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  1. Acid rain: a case study at the Universidade de Sao Paulo campus, Sao Paulo State, Brazil; Chuva acida: estudo de caso no campus USP/SP

    Energy Technology Data Exchange (ETDEWEB)

    Galvao, Patricia

    1996-12-31

    The phenomena called acid rain is considered, by many researchers, one of the most serious environmental problem. This work has the aim of showing, in a theoretical and practical study, the problems caused by the atmospheric-pollutant emission, through natural or anthropogenic sources. In a period of 1 year (nov/94-nov/95), it was realized a practical work on rainwater, which consisted of collecting and, afterwards, analysing some physical and chemical parameters of this water, such as acidity, ionic concentrations, etc, with the purpose of characterizing the rainwater in Cidade Universitaria (SP, Brazil). After ending the practical part, it was possible to observe a 1,236.71 mm/y pluviosity, characterized by rainy summer and dry winter. The chemical-constituent-concentration analysis show us the predominance of SO{sup 2-}{sub 4} and Ca{sup 2+}, and a continental-origin water). The region of sao Paulo (Brazil), site of this study, is one of the largest metropolitan and industrialized areas of the world, which includes 18 million people, beside to an enormous industrial and vehicular complex. The acidity in the rain water is a complex problem and it must be treated by a range of disciplines to have a better comprehension of the cause/effects of the acid rain. (author) 96 refs., 28 figs., 4 tabs.

  2. Erosividade e características hidrológicas das chuvas de Rio Grande (RS Erosivity and hydrological characteristics of rainfalls in Rio Grande (RS, Brazil

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    Marcos Gabriel Peñalva Bazzano

    2010-02-01

    ,0 % do intermediário e 24,2 % do atrasado. Da erosividade anual, 49,1 % correspondeu a chuvas do padrão avançado, 28,9 % a chuvas do padrão intermediário e 22,1 % a chuvas do padrão atrasado. O método da distribuição extrema tipo I foi adequado para obter as curvas de intensidade-duração-frequência. Os períodos de retorno da chuva podem ser calculados por meio das equações, utilizando os valores dos parâmetros encontrados, ou pelos gráficos das curvas de intensidade-duração-frequência.Specific rainfall characteristics vary among regions and their erosion potential must be known for the planning of agricultural and civil engineering activities. For Rio Grande (RS, Brazil, the erosivity and relationships with the precipitation and rainfall coefficient, rainfall hydrologic patterns and return period were determined based on rainfall data of 23 years. For each erosive rainfall the segments of the rainfall chart with the same intensity were separated together and the data registered in worksheets. The mean monthly and annual rainfall erosivity, the EI30 index in the International System of Units and the rainfall patterns were estimated using software Chuveros. The mean monthly values of precipitation and erosivity index were expressed as percentage of the mean annual values of these variables, resulting in the curve of accumulated distribution of precipitation and erosivity index in function of time. The rainfall coefficient (Rc was calculated. Pearson correlations and linear regressions between the erosivity index EI30 and the mean annual values of precipitation and rainfall coefficient were calculated. The rainfall return period was calculated for 2, 5, 10, 20, 50, and 100 years. The mean annual value of EI30 was 5135 MJ mm ha-1 h-1, which is to be used as "R" Factor in the Universal Soil Loss Equation (USLE for Rio Grande and surrounding regions with similar climatic conditions. The regression equations for EI30 and precipitation and rainfall

  3. Modelos da distribuição temporal de chuvas intensas em Piracicaba, SP Time distribution models of intense rainfall in Piracicaba, SP, Brazil

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    Décio E. Cruciani

    2002-04-01

    Full Text Available O estudo da variação temporal de chuvas intensas é de grande importância na hidrologia, para a análise e previsão de eventos extremos, necessárias em projetos de controle de engenharia. Com esse objetivo, foram analisados dados de pluviogramas da cidade de Piracicaba, SP, do período de 1966 a 2000, para se determinar a distribuição temporal de chuvas intensas de 60 e de 120 min de duração. As chuvas de 60 min foram subdivididas em três intervalos iguais e sucessivos de 20 min cada um, enquanto as chuvas de 120 min foram subdivididas em quatro intervalos iguais e sucessivos de 30 min cada um. O modelo de distribuição da precipitação que predominou para as chuvas de 60 e 120 min, foi do tipo exponencial negativo, com 85,7 e 50,7% dos casos, respectivamente. Para as chuvas de 60 min, com altura pluviométrica média de 20,7 mm, a distribuição foi de 72,3, 21,4 e 6,2% do total precipitado, respectivamente, nos três intervalos sucessivos de 20 min. Para as chuvas de 120 min, com altura pluviométrica média de 33,3 mm, o resultado foi de 60,1, 25,2, 11,1 e 3,6%, respectivamente, nos quatro intervalos sucessivos de 30 min. O modelo de distribuição temporal dessas chuvas não foi modificado pelo total precipitado nem pela sua duração, nos intervalos em questão.Time distribution models of intense and short rains are very important in hydrology and for extreme predictions in engineering projects. With this purpose, rain data of Piracicaba, SP, Brazil, from 1966 to 2000 were analyzed to establish time distribution models of 60 and 120 min intense rains, during the rainy season from October through March. Time distribution models were assessed by three intervals of twenty minutes duration, for 60 min rains and by four intervals of thirty minutes duration for 120 min rains. The prevailing precipitation model for both, 60 and 120 min rains was a negative exponential distribution, in 85.7 and 50.7% of cases, respectively. For 60 min

  4. Equações de chuvas intensas para o estado do Pará Intense rainfall equations for the state of Pará, Brazil

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    Rodrigo O. R. de M. Souza

    2012-09-01

    Full Text Available As equações de chuvas intensas têm sido usadas como ferramenta importante para o dimensionamento de obras hidráulicas. Devido à grande carência de informações relativas às equações de chuvas intensas, o presente trabalho teve como objetivo a obtenção das relações de intensidade, duração e frequência de precipitação pluvial para o Estado do Pará, utilizando-se a metodologia da desagregação da chuva de 24 h. Foram utilizadas séries históricas de dados pluviométricos de 74 cidades do Estado do Pará, obtidas no Sistema de Informações Hidrológicas da Agência Nacional de Águas-ANA. As equações de intensidade-duração-frequência foram devidamente ajustadas e apresentaram bom ajuste, com coeficientes de determinação acima de 0,99. A maioria das estações (51,4% apresentou intensidade de precipitação entre 90 e 110 mm h-1, para uma duração de chuva de 30 min e um tempo de retorno de 15 anos. Pode-se perceber uma concentração das maiores precipitações na região próxima ao litoral do nordeste paraense e no sudeste da Ilha do Marajó.The intense rainfall equations have been used as an important tool for design of hydraulic structures. Considering the lack of intense rainfall equations, this study aimed to determine the relations of intensity, duration and frequency of intense rainfall in the Pará State (Brazil, using the one-day rain disaggregation method. In this research rainfall data of 74 cities in the State of Pará were used, obtained from the Hydrological Information System of the National Water Agency-ANA. The equations of intensity-duration-frequency were adjusted and presented good adjustment with coefficients of determination above 0.99. Most stations (51.4% showed intensity of precipitation between 90 and 110 mm h-1 for duration of 30 min and rainfall return period of 15 years. The highest rainfall intensities were in the region near the northeast coast of Pará State and southeast of the Marajo

  5. Continuidade espacial de chuvas intensas no estado de Minas Gerais Spatial continuity of intense rainfall in Minas Gerais State, Brazil

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    Carlos Rogério de Mello

    2008-04-01

    Full Text Available O mapeamento de variáveis climáticas, como chuvas intensas, é de fundamental importância para o manejo ambiental. Para isto, ferramentas estatísticas para interpolação espacial devem ser devidamente analisadas e caracterizadas. Assim, objetivou-se com este trabalho analisar modelos e métodos de modelagem do semivariograma que melhor se ajustem a chuvas intensas com duração de 20, 60, 360 e 1440 minutos e tempos de retorno de 5, 50 e 100 anos, fornecendo subsídios primordiais para espacialização da mesma pelo interpolador geoestatístico, para o Estado de Minas Gerais. Foram testados os modelos esférico, exponencial e gaussiano pelos métodos de ajuste da Máxima Verossimilhança (MV e Mínimos Quadrados Ponderados (MQP. Utilizou-se como critério de escolha do melhor modelo, o menor erro médio gerado pela validação cruzada, e em caso de similaridade, também foram considerados o maior grau de dependência espacial e o menor efeito pepita, além da análise visual do ajuste do modelo ao semivariograma experimental. O modelo exponencial se sobressaiu em nove das doze situações analisadas, o gaussiano em duas e o esférico em uma situação. Quanto aos métodos de ajuste, o MQP sobressaiu em todos os casos estudados, o que permite sugerir o modelo exponencial ajustado pelo método dos mínimos quadrados ponderados como sendo o mais adequado para o mapeamento da chuva intensa para as condições do Estado de Minas Gerais.Climate variables mapping, as intense rainfall, is very important to environmental management. Although, statistical tools for spatial interpolation should be analyzed and characterized. This paper aims to analyze models and methods of semi-variogram modeling applied to intense rainfall with duration time of 20, 60, 360 and 1440 minutes and 5, 50 and 100 years of recurrence and consequently, giving support for its mapping, using kriging, in Minas Gerais State. Exponential, Spherical and Gaussian semi

  6. Variabilidade espacial do potencial erosivo das chuvas no Estado do Rio de Janeiro Spatial variability of the rainfall erosive potential in the State of Rio de Janeiro, Brazil

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    Claudinei A. Montebeller

    2007-08-01

    Full Text Available Desenvolveu-se este trabalho com o objetivo de analisar a variabilidade espacial da erosividade no Estado do Rio de Janeiro, por meio de análise geoestatística. Os índices de erosividade médios anuais EI30, definidos pelo produto da energia cinética da chuva e sua intensidade máxima em 30 min e KE>25 (definidos como a energia cinética das chuvas com intensidades superiores a 25 mm h-1 foram calculados a partir de dados pluviográficos de 36 estações, enquanto, para outras 57 estações, os mesmos índices foram estimados por meio de equações de regressão, totalizando 93 pontos de amostragem. O modelo matemático ajustado ao semivariograma experimental, para ambos os índices, foi o exponencial. A partir dos parâmetros dos modelos ajustados, foi possível gerar mapas de erosividade pelo método da krigagem, que apresenta vantagens em relação aos métodos convencionais. Além disso, também foram gerados mapas de variância de krigagem. Os maiores valores de erosividade foram observados nas regiões Serrana e da Baía da Ilha Grande, enquanto os menores valores foram observados nas regiões norte e noroeste do Estado. As maiores variâncias de krigagem foram observadas nas regiões Litorânea e Norte, que são as que apresentam menores densidades de amostragem.The objective of this study was to analyze the spatial variability of the rainfall erosivity indices for the State of Rio de Janeiro, Brazil, using geostatistical analysis. Rainfall erosivity indices EI30 (defined by the product of kinetic energy of the rainfall and its maximum intensity on 30 minutes, and KE>25 (defined as the kinetic energy of the rain just to rainfall intensity higher than 25 mm h-1 were calculated using rain charts for 36 stations, while for the remaining 57 locations, this indices where estimated using standard regression procedures with rain gauges data. Therefore, the total number of points for the entire state was 93. The experimental semivariograms

  7. Índices e espacialização da erosividade das chuvas para o Estado do Rio de Janeiro Indices and spatialization of rainfall erosivity in Rio de Janeiro State, Brazil

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    Flávio A. Gonçalves

    2006-06-01

    Full Text Available Visando aprimorar o conhecimento sobre a erosividade das chuvas no Estado do Rio de Janeiro objetivou-se, no presente trabalho, calcular os índices de erosividade EI30 e KE > 25, utilizando-se duas metodologias para estimativa da energia cinética, estimar os índices de erosividade mensais médios mediante os dados pluviométricos e obter os mapas de isoerosividade para o referido Estado. Com base nos dados pluviográficos de 14 estações localizadas no Rio de Janeiro, obteve-se o EI30 e o KE > 25. A estimativa dos índices também foi feita por meio de correlações com a precipitação mensal média ou com o coeficiente de chuva e a espacialização, por meio de mapas gerados com o uso do software ArcView 3.2a. Os resultados permitiram concluir-se que os índices de erosividade apresentam, para os diferentes locais estudados, diferenças expressivas entre si; não houve diferenças significativas entre os resultados obtidos pelas equações propostas para o cálculo da energia cinética da chuva, e a estimativa da erosividade das chuvas a partir de precipitação mensal média, proporcionou melhores resultados que quando se usou coeficiente de chuva.For improving the knowledge about rainfall erosivity in the state of Rio de Janeiro, Brazil, the present study aimed to calculate the erosivity indices EI30 and KE > 25 using two methodologies to estimate the kinetic energy, average monthly erosivity indices based on pluviometric data and to obtain the isoerosivity maps for the State. EI30 and KE > 25 were obtained using rain gauge data of 14 stations located in Rio de Janeiro. Index estimates were also obtained by using correlations with the average monthly precipitation or the rainfall coefficient and spatialization via maps generated by ArcView 3.2a software. The results permit to conclude that the erosivity indices, for the different studied places, present expressive differences among themselves; there were no significant differences

  8. The CHUVA Lightning Mapping Campaign

    Science.gov (United States)

    Goodman, Steven J.; Blakeslee, Richard J.; Bailey, Jeffrey C.; Carey, Lawrence D.; Hoeller, Hartmut; Albrecht, Rachel I.; Morales, Carlos; Pinto, Osmar; Saba, Marcelo M.; Naccarato, Kleber; Hembury, Nikki; Nag, Amitabh; Heckman, Stan; Holzworth, Robert H.; Rudlosky, Scott D.; Betz, Hans-Dieter; Said, Ryan; Rauenzahn, Kim

    2011-01-01

    The primary science objective for the CHUVA lightning mapping campaign is to combine measurements of total lightning activity, lightning channel mapping, and detailed information on the locations of cloud charge regions of thunderstorms with the planned observations of the CHUVA (Cloud processes of tHe main precipitation systems in Brazil: A contribUtion to cloud resolVing modeling and to the GPM (GlobAl Precipitation Measurement) field campaign. The lightning campaign takes place during the CHUVA intensive observation period October-December 2011 in the vicinity of S o Luiz do Paraitinga with Brazilian, US, and European government, university and industry participants. Total lightning measurements that can be provided by ground-based regional 2-D and 3-D total lightning mapping networks coincident with overpasses of the Tropical Rainfall Measuring Mission Lightning Imaging Sensor (LIS) and the SEVIRI (Spinning Enhanced Visible and Infrared Imager) on the Meteosat Second Generation satellite in geostationary earth orbit will be used to generate proxy data sets for the next generation US and European geostationary satellites. Proxy data, which play an important role in the pre-launch mission development and in user readiness preparation, are used to develop and validate algorithms so that they will be ready for operational use quickly following the planned launch of the GOES-R Geostationary Lightning Mapper (GLM) in 2015 and the Meteosat Third Generation Lightning Imager (LI) in 2017. To date there is no well-characterized total lightning data set coincident with the imagers. Therefore, to take the greatest advantage of this opportunity to collect detailed and comprehensive total lightning data sets, test and validate multi-sensor nowcasting applications for the monitoring, tracking, warning, and prediction of severe and high impact weather, and to advance our knowledge of thunderstorm physics, extensive measurements from lightning mapping networks will be collected

  9. Dinâmica do pH da água das chuvas em Passo Fundo, RS Dynamics of rainfall pH in Passo Fundo, Rio Grande do Sul, Brazil

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    Gilberto Rocca da Cunha

    2009-04-01

    Full Text Available O objetivo deste trabalho foi avaliar a dinâmica do pH da água das chuvas em Passo Fundo, RS, de 1992 a 2007. A água foi coletada em recipiente de PVC (diâmetro de 10 cm acoplado a um pluviômetro, e as amostras foram armazenadas em congelador para posterior determinação do pH. A dinâmica do pH da água foi avaliada por meio das médias mensais e anuais do pH, da probabilidade empírica da distribuição dos valores anuais de pH por estação do ano e da frequência relativa acumulada do pH. A água das chuvas incidentes na região de Passo Fundo apresentou pH acima de 5,6, que é o limite para que a chuva seja considerada ácida. A análise do período de 16 anos indicou tendência de redução do pH da água das chuvas em 0,023 ao ano. Nesse período, a redução foi de 6,1 para 5,8. As chuvas foram ligeiramente mais ácidas no verão e na primavera do que no outono e no inverno. Em geral, as chuvas incidentes na região não apresentaram riscos imediatos de acidificação ambiental.The objective of this work was to evaluate the dynamics of rainfall pH in Passo Fundo, RS, Brazil, from 1992 to 2007. The rainfall pH was monitored in 50 mL samples collected in a 10-cm diameter PVC tube connected to a rain gauge; samples were then stored in a freezer for later determination of pH. The dynamics of rain water pH was evaluated through the annual and monthly averages of the pH, the empirical probability of pH values distributed over the seasons, and the pH accumulated relative frequency. The rainfall events in Passo Fundo region have pH higher than the critical threshold (pH 5.6 to be considered acid rain. The analysis of a 16-year period showed reduction of the rainfall pH at 0.023 per year. Over that period, the average pH fell from 6.1 to 5.8. The rainfalls were slightly more acidic in the summer and spring than in the autumn and winter. In general, the analysis of rainfall events in the region showed no immediate risk of environmental

  10. NetErosividade MG: erosividade da chuva em Minas Gerais NetErosividade MG: rainfall erosivity for Minas Gerais State, Brazil

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    Michel Castro Moreira

    2008-06-01

    Full Text Available A erosividade da chuva é um índice numérico que expressa a capacidade das chuvas em provocar erosão hídrica no solo. O presente trabalho teve por objetivo desenvolver um programa computacional para estimar os valores da erosividade da chuva no Estado de Minas Gerais com base em redes neurais artificiais (RNAs. O valor anual da erosividade da chuva é obtido pelo somatório dos valores mensais dos índices de erosividade EI30 ou KE > 25. Foram utilizados para cálculo de cada um desses índices dois métodos de obtenção da energia cinética de precipitação pluvial. Dessa maneira, obtiveram-se quatro valores de erosividade para cada mês, totalizando o desenvolvimento de 48 redes. As RNAs desenvolvidas foram implementadas no ambiente de programação Borland Delphi 7.0. O programa computacional desenvolvido foi denominado NetErosividade MG. O programa fornece, de forma fácil e rápida, os valores mensais e anual da erosividade da chuva para qualquer localidade do Estado de Minas Gerais.Rainfall erosivity represents the potential of rainfall causing soil erosion. This study aimed to develop a software to estimate rainfall erosivity in the state of Minas Gerais based on Artificial Neural Networks (ANNs. The annual value of the rainfall erosivity is given by the sum of the monthly values of the erosivity indexes EI30 or KE > 25. Two methodologies were used to estimate the kinetic energy for each index. Thus, four erosivity values were evaluated for each month, resulting in the development of 48 ANNs. These ANNs were implemented using the software Borland Delphi 7.0. The new software was called NetErosividade MG. The program calculates the monthly and annual values of rainfall erosivity for any location in the state of Minas Gerais in an easy and fast way.

  11. Erosividade da chuva e erodibilidade de Cambissolo e Latossolo na região de Lavras, sul de Minas Gerais Rainfall erosivity and erodibility of Cambisol (Inceptisol and Latosol (Oxisol in the region of Lavras, Southern Minas Gerais State, Brazil

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    Antonio Marcos da Silva

    2009-12-01

    Full Text Available No Brasil, ainda são relativamente poucos os estudos envolvendo erodibilidade do solo, principalmente Cambissolos, dada a morosidade na obtenção dos resultados de experimentos com chuva natural. O conhecimento dos índices de erosividade e de erodibilidade é importante para o planejamento conservacionista, contribuindo para a sustentabilidade dos solos. Este estudo teve como objetivos determinar a erosividade da chuva e a erodibilidade de Cambissolo Háplico Tb distrófico típico e Latossolo Vermelho distroférrico típico, sob chuva natural, em Lavras (MG, no período de 1998 a 2002. Os dados de precipitação pluviométrica foram obtidos na Estação Climatológica Principal de Lavras, localizada no campus da Universidade Federal de Lavras, próxima das unidades experimentais de perdas de solo. A erosividade (EI30 foi determinada a partir do produto da energia cinética da chuva pela sua intensidade máxima em 30 min. Estes dados, correlacionados com as perdas de solo, permitiram obter o índice de erodibilidade dos solos. A precipitação total média anual foi 1.287 mm e a erosividade média foi de 4.865 MJ mm ha-1 h-1 ano-1. A erodibilidade foi 0,0355 Mg h MJ-1 mm-1 para o Cambissolo e 0,0032 Mg h MJ-1 mm-1 para o Latossolo, em consonância com seus atributos mineralógicos, químicos, físicos e morfológicos diferenciais.Relatively few studies in Brazil have investigated soil erodibility, mainly for Cambisols (Inceptisols, due to the tediousness of data collection in natural rainfall experiments. Knowledge about erodibility and erosivity is important for conservation planning, which contributes to soil sustainability. This study aimed at evaluating the rainfall erosivity and erodibility of a typic dystrophic Tb Haplic Cambisol (Inceptisol and a typic dystroferric Red Latosol (Oxisol under natural rainfall, in Lavras, state of Minas Gerais, Brazil, between 1998 and 2002. Pluvial precipitation data were obtained from the main weather

  12. Precipitation properties observed during CHUVA Field Campaign

    Science.gov (United States)

    Morales, C.; Machado, L. A.; Angelis, C. F.; Silva Dias, M. A. F.; Fisch, G.; Carvalho, I. C.; Biscaro, T.; Sakuragi, J.; Neves, J. R.; Anselmo, E. M.; Lacerda, M.

    2012-04-01

    CHUVA is a Brazilian research program that seeks to depict the main precipitating systems observed in Brazil as a support for the Global Precipitation Measurement (GPM) mission. CHUVA is conducting a series of field campaigns in the time frame of 2010-2013 to sample raining systems that vary from maritime to continental regime and in polluted and clean environments. For this study, we will present initially the drop size distribution (DSD) variability observed in the field experiments of Alcantara (March/2010), Fortaleza (April/2011), Belém (June/2011) and Vale do Paraiba (November-December/2011). Secondly, with the help of the mobile X-Band and MRR-2, we will show the DSD differences observed on warm and cold phase clouds, and convective and stratiform precipitation. Finally, by employing the vertical electrical field and lightning measurements together with the weather radar, we will present the main vertical precipitation features observed in thunderstorms and non- thunderstorms, in addition to the different raining systems observed during the four field campaigns.

  13. Estimativas de chuvas intensas para o Estado de Goiás Intense rainfall estimates for the Goiás State, Brazil

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    Luiz F. C. de Oliveira

    2008-03-01

    Full Text Available A ausência de estações pluviográficas e de séries históricas longas, tem levado os Engenheiros à utilização de metodologias que permitam expressar a relação intensidade-duração-freqüência de precipitações críticas. Com o objetivo de estimar as alturas de chuvas intensas, associadas a uma duração e freqüência, desenvolveu-se uma rotina computacional para ajustar os parâmetros do modelo de Bell para alguns municípios do Estado de Goiás. Para tal, empregaram-se séries históricas de precipitações diárias e de relações intensidade-duração-freqüência disponíveis para alguns municípios. Determinou-se, também, a relação entre a precipitação de 60 minutos e 1 dia de duração, para um período de retorno de dois anos. As informações geradas neste trabalho foram regionalizadas, permitindo a geração de mapas temáticos, visando a estimar a altura precipitada-duração-freqüência para as localidades desprovidas de registros. Para os municípios estudados, o modelo de Bell se ajustou-se perfeitamente, apresentando alternativa interessante na obtenção das alturas de chuvas intensas a partir de séries curtas. A reconstrução do modelo de Bell a partir da regionalização dos parâmetros ajustados permitiu a ampliação das equações que expressam a relação entre a precipitação máxima para diferentes durações e o período de retorno com baixos valores no erro-padrão da estimativa.The absence of pluviograph stations and of long historical series has induced engineers to use methodologies that allow them to express the intensity-duration-frequency relation of critical rainfalls. With the purpose of estimating the height of intense rain associated to a given duration and frequency, it was developed a computational routine to adjust the parameters of the BellÂ’s model to some municipal districts of the Goiás State. For such work it was employed historical series of daily precipitation and intensity

  14. Chuva de sementes de espécies lenhosas florestais em mosaicos de floresta com Araucária e campos no Sul do Brasil Seed rain of woody species in mosaics of Araucaria forest and grasslands in Southern Brazil

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    Melina Marchesini Grassotti dos Santos

    2011-03-01

    Full Text Available Mecanismos de dispersão de diásporos e recrutamento de plântulas evitam a competição intra-específica e possibilitam a colonização de novos ambientes. Em áreas de transição entre florestas e vegetação campestre esses processos não são aleatórios, e sim associados muitas vezes a indivíduos lenhosos isolados em tais áreas de campo ou a formações arbustivas. No sul do Brasil, as Florestas com Araucária formam mosaicos com áreas campestres e observa-se o avanço da floresta sobre os campos. O estudo teve como objetivo avaliar a chuva de sementes de espécies lenhosas florestais associadas a áreas de ecótonos de Floresta com Araucária e campos e a indivíduos lenhosos isolados na matriz campestre. Os estudos foram realizados no Centro de Pesquisas e Conservação da Natureza Pró-Mata PUCRS, em São Francisco de Paula, RS, em vegetação campestre excluída de fogo e de pastejo há 16 anos, circundada por florestas. A chuva de sementes foi avaliada mensalmente por um período de oito meses com o uso de coletores que foram posicionados em ecótonos de floresta e campos com diferentes fisionomias e sob indivíduos lenhosos isolados na matriz campestre. Tais ambientes foram comparados através de análise de variância univariada e multivariada para verificar padrões de chuva de sementes. Os resultados indicaram que a dispersão de sementes em áreas campestres ocorre preferencialmente associada a indivíduos isolados de Araucaria angustifolia e a formações arbustivas de Baccharis uncinella e que tais ambientes funcionariam como extensões de condições mais semelhantes à floresta na matriz campestre.Mechanisms of seed dispersal and recruitment avoid intraspecific competition and allow plants to colonize new habitats. In transition areas between forest and grassland, these processes are not spatially random, but are often associated with isolated woody individuals in the grassland or with areas of continuous shrub cover. In

  15. Erosividade das chuvas em Uruguaiana, RS, determinada pelo índice EI30, com base no período de 1963 a 1991 Rainfall erosivity in Uruguaiana, Rio Grande do Sul, Brazil from 1963 to 1991 determined by the EI30 index

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    Clério Hickmann

    2008-04-01

    Full Text Available A erosividade representa o potencial que as chuvas têm de provocar erosão hídrica no solo. O índice EI30 é um método de determinação dessa erosividade das chuvas e é calculado, para cada chuva individual e erosiva, pelo produto da energia cinética total da chuva e sua intensidade máxima em 30 min. O objetivo deste trabalho foi calcular a erosividade das chuvas do município de Uruguaiana, RS, para subsidiar aplicações práticas em conservação do solo. A partir de pluviogramas diários, foram separados, para cada chuva individual e erosiva, os segmentos com a mesma intensidade, registrados em planilha, digitados e analisados com o programa Chuveros, que calculou o índice EI30. Foram analisadas 978 chuvas erosivas de Uruguaiana, no período de 1963 a 1991, sendo encontrados valores de precipitação média anual de 1.399,8 mm ano-1 e erosividade média anual das chuvas de 8.875 MJ mm ha-1 h-1. Esse é o valor do Fator "R" (erosividade das chuvas para ser usado na Equação Universal de Perdas de Solo, para predição das perdas de solo por erosão hídrica em Uruguaiana, RS. O período de outubro a abril apresentou 67 e 77,5 % da precipitação e da erosividade anual, respectivamente, sendo por isso necessários maiores cuidados quanto ao manejo dos solos agrícolas. O mês de fevereiro é o de maior potencial erosivo, com 1.403 MJ mm ha-1 h-1. O município de Uruguaiana apresentou 49,2 % do total das chuvas no padrão avançado, 24,5 no padrão intermediário e 26,3 % no padrão atrasado. A erosividade média anual de Uruguaiana pode ser igualada ou superada pelo menos uma vez a cada dois anos. O EI30 médio mensal de Uruguaiana e seu entorno podem ser estimados usando as relações apresentadas com o coeficiente de chuvas, permitindo utilizar dados pluviométricos. O modelo matemático que apresentou a melhor correlação entre o EI30 médio mensal e o coeficiente de chuvas Rc foi o quadrático (r = 0,9948.Rainfall erosivity

  16. Erosividade, padrões hidrológicos, período de retorno e probabilidade de ocorrência das chuvas em São Borja, RS Erosivity, hydrological patterns, return period and probability of occurrence of rainfalls at São Borja, RS, Brazil

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    Elemar Antonino Cassol

    2008-06-01

    "R" da USLE, foi obtido de dados pluviométricos, representados pelo coeficiente de chuva, que pode ser utilizado para regiões climáticas semelhantes que apenas dispõem de dados pluviométricos. O valor da erosividade média anual de 9.751 MJ mm ha-1 h-1 ano-1 é esperado pelo menos uma vez a cada 2,2 anos, com uma probabilidade de ocorrência de 44,9 %.The erosivity potential of rainfalls can be estimated by some indexes, among them the EI30, which is given by the product of kinetic energy (E and rainfall intensity for a 30-minute period (I30. The purpose of this study was to determine rainfall erosivity, hydrological patterns, return period and probability of occurrence of erosive rainfalls in São Borja, RS, Brazil, based on diary rainfall charts of the FEPAGRO meteorological station, from 1956 to 2003. The duration and accumulated amount of each erosive rainfall were measured, entered in a spreadsheet, digitalized and processed by CHUVEROS software, which calculated the EI30 index and the monthly and annual total erosivity, besides determining the hydrological pattern of each rainfall. Most of the annual erosivity (76 % was concentrated between October and April, in the period of soil tillage, sowing and growth of summer crops. The most notable peak in the erosive potential was observed between March and April (1,260-1,269 MJ mm ha-1 h-1, when most crops are normally in full growth, while July and August were the months of lowest erosive potential (268-271 MJ mm ha-1 h-1. Of the total erosive rainfalls 47, 25 and 28 % had advanced, intermediary and delayed patterns, respectively, while these patterns corresponded to 50, 26 and 24 %, respectively, of the mean annual volume of erosive rainfalls and to 53, 25 and 22 % of the average annual erosivity. The mean annual index of erosivity in São Borja is 9,751 MJ mm ha-1 h-1 year-1. It represents the "R" Factor of the Universal Soil Loss Equation to be used in São Borja and regions with similar rainfall pattern

  17. Maize yield and rainfall on different spatial and temporal scales in Southern Brazil Rendimento de milho e chuva em diferentes escalas espaço-temporais no Sul do Brasil

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    Homero Bergamaschi

    2007-05-01

    Full Text Available This study aimed to establish relationships between maize yield and rainfall on different temporal and spatial scales, in order to provide a basis for crop monitoring and modelling. A 16-year series of maize yield and daily rainfall from 11 municipalities and micro-regions of Rio Grande do Sul State was used. Correlation and regression analyses were used to determine associations between crop yield and rainfall for the entire crop cycle, from tasseling to 30 days after, and from 5 days before tasseling to 40 days after. Close relationships between maize yield and rainfall were found, particularly during the reproductive period (45-day period comprising the flowering and grain filling. Relationships were closer on a regional scale than at smaller scales. Implications of the crop-rainfall relationships for crop modelling are discussed.Este trabalho teve como objetivo estabelecer relações entre rendimentos de milho e totais de chuva em diferentes escalas temporais e espaciais, com a finalidade de fornecer bases para modelagem e monitoramento de safras. Utilizou-se uma série de 16 anos de rendimento de milho e dados diários de chuva de 11 municípios e microrregiões do Estado do Rio Grande do Sul. Análises de correlação e regressão foram utilizadas para determinar associações entre rendimento e total de chuva no ciclo do milho, do pendoamento até 30 dias depois, e de 5 dias antes a 40 dias após o pendoamento. Altas relações foram encontradas entre rendimento de milho e chuvas do período reprodutivo, em particular dos 45 dias que englobam florescimento e enchimento de grãos. Essas relações foram mais elevadas em escala regional do que em nível de município. São discutidas implicações das relações clima-chuva para modelagem de cultivos.

