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Aufsatz
Boxwood Borer Heterobostrychus brunneus (Coleoptera: Bostrichidae) Infesting Dried Cassava: A Current Record from Southern Ethiopia
(2017-01-27)
Insect specimens of adult beetles and larvae of 7–9 and 9–10 mm length, respectively were collected from infested dry cassava at two locations from multiple stores in southern Ethiopia. The specimens were identified as Heterobostrychus brunneus (Murray, 1867) commonly known as boxwood borer and auger beetle. The study presents a current record of H. brunneus in Ethiopia, particularly in the context of infesting food products. Additionally, a wide geographical distribution of the pest was reviewed and presented in ...
Aufsatz
Emerging Development Pathways of Urban Livestock Production in Rapidly Growing West Africa Cities
(2016-11-19)
In this study, we try to capture the degree of specialization or integration, and of intensification or extensification, of (peri-) urban livestock production, along with the factors that influence such decisions and their impact on natural resource uses. A total of 181 and 187 structured questionnaires were completed in livestock-keeping households in Ouagadougou (Burkina Faso) and Tamale (Ghana). Categorical principal component and two-step cluster analysis were used to identify homogenous groups of livestock-keeping ...
Aufsatz
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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 ...
Aufsatz
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Distributed practice in mathematics: Recommendable especially for students on a medium performance level?
(2019-10-24)
In this study, the effect of distributed practice on the mathematical performance of 7th graders was investigated (N == 81). After a stochastics lesson, one group of students worked three sets of exercises massed on one day, while the other group of students worked the same exercises distributed over three days. Bayesian analyses of the performance two weeks after the last practice revealed no evidence for an effect of practice condition. However, in a test after six weeks, strong evidence for a positive effect of ...
Aufsatz
Gottesliebe – Menschenliebe
(2015)
Kann menschliche Liebe in ihrer kulturellen Bedingtheit und dem Wandel unterworfen sowie in ihrer so häufig erfahrenen Brüchigkeit als Metapher für die Liebe Gottes zur Welt und zum Menschen dienen? Was könnte das konstante Element in der Liebe sein, das auch in theologischer Rede sinnvoll zeitlos gültig und dennoch menschlichen Erfahrungen angemessen von der Liebe Gottes künden kann? Diesen drängenden Fragen geht die Autorin nach und findet in der Philosophie von J. Kristeva eine Spur, die zur Theologie des Augustinus ...
Aufsatz
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Crack Paths at Multiple-crack Systems in Anisotropic Simulation and Experiment
(2014-06-27)
This paper is targeted on numerical methods for accurate crack tip loading analysis and crack path prediction. Those are based on finite element calculations of the boundary value problem. Applying path-independent integrals to curved cracks in order to accurately calculate the J-integral, energy release rate (ERR) or stress intensity factors (SIF) is still not state of the art. Contours which are not confined to the crack tip require special analytical preparation and numerical treatment to supply results which are ...
Aufsatz
Development of organic products in Kyrgyzstan
(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)
Kyrgyzstan is a mountainous and landlocked Central Asian country, one of five former Soviet Republics in the region. Agriculture is the main economic sector employing around 20% of population and contributing roughly 20% to the country’s GDP. Due to its climatic conditions, the Central Asian region was considered as a space for growing cotton, wheat, fruits and vegetables and tobacco and other cultures during Soviet times. Owing to its nomadic culture, Kyrgyzstan has been active predominantly in the animal husbandry sector.
Aufsatz
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BEFKI GC-K
(2013)
In aktuellen Intelligenzstrukturmodellen gehört kristalline Intelligenz (gc) zu den am besten etablierten Fähigkeitsfaktoren. Dabei spiegelt gc die Einflüsse von Lernen und Akkulturation wider und umfasst somit alles Wissen, das Menschen im Laufe ihres Lebens erwerben und zum Problemlösen einsetzen. In diesem Beitrag beschreiben wir die Entwicklung einer Kurzskala zur Messung kristalliner Intelligenz mit fünfminütiger Bearbeitungszeit, die auf deklarativen Wissensfragen aus den Natur-, Geistes- und Sozialwissenschaften ...
Aufsatz
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Weak and strong bi-material interfaces and their influence on propagating cracks in plane elastic structures
(2017-09-06)
The developing crack paths in heterogeneous structures are the result of the inhomogeneous state of stress. The latter stems from e.g. voids or inclusions in an elastic matrix, which are bonded either by strong or weak interfaces. Besides the stiffness of an inclusion, the kind of interface has a decisive influence on the state of stress and therefore on propagating cracks. It is experimentally proven that cracks tend to grow towards regions with lower stiffness (Tilbrook et al., 2006; Judt et al., 2015), therefore ...
Aufsatz
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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 ...