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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1011 to 1020 of 1403 (0.038 seconds)| 1011 |
Some Aspects on Coarse Homotopy Theory / Einige Aspekte der groben HomotopietheorieNorouzizadeh, Behnam 28 August 2009 (has links)
No description available.
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| 1012 |
Zeit- und Volatilitätsstruktur von Zinssätzen - Modellierung, Implementierung, Kalibrierung / Term and Volatility Structure of Interest Rates - Modelling, Implementation, CalibrationZyapkov, Lyudmil 05 December 2007 (has links)
No description available.
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| 1013 |
Border Collision Bifurcations in Boom and Bust CyclesKubin, Ingrid, Gardini, Laura 03 1900 (has links) (PDF)
Boom and bust cycles are widely documented in the literature on industry dynamics. Rigidities and delays in capacity adjustment in combination with bounded rational behavior have been identified as central driving forces. We construct a model that features only these two elements and we show that this is indeed sufficient to reproduce some stylized facts of a boom and bust cycle. The
bifurcation diagrams summarizing the dynamic behavior reveal complex cycles and in particular also abrupt changes in the nature of these cycles. We apply new insights from the mathematical theory of piecewise smooth dynamic systems - in particular, results from the theory of border collision bifurcations - and show that the very existence of borders such as capacity constraints or nonnegativity
constraints may lie behind abrupt changes in the dynamic behavior of economic variables. (author's abstract) / Series: Department of Economics Working Paper Series
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| 1014 |
Scharfe Ungleichungen für Normen von Kommutatoren endlicher MatrizenWenzel, David 30 July 2011 (has links) (PDF)
In der Dissertation werden Schranken für Abschätzungen des Kommutators in verschiedenen Normen gegeben. Den Ausgangspunkt bildet die Frobenius-Norm, für die eine überraschend kleine Schranke bewiesen werden kann. Auf diesem Resultat aufbauend lassen sich über eine spezielle Adaption der Interpolationsmethode von Riesz-Thorin scharfe Schranken bei Verwendung von Schatten- und Vektornormen weitestgehend bestimmen. Es werden ferner die Fälle untersucht, in denen die obere Abschätzung erreicht wird (sog. Maximalität). Eine wichtige Rolle spielen verschiedene Darstellungen der Ungleichung, welche vielfältige Interpretationsmöglichkeiten eröffen und Verbindungen der algebraischen Abschätzung zu einem wichtigen Satz der Differentialgeometrie über die Krümmung von Mannigfaltigkeiten aufzeigen.
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| 1015 |
How do rabbits help to integrate teaching of mathematics and informatics?Andžāns, Agnis, Rācene, Laila 11 April 2012 (has links) (PDF)
Many countries are reporting of difficulties in exact education at schools: mathematics, informatics, physics etc. Various methods are proposed to awaken and preserve students’ interest in these disciplines. Among them, the simplification, accent on applications, avoiding of argumentation (especially in mathematics) etc. must be mentioned. As one of reasons for these approaches the growing amount of knowledge/skills to be acquired at school is often mentioned. In this paper we consider one of the possibilities to integrate partially teaching of important chapters of discrete mathematics and informatics not reducing the high educational standards. The approach is based on the identification and mastering general combinatorial principles underlying many topics in both disciplines. A special attention in the paper is given to the so-called “pigeonhole principle” and its generalizations. In folklore, this principle is usually formulated in the following way: “if there are n + 1
rabbits in n cages, you can find a cage with at least two rabbits in it“. Examples of appearances of this principle both in mathematics and in computer science are considered.
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| 1016 |
Localization of Learning Objects in MathematicsDagiene, Valentina, Zilinskiene, Inga 12 April 2012 (has links) (PDF)
Mathematics learning seems to be a demanding and time-consuming task for many learners. Information and communication technology (ICT) is an attractive tool of learning for students at any level and it can provide an effective atmosphere for understanding mathematics.
The question is how to combine mathematics teaching contents, approaches, curricula, and syllabus with new media. The key issue in European educational policy (and other countries as well) is exchange and sharing digital learning resources (learning objects) among countries. In order to accumulate the practice of various countries and use the best digital resources created by different countries, it is necessary to localize learning objects (LO). The paper deals with some
problems connected with localization of LO, developed for mathematics education, and presents some solution. Software localization is mainly referred to as language translation (e.g., translation of user interface texts and help documents). However, there are many other important elements depending on the country and people who will use the localized software. In this paper, the main
attention is paid to localization of learning objects used for teaching and learning mathematics.
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| 1017 |
Mathematical Competitions for University StudentsDomoshnitsky, Alexander, Yavich, Roman 12 April 2012 (has links) (PDF)
We present several possible forms of mathematical competitions for University students. One of them is Blitz Mathematical Olympiad. It is a team competition, when all teams receive the same problem and are
allotted 10-15 minutes to come up with a solution. This cycle is repeated 6-8 times with different problems. Modern Internet technologies allow us to organize Blitz Mathematical Olympiads for the teams which are in different cities and even countries.
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| 1018 |
Modelling in Mathematics and Informatics: How Should the Elevators Travel so that Chaos Will Stop?Filler, Andreas 13 April 2012 (has links) (PDF)
Didactic proposals on modelling in mathematics education mostly give priority to models which describe, explain as well as partially forecast and provide mathematical solutions to real situations. A view of the modelling concept of informatics, which also initiates rapidly generalised deliberations of models, can also make a contribution to the spectrum of models, which are treated in a meaningful sense in mathematics lessons so as to expand some interesting aspects. In this paper, this is illustrated by means of conceptual design models – and, here, especially of process models – using the example of elevator organisation in a multi-storey construction.
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| 1019 |
Impact on Student Achievement of Teacher Participation in K-8 Mathematics Professional DevelopmentFrauenholtz, Todd, Webb, Derek F. 13 April 2012 (has links) (PDF)
The purpose of this study is to determine the impact on student achievement of elementary school teachers who participated in professional development in the content area of mathematics. Teachers participated in professional development courses and have accumulated a range from three to eighteen total credits from the summers of 1998 through 2007. The impact is measured by student achievement data collected on standardized tests.
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| 1020 |
One mathematical formula in the science textbook: looking into innovative potential of interdisciplinary mathematics teachingFreiman, Viktor, Michaud, Danis 13 April 2012 (has links) (PDF)
Our paper presents some preliminary observation from a collaborative exploratory study linking mathematics, science and reading within a technology enhanced problem-based learning scenario conducted at one French Canadian Elementary and Middle School. Presented in a form of dialogue between teacher and researcher, our findings give some meaningful insight in how an
innovative mathematics teaching can be developed and implemented using a real-world problem solving. Instead of a traditional presentation of material about lighting up homes, participating
mathematics, science and French teachers were working collaboratively with the ICT integration mentor and two university professors helping students investigate a problem from various
perspectives using a variety of cognitive and metacognitive strategies, discussing and sharing the finding with peers and presenting them to a larger audience using media tools. Our preliminary results may prompt further investigation of how innovation in teaching and learning can help students become better critical thinkers and scientifically empowered citizens.
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