all scales), 220 GW of solar power, 67 GW of wind power, and 4 GW of biomass. However, the domestic installed capacity remains limited, ranging between 600 and 700 MW, mainly sourced from large hydro facilities and thermal plants, with renewable energy playing a minor role. Throughout the period of 2001-2021, Afghanistan heavily relied on electricity imports from Central Asian countries, fulfilling around 80% of its electricity needs. International development organizations played a crucial role in assisting the governments of Afghanistan in establishing a regulatory framework for the energy sector. Notably, they contributed to the development of key laws and policy documents, such as the Renewable Energy Policy, which outlines Afghanistan's objective of sourcing 95% of its electricity from renewable sources by 2032.
Further findings of this research concern firstly the role of international organizations in institutional change and secondly the energy imaginaries in the conflict-affected setting of Afghanistan. Throughout their 20-year involvement, international organizations sought
VIII International Organizations and Energy Transitions in Afghanistan
wide-ranging institutional changes in relation to the energy sector of Afghanistan. These included (a) the development of a regulatory framework for the sector involving several organizational and regulative changes, (b) extensive privatization efforts including corporatization of the state-owned energy utility DABS, and (c) empowerment of women in both general and energy-specific contexts.
In terms of energy imaginaries, a dominant imaginary is that of ‘Afghanistan as an energy corridor’ between Central Asia and South Asia, which is supported by the government and several powerful actors. When considering energy sources, experts advocate for a least-cost supply approach, regardless of the specific energy sources. Additionally, experts recommend implementing small-scale off-grid projects in remote and sparsely populated rural areas, while advocating for grid-connected large-scale projects in urban areas. The suggestion for off-grid projects stems from their resilience in the face of armed conflicts, such as the numerous attacks documented on energy projects in Afghanistan. This research contributes to literature on the role of international organizations in sustainability transitions, transitions in conflict settings, and the energy sector of Afghanistan.
Keywords: Afghanistan; International development organizations; Energy Transitions; Sustainability transitions; Fragile and conflict settings
Antibiotika sind aus der Human- und Veterinärmedizin nicht mehr wegzudenken. Ihr hoher Verbrauch führt jedoch zu stetig steigenden Konzentrationen der Wirkstoffe und ihrer Transformationsprodukte in der Umwelt. Antibiotika in der Umwelt haben das Potential Funktionen von Ökosystemen zu stören und tragen zur Entwicklung und Selektion von resistenten Bakterien bei. Um diese negativen Auswirkungen auf Mensch und Umwelt zu reduzieren, sind vielseitige Lösungen notwendig. Benign by Design (BbD) ist ein wichtiger Baustein dafür. Daher ist es wichtig zu verstehen, inwiefern das BbD Prinzip auf verschiedene Substanzgruppen anwendbar ist und welche Limitierungen zu berücksichtigen sind.
Mit dieser Arbeit soll ein Beitrag zur Entwicklung von in der Umwelt mineralisierbaren Antibiotika entsprechend des Benign by Design Konzeptes geliefert werden. Dies wurde am Beispiel der Fluorchinolonantibiotika durchgeführt, da diese sehr wichtige, aber auch sehr persistente Wirkstoffe sind. Ziel war es, zu verstehen, welche Veränderungen an der Grundstruktur vorgenommen werden können, um Derivate zu erzeugen, die während der Wirkdauer und Lagerung ausreichend stabil bleiben, aber anschließend in der Umwelt möglichst schnell und vollständig mineralisiert werden können.
Im ersten Teil der Arbeit wurden die BbD Ansätze des targeted und non-targeted Re-Designs und de novo Designs, sowie die Verwendung von in silico Tools zu deren Umsetzung, untersucht. Basierend darauf wurde ein Workflow entwickelt, der eine mögliche Verwendung von computergestützten Methoden innerhalb des BbD Frameworks aufzeigt. In der resultierenden Veröffentlichung wurde dieser Workflow vorgestellt und dessen Chancen und Limitierungen für die Umsetzung des BbD beleuchtet. Die herausgearbeiteten BbD Ansätze bildeten die Grundlage für das folgende targeted und non-targeted Design von Fluorchinolonen.
