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Dissertation
A critical assessment of opportunities and challenges from Blockchain adoption in supply chain management
(2024)
This dissertation explores the role of blockchain technology within the domain of supply chain management. The research navigates the promising and rapidly evolving landscape of blockchain technology, marked by ongoing challenges and supply chain developments. The study comprises four distinct yet interlinked examinations, each focusing on specific aspects of blockchain application in supply chain management, encompassing traceability, transaction costs, digital freight information, and the inherent tensions in ...
Aufsatz
UV Surface Treatment of Polycarbonate for Adhesion Improvement to Liquid Silicone Rubber (LSR)
(2018)
The adhesion of self-adhesive liquid silicone rubbers to thermoplasts is only possible for a few selected material combinations without a surface pretreatment. A UV pretreatment is effective for polycarbonate and short irradiation periods are sufficient. To clarify the required irradiation conditions that result in an improvement of adhesion, the varying irradiation conditions were assessed. FTIR-ATR spectroscopy was used for surface analysis to characterize the change in the polymer surface.
Aufsatz
Textile Waste Becomes Plastic Composites
(2023-09)
Every year, large quantities of textiles end up in landfills or in thermal recycling. However, some of this waste could also serve as raw materials for composite materials. Left-over cotton fibers of the textile industry, for example, are suitable as reinforcing fibers that enhance the mechanical properties of bio-based plastics. By using such waste streams, materials can be reinforced in a cost-effective and bio-based way in the future.
Dissertation
Analysis on Successful Project Completion in Reward-based Crowdfunding
(2023-10)
Project creators often encounter difficulties when trying to secure funding. This is primarily because traditional investors view projects as lacking equity, not attractive enough and carrying high risks. However, with the advent of Web 2.0 crowdfunding has emerged as an alternative financing option in recent years. While crowdfunding continues to foster innovation and creativity the success rate of reward-based crowdfunding campaigns is often below 50%. Consequently, project creators are actively seeking solutions ...
Dissertation
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On the Path to Professionalization in Coaching: From Coaches' Attitudes for Participating in Coaching Research to Improving Coachees' Reflective Capacity
(2024)
This dissertation aims to advance the professionalization of coaching by advancing coaching research. It does this by meeting the demand for methodological grounding and examining coaches' motives for participating in coaching research, thereby contributing to the generation of larger and more-realistic samples (Study 1), by conducting theory-driven research based on psychotherapy research, and by using an observer-based method to evaluate behavioral data (Study 2). At the same time, it contributes to improving the ...
Dissertation
Experimental analyses of individual sustainable choices
(2023)
This dissertation complements the aforementioned studies by considering choice and allocation experiments which allow to directly examine how individuals choose between sustainable prod-ucts and their conventional counterparts. It particularly examines how different experimental designs and interventions causally affect choices between sustainable electricity contracts and investments over their conventional counterparts and provides guidance on how to analyze these choices using a Monte Carlo experiment.
Dissertation
Risk management and sustainability performance in circular supply chains
(2022-09)
This dissertation analyzes supply chain risk management (SCRM) and sustainability performance in the context of circular supply chains (CSCs). The implementation of circular economy (CE) thinking in firms and supply chains has a crucial role in fostering innovative and efficient ways of producing and consuming. However, CE implementation is not a straightforward process, begetting risks and uncertainties that can impact the overall sustainability performance of CSCs. Therefore, managers need to adopt appropriate ...
Dissertation
Functional characterization of disease-associated mutations in type I cGMP-dependent protein kinase
(2022-08)
Cardiovascular diseases are the leading cause of death worldwide, and while mainly associated with behavioral risk factors, they can also be linked to genetic disorders. The cGMP-dependent protein kinase type I (PKG I) plays a pivotal role in the homeostasis of the vasculature by mediating NO/cGMP-dependent relaxation of vascular smooth muscle cells. A recently described genetic risk factor associated with PKG I results in heritable thoracic aortic aneurysms and dissections (TAAD). Although PKG isoforms Iα and Iβ ...
Dissertation
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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 ...
Aufsatz
Normative and cognitive influences on female entrepreneurial reluctance at the base of the pyramid - an explorative study of cleaning ladies in Istanbul
(COMSATS, Inst. of Information Technology, 2013)
Previous research has considered entrepreneurship as a way out of poverty and as a chance to foster economic growth. Moreover, specifically start-ups headed by women have played an important role in the economic development and it has been argued that gender-related issues, amongst others, play a significant role for the performance of a country or region. Against this background, this qualitative study explores desires, reluctances and constraints toward entrepreneurial activities of a comparably homogenous group ...