  18. Erosividade da chuva: sua distribuição e relação com as perdas de solo em Campinas (SP Rainfall erosivity: its distribution and relationship with soil loss at Campinas, state of São Paulo, Brazil

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    Francisco Lombardi Neto

    1992-01-01

    Full Text Available O potencial de erosão de uma chuva, representado pelo produto da energia cinética pela intensidade máxima em 30 minutos, foi calculado para chuvas individuais, para Campinas (SP. Durante um período de 22 anos (de 1954 a 1975, o índice de erosão médio anual computado foi de 6.738 MJ.mm/ha.h.ano, tendo os valores variado de 3.444 a 13.830. Foram estabelecidas as distribuições mensais e estacionais do índice de erosão. Os dados mostraram que 62% do potencial de erosão anual ocorre durante dezembro-fevereiro. A freqüência de distribuição dos valores totais anuais e do valor máximo anual do índice de erosão seguiu o tipo de curva inclinada, típica de dados hidrológicos, mas o logaritmo dos dados apresentou distribuição normal. Foi encontrada alta correlação entre a média mensal do índice de erosão e a média mensal do coeficiente de chuva, o que simplifica o método para calcular o índice de erosão de um local.The rainfall erosion potential for individual storms was evaluated for Campinas, State of São Paulo, Brazil. The erosion potential of a rainstorm is the product of the rainfall energy and the maximum 30-minute intensity of the storm. Over a 22-year period the average annual erosion index computed was 6,738 MJ.mm/.ha.h.year (values ranged from 3,444 to 13,830. Monthly and seasonal distributions of the erosion index were established. The data showed that 62% of the annual erosion potential occurs during the period from December to February. The frequency distribution of the total annual and maximum annual individual storm erosion index was skewed, but the logarithms of the data appeared to be normally distributed. Expected average monthly and annual values of erosion potential may be readily estimated from local rainfall amount records by the equation EI = 68,730 (p²/P0,841. A high correlation was found between actual and estimated EI values.

  19. Daily rainfall variability at a local scale (1,000 ha, in Piracicaba, SP, Brazil, and its implications on soil water recharge Variabilidade diária da chuva em uma escala local (1000 ha em Piracicaba, SP, e suas implicações na recarga da água do solo

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    K. Reichardt

    1995-04-01

    Full Text Available Daily rainfall variability at a local scale (1,000 ha was studied at Piracicaba, SP, Brazil, for the period of one year (1993-1994, in order to better understand the process of soil water recharge. Coefficients of variation of daily data for ten observation points varied from 2.2 to 169.3% and the variability was independent of rain type, i.e. whether convective, frontal or of other origin. Data were not related to separation distances between observation points and it is concluded that one observation point does not represent areas as far as 1,000 to 2,500 m apart, for daily, monthly or even quarterly averages. Yearly totals for the ten observation points presented a coefficient of variation as low as 3.06%, indicating that all points can replace each other in annual terms.A variabilidade diária da chuva em uma escala local (1000 ha foi estudada em Piracicaba, SP, Brasil, pelo período de um ano (1993-1994. Os coeficientes de variação de dados diários para dez pontos de observação variaram de 2,2 a 169,3 % e a variabilidade independeu do tipo de chuva, isto é, se convectiva, frontal ou de outra origem. Os dados não apresentaram correlação com a distância entre os pontos de observação e concluiu-se que uni ponto de observação não representa áreas distantes dele de 1000 a 2500 m, para médias diárias, mensais ou mesmo trimestrais. Os totais anuais dos dez pontos apresentaram um coeficiente de variação de apenas 3,06 %, indicando que cada ponto pode representar qualquer outro em termos anuais.

  20. Erosividade, coeficiente de chuva, padrões e período de retorno das chuvas de Quaraí, RS Erosivity, rainfall coefficient and patterns and return period in Quarai, RS, Brazi

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    Marcos Gabriel Peñalva Bazzano

    2007-10-01

    intermediário e 18 % do atrasado. Das chuvas erosivas, 57 % da erosividade correspondeu a chuvas do padrão avançado, 25 % a chuvas do padrão intermediário e 18 % a chuvas do padrão atrasado.The planning of agricultural and civil engineering activities must be based on knowledge of rainfall erosion potential. For Quarai, RS, Brazil, the rainfall erosivity and its relationship with precipitation and rainfall coefficient, rainfall patterns and rainfall return period were determined. Daily rainfall data from the 1966-2003 period were used. For each erosive rainfall the segments of the rainfall chart with the same intensity were separated and the data recorded in a worksheet. The mean precipitation and rainfall patterns were estimated, as well as the monthly and annual erosivity by the EI30 index (International System of Units, using the software Chuveros. The rainfall coefficient was calculated. Pearson correlations and linear regressions between the erosivity index EI30 and the mean annual precipitation and rainfall coefficient (Rc were performed. The rainfall maximum intensity was calculated by the method of extreme distribution type I for different rainfall durations (1/6, 1/3, 1/2, 1, 2, 4, 8, 12, 24 and 48 h and rainfall return periods (2, 5, 10, 20, 50 and 100 years. Equations were adjusted that relate the maximum intensity and rainfall duration to all return periods, by the method of simple linear regression, and the rainfall characteristics related in a graph. The mean annual values of EI30 (R factor of USLE determined for Quarai, RS, Brazil, was 9,292 MJ mm ha-1 h-1 year-1. The following equations were obtained: EI30 = -754.37 + 13.50 p (r² = 0.85 and EI30 = -47.35 + 82.72 Rc (r² = 0.84. In relation to the total precipitation studied, 44 % of the number of rainfalls and 90 % of the volume were erosive. Of the total rainfalls evaluated, 44 % of the number and 90 % of the volume were erosive. Of the total erosive rainfall events, 51 % had an advanced, 25 % had an

  1. Erosividade das chuvas associada a períodos de retorno e probabilidade de ocorrência no estado do Rio de Janeiro Rainfall erosivity associated to return periods and occurrence probability in the state of Rio de Janeiro, Brazil

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    Roriz Luciano Machado

    2013-04-01

    Full Text Available O conhecimento da erosividade das chuvas associada à probabilidade de ocorrência e ao período de retorno pode contribuir para o planejamento conservacionista de uma região, em médio e longo prazo. A fim de gerar informações para melhor utilizar modelos e controle da erosão, dados de chuvas de 30 séries pluviográficas e pluviométricas, abrangendo 25 municípios, entre 1933 e 2006, foram estudados quanto à adequação das séries e do cálculo da probabilidade de ocorrência teórica (P e período de retorno (T da erosividade das chuvas (EI30 e KE>25, para o Estado do Rio de Janeiro. Foi feita a espacialização do potencial erosivo associado aos períodos de retorno de 2, 5, 10, 20, 50 e 100 anos para todo o Estado. A erosividade anual média (EI30 ou fator R da USLE para qualquer localidade no Estado do Rio de Janeiro pode ser igualada ou superada pelo menos uma vez, em média, em um período de 1,8 a 2,1 anos, com faixa de 48,5 a 54,9 % de probabilidade de ocorrência teórica. As localidades que apresentam maior erosividade associada aos períodos de retorno estão situadas nas mesorregiões Metropolitanas e em partes das mesorregiões Sul e Centro Fluminense. Foi possível identificar de oito a 12 regiões homogêneas, quanto à distribuição espacial da erosividade associada aos períodos de retorno de dois para 100 anos no Estado. De modo geral, a maior variação da distribuição espacial da erosividade apresenta-se na faixa de período de retorno de dois a cinco anos.Knowledge on rainfall erosivity associated to occurrence probability and return periods can contribute to conservation planning in the medium and long term. With the objective of generating information for a better use of medium and long-term erosion models and erosion control, rainfall data of 30 pluviometric and pluviographic data sets from 25 cities ranging from 1933 to 2006 were studied in terms of adjustment of data sets, calculation of the probability of

  2. Chuva de sementes em Floresta Estacional Semidecidual em Viçosa, MG, Brasil Seed rain in a seasonal semideciduous forest at Viçosa, Minas Gerais State, Brazil

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    Érica Pereira de Campos

    2009-06-01

    Full Text Available Este estudo objetivou avaliar a composição florística, a densidade e a freqüência de sementes, em 25 coletores, em um trecho de Floresta Estacional Semidecidual. Além disso, classificar os táxons quanto à forma de vida, às síndromes de dispersão e, nas arbóreas, quanto ao estádio sucessional e verificar a similaridade florística entre as espécies identificadas na chuva de sementes e as espécies arbóreas localizadas nas mesmas parcelas dos coletores. O trabalho foi realizado entre dezembro/2004 a novembro/2006. Foram reconhecidos 43 táxons, sendo que Leguminosae foi representada por 11 espécies. A forma de vida dominante foi arbórea (63,1%, as lianas foram representadas por 28,9% das espécies amostradas, as herbáceas por 5,3% e as arbustivas por 2,6%. A densidade média de sementes no primeiro ano foi de 113,92 sementes.m-2 e no segundo de 2.603,84 sementes.m-2. Essas diferenças demonstraram heterogeneidade espacial e temporal da chuva de sementes. A similaridade florística encontrada pelo índice de Sørensen entre as espécies da chuva de sementes e as espécies arbóreas do trecho do fragmento estudado foi de 32%, valor considerado baixo (This study aims to evaluate the floristic composition, density and frequency of seeds in 25 traps in a section of seasonal semideciduous forest, as well as classify taxons as to life form, dispersal syndromes, and succession phase of the tree species, and verify floristic similarities between seed rain species and tree species located in the same plots. The work was carried out from December/2004 to November/2006. Forty three taxons were recognized and Leguminosae was represented by 11 species. The dominant life form was arboreal (63.1%, climbers were represented by 28.9% of the sampled species, herbs by 5.3% and shrubs by 2.6%. Mean seed density in the first year was 113.92 seeds.m-2 and 2603.84 seeds.m-2 in the second year. These differences showed spatial and seasonal heterogeneity

  3. A erosividade das chuvas em Fortaleza (CE: II - correlação com o coeficiente de chuva e atualização do fator R no período de 1962 a 2000 Rainfall erosivity in Fortaleza, Ceará State, Brazil: II - correlation with the rainfall coefficient and updating of factor R for the years 1962 to 2000

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    J. R. C. Silva

    2003-04-01

    Full Text Available A correlação entre o índice de erosividade EI30 e o coeficiente de chuva (Rc no período de 1962 a 1981, em Fortaleza (CE, foi avaliada com o objetivo não só de analisar a viabilidade de utilização do Rc na atualização dos valores da erosividade no período de 1982 a 2000 nesse município, mas também de identificar uma equação que pudesse ser empregada para estimar a erosividade em outras localidades da zona litorânea do estado do Ceará onde não existem diagramas de pluviógrafos. Um alto coeficiente de correlação (r = 0,99** foi encontrado entre os valores mensais do índice EI30 e o Rc. O melhor ajuste na regressão entre essas variáveis foi encontrado na equação EI30 = 73,989Rc0,7387. O emprego dessa equação permitiu atualizar o fator R em Fortaleza no período de 1962 a 2000, estendendo, dessa forma, a computação de dados de erosividade para uma série contínua de 39 anos. O fator R atualizado para essa série foi de 6.900 MJ mm (ha h ano-1 , com 69,5 % desse valor anual distribuído nos meses de janeiro a abril. Este trabalho também forneceu informações úteis para planejar o controle da erosão e para estimar, com precisão razoável, a erosividade em outros locais do litoral cearense, desprovidos de diagramas de pluviógrafos.The correlation between the erosivity index EI30 and the rainfall coefficient (Rc for the period of 1962 to 1981, in Fortaleza (CE, was evaluated to analyze the feasibility of the Rc use to update erosivity values from 1982 to 2000 in this county. An equation that could be used to estimate erosivity in other locations of the coastal region of Ceará State, where there are no rain gauge charts available, was a second aim. A high correlation coefficient (r = 0,99** was found between the monthly EI30 index and the Rc values. The best fit in the regression between these variables was found in the equation EI30 = 73,989Rc0,7387. The use of this equation allowed to update the R factor in

  4. Recovery of tungsten from wolframite from the Igarape Manteiga mine (Rondonia - Brazil) via acidic leaching; Isolamento do tungstenio da volframita da mina de Igarape Manteiga (Rondonia - Brasil) por lixiviacao acida

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    Paulino, Jessica Frontino; Afonso, Julio Carlos [Departamento de Quimica Analitica, Instituto de Quimica, Universidade Federal do Rio de Janeiro, RJ (Brazil); Mantovano, Jose Luiz; Vianna, Claudio Augusto; Cunha, Jose Waldemar Silva Dias da [Instituto de Engenharia Nuclear (IEN/CNEN-RJ), Rio de Janeiro - RJ (Brazil)

    2012-07-01

    We report results of the efficiency of tungsten extraction from wolframite concentrate (containing 61.5 wt % WO{sub 3}) from the Igarape Manteiga mine (state of Rondonia, Brazil) through acid leaching with strong mineral acids at 100 deg C and 400 rpm for 2-4 h. HCl yielded insoluble matter containing the highest WO{sub 3} content (90 wt %). This solid was dissolved in concentrated NH{sub 3(aq)} at 25 deg C and the insoluble matter filtrated. The filtrate was slowly evaporated. 70 wt % of the tungsten present in the starting concentrate material was recovered as ammonium paratungstate (APT). (author)

  5. A gênese da escassez de chuva em Maringá, Estado do Paraná, Brasil, durante os meses de maio de 2003 e maio de 2005 = The genesis of scanty rainfall in Maringá, Paraná State, Brazil, during the months of May 2003 and May 2005

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    Leonor Marcon da Silveira

    2010-01-01

    Full Text Available O presente estudo teve por objetivo identificar os sistemas atmosféricos geradores da escassez de chuvas durante os meses de maio de 2003 e maio de 2005, em Maringá, Estado do Paraná, Brasil. Para atingir os objetivos propostos, utilizaram-se dados meteorológicos de superfície referentes às variações diárias dos elementos climáticos, com os quais se elaborou uma tabela para cada um dos meses em estudo, eleitos como amostragem de meses de maio secos. Para identificar os sistemas atmosféricos promotores dos diferentes tipos de tempo, tais tabelas foram analisadas concomitantemente à análise de cartas sinóticas meteorológicas de superfície, também diárias, e de imagens de satélite. Constatou-se que a escassez de chuva em Maringá durante os períodos estudados decorreu da atuação de anticiclones frios, que penetraram na retaguarda dos sistemas frontais, e da atuação do Sistema Tropical Atlântico sobre o continente, o qual geralmente bloqueava as frentes frias próximo à latitude de 30°S, de modo que estas se deslocavam para o Atlântico antes de alcançarem a área em estudo. The atmospheric systems accountable for scanty rainfall during May 2003 and May 2005 in Maringá, Paraná State, Brazil, are identified. Surface meteorological data on daily variables of climatic elements have been employed for the creation of a table for each month under analysis. They were chosen as dry May samplings. Tables were analyzed concomitantly with an investigation on daily surface meteorological synoptic charts and on satellite photos, so that the atmosphericsystems causing different types of climate might be identified. Results show that scanty rainfall in Maringá during the periods under analysis was caused by cold anti-cyclone activities which followed after frontal systems and by the activities of Atlantic TropicalSystem on the South American subcontinent. The latter normally blocks out cold fronts near latitude 30°S which, in turn

  6. Spatial variability of the rainfall erosivity in southern region of Minas Gerais state, Brazil Variabilidade espacial da erosividade da chuva na região sul de Minas Gerais, Brasil

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    Regimeire Freitas Aquino

    2012-10-01

    do uso local da terra. Para tanto, determinou-se o fator erosividade para séries de precipitação pluviométrica, utilizando dados de precipitações obtidas junto à Agencia Nacional de Água - ANA, constituindo-se séries históricas que variaram de 15 a 40 anos. Os índices de erosividade mensais e anuais foram obtidos, utilizando a equação de Fournier utilizada em Lavras, MG e a variabilidade espacial da erosividade foi realizada com base nos princípios da geoestatística, considerando-se apenas a distância que os separa, construindo-se o semivariograma experimental isotrópico. O ajuste do semivariograma foi realizado com base no método dos Mínimos Quadrados Ponderados e no grau de dependência espacial. Definida a estrutura e o ajuste do semivariograma passou-se à fase de geração dos mapas de krigagem, gerando o comportamento espacial das erosividades, na região Sul de Minas Gerais. Observou-se que a região Sul de Minas Gerais apresenta elevados padrões de erosividade, com amplitude de 5.145 a 7.776 MJ mm ha-1 h-1 ano-1, para Ijaci (região norte e Itajubá (região sul, respectivamente. Os índices de erosividade da região do Sul de Minas Gerais foram considerados elevados e com forte influência da topografia, associados às características climáticas. Maiores erosividades estão associadas às áreas de maior altitude, como ao longo da Serra da Mantiqueira e em planaltos e serras elevadas no centro-norte da região. A abordagem geoestatística com dados de longo prazo de chuva para a região Sul de Minas Gerais, que é uma região relativamente heterogênea em termos de altitude, profundidade do solo e declive, mostrou-se adequada à proposta do presente estudo.

  7. Índice de cobertura vegetal pela cultura do milho no período de chuvas intensas no sul de Minas Gerais Plant cover index in the period of intensive rainfall for corn crop at south of Minas Gerais state, Brazil

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    Fabiana Silva de Souza

    2010-04-01

    Full Text Available A cobertura vegetal é a defesa natural do solo contra a erosão hídrica. Nos modelos de estimativas de perdas de solo, o efeito da cobertura vegetal na interceptação da energia cinética da chuva é a variável chave na modelagem do processo erosivo. Assim sendo, objetivou-se avaliar a eficiência da cobertura vegetal, proporcionada pela cultura do milho, e suas relações com os atributos fitotécnicos desta cultura para alguns híbridos. O estudo foi realizado no campo demonstrativo de híbridos de milho da Universidade Federal de Lavras, localizada no município de Lavras, MG. Para determinação da cobertura vegetal utilizou-se um aparato que consiste em uma estrutura horizontal, contendo orifícios para visualização dos pontos com cobertura e sem cobertura vegetal, sendo as leituras feitas de forma aleatória e transversalmente às linhas da cultura. Os atributos fitotécnicos avaliados foram altura da planta, estande, matéria seca e produção de grãos. Diante dos resultados pode-se concluir que o maior índice de cobertura vegetal foi observado para os híbridos de milho P 30F33, P 30F90, P 3021, STRIKE, FORT, VALENT, UFLA 2001, UFLA 2004, CO 32, D 8480, D 8420 DKB 333B, DKB 440, evidenciando boa qualidade como planta protetora do solo. No período de maior ocorrência de chuvas, na região sul de Minas Gerais, a cultura do milho pode minimizar o efeito do processo erosivo. A produção de matéria seca relacionou-se bem com o índice de cobertura vegetal, podendo ser um indicativo quanto à proteção do solo.The plant cover is a natural protection of soil against water erosion. In estimative models of soil loss, the effect of plant cover in the interception of rainfall kinetic energy is the key variable in the modeling of the erosive process. Thus, the aim of this work is to evaluate the efficiency of the plant cover provided by the corn crop and their relations with the phytotechnical attributes of this crop for its respective

  8. Antifertility activity of aqueous ethanolic extract of Hymenocardia acida stem bark in female rats

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    Uchendu Chukwuka Nwocha

    2011-01-01

    Full Text Available Background: Hymenocardia acida is traditionally used in African herbal medicine and has numerous therapeutic benefits. But little is known about its potentially negative effects on pregnant women. Objective: The aim of the present study was to evaluate the antifertility effect of aqueous ethanolic extract of Hymenocardia acida stem bark in female Wistar rats. Materials and Methods: Four groups of rats were administered orally aqueous ethanolic extract of Hymenocardia acida at doses of 100, 200 and 400 mg/kg body weight daily for 19 days. The control group received distilled water. On day 20 of gestation, each rat was laparatomised and number of corpora lutea of pregnancy, number of live fetuses as well as the postcoitum fertility index, weights of the foetuses and placentae were determined. Results: Oral administration of the extract from days 1 to 19 of gestation showed reduction (p<0.05 in the number of corpora lutea of pregnancy and number of live fetuses. Weights of fetuses of extract treated female rats were also smaller (p<0.05 compared with the control. Anti-implantation activity of the treatment groups were 41.4%, 48.3% and 51.7% for groups II to IV respectively, whereas antifertility activity of the groups was found to be 40%, 60% and 60% in the same order. Conclusion: The results suggest that aqueous ethanolic extract of Hymenocardia acida stem bark could induce negative effects on reproductive functions in female albino rats

  9. Kernel smoothing dos dados de chuva no Nordeste

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    Nyedja F. M. Barbosa

    2014-07-01

    Full Text Available O regime de chuvas sobre o Nordeste do Brasil é bastante complexo, sendo considerado sazonal, além de sofrer fortes influências dos fenômenos El Niño, La Niña e outros sistemas meteorológicos, como o dipolo, atuantes sobre as bacias do oceano Atlântico Tropical. Neste trabalho foi aplicada a técnica matemática-computacional de interpolação do Kernel Smoothing nos dados de precipitação pluvial sobre o Nordeste, coletados no período de 1904 a 1998, provenientes de 2.283 estações meteorológicas. Os cálculos foram desenvolvidos por meio do software "Kernel", escrito em linguagem C e Cuda o que possibilitou fazer a interpolação de mais de 26 milhões de medidas de precipitação pluvial, permitindo gerar mapas de intensidade de chuva sobre toda a região e calcular estatísticas para a precipitação do Nordeste em escalas mensais e anuais. De acordo com as interpolações realizadas foi possível detectar, dentre o período estudado, os anos mais secos e mais chuvosos, a distribuição espacial das chuvas em cada mês, bem como a característica da precipitação pluviométrica em épocas de El Niño e La Niña.

  10. Vulnerabilidade socioambiental, redução de riscos de desastres e construção da resiliência: lições do terremoto no Haiti e das chuvas fortes na Região Serrana, Brasil Socio-environmental vulnerability, disaster risk-reduction and resilience-building: lessons from the earthquake in Haiti and torrential rains in the mountain range close to Rio de Janeiro in Brazil

    Directory of Open Access Journals (Sweden)

    Carlos Machado de Freitas

    2012-06-01

    Full Text Available Dados sobre desastres no mundo apontam para uma maior gravidade nos países com menores níveis de desenvolvimento econômico e social. Neste contexto, políticas de redução de riscos de desastres e construção da resiliência constituem prioridades na agenda do desenvolvimento sustentável, estando entre os temas eleitos para a Rio+20. O objetivo deste artigo é, através de uma contribuição de natureza conceitual e dos exemplos de desastres em países com níveis de desenvolvimento diferentes, o terremoto do Haiti e as chuvas fortes na Região Serrana (Rio de Janeiro, Brasil, demonstrar como a vulnerabilidade socioambiental cria condições para os desastres, ao mesmo tempo em que limita as estratégias para prevenção e mitigação. Ao final são apontados alguns dos desafios que a redução de riscos de desastres e a construção da resiliência exigem em contextos de vulnerabilidade socioambiental, o que inclui mudanças nos padrões de desenvolvimento social, econômico e ambiental orientados para a sustentabilidade ecológica e a justiça social como pilares do desenvolvimento sustentável.Data on disasters around the world reveal greater seriousness in countries with lower social and economic development levels. In this context, disaster risk-reduction and resilience-building policies are priorities in the sustainable development agenda, featuring among the topics selected for the Rio+20 Summit. By means of a contribution of a conceptual nature and from examples of disasters in countries with different development levels, namely the Haiti earthquake and the torrential rains in the mountain range close to Rio de Janeiro in Brazil, the scope of this article is to demonstrate how socio-environmental vulnerability creates conditions for disasters, while at the same time limiting strategies for their prevention and mitigation. Lastly, some of the measures that disaster risk reduction and resilience-building demand in a socio

  11. Análise de modelos matemáticos aplicados ao estudo de chuvas intensas

    Directory of Open Access Journals (Sweden)

    C. R. Mello

    2001-09-01

    Full Text Available A estimativa de chuvas intensas máximas é de grande importância para o dimensionamento de projetos agrícolas, tais como: terraços para controle de erosão, obras de barragens de terra e drenagem em solo agrícola. As chuvas são caracterizadas pela sua intensidade (mm h-1, pelo tempo de duração (min e pelo período de retorno (anos. O modelo básico tem sido usado para determinação da intensidade de precipitação máxima diária a ser aplicada no dimensionamento de estruturas de contenção, fixando-se o período de retorno e a duração da chuva. O tempo de concentração em bacias hidrográficas, que normalmente fica entre 60 e 120 min para bacias consideradas pequenas, tem sido usado como tempo de duração na estimativa de chuvas intensas. Nesse intervalo, existem outros modelos que propiciam melhores ajustes e, conseqüentemente, maior confiabilidade na estimativa da chuva a ser usada nos dimensionamentos de estruturas de contenção. Assim, este trabalho teve como objetivo ajustar dois outros modelos para a estimativa de chuvas intensas: um exponencial e um linear, além do modelo básico. Esses modelos foram ajustados com base em dados de precipitação máxima diária anual da região de Lavras (MG, empregando-se dados de chuvas diárias do período de 1914 a 1991. Os dados foram transformados em intensidades de precipitação, com tempo de retorno variando de 2 a 100 anos e duração entre 5 e 1.440 min. Verificou-se que o modelo exponencial proposto proporcionou melhores ajustes, com menores erros na estimativa, para chuvas variando de 5 a 240 min, sendo, portanto, recomendável a bacias em que o tempo de concentração se enquadre nesta faixa de tempo; o modelo básico mostrou-se mais aplicável a bacias em que o tempo de duração seja maior que 240 min, enquanto o modelo linear não se mostrou confiável para a estimativa de chuvas intensas.

  12. Brazil.

    Science.gov (United States)

    1985-09-01

    Brazil's population in 1985 was 135 million, with an annual growth rate (1982) of 2.3%. The infant mortality rate (1981) was 92/1000, and life expectancy stood at 62.8 years. 76% of the adult population was literate. Brazil is a federal republic which recognizes 5 political parties. 55% of the population is Portuguese, Italian, German, Japanese, African, or American Indian; 38% is white. Of the work force of 50 million, 35% are engaged in agriculture, 25% work in industry, and 40% are employed in services. Trade union membership totals 6 million. The agricultural sector accounts for 12% of the GDP and 40% of exports. Brazil is largely self-sufficient in terms of food. The GDP was US$218 billion in 1984, with an annual growth rate of 4%. Per capita GDP was US$1645. Brazil's power, transportation, and communications systems have improved greatly in recent years, providing a base for economic development. High inflation rates have been a persistent problem.

  13. Chuva de sementes em remanescentes florestais de Campo Verde, MT

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    William Pietro-Souza

    2014-08-01

    Full Text Available O objetivo deste trabalho consistiu em avaliar sazonalmente a produção de sementes provenientes de fragmentos florestais presentes na zona rural de Campo Verde, MT. Essa caracterização ocorreu em termos de produção de sementes e riqueza de espécies vegetais. Foram selecionados três fragmentos florestais caracterizados como Floresta Estacional Semidecidual. Em cada fragmento, cinco coletores foram instalados e confeccionados com canos de PVC (1 m²; malha de náilon de 0,001 m e 0,15 m de profundidade do bojo. O material foi coletado mensalmente, cujas sementes foram quantificadas e separadas conforme a síndrome de dispersão, etapa sucessional e forma de vida. Houve a determinação da densidade, frequência absoluta, índice de diversidade e equitabilidade. Ao todo, foram obtidas 3.622 sementes, pertencentes a 74 táxons. Maiores densidades de sementes foram observadas durante os meses de setembro, outubro e novembro. As lianas Gouania sp., Fridericia speciosa, Heteropterys sp. e Distictella sp. responderam com 55,95% do total de sementes aportadas. Das espécies que compuseram a chuva de sementes, 74% não são dispersas pelo vento. Todavia, quando se verificou a quantidade de diásporos coletados, formas dispersas pelo vento foram predominantes, representando 76% do total. Citam-se como táxons arbóreos importantes para a recomposição florestal na região de Campo Verde, situada no Sudeste de Mato Grosso: Tachigali rubiginosa, Siparuna guianensis, Nectandra sp., Cordia alliodora, Alibertia sp., Terminalia brasiliensis e Myrcia sp. Essas espécies devem ser alvo de estudos mais específicos relacionados ao seu potencial para recuperação de ambientes degradados, considerando-se as Áreas de Preservação Permanente e Reservas Legais.

  14. Anti-inflammatory activity of copao (Eulychnia acida Phil., Cactaceae) fruits.

    Science.gov (United States)

    Jiménez-Aspee, Felipe; Alberto, Maria Rosa; Quispe, Cristina; Soriano, Maria del Pilar Caramantin; Theoduloz, Cristina; Zampini, Iris Catiana; Isla, Maria Ines; Schmeda-Hirschmann, Guillermo

    2015-06-01

    Copao (Eulychnia acida Phil., Cactaceae) is an endemic species occurring in northern Chile. The edible fruits of this plant are valued for its acidic and refreshing taste. Phenolic-enriched extracts from copao fruit pulp and epicarp, collected in the Elqui and Limari river valleys, were assessed by its in vitro ability to inhibit the pro-inflammatory enzymes lipoxygenase (LOX) and cyclooxygenases (COX-1 and COX-2). At 100 μg/mL, pulp extracts showed better effect towards LOX than epicarp extract, while COX-2 inhibition was observed for both epicarp and pulp samples. In general, the extracts were inactive towards COX-1. A positive correlation was observed between the anti-inflammatory activity and the main phenolic compounds found in this fruit. Copao fruits from the Limari valley, a main place of collection and commercialization, showed major activity, adding evidence on the possible health-beneficial effects of this native Chilean fruit.

