Distribuição de tensões em bocais de vasos de pressão

This work is to analyze the behavior of context concentrated stresses generated around a nozzle connected to a pressure vessel. For this analysis we used the finite element method via a computer interface, the software ANSYS WORKBENCH. It was first necessary to study and intensive training of the software used, and also a study of the ASME Code, Section VIII, which is responsible for the standards used in pressure vessels. We analyzed three cases, which differ primarily in the variation of the diameter of the nozzle in order to analyze the variation of the stresses according to the variation of the diameters. The nozzle diameters were 35, 75 and 105 mm. After the model designed vessel, a pressure was applied on the innervessel of 0.5 MPa. For the smallest diameter, was found the lowest tensions concentrated. Varying between 1 and 223 MPa. Increasing the diameter of the nozzle resulted in increased tensions concentrated around the junction nozzle /vessel. The maximum stresses increased by 78% when the value was increased in diameter from 35 to 75 mm. Since the increase in diameter from 75 to 105 mm, the values of the tensions increased around 43%. These figures emphasize that stress concentrations increased with increasing the diameter of the nozzles, but not linearly

O insumo linguístico oral em aulas de inglês como língua estrangeira para crianças: a fala do professor em foco

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Tradução anotada, autor-tradutor invisível: Richard Francis Burton na Brasiliana

The aim of this paper is to analyze the translation of the work by the translator-traveller Richard Francis Burton, Explorations of the Highlands of the Brazil, with a full account of the gold and diamond mines, made by Américo Jacobina Lacombe, trying to relate the work of the latter to the editorial goals of the Brasiliana Collection. As a subseries of the Biblioteca Pedagógica Brasileira [Brazilian Pedagogical Library] published by Companhia Editora Nacional, Brasiliana was conceived in agreement with the 1930s and 1940s policies to expand lay education and make it possible for Brazilians to get to better know the greatness of their country. The paper will focus on the numerous translator’s notes, since many of them reveal Lacombe’s didactic purpose of informing readers about Brazilian history and geography. The analysis also examines the effacement of Burton’s translations from Portuguese into English in his book.

A formação pré-serviço do professor de língua estrangeira em curso de licenciatura: crenças e reflexões em experiências de estágio supervisionado em diferentes contextos (sala de aula e teletandem)

This article aims to show the results of an institutional research in Applied Linguistics, which tries to comprehend how the initial teaching practice occurs in diversely figured contexts of foreign language teaching-learning (on-site and virtual), as well as how such contexts may mutually favor and encourage reflective and critical training of the language teacher in/for a contemporary world. It´s possible to notice a reflective attitude of four Brazilian foreign language (Spanish, English and Italian) teachers in initial training, especially regarding some aspects related to the teaching-learning languages process, such as roles of the participants; relevance of meaningful interaction; engaged cultures; teaching of a foreign language and mother tongue teaching as foreign one; teaching and learning typologically similar languages; constitution of the place to learn-teachIt´s possible to notice a reflective attitude of four Brazilian foreign language (English, Italian and Spanish) teachers in pre-service education, especially about some aspects of language teaching and learning process, such as the role of the participants; the relevance of significant interactions; the involved cultures; the teaching of a foreign language and the teaching of the mother tongue as a foreign language; the teaching of similar languages as Portuguese and Spanish; and the constitution of the place of teaching and learning languages. The results indicate that the experience of experiencing the dynamics of a conventional didactic context of language teaching (classroom), alongside to the experience of teaching and learning in a context of virtual educational settings (teletandem), it was especially important for the critical training of the future language teachers and to the awareness about the practice of teaching languages in times of technological innovation.

O modelo atômico de Bohr e as abordagens para seu ensino na escola média

The teaching of modern and contemporary Physics subjects in high school is indispensable and it was already justified by several researchers. Among the subjects which must be taught, there is, for instance, Bohr atomics model. However, as it was noticed in literature review, many didactic materials do not deal with this model adequately, since that they do not take into account Bohr ideas, which involved Planck studies on black-body radiation, Einsten theory for photoelectric effect, Rutherford experiences and atomics model and the empiric results upon the spectrums of chemical elements emission. From that, it is extremely important teaching through approaches which potentialize the learning of the model proposed by Niels Bohr. On the other hand, teachers from high schools cannot have clearness about which approaches can be applied for teaching the mentioned model. Thus, it is presented some possibilities for teaching Bohr atomics model, with examples and justifications for the use of each one. Special treatment was attributed to the teaching from Science History and Philosophy, from the reading of scientific diffusion and original scientific texts, from analogies, from comic strips and from computer simulations.

