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[pt] A análise não linear de estruturas é uma tarefa de grande importância na execução de projetos eficientes e seguros, permitindo a economia de recursos materiais, ao tempo que se identifica efeitos de segunda ordem no comportamento do modelo que podem vir a ter consequências significativas. Esse tipo de análise é realizado através de algoritmos numéricos iterativos, e a visualização de resultados gráficos é essencial para auxiliar a interpretação do analista. Por isso, a análise não linear só se tornou recorrente com o advento de aplicações computacionais gráfico-iterativas. Porém, diferentemente de uma análise linear-elástica, em que os resultados fornecidos pelo programa pouco dependem do conhecimento do usuário sobre os métodos de solução, a análise não linear requer uma série de parâmetros de entrada relacionados aos métodos numéricos e, portanto, exige um conhecimento básico por parte do usuário sobre os algoritmos de solução e comportamento do modelo. Tendo isso em vista, este trabalho busca desenvolver uma ferramenta computacional de fácil uso e com uma interface gráfica simples, porém com um solver robusto, para auxiliar a aprendizagem da análise geometricamente não linear de modelos aporticados bidimensionais. Para isso o programa de análise estrutural Ftool, consagrado na comunidade de Engenharia Civil e no meio acadêmico, foi adotado para receber os novos recursos para executar a análise com não linearidade geométrica. Na nova versão do Ftool, os usuários têm a oportunidade de utilizar e testar diversas técnicas de solução do sistema não linear de equilíbrio do modelo, descritas nesse trabalho. A forma como a análise é executada permite um controle total do usuário sobre o progresso da análise. Além disso, resultados em forma de gráficos podem ser estudados no novo ambiente de plotagem do programa. / [en] Nonlinear analysis of structures is an important task for efficient and safe projects, allowing the saving of material resources and the identification of second-order effects on the behavior of structural models that may have significant consequences. This type of analysis is performed with iterative numerical algorithms, and visualization of graphic results is essential to auxiliary the interpretation of the analyst. For this reason, nonlinear analyses only became common with the advent of graphical-interactive computational applications. However, unlike a linear-elastic analysis, where the results provided by the program depend very little on the users knowledge about the solution methods, a nonlinear analysis requires a series of input parameters related to the numerical methods and thus demands a basic understanding about the solution algorithms and nonlinear structural behavior. With this in mind, this work aims to develop a user-friendly computational tool with a simple graphical interface, but with a robust solver, to assist the learning of geometrically nonlinear analysis of two-dimensional frame models. The structural analysis software Ftool, largely used by the Civil Engineering community and academia, was adopted to receive the new features to perform geometrically nonlinear analyses. In the new version of the Ftool program, students, engineers and researchers have the opportunity to use and test various solution techniques of the nonlinear system of equilibrium equations, which are described in detail throughout this work. The way the nonlinear analysis is performed allows for a full control by users over the progress of the analysis. In addition, graph results can be studied in the new plotting environment of the program.

Cette recherche propose d’étudier et de présenter des supports susceptibles d'améliorer le processus d'apprentissage des personnes malentendantes et sourdes par la médiation de nouveaux outils comme les tablettes tactiles. La question est de savoir si l’introduction de ces nouveaux outils, pourrait permettre la création de didacticiels adaptés aux spécificités cognitives des enfants sourds.Dans le contexte actuel, notre hypothèse est que les nouvelles technologies informatiques et les outils numériques (comme les tablettes tactiles) influenceraient positivement le processus d’apprentissage des élèves sourds et malentendants.En conséquence, nous avons créé un logiciel éducatif, Digisthésia, qui a été conçu et adapté aux besoins des élèves sourds et malentendants. Le but de cet outil était de développer et d’améliorer 4 des principales potentialités cognitives : l’attention, la mémoire, la vitesse de traitement et la résolution de problèmes.Notre protocole a mobilisé 80 élèves de 7 collèges de Lyon et de la périphérie lyonnaise : 40 élèves avec différents degrés de déficience auditive, des sujets implantés et appareillés (20 participants ont utilisé le logiciel éducatif Digisthésia / 20 personnes ont fait partie du groupe de contrôle) ainsi que 40 élèves sans déficiences auditives (20 participants qui ont utilisé notre logiciel éducatif sur tablette tactile / 20 élèves ont fait partie du groupe témoin). Les résultats indiquent que la médiation par les nouvelles technologies a renforcé les potentialités cognitives des élèves sourds et malentendants. Nous avons observé un progrès au niveau de l’apprentissage des participants sourds et malentendants suite à l’utilisation du logiciel éducatif Digisthésia sur tablette tactile. / This research proposes to study and present materials that can improve the learning process for people who are hard of hearing and deaf by leveraging the use of new tools such as touch tablets. The question is whether the introduction of these new tools could allow the creation of software tools that more adapted to the cognitive specificities of deaf children.In the current context, our hypothesis is that new computer-base technologies and digital tools (such as touch tablets) would positively influence the learning process for students who are deaf and hard of hearing.As a result, we have created the educational software Digisthésia that has been designed and adapted to the needs of students who are deaf and hard of hearing. The aim of this tool was to develop and improve 4 important cognitive parameters such as attention, memory, processing speed and problem solving.Our protocol mobilized 80 students from grade schools from and near Lyon: 40 students suffering from different degrees of hearing impairment, with an without cochlear implants (20 subjects used the tablet/20 subjects were part of the control group). As well as 40 students with no hearing impairments (20 subjects who used the educational software Digisthésia and the tablet /20 subjects who were part of the control group).The results indicate that leveraging the new technologies has enhanced the cognitive potential of deaf and hard of hearing students. We have seen progress in the learning of deaf and hard of hearing participants as a result of the use of tablets and our software.

