Análise da atividade turística desenvolvida na área de proteção ambiental dos Recifes de Corais RN

The protected areas are created for conservation to nature. The way they associate with the communities and visitors are essential to its objectives are achieved. This study aims to analyze how tourism is developed in the. The Recifes dos Corais Protected Area (APARC) through the identification of the image that tourists and residents have with respect to Parracho of Maracajaú and knowledge of the factors that contribute to a satisfactory visit of tourists. For this was an exploratorydescriptive study with quali-quantitative approach, with 236 tourists and 70 residents of the district of Maracajaú, using questionnaires and interviews. Data analysis techniques were used and percentage of arithmetic, factor analysis and content analysis. The results showed that the importance and significance attributed by residents to Parracho related to economic gains. Information on the APARC and on their standards are not done efficiently and contribute to negatively impact the site. The profile of tourists is not the most appropriate for a protected area. The dimensions of satisfaction to the tourists demonstrated the need for actions to be undertaken by the administration of APARC. Conclude that the image that the residents and tourists have of APARC is not conducive to the image of a protected areas. The tourists are satisfied with the tour in APARC, however, the dimensions of satisfaction are not consistent with the conservation of the site

Saúde mental no Programa de Saúde da Família: conceitos dos agentes comunitários sobre o transtorno mental

Este estudo objetivou identificar as representações sociais de agentes comunitários de uma unidade de Programa Saúde da Família sobre o transtorno mental. Optamos pela pesquisa qualitativa, utilizando o estudo de caso. Para a coleta de dados, recorremos à entrevista semi-estruturada, enriquecida pelo uso de Técnica Projetiva, e à análise temática para analisar o material obtido. Os resultados evidenciam representações sociais ancoradas no paradigma psiquiátrico tradicional. Esse considera a pessoa acometida pelo transtorno mental passiva, sem condições de protagonizar os próprios caminhos que, por sua vez, são marcados pelo preconceito. Desse modo, denota-se a grande necessidade de investimento na capacitação em saúde mental, junto aos atores do cenário da assistência do Programa de Saúde da Família. de acordo com o estudo, tal investimento contribuirá para a efetivação de práticas e construção de novos saberes, contribuindo para a melhoria da assistência em saúde.

Spatial Distribution of Seropositive Dogs to Leptospira spp. and Evaluation of Leptospirosis Risk Factors Using a Decision Tree

Background: Leptospirosis is an important zoonotic disease associated with poor areas of urban settings of developing countries and early diagnosis and prompt treatment may prevent disease. Although rodents are reportedly considered the main reservoirs of leptospirosis, dogs may develop the disease, may become asymptomatic carriers and may be used as sentinels for disease epidemiology. The use of Geographical Information Systems (GIS) combined with spatial analysis techniques allows the mapping of the disease and the identification and assessment of health risk factors. Besides the use of GIS and spatial analysis, the technique of data mining, decision tree, can provide a great potential to find a pattern in the behavior of the variables that determine the occurrence of leptospirosis. The objective of the present study was to apply Geographical Information Systems and data prospection (decision tree) to evaluate the risk factors for canine leptospirosis in an area of Curitiba, PR.Materials, Methods & Results: The present study was performed on the Vila Pantanal, a urban poor community in the city of Curitiba. A total of 287 dog blood samples were randomly obtained house-by-house in a two-day sampling on January 2010. In addition, a questionnaire was applied to owners at the time of sampling. Geographical coordinates related to each household of tested dog were obtained using a Global Positioning System (GPS) for mapping the spatial distribution of reagent and non-reagent dogs to leptospirosis. For the decision tree, risk factors included results of microagglutination test (MAT) from the serum of dogs, previous disease on the household, contact with rats or other dogs, dog breed, outdoors access, feeding, trash around house or backyard, open sewer proximity and flooding. A total of 189 samples (about 2/3 of overall samples) were randomly selected for the training file and consequent decision rules. The remained 98 samples were used for the testing file. The seroprevalence showed a pattern of spatial distribution that involved all the Pantanal area, without agglomeration of reagent animals. In relation to data mining, from 189 samples used in decision tree, a total of 165 (87.3%) animal samples were correctly classified, generating a Kappa index of 0.413. A total of 154 out of 159 (96.8%) samples were considered non-reagent and were correctly classified and only 5/159 (3.2%) were wrongly identified. on the other hand, only 11 (36.7%) reagent samples were correctly classified, with 19 (63.3%) samples failing diagnosis.Discussion: The spatial distribution that involved all the Pantanal area showed that all the animals in the area are at risk of contamination by Leptospira spp. Although most samples had been classified correctly by the decision tree, a degree of difficulty of separability related to seropositive animals was observed, with only 36.7% of the samples classified correctly. This can occur due to the fact of seronegative animals number is superior to the number of seropositive ones, taking the differences in the pattern of variable behavior. The data mining helped to evaluate the most important risk factors for leptospirosis in an urban poor community of Curitiba. The variables selected by decision tree reflected the important factors about the existence of the disease (default of sewer, presence of rats and rubbish and dogs with free access to street). The analyses showed the multifactorial character of the epidemiology of canine leptospirosis.

