E-Dissertationen: E-Dissertationen: Neuzugänge
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Food price volatility: the role of stocks and trade
(2015-10-14)After a period of relatively low international food price volatility since the 1970s, prices spiked in 2007/2008 and 2011. These international price changes transmitted to domestic markets where they generate extra volatility. ... -
Preferences for high-value agricultural products in developing countries: Demand analyses for livestock products in Vietnam
(2015-09-01)This thesis comprises three papers that aim to analyze demand for livestock products in Vietnam as a case study for preferences for high value agricultural products in developing countries. <br /> Chapter 2 is based on the ... -
Genetic and physiological factors of ozone tolerance in rice (Oryza sativa L.)
(2015-09-02)Intensive human activities have contributed to the increase of tropospheric ozone. Ozone is toxic to plants and causes serious damage to crop production and global food supply. Therefore it is necessary to adapt crops to ... -
The role of abiotic processes in the formation and degradation of gaseous nitrogen compounds in the soil
(2015-09-24)Soils are a major source of nitrogen (N) trace gases, especially of nitrous oxide (N<sub>2</sub>O) and nitric oxide (NO). The two microbial processes nitrification and denitrification are considered the major contributors ... -
The Prospects of Organic Farming in Bhutan
(2015-08-26)The potential harmful effects of conventional agriculture (CA) and the alleged multiple benefits of organic agriculture (OA) in conjunction with the prevalence of coherent conceptual linkage between the principles of OA ... -
Real-time quantification of oxygen isotope exchange between carbon dioxide and leaf/soil water in terrestrial ecosystems with laser-based spectroscopy
(2015-08-26)The oxygen isotope ratio of atmospheric carbon dioxide (δ<sup>18</sup>O-CO<sub>2</sub>) can be used to partition the gross fluxes of CO<sub>2</sub> in terrestrial ecosystems, such as soil respiration and plant assimilation, ... -
Analyse der Konfiguration bei der Approximation ungleichmäßig abgetasteter Oberflächen auf Basis von Nivellements und terrestrischen Laserscans
(2015-07-30)Seit einigen Jahren unterliegt der Bereich der Ingenieurgeodäsie einem starken Wandel, da sich diese Disziplin generell den stetig weiterentwickelnden, anwendungsbezogenen Problemstellungen widmet. Unter diesen Aspekten ... -
Ascorbate Metabolism in Rice (Oryza sativa L.) and its Implications for Tolerance against Zinc Deficiency
(2015-08-20)Rice is one of the most important staple crops worldwide and a growing world population will lead to an increasing demand for food in the upcoming years. Severe yield losses are threatening food security, caused by abiotic ... -
Gender- Differentiated Asset Dynamics in Bangladesh: Individual Adaptation and the Potential for Group Based Approaches in the Context of Climate Change
(2015-08-06)This dissertation examines the changes in intra household asset ownership induced by external events. The immediate coping mechanisms and long term adaptation strategies in response to climatic and non-climatic shocks and ... -
Impacts of Rural-urban Migration on Demographic Transition, Human Capital Investment and Agricultural Productivity in China’s Rural Areas
(2015-07-21)This dissertation focuses on the impacts of rural-urban migration on the rural areas in China. It consists of five chapters. <br /> The first chapter introduces the research problems and presents the framework for studying ... -
Land Rental Market and Rural Economic Development: Evidence from Rural Chongqing, China
(2015-07-21)This study investigates the role of the land rental market in rural economic development with the province Chongqing, China, as case study region. The study focuses on the question participation in the land rental market ... -
Function and regulation of AMP-activated protein kinase in in vitro development and lipid metabolism of preimplantation bovine embryos
(2015-07-14)One of the major problems associated with the in vitro production of bovine embryos is lipid accumulation due to the presence of serum in culture media. AMP-activated protein kinase (AMPK) is well documented as a master ... -
Soil water availability in agriculturally used wetlands of East Africa
(2015-07-07)Wetlands contribute increasingly to the food needs and income generation of the rural population in East Africa. The transformation of wetlands into farmland has gained momentum due to a growing food demand, upland shortages ... -
Agricultural Innovation and Service Delivery through Mobile Phones: Analyses in Kenya
(2015-07-21)Mobile phones have become the most ubiquitous telecommunication technology in developing countries. To take advantage of this trend, businesses, government agencies and non-governmental organisations are increasingly turning ... -
Bio-Based Energy, Rural Livelihoods and Energy Security in Ethiopia
(2015-09-21)The energy consumption in Ethiopia is based mainly (90%) on the traditional use of biomass for domestic needs, mostly using rudimentary cooking stoves. Against this background, the present study examines the importance of ... -
An empirical Investigation into the factors critical to the effectiveness of ABS implementation at the national and international levels
(2015-07-15)The research presented in this thesis firstly investigates critical factors for assessing the effectiveness of existing Access and Benefit Sharing (ABS) instruments at the national and international levels with respect to ... -
Placebo-kontrollierte Interventionsstudie zum Einfluss von Quercetin auf Blutdruck und Endothelfunktion bei übergewichtigen Hypertonikern
(2015-06-29)Hintergrund: Das Flavonol Quercetin ist eines der stärksten Antioxidantien pflanzlichen Ursprungs. In Kohortenstudien zeigte sich eine inverse Assoziation zwischen alimentärer Quercetinzufuhr und dem Risiko für kardiovaskuläre ... -
System innovations promoting health management in pig production chains
(2015-07-28)The main goal of this paper was to propose system innovations, always referring to the supply chain of pig meat, regarding the realization of the following three big challenges: renouncement of tail docking, renouncement ... -
Quality management, certification and related agricultural organisations along the value chain: Empirical study about Fairtrade coffee in China
(2015-06-08)Coffee quality tends to be defined from various dimensions to meet the demand of buyers. It goes beyond the physical and cupping qualities, with moral value and environmental concern becoming crucial features of the ... -
A 24-hour food list for dietary assessment in large-scale epidemiological studies
(2015-06-18)The validity of dietary assessment in large-scale cohort studies has been questioned. Combining different instruments for the assessment of consumption probability and amounts consumed might be feasible and improve the ...
