Avaliação da influência de diferentes materiais oclusais na confecção de próteses fixas implantossuportadas unitárias com diferentes diâmetros dos implantes osseointegrados: estudo pelo método dos elementos finitos tridimensionais

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

Influência de diferentes pilares e materiais de recobrimento estético na manutenção da pré-carga do parafuso de retenção de coroas implantosuportadas

Pós-graduação em Odontologia - FOA

Detecção de eventos de segurança de redes por intermédio de técnicas estatísticas e associativas aplicadas a fluxos de dados

Pós-graduação em Ciência da Computação - IBILCE

Retificador entrelaçado boost, no modo de condução descontínua, com técnica de correção da corrente de entrada e elevado fator de potência, para aplicação em sistema trólebus

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo das características morfométricas de diferentes regiões do intestino delgado e índices zootécnicos em quatro linhagens de frangos de corte

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

As prescrições curriculares oficiais para rede de escolas de educação tecnológica do estado do Pará no contexto da implantação do ensino médio integrado no período de 2004 a 2009

O presente estudo teve como objetivo central analisar as prescrições curriculares oficiais para a implantação do ensino médio integrado na Rede de Escolas de Educação Tecnológica do Estado do Pará (EETEPA) no período de 2004 a 2009. Obteve financiamento do CNPq e foi vinculado ao Grupo de Estudos e Pesquisa sobre Currículo e Formação de Professores na Perspectiva da Inclusão (INCLUDERE). Trata-se de um estudo caso de caráter documental. A trajetória do estudo foi realizada por meio de pesquisa exploratória em estudos correlatos, com revisão bibliográfica em fontes secundárias da área de educação seguida de pesquisa documental em fontes primárias, como: leis, atos normativos, boletins informativos, proposta pedagógica, plano de curso de informática de uma unidade tecnológica da Rede EETEPA por meio de critério seletivo. Os aspectos discursivos tratados foram: os fundamentos teóricos para implantação do ensino médio integrado à educação profissional; As políticas curriculares para o ensino médio e educação profissional destacando o caráter dual entre a formação geral e profissional. Bem como, foi resgatado o movimento da implantação do ensino médio integrado em nível nacional e localmente no estado paraense mediante as prescrições curriculares oficiais. Os resultados alcançados: referiram-se primeiramente as estratégias adotadas pela SEDUC para implantação do ensino médio integrado nos estabelecimentos de ensino da Rede de EETEPA, a saber: Criação da Diretoria de Ensino Médio, com duas coordenações, a de Ensino Médio e de Educação Profissional; Quebra do contrato com a OSETPP, resgatando para a administração da SEDUC, as 11 (onze) escolas; Criação da Rede EETEPA; Realização de eventos (conferências, fóruns e seminários); Elaboração da proposta educacional para Rede EETEPA; Elaboração do Projeto Político-Pedagógico para Rede EETEPA; Orientações para reestruturação dos projetos políticos-pedagógicos das escolas tecnológicas e construção dos planos de cursos técnicos; Abertura de edital público para oferta de cursos subsequentes, integrado e PROEJA; e, Iniciação das reformas físicas nas unidades tecnológicas. Foi realizada, também, a identificação e análise das prescrições curriculares oficiais para Rede EETEPA, a saber, Proposta Educacional para a Rede EETEPA; Orientações para implantação de cursos técnicos de nível médio na forma integrada para a Rede EETEPA; Diretrizes Específicas II: Orientações Gerais para o Ensino Médio Integrado. Ao analisar esses documentos, constatei que a proposta educacional prescrita para Rede EETEPA pela COEP/DEMP-SEDUC, coaduna com a proposta idealizada pelo Ministério de Educação, ambas resgatam elementos já disseminados pelo pensamento educacional brasileiro desde as décadas dos anos 1980, com a finalidade de se erigir os fundamentos de uma escola unitária e politécnica, deixando explicita a concepção filosófica inspiradora do documento. Contudo, constatou-se que, o plano de curso de informática da Escola Técnica Magalhães Barata (localizada a região metropolitana de Belém do Pará) não conseguiu apresentar uma proposta coerente com os fundamentos do ensino médio integrado.

Optimum-Path Forest Applied for Breast Masses Classification

In Computer-Aided Diagnosis-based schemes in mammography analysis each module is interconnected, which directly affects the system operation as a whole. The identification of mammograms with and without masses is highly needed to reduce the false positive rates regarding the automatic selection of regions of interest for further image segmentation. This study aims to evaluate the performance of three techniques in classifying regions of interest as containing masses or without masses (without clinical findings), as well as the main contribution of this work is to introduce the Optimum-Path Forest (OPF) classifier in this context, which has never been done so far. Thus, we have compared OPF against with two sorts of neural networks in a private dataset composed by 120 images: Radial Basis Function and Multilayer Perceptron (MLP). Texture features have been used for such purpose, and the experiments have demonstrated that MLP networks have been slightly better than OPF, but the former is much faster, which can be a suitable tool for real-time recognition systems.

