Análise estrutural e morfológica de ferrita NiFe2O4 dopada com cromo

This paper reports on the effect of the substitution of Fe3+ for Cr3+ ions in the spinel lattice of the powders was investigated. Nickel ferrite powders with a NiFe2-xCrxO4 nominal composition (x = 0.0; 0.5; 1.0 and 1.5 mol of the chromium) were synthesized by combustion reaction using urea as fuel. The powders resulting were characterized by XRD, nitrogen adsorption by BET, SEM and Mössbauer spectroscopy (57Fe Mössbauer spectra). The results show that the substitution of the Fe3+ for Cr3+ions increased the crystalline degree of the phase, reduced the superficial area and consequently increased the particle size. The Mössbauer spectra of the samples also confirm the distribution of the particles size by the magnetic properties. Analyze of the spectra Mössbauer gives an estimate of the superparamagnetic and ferromagnetic particles behavior in each sample for several chromium concentrations.

Sexualidade e gênero: processos emancipatórios na relação entre universidade e comunidade

This article presents and analyzes the configuration of a project of university extension, developed in partnership with public schools, which has as themes sexuality and gender issues. We seek to understand to which extent sexuality and gender issues contributes to the continuity of the trio teaching / research / extension, while acting as promoter of knowledge of emancipation of those envolved (under graduates, faculty and the community). We based our presuppositions on action research, with document analysis and questionnaires responded to by participants in the project during the period 2005 to 2011 as the instrument of data collection. We constituted that formative processes that disrupt the predominant perspectives in the educational processes of a stereotypical, biologizing and heteronormative nature of sexuality and gender issues were favoured. Moreover, the experience of inseparability of teaching/research/extension was favoured, based on the understanding of knowledge as something constructed in and through social relations.

Políticas públicas em educação ambiental no contexto da Conferência Nacional de Educação - CONAE 2010

n this paper I pose some questions that I systematized after taking part in a colloquium proposed by the National Conference on Education (CONAE 2010) to discuss the theme “Environmental Education and Curriculum Contextualization”. Regarding public environmental education policies, I try to indicate some perspectives that are both coherent with what Brazilian educators and environmentalists have been proposing and considered necessary for the consolidation of an Articulated National Education System. I present a synthesis of the environmental education proposals systematized in the CONAE Reference Document, which was designed as a guide to state and local conferences. I make an effort to carry out a preliminary analysis of both the process and the content of the public environmental education proposals systematized in the Essential Documents (Volumes I and II), Thematic Plenary Meeting Documents, and Final Document. Furthermore, I try to present a short synthesis of the prevailing tendencies of educational policies in Brazil in the last decades, pointing out the meaning and need of social activism for the construction of public policies for education, in general, and for environmental education, specifically.

Educação a distância: um estudo analítico das políticas governamentais com foco no projeto da Universidade Aberta do Brasil

The present study at the doctoral level, is in the initial phase of the Program Graduate School of Education UNESP, SP-Araraquara campus. That makes an analysis of government policies in distance education system through the Open University of Brazil (UAB). We present in this moment, the historical background of the creation and expansion of the system of the Open University of Brazil with emphasis on policies of expansion of higher education and also the degree in pedagogy courses offered by the partner universities of the University System in Brazil Open southeast. Among the main objectives of the study is to compare the Brazilian government policies of expansion of higher education with the management and characteristics of undergraduate courses in pedagogy. Partial results indicate a total 51 universities that offer degree courses in pedagogy at UAB system in Brazil, including 12 institutions in the Southeast.

Meio ambiente no ensino de Ciências: análise de livros didáticos para os anos finais do ensino fundamental

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Educação ambiental e formação de professores de biologia no município de piracicaba/speducação ambiental e formação de professores de biologia no município de Piracicaba/SP

Early this century, several crises are intertwined and the environmental crisis is the most global of them all. In this context, emerged as an environmental education learn to overcome the crisis. This article aims to discuss the ideas of biology teachers in the city of Piracicaba-SP on Environmental Education and from there to reflect on the theme of inclusion in the initial training of teachers. The methodology used a structured questionnaire-based instrument VOSTS (Views on Science-Technology-Society), produced by Aikenhead and Ryan (1992) and the data were analyzed qualitatively. The results indicate that the biology teachers surveyed still have a naive conception of environmental education and training courses need to commit to structural and curricular changes that make the effective insertion of the subject in teacher training in the region studied.

Figuras da comédia em prosa

El ilustrador francés Jacques Callot (1592-1635) representó personajes de la Commedia dell’Arte en su obra Balli di Sfessania (1616-1620), compuesta por 24 figuras. Esas imágenes se caracterizan por mostrar personajes en movimiento, teniendo al fondo escenas de la realidad italiana. El romántico alemán E. T. A. Hoffmann (1776-1822) insirió en sus cuentos y romances muchos elementos que remiten a las obras tanto de otros escritores como de pintores y músicos. Callot fue visitado por por Hoffmann en varias de sus publicaciones, entre ellas el cuento “Princesa Brambilla” (1821),que posee ocho imágenes directamente elaboradas a partir del modelo de Callot en Balli di Sfessania. Esas imágenes, sin embargo, no representan meras “ilustraciones” con respecto a la historia. Mucho más que ello, las imágenes demuestran como Hoffmann interpretaba las figuras de Callot y, como ellas sintetizaron la relación del escritor con Italia ( país que siempre deseó, pero nunca logró visitarlo) y con el arte pictórica.

