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Now showing items 121-130 of 208
Working paper
Das Sammeln und Kaufen von Contemporary Art
(2019)
Das Verhalten von Kunstsammlern und -käufern und die zugrundeliegende Motivation, gerade Contemporary Art zu erwerben, ist heute vor allem aus wirtschaftswissenschaftlicher Perspektive von großem Interesse. Dies ist zum einen auf den in beträchtlichem Maße wachsenden Markt für Contemporary Art zurückzuführen.
Aufsatz
Assessment of varietal diversity and production systems of cowpea (Vigna unguiculata (L.) Walp.) in Southwest Nigeria
(Kassel University Press, 2019-01-11)
Cowpea (Vigna unguiculata (L.) Walp.) is the most important source of plant protein consumed in Nigeria with major supplies coming from the northern part of the country. However, reduction in supplies due to insurgency resulted in sharp increases in price, especially in Southwest Nigeria where cowpea is relished in different delicacies. Sustainable production increase in suitable Southwest agro-ecologies depends on suitability of cultivated varieties and production practices of the farmers. A study was conducted to ...
Dissertation
Resistance Based Integrated Pest Management Strategy for Globodera rostochiensis and Globodera pallida in Potato Cropping Systems
(2019-10)
Potato cyst nematodes (PCN), Globodera rostochiensis and G. pallida are important potato pests responsible for high yield losses globally. The ability of PCN to persist in the soil for a long time makes their management challenging and therefore these nematodes are under strict quarantine regulations in many countries. Nevertheless, both PCN species have recently been reported in potato cropping systems in Kenya. Resistant potato cultivars reduce nematode densities in the field below damage threshold levels and thus ...
Aufsatz
Climate-smart agriculture policy and (in)justice for smallholders in developing countries
(Section Specialized Partnerships in Sustainable Food Systems and Food Sovereignty at the University of Kassel, Germany and Federation of German Scientists (VDW), 2019-06-05)
The Food and Agriculture Organization of the United Nations developed the term Climate-Smart Agriculture as an approach to transform agricultural systems to support development and ensure food security in a changing climate. This paper analyses whether climate-smart agriculture policy meets the demands of climate justice and respects the rights of smallholders; and if not, how it could be amended. The study is based on a literature review supplemented by four interviews with climate-smart agriculture actors from ...
Working paper
Labor Rights, Working Conditions, and Workers’ Power in the Emerging Textile and Apparel Industries in Ethiopia: The Case of Hawassa Industrial Park
(2019-11)
To be able to participate in the global production network and enhance its manufacturing sector, the government of Ethiopia has been building industrial zones (Export Processing Zones) in various parts of the country. These zones have already attracted substantial investments into the country in the light manufacturing sectors, particularly, textile and apparel industries, as a result of which the country is gradually gaining the potential to become a global textile and apparel sourcing hub. Despite the governments’ ...
Dissertation
Die Physiologie des Wirts-Parasitsystems pathogener Pilze des Eschentriebsterbens
(2019)
In der vorliegenden Arbeit wurde versucht, die optimalen Wachstumsbedingungen des Pilzes H. fraxineus (Haupterreger des Eschentriebsterbens) zu ermitteln. Dafür wurden drei Wachstumsversuche (Nährmedium, pH-Wert und Temperatur) an 25 Pilzstämmen durchgeführt.
• Die Ergebnisse des Nährmediumwachstumsversuches zeigten, dass Maismehl Agar Medium (MmA) die schnellste Kultivierung des Pilzes förderte und als das optimale Nährmedium gelten kann (im Vergleich mit den anderen sechs geprüften Nährmedien).
• Der pH-Wert-Versuch ...
Dissertation
Determinants and Effects of Local Public Education Expenditures - an Empirical Approach
(2019-09-18)
There are many (international) debates on education and education expenditures from a political economic as well as from a scientific perspective. However, the role of German counties and local agents in Germany in general has not been analyzed from an economic perspective yet. This is the reason why my doctoral thesis investigates the role of German counties as the “forgotten” agent for the determinants and effects of local public school expenditures. This cumulative dissertation consists of three econometric papers ...
Aufsatz
Combining biochar with low rate of chemical fertiliser boosts maize biomass yield, regardless of tillage system, under humid conditions
(2019-11-04)
Biochar application to soils increases biomass and crop yields, especially with rates higher than 100 t ha−1. Yet, there is limited knowledge on the combined effect of biochar and chemical fertiliser under different tillage systems. The objective of this study is to investigate the effect of maize-cob biochar (BC) (rates of 5 and 10 t ha−1) combined with chemical fertiliser micro-dosing (MD) at a rate of 25% of the recommended quantity on total shoot dry matter (DM) and plant height of maize cultivated under flat (F) ...
Aufsatz
Ultrasound treatment (low frequency) effects on probiotic bacteria growth in fermented milk
(Section Specialized Partnerships in Sustainable Food Systems and Food Sovereignty at the University of Kassel, Germany and Federation of German Scientists (VDW), 2019-09-04)
The effect of ultrasonic treatment at 40 kHz for 0, 5, 10, 15 and 20 minutes on the growth of five different strains of probiotic bacteria (Lactobacillus acidophilus LA-5, Lactobacillus casei LC, Lactobacillus reuteri LR-MM53, Bifidobacterium bifidum Bb-12 and Bifidobacterium loungm BB-536) in fermented milk was investigated. The study findings indicate that ultrasound treatment (10 minutes) increased the viable cells and total acidity for LA-5, LC and LR-MM53 samples but decreased viable cells and total acidity in ...
Dissertation
Understanding Factors Influencing the Performance of a Wi-Fi Fingerprinting System
(2019)
Location information plays a vital role in today’s society. People usually carry their mobile devices everywhere they go to benefit from real-time location services; the location of the device is the location of users. The focus of positioning services is shifting from outdoors to indoors. Technological services which depend on indoor locations are increasing in popularity. Wi-Fi fingerprinting is a promising technique that can be used for indoor localization. In this regard, this dissertation targets at improving ...