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Dans l'enseignement supérieur, le recours aux dispositifs électroniques pédagogiques en complément des cours présentiels ou dans des dispositifs de formation à distance est en constante progression et a fait l'objet de nombreux travaux de recherche. Avec un décalage temporel et avec ses spécificités, le Liban n'échappe pas à cette évolution, ainsi depuis plusieurs années sont apparus les premiers environnements d'enseignement et d'apprentissage électroniques académiques accessibles aux étudiants, à tout moment et de tout lieu, jouant le rôle d'un complément du manuel de base et d'un supplément aux cours présentiels, tout en proposant, éventuellement, un encadrement en ligne. Ce phénomène n'a pas encore été l'objet de recherches. Intitulée « Les dispositifs électroniques pédagogiques conçus pour l'encadrement en ligne des cours présentiels universitaires : le cas du Liban », cette thèse porte sur le déploiement des technologies de l'information et de la communication pour l'éducation (TICE) dans le cadre libanais, elle s'intéresse au e-learning et à la mise en ligne des cours dans les établissements de l'enseignement supérieur. Elle a pour objet d'analyser les choix effectués par les décideurs et d'étudier les stratégies déployées par les universités privées et celle publique. S'interrogeant sur l'intelligibilité des usages libanais, cette thèse cherche à comprendre le processus de mise en ligne des cours tout en essayant de tracer la genèse des cours en ligne au Liban. Initiée en octobre 2005, menée en cotutelle, ce qui a favorisé les comparaisons internationales, cette thèse traite d'un sujet certes embryonnaire, mais en constante évolution. En effet, plusieurs universités se sont aventurées dans l'intégration des TICE et ont déjà entamé l'expérience du e-learning depuis déjà une décennie ; néanmoins, les études, les recherches et les publications dans le domaine restent assez timides... Ce qui constitue une motivation importante pour l'étude du terrain libanais dans un contexte où, à ce jour, la règlementation est très lacunaire.

Made available in DSpace on 2016-04-27T14:32:34Z (GMT). No. of bitstreams: 1 Valdenice_Minatel_Melo_de_Cerqueira.pdf: 1371758 bytes, checksum: 26d34f789203cbc9d4fbbe73aaa1101f (MD5) Previous issue date: 2005-06-10 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This work deals with the pedagogical mediation in digital environments for distance learning. More specifically, it tries to understand which characteristics of pedagogical mediation, at web studying chattings, open up conditions to collective contribution. The focus of the research s analysis is an academic subject known as "Teachers formation at digital environments", carried out in 2003, at PUCSP, as part of a major for a stricto sensu Master s degree, and made available to student teachers through TelEduc software. The qualitative research was conducted as a study of case. For the interpretation of chats, the theories of Edgard Morin, José Armando Valente, Mikhail Bakhtin, Paulo Freire and Lev Semenovitch Vygotsky were used as analytical support. The theoretical concepts were articulated so as to establish the analysis foundation as well as to understand the net involving the data and joining the mentioned interpretation. As result of this joint between practice and theory, there have been identified "embroideries" whose texture shows the characteristics of the pedagogical mediation applied in the scope of contribution practices between participants of the referred subject: intermediation, co-mediation, encourage to contribution as well as to reaching autonomy, organization and joint of information, coherence between practice and theory, dialogueness, affection, collaborative work and spiral of learning. The analysis made possible to glimpse the broadness and the limits of educational use of chat, besides the role of mediation in the context of the use of such tool, and the adequacy of this same device to the application of distance learning in postgraduate studies intended for research developments. / O presente trabalho trata da mediação pedagógica em ambientes digitais de ensino e aprendizagem a distância. Mais especificamente, procura entender quais as características da mediação pedagógica, em situações de chat educacional, que criam condições para a colaboração, tendo como foco de análise a disciplina Formação de professores em ambientes digitais , realizada na PUCSP em 2003, como parte do curso de mestrado stricto sensu, por meio da plataforma TelEduc. Nesse contexto, a pesquisa qualitativa ocorreu na modalidade estudo de caso. Para a interpretação dos chats, foram utilizadas as teorias de Edgard Morin, José Armando Valente, Mikhail Bakhtin, Paulo Freire e Lev Semenovitch Vygotsky. Os conceitos teóricos foram articulados para dar prosseguimento à fundamentação das observações, bem como para entender as tramas que envolvem os dados e que se corporificam na respectiva interpretação. Como resultado dessa articulação entre teoria e prática, foram identificados bordados cujas tessituras evidenciam as características da mediação pedagógica realizada no âmbito das práticas de colaboração entre os participantes da já referida disciplina: intermediação, co-mediação, encorajamento à colaboração e à busca da autonomia, organização e articulação de informações, coerência entre teoria e prática, dialogicidade, acolhimento, trabalho colaborativo e espiral de aprendizagem. A análise possibilitou vislumbrar a abrangência e os limites do uso educacional do chat, o papel da mediação no contexto de uso dessa ferramenta, bem como a adequação desta às iniciativas de EaD na pós-graduação orientada para o desenvolvimento de pesquisas.

