E-Dissertationen: Browsing E-Dissertationen by Title
Now showing items 1264-1283 of 4162
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Evolution of floral organisation and architecture in Boraginales and Geraniales
Jeiter, Julius (2020-08-13)In this thesis, development, morphology and anatomy of structures from selected taxa from the Gera- niales and Boraginales are studied. Furthermore, the integration of structures such as stamen-corolla tube modifications ... -
The evolution of low-metallicity massive stars
Szécsi, Dorottya (2016-08-11)Massive star evolution taking place in astrophysical environments consisting almost entirely of hydrogen and helium – in other words, low-metallicity environments – is responsible for some of the most intriguing and energetic ... -
Evolution of mafic rock-types of the Kolvitsa Complex, Kola Peninsula (Russia): Implications for the metamorphic evolution of the Kolvitsa Belt and characterisation of related fluid-rock interactions
Ecke, Nicol Susann (2005)Within the Lapland-Kola Orogen, situated in the north-eastern Baltic Shield, the Kolvitsa-Umba Belt forms part of a major suture zone. Remnants of this important Svecofennian collision zone separating the Late Archaean ... -
The evolution of massive stars in the Small Magellanic Cloud
Schootemeijer, Abel (2019-03-27)Massive stars in the early universe are born with only a small amount of heavy elements (or, 'metals’). These metal-poor massive stars played a crucial role in shaping the galaxies in the early universe. They are also the ... -
Evolution of Sacoglossa (Opisthobranchia) with emphasis on their food (Ulvophyceae) and the ability to incorporate kleptoplasts
Händeler, Katharina (2011-03-11)Sacoglossa (Gastropoda) feed mainly on siphonous or siphonocladous green algae and are well-known for their ability to incorporate kleptoplasts from their food algae (Ulvophyceae). Some sacoglossans are capable of a ... -
Evolution of short-period massive binary stars in the Magellanic Clouds
Sen, Koushik (2022-10-14)Massive stars tend to form in close binaries that will interact during their lifetime. Up to one-third of them are so close that they undergo mass transfer during hydrogen burning and yield most of the observable ... -
Evolution of the Activity Cliff Concept and Practical Implications for Compound Design
Hu, Huabin (2021-07-22)Entering the “big data” era, a number of different research areas have witnessed an enormous increase in data at an exponential rate. For drug discovery, various publicly available protein structure and compound bioactivity ... -
Evolution und Diversität von Grundelgehirnen
Gebhardt, Isabelle Claire (2022-12-12)Das Gehirn stellt das komplexeste Organ dar. Es interagiert mit der Umwelt und steuert das Verhalten, wodurch es eine zentrale Rolle bei der Evolution und Anpassung von Arten erhält. Hier stellen die Fische eine einmalige ... -
Evolutionary history of Southern Arabian faunal elements with a special focus on habitat fragmentation of two model organisms, Reissita simonyi (REBEL, 1899; Lepidoptera: Zygaenidae) and Hyla savignyi (AUDOUIN, 1827; Amphibia: Hylidae)
Klütsch, Cornelya F. C. (2006)Habitat fragmentation is assumed to be one of the major factors for genetic separation of populations. Natural fragmentation of habitats may be caused by climatic changes and their consequences (e. g. desertification), as ... -
Evolutionsstadien der Kaufunktionen früher Artiodactyla
Schwermann, Leonie C. (2016-09-13)Ein differenziertes Gebiss mit spezialisierten Molaren und deren Mastikation sind Merkmale der Säugetiere. Besonders die postcanine Bezahnung zeigt spezifische Anpassungen an eine effiziente Zerkleinerung der jeweiligen ... -
Ex-vivo Generierung von neutrophilen Zellen zur Prävention und Therapie der Sepsis
Herbold, Ralf Friedrich (2005)Neutrophile Granulozyten stellen das zentrale Element der angeborenen Immunität gegen mikrobielle Infektionen des Körpers dar. Ein Versagen dieses Systems führt zu systemischen Infektionen, begleitet von der lebensbedrohlichen ... -
Examining the Retention and Digestion of Functional Kleptoplasts in Solar-Powered Sea Slugs
Jerschabek Laetz, Elise Marie (2018-01-18)Sacoglossan sea slugs are the only metazoans known to sequester and retain functional chloroplasts within their digestive gland tubules, a process known as functional kleptoplasty. This ability coincides with the capacity ... -
Example-Based Urban Modeling
Hartmann, Stefan Michael (2018-09-26)The manual modeling of virtual cities or suburban regions is an extremely time-consuming task, which expects expert knowledge of different fields. Existing modeling tool-sets have a steep learning curve and may need special ... -
Exclusive Production of J/ψ Mesons in the ZEUS Detector
Tandler, Joachim (2003)Exclusive J/ψ production has been studied using the ZEUS detector at HERA. Two ranges of the photon virtuality, Q<sup>2</sup> < 1 GeV<sup>2</sup> and 0.15 < Q<sup>2</sup> < 0.8 GeV<sup>2</sup> are examined. The latter is ... -
Expanding the toolbox of modified nucleobases and click chemistry for investigations on non-coding RNA
Domnick, Christof (2019-05-20)Non-coding ribonucleic acid (RNA) consists of highly structured molecules whose arrangement and function can be investigated using different chemical labeling approaches. Contemporary labeling techniques show restrictions ... -
Expanding the understanding of peptidoglycan turnover in Chlamydiae: biosynthesis, degradation and recycling
Reuter, Jula (2023-03-29)The obligate intracellular chlamydiae evolved mechanisms to persist inside their host and to evade the host immune system, making them intriguing and highly successful pathogens. This work aimed to asses how these strategies ... -
Experimental and numerical description of rapid granular flows and some baseline constraints for simulating 3-dimensional granular flow dynamics
Kröner, Christian (2014-07-25)Accurate prediction of rapid granular flow behavior is essential to optimize protection measures from hazardous natural granular flows like snow avalanches and landslides and to design efficient production facilities for ... -
Experimental and numerical studies on solute transport in unsaturated heterogeneous porous media under evaporation conditions
Bechtold, Michel (2012-08-31)Groundwater level rise, root water uptake, or evaporation induces local upward water and solute fluxes in soils, causing soil salinization and rise of contaminants to the soil surface, and influencing the migration of ... -
Experimental and theoretical studies of mononuclear high-valent nitrido-iron and oxo-iron complexes
Krahe, Oliver Moritz (2016-05-12)Nitrido-iron and oxo-iron complexes are important species in manifold biological and industrial processes. While nitrido-iron complexes are intermediates in biological and industrial nitrogen fixation, oxo-iron complexes ... -
Experimental Near-Field Characterization of Plasmonic Nanostructures
Prämassing, Mike (2021-01-13)The spatial resolution of conventional optical technologies is fundamentally limited by diffraction due to the wave nature of light. A promising platform to overcome this diffraction limit in nanophotonic applications is ...