Gestão de resíduos sólidos urbanos: contribuições socioambientais de duas cooperativas de catadores de materiais recicláveis na região do Médio Paranapanema

Pós-graduação em Biociências - FCLAS

Seleção de progênies de Myracrodruon urundeuva (F.F. & M.F. Allemão) baseada em caracteres fenológicos e de crescimento para reconstituição de áreas de reserva legal

Pós-graduação em Agronomia - FEIS

Materiais híbridos argila-poli(metil metacrilato) obtidos através do método grafting

Pós-graduação em Química - IQ

Educação e economia solidária: contribuições da pedagogia da alternância para a formação dos catadores de materiais recicláveis

This text presents the Pedagogy of Alternating methodology, highlighting its contribution to re-think the formation of catadores of recycling materials (rubbish collectors). Whereas the use of this approach in the urban area is unusual, the goal of the article is to initiate a debate to promote further elaborations. Initially an overview of the Pedagogy of Alternating is presented and the main instruments used in this approach are commented. Two theoretical and methodological issues are indicated as challenges for catadores formation: the relations between Education and Work and the relations between Theory and Practice. The need to overcome dichotomy between these dimensions of human activity (that predominates in today's society) is defended. The catadores work reveals the exclusion of these workers of less organized sectors of production chains, with few opportunities to obtain better income and qualification. Overcome this gap requires an intense training to turn the catadores in recycling workers . To reach this goal the implementation of Alternating experiences between study and work in cooperatives and schools is not enough. A deep transformation is needed over the ways and subjects of both study and work, in order to create emancipating activities that promotes a full development of these workers.

Materiais didáticos para o ensino de língua estrangeira: Inglês para crianças

Teaching foreign languages, especially English, has been highly valued and widespread in Brazil in recent decades; so many schools now offer it from the earliest grades of Elementary school or already in kindergarten. This fact can be observed mainly through the spread of bilingual schools and private ones in which individuals begin language instruction as earlier as possible. In this article we report the experience developed in the project “Oficina de Inglês para crianças”, conducted at a Child Care Unit in São Carlos Federal University (UFSCar), and that had counted with the use of various pedagogical materials with the goal of providing a first contact of children with the English Language through a fun and enjoyable way.

A formação do cidadão moderno: a seleção cultural para a escola primária nos manuais de Pedagogia (Brasil e Portugal, 1870–1920)

This article seeks to understand the production of the modern school in Brazil and Portugal at the turn of the 20th century. The analysis falls on the pedagogical knowledge constituted around school programs disseminated in pedagogical manuals at the Normal Schools in Brazil and Portugal. The study uses three teacher training manuals as source of information: Curso pratico de pedagogia destinado aos alunos-mestres das escholas normaes primarias e aos instituidores em exercício (1874), by Mr. Daligault; Elementos de Pedagogia para servirem de guia aos candidatos ao magistério primário (1870), by José Maria da Graça Affreixo and Henrique Freire; and Lições de metodologia (1920), by Bernardino da Fonseca Lage.

Palavras viajeiras: circulação do conhecimento pedagógico em manuais escolares (Brasil/Portugal, de meados do século XIX a meados do século XX)

Na presente publicação apresenta-se análises de um conjunto de manuais escolares que circularam na Escola Normal brasileira e portuguesa entre meados do século XIX e meados do século XX a partir de diferentes olhares, reeditando em outra chave o processo original de circulação de ideias entre Brasil e Portugal no qual esses materiais se inserem. Orientados por outros estudos que tratam do mesmo tema, os autores realizaram recolha nos dois países a fim de comprovar a circulação do corpus empírico que, ao final, foi definido como fonte. Assim, chegou-se ao seguinte conjunto de manuais didáticos: Elementos de Pedagogia de Affreixo & Freire (1870); Curso Prático de Pedagogia Destinado aos Alunos-Mestres das Escolas Normaes Primarias e aos Instituidores em Exercício de Daligault (1874); Lições de Pedagogia Geral e de História da Educação de Pimentel Filho (1875); Lições de Pedologia e Pedagogia Experimental de Faria de Vasconcelos (1910); Lições de Metodologia, de Fonseca Lage (1920); A arte da leitura, de Mário Gonçalves Viana (1949) e Lições de Pedagogia, de Aquiles Archêro Junior (1955). Os pesquisadores utilizam diferentes lentes para tecer suas análises e, cada um segundo sua especialidade de pesquisa, aprofunda aspectos que, juntos, compõem um painel interpretativo sobre o processo de escolarização e seus espaços, a normatização do trabalho docente, os princípios que nortearam a seleção cultural para a escola primária, a constituição de modos e métodos de ensino para realizar os objetivos educacionais e a especificidade que assumem os materiais e o ensino da leitura e da escrita nessa instituição. Todas as análises reiteram a importância dos impressos na consolidação da escola primária portuguesa e brasileira, notadamente no que se refere às prescrições feitas nos manuais escolares que, em trânsito, configuram-se como palavras viajeiras.

Variáveis que afetam o procedimento de colagem direta ortodôntica: braquetes e materiais adesivos

Following the introduction of the acid-etching technique in enamel surface, direct attachment of orthodontic appliances on the surface of the tooth and/or restorations became a routine procedure in the assembly of the fixed devices. The attainment of a success result is related to the criterion attention to the details and the steps of the bonding technique, as well as, to the knowledge of the characteristics of the adhesive materials and orthodontic brackets. This paper presents some aspects of various types of brackets and adhesives materials.

