999 resultados para Dispositivos e instrumentos médicos


Relevância:

20.00% 20.00%

Publicador:

Resumo:

The great diversity in the architecture of biomedical devices, coupled with their different communication protocols, has hindered the implementation of systems that need to make access to these devices. Given these differences, the need arises to provide access to such a transparent manner. In this sense, this paper proposes an embedded architecture, service-oriented, for access to biomedical devices, as a way to abstract the mechanism for writing and reading data on these devices, thereby contributing to the increase in quality and productivity of biomedical systems so as to enable that, the focus of the development team of biomedical software, is almost exclusively directed to its functional requirements

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This work presents techniques used to design and manufacture microstrip patch antennas for applications in portable and mobile devices. To do so, are evaluated several factors that can influence the performance of microstrip patch antennas. Miniaturization techniques are studied and employed in order to apply this type of antenna in mobile and / or mobile. The theories of microstrip patch antennas are addressed by analyzing characteristics such as constitution, kinds of patches, substrates, feeding methods, analysis methods, the main advantages and disadvantages and others. Techniques for obtaining broadband microstrip patch antennas were surveyed in literature and exemplified mainly by means of simulations and measurements. For simulations of the antennas was used the commercial software . In addition, antenna miniaturization techniques have been studied as a main concern the fundamental limits of antennas with special attention to electrically small antennas because they are directly linked to the microstrip patch antennas. Five design antennas are proposed to demonstrate the effectiveness of techniques used to obtain the microstrip patch antennas broadband and miniaturized for use in mobile devices and/or portable. For this, the proposed antennas were simulated, built and measured. The antennas are proposed to be used in modern systems of wireless communications such as DTV, GPS, IEEE 802.16, IEEE 802.11, etc. The simulations of the antennas were made in business and computer programs. The measured results were obtained with a parser Vector of networks of the Rhode and Schwarz model ZVB 14

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Due to the large amount of television content, which emerged from the Digital TV, viewers are facing a new challenge, how to find interesting content intuitively and efficiently. The Personalized Electronic Programming Guides (pEPG) arise as an answer to this complex challenge. We propose TrendTV a layered architecture that allows the formation of social networks among viewers of Interactive Digital TV based on online microblogging. Associated with a pEPG, this social network allows the viewer to perform content filtering on a particular subject from the indications made by other viewers of his network. Allowing the viewer to create his own indications for a particular content when it is displayed, or to analyze the importance of a particular program online, based on these indications. This allows any user to perform filtering on content and generate or exchange information with other users in a flexible and transparent way, using several different devices (TVs, Smartphones, Tablets or PCs). Moreover, this architecture defines a mechanism to perform the automatic exchange of channels based on the best program that is showing at the moment, suggesting new components to be added to the middleware of the Brazilian Digital TV System (Ginga). The result is a constructed and dynamic database containing the classification of several TV programs as well as an application to automatically switch to the best channel of the moment

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This dissertation contributes for the development of methodologies through feed forward artificial neural networks for microwave and optical devices modeling. A bibliographical revision on the applications of neuro-computational techniques in the areas of microwave/optical engineering was carried through. Characteristics of networks MLP, RBF and SFNN, as well as the strategies of supervised learning had been presented. Adjustment expressions of the networks free parameters above cited had been deduced from the gradient method. Conventional method EM-ANN was applied in the modeling of microwave passive devices and optical amplifiers. For this, they had been proposals modular configurations based in networks SFNN and RBF/MLP objectifying a bigger capacity of models generalization. As for the training of the used networks, the Rprop algorithm was applied. All the algorithms used in the attainment of the models of this dissertation had been implemented in Matlab

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Neste artigo, estamos desenvolvendo um estudo relativo às instituições totais. Pesquisamos no romance O Ateneu de Raul Pompéia quais são os dispositivos disciplinares produtores de subjetividade no contexto institucional. Trata-se de uma análise institucional tomando como campo de pesquisa um caso da literatura, pautada pelos referenciais de Goffman e de Foucault. Goffman diz o que são e como funcionam e indica o que produzem as instituições totais. Foucault, por sua vez, nos revela como são possíveis as instituições disciplinares e quais as razões de sua emergência. A leitura de Goffman a partir das análises de Foucault pode nos proporcionar um enriquecimento fecundo na compreensão dos processos de produção de subjetividade na sociedade contemporânea e, de modo específico, no contexto das instituições totais. Goffman analisa as práticas não-discursivas, ele as articula com grande sutileza, fazendo falar os detalhes mais pitorescos e aparentemente insignificantes do cotidiano institucional: percebemos então o plano microfísico das relações intra-institucionais, mergulhando nas diferentes estratégias nas quais o poder se ramifica, circula, domina e produz saberes e sujeitos.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

