Now showing items 21-30 of 187
Reflexionsfähigkeit in der Lehrerbildung - eine empirische Untersuchung im Rahmen der Schulpraktika im Fach Sport
Im Kontext der Professionalisierung angehender (Sport-)Lehrkräfte kommt der Fähigkeit zur Reflexion besondere Bedeutung zu. Für ihre Förderung stellt die Arbeit mit (Video-)Fällen eine geeignete und anerkannte Methodik dar. Die Fallarbeit kann sich sowohl auf fremde videografierte als auch auf selbst erlebte Unterrichtsereignisse beziehen. Die Schulpraktischen Studien bieten als Theorie und Praxis verbindende Veranstaltungen Gelegenheit für das Sammeln eigener Unterrichtserfahrungen. Sie stellen damit einen geeigneten ...
Using crop genetic diversity to improve resilience: Agronomic potential of evolutionary breeding under differing management systems
Mainly within organic and low-input cropping systems, evolutionary breeding based on the creation of heterogeneous evolving composite cross populations (CCPs) has been gaining attention. The aim of this dissertation is to assess the agronomic potential and yield stability of wheat CCPs in comparison to pure line varieties under differing management systems. Three winter wheat CCPs were created in the UK in 2001, based on parental varieties that were selected for either their high yield or baking quality. The baking ...
Existence and Regularity Results of a Ferroelectric Phase-Field Model
In this thesis, we investigate the existence and regularity results of a ferroelectric phase-field model, which is a state-of-the-art model arising in recent years from the engineering area for the ferroelectric study.
Factors Influencing the Effectivity and Usage of Desirable Difficulties in Learning
What circumstantial factors or personality factors influence the effectivity of desirable difficulties, and correspondingly, the attitudes to and the usage of desirable difficulties? The dissertation covers externally regulated (laboratory and classroom) and self-regulated learning and starts with a brief introduction of the concept of desirable difficulties and a literature review of selected papers on disfluency, interleaving and spacing, as well as testing and generation. The literature review focuses on effectivity ...
Krisenbewältigung und Professionalität von Supervisoren
Die vorliegende Arbeit entstand aus dem Interesse, die Entstehung eines professionellen Habitus bei langjährig erfahrenen Supervisoren nachzuvollziehen und diesen Prozess mittels empirischer Methoden zu dokumentieren. Bisher liegen m.W. keine Studien vor, die anhand von narrativ-biographischen Interviews mit Supervisoren die Bedeutung der Bewältigung von Krisen für die Bildung eines professionellen supervisorischen Habitus untersuchen, geschweige denn Nachweise für diesen Zusammenhang zu erbringen. Der Ausgangsgedanke ...
Do We Pronounce Quotation? An Analysis of Name-informing and Non-name-informing Contexts
Quotation marks are a tool to refer to the linguistic form of an expression. For instance, in cases of so-called pure quotation as in “Hanover” has three syllables, they point to the syllabic characteristics of the name of the town of Hanover. Cases of this nature differ from sentences like Hanover is a town in New Hampshire, in which Hanover is used denotationally and, thus, refers to the town of Hanover itself. Apart from quotation marks, other means such as italics, bold, capitalization, or air quotes represent ...
Vol. 7 No. 1 (2019): Climate Change Impact on Food Security and Smart Agriculture as a Solution
(Specialized Partnerships in Sustainable Food Systems and Food Sovereignty, Faculty of Organic Agricultural Sciences, the University of Kassel, Germany and the Federation of German Scientists (VDW), 2019)
Weight reduction of DC/DC converters using controllable inductors
(VDE Verlag, 2019-07)
Controllable inductors can be realized by introducing auxiliary windings into the device that partially saturate the core and allow variation of the inductance value. This can be used to achieve zero-voltage switching in a DC/DC converter over a wide load range while at the same time the weight of the inductor is reduced. In this paper the possible size and weight reduction and the influence on the efficiency is calculated and compared to other solutions. The results are verified in a prototype.
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.
Gold Surface Nanostructuring with Ultrashort Laser Pulses - Study of Non-equilibrium Effects
Laser material interaction and structure formation in metals under controlled ultrashort laser pulse conditions are discussed in this work. A novel approach is presented describing the exact amount of energy deposited by a laser pulse in a gold surface, applicable under a variety of structuring conditions. The presented model is validated by a new introduced broad-band pump-probe reflectivity measurement method. A technique also applicable to investigate other phenomenas where 20 fs resolution combined with an octave ...