Orientador: Prof. Dr. Sinuê Dayan Barbero Lodovici / Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Mestrado Profissional em Matemática em Rede Nacional, 2016. / Geometry is present in many of our contemporary activities, which allows us to search for more contextualized teaching strategies in order to make the learning process more meaningful to the student. Folding square papers to create origami, seems, to some extent, something simple, seeing that since our childhood, we play folding paper, making boats, balloons or even aircrafts. However, much more than just folding randomly, Origami is based on basic geometry and without realizing it, we work with angles, planes, lines and points, enabling several ways to work with Geometry with this technique inside the classroom, in a playful and interesting way, arising the students¿ curiosity. Thus this thesis aims to present a proposal to approach in a more playful way the fundamental knowledge of Euclidean Geometry through Origami. In this work we broach two of the three classic and insolvable problems of Euclidean geometry using the ruler and the ideal compass, showing some possible elementary frames with only these two instruments. We also mention the constructability of certain numbers using the ruler and the ideal compass. Finally, we discourse about the Japanese technique of Origami, the axioms that substantiate its geometry as well as demonstrate the resolution for two of these insolvable problems: the angle trisection and the duplication of a cube. / A Geometria faz-se presente em várias de nossas atividades contemporâneas, o que nos permite buscar estratégias de ensino mais contextualizadas, de maneira que a aprendizagem seja mais significativa ao aluno. Fazer dobraduras em papel parece, até certo ponto, algo simples, visto que, desde a nossa infância brincamos com a dobradura em papel, seja fazendo barcos, balões ou aviões. Porém, muito além do ato de apenas dobrar de maneira qualquer, o Origami é fundamentado em conhecimentos básicos da Geometria e sem percebermos, trabalhamos com ângulos, planos, retas e pontos, possibilitando diversas formas de se trabalhar a Geometria com esta técnica em sala de aula, de maneira lúdica e interessante, despertando a curiosidade do aluno. Desta forma, esta dissertação busca apresentar uma proposta para abordar de maneira mais lúdica os conhecimentos fundamentais da Geometria Euclidiana através do Origami. Neste presente trabalho abordamos sobre dois dos três problemas clássicos e insolúveis da Geometria Euclidiana utilizando a régua e o compasso ideais, abordando algumas construções elementares possíveis com apenas esses dois intrumentos. Abordamos também sobre a construtibilidade de determinados números utilizando a régua e o compasso ideais. Por fim, discorremos sobre a técnica japonesa do Origami, os axiomas que fundamentam sua geometria, bem como a demonstração da resolução de dois desses problemas insolúveis: a trissecção do ângulo e a duplicação do cubo.

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.