O Programa de Saúde da Família (PSF) tem por intenção - e mérito - mudar o foco da atenção à saúde centrada no médico e na cura das doenças, para uma atenção centrada na promoção da saúde e prevenção de doenças por meio de uma equipe multidisciplinar. Para atingir esse objetivo, tem na prática de trabalho da visita domiciliar um dos instrumentos fundamentais para o entendimento da totalidade dos condicionantes que afetam a vida do cidadão. Neste artigo, discutem-se os conceitos de visita domiciliar com que operam as três principais categorias de trabalhadores do PSF - médicos, enfermeiros e agentes comunitários - , assim como sua relação com a formação no curso básico. A metodologia se baseia na técnica do discurso do sujeito coletivo a partir das entrevistas aplicadas. Concluímos que a falta de uniformidade sobre o conceito de visita domiciliar pode interferir na proposta de mudança do modelo de atenção à saúde. O artigo tece ainda considerações sobre as distintas concepções de visita domiciliar e sua relação com a organização do trabalho no interior das equipes.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

In the present work we use a plasma jet system with a hollow cathode to deposit thin TiO2 films on silicon substrates as alternative at sol-gel, PECVD, dip-coating e magnetron sputtering techniques. The cylindrical cathode, made from pure titanium, can be negatively polarized between 0 e 1200 V and supports an electrical current of up to 1 A. An Ar/O2 mixture, with a total flux of 20 sccm and an O2 percentage ranging between 0 and 30%, is passed through a cylindrical hole machined in the cathode. The plasma parameters and your influence on the properties of deposited TiO2 films and their deposition rate was studied. When discharge occurs, titanium atoms are sputtered/evaporated. They are transported by the jet and deposited on the Si substrates located on the substrate holder facing the plasma jet system at a distance ranging between10 and 50 mm from the cathode. The working pressure was 10-3 mbar and the deposition time was 10 -60 min. Deposited films were characterized by scanning electron microscopy and atomic force microscopy to check the film uniformity and morphology and by X-ray diffraction to analyze qualitatively the phases present. Also it is presented the new dispositive denominate ionizing cage, derived from the active screen plasma nitriding (ASPN), but based in hollow cathode effect, recently developed. In this process, the sample was involved in a cage, in which the cathodic potential was applied. The samples were placed on an insulator substrate holder, remaining in a floating potential, and then it was treated in reactive plasma in hollow cathode regime. Moreover, the edge effect was completely eliminated, since the plasma was formed on the cage and not directly onto the samples and uniformity layer was getting in all sampl

Relevância:

20.00% 20.00%

Publicador:

Resumo:

O presente artigo tem por objetivo abordar as bases, finalidades e composição de dois instrumentos de avaliação de juízo moral: a Moral Judgment Interview (MJI) e o Defining Issues Test (DIT), e um de competência moral: o Moral Judgment Test (MJT). Retoma a teoria do desenvolvimento moral de Kohlberg que fundamenta esses instrumentos, assim como os últimos estudos realizados com os mesmos. A MJI é uma entrevista semiestruturada que avalia o nível de juízo moral. O DIT é um teste objetivo que mede a proporção de respostas pós-convencionais. O MJT é um instrumento objetivo, que avalia a competência moral. Destaca-se a crescente utilização desses instrumentos em pesquisas sobre moralidade.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

A proposta deste trabalho foi verificar o conhecimento dos médicos pediatras e odontopediatras, a respeito dos compostos fluoretados. Para tanto, foram visitados 91 médicos pediatras e 72 odontopediatras dos municípios de Bauru e Marília, que ao concordarem em participar da pesquisa receberam um questionário com 22 questões. O preenchimento e a devolução foram imediatos. Os dados obtidos foram analisados por meio de estatística descritiva, utilizando freqüências absolutas e relativas, representadas através de tabelas. Mediante a análise dos questionários, verificou-se que alguns polivitamínicos que contêm flúor são usualmente prescritos pelos médicos pediatras, ao passo que os géis, vernizes e soluções para bochecho são bastante empregados pelos odontopediatras. Não foi estabelecida relação entre o conhecimento e tempo de formado, a idade do profissional, a universidade de origem, a cidade em que trabalha e a área de atuação (particular, rede pública ou em ambos) desses profissionais. Os resultados obtidos sugerem que o conhecimento dos médicos pediatras e odontopediatras, das cidades de Bauru e de Marília, a respeito da presença de flúor em várias fontes de ingestão se mostrou insuficiente e, em algumas situações, preocupante, com relação à prevenção de fluorose dentária.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The object of this study was to identify the possibility of predicting the involvement in traffic infractions from the results of the psychological tests carried out by psychologists specialized in the process of driver licensing in the state of Rio Grande do Norte (RN). The proposal consisted in identifying the penalty points recorded in national driving licenses (CNH) and identifying the corresponding tests and scores obtained, verifying if the average scores in the tests of drivers with and without an infraction record were significantly different and if there is any relation between the test scores and the frequency of the infractions. The results of the psychological instruments were collected in two moments the first being in the act of acquisition of the CNH and the second being during license renewal at the only certified clinic and at the DETRAN-RN. A population of 839 drivers of 14 municipalities were identified. 127 protocols of psychological tests were identified in the records of the DETRAN-RN (2002) and 76 at the clinic (2007), pointing out failures in the process of safekeeping of the psychological material, as well as in its retrieval from the record files. The sample was thus reduced to 68 drivers, all male, with age range between 18 and 41 years old, mean of 21,72 years old (DP = 5,24). 54 drivers were identified without a record of infraction, and 14 with a record. The latter committed 29 infractions. The penalty points recorded in their CNH ranged from 0 to 35 and the typical value of points (median) was zero. In the group with a record of infractions the number of points ranged between 3 and 35, mean of 10,79 (DP = 7,73). Differences were observed in the composition of the battery of tests in the two moments with the same subjects. The use of different tests to assess the same construct of the subject, first and second moment of assessment, did not allow for some analyzes with more efficient statistical proof. It was pointed out that five tests were not carried out and 118 were not corrected/analyzed. Significant differences between the groups were not identified with the psychological instruments used. In another attempt to establish differences between the means, the application of the independent t-Test evidenced a significant difference in the scores of the instruments of concentrated attention in 2002 (t = 2,21, gl = 25, p = 0.037) and of diffuse attention in 2002 (t = 2,37, gl = 24, p = 0.026). The results also did not evidence significant correlation between the scores of the tests and the penalty points of the infractions. Based on this study, it cannot be concluded with precision that the high or low scores are good criteria to determine that a driver will commit more or less traffic infractions, nor that the drivers with higher scores in the tests commit less infractions and vice-versa. Furthermore, the problems to find the instruments and the most basic data require a stronger monitoring on the part of the certified clinic and of the DETRAN-RN.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

