Title: Leisure time activities and motor performance among school aged children Objectives: The aim of the thesis is to evaluate a level of motor performance and leisure time activities among school children aged 12 - 14 years, on elementary school Boženy Němcové in Litoměřice. We want to know, if students with extended teaching of music and aesthetics will get worse results compared to students without extended teaching. Methods: Study presents empirical quantitative research and 86 students participate in it. Level of motor performance was determined by the test battery called Unifittest 6 - 60 and structure of leisure time activities was monitored by the part of the sociological questionnaire called COMPASS II. Amount of substucaneous fat was measured by the multifrequency bioelectrical impedance analysis (BIA). We werified our hypotheses by the two sample t-test and with coefficient of effect size Cohens'd. Results: On the basis of evaluated results the statistically signifiant diference was not found in all hypotheses between comparator groups with level of significance (p ≤ 0,05). Cohens'd proved only small or no effect size, except for girls in Leger test where we proved medium effect size (d = 0,5). There wasn't signifiant diference in the structure of leisure time activities. Key words:...

Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2015-01-27T14:46:39Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Emerson José da Silva - 2014.pdf: 7690015 bytes, checksum: 913769b0dd5913e4688da0ec1491b760 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-01-28T12:58:40Z (GMT) No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Emerson José da Silva - 2014.pdf: 7690015 bytes, checksum: 913769b0dd5913e4688da0ec1491b760 (MD5) / Made available in DSpace on 2015-01-28T12:58:40Z (GMT). No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Emerson José da Silva - 2014.pdf: 7690015 bytes, checksum: 913769b0dd5913e4688da0ec1491b760 (MD5) Previous issue date: 2014-08-21 / In this work we revisit the subject Geometric Constructions into ruler and compass, using the dynamic geometry software 'Ruler and Compass' as an auxiliary tool in the teaching and learning of geometry, building examples and suggestions for activities with the software. Brought to the fore the possibility of building into ruler and compass, solutions to several problems that can be presented as algebraic expressions. Yet addressed the possibility of constructing a number, using only ruler and compass and discuss the famous and historical problems of geometrical construction: doubling the cube, squaring the circle and the trisection of the angle. We add appendices which present other possible constructions and also bring suggestions for activities with ruler and compass software. Keywords / Neste trabalho revisitamos o assunto Construções Geométricas via régua e compasso, utilizando o software de Geometria Dinâmica ‘Régua e Compasso’ como uma ferramenta auxiliar no ensino e aprendizagem de Geometria, construindo exemplos e sugestões de atividades com o software. Trouxemos à tona a possibilidade da construção, via régua e compasso, de soluções para vários problemas que podem ser apresentados por expressões algébricas. Abordamos ainda a possibilidade da construção de um número, utilizando-se apenas a régua e o compasso e discutimos os célebres e históricos problemas de construção geométrica: duplicação do cubo, quadratura do círculo e trissecção do ângulo. Acrescemos ainda apêndices onde apresentamos outros tipos de construções possíveis e também trazemos sugestões de atividades com o software ‘Régua e Compasso’.

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Tato diplomová práce se zabývá matematickými modely kráčejících robotů. Dva z těchto modelů jsou vybrány a analyzovány. Pasivní model "rimless wheel" , který slouží jako základ pro další, složitější modely, je podrobně analyzován. "Compass gait" model dvounohého robota je v práci analyzován a numericky simulován v programovacím jazyce Python. Metoda pro nalezení podmínek pro pasivní chůzi robota je rovněž implementována.

Theoretical information about different satellite navigation systems used for determination of position. Special attention is attended to system GPS. There are consulted main principles of the GPS and some error sources. Application of differential GPS for minimization of these errors is discussed. Next part is about examples of basic principles for measuring earth magnetic field. Last chaps are about practical realization of mentioned DGPS, which is applied for outdoor mobile robot navigation. There is described hardware structure, software utilities and application of an aided tool for GPS - electronic compass. Some practical measurements and results are presented.

One of the most problematic issues facing community colleges is developmental education. In the last decade, more research has been conducted examining developmental education. The purpose of this study was to evaluate the effectiveness of developmental math in a rural community college setting. Is developmental math an effective intervention? This study consisted of first time college students who took the COMPASS placement exam and scored 18-48. Students who scored 18-33 were placed in Math 098 (N=241) and received the developmental intervention. Math 098 is a semester-long course designed to prepare students for college-level math coursework, and it served as the intervention. Students who scored 34-48 were placed in Math 100 (N=469) and did not receive the developmental intervention. Because this represents a bandwidth close to a cut-score, these 2 groups are viewed as equivalent (Trochim, 2008). The initial intent of the study was to implement a regression-discontinuity design, but this failed to meet two necessary conditions. The researcher then executed an ANOVA, a series of chi-square goodnes-ofit procedures, and 2 binary logistic regressions in order to determine if any significant differences and/or relationship existed between treatment and control groups. Data were collected for this retrospective, quantitative research study from the Office of Institutional Effectiveness at the selected site. The selected site represents a medium-sized, rural community college located in the South. The findings in this study illustrate that those students who received the develomental intervention reported a statistically significant higher cummulative college GPAs than those who did not. The findings also illustrated that a statistically significant difference existed in regards to grades. Therefore, there was a statistically significant difference in grade distribution between both groups. When withdrawals and grades were evaluated together, no statistically significant distribution was observed. Two binary logisitic regressions were also conducted. No relationships were statistically significant between groups regarding Math 100 pass/fail rates or Math 100 completion rates. The researcher concluded that the findings suggest that Math 098 is an effective treatment for student achievement. The researcher recommended execution of more studies that replicate this model and examine rural populations.

