Browsing Naturwissenschaften, Mathematik und Informatik by Title
Now showing items 4612-4631 of 5631
-
Studies into the structural basis of the DNA uridine endonuclease activity of exonuclease III homolog Mth212
(2011-05-16)Mth212, an exonuclease III homolog from the archaeon Methanothermobacter thermoautotrophicus, compensates the lack of a DNA uracil glycosylase (UDG) in this organism by catalyzing direct ... -
Studies of the radial gradient of rotation near the solar surface
(2018-02-16)Continuous observations of solar oscillations over the last twenty years have provided an opportunity to investigate interior properties of the Sun and their variations over the last two solar cycles. In this thesis, I ... -
Studies of vegetation, fire and climate dynamics during the late Quaternary as contribution towards conservation and management of the biodiversity hotspot Mata Atlântica in southern Brazil
(2011-08-30)Nowadays, a fascinating landscape from mosaics of forest and grassland (Campos) vegetation can be seen in the highlands of southern Brazil. The different ecosystems of Campos, Araucaria ... -
Studies on Chicken Hatchability and Its Relation with Egg Yolk Metabolites
(2017-03-27)Hatchability is an important trait for the chicken industry because of its high impact on chicken output. The embryonic survival ability in fertile eggs is greatly influenced by the offspring genotype and the quality of ... -
Studies on dietary methionine efficiency and requirement in naked neck and normally feathered growing chickens
(2015-04-16)A total of five experiments were conducted with naked neck and normally feathered chickens. The experiments were conducted for the estimation of nitrogen deposition potential, modeling of methionine (Met) requirement in ... -
Studies on Expression and Function of Vsig1 Gene
(2011-03-11)The aim of this study was to determine the expression pattern of Vsig1 during testis development and analysis of the conditional Vsig1knockout mouse, transgenic Cyto-Vsig1 and Villin-Vsig1 ... -
Studies on improving phosphorus use efficiency of potato: effects on plant growth, physiology, and quality of tubers
(2021-11-18)Plants develop different strategies in response to low and high P supply. Potato has a low P use efficiency (PUE) compared to other crops, which is caused by its limited root system. Therefore, it is necessary to gain more ... -
Studies on Isolation and Identification of Clostridium botulinum Investigating Field Samples Specially from Equine Grass Sickness Cases
(2005-02-09)Isolation and identification of Clostridium botulinum from field samples obtained from: i) equine grass sickness (EGS) cases (animal and environmental samples) together with control animal ... -
Studies on mountain vegetation, plant diversity, fire and forest line dynamics of the Southeastern and Central Ecuadorian Andes during the Late Quaternary
(2015-02-05)The Ecuadorian Andes in northwestern South America are well known for being among the hot spots of global vascular plant diversity due to their complex topography (uplift of the mountain chain), varying climatic conditions ... -
Studies on pathogenicity and host resistance of Exserohilum turcicum and Fusarium spp. on maize (Zea mays L.) cultivated in tropical and temperate climate zones
(2021-11-04)In the last 60 years, maize production has increased worldwide, reaching 1.14 billion tons in 2018. Maize production in Europe and South America was about 110 and 130 million tons in 2018, respectively. The demand for ... -
Studies on Ramularia Leaf Spots on Barley - Resistance Phenotyping, Epidemiology and Pathogenicity
(2013-10-31)The deuteromycete, Ramularia collo-cygni (Rcc) has gained increasing importance as the causal agent of a novel leaf spot disease, Ramularia leaf spot (RLS), on barley. The disease occurs conspicuously late in the growing ... -
Studies on Resistance of Oilseed Rape (Brassica napus) to Verticillium longisporum – Interaction with Drought Stress, Role of Xylem Sap Modulations and Phenotyping Under Controlled and Field Conditions
(2016-11-25)Oilseed rape (Brassica napus) is one of the most important sources of vegetable oil in the world. Due to the growing demands in the biodiesel industry in particular, the global OSR production is gradually increasing since ... -
Studies on the Ascaridia galli embryonal stages, potential maternal protection and immune response in chicken
(2017-01-19)Regarding to a lack of experimental infection models and different maturation ability of Ascaridia galli egg sources (Worm uteri and faeces) in a first study (Paper 1), A.galli eggs isolated from two different sources ... -
Studies on the control and function of chromatin fragmentation during apoptosis
(2005-08-10)Apoptosis in eukaryotic cells is often accompanied by chromatin cleavage resulting in nucleosomal fragments. This cleavage is catalyzed by a DNase (named DFF40 or CAD) which is specifically ... -
Studies on the Crystallographic Phasing of Proteins: Substructure Validation and MAD-phased Electron Density Maps at Atomic Resolution
(2004-01-09)X-ray crystallography is one of the most important methods in structural biology. The availability of heavy atom derivatives of proteins facilitates the application of the crystallographic ... -
Studies on the DEAD-box RNA-helicase Dbp5 and the ABC-protein Rli1 in translation termination and identification of a novel function of Dbp5 in ribosomal transport
(2015-09-03)The DEAD-box RNA-helicase Dbp5/Rat8 is well-known for its function in nuclear mRNA export. By using its Gle1 and IP6-stimulated ATPase activity, Dbp5 displaces export factors such as Mex67 from the mRNAs at the cytoplasmic ... -
Studies on vegetation-, fire-, climate- and human history in the mid- to late Holocene - a contribution to protection and management of the forest-steppe-biome in the Mongolian Altai
(2020-09-10)In this thesis, several sedimentological archives from Altai Tavan Bogd National Park are studied to reconstruct the vegetation-, fire-, climate- and human history of the forest-steppe biome in the Mongolian Altai. The ... -
Studies Toward Selenium-pi-Acid Catalyzed Oxidative Functionalizations of Olefinic and Acetylenic Multiple Bonds
(2020-09-24)The focus of this thesis was the oxidative functionalization of alkenes via selenium-pi-acid catalysis. In the realm of dual photoredox/selenium-pi-acid catalysis, the known methodology was expanded to the use of alcohols ... -
Study of active particles in heterogeneous media
(2018-09-07)In this thesis I present simulation-based studies of systems of self- propelled particles in heterogeneous media. I consider the interaction of particles with planar walls, single spherical obstacles or arrays of randomly ... -
Study of genes of the phytopathogenic fungus Verticillium longisporum involved in the colonization of xylem vessels of its host Brassica napus
(2009-04-22)Verticillium longisporum is a devastating soil - borne fungal pathogen of the rapeseed (Brassica napus). It colonizes the xylem vessels of the host plants but the nutritional status ...