the Millon Behavioral Medicine Diagnostic is an instrument, developed from a consensus among health professionals, to identify psychological factors that may compromise the conducting of medical treatment in order to allow a better adhesion. As it has been one of the most used tools to assess bariatric surgery, the objective of this research is to verify the evidence validity of Millon Behavioral Medicine Diagnostic (MBMD) for psychological assessment of candidates for bariatric surgery. Method: males and females volunteers, aged 18 to 70, grouped in 150 patients admitted for surgical procedures or suffering from chronic diseases (control group) and 426 patients candidates for bariatric surgery, contacted in person or by the internet. For the study in the face group were also administered Millon Index of Personality Styles (MIPS), the Millon Clinical Multiaxial Inventory-III (MCMI-III) and the General Health Questionnaire of Goldberg, just in bariatric surgery patients. Results: there are indicators of semantic adaptation of the instrument, with 27 factors in five areas of the instrument, all with satisfactory levels of validity. The reliabitity indicators were satisfactory in 18 of the 32 scales that comprise the MBMD, while relations with the other three instruments showed significant variations compared to the original indicators. The MBMD was sensitive to differences between groups about gender, age, education, marital status, body mass index, comorbidities and chronic disease patients and with or without obesity. The use of this instrument in the assessment of candidates for bariatric surgery presents indicators of validity in view the limitations as to the realiability of certain scales

Relevância:

20.00% 20.00%

Publicador:

Resumo:

A atenção primária à saúde é um importante cenário para o cuidado em saúde mental por suas características e pelo trabalho no território contribuir para a superação do modelo manicomial de atenção. Esta pesquisa partiu do questionamento sobre como acontece a atenção em saúde mental na atenção básica nas unidades em que se desenvolve a Residência de Medicina de Família e Comunidade em um município do sertão paraibano. Objetivou investigar as demandas de saúde mental e práticas de cuidado no contexto de ESF e da RMFC do município de Cajazeiras a partir do discurso dos profissionais ali inseridos e discutir estratégias de qualificação do cuidado em saúde mental nessa realidade. Utilizou-se abordagem qualitativa em que foram realizados grupos focais envolvendo profissionais de duas equipes da ESF e uma equipe de NASF. Os dados produzidos nos grupos foram analisados a partir do referencial da análise do discurso de inspiração foucaultiana. Como resultados evidenciou-se que os profissionais percebem a demanda em saúde mental na atenção básica principalmente na forma de sofrimento psíquico inespecífico e transtornos mentais graves. A atenção a essas pessoas não consegue superar a medicalização que é identificada por esses profissionais. A prática asilar persiste como alternativa para os casos de transtornos mentais graves, sendo limitada a incorporação do paradigma da desinstitucionalização como referencial para a prática profissional. Além disso, a relação com a rede de saúde encontra vários limites destacando-se a dificuldade de produção de continuidade e integralidade do cuidado. A partir disto, analisa-se a formação médica e sua capacidade de garantir o cuidado integral na atenção às demandas de saúde mental. No campo da pesquisa, dois modelos de formação se encontram. Os residentes participantes ou graduaram-se em Cuba ou em escola médica brasileira orientada pelas Diretrizes Curriculares Nacionais. Percebe-se então que a graduação, ao incorporar questões relativas à integralidade do cuidado, não é suficiente para gerar bons profissionais para o SUS. Considera-se necessário somar às mudanças na graduação a perspectiva da Educação Permanente em Saúde no mundo do trabalho, o envolvimento dos profissionais com a transformação das práticas de atenção à saúde e a construção da perspectiva da integralidade e da atenção psicossocial por dentro da Residência de Medicina de Família e Comunidade como importantes estratégias para a formação de médicos generalistas aptos para a atenção às demandas de saúde mental