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  • About
  • 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.
71

Medidas da velocidade da luz usando observações e simulações astronômicas das luas de Júpiter

Valido Filho, Manoel Messias Pereira 25 July 2016 (has links)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / In this work we propose an interdisciplinary modular teaching sequence on the measurement of the speed of light which is compatible with the traditional basic education’s sillabus. Based on the Römer method to measure the time difference between the occultation of Jupiter's moons in different orbital configurations with respect to the Earth, we developed educational activities that include: (a) observations of Jupiter's moons occultations through amateur telescopes; (b) data analysis using professional Astronomy softwares; (c) simulations using the software Stellarium and (d) the use of spreadsheets for the calculations involved to explore the physics contents. The modules can be applied independently and they are associated to educational products like didactic sequences, tutorials, video tutorials and info-animation in PowerPoint to support the lectures. We add three extra classes to the usual curriculum, which however can be easily adapted to the usual lecture. For these classes we prepared two info-animations employing the Peer Instruction and Just-in-time teaching methods besides practical activities centered on the students, following the Meaningful Learning approaches. With these resources we explore kinematics concepts (linear and circular movements), systems of reference, vectors and scientific epistemology. By mean of a pre and post-tests using questions from the High School National Exams (ENEM) involving the topics of Physics and Astronomy proposed in this work, we verified a considerable progress in the pattern of responses before and after our intervention to more than 90% of the addressed questions. Based on publicly available data by the National Institute for Studies and Educational Research (INEP) we identify a significantly higher yield of right answers of our students when compared with the average responses of all students from Sergipe who participated of the National Exams. Methodological corrections to this work based on the problems identified during the application of our products are proposed. / Neste trabalho propomos uma sequência didática modular, de caráter interdisciplinar e compatível com o currículo do ensino básico, sobre a medida da velocidade da luz. Inspirados no método de Römer para medir a diferença de tempo entre as ocultações das luas de Júpiter em configurações orbitais distintas com relação à Terra, elaboramos atividades que contemplam: (a) observações das ocultações das luas de Júpiter por meio de telescópios amadores; (b) análise de dados por meio de softwares profissionais da Astronomia; (c) simulações das observações utilizando o software Stellarium e (d) o uso de planilhas tanto para os cálculos quanto para explorar a física envolvida. Os módulos podem ser aplicados de forma independente e têm como produtos, além da sequência didática, tutoriais, vídeo-tutoriais e info-animações em PowerPoint para apoio às aulas teóricas. Utilizando três aulas complementares à grade tradicional, mas que podem ser facilmente adaptadas à grade de aulas normais, elaboramos duas info-animações em que, empregando a técnica de Instrução pelos Colegas – IpC, Ensino sob Medida - EsM e atividades práticas centradas no aluno, com base nas abordagens da Aprendizagem Significativa, exploramos os conceitos de cinemática (retilínea e circular), sistemas de referência, vetores e epistemologia científica. Por meio das asserções de um pré-teste e um pós-teste, utilizando questões do ENEM envolvendo os tópicos de Física e Astronomia, pudemos constatar uma evolução considerável no padrão de respostas antes e depois de nossa intervenção para mais de 90% das questões abordadas, com um rendimento significativamente superior à média das respostas apresentadas por todos os alunos de Sergipe participantes do ENEM, com base nos dados publicamente disponíveis pelo INEP. Correções metodológicas com base nos acerto e erros aferidos também são exploradas.
72

Sharing IT knowledge within a Swedish bank : A survey based case study of IT related training, help functions and communication / Delning av it-kunskap inom en svensk bank : En enkätbaserad fallstudie av it-relaterad utbildning, hjälpfunktioner och kommunikation

Riese, Emma January 2016 (has links)
An efficient, functioning IT environment is vital to many companies, even to those not calling themselves IT companies. How to assimilate the IT skills needed and get the IT department to share their knowledge with the rest of the organization can, however, be difficult. The aim of this thesis is to find differences between how a company’s IT department employees and other employees experience and use IT training and IT help functions. The aim is also to identify and make suggestions on what artifacts and help functions can be further developed in order to enhance learning and sharing of IT knowledge. A case study was conducted at the Swedish bank Handelsbanken. The employees’ experiences and use of IT related training, artifacts and help functions were studied through a survey that was complemented by interviews and observations. A Mann-Whitney U test was conducted on the survey answers. The result shows differences between the IT department employees and other employees in three areas: IT introduction, wish for more IT training and frequency in calling the IT help desk. Further, the result indicates that the new employee orientation, the internal handbook, e-support and IT help desk all have room for improvements. / En effektiv, fungerade it-miljö är nödvändig för i stort sett alla företag, även för dem som inte benämner sig själva som it-företag. Hur företagen kan ta till sig de it-kunskaper som behövs och få it-avdelningen att dela med sig av sin kunskap till resten av organisationen, kan dock vara svårt. Syftet med detta examensarbete är att hitta skillnader mellan hur ett företags medarbetare på it-avdelninen och andra medarbetare i organisationen upplever och använder it-utbildning och it-hjälpfunktioner. Syftet är också att identifiera och ge förslag på vilka tjänster och hjälpfunktioner som kan vidareutvecklas för att främja lärande och delning av it-kunskap. En fallstudie genomfördes på Svenska Handelsbanken. Medarbetarnas upplevelser och användning av it-relaterad utbildning, tjänster och hjälpfunktioner studerades genom en enkätundersökning, som kompletterades med intervjuer och observationer. Ett så kallat Mann-Whitney U-test genomfördes på enkätsvaren. Resultatet visar på skillnader mellan it-avdelningens medarbetare och andra medarbetare i organisationen inom tre områden:  it-introduktion, önskan att få mer it-utbildning samt frekvensen i hur ofta de ringer till it-supporten. Resultatet visar också att introduktionen för nyanställda, den interna handboken, e-supporten och it-supporten alla har förbättringsområden.
73

El programa universitario como herramienta de evaluación

Nadal Cristóbal, Andrés 21 December 2005 (has links)
Esta tesis doctoral postula que el programa de las asignaturas, es un indicador de cómo es la docencia universitaria directa del profesor e el aula, por su función preparatoria y reflexiva de la tarea docente. Se han recogido diferentes modelos de confección de programas docentes, confeccionando una guía de los elementos que debe contener un buen programa universitario. Esta guía ha sido evaluada y contrastada tanto por expertos, profesores y alumnos. También se ha realizado una evaluación del instrumento confeccionado utilizando procedimientos cuantitativos y cualitativos de análisis. Se ha llegado a la conclusión de que el programa si bien no es un elemento predictor de la buena docencia si que lo es de la mala docencia.

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