900 resultados para ETL Conceptual and Logical Modeling


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Most of the hydraulic turbines that are running in the world are the Francis type, because they are able to fit a wide range of head and flow. We also can declare that most of the installed hydraulic energy up to this date is generated by this type of turbine. On the other hand, if we pay attention to mechanical details of a Francis turbine we will see that among the three most used types it is the one that presents the more complex design. And, the simplest one is the Pelton type, whereas the Kaplan is the one less utilized. This work aims to develop the hydrodynamic calculation of a Francis turbine as well as to obtain its assembly drawing and 3D modeling drawing. In this way all details must be shown therefore needing a complete knowledge about this issue. Both 2D and 3D drawings help much if one wants the machine to be running in its power house. It is well noted that most of the entities that design and manufacture the Francis turbines are not brazilian. In this way the more we study how to design this kind of machine the more is our contribution to our country in order to conquer technology and manufacture Francis turbines

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This study presents the results of a study on the development of the concept of force and their possible applications in physics teaching. The historical study has focused on Aristotelian natural philosophy, medieval theories of strength in impressed and on classical Newtonian mechanics. The Newtonian concept of force was also an object lesson of physics analyzed in this study. In this lesson, conducted in a preuniversity course, spontaneous conceptions or alternative conceptions of students about the concept of force proved very entrenched, resulting in studies on the Model Change on Conceptual and epistemological obstacles in view Bachelardian. The theoretical frameworks adopted led us to trace parallels between spontaneous conceptions revealed by the students and some views about the concept of force found in the study of history. The results show that while some old conceptions have been replaced by scientifically Newtonian concept of force, they are still present in the students' ideas and resist to changes even after the study of Newton's laws. Like main result shows that the history of science can be a great ally for the deconstruction of alternative conceptions, particularly when these concepts were previously presented and overcome the course of history of the development of a concept

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Educação - FFC

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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The use of computers in childhood education makes it possible for them to acquire knowledge in a fun way through games. This paper describes the experience of implementing the course “Computers for Children”, which is part of a University Extension Program at the School of Dentistry at UNESP - Araraquara. This course is offered to children aged 5-7 years old and it aims, not only, to offer children, via computer, a direct contact with new teaching technologies, but also, to help them develop both their motor and logical thinking abilities through educational games. The children that participated in this course are from the Children’s Center “Casinha de Abelha” at the UNESP -Araraquara and also from the Municipal Recreation and Educational Centers also in Araraquara, SP, Brazil. The software resources used in this course to teach computer skills are the educational games “Coelho Sabido Maternal”, “A Estrela Cintilante” and “Festa dos Dentinhos”. The children’s learning and the level of difficulty in using the computer as a tool were evaluated. It was possible to conclude that the course has been contributing to the digital inclusion of children aged 5-7 years old, in addition to training their visual and audio perception, their motor coordination and memorization, hence developing skills that are essential to the children’s literacy process.

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The aim of this research was to investigate how the gender representations by young people affect how they interpret and resolve a situation of moral conflict at school. It starts from the references of the Theory of the Organizing Models of Thinking and of critical perspectives on the studies of gender as contributors of conceptual and methodological aspects in the analysis of the psychic functioning. Information was raised with 400 youngsters (15 to 21 years of age) from public and private schools, who answered in writing four questions about feelings, thoughts, and the duty of the characters (boys or girls) before a situation of homophobia at school. The perspective of the gender in the conflict resolution was analyzed taking into account the sex of the characters and the sex of the participants. The results show that the gender representations have an essential role in the manner in which the youngsters resolve interpersonal conflicts, highlighting the reproduction of stereotypes in the social relations among genders at school.

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Physical education in their school environment can contribute positively in the training of students as it is in this discipline that many students feel more motivated to discuss and reflect on conflicts related to school life or in society. In this study we treat the rugby exploring attitudes and values that are present in this sport, considered important for the development of the student, with the methodological approach the dimensions of the contents developed by Coll et al. (2000) and Zabala (1998). Thus, the aim of this study was to develop rugby content emphasizing the values linked to it with students of the 5th year of primary education in a public school in the city of Rio Claro / SP. Among the values are integrity, passion, solidarity, discipline and respect that will be developed through conceptual and procedural lessons about rugby and its educational values, also taking advantage of situations up to during classes for discussions. The survey was conducted for 3 months. The evaluation was by holding a tournament organized by the students and by the researcher to observe what they learned regarding the dimensions of rugby contents (conceptual, Procedural and Attitudinal) and an essay where students expressed the experiences. As a result we see the importance of working educational values in society and the implementation of educational sports at school as a motivational tool. With the contribution of this research, it is expected that rugby can be worked in schools as an educational sport for the training of the individual and the development of physical culture of the students

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Pós-graduação em Educação Matemática - IGCE

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Pós-graduação em Engenharia de Produção - FEB

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The work shows the importance of process modeling in industrial flat field fashion design. This was achieved by a qualitative study identifying vision of modelers, students and teachers about this stage of development and production clothing product in the regional center of Londrina – PR. This research allowed the development of methodological guidelines for the teaching and preparation Modeling Industrial flat clothing.

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By establishing a relationship among several sections of Biology, the theory of the evolution enables a more systemized and less fragmented education of this science. However, students seem to have difficulties of understanding the concept of biological evolution, by virtue of misunderstanding conceptual and historical data present in textbooks, among other causes. One of these mentioned distortions is the shock between Lamarck and Darwin’s ideas. We aimed, in this work, to investigate the understanding of Biology’s students in pre-service teachers education concerning the Lamarck and Darwin’s theories at different moments of the Evolution discipline. For this, some steps had been followed: 1) Verification of the previous conceptions; 2) Elaboration of a pedagogical material, containing diverse historical texts of primary and secondary sources; 3) Debates in two didactic modules, using the pedagogical material elaborated; 4) Analysis of the conceptions constructed by the students, from the didactic intervention. The results obtained show the preconceptions of the students interviewed, concerning the Lamarck and Darwin’s theories, resemble the explanations presented in textbooks and the insertion of historical texts in the Evolution lessons can be an interesting strategy to construction of knowledge of this theme

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This paper presents an analysis of the content in acoustics present in physics textbooks recommended by PNLEM, which used the same criteria of evaluation from used by experts in the analysis of such books. In this way, we observed that such texts have evolved little in comparison with the textual presentations reviewed in 1998 and published in the journal Science and Education [1], which were analyzed ten physics textbooks for high school, among which the most commom, at the time, in Brazilian schools. Although we identified the inclusion of some aspects of the culture of sound and music, there are still several conceptual and historical distortions, besides the little importance has been given to links CTSA, among them, studies of soundscapes that, even, are mentioned.