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O Geogebra no ensino de Física: propostas de aplicação para o ensino do movimento Harmônico simples
(Universidade Federal de São Carlos, 2017-03-15) Carmo, Rodrigo; Soares, Antonio Augusto; https://lattes.cnpq.br/8093480629202515; https://lattes.cnpq.br/2291914455874755
In this work we discuss two important movements that are part of the curriculum of the physical discipline of physics in high school, wich are classified as part of a set of phenomena that constitute as an Simple Harmonic Motion (SHM). Namely, the pendulum movement and the projection of uniform circular motion on one of the cartesian axes. In both situations we have a SHM. We have developed dynamic simulations of these phenomena using GeoGebra software. This approach allows user’s, teacher and student, the establish a visual connection between geometry, algebra and the physical concepts present in the studied subjects, it allows interactions that go beyond the conventional simulators, such as having full access to the programming used, allowing user’s to control it at will. We also elaborated two routes of usage, one for each simulator. We applied the simulators in the environment a suggestion of didactic application of our simulators.
O Banco Mundial, o neoliberalismo e a educação do campo no Brasil
(Universidade Federal de São Carlos, 2017-03-15) Moretti, Monica Fernanda Botiglieri; Bezerra Neto, Luiz; https://lattes.cnpq.br/4809080593333472; https://lattes.cnpq.br/5704541299775162
This study analyzes the participation of the World Bank in rural education projects in Brazil based on two hypotheses. Firstly, what means to a neoliberal political project justify poverty reduction and improve the living conditions of the individuals, and, secondly, in the Brazilian governments called "right" or "left", although they assume distinct political discourses, they have a lot of assumptions in common. In this way, fundamental concepts are understood and their results are fundamental for the debate that they propose to an understanding of the education elaborated for rural individuals. To do so, we use authors who discuss this theme, as well as the survey conducted with the World Bank, forming a base of research on financial projects for those who are interested in getting to know them. At the end of analytical forms we could perceive the neoliberal bias embedded in the speeches elaborated by the World Bank, as well as a trajectory of its action in the education of the Brazilian countryside. To the researchers of the area of fundamental importance for the comprehensiveness of the institution, its capillarity and influences, in this way, this study opened space for other researches in its continuity.
O curso de mestrado profissional em matemática em rede nacional à luz da teoria de Bourdieu: tensões entre matemática acadêmica e matemática escolar
(Universidade Federal de São Carlos, 2017-03-15) Farias, José Vilani de; Vilela, Denise Silva; https://lattes.cnpq.br/3915260629619142; https://lattes.cnpq.br/8155152145332951; https://orcid.org/0000-0002-3411-3420; https://orcid.org/0000-0003-2973-1301
O objeto de análise deste artigo é o curso de Mestrado Profissional em Matemática em Rede Nacional, PROFMAT, especificamente quanto à sua matriz curricular nas três diferentes versões que se sucederam à sua implantação, em 2010, até o ano de 2012. Este estudo justifica-se pela dimensão e abrangência do referido curso. Os documentos de pesquisa, constituídos pelas versões da matriz curricular, serão analisados à luz da teoria sociológica de Bourdieu, da qual se destacam para esta análise os conceitos de habitus, capital e campo. Buscar-se-á delinear o campo da matemática no âmbito desse Programa a fim de entender o que Bourdieu chama de estratégias de reprodução das relações hierárquicas – nesse caso, entre a prática matemática dos matemáticos e a prática matemática dos professores no âmbito da escola –, assim como as estratégias de conservação e legitimação de um modo de fazer matemática. Nesse sentido, serão enfatizados aspectos que aproximam ou afastam o Programa do que preconizam as recentes pesquisas a respeito da formação docente.
