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Aufsatz
In-situ full-field deformation analysis of injection-molded microcellular polycarbonate according to foam morphology patterns
(2023-06-02)
Deformation behavior of microcellular foam materials are sensitive to microstructural details. Therefore, the distinctive foam morphology patterns of foam injection-molded Polycarbonate are identified. These morphology patterns are investigated regarding their cell size, distance between cells, cell density, density reduction, homogeneity of cell size distribution, sphericity of cells and cell volume. Consequently, the predefined foam morphologies, the resulting modulus of elasticity and the elongation at break are ...
Aufsatz
Effect of storage conditions on soybean seed quality produced by smallholder farmers within two districts of Gauteng, South Africa
(2024-05-22)
Seed quality comprises of physical, physiological, and health attributes. Moreover, significant aspects of seed quality include seed viability and vigour. Maintaining good seed quality under sub-optimal storage conditions is one of the major challenges smallholder soybean farmers face. Hence, this study aimed to determine the effect of on-farm storage conditions on the seed quality of soybeans from smallholder farmers within the Gauteng Province, South Africa. The objectives of this study were to i) evaluate and ...
Aufsatz
On the low-cycle fatigue behavior of thermo-mechanically processed high-strength aluminum alloys
(2021)
In the present work low-cycle fatigue experiments were carried out on thermo-mechanically processed AA6082 and AA7075 sheets to evaluate mechanical properties under cyclic loading. Different cooling rates imposed by use of tempered forming tools after solutionizing and subsequent aging treatment led to the formation of precipitates with differing sizes and morphologies. Specimens thermo-mechanically processed in tools with temperatures of 24 °C and 200 °C showed superior mechanical properties under both monotonic and ...
Aufsatz
Influence of season and phytochemicals on the elemental composition of kobs’ diets in Old Oyo National Park, Nigeria
(2024-02-20)
Phytochemicals or plant secondary metabolites (PSMs) are known to counteract mineral nutrients (MNs) utilisation in herbivorous wildlife, yet studies on the interactions between PSMs and MNs in relation to herbivory, particularly for kobs (Kobus kob) are scarce. Composite samples of each of five major forage plants of kobs’ (Grewia mollis, Afzelia africana, Gardenia aqualla, Maranthes polyandra and Andropogon gayanus) were randomly collected in and around feeding sites of kobs in both dry and wet season. Using standard ...
Teil eines Buches
Kulturen der Mündlichkeit
(Peter Lang, 2023-02-13)
Buch
Staat und Staatlichkeit im digitalen Zeitalter
(transcript, 2023-11-01)
Wie steht es um den Staat im »digitalen Zeitalter«? Der Wandel des Staates in der Leistungsdimension und der Staatlichkeit in der Steuerungsdimension ist eher die Regel als eine Ausnahme. Für die 1990er-Jahre wurde er mit dem Modellwechsel vom »intervenierenden Leistungsstaat« zum »kooperativen Gewährleistungsstaat« als Transformation beschrieben. Im Angesicht der »Digitalisierung« und weiterer Megatrends zeigen sich die nächsten tiefgreifenden Wandlungsprozesse. Samuel Greef beleuchtet den neuen Mix aus Steuerungsformen ...
Working paper
Entwicklungslinien und Herausforderungen der Arbeitsbeziehungen in Deutschland und Hessen
(2024-05)
Vor dem Hintergrund der gegenwärtigen Herausforderungen der Arbeitswelt sowie den ambivalenten Befunden zur Funktionsfähigkeit der Sozialpartnerschaft setzt sich dieser Beitrag – der zur Arbeitsweltberichterstattung Hessen zählt – einerseits mit den Strukturen und Entwicklungen des spezifisch „deutschen Modells“ der Arbeitsbeziehungen auseinander. Andererseits wird danach gefragt, welchen Herausforderungen die sozialpartnerschaftlichen Akteure auf verschiedenen Ebenen gegenüberstehen und ob bzw. wie es ihnen bisher ...
Dissertation
Biochemical Characterization of Microtubule-Associated Serine/Threonine Kinases
(2023)
The association of human microtubule-associated serine/threonine (MAST) kinases with different diseases, such as neurodevelopmental disorders and cancer, leads to hight interest in understanding the function of these understudied kinases. This PhD thesis provides the first consolidated biochemical analysis of three different human MAST kinases (MAST1-3) and the Drosophila melanogaster homologue drop out protein (DOP).