Efeitos dentoesqueléticos do tratamento da classe II utilizando o aparelho de Herbst associados à mecânica Straight-wire

This study compared the effect of the treatment protocol for correcting Class Il malocclusion using the Herbst appliance followed by full fixed Straigh-wire mechanics, in two populations, one Brazilian and one of North American origin As a untreated control sample the data from the University of Michigan Elementary and Secondary School Growth Study (UMGS) was used. Our sample was composed of 12 males and 12 females, with initial mean age of 12 years 7 months and final mean ages of 15 years and 3 months. The Michigan patients comprised 21 females and 7 males, with an initial mean age of 11 years and 9 months and final mean age of 14 years and 4 months. The control sample was paired in number, sex and age to the treated Michigan sample. ln both treated groups, lateral cephalometric radiographs were obtained before the Herbst appliance was cemented and at the end of the fixed appliance phase, The first comparison involved the Brazil group and the untreated controls, which demonstrated that the association of the Herbst appliance followed by fixed Straight-wire appliances provoked positive effects on the dentofacial complex, improving pre-existing maxillo-mandibular relationships, besides increasing dentoalveolar compensations which contributed to correct the malocclusion. The second comparison, involved the Brazl1ian and North-American patients treated with the same protocol. Although the pre-treatment comparison showed that the two groups were not similar in all aspects, they presented almost identical therapeutic modifications, which indicate that the effect of' treatment was very similar. These results point out that, in Class ll treatment, the combination of Herbst/Straight-wire mechanics produce consistent and systematic effects, correcting or minimizing possible skeletal imbalances

Resistência de união, índice de remanescente adesivo e avaliação da presença de esmalte sobre a base de braquetes após descolagem: estudo in vitro

Pós-graduação em Ciências Odontológicas - FOAR

Avaliação de impactos ambientais de equipamentos eletroeletrônicos através de inventário dos materiais usados na fabricação

Pós-graduação em Engenharia Civil e Ambiental - FEB

Instrumentos de ensino de valor histórico e seu papel no ensino secundário no Brasil (1931-1961)

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

Análise de dissipadores de calor com filmes de diamante CVD

Dissipadores de calor recobertos com filmes de diamante CVD foram desenvolvidos para acoplar a semicondutores, utilizando-se do Laboratório de Deposição de Filmes de Diamante CVD, na UNESP - Campus de Guaratinguetá e o Laboratório de Diamantes da Universidade São Francisco, em Itatiba, SP. Analisou-se o filme de diamante CVD sobre o silício, para emprego como dissipador de calor, porque o filme de diamante CVD pode ter o valor da condutividade térmica até cinco vezes superior ao do cobre e de dez vezes a do alumínio. Os filmes foram obtidos via deposição através de reator de filamento quente, trabalhando-se com vários filamentos retilíneos em paralelo, resultando assim em um processo que visou obter um filme mais uniforme e com grande área de deposição. Os dados para análises da composição química superficial dos filmes foram obtidos por Difração de Raios-X, Dispersão de Energia de Raios-X e para a verificação da morfologia e espessura do filme foi utilizada a Microscopia Eletrônica de Varredura. Para a verificação do comportamento da temperatura sobre o dissipador com o filme de diamante CVD foi utilizada uma câmera de imagem termográfica, marca Fluke, modelo Ti 40 FT. Foram obtidos filmes de 2 e 10 ?m sobre o silício. Estas espessuras ainda não oferecem um desempenho mecânico que o torne autosustentado. Do ponto de vista de desempenho térmico as análises mostraram que, mesmo com pequena espessura, o filme de diamante CVD apresentou bom resultado experimental. Os principais desafios de construção para esse dissipador de calor são a obtenção do filme com espessura acima de um mm e a garantia da qualidade do filme com a repetitividade do processo em cujo caso torna-se necessário definir as dimensões do dissipador antes da deposição do filme.