Estudo das propriedades físicas do composto NixPb1-xTiO3: compósito versus solução sólida
(Universidade Federal de São Carlos, 2017-03-15) Costa, Renilton Correia da; Pizani, Paulo Sérgio; https://lattes.cnpq.br/1038437165007849; https://lattes.cnpq.br/5638654222377956
In this work a physical properties study of the samples series NixPb1-xTiO3 will be presented using several experimental techniques, with emphasis on Raman spectroscopy and X-ray diffraction. For these samples, Raman scattering is a powerful characterization technique once the E (1TO), smallest wavenumber of PbTiO3, so-called "soft mode", is a very sensitive probe for small lowest structural local symmetry changes. The samples with x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 and 1.0 were synthesized by the solid state reaction method using oxides, PbO, NiO and TiO2, with 99% purity degree. The precursor oxides were milled in a high energy vibratory mill and thermal treated at temperatures ranging from 925 K to 1375 K. The atomic substitution for ions with a very different crystal radius is one of the convenient routes for the generation of composites on ATiO3-type materials. Another possible route is to use materials which the end compositions have different crystallographic structures. As materials in the form of a solid solution or composite may present different properties, their study becomes a relevant theme. Lead titanate, PbTiO3, is an important ferroelectric material which has tetragonal structure at room conditions and whose several physical properties such as structural, vibrational, thermal, dielectric, etc. are well known in the literature. On the other hand, nickel titanate, NiTiO3, has rhombohedral ilmenite structure at room conditions and is employed manly as a dry lubricant due to its high hardness or as a pigment. Moreover, it presents magnetic ordering, being hence a possible candidate to be used in new materials with magneto-electric properties. PbTiO3 and NiTiO3 are both ATiO3-type materials, so it can be expected that their combination may results in very interesting material for technological applications such as the reduction of the high loss and dielectric constant of PbTiO3, a request for devices working in the microwave frequencies.
Monitoramento metacognitivo em adultos analfabetos funcionais e absolutos
(Universidade Federal de São Carlos, 2017-03-15) Fujie, Márcia Akemi; Schelini, Patrícia Waltz; https://lattes.cnpq.br/6185333517392859; https://lattes.cnpq.br/3161677431639997
Self-regulation refers to thoughts, feelings and actions that are planned and cyclically adapted so as to make the individual reach their goals. Within the self-regulation is the metacognitive monitoring, the ability with which the individual follows and evaluates their own cognition. The present study was divided into two studies, both aimed to investigate the metacognitive monitoring of illiterate adults using the metacognitive judgement, a measure of the metacognitive monitoring, in cognitive tasks that evaluate the general factor of intelligence, processing speed and short-term memory. The relation between the real performance and the estimated performance was also investigated, including in which cognitive task the real performance related more to the estimated performance. In addition, we investigated which type of judgment model – the only difference between the two studies – was the most accurate. The participants of Study (1) included 34 functional or fully illiterate adults, from both genders, and age between 40 and 60 years old; and participants of Study (2) included 15 functional or fully illiterate adults, from both genders, and age between 20 and 74 years old. The instruments utilized were: Initial Interview, R-1 Test and subtests Digit Symbol-Coding, Symbol Search and Digit Span from the Wechsler Adult Intelligence Scale III (WAIS III), Judgment Register from 0 to 10, Judgement Register from 0 to 100 and Judgement Register with the use of a metric object. Results indicated that the real performance of the subjects, in both studies, were lower when compared to subjects with a greater level of education, and, according to the Pearson product-moment correlation coefficient, there was a significant correlation between the real performance and the estimated performance in the subtest Digit Symbol-Coding in Study 1, and significant correlation between real and estimated performance in the subtests Digit Symbol-Coding, Digit Span and Symbol Search in Study 2. In addition, results indicated that the judgment made with a metric object presented he most accurate measures.
