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Working paper
Die Politisch-Administrative Elite der Weimarer Republik am 1. September 1920
(2021)
Diese Randauszählung wurde im Rahmen des Forschungsprojektes „Neue Eliten – etabliertes Personal? (Dis-)Kontinuitäten deutscher Ministerien in Systemtransformationen“ am Fachgebiet Public Management der Universität Kassel erstellt. Die hier präsentierten Tabellen und Abbildungen fassen die Ergebnisse deskriptiver Auswertungen der im Forschungsprojekt erhobenen Daten zur Politisch-Administrativen Elite der Weimarer Republik (Erhebungszeitpunkt 1. September 2020) zusammen und veranschaulichen die Häufigkeitsverteilungen ...
Aufsatz
Relationships between Motor and Executive Functions and the Effect of an Acute Coordinative Intervention on Executive Functions in Kindergartners
(2017-05-30)
There is growing evidence indicating positive, causal effects of acute physical activity on cognitive performance of school children, adolescents, and adults. However, only a few studies examined these effects in kindergartners, even though correlational studies suggest moderate relationships between motor and cognitive functions in this age group. One aim of the present study was to examine the correlational relationships between motor and executive functions among 5- to 6-year-olds. Another aim was to test whether ...
Teil eines Buches
Prinzipien der Valenztheorie(n)
(Peter Lang, 2004)
Ich will das scheinbar Unmögliche versuchen; einen möglichst konsensfähigen methodologischen Rahmen für künftige Valenztheorien vorzuschlagen. Wohlgemerkt, es geht mir um keine neue Valenztheorie, sondern um eine Valenzmethodologie als mögliche Arbeitsgrundlage für künftige Valenztheorien. Die Betonung liegt dabei auf konsensfähig, denn ohne allgemein akzeptierte methodologische Grundsätze können der partielle Dissens bezüglich Gegenstand und Methoden der Valenzforschung und die Spannung zwischen Valenztheorie und ...
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 ...
Konferenzveröffentlichung
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Joining Investigations of Polymer-Metal-Hybrids for Permanantly Non-Leaking Applications
(Society of Plastics Engineers, 2016)
The demand for light-weight construction and economic efficiency has led to the development of light-weight construction strategies, i.e., multi-material design, in many areas of industry. Here, the property profiles of the composite partners are utilized synergetically. Plastic-metal hybrid composites possess a large amount of potential in this regard owing to the weight reduction that can be achieved in the composite and the simultaneous enhancement of the mechanical properties.
Hybrid components have already ...
Rezension
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Apel, Dieter (2012): Landschaft und Landnutzung: Vom richtigen Umgang mit begrenzten Flächen
(2012-07-21)
Rezension von Markus Leibenath zu: Apel, Dieter (2012): Landschaft und Landnutzung: Vom richtigen Umgang mit begrenzten Flächen. München: oekom-Verlag. 8 Tab., 176 S.
Dissertation
Movement Recognition and Direction Detection of Pedestrians
(2021)
In this dissertation we developed a method that uses smartphone sensors to recognise the pedestrian movement (using the accelerometer) and direction (using the compass) accurately. The proposed approach works independent of the GPS and also improved the recognition time of pedestrians movement and direction in comparison to using the GPS.Currently, smartphones are the most common devices people carry with them along with the tablets and smartwatches. Most smartphones are equipped with different types of sensors, ...
Aufsatz
Coinage Metal Complexes of the Carbenic Tautomer of a Conjugated Mesomeric Betaine Akin to Nitron
(2017-07-07)
This study was motivated by our recent observation that the analytical reagent Nitron (2) is an “instant carbene”, whose reaction with coinage metal salts MX afforded complexes of its carbenic tautomer 1,4-diphenyl-3-phenylamino-1,2,4-triazol-5-ylidene (2′). Our aim was to establish an alkyl homologue of 2 in order to achieve a carbenic tautomer of higher donicity. For this purpose 1-tert-butyl-4-methyl-1,2,4-triazol-4-ium-3-tert-butylaminide (6) was synthesized. Its reactions with MX afforded complexes of the carbenic ...
Konferenzveröffentlichung
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Development of a Flexible Polymer Joining Center Capable of Performing Multiple Joining Processes Using Different Methods in a Single Cycle
(Society of Plastics Engineers, 2016)
Goal of this research and innovation project is the implementation of a flexible polymer joining center as a prototype machine integrating different friction welding methods. This prototype joining cell combines (a) flexibility by being capable of performing joining processes in any order in a single flow with (b) modularity by integrating unified interfaces for exchanging joining modules, and (c) scalability by offering a wide range of setups for smaller to larger work pieces. Corresponding interfaces to up- and ...
Dissertation
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Optimal control of a rate-independent system constrained to parameterized balanced viscosity solutions
(2022)
In this dissertation, we analyze an optimal control problem governed by a rate-independent system in an abstract infinite-dimensional setting. The rate-independent system is characterized by a nonconvex stored energy functional, which depends on time via a time-dependent external loading, and by a convex dissipation potential, which is assumed to be bounded and positively homogeneous of degree one.
The optimal control problem uses the external load as control variable and is constrained to normalized ...