Leprosy control: perspectives & epidemiological and operational aspects

OBJETIVOS: A partir de acervo de 200 textos acadêmicos e de documentos de organismos nacionais e internacionais voltados ao controle da hanseníase publicados no período de 1999 a 2008, procurou-se estudar respectivas possibilidades evolutivas futuras, empregando-se os subsídios do recurso de análise de cenários. MÉTODOS: A reconstrução metodológica adotada foi de natureza qualitativa, fulcrada nas técnicas de revisão bibliográfica e análise de conteúdo. Esta última foi empregada na tipificação documental categorial frequencial contigencial, de acordo com devida fundamentação pertinente. RESULTADOS: Recuperaram-se elementos atuais importantes de natureza epidemiológica e operacional, bem como de respectivas perspectivas. CONCLUSÕES: Projeta-se que a manutenção dos coeficientes de incidência da doença coloca reptos econômicos e sanitários a desafiar desde o modelo neoliberal de organização societária mundial até competências específicas das ações das equipes de saúde em campo.

Search for W H associated production in 5.3 fb(-1) of p(p)over-bar collisions at the Fermilab Tevatron

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Evidence for production of single top quarks

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

Comments on energy confinement in non-periodic structures

In this study, we investigate the possibility of mode localization occurrence in a non-periodic Pfluger's column model of a rocket with an intermediate concentrated mass at its middle point. We discuss the effects of varying the intermediate mass magnitude and its position and the resulting energy confinement for two cases. Free vibration analysis and the severity of mode localization are appraised, without decoupling the system, by considering as a solution basis the fundamental free response or dynamical solution. This allows for the reduction of the dimension of the algebraic modal equation that arises from satisfying the boundary and continuity conditions. By using the same methodology, we also consider the case of a cantilevered Pluger's column with rotational stiffness at the middle support instead of an intermediate concentrated mass. (c) 2008 Elsevier Ltd. All rights reserved.

Determinação de benzeno, tolueno, etilbenzeno e xilenos em gasolina comercializada nos postos do estado do Piauí

Automotive gasoline consists of a complex mixture of flammable and volatile hydrocarbons derived from crude oil with carbon numbers within the range of 4-12 and boiling points range of 30-225 ºC. Its composition varies with the kind of crude oil and the type of refinery process that they undergone. Aromatics hydrocarbons, in particular benzene, toluene, ethylbenzene and isomeric xylenes (BTEX) are the toxic group constituents presents. GC-FID was employed to quantify these hydrocarbons in 50 commercial gasoline samples from Piauí state. Statistical analysis techniques, such as PCA and HCA were used to analyze the data. Moreover, several validation parameters were evaluated.

Peróxido de hidrogênio: importância e determinação

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

Distribuição espacial dos idosos de um município de médio porte do interior paulista segundo algumas características sócio-demográficas e de morbidade

Os Sistemas de Informação Geográfica constituem importantes instrumentos dentro da Saúde Pública como técnicas de análise da distribuição de agravos à população, e, portanto, podem ser usados no estudo da localização de indivíduos portadores de doenças crônicas. Este trabalho objetivou a realização de análise espacial da distribuição da população de sessenta anos e mais no Município de Botucatu, São Paulo, Brasil, estudando o perfil sócio-demográfico e a presença de diabetes e hipertensão arterial. Foram analisados dados de 468 idosos da amostra de inquérito populacional realizado entre 2001 e 2002. Os idosos com melhor nível sócio-econômico residem nos setores censitários de estratos sociais mais altos, o que foi estatisticamente comprovado pela utilização de técnicas de análise espacial para renda e escolaridade. Não se encontrou padrão de distribuição espacial para idosos hipertensos e diabéticos que se localizaram no mapa de forma heterogênea. O presente estudo sugere a utilização das técnicas de geoprocessamento para o mapeamento digital das áreas de abrangências das Unidades de Atenção Primária à Saúde, para um melhor controle da distribuição de idosos portadores de doenças crônicas e de sua assistência pelos profissionais de saúde.

