Browsing Naturwissenschaften, Mathematik und Informatik by Title
Now showing items 2854-2873 of 5803
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L2-invariants of nonuniform lattices in semisimple Lie groups
(2013-05-03)We compute L²-invariants of certain nonuniform lattices in semisimple Lie groups by means of the Borel-Serre compactification of arithmetically defined locally symmetric spaces. The main results give new estimates for ... -
l<sup>p</sup>-Kohomologie, insbesondere Verschwindungssätze für l<sup>p</sup>-Kohomologie
(2007-08-14)In this dissertation we study the lp-cohomology of discrete groups of type FPn. We give a duality statement and prove some vanishing results, in particular for groups with an ... -
L^2-Spektraltheorie für Markov-Operatoren
(2008-02-11)We analyze the spectral properties of Markov operators induced by Markov chains with general state space on certain L2-spaces. Especially we are interested in the question, whether the ... -
Label-Free Measurements of Amyloid Formation by Suspended Microchannel Resonators
(2014-12-12)Amyloid deposition in tissues is a hallmark of many severe diseases including Alzheimer’s and Parkinson’s disease. The formation of amyloid fibrils involves several intermediate steps, and revealing the kinetics of each ... -
Labelling Policies for Food
(2015-12-02)Food labeling is of growing importance in the market place due to increases in both food products and in consumer interest in specific product quality characteristics. Food labels can help consumers differentiate highly ... -
Laboratory studies of partially saturated infiltration dynamics in analog fractured porous rock systems - under consideration of fracture-matrix interaction and network geometry
(2024-08-09)Fractured porous rocks are abundant groundwater reservoir formations often covered by a thick, unsaturated zone. The interplay between fractures and rock matrix can significantly impede infiltration, particularly when the ... -
Laboruntersuchungen zum langfristigen Denitrifikationspotential im oberflächennahen Grundwasser hydromorpher Mineralböden Nordwestdeutschlands
(2004-02-19)In the shallow groundwater of hydromorphic soils denitrification plays an important role for reducing nitrate and production of nitrous oxide. Depending on the presence of fossil or recent ... -
Laccases and other ligninolytic enzymes of the basidiomycetes Coprinopsis cinerea and Pleurotus ostreatus
(2009-12-23)Organisms produce ligninolytic enzymes in order to degrade lignocellulosic materials. Mainly, such enzymes are found in the fungal kingdom and are particularly widespread in the phylum ... -
Land use and land cover changes in South East Asia: The effects of land transformations on biophysical variables in Indonesia
(2018-10-01)Over the last decades, Indonesia has experienced dramatic land transformations with an expansion of oil palm plantations at the expense of tropical forests. Indonesia is currently one of the regions with the highest ... -
Land Use Change in Papua, Indonesia – Assessing Deforestation Patterns and Predicting Future Hotspots of Habitat Loss to Inform Spatial Conservation Planning
(2025-05-08)New Guinea, the world’s largest tropical island, harbors some of the most biologically diverse and unique ecosystems. Despite its global ecological significance and endemic biodiversity, the region remains one of the most ... -
Land-atmosphere interactions of agroforestry systems in Germany: quantifying the ecosystem-scale carbon uptake and potential wind erosion reduction
(2025-08-11)The world is more frequently experiencing extreme weather conditions due to climate change. Society and agriculture face more intense long-lasting warm and dry seasons, and extreme rainfall. These intensifying weather ... -
Land-use change and rural development in Indonesia: Economic, institutional and demographic aspects of deforestation and oil palm expansion
(2018-06-06)Changes in land use, such as deforestation, expansion of sedentary agriculture and intensification of agricultural systems, significantly altered economic and ecological conditions in many regions of the world. In recent ... -
Land-use Change in the Central Highlands of Vietnam
(2003-07-25)This dissertation investigates the role of geophysical, agroecological, and socioeconomic determinants of land-use change during the last 25 years in two districts of Dak Lak province in ... -
Land-use change, socioeconomic welfare, and gender roles in rural Indonesia
(2021-06-15)Global population and income growth has driven the demand for agricultural land. This rapid conversion of land use to agriculture has affected the social and economic welfare of local communities within the landscape. ... -
Land-use Control on Abiotic and Biotic Mechanisms of P Mobilization
(2017-10-13)Phosphorus (P) is the most limiting nutrient for plant growth and productivity in many regions worldwide especially in the tropics. Aside intrinsic low P availability controlled by physicochemical and biological reactions, ... -
Land-use dynamics, economic development, and institutional change in rural communities - Evidence from the Indonesian oil palm sector
(2015-02-26)This dissertation is an empirical investigation of the implications of the Indonesian oil palm sector for rural village communities located in Jambi province, on the island of Sumatra. It consists of three contributions ... -
Land-use impacts on biodiversity and ecosystem functioning of complex multitrophic communities
(2016-02-24)Global biodiversity is rapidly declining, resulting in far-reaching impacts on the functioning of ecosystems and human wellbeing. In recent decades, anthropogenic land use has been identified as a major driver of biodiversity ... -
Land-use trajectories in lowland Sumatra: Impacts on leaf area index and below-canopy temperatures
(2025-11-12)Land-use change is widespread across the globe, leading to significant biodiversity loss and impairing ecosystem functions. The land-use trajectories from forest to agriculture contributes to increased surface and air ... -
Landnutzung und Kulturlandschaft
(2014-03-17)On the basis of the natural landscape’s structure of a district located at the edge of the Südheide - situated in the eastern part of the rural district of Celle in Lower Saxony, Germany – the connection between land use ...