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Dissertation
Using Optical Satellite Imagery to Monitor and Understand Agricultural Land-cover Change
(2020-06)
The activities of humans have transformed the earth over the last decades. The transformation is estimated to increase further in response to the growing world population. This has caused many countries to devise means to utilize resources sustainably. Bio-economy is seen as a means to reduce the high reliance on fossil materials and ensure the provision of raw materials, energy and food to the increasing world population in a sustainable manner. However, the rising demands for biomass to produce bioenergy have relied ...
Aufsatz
Science–Policy Interfaces Related to Biodiversity and Nature Conservation: The Case of Natural Capital Germany—TEEB-DE
(2020-05-03)
Responding to the UN programme “The Economics of Ecosystems and Biodiversity” (TEEB), TEEB-DE (2012–2018) was a science–policy interface (SPI) set up in Germany with the objective of mobilising scientific expertise for a better consideration of biodiversity and ecosystem services in political and corporate decision-making. The aim of this paper is to contribute to an assessment of TEEB-DE by analysing its objectives, structure, processes and outputs. The analysis is guided by a theoretical framework that takes ...
Dissertation
Peeking into the Black Box of Researcher Mobility and Knowledge Diffusion
(2020-03-18)
This dissertation thesis presents four studies on the relevance of individuals’ mobility for the dissemination of knowledge. They add to the literature on the economics of science and innovation as well as regional economics. Previous literature has shown researcher mobility to be an important driver of knowledge diffusion and, subsequently, the creation of new knowledge. However, different mobility types are often correlated and hard to differentiate. This thesis tries to help advance this research strand, in ...
Dissertation
Quantitative analysis of the Interbank credit market e-MID in the high frequency domain
(2020)
Interbankenkreditmärkte, und vor allem das ungesicherte übernacht-Segment, gelten aus verschiedenen Blickwinkeln als wichtig für das gesamte Finanzsystem. So können Banken an diesen Märkten effizient Liquidität handeln oder dadurch Verpflichtungen in Zahlungs- und Abrechnungssystemen einhalten. Distorsionen in der Liquiditätsbeschaffung haben dabei negative Auswirkungen auch auf der mikroökonomischen Ebene, da diese die Kreditkonditi-onen von Haushalten und Firmen beeinflussen. Da Interbankenkreditmärkte als der erste ...
Aufsatz
Implementing Distributed Practice in Statistics Courses: Benefits for Retention and Transfer
(2020-11-18)
The present study investigated the effect of distributed versus crammed practice before a course deadline on the retention and transfer of knowledge, and whether learner characteristics moderate the effect. In Experiment 1, only 41% (N = 38) of the initially enrolled students worked the voluntary but recommended practice tasks. Moreover, markedly fewer students did so in the distributed condition (12%) than the crammed practice condition (29%). In Experiment 2, working the practice tasks was mandatory and more students ...
Working paper
Mercosur–EU Agreement: Impact on Agriculture, Environment, and Consumers
(kassel university press, 2020-05-06)
Aufsatz
Optimising beekeeping development programs for improved productivity, income and welfare: a case study of Papua New Guinea
(2020-10-19)
Beekeeping can provide important sources of cash income for farmers in developing countries where land is unconducive to crop and livestock production systems. In many low-income countries however, attrition among beekeeping adopters remains a chronic problem, colony losses are high, support for and coordination of the sector is low, and practices, production and income from beekeeping is often inefficient. This study investigated the key drivers and practices influencing incomes from beekeeping, honey production and ...
Teil eines Buches
Verletzbarkeit als menschliches Charakteristikum
(Beltz Juventa, 2020)
Wenn Menschen an ihrer Leistungsfähigkeit gemessen und somit auf die Funktionsfähigkeit ihrer Körper und Sinne reduziert werden, können hierauf stigmatisierende und diskriminierende individuelle Handlungsweisen bzw. gesellschaftliche Ausgrenzungspraktiken und -strukturen folgen. Dies lässt sich auch an der Klassifizierung von Behinderung durch den Vergleich mit einer als Normalität konstruierten Funktionsfähigkeit in der Internationalen Klassifikation von Funktionsfähigkeit, Behinderung und Gesundheit (ICF) der ...
Aufsatz
Forage biomass availability, species diversity and seasonal variation in grazing behaviour of cattle in the outskirts of Ouagadougou
(2020-10-14)
In order to determine the exploitation of grazing areas in the outskirts of Ouagadougou by cattle herds, the grazing behaviour of cows was monitored in five villages in these during three distinct seasons, namely wet, cool dry and hot dry season. A vegetation study including a census of the woody and herbaceous stratum of grazing areas allowed for an assessment of the pasture biomass availability during the wet season. Results of the monitoring of cattle herds showed that the land type grazed by cattle in the outskirts ...
Preprint
No Chaos in Dixon's System
(2020)
The so-called Dixon system is often cited as an example of a two-dimensional (continuous) dynamical system that exhibits chaotic behaviour, if its two parameters take their value in a certain domain. We provide first a rigorous proof that there is no chaos in Dixon's system. Then we perform a complete bifurcation analysis of the system showing that the parameter space can be decomposed into sixteen different regions in each of which the system exhibits qualitatively the same behaviour. In particular, we prove that ...