Desenvolvimento de biossensores utilizando eletrodos de Ito modificado com poli (2-vinil piridina)

Há uma grande expectativa para o desenvolvimento de biossensores miniaturizados, que permitam análises mais eficientes e rápidas, em matrizes complexas como as encontradas: no ar, alimentos, águas residuais e em medicamentos. Recentemente, filmes poliméricos inteligentes ativados por estímulo externo têm atraído bastante interesse no desenvolvimento desses tais nanosensores para uso em sistemas químicos e bioquímicos. Estes materiais apresentam uma alta sensibilidade a alterações físicas ou químicas ocorridas na sua interface, e respondem seletivamente a essas mudanças para se adaptarem ao meio. Juntando-se as propriedades estímulo-responsivas desses polímeros com a alta seletividade de reações biológicas tem-se uma excelente combinação para a criação de nano biossensores. A esse tipo de sistema: interfaces/material biológico adota-se a nomenclatura biointerface. As biointerfaces são biossensores em potencial, e na preparação dos biossensores a tarefa mais complicada na sua preparação é o desenvolvimento de superfícies adequadas para o interfaceamento com material biológico, de maneira que a parte biológica possa atuar de forma sensível e estável. A primeira etapa consistiu na produção e caracterização dos polímeros escova (P2VP), os quais serão preparados pelo processo de deposição térmica. A caracterização dos mesmos foi realizada por imagens microscopia de força atômica (AFM), via eletroquímica e por transmissão de ressonância plasmônica de superfície. Na etapa posterior foi estudada a imobilização da glicose oxidase para a preparação do biossensor. O dispositivo fabricado foi empregado para a determinação direta de glicose. Desta forma, esperou-se obter uma metodologia de menor custo e tempo de análise. Logo, este estudo irá contribuir de forma significativa sobre os processos de montagem de biossensores a partir de compostos nanoestruturados. Foram utilizadas técnicas de ...

O uso do ballet nos treinamentos de alto nível da ginástica rítmica

Entre as inúmeras definições da ginástica rítmica podemos apresentá-la como arte e como desporto. Como arte ela é conceituada como a busca do belo, uma explosão de talento e criatividade, em que a expressão corporal e o virtuosismo técnico se desenvolvem juntos, formando um conjunto harmonioso de movimento e ritmo. Como desporto ela é uma modalidade esportiva essencialmente feminina, que requer um alto nível de desenvolvimento de certas qualidades físicas, com exigências de rendimento elevadas, objetivando a perfeição técnica da execução de movimentos complexos com o corpo e com os aparelhos.

Análise da confiabilidade do ensaio de identificação de ligas através de espectrometria por fluorescência de raios x

In chemical industry, petrochemical and oil refinery may be found situations that working pressures and very high temperatures, and alloys that comprise such equipment must have specific characteristics such. As a way to ensure that the materials are as designed, companies have some specific techniques, and one of them is X-ray fluorescence spectrometry, which allows its application in devices small and lightweight, which ensures its portability in field use. This technique however, has some shortcomings such as the impossibility of detecting carbon and other elements of low atomic number which can generate false identifications of elements that are not in the league or non-detection of existing elements. Therefore, this study investigated the reliability of this method using the apparatus Niton XL3t 800 and may conclude that their results are reliable and can be used to assist in ensuring the operational integrity of the production units of these companies

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

Opinião de familiares sobre a internação de crianças em uma Unidade de Terapia Intensiva Pediátrica

A Pediatric Intensive care Unit (PICU) is an environment where care is provided to seriously ill children. Hospitalization is regarded as an unpleasant experience that requires adaptation and routine change. To assess the opinion of relatives of children hospitalized at a PICU concerning tie breakage and/or separation between children and their families. It is a descriptive, cross-sectional, quantitative study. A structured interview was conducted with the families of hospitalized children from July to September, 2010. The data were statistically analyzed. RESULTS: Twenty relatives were interviewed, 80% of whom believed that children’s behavior changes when they are present in the unit, and 85% considered the visitation time established to be sufficient. All the respondents reported to be satisfied about the care provided. The feelings prevailing in 50% of the relatives were fear and hope. Change in the family’s union after hospitalization occurred in 85% of the families. The most fearful aspect concerning the ICU is the equipment (25%), and the most worrisome, as regards personal life, is the separation from other children (65%). Health care professionals must pay more attention to relatives by including them in their health care plan so that the health care team and the family, who are essential in children’s recovery, can interact in a congenial fashion. It is also necessary to improve the knowledge related to that subject so that the health care team and families can work together towards children’s recovery

