Saúde pública e participação cidadã: uma análise do controle social no SUS de Franca/SP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise da direção ético política do Assistente Social na perspectiva do projeto hegemônico profissional

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O polinômio de Alexander e o determinante de um nó

Pós-graduação em Matemática em Rede Nacional - IBILCE

As implicações do curso de formação continuada sobre consumo de álcool: uma proposta de intervenção breve aplicada por professores

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Ensino médio integrado no Maranhão: concepção, possibilidades e desafios

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Soluções analíticas da equação de Duffin-Kemmer-Petiau

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Determinação de alguns parâmetros da biologia reprodutiva e produtiva da paca fêmea (Agouti paca Linnaeus, 1744) criada em cativeiro

O presente estudo teve o propósito de determinar as características reprodutivas básicas de pacas criadas em cativeiro, tais como: duração do ciclo estral, duração do período gestacional, intervalo do parto ao primeiro cio pós-parto, duração do intervalo entre partos, além do número de produtos por parto e da proporção sexual. Foram utilizados treze animais, todos criados em cativeiro no Biotério da Universidade Federal do Pará sendo que os dados foram obtidos através de técnicas colpocitológicas, exceto aqueles relacionados à determinação do produto por parto e à proporção sexual, os quais foram observados diretamente após o parto. O período médio encontrado para o ciclo estral foi de 32,5 ± 3,69 (n = 20) dias sendo classificado em quatro fases: proestro, estro, metaestro e diestro. Estes resultados indicam que esta espécie tem poliestxo com reprodução contínua. Quanto ao período gestacional, dois resultados foram obtidos: a) 147,5 ± 2,83 (n = 2) dias para fêmeas cujo último cio foi confirmado com a presença de espermatozóides na lâmina e b) 146,7 ± 6,43 (n = 3) dias para fêmeas que tiveram a confirmação do início da gestação apenas pelas características clínicas do último cio antes do parto, confirmado através da caracterização da lâmina. Os filhotes apresentaram, ao nascer, olhos abertos, corpo completamente coberto de pêlos, movimentos ativos e capacidade de comer alimentos sólidos dentro de dois dias. O peso médio foi de 605,9 ± 87,47 g (n = 12) para as fêmeas e de 736,7 ± 108,41 g (n = 14) para os machos. Dos 38 nascimentos ocorridos no Biotério, nenhum foi gemelar, embora a paca seja capaz de produzir gêmeos. O intervalo entre partos foi de 187,3 ± 8,48 (n = 15) dias e dentro de 35,6 ± 5,22 (n = 5) dias ocorreu o primeiro cio pós-parto. Estes resultados podem servir de base para futuros trabalhos que tenham como objetivo o estudo de parâmetros reprodutivos de animais silvestres através da biotecnologia. Além disso, criatórios bem manejados de pacas podem tornar-se, no futuro, fonte de alimentação com qualidade e fonte de renda acarretando, desta maneira, a garantia da preservação da espécie.

Codificação de fonte

Pós-graduação em Matemática Universitária - IGCE

Complex scalar dark matter in a B-L model

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Classificação de centros e estudo de ciclos limite para sistemas lineares por partes em duas zonas no plano

Pós-graduação em Matemática - IBILCE

O padrão de compressão de video MPEG moving picture experts group

This work focuses on the study of video compression standard MPEG. To this end, a study was undertaken starting from the basics of digital video, addressing the components necessary for the understanding of the tools used by the video coding standard MPEG. The Motion Picture Experts Group (MPEG) was formed in the late '80s by a group of experts in order to create international standards for encoding and decoding audio and video. This paper will discuss the techniques present in the video compression standard MPEG, as well as its evolution. Will be described in the MPEG-1, MPEG-2, MPEG-4 and H.264 (MPEG-4 Part 10), however, the last two will be presented with more emphasis, because the standards are present in most modern video technologies, as in HDTV broadcasts