Made available in DSpace on 2016-04-27T16:58:33Z (GMT). No. of bitstreams: 1 Shirley Ferreira Signorelli.pdf: 4346228 bytes, checksum: a37d23996da101385ce1df722242946c (MD5) Previous issue date: 2007-10-31 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The purpose of this investigation was the elaboration and implementation of a virtual environment for a part time distance course for students of the Computer Science and Systems of Information. The students failed in a former discipline that approaches topics of elementary Mathematics. It happened in a particular university in the city of São Paulo. Our focus was on analyzing this environment, the tools and interactions that happened on distance mode, about the content of real function of one variable. The methodology used, design-based research, favored proposing and analyzing the activities about this topic, as well as their reorganization and, the re design of the environment. The Blackboard platform and the used tools were analyzed based on Chaves (2000) criteria, and it seemed efficient as a virtual environment for the learning in our course. However, we leaved some critical and suggestions for future works, mainly about the role of the tools for communication within part time distance courses. The analysis of the students and teacher speeches' was based on the Model of Argumentative Strategy (CASTRO et al, 2004) and allowed to raise some aspects on the understanding of Real Functions of one variable, as they were privileged in the different interactive spaces such as forum, chat, email and daily log. Aspects like the meaning production in Mathematics can be produced due to the authority of a teacher or of another student who is considered good by the classroom peers, or based on everyday language usage or on cultural characteristics. Moreover, we found that besides the students lack of prerequisite elementary mathematics, there is a lack of a culture for on-line courses / Nesta pesquisa objetivamos a elaboração e implementação de um ambiente virtual para um curso semipresencial, para estudantes dos cursos de Bacharelado em Ciência da Computação e Sistemas de Informação de uma instituição particular na cidade de São Paulo, dependentes na disciplina que aborda tópicos de pré-calculo. Nosso foco recaiu na análise do ambiente, da viabilidade das ferramentas e das interações que ocorreram a distância, no que tange o conteúdo de Funções de uma Variável Real. A metodologia utilizada, design research, permitiu propor e analisar as atividades sobre este tópico, incluindo a reestruturação e complementação deste ambiente. A plataforma Blackboard e as ferramentas foram analisadas segundo critérios definidos por Chaves (2000) e se mostraram eficazes como ambiente virtual de aprendizagem atendendo, para nosso curso, os critérios necessários. Entretanto, deixamos algumas críticas e sugestões para trabalhos futuros, principalmente quanto o papel do uso de ferramentas de comunicação em cursos semipresenciais. A análise dos discursos dos alunos e docente baseados no Modelo de Estratégia Argumentativa (CASTRO et al, 2004) permitiu levantar alguns aspectos sobre a compreensão de Funções de uma Variável Real que foram privilegiados nos diferentes espaços interativos como fórum, chat, e-mail e diário de rotina, tais como o fato de que a produção de significados em Matemática pode estar apoiada na autoridade do professor ou alunos bem vistos pela classe, na linguagem cotidiana e no aspecto cultural. Observamos ainda que além da falta de pré-requisitos de matemática básica, ainda há falta de cultura de trabalhos on-line

Since their discoveries, carbon nanotubes have been widely studied, but mostly in the forms of 1D individual carbon nanotube (CNT). From practical application point of view, it is highly desirable to produce carbon nanotubes in large scales. This has resulted in a new class of carbon nanotube material, called the vertically aligned carbon nanotube arrays (VA-CNTs). To date, our ability to design and model this complex material is still limited. The classical molecular mechanics methods used to model individual CNTs are not applicable to the modeling of VA-CNT structures due to the significant computational efforts required. This research is to develop efficient structural mechanics approaches to design, model and characterize the mechanical responses of the VA-CNTs. The structural beam and shell mechanics are generally applicable to the well aligned VA-CNTs prepared by template synthesis while the structural solid elements are more applicable to much complex, super-long VA-CNTs from template-free synthesis. VA-CNTs are also highly “tunable” from the structure standpoint. The architectures and geometric parameters of the VA-CNTs have been thoroughly examined, including tube configuration, tube diameter, tube height, nanotube array density, tube distribution pattern, among many other factors. Overall, the structural mechanics approaches are simple and robust methods for design and characterization of these novel carbon nanomaterials