Cidades sustentáveis: análise comparativa com cidades contemporâneas

Currently the world is under an energy revolution, every day more technologies are developed in order to better use the energy for having better energy efficiency of equipment and processes with minimal environmental degradation. Taking into account that thousands of people live in built environments in the context of cities and that the energy flow to this location is significant, it is important to study the built environment as a potential source of savings, energy recovery and regeneration, because cities are the major bottlenecks energetic. Therefore, this study aimed to examine and to list the most important and promising technologies to be used in the built environment to collect or save energy that would be wasted, such as clothes that generate energy through movement or solar incidence, facades of buildings that generate energy due to solar radiation, fitness centers that produce electricity due to the rotation used in fitness equipment for athletes, elevators that take advantage of the potential energy or use it more rationally, generators that take advantage of energy vibrational, and finally more sustainable vehicles with higher performance and less degrading the environment. The information and results obtained from this study show that the technologies used to harness energy before lost are increasingly evident and also is increased the progress relative to the energy use in a urban context. In the closure, a comparison of energy expenditure between a city that uses some of these sustainable technologies and another of the same size with conventional habits is presented

A cultura corporal na mídia: possibilidades pedagógicas para a educação física escolar

The Physical education has as objective the students integration in the body movement culture, forming citizens to reframe different cultural aspects of the physical activity, enabling a more critical look. Currently selecting how the body movement culture has been widely approached by Mass Media it is detected a new pedagogical possibility. The several media equipment massively bomb (images, sounds and information) interfering on how the students interpret the reality, since they are exposed to these multiple information and at the same time are absent of a more critical look about what they receive. In this way, the objective of this work was to perform a research in the news/articles from the Jornal A Folha de São Paulo, that allows the development of classes based on the elements of body movement culture and apply them in a public school from Rio Claro-SP city, to detect possibilities and difficulties in the work with the media in the school environment. It employed a qualitative research. The data obtained in this study indicate that the media shows up as a good teaching tool for teaching physical education classes, since students found the classes to enriching the learning process, highlighting topics such as innovation and the closeness they had with the worked information. However, it is necessary to develop further studies to raise other possibilities as well as alternatives to deal with this new reality of the school context

O twitter enquanto ferramenta de Relações Públicas para construir relacionamento: um estudo multicasos

Technological development in the IT and telecommunications sectors have transformed the way organizations communicate with their audiences. Social Media allow the exchange of information instantaneously, in a communication from many to many. With few studies in the area, many companies venture into the social media without a strategy and a generally end up denigrating their image itself. Thus, this study was conceived from the idea of contributing, analytically, based on the main concepts of Public Relations so the organizations effectively take advantage of their online presence to generate relationships, more specifically, on Twitter.Twitter is a social media with a mature public, requiring dynamics of information and quick answers, based on dialogue, referring to the idea of text messages (SMS). To better expose the results of this research, three organizations with expertise in twitter were chosen: Bradesco , Positivo Informática and Ponto Frio. The choice of case studies was based on the different segments that each one operates and that they are large companies with reputable commercial operations in the Brazilian scenario. To analyze their profiles, several authors were studied, like Fábio França, Maria Aparecida Ferrari, Margarida Kunsch e Marlene Machiori.The intent of the analysis of the Twitter profiles of these organizations is to understand whether they are using strategies for creating and maintaining relationships with your followers and how this occurs from specific categories, as other companies have committed serious errors and impairing their business because of mismanagement in social media. Therefore, the profiles were analyzed from the netnográfica methodology. As a result, it was observed that organizations have not yet developed the character of relationships in social media , treating this channel as another advertising channel It was observed that Positivo Informática has no specific strategy for Twitter...

Melhoria do processo de reparo por meio da redução de Lead Time em uma empresa de som automotivo

The constant search for improvement and survival of the companies makes essential the utilization of cost reduction strategies and resources optimization. This study had as its objective the utilization of Lean Manufacturing tools for the repair process lead time reduction, in a car audio manufacturer. Performing an action research, the major problems were studied, such as the potential causes and the possible improvement activities, using the DMAIC methodology. An action plan was developed for all involved processes and, as a result, the objective was reached by making a direct impact on the customers’ satisfaction and adding a competitive differential for the company