Formação inicial de professores e educação de jovens e adultos: possibilidades da extensão universitária

The present work aimed at investigating the possibilities and limits of academic extension programs as an environment for initial teacher learning and training. It also focused on investigating the main difficulties identified by Pedagogy and Social Science students about this initial training regarding its use in actual teaching activities. It focused on undergraduate students’ perceptions concerning their involvement in an academic extension project which enabled them to interact with students as teachers in a Youth and Adult Education program, during a whole academic year. Semi-structured interviews were done with nine participants. The content of these interviews was analyzed and divided into four thematic categories. The results show that, for these students, what makes this kind of project unique is the possibility of acting in real situations, under supervision, which provided a moment for reflection. Focusing on supervision, the students point out that this resource is not usually there in traditional internship situations – and that they consider it an important and necessary aspect. It was also indicated the relevance of practice, self-awareness and teaching activity experiences. In conclusion, it was perceived that academic extension programs must be more intensively appreciated, given the coordinating role it can play between investigative and didactic activities, both key to initial training.

O corpo do corpo de Arnaldo Antunes: representação sígnica dialógica

This article talks about the relationship between the body and sign, from the ideas of the Bakhtin Circle. The corpus analyzed is the spectacle Body (2000), designed from a disk of the same title (2000), by Arnaldo Antunes (AA). The aim is to reflect on the expressiveness of the body as a sign and the signic body, since the dialogue between the word (the song) and the body in action makes up the human architectural spectacle.

Saúde e estética: a medicalização da beleza

Este artigo discute os dados levantados em trabalho de campo realizado no Brasil e na Inglaterra, envolvendo a coleta de informações em material de imprensa, dados em arquivos, entrevistas e observação em clínicas estéticas (localizadas em São Paulo e Londres). O artigo toma como problemática central a discussão acerca da cirurgia plástica para fins estéticos como expressão da medicalização da sociedade e da difusão de princípios estruturadores da cultura de consumo. Como desdobramento, desenvolve-se em torno das perguntas: Que impactos a percepção de uma nova forma corporal gera na subjetividade? No caso das mulheres, a cirurgia plástica seria uma prática condicionada pelos ditames dos padrões histórica e culturalmente construídos, que associam a feminilidade a um padrão de beleza socialmente estabelecido, ou poderia ser entendida como uma fonte de poder do indivíduo? Seria, então, um exercício de agência?

A educação ambiental nos projetos político-pedagógicos das escolas municipais de ensino fundamental da cidade de Araraquara/SP

In this paper, we aim at describing and assessing Environmental Education in Pedagogical Policy Projects (PPP) drawn by eight elementary schools belonging to the city school network of the city of Araraquara, in the State of São Paulo, Brazil. A framework was designed to detail references to topics and activities related to the environment contained in the respective PPP. Next, the information obtained was recorded under two categories: a) content and activities, and b) theoretical background. It was found that, although seven out of the eight PPP studied pointed to work towards environment-related topics, they do not enable the theoretical and methodological grounds behind their programmed actions be identified.

A inclusão de temas ambientais nos cursos de Ciências Biológicas de universidades públicas paulistas

Environmental education (EE) is considered an essential component in individual education and requires prepared professionals to deal with the issues it covers. Teacher’s education courses should include the environmental dimension in their curriculum. Nevertheless, studies show that the EE in degrees occurs in an incipient way. This research aimed to analyze the inclusion of environmental issues in Biological Science teacher formation courses, at public universities in São Paulo. We analyzed the summaries of the disciplines in the curriculum of the courses in relation to the number of threads that refer to environmental issues. We found that the courses analyzed include the environmental dimension in the summaries of some disciplines, but in most of them, in an insignificant way. We also found that, in most cases, the disciplines are restricted to ecological aspects of environmental issues. We conclude that the investigated courses do not meet the recommendations of the legislation as regards the inclusion of the environmental dimension in the curriculum of teacher’s education.

Effectiveness of different methods for the detection of binge drinking in dentistry students

The purpose of this study was to estimate the alcoholic beverage consumption among undergraduate students of a Dentistry Course and compare the effectiveness of screening methods for the detection of binge drinking. A total of 284 undergraduate students participated in the research. We used the full AUDIT and their reduced forms (AUDIT-3 and AUDIT-C). In addition, a ROC curve was created and its area was calculated. Of the students, 91.0% and 90.6% of the male and female genders, respectively, reported alcohol beverage consumption. Bing-drinking behavior occurred in 69.2% of the men and in 52.4% of the women. The 3 methods showed good discriminatory ability. For the women, there was a significant difference between the AUDIT-3 and AUDIT-C. Both the complete version of AUDIT and its reduced forms presented good discriminatory ability

Confiabilidade do teste de identificação de transtornos devido ao uso de álcool (AUDIT) em adolescentes

The objective of this study was to estimate the reliability of the alcohol use disorders identification test (AUDIT) applied to adolescents. Evaluations were performed with 141 students of ages ranging from 14 to 17 years (14.93±0.62). The internal consistency of the instrument was estimated by Cronbach’s alpha coefficient and its reproducibility by weighted Kappa statistics by score and by a reliability interval of 95%. The AUDIT presented excellent internal consistency (α=0.80, rinter-item=0.29). Most questions present reproducibility ranked as “good”. It is concluded that the AUDIT is a reliable instrument to survey information about alcohol use in adolescents.

Os mortos de sobrecasaca e a formação do cânone literário nacional

Álvaro Lins (1912-1970), was an important literary critic of brazilian modernism that marked the twentieth century by the great influence of his writings. In 1963, he published Os Mortos de Sobrecasaca: obras, autores e problemas de literatura brasileira. Ensaios e estudos 1940-1960, that brings in the subtitle his concerns in building a balance on the modernist legacy to literature and culture in Brazil. This work makes possible a schematic view of the evolutionary process of literary production, because it indicates an exam about the twenty years of ripening of modernist proposals from a reflection that is organized as a history of Brazilian literature based on leading writers of the national literary canon.