[pt] O objetivo deste trabalho é trazer à tona conceitos importantes da geometria no plano euclidiano sob o título de construções geométricas, cada vez mais esquecidos nos currículos escolares brasileiros. Nossa primeira ideia é mostrar a dificuldade que professores do ensino médio poderão encontrar ao tentar descobrir quais conceitos validam suas práticas já que os argumentos que validam a possibilidade ou a impossibilidade de algumas construções geométricas residem numa álgebra abstrata de difícil compreensão e domínio por parte dos professores, sobretudo aqueles que não cursaram disciplinas mais avançadas em matemática. Vamos comentar sobre os principais problemas da antiguidade que motivaram os matemáticos às descobertas de novas propriedades, apresentar tais construções geométricas e apresentar uma descrição algébrica das construções geométricas. A ideia é que através da álgebra abstrata podemos obter argumentos que validem a possibilidade e impossibilidade de tais construções e assim aumentar a cultura matemática do professor do ensino médio e não transformá-lo num expert no assunto. / [en] The main purpose of this work is to rescue the important concepts in geometric constructions. Concepts that are being progressively forgotten by Brazilian curriculums in schools. First, we want to present the difficulties that high school teachers might face when they will try to formalize concepts like the possibility or not to construct some figures in the Euclidean plane, especially those who have not studied advanced math courses at undergraduation. We comment on the main problems of antiquity that led mathematicians to new discoveries properties, we present geometric constructions as well as an algebraic description of these geometric constructions. The idea is that through abstract algebra we can present arguments about the possibility or impossibility of such constructions. In this work, we will comment that abstract algebra will help teachers to validate some arguments that involves the possibility or not to construct some figures as well as to enlarge high schools teachers culture, not trying to make them experts in the subject.

Research in Unmanned Air Vehicles (UAV's) continues to push the limitations of size and weight. As technical advances have made UAV's smaller and less expensive, they have become more flexible and extensive in their roles. To continue using smaller and less expensive components while retaining and even enhancing performance requires more sophisticated processing of sensor data in order for the UAV to accurately determine its state and thereby allow the use of feedback in controlling the aircraft automatically. This work presents a three-stage state-estimation scheme for the class of UAV's know as Miniature Air Vehicles (MAV's). The first stage estimates pitch and roll, the second stage estimates heading, and the third stage produces a position estimate and an estimate of wind speed and direction. All three stages make use of the extended Kalman filter, a framework for using a system dynamic model to predict future states and to update the predictions using weighted sensor measurements as they become available, where the weighting is based on the relative uncertainty of the dynamic model and the sensors. Using the three-stage state esti-mation scheme, significant improvements in the estimation of pitch, roll and heading have been achieved in simulation and flight testing. Performance of the navigation (position and wind) stage is comparable to an existing baseline algorithms for position and wind, and shows additional promise for use in dead reckoning when GPS updates become unavailable.

Die vorliegende Arbeit geht der Forschungsfrage nach: „Wie befördern Marketingmaßnahmen nachhaltigkeitsorientierte Bekleidungsunternehmen, dass Kund:innen sich selbstbegrenzen im Konsum?“, da der Konsum und seine Begrenzung zu den drängendsten Themen unserer Zeit gehören. Es wird untersucht, wie eine breite Verhaltensveränderung hin zu nachhaltigeren Konsummustern möglich ist und welche Verantwortung Unternehmen (dafür) haben. Anhand der Konzepte Ethischer Kompass, Drei-Ebenen-Paradigma abstrakter Ordnung und Marketingmix kann diese wirtschaftsethische Unternehmensverantwortung realwirtschaftlich umgesetzt werden. Auch Bekleidungskonsument:innen werden untersucht, was sie (normativ) wollen und welche Wirklichkeiten sie von ihren Zielen abhalten. Parallel werden die Erkenntnisse für Verhalten in drei ethisch gehaltvolle Klassen von Handlungsbedingungen eingeordnet, die Verhalten nachvollziehbar machen. Mittels einer Fallstudienanalyse kann dargestellt werden, dass das grundlegende Nichtschädigungsgebot nicht nur in Marketingmaßnahmen umgesetzt wird, sondern auch als Unternehmensziel definiert wird. Dies reicht jedoch noch nicht aus, dass sich Bekleidungskonsument:innen dauerhaft selbstbegrenzen können, obwohl sie es wollen.