Mediação editorial na comunicação científica : um estudo de dois periódicos de humanidades
(Universidade Federal de São Carlos, 2017-03-15) Clares, Letícia Moreira; Salgado, Luciana Salazar; https://lattes.cnpq.br/5206927424265495; https://lattes.cnpq.br/5937201924820709
En este trabajo, proponemos un estudio de la mediación editorial en la comunicación científica, buscando investigar cómo funcionan los procesos de tratamiento editorial de textos en dos publicaciones científicas del área de humanidades (una categoría puesta en cuestión) y cuáles son sus efectos en la comunicación del conocimiento científico. Son consideradas como objetos de análisis las revistas del Instituto de Estudios Brasileños – IEB-USP, Rieb, y del Programa de Postgrado en Geografía de la FFLCH-USP, Geousp: espaço e tempo, además de un conjunto de materiales que circularon bajo la rúbrica edición científica en cursos, eventos y ofertas de servicios editoriales en ambientes especializados, buscando comprender de qué manera los ritos genéticos editoriales dan indicios de la constitución de la comunicación científica como una institución discursiva y, de este modo, en qué medida las condiciones de producción de las publicaciones producen, entre otras cosas, la extinción del hecho de que hay distintas comunidades discursivas. Basado en el método descriptivo-interpretativo característico del análisis del discurso de línea francesa y a la luz de las propuestas teórico-metodológicas de Dominique Maingueneau, movilizamos la noción de escenas de enunciación, objetivando describir un panorama de los elementos coyunturales del universo discursivo editorial de la comunicación científica e investigar cómo, en ese contexto, funcionan las publicaciones. Así que observamos cómo los ritos genéticos editoriales se operan en estos materiales y se relacionan a la constitución del escenario actual de la comunicación científica, dadas las formas como las distintas prácticas de textualización de los atores involucrados en los procesos editoriales evidencian consensos y resistencias en los procesos de producción, circulación y consumo de conocimiento.
Adaptação para pré-escolares de subtestes da bateria multidimensional de inteligência infantil
(Universidade Federal de São Carlos, 2017-03-15) Manfrin, Estela; Schelini, Patrícia Waltz; https://lattes.cnpq.br/6185333517392859; https://lattes.cnpq.br/0224996068682310
The adaptation or elaboration of tests that can validly and accurately evaluate the intellectual abilities of Brazilian preschool children is relevant, considering, among other factors, the lack of instruments. The Cattell-Horn-Carroll Model (CHC) is regarded as the one that most tends to give rise to techniques of intellectual evaluation and consists of a multidimensional vision that conceives the intelligence through capacities or general factors. The Multidimensional Battery of Children Intelligence (BMI), based on such a model, is intended for the evaluation of children between 7 and 12 years. The general objective of the present study was to adapt for preschoolers and to analyze the evidence of validity and accuracy of the sub-tests General Vocabulary, Memory for Names, Speed of Perception and Response Speed of BMI. The first stage of the study consisted of the adaptation of the General Vocabulary, to be used in children between 4 years and 6 years and 11 months. Participants included 10 mothers and 10 female teachers who answered a questionnaire and the original BMI items. 227 different words of children's knowledge were raised and 86 which they were not yet able to understand, according to parents and teachers. Through the relative frequency of the words, the selection was made to compose the new items of the subtest. Thus, from the study with parents and teachers, the 1st version of the General Vocabulary subtest for preschoolers was prepared, consisting of the 35 original BMI and 18 new items. The second step consisted in sending the four subtests to five expert judges to investigate the evidences of content validity through the analysis of agreement between them. The first version of the General Vocabulary sub-test for preschoolers was sent to the judges, as well as three other original BMI subtests: Memory for Names, Speed of Perception, and Speed of Response. After the judges' analysis, the General Vocabulary subtest had 6 excluded items and 5 reformulated items. The Memory for Names only had change in one item and the other subtests did not change in their items, only in the instructions. The