  15. Simulador de chuva tipo empuxo com braços movidos hidraulicamente: fabricação e calibração Rainfall simulator thrust type with hydraulically moved arms: fabrication and calibration

    Directory of Open Access Journals (Sweden)

    Ildegardis Bertol

    2012-12-01

    Full Text Available O uso de simuladores de chuva é fundamental em estudos de erosão hídrica pluvial. Com eles é possível controlar as condições experimentais, principalmente as características da chuva, e compreender melhor o processo erosivo do solo. Vários tipos de simulador de chuva foram desenvolvidos desde 1930 no mundo. Atualmente, o tipo Swanson é o mais utilizado. No entanto, um pequeno número desses simuladores está em pleno funcionamento no Brasil, devido ao alto grau de desgaste e às dificuldades de manutenção. O objetivo deste trabalho foi desenvolver um novo modelo de simulador de chuva, construído predominantemente em alumínio, desprovido de motor para rotação dos braços e movido hidraulicamente por empuxo. O simulador de chuva movido hidraulicamente por empuxo mantém em geral as características do modelo Swanson, sobretudo aquelas relacionadas às características de chuva produzida, tendo sido minimizados seu excesso de peso e a necessidade de uso de um motor a gasolina para movimento dos braços, denominado "Tipo Empuxo". Essas características tornaram o novo modelo mais leve, econômico, silencioso e de fácil manejo na área experimental do que o modelo Swanson, sendo possível deslocá-lo com apenas quatro pessoas. A intensidade da chuva correlacionou-se linear e positivamente com a pressão da água no manômetro.The use of rain simulators is fundamental to study rainfall erosion. They are used to monitor the experimental conditions, particularly the rain characteristics and to understand the soil erosion process better. Several types of rainfall simulators have been developed since 1930 around the world. Currently, the Swanson model is the most commonly used. However, a small number of these simulators is fully operational in Brazil, due to the high degree of wear and difficulties of maintenance. The purpose of this study was to develop a new rainfall simulator model, made mostly of aluminum, with no motor to rotate the

  16. Efeito do período de chuva no controle de Euphorbia heterophylla e Ipomoea purpurea pelos herbicidas glyphosate e sulfosate Effect of rainfall on Euphorbia heterophylla and Ipomoea purpurea control by glyphosate and sulfosate

    Directory of Open Access Journals (Sweden)

    P.A. Monquero

    2007-01-01

    Full Text Available Avaliou-se a influência do período de chuva sobre a eficácia dos herbicidas sulfosate e glyphosate no controle de Euphorbia heterophylla e Ipomoea purpurea. O experimento foi instalado em casa de vegetação, no Centro de Ciências Agrárias/UFSCar, em Araras, SP. Os tratamentos, além da testemunha, consistiram na aplicação de duas doses em equivalente ácido dos herbicidas sulfosate (0,66 e 1,32 kg ha-1 e glyphosate (0,72 e 1,44 kg ha-1, sendo as plantas tratadas submetidas à simulação de chuva de 20 mm durante 30 minutos, nos intervalos de 2, 4, 6, 8 e 48 horas após a aplicação. O delineamento experimental utilizado foi o inteiramente casualizado, com quatro repetições. A eficácia no controle das plantas daninhas foi avaliada 7, 14 e 21 dias após a aplicação dos tratamentos (DAT e a matéria seca, aos 28 DAT. E. heterophylla não foi eficazmente controlada pelo herbicida glyphosate, exigindo intervalo sem chuva superior a 24 horas após a aplicação para obter, na maior dose, controle de apenas 60%. Por sua vez, o herbicida sulfosate proporcionou controle de 75%, mesmo na menor dose, quando a chuva ocorreu quatro horas depois da aplicação. I. purpurea também não foi controlada de maneira eficaz pelo herbicida glyphosate, independentemente da dose e do intervalo de chuva; no entanto, somente a maior dose do herbicida sulfosate foi eficiente no controle desta espécie, a partir de quatro horas sem chuva. Para ambas as espécies, o herbicida sulfosate foi menos afetado pelo período da chuva.The influence of rainfall occurrence was evaluated on the efficacy of the herbicides glyphosate and sulfosate applied in post-emergence on Euphorbia heterophylla and Ipomoea purpurea. The experiment was conducted under greenhouse conditions at the Centro de Ciências Agrárias/UFSCar, in Araras-SP, Brazil. The treatments,plus control, consisted of two doses, in acid equivalent of sulfosate (0.66 and 1.32 kg ha-1 and glyphosate (0.72 and

  17. Momento da chuva após a aplicação e a eficácia dos herbicidas sulfosate e glyphosate aplicados em diferentes formulações Rainfastness and glyphosate and sulfosate efficacy using different formulations

    Directory of Open Access Journals (Sweden)

    A.F.F. Pedrinho Júnior

    2002-04-01

    Full Text Available Com o objetivo de estudar a influência da chuva sobre o desempenho dos herbicidas sulfosate e glyphosate em diferentes formulações, foram conduzidos dois experimentos, um no inverno de 2000 e outro no verão de 2001, na Fazenda Experimental de Ensino e Pesquisa da Faculdade de Ciências Agrárias e Veterinárias, Campus de Jaboticabal-SP. Os experimentos foram instalados segundo o delineamento experimental de blocos ao acaso, com quatro repetições, no arranjo fatorial de 4x5+1, ou seja, quatro tratamentos de herbicidas, cinco períodos sem chuva após a aplicação e uma testemunha, que não recebeu chuva. As formulações de glyphosate foram: SAqC (1,0 L ha-1, GrDA (0,5 kg ha-1, SAqC Transorb (0,75 L ha-1, mais o sulfosate SAqC (1,09 L ha¹. Os períodos sem chuva após a aplicação foram de 1, 2, 4, 6 e > 48 horas. Os herbicidas foram aplicados em pós-emergência das plantas daninhas, utilizando-se de um pulverizador costal, à pressão constante (mantida por ar comprimido de 30 lbf pol-2. A chuva foi simulada com um sistema de irrigação por aspersão. A lâmina de água variou entre 18 e 19 mm. Em ambas as épocas, a chuva simulada foi prejudicial à ação dos herbicidas, principalmente quando feita nos menores intervalos após a aplicação. Os sintomas de fitointoxicação apareceram mais rapidamente no verão. A formulação Transorb, comercializada como não sendo afetada pela chuva uma hora após a aplicação, não teve o desempenho esperado, tanto no inverno quanto no verão, para períodos de até seis horas sem chuva após a aplicação. O sulfosate apresentou o melhor controle geral das plantas avaliadas, quando se simulou chuva após seis horas, em ambas as épocas. A formulação GrDA foi a mais afetada pela ação da chuva em ambas as épocas.Two field assays were carried out to evaluate the rainfall effects on sulfosate and glyphosate herbicide activity, using different formulations, under two growing seasons (winter

  18. The Sao Paulo Lightning Mapping Array (SPLMA): Prospects to GOES-R GLM and CHUVA

    Science.gov (United States)

    Albrecht, Rachel I.; Carrey, Larry; Blakeslee, Richard J.; Bailey, Jeffrey C.; Goodman, Steven J.; Bruning, Eric C.; Koshak, William; Morales, Carlos A.; Machado, Luiz A. T.; Angelis, Carlos F.; Pinto, Osmar, Jr.; Naccarato, Kleber; Saba, Marcelo

    2010-01-01

    This paper presents the characteristics and prospects of a Lightning Mapping Array to be deployed at the city of S o Paulo (SPLMA). This LMA network will provide CHUVA campaign with total lightning, lightning channel mapping and detailed information on the locations of cloud charge regions for the thunderstorms investigated during one of its IOP. The real-time availability of LMA observations will also contribute to and support improved weather situational awareness and mission execution. For GOES-R program it will form the basis of generating unique and valuable proxy data sets for both GLM and ABI sensors in support of several on-going research investigations

  19. Efeito da chuva ácida em aços inoxidáveis coloridos

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    Célia Regina de Oliveira Loureiro

    2007-03-01

    Full Text Available Em função da crescente demanda de utilização do aço inoxidável, na arquitetura, como material de revestimento externo e, considerando a preocupação dos órgãos de controle ambiental com a poluição no meio urbano, foram avaliados os efeitos da chuva ácida nas condições superficiais do aço inoxidável colorido e na lixiviação de cromo para o ambiente. Para esse estudo, foram realizados, em laboratório, ensaios de imersão de chapas de aço inoxidável colorido e natural em solução simulada de chuva ácida, sendo avaliados a liberação de cromo para a solução e a alteração da aparência superficial das amostras em tempos de exposição de 1, 3, 7, 14 e 28 dias. Nas amostras de aço inoxidável, com e sem coloração, foram medidos a cor e o brilho e, para soluções ácidas remanescentes, foram realizadas análises de cromo total e cromo hexavalente. Os resultados obtidos mostraram que, independente do tempo de contato do aço inoxidável colorido com a solução de chuva ácida, houve preservação da aparência do material, sem alteração das condições superficiais, e o teor de cromo hexavalente na solução se apresentou em níveis muito inferiores aos estabelecidos pelo Conselho de Política Ambiental de Minas Gerais - COPAM.Considering the increase of stainless steel application for exteriors in architecture and governmental environment protection policies, the effect of acid rain exposure on the surface appearance and chromium release of colored stainless steel and uncolored substrate was investigated. Laboratory experiments were conducted by immersing stainless steel samples in an artificial acid rain solution for 1, 3, 7, 14 and 28 days exposure. The surface appearance of the samples was evaluated by color and brightness measurements and chromium release by chemical analysis of total and hexavalent chromium. The obtained results have shown that the surface appearance of the stainless steel was preserved and the

  20. Distribuição e potencial erosivo das chuvas no Estado do Tocantins

    Directory of Open Access Journals (Sweden)

    Marcelo Ribeiro Viola

    2014-02-01

    Full Text Available O objetivo deste trabalho foi determinar os valores de erosividade e gerar os mapas da distribuição espaço-temporal das chuvas no Estado do Tocantins. Analisaram-se séries históricas pluviométricas de 97 postos pluviométricos, compreendendo o período de 1985 a 2009. A erosividade foi estimada por meio de equações nas quais a variável independente foi a precipitação média mensal ou o coeficiente de chuva de Fournier (Rc. A geoestatística foi aplicada para o mapeamento da erosividade tanto na escala mensal quanto na anual. A erosividade anual apresentou valores entre 6.599 e 14.000 MJ mm ha-1 h-1, com auge em dezembro, quando atingiu valores de até 2.800 MJ mm ha-1 h-1 por mês. De maio a setembro, a erosividade apresentou valores inferiores ao crítico, tido como 500 MJ mm ha-1 h-1 por mês. Foram identificadas três regiões prioritárias para ações de planejamento visando a conservação do solo e da água: região centro-oeste do Estado, nas imediações do Parque Estadual do Cantão, com maior erosividade anual; região norte do Estado, especialmente no primeiro trimestre; e região sudeste do Estado, no quarto trimestre.

  1. Erosividade das chuvas e sua distribuição entre 1989 e 1998 no município de Lages (SC

    Directory of Open Access Journals (Sweden)

    I. Bertol

    2002-06-01

    Full Text Available A erosão hídrica resulta da erosividade das chuvas e da erodibilidade dos solos. O conhecimento da erosividade, portanto, torna-se um guia valioso na recomendação de práticas de manejo e conservação do solo que visem à redução da erosão hídrica. O objetivo do trabalho foi identificar e quantificar o fator de erosividade das chuvas naturais de Lages (SC, bem como conhecer sua distribuição temporal. A pesquisa foi realizada em 2000, utilizando dados de chuvas e perdas de solo do período entre 1989 e 1998, no Centro de Ciências Agroveterinárias de Lages (SC, situado a 27º 49' de latitude Sul e 50º 20' de longitude Oeste, a 937 m de altitude média, na região do Planalto Sul Catarinense. Foram estudados diversos fatores de erosividade, utilizando os métodos de Wischmeier & Smith e de Wagner & Massambani, de 437 chuvas erosivas, num total de 966 chuvas, compreendendo um volume médio anual de 1.301 mm de chuvas erosivas, num total médio anual de 1.549 mm de chuvas. O EI30 é o fator de erosividade (fator R da Equação Universal de Perda de Solo - EUPS recomendado para Lages, cujo valor médio anual é de 5.790 MJ mm ha-1 h-1; 63 % do qual ocorre na primavera-verão; 76 % no período de setembro a março e, no período crítico, outubro, janeiro e fevereiro, 41 % do referido fator. Considerando o número e o volume das chuvas, 45 e 84 %, respectivamente, são erosivas.

  2. Intensidade-duração-frequência de chuvas para o Estado de Mato Grosso do Sul Intensity-duration-frequency of rainfall for the State of Mato Grosso do Sul

    Directory of Open Access Journals (Sweden)

    Glenio G. Santos

    2009-12-01

    Full Text Available A ausência de equações de chuvas intensas para o Estado do Mato Grosso do Sul e a necessidade de maior segurança na elaboração de projetos e dimensionamento de obras hidráulicas, foram o alicerce para, com este estudo, se obtivessem e espacializassem as relações de intensidade, duração e frequência de precipitações para o Estado. Utilizou-se, então, da metodologia da desagregação da chuva de 24 h e se utilizaram dados pluviométricos consistidos de 109 estações disponíveis no banco de dados da Agência Nacional de Águas. As equações de chuvas intensas apresentaram bom ajuste, com coeficientes de determinação acima de 0,99 para todas as localidades estudadas. Os parâmetros ajustados apresentaram alta variabilidade resultando em grandes diferenças nos valores de precipitações intensas esperadas para as diferentes localidades. A espacialização permitiu boa visualização das diferenças evidenciando maiores intensidades esperadas na região centro-norte e as menores intensidades nas regiões sudeste e sudoeste do Estado. Os resultados demonstram a importância da obtenção da equação de intensidade-duração-frequência para cada localidade e sua utilização para a realização de estudos e projetos hidráulicos.Rain intensity data are necessary to increase security of hydraulic projects. The objective of this study was to determine the rain storm equations and the spatial distribution of rain intensity for the State of Mato Grosso do Sul, Brazil. The equations were obtained by disaggregation of 24 h rain data from 109 pluviometric stations available in the National Water Agency (ANA data bank. These equations resulted in coefficients of determination above 0,99 for all localities. The adjusted parameters showed high variability, resulting from different rain intensities in different places of the State. The interpolation of data allowed good visualization of the differences, evidencing higher intensities of rains

  3. EROSIVIDADE DAS CHUVAS EM PARTE DO ALTO CURSO DO RIO BANABUIU - SERTÃO CENTRAL DO CEARÁ

    OpenAIRE

    Cabral, Léya Jéssyka Rodrigues Silva; Universidade Federal do Piauí; Valladares, Gustavo Souza; Universidade Federal do Piauí; Aquino, Cláudia Maria Sabóia; Universidade Federal do Piauí

    2015-01-01

    Para melhor utilização e conservação das terras é necessário conhecer as potencialidades erosivas das chuvas. O trabalho teve como objetivo analisar a erosividade das chuvas de parte do alto curso do rio Banabuiu, localizado no sertão central do Ceará, utilizando o índice de Fournier, adaptado por Silva (2004). Para a realização dos mapas foram utilizados dados de precipitação média considerando uma série histórica de 30 anos, de 12 postos pluviométricos. A partir dos dados foram calculados o...

  4. Acid rain effect in the constituent material of Mexican Mayan monuments; Efecto de la lluvia acida en el material constituyente de los monumentos Mayas mexicanos

    Energy Technology Data Exchange (ETDEWEB)

    Bravo Alvarez, H.; Soto Ayala, R.; Sosa Echeverria, R.; Sanchez Alvarez, P. [Facultad de Ingenieria, UNAM, Mexico, D.F. (Mexico)

    2003-12-01

    Actually, acid rain is considered as a potential problem that affects materials and ecosystems. The effect on monuments, made mainly from limestone, has been studied for long time. In this work, a sample of limestone from Tulum, Quintana Roo, was studied. The following parameters were measured: density, porosity and percentage of water adsorption. Also, the sample was irrigated with acid rain prepared in the laboratory (pH 4.6), based in the chemical composition of 56 rain samples from Puerto Morelos, Quintana Roo, in 1994 and 1995. The results obtained show that acid rain is neutralized by calcium carbonate from the limestone. The high calcium concentrations in the effluent show that limestone is dissolved by acid rain. Superficial recession was 4.4 {mu}m/year under experimental conditions used. [Spanish] Actualmente la lluvia acida se ha convertido en un problema potencial que afecta en mayor o menor grado a materiales y a los ecosistemas. El efecto que causa la lluvia acida en monumentos construidos fundamentalmente de roca caliza, ha sido objeto de muchas investigaciones realizadas, prioritariamente, por paises que poseen estructuras, cuyo material de construccion es caliza. En este trabajo de investigacion se estudio una muestra de roca caliza proveniente de los monumentos mayas de Tulum, Quintana Roo. Se determinaron los parametros de densidad, porosidad y porcentaje de adsorcion de agua. Asimismo, se efectuo la irrigacion de la muestra con lluvia acida (pH aprox. 4.6), preparada en el laboratorio con base en la composicion quimica que se determino en 56 muestras de agua de lluvia provenientes de Puerto Morelos, punto cercano a los monumentos de Tulum, Quintana Roo, durante los anos 1994 y 1995. Los resultados permiten concluir que la lluvia acida sufre un proceso de neutralizacion con el carbonato de calcio de la roca caliza. Las altas concentraciones de calcio en el efluente, mostraron que la roca caliza sufrio una disolucion con la lluvia acida. La

  5. Effect of the acid rain in the constituent material of the Mayan Mexican monuments; Efecto de la lluvia acida en el material constituyente de los monuments mayas mexicanos

    Energy Technology Data Exchange (ETDEWEB)

    Bravo Alvarez, H; Soto Ayala, R; Sosa Echeverria, R; Sanchez Alvarez, P [Universidad Nacional Autonoma de Mexico, Mexico, D.F. (Mexico)

    2003-10-15

    Actually, acid rain is considered as a potential problem that affects materials and ecosystems. The effect on monuments, made mainly from limestone, has been studied for long time. In this work, a sample of limestone from Tulum, Qintana Roo, was studied. The following parameters were measured: density, porosity and percentage of water adsorption. Also, the sample was irrigated with acid rain prepared in the laboratory (pH = 4.6), based in the chemical composition of 56 rain samples from Puerto Morelos, Quintana Roo, in 1994 and 1995. The results obtained show that acid rain is neutralized by calcium carbonate from the limestone. The high calcium concentrations in the effluent, show that limestone is dissolved by acid rain. Superficial recession was 4.4 {mu}m/year under experimental conditions used. [Spanish] Actualmente la lluvia acida se ha convertido en un problema potencial que afecta en mayor o menor grado a materiales y a los ecosistemas. El efecto que causa la lluvia acida en monumentos construidos fundamentalmente de roca caliza, ha sido objeto de muchas investigaciones realizadas, prioritariamente, por paises que poseen estructuras, cuyo material de construccion es caliza. En este trabajo de investigacion se estudio una muestra de roca caliza proveniente de los monumentos mayas de Tulum, Quintana Roo. Se determinaron los parametros de densidad, porosidad y porcentaje de adsorcion de agua. Asimismo, se efectuo la irrigacion de la muestra con lluvia acida (pH aprox.4.6), preparada en el laboratorio con base en la composicion quimica que se determino en 56 muestras de agua de lluvia provenientes de Puerto Morelos, punto cercano a los monumentos de Tulum, Quintana Roo, durante los anos 1994 y 1995. Los resultados permiten concluir que la lluvia acida sufre un proceso de naturalizacion con el carbonato de calcio de la roca caliza. Las altas concentraciones de calcio en el efluente, mostraron que la roca caliza sufrio una disolucion con la lluvia acida. La

  6. Análise do regime hídrico de Patos-PB por meio do Índice de Anomalia de Chuvas (IAC

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    M. F. A. Alves

    2015-12-01

    Full Text Available A seca é um fenômeno natural que o ser humano não consegue impedir que ocorra. Nesse sentido, a presente pesquisa tem por objetivo, analisar o comportamento do regime hídrico do município de Patos interior da Paraíba, no período de 1994 a 2009 utilizando o IAC. Para o desenvolvimento da pesquisa, realizou-se um levantamento pluviométrico de 15 anos obtidos no site da Agência Executiva de Gestão das Águas da Paraíba (AESA de 1994 a 2009. Os dados foram disponibilizados em planilha eletrônica do Microsoft Excel com informações diárias, mensais e anuais e por último foi analisado o comportamento das precipitações através do Índice de Anomalia de Chuva (IAC, que é bastante simples e empregado para avaliação dos períodos secos ou úmidos. Pelo o estudo observou-se que apenas 2009 apresentou um mês (abril, como extremamente úmido e os demais anos foram classificados como muito úmidos, úmidos e secos. O ano mais seco foi 1998 que apresentou anomalias negativas de fevereiro a maio, seguido de 1999 com anomalias negativas em fevereiro e abril do período chuvoso. Dos resultados se percebe que as principais chuvas que ocorrem sob a região estudada caem sobre a terra de forma mal distribuída e irregular, e que o índice pluviométrico da região, se comparado com outras regiões áridas do planeta, o semiárido paraibano é um dos que mais chove em todo mundo, deixando claro que a falta de água que assola os nordestinos são decorrentes das características das chuvas. Percebe-se que apenas 2009 apresentou mês tido como extremamente úmido e isso não é caraterístico da região, devendo-se, sobretudo a modelos de estabilização da atmosfera por eventos meteorológicos que provocaram as chuvas fora do período chuvoso de Patos. Analysis of water regime of Patos-PB through Rainfall Anomaly Index (RAIAbstract: Drought is a natural phenomenon that humans can't prevent that from occurring. In this sense, this research aims

  7. Simulador de chuva tipo empuxo com braços movidos hidraulicamente: fabricação e calibração

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    Ildegardis Bertol

    2012-12-01

    Full Text Available O uso de simuladores de chuva é fundamental em estudos de erosão hídrica pluvial. Com eles é possível controlar as condições experimentais, principalmente as características da chuva, e compreender melhor o processo erosivo do solo. Vários tipos de simulador de chuva foram desenvolvidos desde 1930 no mundo. Atualmente, o tipo Swanson é o mais utilizado. No entanto, um pequeno número desses simuladores está em pleno funcionamento no Brasil, devido ao alto grau de desgaste e às dificuldades de manutenção. O objetivo deste trabalho foi desenvolver um novo modelo de simulador de chuva, construído predominantemente em alumínio, desprovido de motor para rotação dos braços e movido hidraulicamente por empuxo. O simulador de chuva movido hidraulicamente por empuxo mantém em geral as características do modelo Swanson, sobretudo aquelas relacionadas às características de chuva produzida, tendo sido minimizados seu excesso de peso e a necessidade de uso de um motor a gasolina para movimento dos braços, denominado "Tipo Empuxo". Essas características tornaram o novo modelo mais leve, econômico, silencioso e de fácil manejo na área experimental do que o modelo Swanson, sendo possível deslocá-lo com apenas quatro pessoas. A intensidade da chuva correlacionou-se linear e positivamente com a pressão da água no manômetro.

  8. Evaluación de un inhibidor utilizado en soluciones acidas bajo condiciones hidrodinámicas controladas

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    Salinas-Bravo, V. M.

    1997-06-01

    Full Text Available The cylindrical rotating electrode and electrochemical techniques were used to investigate the protection against corrosion of a commercial inhibitor used in hydrochloric acid solutions with and without additions of thiourea and ammonium bifluoride. The corrosion phenomenon was investigated under controlled hydrodynamic conditions. These were chosen to simulate those found in a pipe at different flow velocities. It was found that corrosion of mild steel in hydrochloric acid solutions with inhibitor is mainly controlled by activation, whereas in acid solutions with inhibitor added with thiourea and ammonium bifluoride it is mainly controlled by mass transfer. On the other hand, flow velocity of the acidic solutions affects negatively the efficiency of the inhibitor in the concentration range of 0.2 to 1.0 %.

    Utilizando el electrodo cilíndrico rotatorio y técnicas electroquímicas, se estudió la eficiencia de la protección contra la corrosión de un inhibidor comercial utilizado en soluciones de ácido clorhídrico con y sin adiciones de tiourea y bifluoruro de amonio. El fenómeno de la corrosión se investigó en condiciones hidrodinámicas controladas, seleccionadas para simular las que se establecen en una tubería a distintas velocidades de flujo. Se encontró que la corrosión del acero al carbono en soluciones de ácido clorhídrico con inhibidor de corrosión está controlada principalmente por activación, mientras que en soluciones acidas con inhibidor y adiciones de tiourea y bifluoruro de amonio está controlada principalmente por transferencia de masa. Por otra parte, la velocidad del flujo de las soluciones acidas afecta de -manera negativa a la eficiencia de protección del inhibidor estudiado en el intervalo de concentración de 0,2 a 1,0 %.

  9. Simulador de Chuvas, Erosão e Educação Ambiental | Rainfall Simulator, Erosion and Environmental Education

    Directory of Open Access Journals (Sweden)

    Bruno Bianchi Guimarães

    2014-05-01

    Full Text Available Normal 0 21 false false false PT-BR X-NONE X-NONE Introdução: O Simulador de Chuva é um equipamento preparado para produzir chuva de intensidade controlada para simular uma situação em que é possível comparar o que ocorre quando há precipitação sobre superfície de solo com algum tipo de cobertura vegetal, e quando essa cobertura vegetal for inexistente. O projeto tem como objetivo demonstrar os impactos ambientais causados pelo escoamento superficial nos solos, mostrando a importância da proteção dos solos, rios e vegetação; também tem como foco interpretar e compreender, através do ciclo hidrológico, como se dá o processo de erosão em um solo nu e um solo vegetado, além de conscientizar a população sobre atitudes que podem contribuir para a sustentabilidade. Metodologia/Desenvolvimento: O Simulador de Chuva consiste em um conjunto de tanques com terra que simulam diferentes tipos de solos em diferentes graus de inclinação; sobre esses tanques está um aparelho que simula a chuva e seu impacto sobre o solo. Nesse equipamento está acoplado um motor que gera o movimento que simula a ação do vento, deslocando as gotas d'água e fazendo chover de acordo com a intensidade escolhida pelo operador deste motor. O projeto é fruto de uma parceria entre a Companhia de Desenvolvimento Agrícola de São Paulo, a CODASP, a FCT/UNESP e o DAEE. A CODASP fornece o espaço para a realização das palestras e abriga o Simulador de Chuva, o que torna possível a visita de escolas, empresas e outras instituições que demonstrem interesse no assunto. Considerações finais: As atividades realizadas no Simulador de Chuva possibilitam o melhor entendimento de assuntos como a preservação do solo, o escoamento superficial, erosões e perdas de solo, assoreamento, dentre outros temas que ficam mais evidentes quando vistos a olho nu e de forma mais simplificada, principalmente para pessoas com pouco conhecimento no assunto, principalmente

  10. Erosão hídrica em um Argissolo Vermelho-Amarelo, sob diferentes padrões de chuva simulada Water erosion in a Yellow-Red Ultisol under different patterns of simulated rain

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    João R. de Oliveira

    2010-02-01

    Full Text Available Visou-se, neste trabalho, determinar as perdas de solo, água e nutrientes em um Argissolo Vermelho-Amarelo submetido a quatro diferentes padrões de chuva simulada. O estudo foi conduzido no Campo Experimental da Embrapa-Agrobiologia, localizado no município de Seropédica, RJ, e consistiu na aplicação de chuvas simuladas com diferentes padrões caracterizados como avançado (AV, intermediário (IN, atrasado (AT e constante (CT, em uma área amostral de 0,80 m de largura por 1,0 m de comprimento. As chuvas tiveram duração de 60 min com uma lâmina total aplicada de 30 mm e um pico de 110 mm h-1, para os padrões de intensidade variável. Os resultados obtidos possibilitaram concluir que após 60 min de chuva simulada as perdas de solo e água observadas para o padrão atrasado foram, em média, superiores em 61,6, 46,4 e 13,6%, respectivamente, para o CT, AV e IN (solo, e de 42,0, 19,0 e 19,0%, respectivamente, para o AV, IN e CT (água e as perdas de nutrientes não diferiram entre os padrões de precipitação, sendo mais influenciadas pelas perdas de água escoada superficialmente que pelo material sólido em suspensão.This study was carried out in order to determine the soil, water and nutrient losses in a Yellow-Red Ultisol, under four different patterns of simulated rainfall. The experiment was conducted at the Embrapa Agrobiologia experimental field, located in the municipality of Seropédica, Rio de Janeiro, Brazil. The study consisted in the application of simulated rains using variable rainfall intensity classified in different patterns as: advanced (AD, intermediate (IN, delayed (DE, and constant (CT, in plots 0.8 m wide and 1.0 m long. The rain had a duration of 60 min, with a total applied depth of 30 mm, and a peak of 110 mm h-1, for the variable intensity patterns. With the results obtained it was possible to verify that after 60 min of simulated DE pattern provided losses higher than CT, AD and IN, in 61.6, 46.4 and 13

  11. Efeito da cobertura nas perdas de solo em um argissolo vermelho-amarelo utilizando simulador de chuva Effect of the cover on soil losses in a red-yellow podzolic soil under simulated rainfall

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    Demétrius D. Silva

    2005-08-01

    Full Text Available O objetivo deste trabalho foi avaliar o efeito da porcentagem de cobertura do solo e da energia cinética decorrente de chuvas simuladas sobre as perdas de solo. O experimento consistiu de seis parcelas experimentais (4 m², as quais foram mantidas com coberturas de 0; 20; 40; 60; 80 e 100%, utilizando manta de Bidin, simulando condição de manejo de cultivo em contorno. Utilizou-se de simulador de chuva sobre Argissolo Vermelho-Amarelo, com declividade média de 9,5%. Foram utilizadas as intensidades de precipitação de 60; 80; 100 e 120 mm h-1, associadas às durações de 68; 40; 24 e 14 minutos, resultando nos valores de energia cinética de 1.401; 1.122; 841 e 589 J m-2, respectivamente. Para cada uma das intensidades de precipitação, realizaram-se seis aplicações sucessivas, espaçadas de 12 h. Verificou-se diminuição acentuada nas perdas de solo com o aumento da porcentagem de cobertura do solo e que os maiores valores de perda de solo foram obtidos para as menores intensidades de precipitação, em virtude da maior duração da precipitação. Observou-se, também, que a cobertura do solo apresentou maior influência do que a intensidade de precipitação nas perdas de solo e que o potencial erosivo das chuvas intensas foi reduzido pelo aumento da cobertura do solo, passando o processo de erosão a ser dominado pelo efeito erosivo do escoamento superficial, o qual ocorre por maior período nas chuvas menos intensas, por apresentarem maior duração.The present work was carried out in the experimental area of the Agronomy Department of the Viçosa Federal University, Brazil, aiming to evaluate the effect of soil cover and kinetic energy of rainfall on soil losses. The soil management used was the contour cropping, with six experimental units (4,0 m² with soil cover percentage of 0; 20; 40; 60; 80 and 100%. The tests were conducted with a rotative rainfall simulator and the soil in the experimental area was a Red-Yellow Podzolic

  12. Study of some factors of conservation of pollens of two plant species (Callistemon rigidus and Hymenocardia acida) of bee flora of Adamawa (Cameroon).

    Science.gov (United States)

    Tamnet, Richard; Youmbi, E; Ndzomo, G Tsala

    2010-05-15

    To contribute to the preservation of the bee flora of Adamawa, a study to determine the optimal conditions for preservation of Callistemon rigidus and Hymenocardia acida pollens, two endangered bee species, was conducted from March 2006 to March 2007 in this region. The study began by anthers collection at the experimental site and they were brought to the laboratory where fresh pollens are collected and undergo in vitro germination and storage tests. These tests have required the installation of two solidified media culture: Brewbaker and Kwack (BK) and Heslop-Harrison (HH) media to evaluate pollens germination under the influence of some physiological factors and assess the influence of storage at + 10 and -20 degrees C with and without initial drying. The results show that sucrose concentrations of 10 and 15% on BK medium has produced respectively 60.69 +/- 3.1 and 04.49 +/- 0.21% as the highest values of germination percentage in Callistemon rigidus and Hymenocardia acida. Temperatures of 30 and 25 degrees C which produced 60.69 +/- 2.53 and 04.25 +/- 0.29% of germination and pH 5 with 55.14 +/- 4.14% and 6.8 with 04.54 +/- 0.6% were respectively favourable in the same order for the germination of both species of pollens. Time for a week of drying allowed the extension of storage time of both species of pollens as from +10 to -20 degrees C. The Callistemon rigidus pollens were generally more tolerant to the storage at-20 degrees C showing the critical period of storage exceeding 22 weeks while those of Hymenocardia acida were less tolerant to both temperatures with most critical period of storage established to 8 weeks.