Der Ansatz des non-targeted Re-Designs wurde für neun verschiedene Substanzen aus der Klasse der Fluorchinolone angewandt. Dafür wurden Transformationsprodukte der Muttersubstanzen mittels Photolyse und Photokatalyse erzeugt. Das resultierende Substanzgemisch wurde hinsichtlich der biologischen Abbaubarkeit und Toxizität untersucht. Dabei konnte gezeigt werden, dass durch die Bestrahlung mit UV-Licht eine Vielzahl an neuen Strukturen entstehen und das Gemisch oft eine gesteigerte biologische Abbaubarkeit im Vergleich zur Muttersubstanz aufweist. Die Zuordnung der gemessenen Abbaueffekte zu einzelnen enthaltenen Strukturen gestaltete sich aufgrund fehlender Referenzsubstanzen und anwendbarer in silico Modelle schwierig. Es konnten daher abschließend keine eindeutig abbaubaren Derivate mit diesem Ansatz identifiziert werden. Trotzdem zeigte sich in den Untersuchungen, dass eine Hydroxylierung der Ausgangssubstanzen sehr wahrscheinlich zu einer verbesserten Abbaubarkeit dieser führt.
Das targeted Re-Design wurde am Beispiel von Fluorchinolon-Glucosamin-Derivaten untersucht. Dabei galt es zu verstehen, inwiefern Glucosamin-Substituenten die biologische Abbaubarkeit beeinflusst. Keine der untersuchten Strukturen konnte in den verwendeten OECD Tests als leicht biologisch abbaubar klassifiziert werden. Es konnte jedoch gezeigt werden, dass durch die Verwendung von acetylierten Glucosamin-Substituenten ein partieller Abbau stattfindet. Diese Erkenntnisse können zukünftig in das gezielte, fragment-basierte Design von grüneren Strukturen einfließen.
Im letzten Teil der Arbeit wurden die Struktur-Bioabbau-Beziehungen von N-hetero-zyklischen Verbindungen, welche auch die Basis des Fluorchinolon-Grundgerüstes sind, untersucht und leicht biologisch abbaubare Leitstrukturen identifiziert. Dafür wurden 84 verschiedene N-Heterozyklen nach OECD 301 Richtlinien getestet. Basierend darauf wurde zum einen ein lokales 3D-QSAR Modell, insbesondere zur Visualisierung der Effekte der Substituenten im dreidimensionalen Raum, erstellt, als auch Regeln für das Design von umweltfreundlicheren Chinolonen und verwandten Strukturen abgeleitet. Weiterhin wurden abbaubare Strukturen aus der Gruppe der Chinazoline identifiziert, welche vielversprechende Leitstrukturen für das Design von Topoisomerase-Inhibitoren oder anderer Chemikalien darstellen.
Die Diskussion der verschiedenen Ansätze, die Entwicklung eines in silico Workflows, sowie die Machbarkeitsstudien am Beispiel von Fluorchinolonen haben demonstriert, dass die Umsetzung von BbD im Wirkstoffdesign möglich ist und wie potentielle Vorgehensweisen aussehen können. Dabei konnte gezeigt werden, dass selbst die als besonders persistent geltenden Fluorchinolonantibiotika das Potential bieten, zu besser abbaubaren Derivaten re-designt zu werden. Es wurde jedoch auch deutlich, dass es keine allgemeingültige Herangehensweise gibt und Methoden den entsprechenden Substanzklassen und Anforderungen angepasst werden müssen. Daher ist es wichtig die vorgestellten BbD Ansätze zukünftig weiter hinsichtlich ihrer Übertragbarkeit auf weitere Substanzklassen zu untersuchen. In diesem Zusammenhang ist es ebenfalls wichtig, experimentelle Bioabbaudaten von weiteren Strukturen zu generieren, um vorhandene Bioabbau-Modelle hinsichtlich ihrer Anwendungsdomäne zu verbessern und für das Design von grünen Wirkstoffen zu nutzen.
Motivation: Artificial intelligence, most prominently in the form of machine learning, is shaping up to be one of the most transformational technologies of the 21st century. Auditors are among the professions forecasted to be the most affected by artificial intelligence, as the profession encompasses many highly structured and repetitive tasks. Automating such tasks would naturally increase the efficiency of financial statement audits. By allowing auditors to focus on higher value-added tasks, and the capability to analyze large volumes of data at a fracture of the time a human would need, artificial intelligence would also benefit the effectiveness of auditing. Despite these benefits, to this day, the actual adoption of artificial intelligence in the audit domain remains rather limited. The audit profession is highly regulated and has to consider requirements regarding, e.g. the application of professional standards, codes of conduct, and data protection obligations. Hence, the question arises of how audit firms can be supported in their efforts to adopt artificial intelligence and how machine learning systems can be designed to comply with the specific demands of the audit domain.
Research Approach: The goal of this dissertation is to better understand the adoption of artificial intelligence in the audit domain and to actively support the adoption of artificial intelligence in auditing based on this understanding. To this end, we employ a mixture of research methods. On the one hand, the research presented here adopts a qualitative approach, examining the adoption of artificial intelligence and other advanced analytical technologies of the audit domain through taxonomy development and grounded theory. The findings of these studies inspire the second stream of work within this dissertation, which adopts a quantitative and design-oriented approach: It focuses on using machine learning to extract information from invoices for tests of details. Tests of details are essential substantive audit procedures used in nearly every audit. This dissertation proposes a new machine learning model architecture for information extraction from invoices, compares different machine learning models, and proposes design principles for machine learning pipelines for an audit application addressing the test of details through action design research.