Made available in DSpace on 2016-06-02T19:06:06Z (GMT). No. of bitstreams: 1 5369.pdf: 9612866 bytes, checksum: 5042244a0ce446b39888368498a1bff3 (MD5) Previous issue date: 2013-05-08 / Financiadora de Estudos e Projetos / The evolution of ubiquitous computing, techniques for handling continuous media and composition, representation and presentation of multimedia objects, among other areas of information technology and communication, enable the exploration and study of interesting results that can be achieved with the incorporation of these technologies in different areas of knowledge and application. The areas of Electronic Learning (EE) and Massive Online Open Courses (MOOC) were chosen to perform this kind of study and exploration. Besides providing a rich environment for research in education, the work required applied research in ubiquitous computing, human-computer interaction and multimedia systems. The work also included the development and improvement of prototypes, particularly presentation machines and capture & access systems for human activities. As a byproduct, it presents an intrumentalized classroom which can perform the ubiquitous capture of multimodal educational presentation for further generation of an equivalent multimedia learning object. These learning objects can be accessed via Learning Management System (LMS) on the Web in an asynchronous way or in synchronous sessions with professors/tutors/students. The multimedia learning objects may be used in MOOCs and as support for classroom learning. Moreover, the log of users interactions with the objects can provide clues for improvement in the educational presentation. / A evolução da computação ubíqua, das técnicas de manipulação de mídia contínua e da composição, representação e apresentação de objetos multimídia, entre outras áreas das tecnologias da informação e comunicação, viabilizam a exploração e o estudo de resultados interessantes que podem ser alcançados com a incorporação dessas tecnologias em diferentes áreas de conhecimento e de aplicação. Escolheu-se as áreas de Electronic Learning (EE) e Massive Online Open Courses (MOOC) para se realizar esse tipo de estudo e exploração. Além de propiciar um rico ambiente para pesquisas em educação, o trabalho requereu a elaboração de pesquisa aplicada em computação ubíqua, interação humano-computador e sistemas multimídia. O trabalho também envolveu o desenvolvimento e aperfeiçoamento de protótipos, particularmente de máquinas de apresentação e sistemas para captura & acesso de atividades humanas. Como subproduto, é apresentada uma sala de aula instrumentada capaz de realizar a captura ubíqua de apresentações educacionais multimodais para posteriormente transformá-las em objetos de aprendizagem multimídia. Esses objetos de aprendizagem podem ser acessados pela Web, via Learning Management System (LMS), tanto de forma assíncrona como em sessões síncronas entre professores/tutores/alunos. Os objetos de aprendizagem multimídia podem ser utilizados em qualquer contexto educacional (como MOOCs e no apóio ao ensino presencial). Além disso, pode-se utilizar o log das interações dos usuários com os objetos para encontrar possíveis alvos de melhoria nas apresentações educacionais.

Les nouvelles technologies ont beaucoup modifié l’apprentissage en général et l’apprentissage des langues en particulier. Cela, à son tour, a changé les représentations et les rôles traditionnels des acteurs impliqués dans l’acte d’apprentissage : apprenants et enseignants. Cette recherche décrit l’apprentissage à distance du français mettant au point l’apprentissage du FLE au Pakistan via Internet et les problèmes liés à cette nouvelle approche d’apprentissage en autonomie qui requiert la modification des rôles des apprenants ainsi que des enseignants en suggérant des stratégies à utiliser afin d’autonomiser et responsabiliser les apprenants habitués à une méthode d’apprentissage traditionnel qui est différente de celle utilisée dans l’apprentissage de la langue française en ligne / The technology of information and communication has revolutionized the teaching in general and teaching of language in particular. This in its turn has altered the traditional concepts of roles attributed to the actors involved in the act of learning and teaching. This research work describes the distance learning especially online learning of French language in Pakistan using Internet and the problems related to this new approach of autonomous learning that requires the modification of roles and duties of both the learner and the teacher focusing on strategies to be used in order to make the learners get used to a method of learning that is totally different from traditional learning and to make them take responsibility of their learning.