  13. Uma aplicação de conjuntos difusos na otimização do prognóstico de consenso sazonal de chuva no Nordeste do Brasil An application of fuzzy sets at otimization of the rainfall seasonal consensus forecast in Brszil's Northeast

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    Emerson Mariano da Silva

    2007-04-01

    Full Text Available Esse estudo apresenta a aplicação da teoria de conjuntos difusos como ferramenta para otimizar a previsão de consenso (PC sazonal de chuva da Região Semi-Árida do Nordeste do Brasil (RSANEB para o período de 1985-1996. Foram utilizados como variáveis de entrada parâmetros termodinâmicos sobre e nos Oceanos Atlântico e Pacífico Tropicais. Os resultados mostraram que qualitativamente, na escala interanual, o resultado determinístico dessa técnica aplicada a PC foi capaz de prever pelo menos uma das categorias da variável de saída (total de chuva de fevereiro a maio da RSANEB. Quantitativamente, os menores erros foram observados para os anos classificados na variável de saída nas categorias de Normal (N, Chuvoso (C, e Muito Chuvoso (MC, com correlações que variam de 0,8 a 0,85, dependendo do método de desfuzificação usado. Esta técnica permite unificar em um resultado determinístico todas as informações climáticas usadas na previsão sazonal de chuva da RSANEB, possibilitando seu prognóstico em mais de uma categoria, informando a mais provável a vir a ocorrer em função do seu nível de pertinência.This study presents the application of fuzzy sets theory as a tool for sazonal rain forecast of Semi-Arid Northeast Region of Brazil for the period of 1985-1996. Thermodynamic parameters in Tropical Atlântic and Pacific Oceans were used as input variables. The results have shown that qualitatively, in an annual scale, this technique was able to forecast at least one of the categories of the output variable (total February/May rain in the of Semi-Arid Northeast Region of Brazil. Quantitatively, the smallest errors have been observed for the years classified according to the output variable in the categories of Normal (N, Rainy (C, and Very Rainy (MC, with correlation coefficients ranging fron 0.8 to 0.85, depending on the defuzzification method used. This technique allows for the unification of all the climatic information

  14. Relações da rugosidade superficial do solo com o volume de chuva e com a estabilidade de agregados em água Relations of soil surface roughness with the rainfall volume and water aggregate stability

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    Ildegardis Bertol

    2006-06-01

    -se inversamente com o volume das chuvas naturais. O decaimento máximo da rugosidade ao acaso relacionou-se inversamente com o DMP e com o DMG dos agregados estruturais.Soil surface roughness is, among other factors, affected by soil tillage, cumulative rainfall and aggregate stability in relation to destructive water action. The soil surface roughness of a soil classified as a Haplumbrept was evaluated in an area where a water erosion experiment under natural rainfall has been carried out over the course of 15 years in the South of the Planalto Catarinense, Santa Catarina State, Brazil. The soil microrelief was characterized by the indices: roughness (RR, tortuosity (T and limiting elevation difference (LD and was measured in 2003 in a corn crop, and in 2004 in an oat crop (cumulative rainfall during the experimental periods was 229 and 350 mm, respectively. Moreover, water aggregate stability was evaluated and expressed by the mean weight diameter (DMP and mean geometric diameter (DMG of aggregates between the two crops, in 2004. The studied soil tillage system treatments were: plowing plus disking (PC, chisel plow plus disking (CM, and no-tillage (SD, both under corn and oat crops. One additional treatment used as reference consisted of bare soil tillage with plowing plus disking (SC. The surface roughness was evaluated five times under corn and four times under oat. The first evaluation was carried out immediately after soil tilling and the others every other week. The initial values of the RR, T, and LD indices were high and decreased with increasing rainfall on SC, PC AND CM treatments, while in the SD treatment the afore-mentioned indices were only high for oat and varied very little as the rainfall increased. The reduction in the random RR index was the highest in the BS treatment, while the lowest reduction occurred in the SD treatment. The values of all indices under study were reduced in comparison to that of the original microrelief condition, where the slope effects

  15. Distribuição de frequência e temporal de chuvas intensas =

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    Luciana Espíndula de Quadros

    2011-07-01

    Full Text Available A distribuição generalizada de valores extremos (GEV tem tido grandeaceitação para discrição dos eventos máximos naturais. Estudos sobre o assunto mostram que a distribuição GEV ajusta valores mais próximos à realidade quando há necessidade de extrapolação dos dados amostrais para grandes períodos de retornos e com o intuito de contribuir para o planejamento de atividades que são influenciadas pela intensidade de água precipitada foi ajustado um modelo de distribuição de probabilidade de chuva intensa por meio da GEV, utilizando momentos LH para estimar seus parâmetros e o teste estatístico proposto por Wang (1998 para verificação da qualidade dos ajustes desenvolvidos noambiente Matlab. Analisaram-se séries históricas de precipitação máximas para diferentes durações obtidas de pluviográfos no município de Cascavel, Estado do Paraná. Além disso, as referidas séries foram ajustadas pela distribuição Gumbel para efeito de comparação coma GEV. Este trabalho mostra que a distribuição Gumbel subestima a distribuição GEV para grandes períodos de retorno.The generalized extreme value distribution (GEV has had great acceptance for discretion of the maximum natural events. Previous studies show that GEV distribution fits values closer to realitywhen there is need for extrapolation of sampling data for longer periods of returns. In order to contribute to the planning of activities that are influenced by the intensity of precipitated water, we adjusted a model of probability distribution of heavy rain through GEV, using LH moments for estimating its parameters and statistical test proposed by Wang (1998 for checking the quality of the adjustments developed in the Matlab. We analyzed historicaltime series of maximum rainfall for different durations obtained from rain gauges in the city of Cascavel, Paraná State. Moreover, these series were fitted by Gumbel distribution for purposes of comparison with the GEV

  16. Mapeamento de chuvas intensas no estado de Minas Gerais Mapping of heavy rainfalls in the state of Minas Gerais

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    Carlos Rogério de Mello

    2013-02-01

    Full Text Available Estudos associados a chuvas extremas são constituídos de eventos de interesse prático para a gestão dos recursos naturais, como manejo de bacias hidrográficas e conservação dos solos e da água. A distribuição espacial desses eventos possibilita inferir sobre áreas onde sua ocorrência é acentuada e desprovida de informações técnicas. Os objetivos deste trabalho foram promover, a partir de dados pontuais de 177 estações meteorológicas e com a utilização de técnicas geoestatísticas, o mapeamento de chuvas intensas para o Estado de Minas Gerais e identificar as áreas mais vulneráveis no tocante à ocorrência dessas chuvas nesse Estado. Foi constatado que as maiores intensidades ocorrem nas regiões leste e noroeste de Minas Gerais, o que pode ser explicado pela maior influência da Zona de Convergência do Atlântico Sul, além de ocorrência de chuvas convectivas. Foi possível, também, constatar e mapear intensidades intermediárias nas regiões sul e central e os menores valores para as regiões norte e nordeste de Minas Gerais. Para maiores durações, verificou-se, para a região sul, ocorrência de altas intensidades, o que está associado à entrada com maior frequência de frentes frias, produzindo chuvas de longa duração.Studies of heavy rainfall are of practical interest for the conservation management of natural resources such as watersheds and soil and water. The spatial distribution of these natural rainfall events allows conclusions about regions where the occurrence of heavy rain is more frequent and to estimate their magnitude for locations without rainfall data sets. Thus, the purpose of this study was to map heavy rainfall data from 177 meteorological stations, using a geostatistical approach, for Minas Gerais, identifying the most vulnerable regions in terms of the occurrence of heavy rain. The highest values were estimated for the East and Northwest regions of the state, which can be explained by the

  17. Simulação do caminhamento da água da chuva e herbicidas em palhadas utilizadas em sistemas de plantio direto Simulation of rain wetting dynamics and herbicide movement in different straws used under no-tillage system

    Directory of Open Access Journals (Sweden)

    C.D.G. Maciel

    2005-09-01

    Full Text Available Um experimento foi conduzido no NuPAM/FCA/UNESP, Botucatu-SP, objetivando avaliar a dinâmica de retenção de água e o caminhamento de um traçante (simulando um herbicida em diferentes coberturas mortas. Os tratamentos foram constituídos pelo monitoramento do traçante FD&C-1 pulverizado sobre coberturas mortas de cevada, trigo, aveia-preta colhida, aveia-preta rolada, azevém, milheto e capim-braquiária, nas quantidades de 3.000, 6.000 e 9.000 kg ha-1, antes e após simulação de chuvas. As repetições constituíram-se de oito conjuntos de PVC + funil + béquer com palha, onde, através da chuva lixiviada pelas palhadas e do peso dos suportes de PVC, foram estimadas a retenção e transposição da água, assim como quantificado o traçante extraído, através de procedimentos espectrofotométricos. Os diferentes tipos de resíduos culturais mostraram-se similares quanto à retenção da água da chuva, ocorrendo uniformização entre os primeiros 7,5 e 15 mm de precipitação. A formação de "pontos secos" associados a "canais preferenciais de escorrimento" induziu menor capacidade de embebição e retenção da água das chuvas pelas palhadas. As máximas capacidades médias de retenção da chuva pelas coberturas foram de 1,22, 1,99 e 2,59 mm para 3.000, 6.000 e 9.000 kg de matéria seca ha-1, respectivamente. As precipitações iniciais entre 10 e 20 mm foram fundamentais para o molhamento uniforme das palhadas e carregamento do traçante até o solo, independentemente do tipo e da quantidade de palha. Esse comportamento indica ser viável a utilização de programas similares de controle de plantas daninhas para diferentes tipos e quantidades de palha em sistemas de plantio direto.An experiment was conducted at NuPAM/FCA/UNESP, Botucatu-SP, Brazil, to evaluate the dynamics of water retention and the path of a tracer (simulating a herbicide in different crop residues. The treatments were constituted by monitoring of the tracer FD

  18. Classicação Sinótica de Frentes Frias Associadas a Chuvas Extremas no Leste de Santa Catarina (SC

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    Gustavo C.J. Escobar

    Full Text Available Resumo O trabalho apresenta uma classificação sinótica de frentes frias sobre o leste do Estado de Santa Catarina (SC, com o propósito de identificar os principais padrões sinóticos associados com chuvas extremas na região do Vale do Itajaí. A metodologia utilizada foi a técnica de Análise de Componentes Principais aplicada à série de reanálises do Climate Forecast System Reanalysis (CFSR (NCEP para o período 1979-2010. Previamente, realiza-se uma climatologia de frentes frias sobre o leste de SC, cujos resultados mostram uma maior frequência de frentes frias associadas a chuvas extremas no Vale do Itajaí durante a primavera. Os resultados fornecem cinco padrões sinóticos principais que representam 83,4% dos casos de frentes frias com chuvas extremas no Vale do Itajaí. O padrão sinótico mais frequente mostra um intenso fluxo de quadrante sudeste sobre a região de estudo, determinado pela presença de um forte anticiclone pós-frontal observado sobre o sul da Província de Buenos Aires, cuja frente fria associada encontra-se no extremo nordeste catarinense. Por último, há dois padrões sinóticos típicos de verão relacionados com chuvas extremas no Vale do Itajaí; um relacionado com episódios de Zona de Convergência do Atlântico Sul (ZCAS e outro associado com a Baixa do Chaco (BCH.

  19. Effects of Salvianolic Acid-A on Proliferation of HSC%丹酚酸A抗肝细胞过氧化损伤对肝星状细胞增殖的影响

    Institute of Scientific and Technical Information of China (English)

    胡义扬; 王润平; 刘成海; 刘平

    2001-01-01

    Objective:The inhibiting action of Salvianolic Acid-A on proliferation of HSC was observed under the conditions of antiperoxide injury.Methods:HSC was stimulated by different concentration MDA.The proliferation of HSC was assayed by 3H[TdR] incorporation.At the same time the effects of Salvianolic Acid-A on the content of MDA in injured hepatocyte were observed.Results:Certain concentration MDA could promote the proliferation of HSC.The content of MDA was increased in injured hepatocyte. Salvianolic Acid-A could inhibit the promoting action of HSC proliferation induced by injured hepatocyte and reduce the content of MDA in injured hepatocyte.Conclusion:Salvianolic Acid-A can inhibit the proliferation of HSC by antiperoxide injury of hepatocyte.%目的:观察丹酚酸A(SA-A)抗肝细胞过氧化损伤时在抑制肝星状细胞(HSC)增殖中的作用。方法:以不同浓度的丙二醛(MDA)刺激HSC,通过氚标胸腺嘧啶(3H[TdR])掺入法,观察对HSC增殖作用,以及SA-A对损伤肝细胞MDA含量及促HSC增殖的影响。结果:一定浓度的MDA有促进HSC增殖的作用;损伤肝细胞MDA含量明显增加;SA-A可抑制损伤肝细胞对HSC的促增殖作用,并可降低损伤肝细胞MDA的含量。结论:SA-A可通过抗肝细胞过氧化损伤抑制HSC的增殖。

  20. ESCOAMENTO DA ÁGUA DA CHUVA PELO TRONCO DAS ÁRVORES EM UMA FLORESTA ESTACIONAL SEMIDECIDUAL

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    Alexandre Simões Lorenzon

    2015-06-01

    Full Text Available RESUMOEste trabalho foi desenvolvido na Estação de Pesquisas, Treinamento e Educação Ambiental Mata do Paraíso, situada no Município de Viçosa, na Zona da Mata de Minas Gerais, Brasil, e teve como objetivo avaliar o escoamento pelo tronco em um fragmento de Mata Atlântica, no período de agosto de 2009 a março de 2011. Para quantificar esse escoamento, foram demarcadas seis parcelas de 10 x 10 m, sendo em cada parcela adaptados coletores à base de poliuretano nos troncos das árvores com circunferência 15,0 cm. Um pluviômetro foi instalado em local aberto para quantificar a água diretamente da chuva. Além disso, realizou-se uma análise qualitativa dos indivíduos do escoamento pelo troco, avaliando a qualidade do fuste e da copa, posição no estrato da floresta e infestação de cipó. Em todo o período de análises, foram realizadas 75 medições. Nas parcelas de escoamento pelo tronco foram amostrados 126 indivíduos, distribuídos em 29 famílias e 59 espécies. A precipitação em aberto foi de 2.391,63 mm, e o escoamento pelo tronco somou 31,59 mm, ou 1,32% da precipitação em aberto. A espécie com maior escoamento pelo tronco foi a Euterpe edulis, com um volume médio de água escoado de 637,00 L. Das espécies com maior escoamento pelo tronco, 73,91% encontravam-se no estrato inferior da floresta, evidenciando que algumas espécies possuem algum tipo de adaptação morfológica para captação da água da chuva.

  1. Sensor de orvalho/chuva aplicado à operação de telescópios

    Science.gov (United States)

    Raffaelli, J. C.; Neres, N. L.; Strauss, C.

    2003-08-01

    Foi desenvolvida uma estação meteorológica para o telescópio robótico Obelix do Observatório Abrahão de Moraes que inclui sensores de temperatura e umidade, além de um inédito sensor de orvalho e chuva que comanda o fechamento automático da cúpula caso haja perigo de condensação. Este sensor é composto de uma malha de segmentos metálicos próximos e detecta o aumento da condutividade do ar que precede a condensação. Esse método é mais confiável que o critério de 100% de umidade, que pode causar falsos alarmes devido a imprecisão dos sensores de umidade em geral e por não considerar a influência dos ventos que dificultam a condensação. O trabalho apresenta o método de construção desse sensor e os testes de avaliação. Sugere-se portanto a inclusão desse sensor nas estações meteorológicas dos telescópios do país.

  2. Quantidade de chuva e lixiviação do herbicida metribuzin através de planta bioindicadora

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    Antonio C. da Silva Junior

    2015-06-01

    Full Text Available RESUMO Objetivou-se, neste trabalho, avaliar o potencial de lixiviação do herbicida metribuzin com precipitações pluviométricas naturais, em dois solos com texturas contrastantes, argiloso e médio arenoso, em condições de campo, através de planta bioindicadora. Colunas de PVC foram introduzidas nos dois solos. Manteve-se a integridade original do solo durante a coleta das amostras, que ocorreu após o acúmulo das precipitações em um intervalo estipulado ao ambiente entre 30-40, 60-80 e 100-120 mm de chuva. As colunas foram separadas com corte longitudinal para a semeadura da espécie bioindicadora (25 plantas. Após a semeadura avaliações de fitotoxicidade das plantas bioindicadoras foram realizadas aos 5, 7, 10 e 12 dias após a semeadura, através de uma escala de notas de 0 a 100%. A lixiviação do herbicida metribuzin foi dependente da precipitação recebida para os dois tipos de solo estudados. A eficácia da planta bioindicadora dependeu do tipo de solo e da precipitação. A metodologia de utilização de plantas bioindicadoras mostrou-se eficiente para avaliação da mobilidade de herbicida no perfil do solo.

  3. Efeitos de períodos de permanência de clomazone + hexazinona no solo e na palha de cana-de-açúcar antes da ocorrência de chuvas na eficácia de controle de plantas daninhas Effects of different periods of clomazone + hexazinona permanence in soil and sugarcane mulch before the occurrence of rain on weed control efficacy

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    C.A. Carbonari

    2010-01-01

    Full Text Available O presente trabalho teve por objetivo avaliar a eficácia da mistura formulada de clomazone e hexazinona aplicada sobre o solo e em associação com a palha de cana-de-açúcar, após diferentes períodos de permanência sem a ocorrência de chuvas. O experimento foi conduzido em vasos em casa de vegetação, no município de Botucatu-SP. Os vasos foram preenchidos com solo, e as sementes de plantas daninhas (Brachiaria decumbens, Ipomoea grandifolia, Ipomoea hederifolia e Euphorbia heterophylla foram semeadas superficialmente e, em seguida, cobertas ou não com palha de cana-de-açúcar, dependendo do tratamento utilizado. O delineamento experimental utilizado foi o inteiramente casualizado, com quatro repetições. Os tratamentos foram dispostos em um esquema fatorial 3 x 6, sendo os fatores seis períodos sem ocorrência de chuvas (0, 3, 7, 15, 30 e 60 dias e três posicionamentos do produto (sobre o solo sem palha, sobre e sob a palha de cana. Foram realizadas avaliações de controle aos 10, 21, 35 e 42 dias após a ocorrência da chuva. A mistura de clomazone + hexazinona promoveu excelentes resultados de controle para todas as espécies estudadas quando aplicada sobre, sob ou na ausência de palha de cana-de-açúcar. No entanto, observou-se tendência de redução nos níveis de controle para períodos superiores a 60 dias sem ocorrência de chuva.The objective of this work was to evaluate the efficacy of the formulated mixture clomazone and hexazinone applied in soil or combined with sugarcane mulch, after different periods of permanence without the occurrence of rain. The experiment was carried out in vases under greenhouse conditions in Botucatu, São Paulo, Brazil. The weeds Brachiaria decumbens, Ipomoea grandifolia, Ipomoea hederifolia and Euphorbia heterophylla were sown and covered or not with sugarcane mulch. The experiment was arranged in a complete randomized design with four repetitions. The treatments were displaced in a 3x6

  4. Postnatal maturation of gamma-aminobutyric acidA and B-mediated inhibition in the CA3 hippocampal region of the rat.

    Science.gov (United States)

    Gaiarsa, J L; McLean, H; Congar, P; Leinekugel, X; Khazipov, R; Tseeb, V; Ben-Ari, Y

    1995-03-01

    In the adult central nervous system, GABAergic synaptic inhibition is known to play a crucial role in preventing the spread of excitatory glutamatergic activity. This inhibition is achieved by a membrane hyperpolarization through the activation of postsynaptic gamma-aminobutyric acidA (GABAA) and GABAB receptors. In addition, GABA also depress transmitter release acting through presynaptic GABAB receptors. Despite the wealth of data regarding the role of GABA in regulating the degree of synchronous activity in the adult, little is known about GABA transmission during early stages of development. In the following we report that GABA mediates most of the excitatory drive at early stages of development in the hippocampal CA3 region. Activation of GABAA receptors induces a depolarization and excitation of immature CA3 pyramidal neurons and increases intracellular Ca2+ ([Ca2+]i)] during the first postnatal week of life. During the same developmental period, the postsynaptic GABAB-mediated inhibition is poorly developed. In contrast, the presynaptic GABAB-mediated inhibition is well developed at birth and plays a crucial role in modulating the postsynaptic activity by depressing transmitter release at early postnatal stages. We have also shown that GABA plays a trophic role in the neuritic outgrowth of cultured hippocampal neurons.

  5. Perda de água, solo e fósforo com aplicação de dejeto líquido bovino em latossolo sob plantio direto e com chuva simulada Water, soil and phosphorus loss after cattle slurry application to oxisol under no-tillage and simulated rainfall

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    Hélio Fumiaki Mori

    2009-02-01

    Full Text Available A região dos Campos Gerais do Paraná é importante produtora de leite em sistema confinado e, com isso, também geradora de dejeto líquido bovino. Os objetivos deste trabalho foram avaliar perdas de água, solo, P total, P solúvel e P particulado em chuva simulada, realizada imediatamente após a aplicação das doses de 0, 30, 60 e 90 m³ ha-1 de dejeto líquido bovino, em um Latossolo Vermelho-Amarelo manejado em plantio direto, e inferir os eventuais impactos na qualidade da água. A aplicação de dejeto aumentou a taxa de perda de água por escoamento superficial em mais de 10 vezes, em todos os intervalos de 15 min da chuva durante duas horas. O maior incremento na perda total de água ocorreu com as doses 0 e 30 m³ ha-1. A partir da dose de 60 m³ ha-1, houve tendência de estabilização da perda de água. A taxa de perda de solo nos primeiros 15 min de chuva também aumentou com a aplicação de dejeto, repetindo-se, embora não de forma significativa, até o final da chuva. O maior incremento na perda de solo também ocorreu com a aplicação das doses de 0 e 30 m³ ha-1, seguido por estabilização com as doses maiores. Parte do material sólido perdido veio do próprio dejeto. A aplicação de dejeto, mesmo na dose de 30 m³ ha-1, elevou a concentração de P total, solúvel e particulado no escoamento para valores acima dos níveis críticos relacionados com a eutrofização, especialmente nos primeiros 15 min de chuva. Por aumentar a taxa de escoamento de água e a concentração de P no escoamento, o dejeto também aumentou a perda absoluta das três formas de P, com tendência de estabilização a partir de 60 m³ ha-1. A causa do aumento substancial tanto das taxas como da quantidade absoluta de perda de água, solo e P por escoamento foi possivelmente o selamento superficial do solo promovido pelo próprio dejeto e pelo fato de a chuva ter ocorrido imediatamente após a aplicação deste.Campos Gerais in the State of Paran

  6. Índices de erosividade da chuva, perdas de solo e fator erodibilidade para dois solos da região dos cerrados - primeira aproximação

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    J.J.G.S.M. Marques

    1997-09-01

    Full Text Available Os objetivos deste trabalho foram: testar a adequação de diferentes índices de erosividade das chuvas, comparar duas equações propostas para cálculo da energia cinética das chuvas e estimar o fator K (erodibilidade da equação universal de perdas de solo (EUPS para um latossolo vermelho-escuro (LE álico muito argiloso e um podzólico vermelho-amarelo (PV álico muito argiloso da região de Sete Lagoas (MG. Não houve diferença significativa entre as duas equações testadas para cálculo da energia cinética das chuvas. O índice EI30 mostrou ser um bom estimador da erosividade da chuva e pode continuar sendo utilizado como fator R (erosividade da EUPS para a região estudada. Os valores do fator K, para o LE e o PV da região de Sete Lagoas, foram, respectivamente, 0,002 e 0,033 t h (MJ mm-1.

  7. Krigagem e inverso do quadrado da distância para interpolação dos parâmetros da equação de chuvas intensas

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    Mello C. R.

    2003-01-01

    Full Text Available Em projetos de obras hidráulicas, é necessária a estimativa da chuva intensa adequada à realidade técnico-financeira dos projetos, para posterior cálculo de vazões máximas. O uso da equação de chuvas intensas é a forma mais usual para estimativa da chuva de projeto. No entanto, há dificuldade em obtê-la para locais desprovidos de dados pluviométricos, o que pode ser superado mediante técnicas computacionais para a espacialização dos seus parâmetros. Para isto, pode-se trabalhar com procedimentos estatísticos para interpolação dos parâmetros com base em estações meteorológicas vizinhas ao local. Objetivou-se, neste trabalho, comparar os dois procedimentos estatísticos mais exatos, conforme já constatado em outras aplicações físicas, que são a krigagem (interpolador geoestatístico e o inverso do quadrado da distância, para interpolação dos parâmetros da equação de chuvas intensas. Utilizaram-se 140 estações meteorológicas do estado de São Paulo, as quais dispõem da respectiva equação de chuvas intensas estimada com base em dados pluviométricos, consideradas como ideais. Destas, 126 foram utilizadas para estudo da dependência espacial dos parâmetros e 14 para comparação de erros nas estimativas da chuva intensa. Constatou-se que ambos os métodos apresentaram boa precisão, mas a krigagem produziu menores erros médios para 11 estações, verificando-se melhorias consideráveis em especial para tempos de retorno e tempos de duração da precipitação usuais em projetos em pequenas bacias hidrográficas, podendo-se sugerir este método como o mais adequado.

  8. Chemical and Nutritional Composition of Copao Fruit (Eulychnia acida Phil. Unswe Thee Environmental Conditions in the Coquimbo Region Características Químicas y Composición Nutricional de los Frutos de Copao (Eulychnia acida Phil. Bajo tres Condiciones Ambientales de la Región de Coquimbo

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    Lilia Masson S

    2011-12-01

    Full Text Available Copao (Eulychnia acida Phil. is an endemic arborescent cactus restricted mainly to the semi-arid Coquimbo Region (29°54'28" S, 71°15'15" W, Chile. The area of distribution is from sea level to 1200 m.a.s.l. The edible fruit called rumpa is generally round, with green or pink peel and small scales on its surface, showing wide variability in size and weight. The aim of this work was to characterize the rumpa harvested in January 2009 and 2010 in three sectors of Coquimbo Region to determine chemical and nutritional composition in three fractions: pulp with seeds, juice, and peel. The research showed that this fruit is a good natural source of mainly soluble dietary fiber, which has a jellied texture and is present in the three fractions analyzed: 2% for juice, 3% for pulp with seeds, and approximately 5% for peel, making it potentially a good source of hydrocolloids for the food industry. The fruit is also a good source of vitamin C; around 55 mg 100 g-1 in peel, and 30 mg 100 g-1 in pulp with seeds and juice, values considered high compared to 18 mg 100 g-1 for prickly pear (Opuntiaficus-indica [L.] Mill. The main minerals were: K, Mg, Ca, and P. Total polyphenols and betalain pigments were also determined in the pulp with seeds and pink peel fractions, respectively. The nutritional characteristics, together with its high water content of around 96%, make rumpa a promising raw material for agro-industrial development of natural juices or isotonic drinks. This characterization helps in the recovery of an endemic native species by reducing potential threats to destroy wild populations of E. acid, especially near agricultural areas, and by promoting habitat conservation of the species in the region.El copao (Eulychnia acida Phil. es un cactus arborescente endémico restringido principalmente a la región semi árida de Coquimbo (29°54'28" S, 71°15'15" O, Chile. El área de distribución comprende desde el nivel del mar hasta los 1200 m de

  9. Influência da crosta superficial nas taxas de infiltração de água medidas com simulador de chuva e anéis concêntricos

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    R. Levien

    2000-09-01

    Full Text Available A taxa de infiltração de água no solo, conjuntamente com a taxa de chuva, determina a taxa de enxurrada, constituindo medida importante para a previsão de erosão e estudos de conservação do solo. Pode-se medir a taxa de infiltração por meio de um infiltrômetro de cilindros concêntricos (CC ou de um simulador de chuva (SC. A utilização do CC requer menos trabalho do que o SC, mas os resultados obtidos com o CC comumente estão em desacordo com as taxas de infiltração que ocorrem em situações de chuva natural, possivelmente por causa da formação de uma crosta superficial sob chuva. A formação dessa crosta procede tanto de fatores independentes do manejo do solo, como a intensidade da chuva e a textura do solo, quanto de fatores dependentes do manejo, principalmente a resistência ao cisalhamento e a cobertura vegetal. Em situações favoráveis à ocorrência de formação de crosta, espera-se que taxas de infiltração medidas com o CC superestimem as taxas reais durante uma chuva. Para verificar a correlação entre o manejo do solo e a razão das taxas de infiltração obtidas com CC e SC, essas taxas foram medidas por ambos os métodos em dois Podzólicos (Ultissolos da região sul do Brasil. Os tratamentos diferiram com a cobertura vegetal e com a existência de crosta superficial. Medidas da taxa de infiltração com SC foram realizadas com um simulador de chuva com bicos aspersores Veejet 80100, em parcelas de 3,5 x 11,0 m, gerando chuva de intensidade de 64,2 mm h-1, durante 100 a 150 minutos. As parcelas foram delimitadas com chapas de metal e a enxurrada foi coletada no lado inferior por três segundos a cada três minutos. O CC consistiu de dois cilindros (diâmetros de 0,30 e 0,60 m, cravados no solo até 0,10 m pouco antes da determinação com o SC. A área dentro dos anéis foi inundada e as taxas de infiltração foram registradas dentro do anel interior, em intervalos de tempo regulares, com três repeti

  10. Análise estatística de chuvas intensas na bacia hidrográfica do Rio Paraíba Statistical analysis of rains intense in the Paraíba River bas

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    Lincoln Eloi de Araújo

    2008-06-01

    Full Text Available Esta pesquisa foi realizada na bacia hidrográfica do rio Paraíba com a finalidade de identificar a variação espacial e temporal das chuvas intensas de 1, 2, 3, 4 e 5 dias. Os resultados obtidos mostraram concentração de valores máximos da variação espacial das chuvas intensas no leste da sub-bacia do Baixo Paraíba, Sul da sub-bacia do rio Taperoá e centro-norte da sub-bacia do Alto Paraíba. A análise da variação temporal revelou que os meses de maiores ocorrências de chuvas intensas na bacia em estudo são: janeiro, fevereiro, março e abril. Em seguida, as chuvas intensas foram ajustadas à função distribuição de probabilidade de Gumbel. O teste Kolmogorov-Smirnov foi utilizado para verificar a qualidade desses ajustes.This research was accomplished in the Paraíba river basin for to identify the space and temporal variability of the rains intense of 1, 2, 3, 4 and 5 days. The obtained results showed concentration of maximum values of the space variation of the rains intense in the east of the subbasin of Low Paraíba, south of the subbasin of the river Taperoá and center-north of the subbasin of High Paraíba. The analysis of the temporal variation did reveal that the months of larger occurrences of rains intense in the basin in study are: January, February, March and April. Soon after, the rains intense they were adjusted to the probability distribution function of Gumbel. The test Kolmogorov-Smirnov was used to verify the quality of those fittings.