nÃo hà / Para se facilitar a aprendizagem cientÃfica, à preciso investigar a concepÃÃo de estratÃgias didÃticas alternativas, procurando-se estabelecer vinculaÃÃes entre o uso pedagÃgico do computador e o laboratÃrio de prÃticas cientÃficas, como ferramentas de apoio pedagÃgico ao desenvolvimento do processo de ensino-aprendizagem. A presente pesquisa focou a concepÃÃo de estratÃgias de ensino e aprendizagem, atravÃs da realizaÃÃo de sessÃes didÃticas, de quÃmica, articulando-se pedagogicamente os laboratÃrios de experimentaÃÃo cientÃfica e de informÃtica, para facilitar, junto aos alunos, a aprendizagem significativa de conhecimentos de quÃmica orgÃnica, especificamente a funÃÃo hidrocarbonetos. Aportou-se na teoria de aprendizagem significativa de Ausubel, nos mapas conceituais de Novak e na proposta construcionista de Valente. Realizou-se o uso do software educativo Jmol, enaltecendo-se a construÃÃo colaborativa de conhecimentos, competÃncias e habilidades. Tais aÃÃes foram realizadas com a participaÃÃo de onze alunos, do 3 ano do ensino mÃdio de uma escola pÃblica do municÃpio de Beberibe, concebidas em quatro etapas: preliminar, teÃricoexperimental, prÃtico-virtual e colaborativa. A abordagem metodolÃgica da pesquisa foi do tipo qualitativa e se caracterizou como pesquisa exploratÃria. Os dados obtidos por meio dos questionÃrios, e as observaÃÃes do professor-pesquisador permitiram analisar e concluir haver indÃcios de desenvolvimento da capacidade criativa, colaborativa, que os alunos se motivaram para desenvolver novas habilidades e construir novos conhecimentos, atravÃs da realizaÃÃo pedagÃgica da prÃtica de experimentaÃÃo de quÃmica orgÃnica e utilizaÃÃo do software Jmol. O experimento da produÃÃo de etino na etapa teÃrico-experimental foi uma maneira de trabalhar de forma mais clara, dinÃmica e colaborativa a ressignificaÃÃo e construÃÃo de conhecimentos. O uso pedagÃgico e colaborativo do software Jmol na etapa prÃtico-virtual e de mapa conceitual na etapa colaborativa, possibilitaram aos alunos desenvolver uma compreensÃo mais facilitadora do conceito, escrita, representaÃÃo e visualizaÃÃo em trÃs dimensÃes de compostos da funÃÃo hidrocarbonetos. / To facilitate the science learning, you need to investigate the design of didactic strategies alternatives, and seeking to establish linkages between the pedagogical use of the computer and the laboratory of scientific practices, such as tools of pedagogical support for the development of the teaching-learning process. The present research focused on the design of strategies for teaching and learning, through the completion of didactic sessions, of chemistry, articulating it is pedagogically the laboratories of scientific experimentation and computer, to facilitate, together with the students, the significant learning of the knowledge of organic chemistry, specifically the light hydrocarbons. Disembarked on the theory that meaningful learning of Ausubel, the conceptual map of Novak and the proposal of constructionist Valente. There was the use of educational software Jmol, praising the collaborative construction of knowledge, skills and abilities. Such actions were carried out with the participation of 11 students, of the 3rd year of secondary education in a public school in the municipality of Beberibe, designed in four stages: preliminary, theoretical and experimental, practical-virtual and collaborative. The methodological approach of the research was qualitative and is characterized as exploratory research. The data obtained by the use of questionnaires, and observations of the teacher-researcher allowed to analyze and conclude there is evidence of the development of creative ability, collaborative, which the students are motivated to develop new skills and build new knowledge through the realization of pedagogical practice of experimentation of organic chemistry and use of software Jmol. The experiment of the production of ethno in step theoretical-experimental was a way of working in a more clear, dynamic and collaborative signification and construction of knowledge. The use of pedagogical and collaborative software Jmol in the stage-practical virtual and conceptual map in the stage collaborative enabled students to develop an understanding more facilitator of the concept, writing, representation and visualization in three dimensions of compounds of light hydrocarbons.

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