Taxa de câmbio e preços de exportação no Brasil: avaliação empírica dos coeficientes de pass-through setoriais

Este trabalho analisa, de forma empírica, no período 1995-2005, os impactos de variações cambiais sobre os preços de exportação no Brasil, desagregados setorialmente, levando em consideração a inserção externa da economia em um contexto de ampliação da internacionalização e reestruturação produtiva. O cálculo dos coeficientes de pass-through é complementado por um exercício de análise fatorial, com o objetivo de verificar se é possível encontrar padrões setoriais definidos. Os resultados indicam maiores repasses em setores produtores de bens de menor conteúdo tecnológico em que o Brasil possui posição comercial relativamente forte, ao passo que parte dos setores produtores de manufaturados apresenta coeficientes de repasse cambial reduzido.

Structural carbon/epoxy prepregs properties comparison by thermal and rheological analyses

Two different carbon/epoxy prepreg materials were characterized and compared using thermal (DSC, TGA, and DMA) and rheological analyses. A prepreg system (carbon fiber preimpregnated with epoxy resin F584) that is currently used in the commercial airplane industry was compared with a prepreg system that is a prospective candidate for the same applications (carbon fiber prepreg/epoxy resin 8552). The differences in the curing kinetics mechanisms of both prepreg systems were identified through the DSC, TGA, DMA, and rheological analyses. Based on these thermal analysis techniques, it was verified that the curing of both epoxy resin systems follow a cure kinetic of n order. Even though their reaction heats were found to be slightly different, the kinetics of these systems were nevertheless very similar. The activation energies for both prepreg systems were determined by DSC analysis, using Arrhenius's method, and were found to be quite similar. DMA measurements of the cured prepregs demonstrated that they exhibited similar degrees of cure and different glass transition temperatures. Furthermore, the use of the rheological analysis revealed small differences in the gel temperatures of the two prepreg systems that were examined.

On non-linear dynamics and a periodic control design applied to the potential of membrane action

The Fitzhugh-Nagumo (fn) mathematical model characterizes the action potential of the membrane. The dynamics of the Fitzhugh-Nagumo model have been extensively studied both with a view to their biological implications and as a test bed for numerical methods, which can be applied to more complex models. This paper deals with the dynamics in the (FH) model. Here, the dynamics are analyzed, qualitatively, through the stability diagrams to the action potential of the membrane. Furthermore, we also analyze quantitatively the problem through the evaluation of Floquet multipliers. Finally, the nonlinear periodic problem is controlled, based on the Chebyshev polynomial expansion, the Picard iterative method and on Lyapunov-Floquet transformation (L-F transformation).

Contribution to the study of the reaction of mercury with platinum and a platinum-iridium alloy

Thermogravimetry (TG) and other analysis techniques have been used to study the reaction of mercury with Pt and a PtIr alloy. The results suggested that, when heated, the electrodeposited Hg film reacts with Pt or with PtIr to form products of different stabilities, indicated by at least three weight loss steps. In the first step, between room temperature and 170°C, only the bulk Hg is removed. From this temperature to about 280°C the mass loss can be attributed to the desorption of a monolayer of mecury. The last step, from 280 to ≈600°C, can be ascribed to the removal of Hg from a solid solution with Pt and PtIr alloy. © 1995.

Contribution to the study of the solid-state reaction of mercury with pure rhodium

Thermogravimetry (TG) and other analysis techniques (EDX, SEM, Mapping surface, X-ray diffraction, inductively coupled argon plasma emission spectroscopy and atomic spectrometry with cold vapor generation) were used to study the reaction of Hg with Rh. The results permitted the suggestion that, when subjected to heat, an electrodeposited Hg film reacts with Rh to form intermetallic products with different stabilities, as indicated by at least three mass loss steps. In the first step, between room temperature and 160°C, only the bulk Hg is removed. From this temperature up to about 175°C, the mass loss can be attributed to the desorption of a film of metallic Hg. The last step, from 175 to 240°C, can be ascribed to the removal of Hg from a thin dark film of RhHg2.