  11. Perdas de solo e água num Latossolo Vermelho aluminoférrico submetido a diferentes sistemas de preparo e cultivo sob chuva natural Water erosion caused by natural rainfall in a clayey Hapludox with different cropland tillage systems

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    J. F. Beutler

    2003-06-01

    Full Text Available A chuva e a enxurrada, combinadas, são os agentes ativos na erosão hídrica, a qual também é influenciada pela cobertura, rugosidade, tipo de cultura e sistema de preparo do solo. Os preparos de solo conservacionistas reduzem a erosão hídrica em relação aos preparos convencionais, visto que são menos intensos e mantêm o solo coberto por maior período de tempo e, às vezes, proporcionam aumento da rugosidade na superfície do solo. Para avaliar as perdas de solo e água causadas pela erosão hídrica sob chuva natural, realizou-se um experimento em Chapecó (SC, num Latossolo Vermelho aluminoférrico, com declividade média de 0,09 m m-1, entre 1994 e 1999. Estudaram-se os tratamentos: preparo convencional, cultivo mínimo, rotação de preparos e semeadura direta, executados no sentido paralelo ao declive, com duas repetições, com algumas combinações de rotação de culturas no inverno e no verão. O tratamento-testemunha constou de preparo de solo convencional, sem cultivo (parcela-padrão da Equação Universal de Perda de Solo - EUPS. A semeadura direta com rotação de culturas reduziu as perdas de solo em 45 % em relação ao preparo de solo convencional no verão e semeadura direta no inverno, com rotação de culturas e, em relação ao preparo de solo convencional sem cultura, esta redução foi de 99 %. Nos preparos de solo conservacionistas, as perdas de solo foram reduzidas em 80 % em relação aos preparos de solo convencionais, na média dos tratamentos que envolveram culturas e dos anos de cultivo. Nos tratamentos de semeadura direta, as perdas de solo foram duas vezes maiores na primavera/verão do que no outono/inverno, enquanto, nos demais tratamentos, essas perdas foram 3,3 vezes maiores no outono/inverno, na média dos tratamentos e dos anos de cultivo. As perdas de água foram pequenas e se comportaram de maneira semelhante às perdas de solo, diferindo quanto à magnitude.Rainfall and runoff together are the

  12. Erosão hídrica em um Nitossolo Háplico submetido a diferentes sistemas de manejo sob chuva simulada. I - Perdas de solo e água Water erosion on an Hapludox submitted to different soil managements under simulated rainfall. I - Soil and water losses

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    D. Leite

    2004-12-01

    Full Text Available O manejo do solo influencia a cobertura e a rugosidade na superfície, constituindo-se no principal fator que afeta a erosão hídrica. Utilizando um simulador de chuvas de braços rotativos, foram aplicados, no campo, três testes de chuva simulada no cultivo do milho e três no do feijão, com intensidade constante de 64 mm h-1 e energia cinética de 0,2083 MJ ha-1 mm-1 , no Planalto Sul Catarinense, entre março de 2001 e abril de 2003, para avaliar as perdas de água e solo nos seguintes tratamentos de manejo do solo, em duas repetições: solo sem cultivo com uma aração + duas gradagens (SSC; cultivos de milho e feijão com uma aração + duas gradagens sobre resíduos dessecados (PCO; cultivos de milho e feijão em semeadura direta sobre resíduos dessecados em solo previamente preparado (SDI; cultivos de milho e feijão em semeadura direta sobre resíduos dessecados em solo nunca preparado (SDD; cultivos de milho e feijão em semeadura direta sobre resíduos queimados em solo nunca preparado (SDQ, e solo sem cultivo com campo nativo melhorado (CNM. O experimento foi realizado em um Nitossolo Háplico alumínico argiloso, com inclinação média do terreno de 0,165 m m-1. As perdas de solo foram fortemente influenciadas pelo sistema de manejo do solo, enquanto as perdas de água sofreram efeito apenas moderado. A SDI reduziu as perdas de solo 96 % em relação ao PCO, enquanto as perdas de água que equivaleram a 22 % do volume das chuvas aplicadas no PCO foram reduzidas para 7 % do referido volume na SDI, na média dos cultivos. A queima dos resíduos culturais aumentou as perdas de solo em 21 vezes em relação à ausência de queima, enquanto as perdas de água que eqüivaleram a 22,5 % do volume das chuvas aplicadas na área não queimada aumentaram para 26,5 % do referido volume com a queima, na média dos cultivos. As perdas de solo relacionaram-se exponencialmente com a percentagem de cobertura da superfície pelos res

  13. Spotlight: Brazil.

    Science.gov (United States)

    Carter, M

    1996-08-01

    Brazil is South America's largest country and home to nearly half of the continent's people. Despite solid economic growth, Brazil has one of the world's widest income disparities. In the early 1990s, nearly 40% of urban and 66% of rural Brazilians lived in poverty. The streets of Brazil's cities are home to a large population of street children. Although it is difficult to estimate, 10 million children and youths may be either homeless or making a meager living off of the streets. Street children may be linked to prostitution and drugs and be the targets or perpetrators of violence. Child labor is an issue in Brazil. Today an estimated 30% of rural children and 9% of urban children ages 10-13 work in the formal economy. In some rural areas, 60% of workers are ages 5-17. Child labor also contributes to Brazil's relatively low educational attainment levels. UNICEF estimates that around 1990 only 1/3 of all Brazilian children continued on to secondary school, compared to 74% and 47%, respectively, for the Latin America and Caribbean regions. Immunization rates among Brazil's children are rising but still lag slightly behind regional averages. The mortality rate for children under age 5 decreased dramatically from 181 deaths for every 1000 live births in 1960 to 61/1000 in 1994. During the same time period, the average number of children born to a woman during her lifetime dropped from 6.2 to 2.8. This fertility decline is related in part to increased access to and acceptance of family planning. Contraceptive prevalence, including traditional and modern methods, is around 66%, with female sterilization and the pill being the most popular methods. Brazil's abortion rates are high, despite laws limiting access to abortion services. One estimate suggests that about 30% of all pregnancies are terminated through abortion each year.

  14. Análise da frequência e da intensidade das chuvas em Ponta Grossa, Estado do Paraná, no período entre 1954 E 2001 - doi: 10.4025/actascitechnol.v33i1.6957

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    Maysa de Lima Leite

    2011-03-01

    Full Text Available Este trabalho teve por objetivo realizar uma avaliação da frequência e da intensidade da precipitação pluvial em Ponta Grossa, Estado do Paraná, no período de 1954 a 2001, utilizando técnicas estatísticas de análise exploratória de dados com o auxílio dos softwares Microsoft Office Excel e Microcal Origin. A média dos totais anuais de precipitação para a série analisada foi de 1.546,2 mm, revelando tendência a aumentar com o passar dos anos. O mês com maior total médio de precipitação foi janeiro com o mês de agosto sendo o de menor total médio. Para todos os meses do ano foi observada assimetria positiva na distribuição de frequência dos dados, e nos meses mais secos essa tendência se mostrou mais acentuada. Em relação à intensidade de precipitação acumulada diariamente, os totais foram classificados como chuvisco, chuva fraca, chuva moderada, chuva forte e chuva extrema. O intervalo de precipitação predominante para a maioria dos meses foi o de chuva fraca, entre 2,5 e 10,0 mm.

  15. Erodibilidade, fatores cobertura e manejo e práticas conservacionistas em argissolo vermelho-amarelo, sob condições de chuva natural

    Directory of Open Access Journals (Sweden)

    Eliete Nazaré Eduardo

    2013-06-01

    Full Text Available Os modelos de predição de perda de solo têm se tornado importantes ferramentas no planejamento conservacionista, sendo, para tanto, fundamental a estimativa local dos parâmetros que influenciam o processo erosivo. O objetivo deste trabalho foi determinar a erodibilidade (fator K e os fatores manejo e cobertura (fator C e práticas conservacionistas de suporte (fator P da Equação Universal da Perda de Solo (USLE, em um Argissolo Vermelho-Amarelo. Foram avaliadas as perdas de solo (PS ocorridas em parcelas-padrão de Wischmeier, no período de 2006 a 2011, com seus respectivos índices de erosividade (EI30. Valores de erodibilidade foram calculados pelo quociente entre PS e EI30 das chuvas anuais (Ka e total no período (Kt e pelo coeficiente angular gerado pela análise de regressão linear entre esses mesmos parâmetros (Kci e Kct. Os fatores C e P foram estimados para a cultura do milho, durante três anos de cultivo em nível (MN. Os valores de Kt e Kct obtidos foram de 0,0090 e 0,0106 Mg ha h ha-1 MJ-1 mm-1, respectivamente. Os valores médios calculados para os fatores C e P são de 0,0070 Mg ha Mg-1 ha-1 e de 0,45, respectivamente, indicando redução de 55 % na perda de solo do MN, em relação ao MMA. Os valores dos fatores K, C e P encontrados podem ser usados como primeira aproximação para estudos de manejo e conservação do solo e da água na região.

  16. Plant growth regulator losses in cotton as affected by adjuvants and rain Perdas de reguladores de crescimento do algodoeiro em função de adjuvante e de chuva simulada

    Directory of Open Access Journals (Sweden)

    Fábio Rafael Echer

    2012-12-01

    Full Text Available Most of Brazilian cotton is produced in regions where annual rainfall exceeds 1,500mm, hence plant growth regulators (PGR may be washed from the leaves before being absorbed. The objective of this research was to evaluate mepiquat chloride and chlormequat chloride washing from cotton leaves by rains occurring at different moments post spraying. The experiment was conducted in a greenhouse. Both PGR were sprayed to cotton at pin-head square at 15g ha-1 a.i. with and without a silicon-based adjuvant, and simulated rains were applied at 0, 0.75, 1.5, 3.0, 6.0, 12.0 and 24 hours after spraying, plus a control without rainfall. Addition of silicon adjuvant increased PGR uptake. Rainfall occurring up to 24 hours after spraying resulted in some PGR loss from cotton leaves, mainly in the absence of the adjuvant. The decreased uptake implies that in order to achieve the desired level of growth reduction, at least a fraction of the original PGR rate should be reapplied.Nas maiores regiões algodoeiras no Brasil, chove mais de 1.500mm anuais, existindo risco de ocorrer lavagem de reguladores de crescimento aplicados às folhas do algodoeiro, antes que sejam absorvidos. O objetivo deste trabalho foi avaliar a lavagem dos reguladores de crescimento cloreto de mepiquat e cloreto de chlormequat de folhas de algodoeiro por chuva, ocorrendo em diferentes momentos após a aplicação. O trabalho foi realizado em casa de vegetação. Ambos os reguladores foram aplicados no aparecimento do primeiro botão floral, na dose de 15g ha-1 de i.a. com e sem adjuvante siliconado, e chuva simulada foi aplicada aos 0, 0,75; 1,5; 3,0; 6,0; 12,0 e 24 horas após a aplicação dos reguladores, mais um tratamento sem chuva. A adição de adjuvante siliconado melhorou a absorção dos produtos. A ocorrência de chuva até mesmo 24 horas após a aplicação dos reguladores pode lavar parte dos produtos das plantas de algodoeiro, com maior intensidade para o tratamento sem

  17. Análise da chuva de sementes de uma área reflorestada do corredor de biodiversidade Santa Maria, ParanáSeed rain analysis of a reforested area in Santa Maria biodiversity corridor, Paraná

    OpenAIRE

    Gonçalves Toscan, Maria Angélica; Universidade Estadual do Oeste do Paraná; Temponi, Lívia Godinho; UNIOESTE; Leimig, Roberto de Albuquerque; UNIAMÉRICA; Fragoso, Rosimeri de Oliveira; UNIOESTE

    2014-01-01

    O corredor de biodiversidade Santa Maria, formado por remanescentes de Floresta Estacional Semidecidual, matas ciliares e uma faixa reflorestada em 2003, visa restaurar a conectividade entre o parque Nacional do Iguaçu e a faixa de proteção do reservatório de Itaipu. Objetivou-se avaliar a dinâmica da chuva de sementes da faixa reflorestada presente no corredor, conhecida como faixa seca, por meio dos parâmetros de diversidade, categoria sucessional, síndrome de dispersão e forma de vida das ...

  18. Perdas de fósforo e potássio por erosão hídrica em um inceptisol sob chuva natural Phosphorus and potassium losses by water erosion in an inceptisol under natural rainfall

    Directory of Open Access Journals (Sweden)

    I. Bertol

    2004-06-01

    Full Text Available Sistemas inadequados de manejo do solo favorecem a erosão hídrica, perdas de nutrientes e poluição das águas superficiais, acelerando a degradação ambiental. As perdas de P e K por erosão hídrica foram avaliadas entre 1999 e 2001, em um Cambissolo Húmico alumínico léptico com 0,102 m m-1 de declividade, em Lages (SC, sob condições de chuva natural, em diferentes sistemas de manejo do solo. Os tratamentos de preparo do solo foram: semeadura direta em seis anos (SDI6, semeadura direta em nove anos (SDI9, escarificação + gradagem em nove anos (E + G9 e aração + duas gradagens em nove anos (A + 2G9, cada um com duas parcelas experimentais, sendo uma parcela submetida à rotação das culturas de feijão, ervilhaca, milho e aveia e a outra, à sucessão de soja, trigo, soja e trigo, além de um tratamento-testemunha, constituído por aração + duas gradagens sem cultivo, em nove anos (SSC9. O P e o K foram determinados tanto na água quanto nos sedimentos da enxurrada. As concentrações dos dois elementos foram maiores nos sedimentos do que na água da enxurrada. Tanto na água quanto nos sedimentos da enxurrada, os preparos de solo conservacionistas proporcionaram maiores concentrações de P e K do que os preparos de solo convencionais. As perdas totais de K foram maiores na água do que nos sedimentos da enxurrada, com exceção do manejo SSC9. Com relação às perdas de P, apenas nos manejos SDI6 e SDI9 elas foram maiores na água do que nos sedimentos. No caso da água da enxurrada, as perdas totais de P foram maiores nos manejos SDI6 e SDI9, enquanto as de K variaram com os preparos conservacionistas e convencionais, sem apresentarem tendência clara. No caso do sedimento da enxurrada, as perdas totais de K foram menores nos preparos conservacionistas, mas as de P foram menores apenas nos manejos SDI6 e SDI9.Inadequate soil management systems can lead to water erosion, nutrient losses and superficial water pollution

  19. Time evaluation of discharges of suspension solids in the treated acid waters from the Osamu Utsumi - INB - Brazil; Avaliacao temporal das descargas de solidos em suspensao nas aguas acidas tratadas da mina Osamu Utsumi/INB

    Energy Technology Data Exchange (ETDEWEB)

    Maculan, Gabriella Giarola [Universidade Federal de Alfenas (UNIFAL), Pocos de caldas, MG (Brazil); Alberti, Heber Luiz Caponi, E-mail: heber@cnen.gov.br [Comissao Nacional de Energia Nuclear (LAPOC/CNEN), Pocos de Caldas, MG (Brazil). Laboratorio de Pocos de Caldas

    2011-07-01

    The present work presents only the flow and mass variations of particles on the the treated water at the points of interface with the environment. The region presents two very well established stations (dry and rainy), and the generated flows also presented oscillations as function of the hydrological year. The full knowledge of the hydrological fluxes involved in the Mine Acid Draining generation is essential for the elaboration of solutions aiming to minimize the environmental and costs impacts associated to the environmental passive generated by uranium mining

  20. Influência da chuva na eficiência de diquat no controle de Salvinia auriculata, Pistia stratiotes e Eichhornia crassipes Influence of rainfall on diquat efficiency in controlling Salvinia auriculata, Pistia stratiotes and Eichhornia crassipes

    Directory of Open Access Journals (Sweden)

    G.S.F Souza

    2011-12-01

    Full Text Available O objetivo deste estudo foi avaliar a influência da ocorrência de chuva em diferentes períodos de tempo após a aplicação do herbicida diquat, em sua eficiência de controle sobre plantas de Salvinia auriculata, Pistia stratiotes e Eichhornia crassipes. Foram estudadas chuvas de 10 mm, aplicadas durante 5min, em diferentes períodos de tempo (0h, 0,25h, 0,5h, 1h, 2h, 4h, 6h, 12h e não simulação de chuva após a aplicação de diquat, na formulação Reward, a 600 g i.a. ha-1 (2,5 L p.c. ha-1. O delineamento experimental utilizado foi o inteiramente casualizado, com quatro repetições. As plantas foram avaliadas visualmente aos 3, 5, 7 e 12 dias após a aplicação (DAA, sendo os resultados submetidos à análise de variância pelo teste F, e as médias dos tratamentos, comparadas pelo teste de Tukey (pThe aim of this study was to evaluate the influence of rainfall events at different time periods after application of diquat on the efficiency of this herbicide in controlling Salvinia auriculata, Pistia stratiotes and Eichhornia crassipes. Simulation of 10 mm rainfall applied during 5 min was studied at different time periods (0h, 0.25h, 0.5h, 1h, 2h, 4h, 6h, 12h and no rain simulation after application of diquat in Reward formulation, 600 g a.i. ha-1 (2.5Lcp ha-1. The experiment was arranged in a completely randomized design with four replications. Plants were evaluated at 3, 5, 7, and 12 days after application (DAA, and the results submitted to analysis of variance by the F test and the treatment means compared by the Tukey test (p < 0.05. Diquat provided excellent control of all the species studied, regardless of the time period for rain occurrence after application, even when immediately after application.

  1. Ação do enxofre em chuva ácida simulada sobre parâmetros morfofisiológicos de Phaseolus vulgaris L. (Fabaceae = Sulfur effect by simulated acid rain on morphophysiological parameters of the bean plant

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    Bruna Borba Dias

    2010-07-01

    Full Text Available O presente trabalho teve o objetivo de analisar os efeitos do enxofre e da chuva ácida simulada sobre a estrutura foliar do feijoeiro (Phaseolus vulgaris L, nos aspectos morfoanatômicos, teores de clorofila a, b, total e feofitina. As plantas-controle sofreram simulações de chuva com pH 6,0 e as plantas-teste sofreram simulação de chuva ácida com pH 3,0. As concentrações de clorofila a, b e total diminuíram no estádio de floração (R6. Já, no estádio R7, onde surgem as primeiras vagens, os teores aumentaram, indicando possível resistência e/ou adaptação dos espécimes às simulações ácidas. O tratamento ácido afetou a concentração de clorofila que foi degradada por processos oxidativos sem a sua conversão em feofitina. Também se observou diminuição na frequência de tricomas tectores e glandulares, assim como de estômatos. As injúrias visualizadas foram classificadas como de caráter leve, provavelmente pela existência de anexos epidérmicos para proteção foliar e peciolar.The goal of this work was to evaluate the effects of sulfur and simulated acid rain on the leaf of Phaseolus vulgaris. Acid rain (pH 3.0 and an aqueous solution (Ph 6.0 were performed on test and control plants, respectively. A decrease in chlorophyll a, chlorophyll b and total chlorophyll concentrations was observed in theflowering stage (R6. However, increased rates were determined in the maturation stage (R7, which can suggest a resistance and/or adjustment of the plants to the acid simulation conditions. The acid treatment achieved chlorophyll degradation by oxidative processes without conversion to pheophytin. A reduction was also seen in the number of glandular and non-glandular trichomes and stomata on the test plants. Moreover, only small injuries were verified on the blade and peciolar areas of the tested individuals of P. vulgaris, probablydue to the presence of the reported epidermal structures.

  2. Spatial modeling of dengue and socio-environmental indicators in the city of Rio de Janeiro, Brazil Modelagem espacial da dengue e variáveis socioambientais no Município do Rio de Janeiro, Brasil

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    Tatiana Rodrigues de Araujo Teixeira

    2011-03-01

    Full Text Available This study analyzed the spatial distribution of dengue in Rio de Janeiro, Brazil, in 2006, and associations between the incidence per 100,000 inhabitants and socio-environmental variables. The study analyzed reported dengue cases among the city's inhabitants, rainfall, Breteau index (for Aedes aegypti and Aedes albopictus, Gini index, and social development index. We conducted mapping and used the global Moran index to measure the indicators' spatial autocorrelation, which was positive for all variables. The generalized linear model showed a direct association between dengue incidence and rainfall, one-month rainfall time lag, Gini index, and Breteau index for A. albopictus. The conditional autoregressive model (CAR showed a direct association with rainfall for four months of the year, rain time lag in July, and Gini index in February. The results demonstrate the importance of socio-environmental variables in the dynamics of dengue transmission and the relevance for the development of dengue control strategies.Analisaram-se a distribuição espacial da dengue na cidade do Rio de Janeiro, Brasil, em 2006, e associações entre sua incidência por 100 mil habitantes e variáveis socioambientais. Consideraram-se os casos notificados de residentes no município, o índice pluviométrico, o índice de Breteau (para Aedes aegypti e Aedes albopictus, o índice de Gini e o índice de desenvolvimento social. Realizou-se o mapeamento e mensurou-se a autocorrelação espacial dos indicadores pelo índice global de Moran, sendo essa positiva para todas as variáveis. O modelo linear generalizado evidenciou associação direta entre a incidência e chuva; time-lag de um mês para chuva; índice de Gini e índice de Breteau para Aedes albopictus. Através do modelo espacial CAR (conditional autoregressive, encontrou-se associação direta com chuva em quatro meses do ano; time-lag de chuva em julho e índice de Gini em fevereiro. Esses resultados evidenciam a

  3. Frentes e frontogênese no verão: aspectos geométricos, dinâmicos e impactos sobre as chuvas nos subtrópicos da América do Sul

    OpenAIRE

    Josefina Moraes Arraut

    2007-01-01

    Este trabalho apresenta três estudos relacionados às características e causas das chuvas nos subtrópicos da América do Sul (AS) e do padrão continental de transporte de umidade no verão. O primeiro estudo tem um ponto de vista climatológico. Revela que, pela extensão da costa norte da AS até a região norte do Brasil, ingressa umidade vinda principalmente do Atlântico tropical norte. Por outro lado, a maior parte da umidade que deixa aquela região oceanica dirige-se ao interior da AS, entrando...

  4. Redistribuição das chuvas pelas copas de um povoamento de seringueira, José Bonifácio, SP. Rainwater redistribution under a rubber tree stand in the José Bonifacio county, SP.

    Directory of Open Access Journals (Sweden)

    Valdemir Antonio RODRIGUES

    2009-06-01

    Full Text Available A presente pesquisa foi desenvolvida emum povoamento de seringueira, clone RRIM 600,com 15 anos de idade, município de JoséBonifácio, SP. A pesquisa avaliou a redistribuiçãodas chuvas no período de agosto de 1996 a julhode 1997 (ano hídrico 1996/97, por meio dequantificação das precipitações pluvial total,interna e efetiva; do escoamento pelo tronco; eestimativa da interceptação das chuvas pelas copasdo seringal. Foram instalados pluviômetros a céuaberto e sob o dossel das árvores e, nos troncos dasárvores, coletores de água. A precipitação médiaanual foi de 1.514,5 mm, a precipitação interna foide 1.065,7 mm e o escoamento pelo tronco, de107,7 mm. A interceptação das chuvas pelas copase a precipitação efetiva resultaram em 341,1 e1.173,4 mm, respectivamente; correspondendo a22,5% e 77,5% do total da precipitação no seringal.A proporção de água que chega ao solo através doescoamento pelo tronco na seringueira foi superioraos obtidos em estudos similares realizados naregião Sudeste do Brasil. Os menores e maioresvalores percentuais de interceptação ocorreram noperíodo de estiagem, enquanto no período chuvosoos valores foram intermediários. Os valores mínimosocorreram durante os meses do período deestiagem, durante os quais as árvores estãodesfolhadas, enquanto os maiores valores ocorreramlogo a seguir, quando as chuvas que ainda têmcaracterísticas do período de estiagem ocorreramsobre as árvores com a folhagem recomposta.This research was developed in a 15years old rubber-tree plantation (RRIM 600,located in the municipality of José Bonifácio,São Paulo State. The reasearch evaluate the rainredistribution between August 1996 and July 1997(water year 1996/1997. It was estimated the grossand net precipitation, the throughfall, the stemflowand the crown interception loss. Non-recordingrain gauges were installed at an open area andunder the rubber tree canopy. Stemflow collectorswere installed at the

  5. Precipitação efetiva e interceptação da chuva em um fragmento florestal com diferentes estágios de regeneração

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    Alexandre Simões Lorenzon

    2013-08-01

    Full Text Available Este trabalho teve por objetivo avaliar a precipitação efetiva e a interceptação da chuva em um fragmento de Floresta Estacional Semidecidual em estágio inicial e avançado de regeneração no Município de Viçosa, Minas Gerais, no período de agosto de 2009 a fevereiro de 2011. Foram demarcadas seis parcelas, três na área de regeneração inicial e três na área de regeneração avançada. Para quantificar a precipitação interna e o escoamento pelo tronco, foram instalados 25 pluviômetros em cada parcela e coletores nas árvores com circunferência 15 cm. Além disso, um pluviômetro foi instalado em local aberto para quantificar a precipitação em aberto, que no período estudado foi igual a 1.509,96 mm. Em média, 85,08 e 74,93% da precipitação em aberto, respectivamente, no estágio inicial e avançado de regeneração, chegam ao solo via precipitação efetiva. A interceptação pelo dossel florestal foi maior na área avançada do que na área inicial de regeneração, correspondendo, respectivamente, a 25,07 e 14,92% da precipitação em aberto, o que sugere que áreas mais densamente povoadas interceptam maior quantidade de chuva e, consequentemente, geram menor precipitação efetiva.

  6. Perdas de carbono e nitrogênio com aplicação de dejeto líquido bovino em latossolo muito argiloso sob plantio direto e chuva natural

    Directory of Open Access Journals (Sweden)

    Adriana Timofiecsyk

    2012-12-01

    Full Text Available O transporte de poluentes via escoamento superficial em áreas agrícolas, principalmente na forma solúvel, é considerado um problema ambiental, mesmo em sistemas conservacionistas de preparo do solo. O objetivo deste trabalho foi avaliar as perdas de carbono orgânico e nitrogênio no escoamento superficial, com a aplicação de 0, 60, 120 e 180 m³ ha-1 ano-1 de dejeto líquido bovino, em Latossolo muito argiloso, com declividade de 10 %, sob plantio direto e chuva natural, na região de Castro - PR. A aplicação do dejeto líquido bovino não alterou o carbono orgânico total, porém diminuiu as perdas de amônio e nitrato até a dose de 120 m³ ha-1 ano-1, o que indica ser esta a dose máxima recomendada para solo muito argiloso, declive moderadamente ondulado, baixas precipitações e com no mínimo uma semana de intervalo entre a aplicação do dejeto e a ocorrência de chuvas. As concentrações médias ponderadas de amônio e nitrato no escoamento superficial aumentaram com a aplicação de dejeto. As concentrações de amônio estiveram muito acima do máximo permitido pela legislação brasileira, inclusive sem aplicação de dejeto, o que indica a necessidade de práticas que evitem a entrada do escoamento em corpos de água, mesmo em sistemas conservacionistas.

  7. Volume de enxurrada e perda de solo em estradas florestais em condições de chuva natural Runoff volume and soil loss from forest roads under normal rainfall conditions

    Directory of Open Access Journals (Sweden)

    Alessandra Reis Garcia

    2003-08-01

    Full Text Available Foram determinados o volume total de água escoada e a perda de solo através da produção de sedimentos provenientes de segmentos de estradas florestais em condições de chuva natural, com diferentes valores de precipitações. As inclinações dos segmentos de 1 e 7% foram analisadas, enquanto os comprimentos variaram de 20 e 40 m, com 4 m de largura. Os segmentos de estrada foram delimitados com tábuas de 0,30 m de largura, envolvidas em lona plástica, para sua impermeabilização. Os dados de volume e intensidade de precipitação diária foram obtidos com a instalação de pluviômetro e pluviógrafo no local. O período de coleta de dados foi de um ano, concentrando-se na época das chuvas. O volume de enxurrada foi mais afetado pelo comprimento do segmento, ao passo que a massa de solo sofreu maior influência da declividade. A massa de solo erosinado cresceu exponencialmente em função do incremento do volume de enxurrada.The total runoff volume and soil loss caused by the production of sediments derived from forest road segments under normal rainfall conditions were determined. Segment slopes from 1 and 7% were analyzed, with segment lengths ranging from 20 and 40 m and width of 4 m. The road segments were marked with 0.30 m wide boards, protected with a plastic, waterproof film. Rainfall volume and intensity data were daily obtained by means of pluviometers and pluviographs. Data collection period was one year, concentrated in the rainy season. Runoff volume was most affected by segment length while soil loss was most affected by steepness. Soil sediment mass increased exponentially in function of the increased runoff volume.

  8. Biochemical Education in Brazil.

    Science.gov (United States)

    Vella, F.

    1988-01-01

    Described are discussions held concerning the problems of biochemical education in Brazil at a meeting of the Sociedade Brazileira de Bioquimica in April 1988. Also discussed are other visits that were made to universities in Brazil. Three major recommendations to improve the state of biochemistry education in Brazil are presented. (CW)

  9. Manaus, Brazil

    Science.gov (United States)

    2002-01-01

    The junctions of the Amazon and the Rio Negro Rivers at Manaus, Brazil. The Rio Negro flows 2300 km from Columbia, and is the dark current forming the north side of the river. It gets its color from the high tannin content in the water. The Amazon is sediment laden, appearing brown in this simulated natural color image. Manaus is the capital of Amazonas state, and has a population in excess of one million. The ASTER image covers an area of 60 x 45 km. This image was acquired on July 16, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER will image Earth for the next 6 years to map and monitor the changing surface of our planet.ASTER is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. Dr. Anne Kahle at NASA's Jet Propulsion Laboratory, Pasadena, California, is the U.S. Science team leader; Bjorn Eng of JPL is the project manager. The Terra mission is part of NASA's Earth Science Enterprise, a long-term research and technology program designed to examine Earth's land, oceans, atmosphere, ice and life as a total integrated system.The broad spectral coverage and high spectral resolution of ASTER will provide scientists in numerous disciplines with critical information for surface mapping, and monitoring dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface

  10. Carajathemis simone, new genus and species from Brazil (Odonata: Libellulidae

    Directory of Open Access Journals (Sweden)

    Angelo B.M. Machado

    2012-12-01

    Full Text Available Carajathemis simone n. gen., n.sp. from the state of Pará, Brazil, is described and illustrated based on 22 specimens collected in a "canga" (laterite lake within the forest at the Flona de Carajás, Parauapebas Municipality. The new libellulid genus fits in the subfamily Sympetrinae and the male keys out to Erythemis in Garrison et al. (2006. The new taxon has a combination of characters that makes it different from all genera of Sympetrinae including Erythemis. The species is remarkable by its large size, pleural striping and especially by the complex and strongly dimorphic leg armature. It seems to be restricted to shallow, rainfall-dependent, iron-rich lakes.Carajathemis simone n. gen., n. sp. do estado do Pará, Brasil, é descrita e ilustrada com base em 22 espécimes coletados em uma lagoa de canga (laterita dentro da Floresta Nacional de Carajás, Município de Parauapebas. O novo gênero de libelulídeos enquadra-se na subfamília Sympetrinae e o macho na chave de Garrison et al. (2006 enquadra-se no gênero Erythemis. O novo gênero tem uma combinação de caracteres que o torna diferente de todos os gêneros de Sympetrinae, inclusive Erythemis. A espécie é notável por seu grande tamanho, pelas faixas pleurais e especialmente pela complexa e dimórfica armadura das pernas. A espécie parece restrita a lagos rasos dependentes de chuva e ricos em ferro.

  11. Rainfall effect on dissipation and movement of diuron and simazine in a vineyard soil Efeito da chuva na dissipação e movimentação de diuron e simazine em solo de vinha

    Directory of Open Access Journals (Sweden)

    C. Alister

    2010-01-01

    , chuvas naturais e chuvas naturais mais irrigação com 180 mm de chuva artificial durante os primeiros 90 dias após a aplicação. O coeficiente de partição no solo (Kd no perfil de solo (a uma profundidade de 0 a 90 cm foi de 2.04 mL g-1 e de 1,4 a 0,66 mL g-1, e a capacidade de adsorção máxima do solo foi de aproximadamente 18,3 mg g-1 e 8.3 mg g-1 para diuron e simazine respectivamente. O diuron e o simazine atingiram uma profundidade de até 90 e 120 cm no solo, com uma média de, respectivamente, 8,3% e 62,4% de movimentação do herbicida abaixo de 15 cm do solo. A meia-vida de simazine no solo (DT50 foi de 38,1 dias e 7,5 dias, enquanto a meia-vida para o diuron foi de 68,0 e 24,6, com chuva natural e irrigação respectivamente. A média de simazine residual remanescente em todo o perfil do solo após 90 DAA foi de 25,4%, e de 39,9% para o diuron, sem nenhum efeito de quantidade de chuva adicional. Em 340 DAA, a quantidade de simazine presente em todo o perfil do solo correspondeu a 13,2% da quantidade inicial aplicada, sendo o diuron mais persistente, com 21,5% do herbicida inicial aplicado. Pode-se atribuir a elevada movimentação no solo com ambos os herbicidas a um processo de não-equilíbrio de sorção, explicado por fluxo preferencial, baixo Kd e elevada dessorção.

