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Dissertation
Behaviour Study of Grouted Connection for Offshore Wind Turbine Structures with Brittle Cement Based Grouts
(2020)
Researches show that the energy demand in the world is significantly increasing and climate change becomes a problematic issue, therefore, the interest in renewable energy is growing extremely fast. Offshore wind energy is one of the most effective renewable sources in Europe and other places in the world. One of the most important parts in the offshore foundation is the grouted connection as it is the first element to be designed in the design of the foundation structure of an offshore wind turbine because the ...
Dissertation
Crowd-Based Entrepreneurship
(2020)
The aim of this dissertation is to explore the innovation potential of crowdsourcing for entrepreneurship. The main focus is to discover how crowd-based infrastructures (i. e., crowdsourcing platforms and crowdfunding platforms) can support entrepreneurs in their innovation activities and how this new paradigm can be used to generate value for customers as well as actors of entrepreneurial ecosystems. The results of the dissertation show that crowdsourcing offers numerous opportunities to support entrepreneurs in ...
Dissertation
On the Cooperation of Groups in Social Dilemmas
(2020)
Die Menschheit steht vor zahlreichen Umweltproblemen wie dem Klimawandel, Luft- und Wasserverschmutzung, Biodiversitätsverlust und der Übernutzung natürlicher Ressourcen. All diese Probleme haben gemein, dass sie soziale Dilemmata darstellen und nur durch die Kooperation großer Gruppen gelöst werden können. Diese Dissertation bietet eine Analyse zur Kooperation von Gruppen in vier Studien. Die Arbeit besteht aus zwei Teilen. In Teil I werden zwei Laborexperimente präsentiert, in denen Entscheidungen von Individuen ...
Dissertation
Investigation of the functional synergy and involvement of different tRNA modifications in translational control
(2020-07-02)
Transfer RNAs are essential adapter molecules employed in the translational process and are highly modified all over their structure. Specific modification of the four canonical ribonucleotides (A, U, C, G) is accomplished by various proteins and/or protein complexes, ranging from simple isomerisations (e.g. Ψ) and methylations (e.g. m5C) up to complex chemical structures (e.g. mcm5s2U, ct6A). The functions of tRNA modifications are linked to the specific position and may influence translation by supporting the native ...
Dissertation
A new perspective to strongly-interacting lattice fermions in the framework of density functional theory
(2020)
Die in dieser Arbeit formulierte Theorie betrachtet das Vielteilchenproblem wechselwirkender Fermionen auf einem Gitter aus einem neuen Blickwinkel.
Dissertation
High temperature-stable InGaAs QDs for the monolithic integration in external-cavity surface-emitting lasers
(2021)
Optically pumped vertical external-cavity surface-emitting lasers (VECSELs), also called semiconductor disk lasers (SDLs), benefit from the flexibility and versatility of the semiconductor material. With a simple cavity layout, fundamental transverse mode operation with a circular output beam and high beam quality is possible. They have excellent heat-sink properties and only require inexpensive multimode diode lasers for pumping. The complete VECSEL structure is only a few micrometers thick which leads to a strong ...
Dissertation
Antecedents, Interpretations and Consequences of Strategic Change: A Business Model Perspective
(2020-10-15)
Firms increasingly face challenges caused by changes in their environment like shifts in custom-er preferences, the development of new (digital) technologies, or threats by new, disruptive business models (BM). Firm survival and achieving long-term success often require a firm’s reaction to these challenges. Therefore, firms mostly engage in and initiate strategic change like business model innovation (BMI), a dynamic process that alters strategies, structures, and iden-tities and involves various actors. Due to the ...
Dissertation
Process optimisation and development of non-invasive monitoring approaches for the drying of apples
(2020)
Drying is of great importance particularly in the field of preserving agricultural products. It plays a very critical role by delivering nutrient rich products with a long shelf-life as well as help to combat food loss. Drying processing techniques have changed and improved significantly over time, helping to ensure food abundance in both aesthetical and nutritional regards. Convective hot air drying is one of the most common technique practiced by 85 % of industries. It can be easily applied in the remote areas of ...
Dissertation
Responses of Arnica montana L. and montane Nardus grasslands to climate change in Central German Uplands
(2022-02)
Species-rich montane Nardus grasslands and their characteristic and highly valued plant species arnica (Arnica montana L.) are two elements of low-intensively-used, species-rich mountain grassland in Central German Uplands. In times of present and future global change, new stressors, like those related to climate change, will come into action, and are predicted to lead to a further decline of Arnica montana and Nardus grasslands. This is of specific concern in lower mountain ranges, where species and habitats are ...
Dissertation
(Weiter-)Entwicklung sozialer und personaler Kompetenzen bei angehenden Lehrer*innen als Grundlage für die Gestaltung wertschätzender pädagogischer Beziehungen
(2021)
Die vorliegende Dissertation leistet einen Beitrag für die Lehrerbildung und die Professionalisierungsforschung. Im Rahmen der „Qualitätsoffensive Lehrerbildung“, die von Bund und Ländern mit Mitteln des Bundesministeriums für Bildung und Forschung unter dem Förderkennzeichen 01JA1505 gefördert wurde, wurde an der Universität Kassel das Seminar „Inklusive pädagogische Beziehungen“ für Studierende des Grundschullehramts entwickelt, durchgeführt und evaluiert. Unter der Annahme, dass eine wertschätzende Haltung, Empathie ...