The Faculty of Mathematics and Natural Sciences: Mathematisch-Naturwissenschaftliche Fakultät: Recent submissions
Now showing items 801-820 of 5008
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Response properties of open shell molecules and their application in studies of electron paramagnetic resonance parameters
(2023-11-20)The synergy of experimental and theoretical investigations is highly powerful and is therefore utilized to gain a deeper understanding of (bio)chemical processes. Especially, molecular spectroscopy provides detailed ... -
Practical Models for Sequential Decision Making in Natural Language Processing and Reinforcement Learning
(2023-11-17)This thesis focuses on <em>sequential decision and prediction</em> (SDP) tasks, comprising structured prediction (SP) and reinforcement learning (RL) tasks. These tasks are characterized by generation of sequential outputs ... -
Synthesis, reactions and redox properties of 1,4-dihydro-1,4-diphosphinines and related P/Si- and P/Ge-compounds
(2023-11-16)This Ph.D. thesis describes the P-centered as well as other heteroatom-centered reactions of mixed-atom heterocyclic compounds. <br> Initially, the synthesis of the anionic imidazole-2-thione-fused 1,4-dihydro-1,4-diphosphinines ... -
Informed Machine Learning: Integrating Prior Knowledge into Data-Driven Learning Systems
(2023-11-14)Machine Learning is an important method in Artificial Intelligence (AI). It has shown great success in building models for tasks like prediction or image recognition by learning from patterns in large amounts of data. ... -
Organic-Inorganic Hybrids and Charge Transfer Salts with N-Methylpyridoneazine and its Derivatives
(2023-11-13)The pyridone azine N-methylpyridoneazine (MPA, 1) is electron-rich and a planar organic donor molecule. As two-stage redox system, it can undergo two one-electron oxidation steps forming a radical cation species and an ... -
Metall-Luft Batterien: RRDE- und DEMS-Messungen zur Sauerstoffreduktion und Entwicklung in nichtwässrigen Alkali- und Erdalkali-haltigen Elektrolyten
(2023-11-09)Bei der Sauerstoffreduktion und -entwicklung im Na<sup>+</sup>/DMSO und im Li<sup>+</sup>-Na<sup>+</sup> Mischelektrolyten sind die Elektrodenmaterialien Pt und Au verwendet worden. In reinem Na<sup>+</sup>-Elektrolyten ... -
New Insights into Terpene Synthase Catalysis for Rational Enzyme Engineering
(2023-11-07)This doctoral dissertation consists of 4 reviews and 16 research articles that present mechanistic studies on terpene biosynthesis. Specifically, sesquiterpenes biosynthetically derived from germacrene A, hedycaryol and ... -
Assimilation of 3D Polarimetric Microphysical Retrievals with an Ensemble Kalman Filter in Germany
(2023-11-06)Accurate quantitative precipitation forecasts (QPF) by numerical weather prediction (NWP) models are and remain of high societal interest, especially in times of global warming, which causes an increasing frequency and ... -
Implementation of a high throughput screening assay to identify and characterize insecticides acting on ion channels
(2023-11-03)With 800 million people suffering from hunger, new innovative crop protection products are required to ensure food supply and stop hunger. The voltage-sensitive sodium channel (VSSC) was shown to be a safe and effective ... -
Investigating Graph Representation Learning Methods For Link Prediction in Knowledge Graphs
(2023-11-03)Knowledge Graphs (KGs) have become a fundamental approach to represent structured data and are employed in academic and industrial applications. KGs are used in various machine learning applications, such as question ... -
Study of random Schrödinger operators away from the standard Anderson model: correlations and non-locality
(2023-10-31)This thesis focuses on the investigation of two distinct variations of the Anderson model, where we relax the standard assumptions. In the first half of our study, we investigate a version of the Anderson model on the ... -
Integrated structural biology investigation of the bacterial TRAP transporter SiaPQM from pathogenic bacteria
(2023-10-31)Sialic acid is utilized by human pathogens like <em>Vibrio cholerae</em> in various ways to colonize the host. Upon contamination it scavenges the sialic acid from mucus-rich parts of the body such as the gut and causes ... -
Geometry of spaces with a synthetic lower curvature bound
(2023-10-30)In recent years, several major breakthroughs in the field of geometry have been closely linked to the investigation of two pivotal topics: curvature and singularities. The objective of this thesis is to explore the geometric ... -
Fossil record and new aspects of evolutionary history of Calcium biomineralization and plant waxes in fossil leaves
(2023-10-30)Calcium oxalate (CaOx) is one of the most common bio-minerals in extant plants. It plays a major role in a better understanding of plant taphonomy, environmental effects and evolution of calcium minerals in fossil plants. ... -
Lokalisation des mechanisch regulierten Cochaperons BAG3 und ausgewählter Bindepartner in Muskelzellen
(2023-10-24)Zur Erhaltung der Proteostase und somit der Funktionsfähigkeit kontraktiler Muskelzellen ist die zelluläre Maschinerie um das Protein BAG3 von besonderer Bedeutung. BAG3 stellt eine Kernkomponente der CASA, einer Form der ... -
A PEL type Igusa stack and the p-adic geometry of Shimrua varieties
(2023-10-17)Let (<em>G</em>, <em>X</em>) be a PEL-Shimura datum of type AC in Kottwitz's classification. Assume <em>G</em><sub>ℚ<sub><em>p</em></sub></sub> is unramified. We show in this thesis that the good reduction locus of ... -
Detection of bacterial contaminations in platelet concentrates using Raman spectroscopy and flow cytometry
(2023-10-17)Transfusion of contaminated platelet concentrates (PC) implicates the risk of systemic infections leading to fatal sepsis, due to ideal growth conditions for bacteria during storage. Despite that, microbiological testing ... -
The dense interstellar medium and star formation across the nearby galaxies NGC 3627 and NGC 253
(2023-10-11)The star formation process is an essential aspect of galaxy evolution. Observations of star-forming regions from sub-pc to kpc scales revealed a tight correlation between star formation and the emission of high-critical ... -
The formation mechanisms of classical emission line stars
(2023-10-10)Classical emission line stars are known fast rotators hosting a decretion disc in which emission lines are formed. Since their discovery in 1866, the formation mechanism of this class of stars has proved difficult to ... -
Climate variability and change in the Altai-Dzungarian region and its hydrological impact
(2023-10-09)The Altai Mountains and also other mountainous areas of Central Asia experienced intermittent cold periods during the 20th-century warming of the Northern Hemisphere. Since the recent cold period in the 1980s, subsequent ...