third step consisted of a pilot study with 10 children, so that changes in instructions and two subtests were found. Eight items of the General Vocabulary were excluded, giving rise to the 3rd version of the General Vocabulary with a total of 38 items; In Velocity of Perception the numbers were replaced by figures, giving rise to the 1st version of this subtest for preschoolers. Finally, the fourth step was the application in a sample of 43 preschoolers for the analysis of validity evidences based on relations with external variables and precision. All subtests had statistically significant results in relation to the "age" variable. As for accuracy, the 3rd version of the General Vocabulary had alpha of 0.81 and the 1st version in the Memory for Names of 0.42. In the Rapid Response and in the 1st version of the Processing Speed it was not possible to calculate the accuracy. In this way, we conclude that the adaptation to preschoolers of BMI subtests presented evidence of validity based on the variable "age" and the 3rd version of the General Vocabulary was accurate. It is necessary to carry out studies with a larger sample, in order to continue the validity and precision surveys
O processo de constituição do livro Dois Irmãos : uma análise da paratopia criadora de Milton Hatoum
(Universidade Federal de São Carlos, 2017-03-15) Pereira, Claudia Maria de Serrão; Salgado, Luciana Salazar; https://lattes.cnpq.br/5206927424265495; https://lattes.cnpq.br/7136555331134427
A partir del enfoque derivado del Análisis del Discurso de línea francesa y del cuadro teórico-metodológico propuesto por Dominique Maingueneau en sus trabajos sobre la investigación del discurso literario, esta disertación analiza el proceso de constitución del libro Dos Hermanos, del autor Milton Hatoum, con el propósito de describir e interpretar los modos por los cuales la gestión de la figura del autor se inscribe en los procesos de circulación, distribución y recepción del producto literario. De acuerdo con nuestro andamiaje teórico, podemos afirmar que configurándose como un discurso constituyente, el literario preside a través de un régimen de funcionamiento que moviliza redes discursivas específicas que determinan valores atribuidos a las diferentes obras. Consecuentemente, podemos entender tales procesos discursivos a partir del concepto de paratopia creadora, que señala a la comprensión por la cual el valor de un libro no emerge de una contingencia, sino ante la comunidad en que circula. La selección del libro Dos Hermanos no se ha dado únicamente porque la obra es considerada una de las más significativas de la producción literaria brasileña contemporánea, también por una serie de indicios que la convierten en un objeto provechoso para la investigación: i. se trata del libro más vendido de Milton Hatoum, autor cuya identidad autoral se señala como representativa en los llamados estudios regionalistas; ii. la obra ha sido adaptada al medio audiovisual a través de la creación de una “miniserie”, cuyo estreno se ha producido durante la ejecución de este trabajo; iii. hay un número considerable de críticas y reseñas con respecto de su producción así como entrevistas con el propio autor; iv. el autor es reconocido por narrar de modo incisivo el acontecer de la ciudad de Manaus, un factor constantemente retomado en la constitución de los imaginarios acerca de su trabajo. Con esos indicios, avanzamos un análisis de los modos por los cuales el autor opera las regularidades y los valores conjugados tanto a las textualidades de su obra cuanto a la propia figura de autor.
Diálogos entre dois contos machadianos : leituras de “O segredo de Augusta” e “Uma senhora”
(Universidade Federal de São Carlos, 2017-03-15) Camargo, Eduarda Rita Nicoletti; Marques, Wilton José; https://lattes.cnpq.br/5763590592946918; https://lattes.cnpq.br/5721204970762741
This work aims to study two short stories by the writer Machado de Assis, taking in consideration their thematic approximation, leading one to believe that the second short story, "Uma senhora", from 1883, would be the rewrite of a previous short story, "O segredo de Augusta”, from 1868. In order to achieve this, the analysis take into consideration the leitmotiv of the vain woman and the figure of the narrator and in what way the narrator articulates the characters throughout the narrative. Thus, the author uses the theme of a previous short story, still marked by romantic characteristics and rewrite it, guaranteeing a formal improvement in the process of rewriting.
