E-Dissertationen: E-Dissertationen: Recent submissions
Now showing items 441-460 of 1116
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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 ... -
Kameragesteuerte mechanische Unkrautbekämpfung in Reihenkulturen
(2017-08-14)Das Institut für Landtechnik der Universität Bonn beschäftigt sich seit einigen Jahren mit der Entwicklung der mechanischen Unkrautbekämpfung für den Bereich innerhalb der Pflanzenreihe. Die Online-Erkennung der einzelnen ... -
Potentiale von Laserscannern zur Phänotypisierung von Pflanzen für den Einsatz im Hochdurchsatz-Screening
(2017-08-08)Die Züchtung hochertragreicher Pflanzen ist von essentieller Wichtigkeit für die Ernährung der Weltbevölkerung. Diese Züchtung geht einher mit einer genauen Analyse der Interaktion zwischen pflanzlichem Genom und ... -
Water, Sanitation and Agriculture: Linkages and Impacts on Health and Nutrition Outcomes in Rural Ethiopia
(2017-08-03)In rural areas access to improved water supply is inadequate; consequently, most households rely on unimproved water sources, including unprotected wells/springs, streams, and surface water, which are easily polluted by ... -
Water availability and demand analysis in the Kabul River Basin, Afghanistan
(2017-08-08)Kabul River Basin (KRB), the most populated and highly heterogenic river basin of Afghanistan is the lifeline of millions of people in terms of supplying them with water for agricultural, municipal, and industrial as well ... -
Multiple hazards risk profiling in West Africa: Assessment, Validation and Upscaling
(2017-08-17)Disasters, particularly recurring small-scale natural disasters of floods and droughts have been affecting West African (WA) communities, impacting particularly weak households. These losses have been significantly high ... -
Biomass Energy Economics and Rural Livelihoods in Sichuan, China
(2017-07-05)This study investigates the influences of household biomass energy use on rural livelihoods in Sichuan Province of China. Of the 556 surveyed households, 432 (77.7%) households still use traditional solid biomass energy ... -
Exploring Urban Structure to Approach Energy Optimization: The case of residential settlement development in Dhaka city, Bangladesh
(2017-07-04)The concept of energy optimization in urban development has the potential to address many urban challenges besides local energy concerns. Past research has attempted to combine the cross-cutting issues of urban planning, ... -
Identification of host genes with a role in sex determination of the plant parasitic cyst nematode, Heterodera schachtii
(2017-07-03)Cyst nematodes are biotrophic parasites that infect plant roots and cause physiological and structural modifications leading to the formation of syncytial nurse cells. They are sexually dimorphic but the sexual phenotype ... -
The Relationship between the Resource Curse and Genuine Savings as an Indicator for Weak Sustainability: Theoretical Background and Empirical Evidence
(2017-07-11)This dissertation deals with the relationship between the Resource Curse (RC) – the empirically proven paradox that countries with abundant natural resources often show slower economic growth – and a measure for the ... -
Systems biology analysis of meat quality in Duroc × Pietrain pigs based on integrated omics approaches
(2017-07-03)Water holding capacity and drip loss are important commercially interesting meat quality parameters with low heritabilities and complex genetic and metabolic background. The aim of this thesis was the application of different ...
