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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
Darstellung, Eigenschaften und Reaktivität phosphorreicher Ferrocenophane
(2022-05)
Im Rahmen dieser Arbeit wurde ein präparativer Zugang zu phosphorreichen Ferrocenophanen entwickelt, die Substituenten mit variierenden sterischen und elektronischen Eigenschaften tra-gen und die Reaktivität dieser gegenüber Elektrophilen untersucht.
Die Reaktivitätsuntersuchungen des als Modellverbindung ausgewählten Diphospha-[2]fer-rocenophans L6a gegenüber Elektrophilen haben gezeigt, dass sowohl ein als auch beide Phos-phoratome selektiv, durch stöchiometrische Kontrolle mit Monoboran oder unterschiedlichen ...
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
The anatomy of velvet worms (Onychophora) as revealed by a multimethodological approach and three-dimensional reconstructions
(2024)
Onychophorans, or velvet worms, comprise a small group of worm-like, multi-legged terrestrial invertebrates. Since their discovery in 1826, these organisms have been investigated from different perspectives, particularly in the field of morphology—a discipline that provides the basis for functional and evolutionary inferences. Onychophorans are currently classified within Ecdysozoa (moulting animals) and form together with Tardigrada (water bears) and Arthropoda a clade named Panarthropoda. Therefore, onychophorans ...
Dissertation
City Development Regimes in-the-Making. Phronetic Analysis of Governance, Networks and Power in Cairo, 2011-2022
(2024)
Since the revolutionary uprising of January 2011, Cairo’s inner-city neighbourhoods have undergone rapid spatial transformations. Over the last decade, numerous old housing buildings have been replaced by modern ones, leading to the displacement of residents to the desert cities or newly-constructed neighbourhoods outside the city centre. The most remarkable transformations occurred since early 2018. Notably, these changes have been characterised by a fast implementation rate and a lack of community resistance to ...
Dissertation
Testing the Impact of Large-scale Digital Support on Students' Paths Toward College Education
(2024-02)
Increasing the share of college graduates can boost productivity, promote social mobility, and improve well-being. However, these benefits are often realized when the education system satisfies the demands of the industry. Otherwise, society may face skill shortages. This thesis aims to expand the understanding of how to attract students, particularly minorities, to pursue academic majors linked to the areas facing skill shortages (henceforth, high-rewarding majors). To accomplish this, it examines the impact of ...
Dissertation
Analysis of agricultural landscape transformation and cropping system diversification in southern Myanmar
(2023)
Myanmar's forests are rich in biodiversity and have significant potential for carbon reduction. Kyunsu Township in southern Myanmar is still covered by biodiverse tropical evergreen rainforests on the highlands and mangroves on the coastline, conserving carbon stocks. However, the expansion of croplands into these forests to meet the growing demand for food and crop income is a major driver of deforestation and loss of carbon sinks. Thus, balancing agricultural land use and natural resource conservation is vital for ...