Browsing Naturwissenschaften, Mathematik und Informatik by Issue Date
Now showing items 1-20 of 5237
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Mathematics of Biomolecular Structure Experiments
(2023-09-29)One of the main objectives of structural biology is to understand the complicated three-dimensional structure of biomolecules, and thus provide meaningful links between structure and functionality. There is a wide range ... -
Automated aberration correction for STED microscopy
(2023-09-26)Stimulated emission depletion (STED) microscopy is a powerful super resolution fluorescence microscopy technique that surpasses the diffraction limit. However, the performance of a STED microscope can be adversely ... -
Effects of agri-environmental measures in intensively managed farmland on the soil seed bank, butterflies and carabid beetles in Germany - Influence of local conditions and surrounding landscape on biodiversity
(2023-09-26)Monitoring of the soil seed bank, butterflies, and carabid beetles, representing different trophic groups, provides an insight into the broader effects of agri-environmental measures in intensively used arable landscapes. ... -
Morphological variation, proximity to water, comparative venom proteomics and snakebite epidemiology of the medically important Cypriot blunt-nosed viper Macrovipera lebetina lebetina
(2023-09-22)Snakes and humans are in a complex relationship. While snakes are of ecological and economic relevance as rodent predators, thus contributing to food security and public health, venomous species are also of medical importance ... -
Linking China Forest Ecology Development with Power: Cases from 1998 to 2022
(2023-09-22)Since the 1980s, China's forest area has experienced a remarkable recovery, simultaneously promoting the ecological functions of forests in biodiversity conservation and carbon sequestration. China's forest transformation ... -
Barriers of Protonation Reactions of Organometallics
(2023-09-20)Protonation reactions are entirely understood for simple organic and inorganic molecules and there are elaborated concepts to describe such acid-base reactions in both the solution and gas phase. For organometallic species, ... -
Inter-and Intraindividual Variation in Emotion Recognition: Investigating the Role of the Ovulatory Cycle, Sex, and Personality
(2023-09-18)Previous research has shown that emotion recognition varies within and between individuals, influenced by physiological and psychological factors such as hormones, biological sex, and dispositional traits. However, ... -
Twisted equivariant K-theory and equivariant T-duality
(2023-09-18)This thesis is about two things: twisted equivariant K-theory and equivariant topological T-duality. First, we prove a fixed point decomposition theorem for twisted equivariant K-theory, generalising a result of Atiyah and ... -
Improving Monte Carlo simulations in high energy physics using machine learning techniques
(2023-09-15)Monte Carlo event generators are nowadays indispensable tools for predictions based on first principles in high energy physics, and they represent one of the mainstays of particle physics research at the Large Hadron ... -
Structure Investigations of LiMn2O4 as Oxygen Evolution Reaction Catalyst
(2023-09-15)The catalytic activity of a material is determined by the electronic structure and atomic arrangements at its surface. In particular, eg occupancy of octahedral cations has been found to be a successful descriptor of the ... -
Topological charge pumping in ultracold quantum gases
(2023-09-13)A topological charge pump is a one-dimensional, dynamical analogue of a quantum Hall system that is particularly well suited for studying topology, both theoretically and experimentally, since no synthetic gauge fields are ... -
Weakly Regular Hyperbolic Boundary Value Problems of Real Type
(2023-09-11)In this thesis, we derive energy estimates for weakly regular hyperbolic boundary value problems of real type, for which the Lopatinskii condition degenerates in a specific way in the so-called hyperbolic region. Such ... -
Characterization of Npl3 as a 5'- and 3'- quality control factor
(2023-09-11)Maturation of RNA polymerase II transcripts consists of 5’-capping, splicing, cleavage and 3’-polyadenylation. These processes can generate faulty transcripts that have to be retained in the nucleus to be degraded. An mRNA ... -
Investigation of Physical and Chemical Effects in Sonicated Small Flow Channels
(2023-09-08)In the framework of intensification of chemical processes, miniature continuous flow reactors have come into focus in recent time. As a specific way of “non-classical” energy supply to the liquid in such a flow reactor, ... -
Caught between theft and rapidly rising prices
(2023-09-08)This Ph.D. Dissertation explores smallholder preferences for contract farming options in the trade of vanilla from Madagascar. It seeks to identify possibilities to increase the mutual benefit of contract farming for both ... -
Phase-Dependent Energy Dissipation Processes in La0.7Sr0.3MnO3 and (La0.6Pr0.4)0.7Ca0.3MnO3 after an Ultrashort Optical Excitation
(2023-08-31)La0.7Sr0.3MnO3 (LSMO) and (La0.6Pr0.4)0.7Ca0.3MnO3 (LPCMO) are perovsikte manganites which both show a ferromagnetic-to-paramagnetic phase transition. Interestingly, the development of the new phase when crossing the ... -
Insights into nitrogen fluxes in different dairy production systems in northwest Germany
(2023-08-31)Local nutrient surpluses are a global challenge and pose a risk for ecosystems. Nitrogen (N) is particularly important in this context, as it is a main plant nutrient and necessary for a promoted plant growth in agricultural ... -
Understanding sustainable food consumption: analysis of sustainable, plant-based dietary patterns, related food choices, and sensory acceptability
(2023-08-29)Given the impact of today’s food consumption on climate change and natural resource scarcity, as well as its impact on public health, a large-scale dietary transition is needed. A shift toward sustainable diets high in ... -
Diversity-Oriented Assembly of C-Glycosides via Late-Stage C−H Glycosylation
(2023-08-29)C-glycosides are widely distributed structural motifs found in natural products and commercially available drug molecules. Due to the stability of glycosidic C-C bonds against chemical and enzymatic hydrolysis, only ... -
Correlated phases in the vicinity of tunable van Hove singularities in Bernal bilayer graphene
(2023-08-18)The naturally occurring Bernal bilayer graphene exhibits a complex low-energy band structure hosting electric-field-controlled Lifshitz transitions and van Hove singularities. The diverging density of states is predicted ...