Naturwissenschaften, Mathematik und Informatik: Recent submissions
Now showing items 1-20 of 5141
-
The Verticillium dahliae Vta3 genetic network and hydrophobins are required in tomato xylem sap for plant disease
(2023-03-27)The ascomycete Verticillium dahliae is a pathogenic fungus for a variety of important crops and spends long phases of its life cycle in the vascular xylem system of particular host plants. Growth in this unique and ... -
Exoplanet Atmosphere Characterization with High-Resolution Doppler Spectroscopy
(2023-03-24)Ultra-hot Jupiters (UHJs) are a class of giant strongly irradiated exoplanets with dayside temperatures exceeding 2200 K. Due to their elevated temperatures, these objects are prime targets for atmospheric characterization ... -
Structure-based Search for novel c-di-AMP Synthase Inhibiting Fragments
(2023-03-24)One of the major threats for the global health system is the increasing number of antibiotic resistant bacterial strains. The misuse of antibiotics during the Covid pandemic aggravates these problems. Therefore, the ... -
Electrospray-Ionization Mass Spectrometry for the Analysis and Quantification of Carbanions
(2023-03-23)The suitability of ESI-MS for the analysis of carbanions was investigated, including the effects of their basicity, concentration and the experimental conditions. This was followed by exemplary applications, such as live ... -
Characterization of Leptosphaeria maculans races in Germany and studies on resistance of Brassica napus to blackleg disease
(2023-03-23)Leptosphaeria maculans, a phytopathogen causes blackleg disease, is an economically significant biotic stress that affects oilseed rape (B. napus) production worldwide. Blackleg disease can be controlled by stubble management, ... -
Method Development for Benchmarking Key Interactions in Quantum Crystallography
(2023-03-23)The thesis presents different approaches to obtain benchmarkable data from (quantum) crystallographic methods. In a first approach, it tackled structure - fluorescence relationships in anthracene derivates with a focus on ... -
New Synthetic Analogues for Biological Fe/S Clusters
(2023-03-20)Iron-sulfur (Fe/S) clusters are omnipresent and are essential components in virtually all life forms due to their versatile structures and functions. Biological systems extensively employ Fe/S clusters, especially with ... -
Microscopic foundation of the Eigenstate Thermalization Hypothesis
(2023-03-20)The Eigenstate Thermalization Hypothesis (ETH) explains how isolated quantum many-body systems thermalize by proposing that each energy eigenstate is already thermal. The hypothesis is believed to be essential to the ... -
Actin structure formation, membrane dynamics, and force generation during blood platelet spreading
(2023-03-17)Blood platelets are essential to the formation of blood clots and prevent uncontrolled bleeding. They are non-nucleated fragments of larger bone marrow cells known as megakaryocytes. Platelets undergo fast morphological ... -
Diversified Farming Systems – An evaluation of ecological benefits, economic costs & risks farmers face
(2023-03-17)Biodiversity and associated ecosystem services in cultural landscapes are declining due to increasing agricultural production. Human population growth and changing consumption patterns cause higher demands on agricultural ... -
A coronal loop in a box: From energy generation to coronal emission
(2023-03-17)The corona is the outer atmosphere of the Sun. It contains an abundance of bright arcs that consist of hot plasma trapped by the magnetic field. These coronal loops are heated to temperatures far surpassing the solar surface ... -
Cotranslational folding of HemK C-terminal domain
(2023-03-17)The correct folding of proteins is essential for the survival of the cell. Despite the importance of the question, it remains largely unclear how proteins, in particular large multidomain proteins with mixed α-helical and ... -
Mikroskopische Reaktivität Metallorganischer Spezies
(2023-03-15)In oder to better understand cross-coupling reactions, the oxidative addition between organo halides and organometallates based on iron, cobalt and copper was investigated by using ion-molecule reactions in the gas phase. ... -
Investigation of laser-induced structures on metal surfaces produced via two-beam and laser-plasmon interference
(2023-03-15)Periodic surface structures can change the properties of material surfaces. The obtained various functionalities strongly depend on the type of the specific structures. This work deals with the generation of periodic ... -
Zukünftige Anforderungen an Produktinnovationen unter Berücksichtigung globaler Megatrends am Beispiel von biofortifizierten Obst- und Gemüseprodukten
(2023-03-15)Consumer behavior analysis is an essential part of the innovation process for the new product development. Due to the increasing complexity, high-level structures can be reviewed for evaluating the framework conditions ... -
In-situ lithiation of lithium manganese oxide in a transmission electron microscope
(2023-03-15)This thesis presents in-situ studies of the lithiation of lithium manganese oxide in a transmission electron microscope. It focuses on the phase transitions from spinel to tetragonal phase and the role of defects on ... -
Electrochemical Benzylic C−H Fluorination and 4d-Metallaelectro-Catalyzed C−H and C−C Functionalizations
(2023-03-15)Direct functionalizations of C−H and C−C bonds have emerged as time-saving and cost-effective alternatives to established cross-coupling reactions. However, oxidative coupling variants require stoichiometric amounts of ... -
Ablation of cell-specific cholesterol synthesis affects cerebral β-amyloidosis
(2023-03-13)Cholesterol, an essential membrane component, among others modifies membrane fluidity and regulates cell signaling. CNS cholesterol metabolism is separated from peripheral cholesterol by specific properties of the ... -
The phoshorus and nitrogen nutrition of European beech under a future warmer and drier climate: climate chamber experiments and transect studies
(2023-03-13)Productivity of temperate forests may increasingly be limited by phosphorus (P) shortage, as indicated by decreasing P concentrations and increasing nitrogen (N):P ratios in leaves and fine roots and reports on recent ... -
The influence of temperature, nutrient availability and soil depth on root exudation in european beech forests
(2023-03-10)The availability of mineral nutrients (i.e. N, P) in unfertilized soils is often not adequate to meet plant demand, which in turn creates a necessity to fulfil the supply requirements from nutrient release from soil organic ...