Browsing Naturwissenschaften, Mathematik und Informatik by Title
Now showing items 1754-1773 of 5496
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Fabric Development, Electrical Conductivity and Graphite Formation in graphite-bearing Marbles from the Central Damara Belt, Namibia
(2004-12-22)Graphite-bearing marbles occur in crustal-scale dome structures of the central parts of the Damara Belt in north-western Namibia. They have been reported to show significant anomalies of ... -
Fabrication of Multidimensional Sustainable Materials from Wood via Alkaline Periodate Oxidation
(2024-01-22)Producing multidimensional sustainable materials from wood using alkaline periodate oxidation (APO) is a promising path toward new materials that take advantage of the inherent properties of wood and the environmentally ... -
Fabrication of Polymer-Metal Nanohybrids - Routes Towards Functional Materials
(2021-11-15)Within this thesis various nanohybrid systems constructed from metal nanocrystal cores and polymer shells were specifically tailored towards distinct practical applications. The first part of this work addresses the ... -
Fabry-Pérot etalons for high precision radial velocity calibration
(2014-06-24)The current generation of astronomical spectrographs can measure radial velocity signals of exoplanets down to a few m/s, in ideal cases even 60 cm/s can be achieved. This led to the discovery of rocky planets with masses ... -
Facility Location in the Phylogenetic Tree Space
(2019-03-25)Phylogenetics is a field of biology trying to describe the evolutionary history of a given set of populations or species. Evolutionary relationships are obtained through statistical models for phylogenetic inference. In ... -
Factors controlling the lower elevational limits in tropical montane plants in the Andes and their implications under the current climatic change
(2006-01-31)To date all experimental approaches on the mechanisms that determine the lower elevational limits of plants have been carried out in temperate regions. Despite of the concrete and relevant ... -
Factors determining success and failure of development projects in Lesotho
(2007-06-11)Natural deterioration is visible everywhere throughout Lesotho. This study aims to provide insights into factors favouring the outcomes of development projects in the natural resource sector. ... -
Factors Influencing Fruiting Body Initation of Agaricomycetes
(2021-04-23)Macroscopic multicellular fruiting bodies of Agaricomycetes, commonly referred to as mushrooms, are the most complex developmental structures which exist in the kingdom of fungi. Fruiting bodies serve in production and ... -
Factors regulating the population dynamics and damage potential of pollen beetle (Meligethes aeneus F.) on crops of oilseed rape
(2014-05-15)The pollen beetle Meligethes aeneus (Fabricius) (Col.: Nitidulidae) is one of the most important pests of oilseed brassicas in Europe. Due to extensive use of pyrethroids and the limited supply of registered insecticide ... -
Factors stimulating germination of Plasmodiophora brassicae resting spores
(2022-12-07)Cruciferous crops have significant economic value as vegetables, edible and industrial oil sources, animal feeds, manure and biofuel. Clubroot caused by Plasmodiophora brassicae, a worldwide spread soil-borne disease ... -
Failures and Interventions on Agricultural Markets at the International, National and Regional Scale
(2015-05-19)This dissertation discusses market distortions on several scales. According to the overarching theoretical framework, distortions arise either from malfunctions in one market, or are introduced by policymakers. The ... -
Faktoren des Kerntransports von Core-Histonproteinen: Strukturelle und funktionelle Analyse
(2001-07-18)Core histones are small basic proteins which form the nucleosomes in eukaryotic chromatin. In vitro nuclear import studies show that the four core histones H2A, H2B, H3 and H4 do not enter ... -
Familienstrukturen in Buchenbeständen (<i>Fagus sylvatica</i>)
(2000-11-21)In beech stands (Fagus sylvatica) it is observed, that beech trees with specific trunk morphology, such as forked stems, often occur in groups. At the same time, in naturral regenerated ... -
Far-from-Equilibrium Quasiparticle Dynamics in Graphene
(2023-01-17)Comprehending far-from-equilibrium many-body interactions is one of the major goals of current ultrafast condensed matter physics research. Here, a particularly interesting but barely understood situation occurs during a ... -
Farbdiskrimination und Stroop-Effekt bei Kindern mit chronischer Tic-Störung (CTS) und/oder Aufmerksamkeits-Defizit/Hyperaktivitäts-Störung (ADHS)
(2009-06-04)Preliminary findings suggest that color perception, particularly of blue-yellow stimuli, is impaired in children with attention-deficit/hyperactivity disorder (ADHD) as well as in adults ... -
FARINELLI: ein testisspezifisches VAP-Protein und seine Funktion in der Drosophila-Spermatogenese
(2002-08-09)This study focuses on the analysis of a novel gene, farinelli (fan), that is required for male fertility in Drosophila. Even though mRNA and protein are already detected in premeiotic ... -
Farm Production Diversity and Dietary Quality in Smallholder Farm Households
(2017-01-13)Investments in agricultural modernization have resulted in remarkable progress in food production over the last century. As a consequence, the global number and the proportion of undernourished people has fallen significantly. ... -
Farmers, Peers, and Traders. Application of social networks in modern agricultural systems
(2020-04-30)Social networks can serve as an instrument to link agents with each other over space and time. The emerging pattern can display the flow of information, the diffusion of technology or the trade flow of products between all ... -
Farming systems and landscape context: effects on biodiversity and biocontrol
(2005-05-27)The intensification of agricultural practices and the increase of area under agricultural production, which was accompanied by a destruction of perennial habitats, made agriculture to one ... -
Farmland biodiversity and associated ecosystem services across tropical rural- urban landscapes
(2022-07-20)Driven by the unprecedented growth of human populations, cities all over the globe are expanding. Especially Asia and Africa are hotspots of current and future urbanization. As cities grow, they extend in area, sprawling ...