  12. Erosão hídrica em um Nitossolo Háplico submetido a diferentes sistemas de manejo sob chuva simulada. II - Perdas de nutrientes e carbono orgânico Water erosion on an Hapludox submitted to different soil managements under simulated rainfall. II - Nutrient and organic carbon losses

    Directory of Open Access Journals (Sweden)

    I. Bertol

    2004-12-01

    Full Text Available Com a erosão hídrica, há o transporte de nutrientes para fora das lavouras e, com isso, pode ocorrer o empobrecimento dos solos e a contaminação do ambiente fora do local da erosão. Utilizando um simulador de chuvas de braços rotativos, foram aplicadas, no campo, três chuvas simuladas no cultivo do milho e três no de feijão, com intensidade constante de 64 mm h-1 e energia cinética de 0,2083 MJ ha-1 mm-1 , no Planalto Sul Catarinense, entre março de 2001 e abril de 2003, para avaliar as perdas de nutrientes e carbono orgânico (CO pela erosão hídrica sobre os seguintes tratamentos de manejo do solo, em duas repetições: solo sem cultivo com uma aração + duas gradagens (SSC; cultivos de milho e feijão com uma aração + duas gradagens sobre resíduos dessecados (PCO; cultivos de milho e feijão em semeadura direta sobre resíduos dessecados em solo previamente preparado (SDI; cultivos de milho e feijão em semeadura direta sobre resíduos dessecados em solo nunca preparado (SDD, cultivos de milho e feijão em semeadura direta sobre resíduos queimados em solo nunca preparado (SDQ; e solo sem cultivo com campo nativo melhorado (CNM. Utilizou-se um Nitossolo Háplico alumínico argiloso, com inclinação média do terreno de 0,165 m m-1. As concentrações dos nutrientes e do CO nos sedimentos transportados por erosão foram maiores nos preparos conservacionistas do que nos convencionais, enquanto as perdas totais comportaram-se de maneira inversa. Na água da enxurrada, as concentrações e as perdas de NH4+ e NO3- diminuíram do cultivo do milho para o do feijão, enquanto as de P aumentaram. No caso do K, ocorreu redução da concentração e aumento das perdas. As taxas de empobrecimento do solo situaram-se, em geral, próximas de um para os nutrientes e para o CO. As concentrações dos nutrientes e do CO nos sedimentos transportados correlacionaram-se, linear e positivamente, com a composição química da camada de 0

  13. Relações entre precipitações intensas de diferentes durações para desagregação da chuva diária em Santa Catarina Relationships between intense rainfall of different durations for disaggregation of daily rainfall in Santa Catarina

    Directory of Open Access Journals (Sweden)

    Álvaro J. Back

    2012-04-01

    Full Text Available Com este trabalho objetivou-se determinar as relações entre precipitações de diferentes durações para o Estado de Santa Catarina. Foram estabelecidas as séries de máximas anuais de chuva com duração de 5 a 1440 min de treze estações pluviográficas de Santa Catarina. Para cada duração foram estimadas as precipitações máximas com período de retorno de 2 a 100 anos, com base na distribuição de Gumbel-Chow. A relação média entre a chuva de 24 h e a chuva de um dia independe do período de retorno, com média para o estado de 1,17. Ao se analisar o horário da leitura da precipitação diária verificou-se que esta relação varia de 1,12 a 1,20. Em referência à chuva de 1 h em relação à chuva de 24 h observam-se valores significativamente inferiores aos normalmente usados.The aim of this study was to determine the relationships between rainfalls of different durations for the State of Santa Catarina. The series of annual maximum rainfall were defined with a duration of 5 to 1440 min of thirteen precipitation stations in Santa Catarina. For each duration maximum rainfall were estimated with a return period of 2 to 100 years, based on the Gumbel-Chow distribution. The relationship between the average rainfall of 24 h and one day rain does not depend on the return period, with an average of 1.17 for the State. When analyzing the time reading the daily precipitation it was messed that this ratio varies from 1.12 to 1.20. In relation to 1 h of rain over 24 h of rain it was observed values significantly lower than those normally used.

  14. Influência da soma térmica e da chuva durante o desenvolvimento de laranjas-'Valência' e 'Natal' na relação entre sólidos solúveis e acidez e no índice tecnológico do suco Influence of the accumulated heat unit and rainfall on the ratio and technological index of sweet oranges 'Valência' and 'Natal'

    Directory of Open Access Journals (Sweden)

    CLOVIS ALBERTO VOLPE

    2002-08-01

    Full Text Available Este trabalho foi realizado com o objetivo de conhecer a influência que algumas variáveis meteorológicas exercem na razão entre sólidos solúveis totais e acidez total titulável ("ratio" e no índice tecnológico dos frutos da primeira florada das laranjeiras-'Natal' e 'Valência', na região de Bebedouro-SP, mediante a utilização de métodos estatísticos de regressão. Foram utilizados dados de amostragens de rotina para o processamento industrial durante 4 anos, os quais permitiram desenvolver equações de regressão linear e quadrática, com a soma térmica (graus-dia como variável independente, e de regressão múltipla, utilizando graus-dia e chuva como variáveis independentes. A equação de melhor ajuste para o índice tecnológico foi a quadrática, enquanto para o "ratio" a equação linear apresentou o melhor ajuste. A temperatura do ar, representada por graus-dia, foi a variável que exerceu maior influência nos indicadores de qualidade dos frutos.This study aimed to know the influence of some meteorological variables on the ratio and technological index for oranges provided from 'Natal' and 'Valencia' orchards, from field plots, located at Bebedouro - São Paulo - Brazil. The quality indicators, ratio and technological index, were obtained from routine processing plant tests. These parameters were related to the meteorological variables: degree-day and rainfall. In order to determine which independent variable had a stronger influence on the fruit quality indicators, single and multiple linear regressions analysis were applied. The results have shown that technological index is better described by a quadratic function, and ratio is better described by a linear regression, as function of independent variables. The statistical analysis have indicated that the air temperature, expressed by accumulated degree day, is the meteorological aspect that had greater influence in fruit quality indicators.

  15. Atributos físicos, químicos e erosão entressulcos sob chuva simulada, em sistemas de plantio direto e convencional Physics and chemical attributes and enter-rill erosion under simulated rain in no tillage and conventional systems

    Directory of Open Access Journals (Sweden)

    Cristiane G. da Silva

    2005-04-01

    Full Text Available Este trabalho teve como objetivo estimar as perdas de solo e água, nos sistemas de plantio direto e convencional, e foi realizado no câmpus experimental da UFMS, em Dourados - MS, em solo classificado como Latossolo Vermelho distroférrico, no período compreendido entre outubro de 2001 e novembro de 2002. As estimativas das perdas de solo e de água foram feitas utilizando-se do infiltrômetro de aspersão InfiAsper/UFMS, regulado para aplicar chuva com intensidade de 60 mm h-1, correspondendo à energia cinética de aproximadamente 820 Jm-2. Foram utilizados os seguintes tratamentos: sucessão milho-pousio; sucessão milho-trigo; sucessão milho-nabo; sucessão milho-ervilhaca; sucessão milho-aveia, os quais foram avaliados nos sistemas de preparo convencional (PC e plantio direto (PD. Com os resultados obtidos, foram ajustadas equações de regressão, com as quais foi possível obter valores de perda de solo que variaram de 5,34 g m-2 na sucessão milho-aveia a 47,75 g m-2 na sucessão milho-nabo para o PC, e de 1,09 g m-2 na sucessão milho-trigo a 4,19 g m-2 na sucessão milho-ervilhaca para o PD. As perdas de água variaram de 0,00329 m³m-2 na sucessão milho-aveia a 0,00988 m³m-2 na sucessão milho-nabo, e de 0,00123 a 0,00663 m³m-2 na sucessão milho-pousio para o PC e para o PD, respectivamente.This work was developed in order to estimate the soil and water loss in no tillage and conventional systems. The work was carried out at Experimental Center of the Federal University of Mato Grosso do Sul - UFMS, in Dourados - MS - Brazil, in a soil classified as "Latossolo Vermelho distroférrico", in a period between October, 2001, and November, 2002. Soil and water loss estimations were done using a sprinkling infiltrometer InfiAsper/UFMS, adjusted to apply a rainfall of 60 mm h-1 of intensity, corresponding to kinetic energy of 820 Jm-2. The estimates were calculated in five treatments: corn-rest succession, corn-wheat succession, corn

  16. Macroinvertebrates under stochastic hydrological disturbance in Cerrado streams of Central Brazil Macroivertebrados sob perturbações hidrológicas estocásticas em riachos de Cerrado do Brasil Central

    Directory of Open Access Journals (Sweden)

    Victor S. Saito

    2012-01-01

    Full Text Available In the Cerrado vegetation, where the seasonal is well defined, rainfall has an important role in controlling the flow of streams and consequently on the structure of macroinvertebrates community. Despite the effects of rainfall associated with seasonality are well studied, little is known about the effects of stochastic rains on the community. In the present study we evaluated the structure and faunal composition of four first-order streams in Central Brazil during the dry season in two years, with and without stochastic rains. Community sampling was done by colonization of boards of high density polyethylene (HDPE, removed after one month submerged in streams. Analysis of Variance (ANOVA performed indicated no difference in rarefied richness between the two periods, different from numeric density of organisms that was higher in the period without disturbance; moreover, the Detrended Correspondence Analysis (DCA revealed differences in faunal composition between the two periods. Our results indicate that stochastic rainfall is an important factor in structuring the macroinvertebrates community in studied region.No Cerrado, onde o regime pluviométrico é bem definido, as chuvas tem um importante papel no controle da vazão dos riachos e, por consequência, sobre a estruturação da fauna de macroinvertebrados. Apesar dos efeitos das chuvas associados à sazonalidade serem bem estudados, pouco se sabe a respeito dos efeitos de chuvas estocásticas sobre a comunidade. No presente estudo nós avaliamos a estrutura e a composição faunística de quatro riachos de primeira ordem no Brasil Central na estação seca em dois anos, com e sem chuvas estocásticas. A amostragem da comunidade foi feita através da colonização de placas de polietileno de alta densidade (PEAD, removidas após um mês submersas nos riachos. A Análise de Variância (ANOVA realizada não indicou diferença da riqueza rarefeita entre os dois períodos coletados, diferente da

  17. Study of the shallow convection over the Belem region in Brazil

    Science.gov (United States)

    Bassi Marinho Pires, Luciana; Suselj, Kay; Rossato, Luciana; Teixeira, Joao

    2016-04-01

    The largest forest of the world, the Amazon, presents an interesting and very complex system mixing forests, various topographies, sites of deforestation, cities, and regions close and far from the coast, which influence the climatology of the region. This study was focused in the region of Belem which is considered the rainiest region in the eastern Amazon with precipitation around 2000 mm/year. Belem is the capital of Para state, which is located in northern Brazil, 2,146 kilometers from Brasilia with an area of about 1,059,458 km² and a population of 1,432,844 inhabitants with 26% of the area of the Brazilian Amazon and having 49% of its natural attractions, according to the Organization of American States. Shallow convection and deep convection are among the main components of the local energy balance. An analysis of the performance of the Jet Propulsion Laboratory /NASA model of shallow convection parameterization in a framework of the single column model (SCM) in relation to the cluster of cumulus clouds formed in the coastal region of the Amazon forest due to squall lines is provided. To achieve this purpose infrared images from the Geostationary Operational Environmental Satellite (GOES), visible images from the GOES-12/METEOSAT satellites, and data obtained by the "Cloud processes of the main precipitation systems in Brazil: A contribUtion to cloud resolVing modeling and to the GPM (GlobAl Precipitation Measurement)" - CHUVA - campaign, during the month of June of 2011, were used. Results demonstrated that the parameterizations performed well in the case where only a core of clouds was observed.

  18. Brazil : Eradicating Child Labor in Brazil

    OpenAIRE

    World Bank

    2001-01-01

    The report reviews evidence of child labor in Brazil, and the Government's efforts to eradicate its worst forms, by examining background assessments of ongoing programs for its prevention. It seeks to identify promising strategies, addressing the needs of highly vulnerable children in urban areas, engaged in activities such as drug commerce, prostitution, or other dangerous activities. One...

  19. Eficácia do herbicida glifosato-potássico submetido à chuva simulada após a aplicação Effects of rainfall on efficacy the potassium glyphosate in weeds

    Directory of Open Access Journals (Sweden)

    Gustavo Martini

    2003-01-01

    Full Text Available Apesar de possuir boa ação herbicida, alguns fatores afetam a eficácia do glifosato e, nesse contexto, realizaram-se estudos buscando formulações mais eficazes. O experimento foi instalado em área do Campus da FCAV-UNESP, Jaboticabal (SP. Testou-se a formulação potássica de glifosato comparada com solução aquosa e grânulos dispersíveis em água à mesma dosagem (0,36 kg.ha-1 e.a em cinco intervalos (1, 2, 4, 6 e > 48 horas sem chuva após a aplicação, comparados com uma testemunha sem uso de herbicidas. Foram aplicados em pós-emergência sobre Brachiaria plantaginea, B. decumbens e Digitaria horizontalis. A aplicação foi feita com pulverizador costal a CO2, à pressão de 2,5 kg.cm-2, munido de barra com seis bicos DG 110.02 e consumo de calda equivalente a 200 L.ha-1. Realizaram-se cinco avaliações de porcentagem de controle em relação à testemunha infestada, atribuídas visualmente, até 42 dias após aplicação. Notou-se que o controle da formulação potássica sobre as espécies avaliadas foi mais precoce, necessitando apenas quatro horas após sua aplicação para se igualar ao intervalo superior a 48 horas sem chuva. As demais necessitaram de, no mínimo, seis horas de intervalo.In spite of possessing good herbicidal action, some factors affect the effectiveness of the glyphosate and, in that context, studies were accomplished looking for more effective formulations. The experiment was installed in area of FCAV-UNESP Campus, in Jaboticabal, São Paulo State. The potassium glyphosate formulation was compared to CS and WG formulations, at the same rate (0.36 kg.ha-1 a.e, in five intervals (1, 2 ,4 6 and 48 hours without rain after the application, compared to a control without herbicides. They were applied in post emergence on Brachiaria plantaginea, B. decumbens and Digitaria horizontalis. The herbicides were applied with costal sprayer, at a constant pressure (35 lbf/pol², with four nozzles DG 11002. The

  20. Precipitação efetiva e interceptação das chuvas por floresta de Mata Atlântica em uma microbacia experimental em Cunha - São Paulo

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    Arcova Francisco Carlos Soriano

    2003-01-01

    Full Text Available São apresentados os resultados de pesquisa que quantificaram a precipitação efetiva e a interceptação das chuvas pelo dossel da floresta secundária de Mata Atlântica na "microbacia experimental B", do Laboratório de Hidrologia Florestal Walter Emmerich, em Cunha-SP. No período de um ano foram medidos a precipitação no aberto, a precipitação interna e o escoamento pelo tronco das árvores, totalizando 54 coletas. Um pluviômetro em área aberta e 16 no interior da floresta foram utilizados para quantificação dos dois primeiros processos, respectivamente. Para determinação do escoamento pelo tronco foram instalados dispositivos de espuma de poliuretano em 38 árvores. A água interceptada foi estimada pela diferença entre a precipitação no aberto e a precipitação efetiva. Concluiu-se que, em média, 18,6% da precipitação foi interceptada pela floresta, retornando à atmosfera na forma de vapor. Um montante de 81,2% alcançou o piso como precipitação interna e apenas 0,2% como escoamento pelo tronco. Os fluxos de precipitação interna e escoamento pelo tronco foram maiores no período caracterizado como chuvoso. Os porcentuais de interceptação foram superiores no período pouco chuvoso.

  1. Desenvolvimento e análise de uma rede neural artificial para estimativa da erosividade da chuva para o Estado de São Paulo Estimates of rainfall erosivity in São Paulo state by an artificial neural network

    Directory of Open Access Journals (Sweden)

    Michel Castro Moreira

    2006-12-01

    Full Text Available O conhecimento do valor da erosividade da chuva (R de determinada localidade é fundamental para a estimativa das perdas de solo feitas a partir da Equação Universal de Perdas de Solo, sendo, portanto, de grande importância no planejamento conservacionista. A fim de obter estimativas do valor de R para localidades onde este é desconhecido, desenvolveu-se uma rede neural artificial (RNA e analisou-se a acurácia desta com o método de interpolação "Inverso de uma Potência da Distância" (ID. Comparando a RNA desenvolvida com o método de interpolação ID, verificou-se que a primeira apresentou menor erro relativo médio na estimativa de R e melhor índice de confiança, classificado como "Ótimo", podendo, portanto, ser utilizada no planejamento de uso, manejo e conservação do solo no Estado de São Paulo.Knowledge on rainfall erosivity (R of particular sites is fundamental for soil loss estimation by the Universal Soil Loss Equation (USLE and therefore highly important in conservation planning. In order to obtain the R value estimates for places where it is unknown, an artificial neural network (ANN was developed for the state of São Paulo, and its accuracy compared with the Inverse Distance Weighted (IDW interpolation method. The developed ANN presented a smaller mean relative error in the R estimation and a confidence index classified as "excellent", better than the IDW. ANN can therefore be used to estimate R values for soil use planning, management and conservation in São Paulo state.

  2. Ação do flúor dissolvido em chuva simulada sobre a estrutura foliar de Panicum maximum jacq. (colonião e Chloris gayana kunth. (capim-rhodes - Poaceae

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    Chaves Alba Lucilvânia Fonseca

    2002-01-01

    Full Text Available Panicum maximum e Chloris gayana foram submetidas à chuvas simuladas com soluções de fluoreto de potássio (15mg ml-1 com objetivo de identificar as injúrias causadas pelo flúor (F-, como poluente atmosférico, na estrutura da lâmina foliar e fornecer subsídios para a seleção de características diagnósticas a serem utilizadas na bioindicação. Os principais sintomas foram clorose e necrose, principalmente no ápice e margens das lâminas. Nos cortes transversais, quatro tipos de alterações causadas pelo flúor são relacionadas: redução do número, tamanho e arranjo dos cloroplastos; necrose dos tecidos principalmente nas margens das folhas; erosões na superfície da folha e hipertrofia das células. Em C. gayana, no entanto, não foram observadas as alterações nos cloroplastos e os outros sintomas foram bem mais discretos que em P. maximum. A ocorrência de compostos fenólicos foi registrada pela coloração com fucsina em todas as regiões da lâmina onde foram observadas lesões. Ao microscópio eletrônico de varredura foi observado o achatamento e formação de concavidades nas paredes externas das células. Este experimento confirma a maior sensibilidade de P. maximum ao flúor e revela algumas características anatômicas de C. gayana que, entre outros fatores, podem estar contribuindo para a maior resistência desta espécie a este poluente.

  3. Zika: Why Brazil, Why Now

    Science.gov (United States)

    ... medlineplus.gov/news/fullstory_160251.html Zika: Why Brazil, Why Now Several factors -- including economics, climate and ... 5, 2016 THURSDAY, Aug. 4, 2016 (HealthDay News) -- Brazil, by a wide margin, has been the country ...

  4. Corporate Governance Country Assessment : Brazil

    OpenAIRE

    World Bank

    2005-01-01

    This report assesses Brazil's corporate governance policy framework. It highlights recent improvements in corporate governance regulation, makes policy recommendations, and provides investors with a benchmark against which to measure corporate governance in Brazil. It is an update of the 2005 corporate governance Report on the Observance of Standards and Codes (ROSC). Brazil's experience o...

  5. [A better Brazil].

    Science.gov (United States)

    Lesser, Jeffrey

    2014-01-01

    Many countries in the Americas describe themselves as "nations of immigrants." In the United States, the myth of the "promised land" suggests that foreigners better themselves upon arrival because the nation is intrinsically great. In Brazil, however, the relationship between immigration and national identity is different. Many intellectuals, politicians, and cultural and economic leaders saw (and see) immigrants as improving an imperfect nation that has been tainted by the history of Portuguese colonialism and African slavery. As a result, immigrants were often hailed as saviors because they modified and improved Brazil, not because they were improved by Brazil. This "improvement" took place through absorption, mixture and with the use of increasingly flexible racial and ethnic categories.

  6. Scientific integrity in Brazil.

    Science.gov (United States)

    Lins, Liliane; Carvalho, Fernando Martins

    2014-09-01

    This article focuses on scientific integrity and the identification of predisposing factors to scientific misconduct in Brazil. Brazilian scientific production has increased in the last ten years, but the quality of the articles has decreased. Pressure on researchers and students for increasing scientific production may contribute to scientific misconduct. Cases of misconduct in science have been recently denounced in the country. Brazil has important institutions for controlling ethical and safety aspects of human research, but there is a lack of specific offices to investigate suspected cases of misconduct and policies to deal with scientific dishonesty.

  7. Influência da palha e da simulação de chuva sobre a eficácia da mistura formulada clomazone + hexazinone no controle de plantas daninhas em área de cana-crua Effect of sugarcane straw and rain simulation on the efficacy of clomazone + hexazinone in controlling weeds in raw sugarcane area

    Directory of Open Access Journals (Sweden)

    E. Negrisoli

    2011-03-01

    Full Text Available O experimento teve o objetivo de avaliar os efeitos da cobertura de palha e da simulação de chuva sobre a eficácia da mistura formulada clomazone + hexazinone no controle de plantas daninhas em área de cana-crua. Foi avaliado o controle de Brachiaria decumbens, Ipomoea grandifolia, Ipomoea hederifolia e Euphorbia heterophylla. A dose do herbicida utilizada foi de 2,2 kg ha-1 de produto comercial, correspondendo a 880 e 220 g ha-1 dos ingredientes ativos clomazone e hexazinone, respectivamente. Os tratamentos utilizados foram: T1 semeadura + palha 5 t ha-1 + aplicação + chuva de 30 mm (1DAA; T2 semeadura + chuva de 30 mm + palha 5 t ha-1 + aplicação; T3 semeadura + aplicação + palha 5 t ha-1 ; T4 semeadura + palha 5 t ha-1 + chuva de 30 mm + aplicação (12h após; T5 semeadura + palha 5 t ha-1 + aplicação + chuva de 2,5 mm (logo após; T6 semeadura + aplicação + chuva de 30 mm; T7 testemunha sem palha; e T8 testemunha com 5 t ha-1 de palha, totalizando oito tratamentos com quatro repetições, dispostos no delineamento experimental de blocos casualizados. Foram feitas avaliações visuais de controle aos 6, 13, 21, 27 e 35 dias após a aplicação (DAA. Para controle de B. decumbens, os melhores tratamentos foram aqueles nos quais o herbicida foi aplicado diretamente no solo, recebendo ou não uma camada de palha sobre o solo após a aplicação do herbicida, e quando foi aplicado sobre a camada de palha, recebendo uma chuva após a aplicação. Para a espécie E. heterophylla, os resultados foram bastante satisfatórios, proporcionando médias acima de 98% de controle, quando ocorreram precipitações posteriores à aplicação do herbicida. De modo geral, os tratamentos com a aplicação do herbicida, na ausência ou presença de palha, e posterior chuva apresentaram controle total da espécie I. hederifolia aos 35 DAA. Todos os tratamentos mostraram excelente controle para a espécie I. grandifolia.The experiment was conducted

  8. Eand P opportunities in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Castilho, Marcelo [National Petroleum Agency of Brasil (Brazil)

    2011-07-01

    Brazil is one of the world's largest economies and the country also has significant heavy oil reserves. This report from the National Petroleum Agency of Brazil aims at presenting the situation of the oil and gas sector in Brazil in terms of resources, production, regulatory framework and opportunities for the future. Brazil has numerous sedimentary basins at its disposal, most of them being prospected by both national and foreign companies from all over the world. Brazil has over 14 billion barrels of proven reserves, its production is 2,1 MMBbl/d and heavy oil represents almost 40% of that production. The National Petroleum Agency of Brazil is responsible for the implementation of oil sector policy with the aims of maintaining self-sufficiency, implementing good practices in terms of health and safety, and increasing local content. This paper pointed out that Brazil has an important opportunity to enhance its energy sector through the development of heavy oil.

  9. Interceptação das chuvas em um fragmento de floresta da Mata Atlântica na Bacia do Prata, Recife, PE Rainfall interception in an Atlantic Forest fragment in the Prata Basin, Recife, PE

    Directory of Open Access Journals (Sweden)

    Albert Einstein Spindola Saraiva de Moura

    2009-06-01

    Full Text Available A mata de Dois Irmãos é uma das poucas áreas remanescentes da Floresta Atlântica no Estado de Pernambuco. Nela estão inseridos os açudes do Meio, do Prata e Dois Irmãos que compõem a bacia hidrográfica do Prata. Este trabalho teve como objetivo estudar a partição das chuvas em um fragmento de Floresta Atlântica na Bacia do Prata em Recife, PE. Para obtenção dos dados de precipitação sob florestas, foram instalados 24 interceptômetros e selecionadas 20 árvores do estrato superior, e 10 árvores do sub-bosque foram escolhidas para obter os dados de escoamento pelo tronco. Encontraram-se perdas por interceptação de 208,3 mm, precipitação efetiva de 1.431,7 mm, precipitação interna de 1.392,4 mm, escoamento pelo tronco das árvores do estrato superior de 6,6 mm e escoamento pelo sub-bosque de 32,8 mm, correspondendo a 12,7%, 87,3%, 84,9%, 0,4% e 2%, respectivamente, do total precipitado de 1.464 mm.The Dois Irmãos forest is one of the few remaining areas of the Atlantic Forest in the State of Pernambuco. The dams of Meio, Prata and Dois Irmãos, which belong to the Prata Basin, are in it. The objective of this work was to study the rainfall partitioning in a fragment of the Atlantic forest in the Prata basin, in Recife, PE. 24 raingouges were installed in the interior of the forest to measure the throughfall and 20 trees of superior extract and 10 of the sub-forest were selected to determine the stemflow. The results showed values of loss interception of 208,3 mm, net precipitation of 1431,7 mm, throughfall of 1392,4 mm, stemflow by superior stratum of 6,6 mm and stemflow by sub-forest of 32,8 mm, corresponding to 12,7%, 87,3%, 84,9%, 0,4% and 2%, respectively.

  10. Características da chuva e perdas por erosão sob diferentes práticas de manejo do solo Rainfall characteristics and erosion losses for different soil management practices

    Directory of Open Access Journals (Sweden)

    Daniel F. de Carvalho

    2009-02-01

    Full Text Available Objetivou-se com este trabalho, avaliar as relações entre a erosividade da chuva e os padrões da precipitação com as perdas por erosão, para diferentes tipos de preparo do solo em um Argissolo Vermelho-Amarelo. O experimento foi conduzido utilizando-se parcelas experimentais de perda de solo com dimensões de 3,5 x 22,0 m, com os seguintes tratamentos: preparo convencional do solo em nível e semeadura de Mucuna Cinza (Mucuna pruriens, Crotalária (Crotalaria juncea, e Milho (Zea mays L.; preparo convencional do solo no sentido do declive e semeadura de milho no mesmo sentido e preparo convencional do solo no sentido do declive, mantido sem qualquer tipo de cobertura. Foi possível evidenciar que as perdas de solo foram mais influenciadas pelos diferentes tratamentos que as perdas de água; os tratamentos Crotalária e Milho morro abaixo, foram aqueles que apresentaram, respectivamente, as menores e maiores perdas de solo e água e, em média, os eventos de precipitação caracterizados como avançado, intermediário e atrasado, foram responsáveis por 62,6, 11,8 e 25,6% das perdas de água e por 35,1, 6,6 e 58,3% das perdas de solo, respectivamente.This study was carried out in order to evaluate the relation between erosivity index and the rainfall pattern associated with different kinds of soil preparation and cover with erosion losses in a Red Yellow Argisol. The experiment was conducted in five soil loss experimental plots of 3.5 x 22.0 m, with the following treatments: conventional tillage (plowing plus disking in contour lines and sowing the velvet bean (Mucuna pruriens, sun hemp (Crotalaria juncea and corn (Zea mays L.; conventional tillage (plowing plus disking in slope line and sowing of corn, conventional tillage (plowing plus disking in slope line and without soil cover. The results showed that soil loss was more affected by different treatments than water loss; the treatments sun hemp and corn sowed in slope line were those

  11. Quantificação dos herbicidas glyphosate e sulfosate na água após simulação de chuva Glyphosate and sulfosate quantification in the water after rainfall simulation

    Directory of Open Access Journals (Sweden)

    N.M. Pires

    2000-01-01

    Full Text Available A lavagem de herbicidas aplicados nas folhas das plantas é influenciada por características relacionadas com a planta e por fatores ambientais. Dentre os fatores ambientais, umidade do solo e precipitação pluvial podem interferir de forma significativa no desempenho desses produtos; assim, o conhecimento dessa interferência é fundamental para racionalização da aplicação de herbicidas no manejo das plantas daninhas. O objetivo deste trabalho foi quantificar resíduos dos herbicidas glyphosate e sulfosate na água, após aplicação foliar desses herbicidas e de 53 mm h-1 de chuva simulada sobre plantas de Brachiaria brizantha cultivadas em ausência e sob estresse hídrico. Utilizou-se neste estudo o tomateiro (Lycopersicon esculentum 'Santa Clara' como planta-teste. O comprimento de raiz foi a característica mais sensível e também a mais adequada para evidenciar a resposta das plantas às doses dos herbicidas, e o tomateiro se mostrou mais sensível ao glyphosate do que ao sulfosate. Os valores de I50 para o glyphosate e o sulfosate obtidos nas curvas-padrão foram de 324,1 e 407,8 mg L-1, respectivamente, para o comprimento de raiz. O I50 foi menor quando os herbicidas foram aplicados em plantas sob estresse hídrico.Knowledge of foliar herbicide washout is essential to optimize weed management and to avoid environmental problems. Bioassays to detect small quantities of herbicides in water samples are low-cost techniques extensively used in herbicide research. These methods measure the biological response of a living organism to determine the presence and concentration of a chemical in a substrate. The purpose of this paper was to quantify glyphosate and sulfosate residues in the water, after 53 mm h-1 of rainfall simulation, applied to the Brachiaria brizantha plant, grown without and under water stress. Tomato (Lycopersicon esculentum was used as test-plant. According to the results, it may be concluded that: the I50 values for

  12. Produtividade da água de chuva em culturas de subsistência no Semiárido Pernambucano Rain water productivity in subsistence crops in the Semiarid of Pernambuco

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    Luiza T. de L. Brito

    2012-02-01

    Full Text Available Os diferentes sistemas de cultivo utilizados pelos agricultores do Semiárido brasileiro apresentam riscos de perdas devido às irregularidades das chuvas, sendo, portanto, necessário associá-los a práticas que propiciem maior disponibilidade de água no solo durante o ciclo de cultivo. Neste trabalho, objetivou-se avaliar a aplicação de quantidades mínimas de água e adubação orgânica na produtividade de feijãocaupi, cultivar BRS-Pujante e de milho, cultivar BRS-Caatingueiro. Os resultados indicam que as maiores produtividades de grãos foram obtidas com o tratamento que associou a irrigação de salvação com a adubação orgânica, sendo para o feijão-caupi de 1.422,5 kg ha-1, e para o milho, de 6.099,1 kg ha-1, seguido pelo tratamento que usou somente a adubação orgânica, para ambas as culturas. Porém, comparando-se o efeito da adubação orgânica aplicada de forma isolada sobre a testemunha, observa-se que ocorreram aumentos de 54,5% e de 237,3% nas produtividades de feijão e de milho, respectivamente, ressaltando a importância do uso da adubação orgânica nas culturas.The different crop systems used by farmers in the Brazilian semiarid show risk of loss due to the rainfall irregularity being therefore necessary to associate them to practices that provide higher availability of soil water during the cropping season. This study aimed to evaluate the application of minimal amounts of water and organic fertilization on yields of cowpea, BRS-Punjante cultivar (Vigna unguiculata (L. Walp. and maize, BRS-Caatingueiro cultivar (Zea mays L.. The results indicate that the highest yield of grain were obtained with the treatment which involved the salvation irrigation with organic manure, the cowpea 1,422.5 kg ha-1 and the corn 6,099.1 kg ha-1, followed by treatments that used only organic fertilization for both species. However, comparing the effect of organic manure applied alone on the control experiment were observed increases

  13. Chikungunya risk for Brazil

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    Raimunda do Socorro da Silva Azevedo

    2015-01-01

    Full Text Available This study aimed to show, based on the literature on the subject, the potential for dispersal and establishment of the chikungunya virus in Brazil. The chikungunya virus, a Togaviridae member of the genusAlphavirus, reached the Americas in 2013 and, the following year, more than a million cases were reported. In Brazil, indigenous transmission was registered in Amapa and Bahia States, even during the period of low rainfall, exposing the whole country to the risk of virus spreading. Brazil is historically infested by Ae. aegypti and Ae. albopictus, also dengue vectors. Chikungunya may spread, and it is important to take measures to prevent the virus from becoming endemic in the country. Adequate care for patients with chikungunya fever requires training general practitioners, rheumatologists, nurses, and experts in laboratory diagnosis. Up to November 2014, more than 1,000 cases of the virus were reported in Brazil. There is a need for experimental studies in animal models to understand the dynamics of infection and the pathogenesis as well as to identify pathophysiological mechanisms that may contribute to identifying effective drugs against the virus. Clinical trials are needed to identify the causal relationship between the virus and serious injuries observed in different organs and joints. In the absence of vaccines or effective drugs against the virus, currently the only way to prevent the disease is vector control, which will also reduce the number of cases of dengue fever.

