E-Dissertationen: E-Dissertationen: Recent submissions
Now showing items 201-220 of 1107
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Identification, characterisation, and evaluation of bioactive plant-based compounds for the sustainable stabilisation of food packaging materials
(2022-04-05)Typically, plastic packaging materials are produced using additives, like e.g. stabilisers, to introduce specific desired properties into the material or, in case of stabilisers, to prolong the shelf life of such packaging ... -
Yield, productivity and technical gaps that limit the cotton agricultural production system in the Colombian Caribbean
(2022-03-29)This thesis contributes to understanding factors related to production situations in agricultural systems of the Colombian Caribbean using decision analysis. Decision analysis has numerous advantages when it is used for ... -
Breeding progress for drought tolerance and nitrogen use efficiency in winter wheat (Triticum aestivum L.)
(2022-03-28)Drought is the major abiotic stress factor limiting agricultural production in arid, semi-arid as well as in temperate regions around the world, whereas nitrogen (N) is one of the most important nutrients for crop production. ... -
High-Throughput Phenotyping of Photosynthesis Traits in Durum Wheat Under Drought Stress Using Light-Induced Fluorescence Transients
(2022-03-24)Agriculture in the twenty-first century faces the double challenge of feeding a growing population in a changing climate. Food security will increasingly rely on the active release of stable high-yielding cultivars with ... -
Sustainability performance of organic and conventional farming systems in Kenya: Murang'a, Kirinyaga and Machakos Counties
(2022-03-17)The concept of sustainable farming systems focuses on the need to develop techniques and practices that have positive effects on social outcomes, the environment, and food productivity. In Africa, there are limited empirical ... -
Effects of different milk replacer feeding levels during a 14-week preweaning phase in heifer calves: Characterisation of the oxidative status and the mammary gland development by ultrasound imaging
(2022-03-15)The development of dairy heifer calves and especially their mammary glands is crucial for the productivity of the future dairy cows. Conventional rearing of dairy heifer calves is still based on restrictive milk or milk ... -
Modeling the spatial and temporal heterogeneity in malaria transmission and control in urban Ghana
(2022-03-03)In West Africa malaria is an endemic disease and a leading cause of mortality and morbidity. Over the years advances in mathematical modeling have improved understanding of the disease’s operational mechanisms. However, ... -
An environmental and economic assessment of a novel Power-to-Fuel system for biogas plants
(2022-03-02)Power-to-Fuel (PtF) systems use carbon dioxide and hydrogen as feedstock together for renewable fuel production and can hence contribute to climate change mitigation. This study tries to evaluate whether an innovative PtF ... -
Intergenerational Mobility and the Children of Migrants in Indonesia
(2022-02-23)Although there has been substantial increase in human development in Indonesia, individual inequality has not reduced significantly. <br /> This dissertation focuses on intergenerational mobility and its interplay with ... -
Impacts of the expansion of aquaculture on global agricultural markets and land use change
(2022-02-14)Aquaculture is one of the most rapidly growing food producing sectors. It has the potential to meet future seafood demand from a growing global population. However, the expansion of aquaculture has led to a continuous ... -
Strategien zur Steigerung von Biodiversität in der Landwirtschaft
(2022-02-14)Diese kumulative Dissertation analysiert verschiedene Strategien zur Steigerung der Biodiversität in der Schweizer Landwirtschaft. Leitgebend für die Forschung waren dabei die folgenden Fragen: Wie kann Biodiversität in ... -
Implications of topography and agronomic practices for soil biogeochemical and microbiological properties in Upper Eastern Ghana hilly farmland
(2022-02-10)While topography can infer erosion potential, implementation of convention practices can trigger accelerated erosion, and both pose major threats to soil abiotic properties and microbiota. The majority of farmlands in the ... -
Sensor-Based Phenotyping of Plant’s Physiological Responses to Abiotic Stress
(2022-02-03)Plant phenotyping can be defined as the systematic recording of morphological, anatomical, physiological and chemical characteristics of plants, as well as their developments and responses to stimuli. The common use of ... -
Decision analysis and hyperspectral imaging to support farmers in ornamental heather production
(2022-02-02)Ornamental Heather (<em>Calluna vulgaris</em>) is an important crop for the farmers of Germany’s Lower Rhine region. These farmers produce more than 78% of the ornamental heather in Germany. Successful production of this ... -
Large-scale mass redistribution in the Earth system from synergistic use of Swarm data
(2022-01-26)Long and consistent time series of large-scale mass redistribution in the Earth system are important in many scientific research areas. The dedicated Gravity Recovery And Climate Experiment (GRACE) and Gravity Recovery And ... -
Medical nutrition therapy in long-term adult intensive care patients: effects of protein quantity on muscle mass, biochemical markers, and clinical outcome
(2022-01-18)Research suggests that degradation of muscle mass and loss of functional proteins due to catabolism are associated with an adverse outcome in critically ill patients. While an adequate protein supply within a medical ... -
Glucocorticoid receptor-mediated responses to immune stress in pigs in the context of a natural gain-of-function substitution Ala610Val
(2022-01-07)Despite the importance of glucocorticoids (GCs) and glucocorticoid receptor (GR) signaling, relevant knowledge in pigs is scant as compared to humans and model animals. This study aims to investigate the regulation, function, ... -
Personalized digital extension services, electronic marketplaces, and mobile phones: Implications of digital technology for rural development in India
(2021-12-16)In developing countries, the cost of acquiring information is substantially high as information is limited, unevenly distributed, and inefficiently transmitted. Information problems have important consequences on how ... -
Roads, Geography, and Connectivity: Economic Impacts of Road Infrastructure in Georgia and Armenia
(2021-12-16)Adequate road infrastructure is considered one of the major factors for economic development. The improvement of connectivity has been crucial for the development agenda. This has resulted in rapid increase in infrastructure ... -
Establishment of an experimental model for dairy cows of divergent peripartal mobilization of body reserves: Profiling circulating steroid hormones and the mRNA abundance of steroid metabolizing enzymes in liver and in adipose tissue
(2021-12-16)The lactation cycle of dairy cows is characterized by physiological, metabolic, and endocrine changes that also affect adipose tissue (AT) function and portion. These changes include lipogenesis during periods of nutrient ...