Desenvolvimento de um computador de bordo para veículo Baja-SAE

The objective of this paper is show the development of an Eletronic Control Unit (ECU) for Baja-SAE vehicles from its requirements to final implementation. An ECU for Baja-SAE vehicles is made of electric and electronic circuits (appropriated to the hostile situations of an off-road competition) able to make important measurements for the running or stand-by vehicle performance. For this development, some concepts were studied: embedded electronics concepts (mainly microcontrollers and data acquisition circuits) and sensoring. Both the studies were made considering the off-road environment. After these initial studies, the elaboration of the basics hardware and software (under simulations) has begun, and this elaboration objectives maximum performance and low implementation cost. After the theorical studies, basic definition of the hardware and software’s architectures and simulations, the printed circuit boards (PCB) were made, as exhaustive tests in these boards for debugging and verify if the boards work well. Once the system was tested in the university, it ran into a regional Southeast competition in 2010, that definitely proved the efficiency of the whole system

Ótica e a visão humana

Optics consists in the study of interaction of light with physical systems. The human vision is a product of the interaction of light with the eye (a very peculiar physical system). Here we present a basic study of the relationship between the optics and human vision, including: - The fundaments and physicals properties who characterize the light and the colors and the characteristics of the incidence mediums. - The basics laws of geometrical optics, based in the rectilinear propagation of light in the form of a light ray, in the independence of light rays and in the principle of reversibility of the light beams. This principle is present in the process of image formations in lenses and mirrors and applied in the study of image formation in the human eye. - The refraction and reflection laws and types of lenses, who permits the construction of optics devices for the study of physical universe, and the appliances to correct vision diseases. - Presents the human vision process as consisting in the reception of light (electromagnetic radiation in the zone of wavelength visible to us) through the eye and the sending of information obtained by the retina to the brain where it is interpreted. The vision involves a biophysical relation between the light and the biological structure of the eye who is constituted by cornea, iris, crystalline and retina. Analyzes is made of how some parts of the eye performs a function in the reception and sending of information of the images to the brain

Estudo da propagação de trinca por fadiga sob carregamento de amplitude variável

For engineering projects that require high reliability levels, is often not enough know only physical and chemical material properties. It’s necessary understand the failure mode of these materials in operation to ensure security level in the project and establish more stringent criteria in the analysis of structural integrity. Due to this need, aircraft industry has been using aluminum alloys in their designs and projects. “Currently more than 70% of aircraft structures are built of high strength aluminum alloys among which stand out 7075-T6 and 2024-T3 alloys, which are considered basics for being used in the new alloys development.” (PASTOUKHOV & VOORWALD, 1995). Some years ago ALCOA develops Al 2524 alloy that has emerged as refinement of Al 2024 (Al, Cu. Mg) alloy, with purpose of improve fracture toughness and fatigue resistance on structural components. The present research addresses testing of fatigue crack propagation under variable amplitude loading for Al 2024 alloy, observing the interaction effects from application of overhead blocks and plastic zone at the crack tip and makes an analysis of fracture surface images

Estudo do potencial de associações de ZnO com os produtos naturais ácido cafeico e ferúlico como filtros solares híbridos: [recurso eletrônico]

In this work were studied associations of ZnO with the natural products caffeic and feluric acids. Two preparation methods were used, that is, the sol-gel and a reflux procedure. In the sol-gel method, ZnO is produced by the basics hydrolysis of precursors in the presence of the organic filters (caffeic and feluric acids), which results in 30 nm (or less) ZnO particles with the organic filters (in dissociated form) bonded to the surface of ZnO. In the reflux method, a dispersion of ZnO in a water/ethanol mixture was kept under reflux (50oC/4h) in the presence of the organic acids. The ZnO particles used in the reflux method have a higher diameter than sol-gel ZnO particles, but the prepared associated product ZnO/Organic acids were similar. Despite of the difference in relation to crystallinity between the products, the preparation methods resulted in analogous associations with respect to the interaction of the organic filters with the ZnO surface. The caffeic/ZnO associations presented low photostability, which lead to the degradation of the organic filter. The other associations (feluric acid/ZnO) presented satisfactory results. The FT-IR spectroscopy confirmed the formation of the association, and the nature of the bond formed compared with the Zn-O bond in Zn2+/Felutic acid complexes. The isolated organic and inorganic filters, along with the associations were analyzed by diffuse reflectance spectroscopy and Uv-vis spectroscopy. The absorption edges and the critical wavelengths were analyzed and the effects of Zn-O bonds in feluric acid/ZnO associations described as a function of the relative position of the π/π* system of the organic filter. Finally the performance of the hybrid filters were investigated in terms of the absorption of UVA and UVB radiations, with the UVA/UVB ratio, an efficiency parameter largely used in the description of solar filters, sunscreen and suncare products