  14. English Teaching Profile: Brazil.

    Science.gov (United States)

    British Council, London (England). English Language and Literature Div.

    This review of the status of English language instruction in Brazil provides an overview of the Brazilian geographic, historical, and political context and the role of English in the society in general and in the educational system. The following topics are covered: an outline of the status of English use and instruction in the educational system…

  15. Adult Education in Brazil.

    Science.gov (United States)

    Ministerio da Educacao e Cultura, Rio de Janeiro (Brazil).

    The status and goals of adult education programs in Brazil are discussed in this report. Supplemental systems such as the Brazilian Literacy Movement (Mobral) and their results are described and evaluated. Charts detailing the evolution of literacy are shown and priorities in education are suggested. The progress of other educational entities is…

  16. IHY activities in Brazil

    Science.gov (United States)

    Dal Lago, Alisson

    The International Heliophysical Year is a program of international scientific colaboration planned to be held in the period from 2007-2009. Many brazilian institutions have shown interest in participating in the IHY activities. All of them provided information about their instrumental facilities and contact person. A list of institutions and their information is shown in the Latin-American IHY webpage (http://www.alage.org/IHYLA/ihyla.html), hosted by the Latin American Association on Space Geophysics - ALAGE. IHY Brazilian activities are being conducted in close colaboration with Latin-American Institutions. Five Coordinated Investigation programs (CIPs) have been proposed by scientists from brazilian institutions. Recentely, in February 2008, there has been the Latin American IHY School in Sao Paulo (Brazil), with the participation of 80 students from Brazil, Argentina, Peru, Mexico and Cuba. In this work, a report on the brazilian activities will be presented.

  17. Heliostat tailored to Brazil

    OpenAIRE

    Pfahl, Andreas; Bezerra, Pedro; Hölle, Erwin; Liedke, Phillip; Teramoto, Erico Tadao; Hertel,Johannes; Lampkowski, Marcelo; Oliveira, L

    2015-01-01

    For Brazil it is important to realize a high local production share because of high import tax rates. The rim drive concept offers an alternative for expensive heliostat drive solutions with slew and linear drives from abroad. By (locally produced) rims the demands on the drives regarding strength and precision are reduced to a very low value and low cost drives can be used. Sandwich facets (which are usually foreseen for rim drive heliostats) are not available from Brazilian manufacturers an...

  18. Innovation Policies of Brazil

    Science.gov (United States)

    2013-09-01

    by the other BRIC countries, particularly China. 18 Discussions with experts. See the appendix. 19 Brazil can have a low actual tariff rate of...Cassiolato, J. E., M. G Podcameni, M. C. Couto Soares, M. Szapiro, P. Koeller, F. Stalivieri, and F. Geremia. 2010. “ BRICS Description and Dynamics of...the Future of Internation Order. Center for a New American Security. Koeller, P, and J. L. Gordon. 2010. “ BRICS the Role of the State in National

  19. INTENSIDADE-DURAÇÃO-FREQÜÊNCIA DE CHUVAS INTENSAS PARA LOCALIDADES NO ESTADO DE GOIÁS E DISTRITO FEDERAL INTENSITY-DURATION-FREQUENCY RELATIONSHIP OF INTENSIVE RAINFALL FOR SITES IN THE GOIÁS STATE AND THE FEDERAL DISTRICT

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    Nori Paulo Griebeler

    2007-09-01

    Full Text Available

    Este trabalho teve como objetivo a obtenção das relações intensidade-duração-frequência para algumas localidades do Estado de Goiás e Distrito Federal, empregando-se a metodologia da desagregação da chuva de um dia. Os resultados das intensidades de precipitação obtidos pelas equações geradas neste trabalho foram comparados com os obtidos pelas equações ajustadas com base em dados de pluviogramas. As relações geradas com o método de desagregação de chuvas de um dia apresentaram desvios relativos médios que variaram de -1,6% a 43,9%, para alguns municípios nessa região. Isso limita a sua utilização nas localidades para as quais não se ajustaram as equações de regressão.

    PALAVRAS-CHAVE: Chuva intensa; drenagem; intensidade-duração-frequência.

    This study had the objective of obtaining rain intensityduration- frequency information for some sites in the State of Goiás and Distrito Federal, using the one-day rain disaggregation method. The precipitation intensities obtained through the equations generated in this paper were compared to those obtained by adjusted equations based on pluviographic data. The intensityduration-frequency relationships generated through pluviometric data using the one-day rain disaggregation method presented relative mean deviations varying between -1.6% and 43.9%, for some municipalities in this region. This limits its use in sites where regression equations were not adjusted.

    KEY-WORDS: Intense rainfall; drainage; intensity-durationfrequency.

  20. A dinâmica atmosférica na vertente oriental da bacia do alto rio Paraná e a gênese das chuvas = The atmospheric dynamics on the eastern slope of the Paraná river basin and the genesis of rain

    Directory of Open Access Journals (Sweden)

    Victor da Assunção Borsato

    2008-07-01

    Full Text Available O ritmo dos sistemas atmosféricos e a intensidade variam no tempo e noespaço. Por isso, para caracterizar a dinâmica climática de uma região é necessário estudar a dinâmica das massas de ar ao longo de uma série. Estudaram-se, por meio da dinâmica das massas de ar, a participação dos sistemas atmosféricos atuantes e as porcentagens das chuvas convectivas e frontais ao longo da vertente oriental da bacia do alto rio Paran��. Verificou-se que, nessa vertente, nos meses mais frios, predomina a atuação da massa tropical Atlântica e da polar Atlântica. Nos meses mais quentes, além de predominar a atuação dos sistemas de baixa pressão equatorial continental e tropical continental, têm-se as chuvas convectivas. Verificou-se, também, progressivo aumento na participação das chuvas convectivas, a partirda década de 1990, corroborando a teoria das mudanças climáticas.The rhythm and intensity of atmospheric systems vary intime and space. Therefore, it is necessary to study the dynamics of air masses over a temporal series in order to characterize the climate dynamics of a region or area. The participation of the active atmospheric systems and the percentage shared by convective andfrontal rains along the eastern slope of upper Paraná River were studied based on the dynamics of air masses. It was observed that, in such a slope, during the coldest months, the actions of the Atlantic tropical mass and polar Atlantic mass prevail. However, during thewarmer months, in addition to the predominance of the action of equatorial continental and tropical continental low atmospheric pressure systems, convective rains also take place. It was also noted that, from the 1990s onward, a progressive increase was observed in the participation of convective rains, strengthening the theory of climatic change.

  1. Seismic monitoring during acid stimulation of wells LV-4 and LV-13 at the Las Tres Virgenes geothermal field, BCS, Mexico; Monitoreo sismico durante la estimulacion acida de los pozos LV-4 y LV-13 del campo geotermico de Las Tres Virgenes, BCS, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Venegas Salgado, Saul; Arredondo Fragoso, Jesus; Ramirez Silva, German; Flores Armenta, Magaly; Ramirez Montes, Miguel [Comision Federal de Electricidad, Gerencia de Proyectos Geotermoelectricos, Morelia, Michoacan (Mexico)]. E-mail: magaly.flores@cfe.gob.mx

    2006-07-15

    From September through December 2004 a seismic monitoring in the Las Tres Virgenes, BCS, geothermal field was carried out simultaneously with the acid stimulation of wells LV-4 and LV-13. The seismic network had four digital seismographs and recorded 174 local seismic events, 131 regional ones and many more volcanic signals at seismic station TV20 during the acid stimulation. Additionally, 37 seismic events were located, 22 of them inside the most important geothermal zone at depths between 0.4 and 4 km with typically low magnitudes (0.7 to 2.2 Md). Two relevant zones were determined: Zone A related to the El Volcan fault system and Zone B related to injection well LV-8. In Zone A the well-induction stage and the operation start of the wells LV-4 and LV-13 after acidification on October 30 and November 17, 2004, increased seismic activity to a maximum of 12 daily events in early December. When the two wells in Zone B were cooled before the acidification, the seismic events recorded there increased to a maximum of 6 daily events on October 2, and then decreased. Also in Zone B the seismic activity increased after well-induction and the start of well production once they were acidified, recording up to 11 daily events in late November. According to the seismic distribution, we may conclude that the most active fault systems are El Volcan and El Viejo. New proposals for well locations in the field are supported by these results. [Spanish] De septiembre a diciembre de 2004 se realizo un estudio de monitoreo sismico en el campo geotermico de Las Tres Virgenes, BCS, simultaneamente con las estimulaciones acidas de los pozos LV-4 y LV-13. Se utilizo una red sismica conformada por cuatro sismografos digitales, logrando registrar en la estacion sismica TV20 un total de 174 sismos locales, 131 sismos regionales y muchas mas senales de tipo volcanico, durante el periodo del monitoreo de la estimulacion acida. Ademas, se localizaron un total de 37 sismos, de los cuales 22 se

  2. Diurnal variability of rainfall in southwest Amazonia during the LBA-TRMM field campaign of the austral summer of 1999 Variação diurna da chuva no sudoeste da Amazônia durante a campanha de campo do experimento LBA-TRMM no verão austral de 1999

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    José A. Marengo

    2004-12-01

    Full Text Available The TRMM-LBA field campaign was held during the austral summer of 1999 in southwestern Amazonia. Among the major objectives, was the identification and description of the diurnal variability of rainfall in the region, associated with the different rain producing weather systems that occurred during the January-February season. By using a network of 40 digital rain gauges implemented in the state of Rondônia, and together with observations and analyses of circulation and convection, it was possible to identify details of the diurnal cycle of rainfall and the associated rainfall mechanisms. Rainfall episodes were characterized by regimes of "low-level easterly" and "westerly" winds in the context of the large-scale circulation. The westerly regime is related to an enhanced South Atlantic Convergence Zone (SACZ and an intense and/or wide Low Level Jet (LLJ east of the Andes, which can extend eastward towards Rondônia, even though some westerly regime episodes also show a LLJ that remains close to the foothill of the Andes. The easterly regime is related to easterly propagating systems (e.g. squall-lines with possible weakened or less frequent LLJs and a suppressed SACZ. Diurnal variability of rainfall during westerly surface wind regime shows a characteristic maximum at late afternoon followed by a relatively weaker second maximum at early evening (2100 Local Standard Time LST. The easterly regime composite shows an early morning maximum followed by an even stronger maximum in the afternoon.O experimento de campo do TRMM-LBA ocorreu conteceu durante o verão austral de 1999, na região do sudeste de Amazonia. Entre os principais objetivos deste trabalho pode-se citar a identificação e descrição da variabilidade diurna da chuva nesta região, associada a diferentes fenômenos meteorológicos e sistemas de tempo que ocorreram durante o período de Janeiro-Fevereiro. Usando uma rede de 40 pluviômetros instalados no estado de Rond

  3. Brazil: Intercultural Experiential Learning Aid.

    Science.gov (United States)

    Brigham Young Univ., Provo, UT. Language Research Center.

    This booklet was designed to facilitate interactions and communication with the people of Brazil by providing information about their customs, attitudes and other cultural characteristics which influence their actions and values. A brief description of Brazil is given, covering the following: its size and geography, history, language, economy,…

  4. Acid drainages of the pyritic sterile from the Pocos de Caldas uranium mine: environmental interpretation and implications; Drenagens acidas do esteril piritoso da mina de uranio de Pocos de Caldas: interpretacao e implicacoes ambientais

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Vicente Paulo de

    1995-12-01

    Considering the planned closure of the first uranium mine and milling plant operating in Brazil, located in the Pocos de Caldas Plateau, in the State of Minas Gerais, in the next two years, there is the need to obtain basic information for its decommissioning. Special attention has been directed to the following critical areas: open pit, tailing, dam and waste rock piles, because these are the main sources of acid drainage generation. These waters cannot be allowed to flow in the external environment because in addition to sulphuric acid, there is a number of elements in concentration above those allowed by regulations. Among the waste piles (bota-foras BF) two of them BF-4 and BF-8, are in a process of acid generation, thus requiring more attention. The objective of this work was to simulate at the laboratory scale the oxidation and the reduction zones of BF-4. The experiments were conducted in acrylic columns, where the waste sample was kept under aerated and saturated conditions, in different columns. The control of the chemical (solubilized chemical species), physico-chemical (redox potential, pH, conductivity) and biological (bacterial activity) parameters has been carried out on the acid solutions generated by the chemical and biological reactions that occur at the waste. Although the results refer to a four month period, some relevant points can be highlighted, which will serve as a basis for further research. The mineralogical characterization identified the existence of other sulphides associated to pyrite with lower oxidation potential than the latter. The results obtained with the biological characterization for the two conditions studied revealed that the bacterial activity is more intense in the region in contact with air, than in saturated region. (author) 30 refs., 29 figs., 8 tabs.

  5. Brazil-U.S. Relations

    Science.gov (United States)

    2010-03-05

    and expanding ties with nontraditional partners, including India and China. Brazil-U.S. cooperation has increased during President Lula’s second...August 21, 2009. 40 Fernanda Odilla, Simone Iglesias & Johanna Nublat, “Brasil vai dobrar efetivo militar no Haiti,” Folha de São Paulo, January 21...defenderá mais regulação no G-20,” O Globo (Brazil), August 6, 2009. 53 Gaurav Singh, “China, India , Brazil Commit to Meet Copenhagen Accord Deadline

  6. Diatomoflórula Perifítica do rio Descoberto - DF e GO, Brasil, Naviculales (Bacillariophyceae: Diploneidineae e Sellaphorineae Periphytic diatom flora of the Descoberto River - Distrito Federal and Goiás State, Brazil, Naviculales (Bacillariophyceae: Diploneidineae and Sellaphorineae

    Directory of Open Access Journals (Sweden)

    Simone Mogami Delgado

    2007-12-01

    Full Text Available (Diatomoflórula Perifítica do rio Descoberto - DF e GO, Brasil, Naviculales (Bacillariophyceae: Diploneidineae e Sellaphorineae. O presente estudo enfocou as diatomáceas perifíticas pertencentes às subordens Diploneidineae e Sellaphorineae de Naviculales (Bacillariophyceae do rio Descoberto, Distrito Federal, Goiás. As coletas foram realizadas em junho e julho/2003 (período de seca e janeiro e fevereiro/2004 (período de chuva, em cinco estações de amostragem. Foram identificados 16 táxons infragenéricos, uma espécie pertencente à ordem Diploneidineae e as demais à ordem Sellaphorineae. Foram registradas 14 citações pioneiras para o estado de Goiás e 15 citações pioneiras para o Distrito Federal.(Periphytic diatom flora of the Descoberto River - Distrito Federal and Goiás State, Brazil, Naviculales (Bacillariophyceae: Diploneidineae and Sellaphorineae. The taxa of the suborders Diploneidineae and Sellaphorineae, Naviculales (Bacillariophyceae are presented as part of a survey of diatoms in the Distrito Federal (DF, Brazil. Samples were collected at five different points along the Descoberto River, one of the main lotic ecosystems in the Distrito Federal during June-July/2003 (dry season and January-February (rainy season. Sixteen species from both suborders were identified; 14 species were cited for the first time for Goiás state and 15 for the Distrito Federal.

  7. Tungsten resources of Brazil

    Science.gov (United States)

    White, Max Gregg

    1974-01-01

    Brazilian tungsten production, 85 percent of which is exported, comes almost entirely from scheelite-bearing tactites in northeast Brazil, and has reached an annual rate of about 2,000 metric tons (2,200 short tons) of scheelite concentrate with 70 percent WO3. Scheelite ore reserves, located principally in the State of Rio Grande do Norte, are estimated to be as high as 8,300,000 tons (9,100,000 short tons) containing 0.7 percent WO3. Minor deposits (or those about which only minimal information is available) of wolframite, with which some cassiterite is associated, are located in Sao Paulo, Santa Catarina, and Rio Grande do Sul. Both the scheelite and the wolframite deposits are considered . to be late Precambrian A (620 to 900 m.y.) or early Cambrian in age.

  8. Pediatric lymphomas in Brazil

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    Gabriela Gualco

    2010-01-01

    Full Text Available OBJECTIVE: This study provides the clinical pathological characteristics of 1301 cases of pediatric/adolescent lymphomas in patients from different geographic regions of Brazil. METHODS: A retrospective analyses of diagnosed pediatric lymphoma cases in a 10-year period was performed. We believe that it represents the largest series of pediatric lymphomas presented from Brazil. RESULTS: Non-Hodgkin lymphomas represented 68% of the cases, including those of precursor (36% and mature (64% cell origin. Mature cell lymphomas comprised 81% of the B-cell phenotype and 19% of the T-cell phenotype. Hodgkin lymphomas represented 32% of all cases, including 87% of the classical type and 13% of nodular lymphocyte predominant type. The geographic distribution showed 38.4% of the cases in the Southeast region, 28.7% in the Northeast, 16.1% in the South, 8.8% in the North, and 8% in the Central-west region. The distribution by age groups was 15-18 years old, 33%; 11-14 years old, 26%; 6-10 years old, 24%; and 6 years old or younger, 17%. Among mature B-cell lymphomas, most of the cases were Burkitt lymphomas (65%, followed by diffuse large B-cell lymphomas (24%. In the mature T-cell group, anaplastic large cell lymphoma, ALK-positive was the most prevalent (57%, followed by peripheral T-cell lymphoma, then not otherwise specified (25%. In the group of classic Hodgkin lymphomas, the main histological subtype was nodular sclerosis (76%. Nodular lymphocyte predominance occurred more frequently than in other series. CONCLUSION: Some of the results found in this study may reflect the heterogeneous socioeconomical status and environmental factors of the Brazilian population in different regions.

  9. Neotectonics in northeastern Brazil

    Science.gov (United States)

    Bezerra, Francisco Hilario Rego

    The thesis describes neotectonic deformation in the continental intraplate region of northeastern Brazil and explores its links with modern seismicity. The region, which is under E-W-oriented compression and N-S-oriented extension, shows shallow earthquake swarms which last for several years and include 5.0-5.2 mb events. Remote sensing, borehole and geophysical data, in conjunction with field structural information, indicate a continuous faulting process since the Miocene which has reactivated Cretaceous faults and Precambrian shear zones or in places generated new faults which cut across existing structures. Three main sets of faults are recognised across the area: a NE-striking set, a NW-striking set and a N-striking set. The first and the second sets are pervasive and their cross-cutting relationships show that they locally form a conjugate set and display both a strike-slip and a dip-slip component of movement. They have generated troughs filled by as much as 260 m of Cainozoic sediments. Radiocarbon dating shows that some of the faults slipped as recently as 4,041-3,689 cal. yr BP. Although the elevation of coastal deposits is consistent with the predictions of glacioisostatic models for the area, tectonic influence can be detected notably near the Carnaubais fault, where rapid emergence by at least 5 m to the east of Sao Bento occurred 4,080-2,780 cal. yr BP. Secondary ground failure, which includes hydroplastic deformation, liquefaction and landslides, can be seen in Quaternary alluvial sediments and is reported in the historical record. The present data show that the potential for large earthquakes in northeastern Brazil has been underestimated. Empirical relationships using liquefaction and surface rupture point to events of at least Ms=6.8 compared to a maximum mb = 5.2 recorded instrumentally. The finding that NE- and NW-trending faults are favourably orientated for reactivation in relation to the current stress field is of potential value for seismic

  10. Policing violence in Brazil.

    Science.gov (United States)

    Sena, E

    1999-03-01

    This article is an excerpted summary of a speech on female police and domestic violence. The speech was given by a woman affiliated with the Association of Women Workers at an Oxfam workshop in northern Brazil. This organization successfully lobbied for female police, which resulted in more reports of domestic violence, especially rape. The organization is active in 13 counties. Female police are trained and usually given respect by police chiefs. In one city, in 1997, the appointment of female police resulted in registered reports of 387 cases of violence and hospital reports of 503 cases, of which 14% were child rape. During January-April 1998, there were 126 registered cases and 168 hospital cases. Policewomen formed a partnership over the past 2 years with the Human Rights Group and other popular political groups to train female police about laws. The compulsory course focused on four areas: legal concepts, penalties, and procedures on registration of complaints; the Brazilian Penal Code; civil law; and world judicial bureaucracies. Training includes a 1 month internship with the program's lawyer. Over 20 women have completed the course to date. Training in some cases resulted in greater expertise among the female police than their Police Chiefs. Female police have experienced harassment by local authorities.

  11. Chuvas extremas e desordenamento do território na construção do risco: um estudo de caso no município de Cabaceiras-Paraíba (Brasil

    Directory of Open Access Journals (Sweden)

    Eliamin Eldan Queiroz Rosendo

    2015-08-01

    Full Text Available In underdeveloped countries, the late industrial revolution brought new configurations of urban space. In many cases, in combination with climatic phenomena, a lack of regional planning and social and environmental vulnerabilities, these configurations contributed to the creation of a landscape of risk. Given this context, the aim of this work was to analyze the environmental characteristics of the city of Cabaceiras in Paraíba, Brazil, which is located in a semiarid region but has been affected by floods. The following methodological procedures were used: historical and literature-based background research, the use of climate data, the use of geographical information systems (GIS through remote sensors, and field visits. Observations indicated that the devastation of the savannah, desertification, soil type, urbanization processes, an unfortunate rainfall distribution, and dysfunction in governance exacerbated the flooding phenomena in this city.

  12. Structure and dynamics of phytoplankton community in the Botafogo reservoir-Pernambuco-Brazil

    Directory of Open Access Journals (Sweden)

    Giulliari Alan da Silva Tavares de Lira

    2009-04-01

    Full Text Available The aim of the present study was to investigate the structure and dynamics of the phytoplankton in the Botafogo reservoir-PE-Brazil. Phytoplankton assemblages were identified from current literature and density was estimated using an inverted microscope. Concurrently to the sampling of biotic variables, measurements of abiotic parameters, such as water temperature, dissolved oxygen and pH, were determined using field probes and transparency was determined with a Secchi disk. Total phosphorus and total nitrogen concentrations were determined in laboratory. A total of 24 taxa were identified. Chlorophyta presented the greatest number of species. Species diversity in the reservoir was low throughout the study period. Principal component analysis revealed that Trachelomonas volvocina, Chlorella vulgaris, Euglena sp. and Peridinium gatunense were directly correlated with oxygen, turbidity and total nitrogen; Planktosphaeria gelatinosa, P. gatunense and Euglena sp. were directed correlated with total nitrogen; rainfall explained the occurrence of Monoraphidium arcuatum and Chlorella vulgaris.O objetivo do presente estudo foi investigar a estrutura e dinâmica do fitoplâncton no reservatório de Botafogo-PE-Brasil. A comunidade fitoplanctônica foi identificada com literatura atualizada e a densidade estimada usando microscópio invertido. Concomitantemente as coletas das variáveis bióticas, foram medidos alguns parâmetros abióticos como temperatura da água, oxigênio dissolvido, condutividade e pH usando sondas de campo e transparência com disco de Secchi. Concentrações de fósforo total e nitrogênio total foram determinados em laboratório. Vinte e quatro táxons foram identificados tendo Chlorophyta apresentado maior número de espécie. A diversidade de espécie no reservatório foi baixa durante todo o período de estudo. A análise de componentes principais mostrou que Trachelomonas volvocina, Chlorella vulgaris, Euglena sp. e

  13. Brazil, China, US: a triangular relation?

    Directory of Open Access Journals (Sweden)

    José-Augusto Guilhon-Albuquerque

    2014-01-01

    Full Text Available This article is divided in three sections. The first one explores the so-called "strategic partnership" between Brazil and China. In the second section we shall examine how US-China relations in the global system could affect both Brazil-US, and Brazil-China bilateral relations. A final section presents some recommendations for Brazil strategic orientations regarding the current systemic transition in the allotment of global power.

  14. Brazil: Mitigation and Adaptation to Climate Change

    OpenAIRE

    Carlos E. Ludeña; Maria Netto

    2011-01-01

    In order to understand the implications of GHG emissions reduction targets in the Brazilian economy it is important to understand the sector composition of these emissions in Brazil. According to the 2010 Second National Communications of Brazil to the UNFCCC, in 2005, the majority of Brazil's emissions (87.2%) corresponded to carbon dioxide (CO2) emissions.

  15. Country watch: Brazil.

    Science.gov (United States)

    Szterenfeld, C

    1995-01-01

    The Health in Prostitution Project was launched in 1991 in Rio de Janeiro, Brazil. The project offers a multi-year training program of health education designed to both fight the stigmatization of and violence against commercial sex workers and enhance their self-esteem, self-determination, and access to civil rights. The project therefore promotes individual awareness while influencing public opinion and policies. At first, health agents were recruited among women and transvestites who work in street-based sex work. The program was then gradually expanded to include young male sex workers and other locations, such as private parlors, saunas, and escort services. People of all sexes and sexual orientation now comprise the health agent group. The program has a paid staff of five women, three young men, and three transvestites, and approximately 70 sex workers are trained annually. Basic training includes topics such as human sexuality, personal risk assessment, HIV/STD infection, negotiation of safer sex, and STD referral services. Year two training emphasizes reproductive and women's health issues, while year three courses prioritize street work methodologies. Theatrical performances, speaking English as a second language, and performing Bach flower therapy for clients take place during the fourth year. Program trainers include medical specialists, nurses, psychologists, health educators, lawyers, and university students. At least half of the 350 health agents trained thus far are estimated to be currently engaged in paid or voluntary prevention work. Two surveys with female sex workers in 1991 and 1993 found that reported regular condom use increased from 57% to 73%; the health agents are having an effect. The program is constantly evaluated and revised.

  16. Zika virus outbreak in Brazil.

    Science.gov (United States)

    Heukelbach, Jorg; Alencar, Carlos Henrique; Kelvin, Alyson Ann; de Oliveira, Wanderson Kleber; Pamplona de Góes Cavalcanti, Luciano

    2016-02-28

    Zika virus (ZIKV) infection is spreading rapidly within the Americas after originating from an outbreak in Brazil. We describe the current ZIKV infection epidemic in Brazil and the neurological symptoms arising. First cases of an acute exanthematic disease were reported in Brazil's Northeast region at the end of 2014. In March 2015, autochthonous ZIKV was determined to be the causative agent of the exanthematic disease. As cases of neurological syndromes in regions where ZIKV, dengue and/or Chikungunya viruses co-circulate were reported, ZIKV was also identified in the cerebrospinal fluid of patients with acute neurological syndromes and previous exanthematic disease. By the end of September 2015, an increasing number of infants with small head circumference or microcephaly were noted in Brazil's Northeast which was estimated to be 29 cases between August and October. ZIKV was identified in blood and tissue samples of a newborn and in mothers who had given birth to infants with microcephaly and ophthalmological anomalies. In 2015, there were an estimated 440,000 - 1,300,000 Zika cases in Brazil. There have been 4,783 suspected cases of microcephaly, most of them in the Northeast of Brazil associated with 76 deaths. The Ministry of Health is intensifying control measures against the mosquito Aedes aegypti and implemented intensive surveillance actions. Further studies are needed to confirm the suspected association between ZIKV infection and microcephaly; to identify antiviral, immunotherapy, or prophylactic vaccine; to introduce diagnostic ELISA testing. Clinical and epidemiological studies must be performed to describe viral dynamics and expansion of the outbreak.

  17. Modelagem da proteção do solo por plantas de cobertura no sul de Minas Gerais = Modeling of soil protection by cover crops in southern Minas Gerais, Brazil.

    Directory of Open Access Journals (Sweden)

    Diego Antonio França de Freitas

    2012-08-01

    Full Text Available A cobertura do solo é o fator de maior importância relativa no controle da erosão hídrica. Assim, objetivou-se no presente estudo elaborar a modelagem da cobertura vegetal de vinte e quatro plantas de cobertura, em diversos sistemas de plantio e históricos de uso, com potencial para cultivo no Sul de Minas Gerais. Para avaliação da cobertura vegetal foram realizadas avaliações no campo utilizando uma régua de classificação da cobertura vegetal, sendo o delineamento experimental inteiramente casualizado, com três repetições, utilizado neste experimento. As plantas cultivadas sobre a palhada de feijãoirrigado apresentaram alto índice de cobertura do solo, o que pode estar relacionado à maior disponibilidade de nutrientes deixado por esta cultura na palhada e a maior reserva de água no solo, promovido pela irrigação do feijão. O milheto cultivado em nível e sobre a palhada de milheto e feijão-de-porco apresentou o menor índice de cobertura entre as plantas testadas. Na região sul de Minas Gerais os padrões de chuvas ocorrem em maior quantidade nos períodos de outubro a março, com elevação em dezembro e janeiro. Neste período o solo deve estar protegido do impacto da gota de chuva, pois o risco de erosão hídrica é maior. Assim, a utilização das plantas de cobertura é de grande importância, pois estas protegem o solo do impacto direto dasgotas de chuvas e diminuem os picos de temperatura do solo, sendo que estas devem ser cultivadas, preferencialmente, sobre a palhada de feijão.The ground cover is the most important factor relative to control erosion. Thus, the objective of this study was to develop a model plant cover for 24 cover crops used in several cropping systems and historical use, with potential for cultivation in southern Minas Gerais State, Brazil. To evaluate the vegetation cover field assessments using the strip land cover classification. A completely randomized design with three replications was

  18. Oral health policies in Brazil

    Directory of Open Access Journals (Sweden)

    Gilberto Alfredo Pucca Junior

    2009-06-01

    Full Text Available Since Oral Health policies in Brazil have been constructed according to circumstances and possibilities, they should be understood within a given context. The present analysis contextualizes several issues of the Brazilian Oral Health Policy, called "Smiling Brazil", and describes its present stage of development. Today it involves re-organizing basic oral health care by deploying Oral Health Teams within the Family Health strategy, setting up Centers of Dental Specialists within an Oral Health network as a secondary care measure, setting up Regional Laboratories of Dental Prosthesis and a more extensive fluoridation of the public water supply.

  19. Evaluating School Facilities in Brazil

    Science.gov (United States)

    Ornstein, Sheila Walbe; Moreira, Nanci Saraiva

    2008-01-01

    Brazil's Sao Paulo Metropolitan Region is conducting a performance evaluation pilot study at three schools serving disadvantaged populations. The objective is first to test methods which can facilitate Post Occupancy Evaluations (POEs) and then to carry out the evaluations. The preliminary results are provided below.

  20. [Nuptiality among Brazil's black population].

    Science.gov (United States)

    Berquo, E

    1987-08-01

    Data from a three percent sample of the 1980 census of Brazil are used to analyze nuptiality trends by ethnic group. The focus is on the homogamy of marriage by color and age and on the marriage patterns of the black population.

  1. Brazil and CERN get closer

    CERN Multimedia

    2002-01-01

    The map of countries affiliated to CERN may in future include Brazil. On a visit to CERN last week, the Brazilian Minister of State for Science and Technology, Ronaldo Mota Sardenberg, expressed his country's interest in closer links to the Laboratory.   Luciano Maiani and the Brazilian Minister of State for Science and Technology Ronaldo Mota Sardenberg shake hands on CERN-Brazil co-operation. During his visit, the Minister and CERN Director General Luciano Maiani issued a joint statement for the continuation of a Co-operation Agreement first established in 1990. They also agreed to study the possibility of Brazil joining CERN-led Grid computing infrastructure projects. Brazilian physicists are already involved in the LHCb, ATLAS and CMS experiments. At the conclusion of the Minister's visit, he and Director-General Maiani agreed to establish a Working Group to examine ways of strengthening Brazil's links with CERN, and to prepare the way for a Brazilian request to CERN Council to become an Observer at th...

