E-Dissertationen: E-Dissertationen: Recent submissions
Now showing items 481-500 of 1166
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Dynamics of nitrogen and phosphorus under the impact of climate change and agricultural land use in the West African Sudan Savannah
(2018-01-16)Changing climate and agricultural land-use dynamics seriously challenge the future of cropping in the West African Dry Savannah, and, in turn, the livelihoods and food security of rural populations. Current production ... -
Lucerne silage for high yielding dairy cows: evaluation of the nutritional value using chemical and in vivo methods
(2018-02-07)Lucerne has a high yield potential and can provide ruminants with significant amounts of energy and protein as well as having excellent structural properties. This thesis focussed on the response (dry matter intake (DMI), ... -
Analysis of the role of polygalacturonase inhibiting proteins in the interaction between plants and nematodes
(2018-01-04)Plant-parasitic nematodes (PPNs) are a great threat to crops, causing billions of dollars of losses worldwide. Cyst nematodes and root-knot nematodes belong to a small group of sedentary endoparasitic PPNs that parasitize ... -
Determinants of incentive-based forest governance in the Amazon: Evidence from Ecuador, Peru, and Brazil
(2018-02-07)Command-and-control policies are often criticized as insufficient to tackle tropical deforestation. Over the past two decades, both academics and policy-makers have promoted incentive-based policies, such as payments for ... -
Incremental Map Building with Markov Random Fields and its Evaluation
(2018-01-04)This thesis presents a novel occupancy grid mapping approach which takes the dependencies of neighboring grid cells into account. The grid maps are estimated based on a compact environment representation which is derived ... -
Water Quality in Multipurpose Water Systems, Sanitation, Hygiene and Health Outcomes in Ghana
(2018-03-29)This thesis examines the interlinkages between water quality, water use, sanitation and hygiene practices, other household characteristics and health outcomes in the context of multipurpose water systems in Ghana. ... -
Subcellular glutathione homeostasis and characterisation of glutathione transport across the plasma membrane in Arabidopsis thaliana
(2017-12-22)Challenging environmental conditions are known to alter glutathione homeostasis, notably by inducing the accumulation of oxidized glutathione, an effect that may be influential in the perception or transduction of stress ... -
Epigenetic and exosome-mediated cell-cell communication in follicular cells and preimplantation embryos
(2017-12-21)Follicular cells and preimplantation embryos communication with their in vivo or in vitro environments via mechanisms including cell adhesion and extracellular vesicles is crucially essential for normal oocyte and embryo ... -
Helminth antigen-induced innate immune response in porcine peripheral blood mononuclear cells
(2017-12-21)Helminths are among the gastrointestinal parasites that are responsible for substantial loss of productivity in swine and other livestock industry. Despite indoor intensive rearing with routine anthelmintics, helminth ... -
Analysis of fruit and vegetable supply, demand, diet quality and nutrition in Uzbekistan
(2017-12-12)In Uzbekistan, per capita national supply of fruit and vegetables exceeds the daily recommended amount of 400 grams by more than two times. Nevertheless, individual-level intakes remain inadequate due to the strong seasonal ... -
Sustainability of community forestry enterprises: indigenous wild honey gathering in the UNESCO Man and Biosphere Reserve Palawan, Philippines
(2017-12-12)Commercialization of non-timber forest products has been one of the strategies worldwide for integrated rural poverty alleviation and forest conservation. Through a social-ecological systems approach, this dissertation ... -
Coupled biotic-abiotic mechanisms of nitrous oxide production in soils during nitrification involving the reactive intermediates hydroxylamine and nitrite
(2017-11-22)Nitrous oxide (N<sub>2</sub>O) is an important greenhouse gas that can deplete the ozone layer. Microbial nitrification and denitrification have been long considered as the major contributors of soil N<sub>2</sub>O production. ... -
Transcriptional profiling of mRNAs, microRNAs and mitochondrialnuclear crosstalk in porcine muscle fibers, mitochondrial respiratory and metabolic enzyme activities
(2017-11-22)Skeletal muscle is a highly metabolically active tissue and has market value in meat-producing farm animals. The overall aim of this thesis is to deeply investigate the biological functions and pathways associated with ... -
Decision making under risk in agriculture: An experimental and survey based analysis
(2017-11-03)Risk, and risk management are inherent to agricultural production. We distinguish two categories of factors influencing the farmers’ decision on risk management strategy: external and internal factors. Factors external to ... -
Mainstreaming the ecosystem services approach in strategic environmental assessment of spatial planning in Chile
(2017-10-17)Spatial planning plays a key role in policy decision-making given its influence on the future changes over the land systems and subsequently on the quality, quantity and spatial distribution of the ecosystem services (ES) ... -
Kennwerte von Zuckerrüben zur Aufbereitung und Langzeitlagerung für die Verwendung in Biogasanlagen
(2017-10-10)Bis zur Novellierung des EEG im Jahr 2014 verzeichnete die Biogasbranche und damit der Anbau nachwachsender Rohstoffe in Deutschland einen starken Aufschwung. Aufgrund hoher Maisanteile in den Fruchtfolgen und zunehmender ... -
Potential use of nitrification inhibitors for mitigating N2O emission from soils
(2017-12-14)The use of nitrification inhibitors (NI) to reduce nitrous oxide (N<strong><sub>2</sub></strong>O) emissions is a promising strategy to improve N fertilizer use efficiency and to help minimize emissions of the climate-relevant ... -
Genauigkeitsaspekte bei Messsystemen mit Nahbereichslaserscannern zum Pflanzenmonitoring
(2017-09-14)Die Analyse der dreidimensionalen Struktur von Pflanzen sowie deren zeitliche Veränderung stellen einen wesentlichen Aspekt in der Pflanzenphänotypisierung dar. Zum Einsatz kommen dabei in der Regel nichtinvasive Sensoren, ... -
Managing risk under climate change in Kenya: Multiple shocks, poverty, gender, and potential for group-based approaches
(2017-09-14)Climate change and related shocks are major challenges facing agricultural performance, poverty reduction efforts, and economic growth in developing economies. Managing risks is vital because climate change and shocks lead ... -
School lunch and short-term effects on children’s cognitive functions: Results from randomized crossover intervention studies
(2017-10-06)Studies indicate that eating lunch temporarily impairs some aspects of adults' cognitive functioning. Studies of the short-term effects of lunch on child cognition are rare. This thesis provides the results of two randomized ...