Máximos e mínimos na geometria euclidiana: uma abordagem histórica

The goal of this work is to perform a historical approach of important results about maxima and minima, on Euclidean geometry, involving perimeters, areas and volumes. As a highlight, we can mention the Dido’s isoperimetric problem and the Papus’s problem about the wit of the bees. In this context, with a concern didactic, we tried to use, whenever possible, the geometry classical formulas to the calculus of areas. On the other hand, in the case of isoperimetric inequality the techniques of differential and integral calculus became more suitable for our purposes.

Estudo da presença e importância atribuída aos animais nos artigos apresentados nos anais do Encontro Pesquisa em Educação Ambiental (EPEA)

Together with the increase of environmental degradation in the past few decades, the environmental education (EE) has emerged and grown all around the world. It is worrying the frequent assigning of stereotypes to the animals and the cases of disrespect to them. For these matters it was studied the presence and importance attributed to animals in the annals of six editions of an event of great significance in the field of Environmental Education, the meetings Pesquisa em Educação Ambiental (EPEAs). The animals were chosen for deserving more attention in the preservationist context, besides allowing the use of a great extent of activities in EE, regarding scholar and non-scholar organizations. The articles that presented descriptors related to animals in the title, keywords or abstract were analyzed in depth and characteristics such as segmentation of the studied population, locations where jobs tend to be performed, prevailing aspects and didactic material production, among others, were investigated and compared. It was also verified which current trends on Environmental Education currents are more frequently presented in the EPEAs articles, in order to map the Environmental Education in Brazil in the past few years, using as a basis an important theoretical framework in the area. Through the use of descriptors it was possible to define the articles that would be analyzed in depth, which is less than 6% of the total work published and represents that, until the sixth edition, the EPEAs have a minor amount of works concerning animal matters. In many of these articles animals were superficially worked, which demonstrates the necessity of approaches not only involving more the animals, but also addressing the complex environmental matter. Several trends were identified in various EE currents, coexisting and also conflicting in the field of Brazilian Environmental Education. It was observed, in several cases, two or more trend currents in the ...

Contos de fadas e sequências didática: uma abordagem no ensino fundamental II

The proposal of this work is based on the elaboration of didactic sequences from fairy tales, for students of Elementary School, during reinforcement classes of Portuguese language. It is deemed appropriate to use this genre, because it gives to the child and to the adolescents a pleasurable reading, approaching them of playful situations. As a main goal of this work, this research aimed the preparation of didactic sequences using fairy tales in the classroom, as well as encouraging the reading for these students. The intention was also the internalization of the narratives and the messages conveyed by them, associating them to everyday situations. We used the deductive method, in which we initially organized the approach in the classroom and the teaching sequences from theoretical assumptions and materials already designed

Tecnologia assistiva e perfil funcional dos alunos com deficiência física nas salas de recursos multifuncionais

Pós-graduação em Educação - FFC

Memórias das aritméticas da Emília: o ensino de aritmética entre 1920 e 1940

Pós-graduação em Educação Matemática - IGCE

Aprendizagens profissionais da docência nos anos iniciais do ensino fundamental no contexto das avaliações em larga escala de matemática

Pós-graduação em Psicologia do Desenvolvimento e Aprendizagem - FC

Intervenção pedagógica e construção de noções étnicas por meio da pesquisa escolar: um estudo piagetiano

Pós-graduação em Educação - FFC

Formação e profissionalização docente: análise do Programa Especial de Formação Pedagógica da UTFPR - Câmpus Medianeira

Pós-graduação em Educação - FFC

Salas de recursos multifuncionais: contexto de Inclusão Escolar para os alunos público-alvo da Educação Especial ?

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Análise comparativa de tensões e deformações específicas em uma estrutura treliçada, utilizando abordagem experimental e pelo método de elementos finitos

The process of knowledge construction is associated with physical or mechanical view of the phenomenon. In mechanical engineering courses should supplement their courses with physical or virtual learning devices to aid visualization of these phenomena. For the purpose of improving the mechanical engineering department laboratory practice was developed, through a project, a didactic device a trellis. The purpose of this work is the detailed study by comparing the theoretical results with the experimental results collected through the specific strains collected in the Catman. The study was iniatially done with nodes made of aluminum, giving results with high errors not allowing a good conclusion of results. For best results were achieved an improvement of the structure with strict we support the lattice and, thus, further study and greater quality of lattice structure