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Dissertation
Maßnahmen zum sozialverträglichen Wiederaufbau der zerstörten Wohngebäude in den informellen Siedlungen in Aleppo unter Würdigung historisch gewachsener Strukturen basierend auf soziokulturellen, planerischen, ökonomischen und baurechtlichen Aspekten.
(2022)
Durch den Bürgerkrieg wurden Teile im Osten Aleppos und insbesondere die sogenannten informellen Siedlungen, die einen Beitrag zur Wohnraumversorgung für etwa 1,00 bis 1,25 Mio. Menschen in Aleppo geleistet haben, am stärksten zerstört. Diese Zerstörungen stellen den Ausgangspunkt der vorliegenden Arbeit dar. Im Vergleich zum modernen Westen Aleppos, in dem freigestellte, zu Blöcken geordnete Mehrfamilienhäuser das Straßenbild bestimmen, sind die informellen Siedlungen als selbstorganisierte Siedlungen im Ostteil ...
Dissertation
Finite Element Simulations for the Design of Therapeutic Approaches for Retinal Diseases
(2022)
The retinal disease age-related macular degeneration is the most common cause of vision loss in industrialized countries. In this thesis, motivated by the drug (antibody) treatment of this disease, we designed long-term three dimensional Finite Element simulations of the drug distribution in the healthy human eye. The underlying model consists of a time-dependent convection-diffusion equation coupled to a stationary Darcy equation describing the flow of the aqueous humor through the vitreous medium. We replaced the ...
Dissertation
Conputational Linguistic Approach to Implicit Sentiment Analysis: Politeness and Sentiment Interaction
(2022)
Sentiment analysis is a hot topic in many research fields such as linguistics, computer science and marketing. With the development of technology, machines can reach very high performance on explicit sentiment analysis both sentence-level and aspect-level. The role of computational linguists has also changed from handcrafting scoring rules to guide training data annotation as the algorithms are developed from rule-based scoring to deep learning models that can extract language features themselves. Moreover, research ...
Dissertation
Multifinalität von Verlust- und Trennungserfahrungen in der frühen Adoleszenz
(2022)
Zahlreiche Erkenntnisse aus den bisherigen Untersuchungen zu den langfristigen Auswirkungen einer Scheidung auf die Kinder konvergieren in der Einsicht, dass eine elterliche Trennung mit negativen psychosozialen Folgen einhergehen kann, dies jedoch nicht zwangsläufig muss. Ein einheitliches Muster von Scheidungsfolgen konnte bisher nicht gefunden werden. So zeigten bisherige Studien, dass die individuellen Trennungsverläufe und die damit einhergehenden Stressoren aber auch Ressourcen der Kinder und Familien die ...
Dissertation
Exploring risk and sustainability performance in base of the pyramid supply chains
(2022-07)
In the contemporary business world, the real competition is not among individual businesses but rather between supply chains. Companies, which are part of efficient supply chains, are considered destined to outperform their competitors being part of inefficient supply chains. Moreover, performance has been a matter of concern for researchers for decades and is the primary aim of any firm’s existence. The definition of performance includes the performance measurement (PM) concept and further supports the notion that ...
Dissertation
Diffusion of Material Flow Cost Accounting and its Contribution to Sustainable Development
(2022)
This thesis aims to analyze how further take-up of Material Flow Cost Accounting (MFCA) in practice can be encouraged to support sustainable development. To achieve the aim of the thesis, three studies on MFCA are conducted at multiple levels. The first study provides a better understanding of MFCA application at the corporate level in developing countries, which are characterized by rapid structure transformation leading to serious environmental problems. The second study considers the contextual and transformational ...
Dissertation
Assessment of the variation of marbling and intramuscular fat content of beef, and validation of possible factors to increase sensory beef quality
(2021-11)
This thesis focuses on the intramuscular fat content (IMF) or the marbling of beef as main parameters of sensory beef quality. The aim is to identify the high variability of these traits and to verify possible influences such as genetics, age, gender and feeding strategies to increase marbling.
The first part of this research focuses on the variation of quality traits within a genetically homogeneous line of an endangered German beef cattle breed “Rotes Höhenvieh” (RHV). The intramuscular fat content of beef samples ...
Dissertation
Bewertung von Eigenspannungen nach dem Laserstrahlhärten von komplex geformten Komponenten und additiv gefertigten Bauteilen
(2021)
Die Laserstrahlbearbeitung hat sich im Laufe der letzten Jahre zu einem wichtigen Forschungsschwerpunkt in industrieller und akademischer Hinsicht entwickelt. Neben der Erschließung neuer Anwendungsgebiete durch den Vorteil einer hohen Bearbeitungsflexibilität überzeugt die laserbasierte Materialbearbeitung vor allem durch einen lokal beeinflussbaren Energieeintrag. Jedoch sind derzeit mit zunehmender geometrischer Komplexität und Bauteilgröße nur begrenzte Tiefenwirkungen der gewünschten Druckeigenspannungen ...
Dissertation
Community-Based Associations and Rural Development in Rwanda: A Local Perspective on the Contribution of Social Capital to Human Capabilities
(2022)
The post-World War II political discourse around development has stimulated academic debates in recent decades. While some of these debates simply aim to transform the development mainstream, many others among the post-colonial thinkers are more critical of and even reject mainstream development ideologies. Despite the valuable academic debates, most development practitioners seem to have remained unresponsive to some of the allegations. Their concept is incorporated in much of the contemporary political narratives ...
Dissertation
Generalized Involutive Bases and Their Induced Free Resolutions
(2022-05)
In this thesis, we generalize several types of involutive and marked bases for ideals in quotient rings of commutative polynomial rings. We apply these new types of bases to the analysis of infinite free resolutions and of Hilbert schemes defined over certain types of quotient rings. We are mostly concerned with Pommaret and Janet bases; the marked bases we consider are marked over monomial submodules that are quasi-stable, i.e., that possess finite Pommaret bases.
Involutive bases of the types we consider induce ...