Le travail présenté dans cette thèse porte d’une part sur le développement et la caractérisation d’une nouvelle génération de détecteurs Micromegas (MICROMEsh GAseous Structure) pour l’expérience COMPASS au Cern, et d’autre part sur l’estimation de la contribution de canaux diffractifs à la production de pions et de kaons, dans le cadre de l’étude des fonctions de fragmentation de quarks en hadrons à COMPASS. De nouveaux détecteurs Micromegas d’une surface active de 40 x 40 cm² sont en cours de développement pour le futur de l’expérience COMPASS, à partir de 2015. Ces détecteurs devront fonctionner dans des flux de muons et hadrons approchant 8 MHz/cm². Pour cela, une zone centrale d’environ 5 cm de diamètre, traversée par le faisceau, sera constituée de 1280 pixels, et des technologies permettant de fortement réduire l’impact des décharges seront adoptées. Quatre prototypes de géométrie finale utilisant deux types de technologies de réduction des décharges différentes ont été produits au Cern et testés en conditions réelles à COMPASS entre 2010 et 2012. Trois d’entre eux sont des détecteurs hybrides utilisant une feuille GEM (Gas Electron Multiplier) en tant qu’étage de préamplification pour réduire la probabilité de décharge. Le dernier détecteur est équipé d’une structure résistive à « résistances enterrées », permettant la réduction de l’amplitude des décharges. Leurs performances sont présentées dans cette thèse. L’impact de ces résultats sur la production et la mise en œuvre de la série finale de détecteurs est également discuté. Les fonctions de fragmentation de quarks en hadrons l’hadronisation d’un quark de saveur q en un hadron h. Ces fonctions universelles interviennent dans l’expression de la section efficace de nombreux processus. Elles sont accessibles à COMPASS via la réaction de diffusion profondément inélastique semi-inclusive de muons sur des nucléons. Les observables permettant leur extraction dans ce cadre sont les multiplicités de hadrons, soit le nombre moyen de hadrons produits par événement de diffusion profondément inélastique. Les mésons vecteurs issus de processus diffractifs produisent également des pions et kaons par leur désintégration. Ces processus n’impliquant pas l’hadronisation d’un quark, il semble justifié de ne pas les comptabiliser dans la mesure des multiplicités. Ce travail propose une étude Monte-Carlo des contributions de la production diffractive de mésons vecteurs rho et phi à la production de hadrons léger et aux événements inclusifs. Des facteurs de correction des multiplicités sont finalement établis. Enfin, l’effet de cette correction sur l’extraction des fonctions de fragmentation en pions est présenté. / This thesis is dedicated to the development and characterisation of a new generation of Micromegas (MICROMEsh GAseous Structure) detectors for the COMPASS experiment at Cern, and the estimation of the diffractive processes’ contribution to the production of pions and kaons, concerning the study of the quark fragmentation functions into hadrons at COMPASS. New Micromegas detectors with a 40 x 40 cm² active area are being developed for the future physics program of the COMPASS experiment starting in 2015. These detectors will have to work in high muon and hadron flux (close to 8 MHz/cm²). In this context, a central area of about 5 cm diameter, crossed by the beam, will be composed of 1280 pixels, and discharge-reduction technologies will be used. Four prototypes with a final read-out geometry, using two different discharge-reduction technologies have been produced at Cern and studied in nominal conditions at COMPASS between 2010 and 2012. Three are hybrid detectors using a GEM (Gas Electron Multiplier) foil as a preamplification stage to reduce the discharge probability. The other is equipped with a so called “buried resistors” resistive structure allowing to strongly reduce the discharge amplitude. Their performances are presented in this thesis. The impact of these results on the production and implementation of the final series of detectors is also discussed. Quark fragmentation functions into hadrons describe the hadronisation of a quark of flavor q into a hadron h. These universal functions take part in the cross-section expression of several processes. They can be accessed at COMPASS via semi-inclusive deep inelastic scattering of muons off nucleons. The relevant observables for fragmentation function extraction are hadron multiplicities, corresponding to the mean number of hadrons produced per deep inelastic scattering event. Vector mesons produced by a diffractive process can decay into pions and kaons. As such processes do not involve quark hadronisation, they should a priori be excluded from multiplicity measurements. This work presents a Monte-Carlo study of the impact of diffractive rho and phi production on light hadrons and inclusive events yields. Multiplicity correction factors are finally established. The effect of this correction on the extraction of pion fragmentation functions is also discussed.