Relação entre materiais dentários e o complexo dentino-pulpar

Despite the strong valorization of the esthetics and its relationship with restorative materials, the biological principles of any clinical procedure are extremely important to maintain the vitality of the dentin-pulp complex. Dentin and pulp tissue are susceptible to different kinds of irritants such as toxins from microorganisms, traumatic procedures of cavity preparation, as well as toxic components released by restorative materials applied in non recommended clinical situations. Initially, the pulp responds to irritation by starting an inflammatory reaction which involves outward movement of dentinal fluid and intratubular deposition of immunoglobulins, upregulation of odontoblast activities, presence of immune cells and their cytokines as well as local expression of neuropeptides and chemokines. After these initial events, the inflammation process can be resolved associated or not to sclerotic dentin formation and reactionary dentin deposition. If high intensity offensive stimuli are applied to the dentin-pulp complex, death of odontoblasts takes place and consequently pulp ageing or even partial necrosis of this tissue may occurs. Thereby, clinicians need to be aware about the physiological and pathological features of the dentin-pulp complex as well as the possible biological consequences of different clinical procedures. In this way, the dentists should be able to carry out minimally aggressive operative techniques and to select the more appropriate restorative materials for each specific clinical situation in order to obtain excellent clinical results associated to the maintenance of pulp vitality.

Prótese metalocerâmica associada à prótese metaloplástica implantossuportada em paciente desdentado total

The use of different methods and materials should be considered during the planning of implant-supported prostheses. Complications such as fractures of the acrylic resin base, wear and fracture of teeth can occur frequently, creating the need for careful planning for each patient, which can make the selection of the type of treatment more complex. Thus, this article describes the oral rehabilitation of a completely edentulous patient with bimaxillary fixed implant-supported prosthesis, with complaints on aesthetics, loss of vertical dimension and fracture of acrylic resin teeth of the upper arch. After the restoration of vertical dimension, his dentures were replaced with new bimaxillary implant-supported fixed prostheses, ceramic and acrylic resin were used as veneering material for maxilla and mandible, respectively. At the end of the treatment, the patient received bimaxillary flat occlusal splints to protect the teeth and implants of possible parafunctional habits. The approach for the treatment allowed a quick and effective resolution, with aesthetic and functional outcomes very favorable for the patient.

Correspondência de cor de diferentes marcas e sistemas de resina c omposta em relação à escala vita classical

The objective of this study was to compare different resins and determine their matching color with Vita shade, also investigating the possibility of substitution among them and the correlation between the visual and spectrophotometry methods of color selection. The composite resin Tetric N-Ceram® shade A1 was used as light-control and color A4 as dark-control. For each material were prepared five 10 x 2 mm disks. Analyses were performed in a metamerism box by volunteers who ordered the specimens from the lightest to the darkest. The spectrophotometry was carried out using the spectrophotometer Vita Easyshade®. ∆E values were subjected to analysis of variance with 5% significance level. The Fisher exact test showed that there was no color match among the materials and the reference Vita shade. The possibility of substitution among the composites could not be established. The two methods are able to correctly differentiate the control resin A4 as distinct from the other resins shade A2.

Capacidade de termoplastificação da guta-percha com diferentes conicidades

jObjective: The objective of this study was to evaluate the thermoplasticity of the gutta-percha cones used for root canal obturation: Dentsply convencional (Dentsply Ind. e Com., Petrópolis, RJ, Brazil), Dentsply 0.04, (Dentsply Ind. e Com., Petrópolis, RJ, Brazil), Antaeos 0.04 (VDW GmbH, Munich, Germany), ProTaper (Dentsply Ind. e Com., Petrópolis, RJ, Brazil) and Alfa 0.06 (VDW GmbH, Munich, Germany). Material and method: Specimens of each material (n = 10) were prepared after heating. After 24 hours were again heated to 70 °C and placed between two glass plates and subjected to a compression of 5 kg for 2 minutes. The scanned image of the groups before and after the compression was analyzed with the software Image Tool (UTHSCSA Image Tool for Windows version 3.0, San Antonio, TX, USA). The flow capacity of the different materials was determined by the difference between the initial and final area of each specimen. The results were submitted to ANOVA and Tukey test with significance level of 5%. Result: Among the material evaluated, the gutta-percha cones Alpha 0.06 and ProTaper presented more thermoplasticity than other groups (p < 0.05). The Dentsply gutta-percha presented thermoplasticity intermediate. The groups Dentsply 0.04 and 0.04 showed lower thermoplasticity after heating (p > 0.05). Conclusion: The gutta-percha present different property of thermoplasticity, which is important to selection of thermoplastic obturation techniques.

Memória dos catadores de materiais recicláveis de Assis (2001-2007)

Pós-graduação em História - FCLAS

Isolamento e seleção de rizobactérias para promoção de crescimento e controle de Phytophthora parasitica em citros

Pós-graduação em Ciências Biológicas (Microbiologia Aplicada) - IBRC

Número mínimo de repetições de plantas por parcela e de avaliações e seleção precoce em testes clonais de eucalipto

Pós-graduação em Agronomia (Genética e Melhoramento de Plantas) - FCAV