Leitura dos primeiros contos de Machado de Assis no Jornal das Famílias
(Universidade Federal de São Carlos, 2017-03-15) Hora, Carla Laureto; Marques, Wilton José; https://lattes.cnpq.br/5763590592946918; https://lattes.cnpq.br/2634446551160117
The tradition of critical studies of Machado de Assis’ work put aside his f breaking his trajetory in two phases and valuing positively only the one called “maturity phase”. The objects of this study are the author’s inicial short-stories and his critics of that time, in order to verify their organicity in relation to his work as a whole (“Frei Simão”, “Virginius, narrativa de um advogado” and “Casada e viúva”, published in 1864; “Questão de vaidade”, published from 1864 to 1865, and “Confissões de uma viúva moça”, published in 1865). The texts will be consulted in their primary source, Jornal das Famílias, the magazine which had weekly publications from 1863 to 1878. In spite of being considered prolix and romanticized, the purpose is to observe the author’s short-stories beyond what have been already stated. Therefore, the present reading will consider the author’s condition as a shortstory teller, the magazine in which the short-stories are, the relation of the texts with the people reading level at that time, the influence of the literary movements, the audience prefigured by the magazine edition and, at last, from the analysis of Machado de Assis’ critical production, read the short-stories as a way to concretization of a feasible literary project genuinely “machadiano”. Umberto Eco’s concepts of “model-author” and “modelreader” will guide the analysis of the first short-stories, in order to understand the author’s intentions from the narrative strategies presents in the texts.
Tratamento a plasma de nanofibrilas de celulose para aplicação em compósitos
(Universidade Federal de São Carlos, 2017-03-15) Silva, Bárbara Estefânia de Almeida; Silva, Adriana de Oliveira Delgado; https://lattes.cnpq.br/2707979913713089; https://lattes.cnpq.br/9782396193172212
The application of cellulose nanofibrils to the production of composites has been studied and presents promising results, mainly due to the abundance of the material, which is of a renewable source, and to its low cost. However, the presence of the hydroxyl groups in their chain and their storage in aqueous solutions limits their application as reinforcement in nonpolar matrix composites. In this context, this work aimed to modify the wettability and adhesion properties of films of cellulose nanofibrils to apolar matrices, through plasma treatment. For this, nanocellulose films with thickness of 38 ? 8 ?m were produced by the casting method, from a suspension of nanofibrils in water. The atomic force microscopy characterization (AFM) of the suspended nanofibrils indicated that most of them have an average diameter of less than 75 nm. Each film obtained, after drying the suspension, was then cut into 13 samples with 2 x 1 cm, 12 of which were exposed to plasma and one stored as untreated. Three films were treated with oxygen plasma, with excitation power of 150 W, for 30 minutes and pressure of 0.1, 0.3 and 0.5 Torr. Another three films were treated with sulfur hexafluoride plasma at pressures of 0.1, 0.2 and 0.3 Torr, with a power of 150 W for 15 minutes. It was observed that weight loss was greater than 40% for the films treated with the most extreme conditions oxygen and sulfur hexafluoride. The results also showed that the treatments with sulfur hexafluoride promoted the reduction of the receptivity of the samples to the liquids, with contact angles of approximately 60º for water and 50º for diiodomethane. The profilometry technique revealed that the roughness of the films varied after the treatment with oxygen and sulfur hexafluoride, but the high error bars impede a definitive conclusion on the tendency of these variations. The X-ray diffraction analysis (XRD) indicated no significant change in the crystallinity of the samples with the treatments. In the Fourier Transform Infrared absorption spectra (FTIR), a C-F bonding related peak appeared for the 0.3 Torr sulfur hexafluoride treated sample, indicating the presence of fluorine in that sample. The scanning electron microscopy (SEM) allowed the visualization of the changes in the topography of the films, due to the etching processes resulting from the action of the plasma and the films ruptures caused by the high removal of surface material. In order to test the incorporation of treated films into composites using polyolefins as the matrix, polyethylene pellets were solubilized in xylene for the production of composite films. The treated and untreated nanocellulose films were placed in Petri dish jointly to the polyethylene films still dissolved and left at room temperature. After drying, adhesion between the films was tested through the adhesive tape test, resulting in class-zero adherence, according to the technical standard. It is believed that the lack of adhesion is a result of the composite production method that should be optimized for future work, in order to provide a better investigation of the effects of plasma on the surface properties of the film of cellulose nanofibrils.