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In this paper, we show how the theory of NP completeness can be introduced to students in secondary schools. The motivation of this research is that although there are difficult issues that require technical backgrounds, students are already familiar with demanding computational problems through games such as Sudoku or Tetris. Our intention is to bring together important concepts in the theory of NP completeness in such a way that students in secondary schools can easily understand them. This is part of our ongoing research about how to teach fundamental issues in Computer Science in secondary schools. We discuss what needs to be taught in which sequence in order to introduce ideas behind NP completeness to students without technical backgrounds.
Development of competence-oriented curricula is still an important theme in informatics education. Unfortunately informatics curricula, which include the domain of logic programming, are still input-orientated or lack detailed competence descriptions. Therefore, the development of competence model and of learning outcomes' descriptions is essential for the learning process in this domain. A prior research developed both. The next research step is to formulate test items to measure the described learning outcomes. This article describes this procedure and exemplifies test items. It also relates a test in school to the items and shows which misconceptions and typical errors are important to discuss in class. The test result can also confirm or disprove the competence model. Therefore, this school test is important for theoretical research as well as for the concrete planning of lessons. Quantitative analysis in school is important for evaluation and improvement of informatics education.
In this article, we propose a model for an understanding process that learners can use while studying programming. We focus on the “small step” method, in which students learn only a few concepts for one program to avoid having trouble with learning programming. We also analyze the difference in the description order between several C programming textbooks on the basis of the model. We developed a tool to detect “gaps” (a lot of concepts to be learned in a program) in programming textbooks.
China und die Welt
(2013)
Was will China? Diese Frage wird immer wieder gestellt, wenn es um die internationale Positionierung der Volksrepublik geht. In den letzten Heften diskutierte WeltTrends die neue(n) Weltunordnung(en) des 21. Jahrhunderts. Einig war man sich in der Einschätzung, welche Rolle China in der Welt von übermorgen übernehmen wird: Es wird eine globale Macht sein. Ein Autor datierte sogar die Übernahme der hegemonialen Rolle der USA durch China präzise auf das Jahr 2035. Im asiatisch-pazifischen Raum versteht sich China als „Großmacht“. Die Zahl der Nachbarn ist groß und China steht seit Jahrtausenden mit ihnen in einem spannungsreichen Verhältnis. Territorialkonflikte schwelen und brechen von Zeit zu Zeit aus. Auch die USA verstehen sich als pazifische Macht. Dies wurde durch Obama, dem „ersten pazifischen Präsidenten“ der USA, zum neuen außenpolitischen Programm, das militärisch untersetzt wird. Gefährlich, auch für den globalen Frieden, kann es werden, wenn in diesem Raum aus der Konkurrenz zweier großer Mächte ein Kampf wird. Das Rasseln von Säbeln ist bereits hörbar. Dass sich die chinesische Diplomatie dieser Herausforderung mit konfuzianischer Klugheit stellt, überrascht.
Handlungsempfehlungen
(2013)
Inhalt: Zusammenfassung 1 Anteile Fachdidaktik, Fachwissenschaft und berufsfeldbezogene Module in den einzelnen Studiengängen der Universität Potsdam 2 Anteile abschlussbezogener Lehrveranstaltungen im SoSe 2011 und deren Modulzugehörigkeit 3 Regressionsanalytische Befunde zur Professionsorientierung
Inhalt: 1 Forschungsdesign 1.1 Leitfragen 1.2 Vorgehensweise 1.2.1 Entwicklung der Analysekriterien 1.2.2 Kodierung des Textmaterials 1.3 Datengrundlage 2 Ergebnisse 2.1 Zusammensetzung des Lehramtsstudiums 2.2 Kompetenzprofilierung im Erziehungswissenschaftlichen Teilstudiengang 2.2.1 Studienordnung und Modulhandbuch 2.2.2 Lehrveranstaltungsebene 2.3 Integration von Fachdidaktik in die fachwissenschaftliche Ausbildung 2.3.1 Lehramtsstudiengänge Mathematik 2.3.2 Lehramtsstudiengänge Deutsch 2.4 Kompetenzprofilierung in den Fachdidaktiken 2.4.1 Mathematikdidaktik 2.4.2 Deutschdidaktik 2.4.3 Vergleich der Fachdidaktiken 3 Zwischenfazit
Inhalt: 1 Zielstellung der Synopse 2 Forschungsdesign 2.1 Leitfragen 2.2 Datengrundlage 3 Ergebnisse zur Potsdamer Lehrerbildung 3.1 Befunde zur Zielsetzung der Potsdamer Lehrerbildung 3.2 Institutionelle Strukturen in der Lehrerbildung 3.2.1 Zentrum für Lehrerbildung (ZfL) 3.2.2 Fakultäten, Fachwissenschaften, Fachdidaktiken 3.2.3 Bildungswissenschaften 3.3. Theorie-Praxis-Verhältnis in der Lehrerbildung 3.3.1 Theoretische und praktische Bezüge 3.3.2. Schulpraktische Studien 3.4 Charakteristika der Qualitätsentwicklung 3.5 (Zwischen-)Fazit
Zusammenfassung
(2013)
Vorwort
(2013)
By means of the cluster expansion method we show that a recent result of Poghosyan and Ueltschi (2009) combined with a result of Nehring (2012) yields a construction of point processes of classical statistical mechanics as well as processes related to the Ginibre Bose gas of Brownian loops and to the dissolution in R^d of Ginibre's Fermi-Dirac gas of such loops. The latter will be identified as a Gibbs perturbation of the ideal Fermi gas. On generalizing these considerations we will obtain the existence of a large class of Gibbs perturbations of the so-called KMM-processes as they were introduced by Nehring (2012). Moreover, it is shown that certain "limiting Gibbs processes" are Gibbs in the sense of Dobrushin, Lanford and Ruelle if the underlying potential is positive. And finally, Gibbs modifications of infinitely divisible point processes are shown to solve a new integration by parts formula if the underlying potential is positive.
Amongst the many complex processes taking place in living cells, transport of cargoes across the cytosceleton is fundamental to cell viability and activity. To move cargoes between the different cell parts, cells employ Molecular Motors. The motors operate by transporting cargoes along the so-called cellular micro-tubules, namely rope-like structures that connect, for instance, the cell-nucleus and outer membrane. We introduce a new Markov Chain, the killed Quasi-Random-Walk, for such transport molecules and derive properties like the maximal run length and time. Furthermore we introduce permuted balance, which is a more flexible extension of the ordinary reversibility and introduce the notion of Time Duality, which compares certain passage times pathwise. We give a number of sufficient conditions for Time Duality based on the geometry of the transition graph. Both notions are closely related to properties of the killed Quasi-Random-Walk.
Since 2011 the Comorian Island of Mayotte has been France’s 101st département, thereby becoming part of the European Union. As a result, France has consolidated and strengthened its strategic position in the Indian Ocean. With the change of political status in 2011, new developments have occurred in Mayotte. It is still unclear whether the expected economic boom, extensive social benefits or injection of EU regional funds can help to alleviate poverty and raise living standards. There is concern, however, that massive immigration to Mayotte from the surrounding territories is diminishing any progress and will continue to do so. Not only France but also the EU will have to adapt to new immigration problems due to this new external border. In this situation one thing is clear: the language contact between French and the local languages, which is the result of political developments, is leading to new dynamics. The diglossic situation east of Africa, between French as the dominant language and local languages like Shimaoré or Shibushi spoken in Mayotte will become more marked in the next few years.