Análise dinâmica e estrutural de virabrequim

This paper deals with static analysis and dynamic stress of an ensemble crank and crankshaft, contained within a combustion engine of 4 cylinders. Aimed to illustrate procedures for computer-aided analysis having as goal the optimization of components according to the need for the market demand. Thus, to work in static and dynamic analyzes were summarized the basic theory involved in the calculations and analyzes necessary actuation forces and held a brief introduction about the manufacturing process and forging. Subsequently, it was applied with the use of software in a case the crankshaft, to obtain the performance and structural dynamic thereof. There was a conservative result and critical points in the fillet of the crankshaft bearing, as well as for lubrication hole. It was concluded that there are possibilities for improvements in the manufacturing process and design optimization in order to provide lower criticality and a more robust part

Influência de tratamentos de superfície e agentes cimentantes na sobrevivência de coroas de Y-TZP recobertas por porcelana

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

Inlays Made From a Hybrid Material: Adaptation and Bond Strengths

The aim of this study was to evaluate the internal fit, marginal adaptation, and bond strengths of inlays made of computer-aided design/computer-aided manufacturing feldspathic ceramic and polymer-infiltrated ceramic. Twenty molars were randomly selected and prepared to receive inlays that were milled from both materials. Before cementation, internal fit was achieved using the replica technique by molding the internal surface with addition silicone and measuring the cement thicknesses of the pulpal and axial walls. Marginal adaptation was measured on the occlusal and proximal margins of the replica. The inlays were then cemented using resin cement (Panavia F2.0) and subjected to two million thermomechanical cycles in water (200 N load and 3.8-Hz frequency). The restored teeth were then cut into beams, using a lathe, for microtensile testing. The contact angles, marginal integrity, and surface patterns after etching were also observed. Statistical analysis was performed using two-way repeated measures analysis of variance (p<0.05), the Tukey test for internal fit and marginal adaptation, and the Student t-test for bond strength. The failure types (adhesive or cohesive) were classified on each fractured beam. The results showed that the misfit of the pulpal walls (p=0.0002) and the marginal adaptation (p=0.0001) of the feldspathic ceramic were significantly higher when compared to those of the polymer-infiltrated ceramic, while the bond strength values of the former were higher when compared to those of the latter. The contact angle of the polymer-infiltrated ceramic was also higher. In the present study, the hybrid ceramic presented improved internal and marginal adaptation, but the bond strengths were higher for the feldspathic ceramic.

Effect of the parafunctional occlusal loading and crown height on stress distribution

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

Influence of crown-to-implant ratio, retention system, restorative material, and occlusal loading on stress concentrations in single short implants

Purpose: The aim of this study was to assess the contributions of some prosthetic parameters such as crown-to-implant (C/I) ratio, retention system, restorative material, and occlusal loading on stress concentrations within a single posterior crown supported by a short implant. Materials and Methods: Computer-aided design software was used to create 32 finite element models of an atrophic posterior partially edentulous mandible with a single external-hexagon implant (5 mm wide × 7 mm long) in the first molar region. Finite element analysis software with a convergence analysis of 5% to mesh refinement was used to evaluate the effects of C/I ratio (1:1; 1.5:1; 2:1, or 2.5:1), prosthetic retention system (cemented or screwed), and restorative material (metal-ceramic or all ceramic). The crowns were loaded with simulated normal or traumatic occlusal forces. The maximum principal stress (σmax) for cortical and cancellous bone and von Mises stress (σvM) for the implant and abutment screw were computed and analyzed. The percent contribution of each variable to the stress concentration was calculated from the sum of squares analysis. Results: Traumatic occlusion and a high C/I ratio increased stress concentrations. The C/I ratio was responsible for 11.45% of the total stress in the cortical bone, whereas occlusal loading contributed 70.92% to the total stress in the implant. The retention system contributed 0.91% of the total stress in the cortical bone. The restorative material was responsible for only 0.09% of the total stress in the cancellous bone. Conclusion: Occlusal loading was the most important stress concentration factor in the finite element model of a single posterior crown supported by a short implant.

Difusão de tecnologia CAD e CNC como ferramenta básica de criação e produção em pequena escala, acessível à comunidade

The high competitiveness and the search for newtechnologies that differentiate the product from the project,require the use of new digital tools. The computer aideddesign - Computed Aided Design (CAD), with electronicmodeling, simulation, structural analysis and production,performed in a virtual environment through the applicationof specific software, are available but their use is stilllimited. There are various software available in languagesand extensions to industrial production which, from 3Dmodeling, they can manage through Computer NumericalControl - Computed Numerical Control (CNC) machiningcenters, laminating, stamping, mold making and otherprocesses productive. This project aims to encouragecreativity and entrepreneurship in the community throughthe provision of technology computer aided design - CAD,with a view to implementation of machining technology.

Concepção, modelagem, simulação e usinagem de um aerofólio automotivo auxiliado por computador

With the advancement of computer technology and the availability of technology computer aided design (CAD) errors in the designs are getting smaller. To this end the project aims to assess the reliability of the machine (CNC), which was designed by students of mechanical engineering college engineering - UNESP Bauru, by designing, modeling, simulation and machining an airfoil automotive. The profile template selected for the study will be a NACA 0012 machined plates in medium density fiberboard (MDF) and will be performed with a structural analysis simulation using finite elements and a software CFD (Computational Fluid Dynamics), and test the real scale model in a wind tunnel. The results obtained in the wind tunnel and CFD software will be compared to see the error in the machining process.

Análise de pathway e network em tecido adiposo in vivo e o papel da vitamina D na adipogênese in vitro

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)