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Dissertation
The energy transition: An assessment of drivers and barriers
(2023)
Embedded in an introductory and a concluding chapter, the thesis comprises six distinct but related scientific articles. All articles contribute to a more holistic understanding of drivers and barriers of a successful energy transition. In the first part of the thesis, four articles address energy and economic efficiency in the electricity sector. These articles provide guidance for efficient regulatory policies and analyse measures seeking to increase preferences for dynamic electricity tariffs. The two articles in ...
Dissertation
Managing Risk, Performance and Sustainability in Textile & Apparel Supply Chains.
(2023)
The thesis at hand analyzes sustainability prerequisites, practices, risk and performance in textile and apparel (T&A) supply chains (SCs). Given the growing awareness of sustainability risks by various stakeholders, T&A firms are required to implement and adapt sustainability practices along their SCs, while at the same time measuring their performance to counteract the (re)emergence of risks. Appropriate management strategies are therefore needed to ensure sustainable transformation in T&A SCs. While the state of ...
Dissertation
Land tenure in a changing climate
(2023)
Climate change and extreme weather have far-reaching impacts on agriculture. They do not only affect agricultural production, but also fundamental assets that shape agricultural livelihoods. In this dissertation, I study the relation of weather and climate with agricultural land tenure in low- and middle-income countries. Secure access to land is of vital importance for farmers, but insecure tenure is a reality for millions of farmers around the globe. They are unsure whether they will be able to continue farming ...
Dissertation
Industry 4.0-driven additive manufacturing for operations in the circular economy
(2023-06)
This dissertation focuses on exploring how key elements of Industry 4.0 (I4.0), such as additive manufacturing (AM) and quantitative techniques/simulation, instigate the operations of an organisation towards the circular economy (CE). AM represents the technological foundation of future manufacturing which efficiently utilises materials avoiding unnecessary waste. Further, it could positively impact the transition towards CE by addressing issues related to the operations and supply chains while positively influencing ...
Dissertation
Managing Collaboration in Circular Supply Chains
(2023-05)
The dissertation focuses on understanding the application of the circular economy (CE) concept to the supply chain management (SCM) domain as ‘circular supply chains’ (CSCs) and the role of collaboration in this application. While CE is an emerging approach for sustainable production and consumption, its application in the SCM domain as CSCs could assist in improving the overall sustainable performance. Collaboration with internal and external partners is crucial to achieve this improvement. Hence, with the aim to ...
Dissertation
Herausforderungen bei der Analyse von Unterrichtsqualität und deren Wirkungen auf Lernende
(2023-07)
Die empirische Unterrichtsforschung stellt Forschende vor zahlreiche Herausforderungen. Eine besondere Herausforderung besteht darin, dass wissenschaftliche Ergebnisse in hohem Maße von den Entscheidungen der Forschenden im Forschungsprozess abhängen – ein informiertes Vorgehen ist für jeden Schritt guter wissenschaftlicher Forschung fundamental. Ziel der kumulativen Dissertation ist es daher, aus einer Metaperspektive theoretisch-konzeptionelle Grundlagen und forschungsmethodische Fragen der Unterrichtsforschung zu ...
Dissertation
Transforming towards a sustainable circular economy: exploring the social dimension, actor contribution and emerging paradoxes
(2023)
Pressing global societal challenges highlight organisational vulnerability and the need to transform towards more sustainable production and consumption measures. The circular economy concept is considered an alternative to the prevalent linear economic system. It aims to contribute to sustainable development by slowing and closing resource cycles and facilitating cross-sectoral collaboration of multiple stakeholders. Yet, the desired transformation is lagging behind and the current debate focuses primarily on the ...
Dissertation
The role of sustainability in capital markets
(2023)
This doctoral thesis explores capital market sustainability, focusing on the European capital market.
The work takes two different angles, either from the investors perspective while subsequently examining if reported ESG activities and an ESG rating's sustainability performance affect a company's valuation or risk.
Dissertation
Microfluidics Based 3D Printed Reconfigurable Antenna for K-Band Applications
(2023)
In dieser Arbeit werden neuartige mikrofluid-basierte, rekonfigurierbare Antennen für Mikrowellen-Anwendungen vorgestellt. Ebenfalls vorgestellt wird eine kosteneffektive Methode zur ultra-breitbandigen Erhöhung (definiert als Bandbreite von 20% oder höher als die zentrale Frequenz) des Antennengewinns basierend auf dielektrischen Linsen. Zunächst wird dabei ein fest-verdrahtetes Design entwickelt. Diese Antenne verwendet kapazitive Lasten, um die -10 dB Bandbreite um den Faktor 2.5 (+150%) zu erhöhen. Die vorgeschlagene ...
Dissertation
Removing Barriers for Integrating Dimensional Conceptualisations of Personality Disorders into Clinical Practice
(2023)
The present dissertation investigated the utility of dimensional personality disorder (PD) models for clinical practice, specifically focusing on the Alternative Model of Personality Disorders (AMPD) as implemented in the DSM-5 and the dimensional PD conceptualization in the ICD-11. The dissertation research consisted of three studies that addressed various aspects of clinical utility of dimensional PD models, including practical utility regarding assessment of the severity of personality pathology, the quantification ...