Contribution: This dissertation presents several contributions to the research on the adoption of artificial intelligence in auditing. To form an initial understanding of the problem environment around the application of artificial intelligence to auditing, we developed a taxonomy. The taxonomy integrates the audit and technology perspective in a structured manner and supports the description of use cases in the audit domain. The dissertation further presents a process theory that illustrates how audit firms adopt artificial intelligence and other advanced data analytics technologies. The study uses a previously unused theoretical perspective, which allows for contextualizing known technology adoption factors in the audit domain. Based on the understanding of the problem environment obtained through the taxonomy and process theory, we engaged in developing artifacts and methods for applying information extraction from invoices. Here, we offer the first contribution by developing a novel graph-based neural network architecture and showing its ability to extract information accurately from invoice data sets with a significant layout variance. The second contribution deepens the understanding of the effects of layout distributions on the generalization ability of neural networks: We compared different model types and disaggregated the evaluation into in-sample and out-of- sample layouts. We show that the gap in accuracy between in- and out-of-sample layouts varies across models. To arrive at these results, we developed an end-to-end machine learning pipeline. As part of the last contribution of this dissertation, we automatically orchestrated this pipeline which serves as a structured approach to evaluate and deploy machine learning models for information extraction from invoices. We designed it such that new models from the continuously flowing stream of research are easily integrated. By reflecting on the genesis of the pipeline and the design choices that guided its emergence, we also propose a set of design principles for information extraction pipelines in audit tools.
Limitations: The results presented in this dissertation must be seen in the light of some limitations. First, we obtained the taxonomy’s dimensions and characteristics to describe use cases from the scientific literature. Use cases only identified in practice might not be characterized in their entirety by the taxonomy. The presented process theory is grounded in data obtained from expert interviews. Hence, the sampling of interview partners can affect its generalizability. For instance, most of our interview partners are located in Germany and take on roles in the upper management of their respective organizations. The results presented in the design-oriented studies are limited by the characteristics of the available data sets. These characteristics include the languages of the documents, which is primarily English, their quantity, and the recurring vendor layouts. Finally, we conducted the action design-oriented research within a large multinational audit firm. Hence, the requirements for the developed artifact and the proposed design principles might not be transferable to smaller firms.
Future Research: Several threads are laid out in the presented body of work that may be picked up in future research endeavors. The taxonomy could be updated to the most recent developments in artificial intelligence, such as generative and conversational systems. In the process theory, the nature of the relationship between the contextual factors and the adoption process could be explored in more detail. Concerning information extraction for the test of details, future research could explore how the extraction results could be parsed into standardized formats or how they could be internally validated. Larger audit firms have clients from a variety of countries, which begs the question of whether language-specific models or multilingual models are better. In this context, the need for labeled training data poses a challenge for adapting models to different languages. Therefore, future inquiries could explore how the utilization of training paradigms such as active learning to reduce the need for labeled training data.
Since its establishment, the African Union (AU) has assumed an important role in matters of peace and security on the continent. This doctoral dissertation is dedicated to its conflict and crisis interventions and seeks to identify as well as subsequently explain the broader patterns that have emerged. The dissertation posits that neither the AU’s regime-serving roots, which emphasize the primacy of incumbents’ parochial interests, nor the AU’s problem-solving commitment, which emphasizes the pursuit of its declared organizational mission, can convincingly explain these patterns on their own. Instead, we should understand the AU as being driven by two different logics of cooperation at the same time: a problem-solving and a regime-serving logic. Across its three constitutive articles, the dissertation makes empirical as well as theoretical contributions to the existing literature. Empirically, it offers a broad and systematic analysis of AU interventions over time, across different intervention types, and without bias towards high-profile cases. The novel dataset, on which the dissertation builds, constitutes the hitherto most comprehensive effort to capture the AU’s responses to crises and conflicts. Theoretically, the dissertation develops a set of testable theory-driven expectations based on the notion of two different logics of cooperation. While identifiable in the literature on the AU and linking to broader existing debates on international cooperation, the dissertation breaks ground by clearly outlining the implications of each logic and bringing them together under a single theoretical framework. Jointly, the articles provided strong evidence that the AU is indeed driven by both a problem-solving and a regime-serving logic of cooperation, and that this serves as the foundation for explaining the AU’s broader intervention patterns. This contributes not only to a better understanding of AU interventions but also has a chance to enrich other important debates, including the debates on African regionalism, comparative regionalism, and multilateral interventions.