  2. Brazils Rise to Global Power

    Science.gov (United States)

    2014-06-01

    Família, Real Plan, BRIC , Export Oriented Growth, Import Substitution Industrialization, South-South cooperation. 15. NUMBER OF PAGES 113 16...61 F. CAPABILITIES COMPARED TO BRIC ..................................................62 1. India...Desenvolvimento Econômico e Social BRIC Brazil, Russia, India, China EU European Union FTA Free Trade Agreement G8 Group of Eight G20 Group of Twenty GNP

  3. Corruption - Can Brazil win this war?

    OpenAIRE

    Washington de Queiroz, Jorge

    2015-01-01

    Corruption in Brazil is endemic and has increased since the end of the military transition regime in 1985, a year marked by an indirect presidential election, which was followed by the 1988 Constitutional Reform. The present thesis answers the research question of how corruption affects well-being in Brazil" by investigating the existing cause-effect relationships and complex dynamics and logic between corruption and related variables in Brazil, with each of the twenty-s...

  4. Abortion in Brazil: A Search For Rights

    OpenAIRE

    Anjos, Karla Ferraz dos; Universidade Estadual do Sudoeste da Bahia; Santos, Vanessa Cruz; Universidade Estadual do Sudoeste da Bahia; Souzas, Raquel; Universidade Federal da Bahia; Eugênio, Benedito Gonçalves; Universidade Estadual do Sudoeste da Bahia

    2013-01-01

    Discussing the abortion theme in Brazil is highly problematic since it involves ethical, moral and legal precepts. The criminalization of abortion in Brazil favors a clandestine and unsafe practice and can lead to serious consequences to women´s health. In this perspective, this research deals with the legal context in which the abortion problem is inscribed in Brazil, coupled to the specific aims in pinpointing complications caused by the criminalization of clandestine abortion besides deali...

  5. Spherical tokamak development in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Ludwig, G.O.; Del Bosco, E.; Ferreira, J.G.; Berni, L.A.; Oliveira, R.M.; Andrade, M.C.R.; Shibata, C.S.; Ueda, M.; Barroso, J.J.; Castro, P.J. [Instituto Nacional de Pesquisas Espaciais (INPE), Sao Jose dos Campos, SP (Brazil). Lab. Associado de Plasma; Barbosa, L.F.W. [Universidade do Vale do Paraiba (UNIVAP), Sao Jose dos Campos, SP (Brazil). Faculdade de Engenharia, Arquitetura e Urbanismo; Patire Junior, H. [Instituto Nacional de Pesquisas Espaciais (INPE), Sao Jose dos Campos, SP (Brazil). Div. de Mecanica Espacial e Controle; The high-power microwave sources group

    2003-12-01

    This paper describes the general characteristics of spherical tokamaks, or spherical tori, with a brief overview of work in this area already performed or in progress at several institutions worldwide. The paper presents also the steps in the development of the ETE (Experimento Tokamak Esferico) project, its research program, technical characteristics and operating conditions as of December, 2002 at the Associated Plasma Laboratory (LAP) of the National Space Research Institute (INPE) in Brazil. (author)

  6. Spherical tokamak development in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Ludwig, Gerson Otto; Bosco, Edson Del; Ferreira, Julio Guimaraes [Instituto Nacional de Pesquisas Espaciais (INPE), Sao Jose dos Campos, SP (Brazil). Lab. Associado de Plasma] (and others)

    2003-07-01

    The general characteristics of spherical tokamaks, or spherical tori, with a brief view of work in this area already performed or in progress at several institutions worldwide are described. The paper presents also the steps in the development of the ETE (Experiment Tokamak spheric) project, its research program, technical characteristics and operating conditions as of December, 2002 a the Associated Plasma Laboratory (LAP) of the National Space Research Institute (INPE) in Brazil. (author)

  7. National epilepsy movement in Brazil

    OpenAIRE

    P T Fernandes; Noronha, A. L. A.; Sander, J. W.; L. M. Li

    2007-01-01

    Purpose: To establish a social network of epilepsy lay organization in Brazil to provide advocacy for people with epilepsy and eventually forma powerful National Epilepsy movement. Method.-We actively searched for any associations, support groups or organizations related to epilepsy in the country by personal contacts, internet search and by telephone search. Contact was then established with any entity found. Results: The first meeting was held in Campinas in March 2003, and was attended by ...

  8. Brazil-U.S. Relations

    Science.gov (United States)

    2009-06-03

    Currently at least ten bilateral mechanisms are in place through which U.S. and Brazilian government and business leaders interface on issues of...base, 430 kilograms of crack cocaine, 182 metric tons of marijuana, 12 kilograms of heroin, 125,706 dosage units of ecstasy , and 95,653 dosage units of...States continue to work together to address intellectual property issues, primarily through the U.S.-Brazil Bilateral Consultative Mechanism and the

  9. Brazil, A Potential World Power?

    Science.gov (United States)

    1966-04-22

    inadequate transportation system. Much of the difficulty in exploiting the great natural wealth of the country has been the direct result of a poor ...exploding birth rate and high infant mortality; great wealth and degrading poverty . Much of the poverty and high mortality can be attributed to a vicious...circle of poverty creating ignorance and ignorance creating poverty . Brazil’s population is about 80 million and has been increas- ing at the rate of

  10. Brazil's Economy:Too Hot

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    @@ Brazil has a lot to be proud of.A decade of faster growth and progressive social policies has brought a prosperity that is ever more widely shared.The unemployment rate for April, at 6.4%, is the lowest on record.Credit is booming, particularly to the swelling numbers who have moved out of poverty and into the middle class.Income inequality, though still high, has fallen sharply.For most Brazilians life has never been so good.

  11. Decentralization and REDD+ in Brazil

    Directory of Open Access Journals (Sweden)

    Fabiano Toni

    2011-01-01

    Full Text Available Recent discussions on REDD+ (Reducing Emissions from Deforestation and Forest Degradation, plus conservation, sustainable management of forests and enhancement of forest carbon stocks have raised optimism about reducing carbon emissions and deforestation in tropical countries. If approved under the United Nations Framework Convention on Climate Change (UNFCCC, REDD+ mechanisms may generate a substantial influx of financial resources to developing countries. Some authors argue that this money could reverse the ongoing process of decentralization of forest policies that has spread through a large number of developing countries in the past two decades. Central states will be accountable for REDD+ money, and may be compelled to control and keep a significant share of REDD+ funds. Supporters of decentralization argue that centralized implementation of REDD+ will be ineffective and inefficient. In this paper, I examine the relation between subnational governments and REDD+ in Brazil. Data show that some state governments in the Brazilian Amazon have played a key role in creating protected areas (PAs after 2003, which helped decrease deforestation rates. Governors have different stimuli for creating PAs. Some respond to the needs of their political constituency; others have expectations to boost the forest sector so as to increase fiscal revenues. Governors also have led the discussion on REDD+ in Brazil since 2008. Considering their interests and political power, REDD+ is unlikely to curb decentralization in Brazil.

  12. Perdas de carbono e nitrogênio com aplicação de dejeto líquido bovino em latossolo muito argiloso sob plantio direto e chuva natural Carbon and nitrogen losses with liquid catlle manure from a clayey oxissol under no-till and natural rainfall

    Directory of Open Access Journals (Sweden)

    Adriana Timofiecsyk

    2012-12-01

    Full Text Available O transporte de poluentes via escoamento superficial em áreas agrícolas, principalmente na forma solúvel, é considerado um problema ambiental, mesmo em sistemas conservacionistas de preparo do solo. O objetivo deste trabalho foi avaliar as perdas de carbono orgânico e nitrogênio no escoamento superficial, com a aplicação de 0, 60, 120 e 180 m³ ha-1 ano-1 de dejeto líquido bovino, em Latossolo muito argiloso, com declividade de 10 %, sob plantio direto e chuva natural, na região de Castro - PR. A aplicação do dejeto líquido bovino não alterou o carbono orgânico total, porém diminuiu as perdas de amônio e nitrato até a dose de 120 m³ ha-1 ano-1, o que indica ser esta a dose máxima recomendada para solo muito argiloso, declive moderadamente ondulado, baixas precipitações e com no mínimo uma semana de intervalo entre a aplicação do dejeto e a ocorrência de chuvas. As concentrações médias ponderadas de amônio e nitrato no escoamento superficial aumentaram com a aplicação de dejeto. As concentrações de amônio estiveram muito acima do máximo permitido pela legislação brasileira, inclusive sem aplicação de dejeto, o que indica a necessidade de práticas que evitem a entrada do escoamento em corpos de água, mesmo em sistemas conservacionistas.The transport of pollutants via runoff in agricultural areas, mainly in soluble forms, is an environmental problem, even in conservation tillage systems. The objective of this study was to evaluate losses of nitrogen and organic carbon in runoff, after applications of 0, 60, 120, and 180 m³ ha-1 yr-1 of cattle slurry to a clayey Oxisol, with 10 % slope under no-tillage and natural rainfall, in the region of Castro - PR. The application of cattle slurry did not affect total organic carbon in runoff but ammonium and nitrate losses were reduced by the fertilization with 120 m³ ha-1 yr-1 of slurry, indicating this as the maximum dose recommended for soils with a high clay

  13. Análise Espacial com SIG de Parâmetros Ambientais e Comportamento Hidrológico (Chuva-Vazão de uma Bacia de drenagem Montanhosa na Serra Dos Órgãos: Bacia Do Paquequer, Município De Teresópolis, RJ.

    Directory of Open Access Journals (Sweden)

    Carla Semiramis Silveira

    2007-11-01

    Full Text Available Este trabalho tem como objetivos principais apresentar e analisar, por meio de Sistema de Informação Geográfica, a distribuição espacial dos parâmetros ambientais, na escala 1:50.000, e discutir a possível influência destes na dinâmica hidrológica de chuvavazão da bacia do Paquequer. Este rio (5ª ordem, 30 km de comprimento nasce na Serra dos Órgãos e drena 269 km2 para o vale do Paraíba do Sul. A pluviosidade anual varia de 1500 mm a jusante da bacia até mais de 3000 mm na cabeceira e as chuvas predominam no verão. Em 1996, a vegetação da bacia era composta por um mosaico de diferentes estágios de sucessão ecológica até Floresta Ombrófila Densa - Mata Atlântica, em fragmentos de diferentes tamanhos, e 25 % da área com uso urbano/rural. Na bacia ocorrem 3 unidades geológicas (Granito Teresópolis, Batólito Serra dos Órgãos (gnaisse e Unidade Rio Negro (migmatito. Os afloramentos rochosos (5 % da área são importantes feições da paisagem (principalmente no Granito Teresópolis. As unidades estão sobrepostas por colúvios, colúvios ricos em blocos, elúvio e pouca quantidade de depósitos aluvionares. Os Cambissolos são dominantes, com poucos Latossolos (preferencialmente associados a Unidade Rio Negro e Gleissolos nos vales. Uma coletânea, unificação e análise das relações espaciais dos dados de geologia, solos, declividade, formação superficial, hidrografia, vegetação e uso mapeados pelo projeto Teresópolis (UERJ/IBGE foi elaborada por intermédio do ArcGis Desktop 9.2. Os resultados do SIG apontam que a geologia da bacia condiciona diferentes paisagens. No Granito Teresópolis as classes de maior declividade, os afloramentos rochosos e os colúvios com blocos têm maior significado. As classes Gleissolo e Latossolo adquirem importância significativa na unidade Rio Negro. A investigação por meio de GPR e granulometria de uma sub-bacia identificou padrões geofísicos e granulom

  14. Seasonality of insects in the semi-arid Caatinga of northeastern Brazil Sazonalidade de insetos na Caatinga do Nordeste Brasileiro

    Directory of Open Access Journals (Sweden)

    Alexandre Vasconcellos

    2010-01-01

    Full Text Available Insects are essential to tropical ecosystems functioning. In semi-arid regions, the increase in abundance and/or activity (e.g. reproduction and foraging behavior of insects is usually associated with climatic variables. The present study investigates which climatic variables are best predictors of insect abundance in an area of Caatinga in northeastern Brazil. Individuals were sampled for 24 months using Malaise and pitfall traps, and beating trays. A total of 58925 individuals belonging to 20 insect orders were collected. The most abundant orders were Hymenoptera, Diptera, Collembola and Coleoptera. Most orders studied showed a clear maximum abundance in the rainy season. Rainfall and humidity were the best predictors of insect abundance in the Caatinga. However, no climatic variable could explain Psocoptera and Blattodea variance in abundance/activity. Our results suggest that climatic changes associated with rainfall patterns in the Caatinga may affect ecosystem processes and services that depend direct or indirectly on insect abundance/activity.Os insetos são abundantes e essenciais para o funcionamento dos ecossistemas terrestres tropicais. No entanto, a abundância e/ou atividade (e.g. reprodução ou forrageio destes organismos podem ser fortemente influenciadas pelas variáveis climáticas. Este estudo examina quais as variáveis climáticas podem atuar como preditoras da abundância e/ou atividade dos insetos em uma área de Caatinga do Nordeste brasileiro. Ao longo de 24 meses, os insetos foram coletados mensalmente utilizando armadilhas Malaise, armadilhas tipo "pitfall" e guarda-chuva entomológico. Um total de 58925 indivíduos de 20 ordens foi coletado. As ordens mais abundantes foram Hymenoptera, Diptera, Collembola e Coleoptera. Entre as doze ordens mais abundantes, dez apresentaram os seus maiores picos durante a estação chuvosa. A precipitação e a umidade relativa foram os principais preditores dos padrões de abund

  15. Previsões meteorológicas do Modelo Eta para subsidiar o uso de modelos de previsão agrícola no Centro-Sul do Brasil Eta model forecasts as input to crop models for the Mid-Southern region of Brazil

    Directory of Open Access Journals (Sweden)

    Pedro Abel Vieira Junior

    2009-04-01

    Full Text Available Este trabalho tem por objetivo avaliar a precipitação pluvial e as temperaturas máximas e mínimas previstas pelo Modelo Eta para até 120 dias de previsão em 24 localidades distribuídas na região Centro-Sul do Brasil. A avaliação se baseia na comparação de séries históricas de chuva e temperaturas de 1997 a 2002, com as previsões de 30, 60 e 120 dias de antecedência do Modelo Eta para as 24 localidades. Foram utilizados valores de média, mediana e desvio padrão nesta avaliação. Os resultados indicam que estas previsões geralmente subestimam as chuvas e a amplitude térmica nestas localidades. Os menores erros de precipitação pluvial se localizam mais destacadamente em Itumbiara e Rio Verde, enquanto que os maiores, em Porangatu e Manduri. Por outro lado, os menores erros de temperatura máxima se localizam destacadamente em Brasília, Manduri e Piracicaba, enquanto que os maiores ocorrem em Barreiras e Porangatu. Apesar de o modelo apresentar erros sistemáticos nas previsões de temperaturas, estes erros podem ser removidos para que os valores corrigidos possam ser introduzidos nos modelos de culturas.The objective of this study was to evaluate the 120-day precipitation and maximum and minimum temperature forecasts by Eta Model over 24 locations around the Mid-Southern of Brazil. The evaluation was based on comparing observed time series of precipitation and temperatures from 1997 to 2002 to 30, 60 and 120-day forecasts of Eta Model over these 24 locations. Mean, median and standard deviation were used in the evaluation. The results show that these forecasts generally underestimate rain and temperature range. The smallest precipitation errors occurred in Itumbiara and Rio Verde, whereas the largest errors occurred in Porangatu and Manduri. The smallest maximum temperature errors occurred in Brasília, Manduri and Piracicaba whereas the largest errors in Barreiras and Porangatu. Despite the systematic errors exhibited by

  16. Uso do alimento por duas espécies simpátricas de Moenkhausia (Characiformes, Characidae em um riacho da Região Centro-Oeste do Brasil Food used by two sympatric species of Moenkhausia (Characiformes, Characidae, in a stream of center-western Brazil

    Directory of Open Access Journals (Sweden)

    Raffael M Tófoli

    2010-09-01

    Full Text Available Esse estudo avaliou sazonalmente a dieta de Moenkhausia dichroura (Kner, 1858 e M. sanctaefilomenae (Steindachner, 1907, coletadas em simpatria no riacho Cancela, Mato Grosso, Brasil. Independente do período hidrológico, alimentos de origem alóctone predominaram na dieta de ambas as espécies (>50% do total de itens consumidos, sendo insetos terrestres o recurso principal, embora, para M. dichroura insetos aquáticos tenham contribuído na dieta também. Hymenoptera (Formicidae foi o alimento mais consumido, sendo ambas as espécies caracterizadas como insetívoras terrestres. A dieta restrita dessas espécies é confirmada pelos baixos valores de amplitude de nicho trófico: Ba=0,26 para M. dichroura em ambos os períodos e Ba=0,41 no período de seca e 0,38 no período de chuva, para M. sanctaefilomenae. A sobreposição alimentar foi elevada no período de chuva (Ojk=0,75 e apresentou valor intermediário no período de seca (Ojk=0,41, evidenciando maior partilha do alimento entre as espécies neste período.This study evaluated the seasonality in the diet of Moenkhausia dichroura (Kner, 1858 and M. sanctaefilomenae (Steindachner, 1907, sympatric species of the Cancela stream, state of Mato Grosso, Brazil. Regardless of the seasonal period, allochthonous food source predominated in the diet of both species (>50% of all items consumed and among these terrestrial insects were the dominant resource. However, aquatic insects were important in the diet of M. dichroura as well. Hymenoptera (Formicidae was the dominant item to both species, thus they were characterized as terrestrial insectivorous. The restricted diet of these species is confirmed by the trophic niche breadth, whose values were in general low: Ba=0.26 to M. dichroura in both periods and Ba=0.41 and 0.38 in the dry and rainy period, respectively, to M. sanctaefilomenae. The feeding overlap was high in the rainy period (Ojk=0.75 and intermediate in the dry period (Ojk=0.41, showing

  17. Counseling in Brazil: Past, Present, and Future

    Science.gov (United States)

    Hutz-Midgett, Aida; Hutz, Claudio Simon

    2012-01-01

    This article describes counseling in Brazil, which is rooted in career and vocational guidance. Although considered a distinct discipline, counseling falls under the umbrella of psychology. The multicultural movement is gaining momentum in Brazil, and counselors are pioneers working with socioracial minority college students. This is an emerging…

  18. Higher Education Reform in Brazil: Reinforcing Marketization

    Science.gov (United States)

    de Siqueira, Angela C.

    2009-01-01

    Higher education in Brazil began based on institutions organized as isolated establishments, and mostly privately owned. Nonetheless, public institutions created as universities and developing research activities and other services became the desired ideal for higher education. The first educational institutions in Brazil were created in the…

  19. Rising Expectations in Brazil and Chile

    Science.gov (United States)

    Elacqua, Gregory; Alves, Fatima

    2014-01-01

    Two themes connect Brazil and Chile: one is economic success; the other is social unrest. Protests rocked cities across Brazil in June 2013, and in Chile, recent student protests turned violent. Yet living conditions in both nations are better now than they've ever been. Successful economic and social reforms over the last two decades have led to…

  20. Inequality and School Reform in Bahia, Brazil

    Science.gov (United States)

    Reiter, Bernd

    2009-01-01

    This article compares public and community schools in Salvador, the state capital of Bahia, Brazil. Based on quantitative data analysis and qualitative research conducted on-site during three research trips in 2001, 2003 and 2005, the author finds that Brazil's extreme inequality and the associated concentration of state power in a few hands stand…

  1. Rainfall erosivity in Brazil: A Review

    Science.gov (United States)

    In this paper, we review the erosivity studies conducted in Brazil to verify the quality and representativeness of the results generated and to provide a greater understanding of the rainfall erosivity (R-factor) in Brazil. We searched the ISI Web of Science, Scopus, SciELO, and Google Scholar datab...

  2. History of nuclear power in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Rosa, L.P.

    2006-07-15

    The 1973 energy crisis prompted the United States to suspend supplies of enriched uranium to the reactor being built in Brazil, Angra I. In 1975, the Brazil-Germany Nuclear Agreement was announced. The Programme was a failure. Today the Angra II nuclear reactor has been completed, the only reactor completed under the agreement with Germany. Brazil's last military President implemented the Parallel Nuclear Programme, which included uranium enrichment with the justification of developing the technology that had not been transferred through the Nuclear Agreement with Germany. In 1986, the existence of a deep shaft drilled by the Air Force was revealed. A Technical Report concluded that it had all the characteristics and dimensions required to test a nuclear bomb. Some years later, the Civilian Government acknowledged the existence of an underground nuclear explosion facility and symbolically sealed this shaft. The situation in Brazil has improved recently. Brazil ratified the Treaty of Tlatelolco on the denuclearisation of Latin America and established ABACC, an agency handling mutual inspections of nuclear facilities in Brazil and Argentina. Brazil also signed the Nuclear Weapons Non-Proliferation Treaty. The uranium enrichment activities are being transferred to a civilian industry. More importantly, I do not believe that the uranium enrichment project is intended to endow Brazil with the capacity to produce nuclear weapons. (author)

  3. Brazil = Brasil. America = Las Americas [Series].

    Science.gov (United States)

    Toro, Leonor; And Others

    Written for teachers to use with migrant children in elementary grades, this bilingual English/Spanish social studies resource booklet provides an encyclopedia-style overview of Brazil's history, geography, economy, and culture. Topics include Brazil's form of government; geographic regions; holidays; climate; people; music; carnaval celebration;…

  4. Popular Documentation and Communication Centres in Brazil.

    Science.gov (United States)

    Cardoso, Ana Maria P.

    1993-01-01

    Presents a study of the popular documentation and communication centers in Brazil which have developed to preserve the history of the struggles of the lower classes and to act as popular information services that fill information needs not met by traditional libraries. Social, economic, and political issues in Brazil are outlined. (Contains 10…

  5. US and Brazil: Prospective National Security Partners

    Science.gov (United States)

    2001-01-01

    Chapter 5, “National Security,” data as of April 1997. Maxwell, Kenneth. “George W., King Canute , and Brazil,” Article published by Council on Foreign...22. [22] Kenneth Maxwell, “George W., King Canute , and Brazil,” article published by Council on Foreign Relations, 15 Dec 2000. (Hereafter referred

  6. Rising Expectations in Brazil and Chile

    Science.gov (United States)

    Elacqua, Gregory; Alves, Fatima

    2014-01-01

    Two themes connect Brazil and Chile: one is economic success; the other is social unrest. Protests rocked cities across Brazil in June 2013, and in Chile, recent student protests turned violent. Yet living conditions in both nations are better now than they've ever been. Successful economic and social reforms over the last two decades have…

  7. Population structure and reproduction of Deuterodon langei travassos, 1957 (Teleostei, Characidae in a neotropical stream basin from the Atlantic Forest, Southern Brazil

    Directory of Open Access Journals (Sweden)

    Jean Ricardo Simões Vitule

    2008-12-01

    Full Text Available Aspects of the biology of D. langei were studied at different sites along a longitudinal gradient formed by the Ribeirão stream basin, a Neotropical stream of the Atlantic Forest, southern Brazil. Differences were observed in population structure and reproduction along the longitudinal gradient and during the study period. Juvenile fishes occurred in high abundance, mainly in the downstream site after the rainy months. Adults occurred mainly in the intermediate and upstream sites. During their life cycle, adults optimise their reproductive strategy by concentrating the reproductive period with total spawn in a short time interval before summer rains dragged the juvenile, larval forms and/or eggs downstream. The downstream site was characterized by a wide range of microhabitats (ex. submerged grass and shallow flooded area. Thus, the species used different portions of the basin in distinct stages of its life, being ecologically adapted to variation patterns in its temporal and physical environments.Aspectos da biologia de D. langei foram estudados em diferentes locais da bacia do rio Ribeirão, um riacho litorâneo da Floresta Atlântica do sudeste do Brasil. Foram observadas diferenças na estrutura da população e na reprodução, ao longo do gradiente longitudinal da bacia e do período de estudo. Os peixes juvenis ocorreram em grande abundância, principalmente no trecho a jusante da bacia, após os meses mais chuvosos. Adultos ocorreram principalmente nos trechos intermediários e a montante. Não houve diferença significativa na relação sexual entre os locais amostrados, estações do ano, meses e classes de comprimento. O comprimento médio de primeira maturação (L50 foi o mesmo para machos e fêmeas, entre 6,1 e 7,0 cm de comprimento total (Lt. O período reprodutivo foi curto (entre o final da primavera e início do verão, antes dos meses mais chuvosos, com desova total. O Índice de Atividade Reprodutiva (IAR indicou que D

  8. Geodiversity and geoconservation in Brazil

    Science.gov (United States)

    Cardozo Moreira, Jasmine; Muggler, Cristine Carole

    2014-05-01

    Brazil is a large country with a wide diversity of landscapes and geological features and has been an important world producer of mineral resources. Despite this, until the 90's of last century, there has not been much concern and policies about geological heritage and geoconservation. Only at the end of the century the National Geological Service (CPRM) included the physical characterization of areas with geotouristic interest in its mission of generation and diffusion of geological information. In 1997, was created the Brazilian Commission of Geological and Paleobiological Sites (SIGEP, http://sigep.cprm.gov.br), responsible for the assessment, description and publicizing the sites of geological heritage. This is by now the most comprehensive and relevant initiative to protect the national heritage. It is composed by a fully accessible national database composed by 167 certified sites presented as scientific papers. Furthermore, a web-based applicative for the inventory and protection of geological heritage sites is being developed by the National Geological Service. The wider knowledge about geological heritage can be a useful tool for its conservation and this has been an important goal in the creation of protected areas, by means of environmental education and tourism. In Brazil, actions, research and publications about the subject have increased in the last five years, as well as the outreach and responsible use of the geological heritage. Scientific meetings, conferences and courses are growing and spreading around the country. The main scientific meeting has been the Brazilian Symposium of Geological Heritage that in its second edition (2013) had more than 200 papers presented. At that meeting it was also created the Association in Defence of the Geomining Heritage and the Association of Aspiring Geoparks. Brazil has only one geopark in the Unesco's Global Geopark Network, that is the Araripe Geopark, created in 2006. By the moment, propositions are being

  9. H3 internationalization to Brazil

    OpenAIRE

    2012-01-01

    A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics h3 is a Portuguese firm competing in the fast food market with a hamburger gourmet concept. The firm is now a strong player in Portugal (39 stores); Poland, Warsaw (1 store); Spain, Madrid (1 store) and Brazil, São Paulo (2 stores). As a result of their successes in the domestic market, internationalization was a natural step. One o...

  10. Brazil ALDF System Error Analysis

    Science.gov (United States)

    Rompala, John T.

    1999-01-01

    In a cooperative effort among: the Global Hydrology Climate Center (GHCC) of NASA's Marshal Space Flight Center (MSFC), the Atmospheric Electric Group of the Brazilian National Institute of Space Research, the University of San Paulo (USP), and the Brazilian National Institute of Meteorology (INME), a network of four lightning detectors has been established in Brazil's Rhondonian region. This paper surveys the efforts of GHCC researchers to develop algorithms and field procedures which reliable determine lightning strike locations based on site data comprised of the signal time of arrival, and radiated electromagnetic field.

  11. Previsões climáticas sazonais sobre o Brasil: avaliação do RegCM3 aninhado no modelo global CPTEC/COLA Seasonal climatic forecast over Brazil: evaluation of the RegCM3 model nested to the CPTEC/COLA global model

    Directory of Open Access Journals (Sweden)

    Rubinei Dorneles Machado

    2011-03-01

    Full Text Available Este trabalho avalia o desempenho de previsões sazonais do modelo climático regional RegCM3, aninhado ao modelo global CPTEC/COLA. As previsões com o RegCM3 utilizaram 60 km de resolução horizontal num domínio que inclui grande parte da América do Sul. As previsões do RegCM3 e CPTEC/COLA foram avaliadas utilizando as análises de chuva e temperatura do ar do Climate Prediction Center (CPC e National Centers for Enviromental Prediction (NCEP, respectivamente. Entre maio de 2005 e julho de 2007, 27 previsões sazonais de chuva e temperatura do ar (exceto a temperatura do CPTEC/COLA, que possui 26 previsões foram avaliadas em três regiões do Brasil: Nordeste (NDE, Sudeste (SDE e Sul (SUL. As previsões do RegCM3 também foram comparadas com as climatologias das análises. De acordo com os índices estatísticos (bias, coeficiente de correlação, raiz quadrada do erro médio quadrático e coeficiente de eficiência, nas três regiões (NDE, SDE e SUL a chuva sazonal prevista pelo RegCM3 é mais próxima da observada do que a prevista pelo CPTEC/COLA. Além disto, o RegCM3 também é melhor previsor da chuva sazonal do que da média das observações nas três regiões. Para temperatura, as previsões do RegCM3 são superiores às do CPTEC/COLA nas áreas NDE e SUL, enquanto o CPTEC/COLA é superior no SDE. Finalmente, as previsões de chuva e temperatura do RegCM3 são mais próximas das observações do que a climatologia observada. Estes resultados indicam o potencial de utilização do RegCM3 para previsão sazonal, que futuramente deverá ser explorado através de previsão por conjunto.This study presents an assessment of seasonal forecasts from the regional climate model RegCM3 nested to the CPTEC/COLA global model. The used RegCM3 version is 60 km horizontal resolution over an area that includes large part of South America. RegCM3 and CPTEC/COLA forecasts were evaluated using the rainfall and air temperature analyses from Climate

  12. Sandflies (Psychodidae: Phlebotominae survey in an urban transmission area of visceral leishmaniasis, Northeastern Brazil Pesquisa de flebotomíneos (Psychodidae: Phlebotominae em área urbana de transmissão de leishmaniose visceral no Nordeste do Brasil

    Directory of Open Access Journals (Sweden)

    Sthenia Santos Albano Amóra

    2010-12-01

    Full Text Available Visceral leishmaniasis (VL is a major public health challenge in Brazil, especially in states where it is endemic. The aim of this study was to investigate the relationship of sand fly population density with environmental variables (temperature, rainfall and relative humidity in urban areas of the city of Mossoró, Rio Grande do Norte, Northeastern Brazil. Sand flies were captured with Center Disease Control (CDC traps installed monthly in the intra and peridomicile of three houses. Data analysis was based on the chi-square test and linear regression. A total of 7,347 sand flies were captured, being 93.85% Lutzomyia longipalpis and 6.15% Lutzomyia evandroi. Sand flies were more commonly found in the peridomicile and there was no difference between the number of males and females. The variables rainy season as well as relative humidity and rainfall, alone or together, did not have an effect on sand fly population density. However, high temperatures had a negative effect. The study of the behavior of sand flies in specific units of endemic areas can provide input to public health authorities for planning appropriate VL vector control measures.A leishmaniose visceral (LV é um grande desafio para a saúde pública no Brasil, particularmente nos estados onde é endêmica. O objetivo deste estudo foi verificar a relação da densidade populacional de flebotomíneos com as variáveis ambientais (temperatura, precipitação de chuva e umidade relativa do ar em bairros urbanos de Mossoró, Rio Grande do Norte. Os flebotomíneos foram capturados com armadilhas CDC instaladas mensalmente no intra e peridomicílio de três casas. A análise dos dados foi baseada no teste Qui-quadrado e na regressão linear. Foram capturados 7.347 flebotomíneos, sendo 93,85% Lutzomyia longipalpis e 6,15% Lutzomyia evandroi. Os flebotomíneos foram encontrados mais comumente no peridomicílio e nenhuma diferença significativa entre o número de machos e fêmeas foi

  13. Nuclear research reactors in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Cota, Anna Paula Leite; Mesquita, Amir Zacarias, E-mail: aplc@cdtn.b, E-mail: amir@cdtn.b [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

    2011-07-01

    The rising concerns about global warming and energy security have spurred a revival of interest in nuclear energy, giving birth to a 'nuclear power renaissance' in several countries in the world. Particularly in Brazil, in the recent years, the nuclear power renaissance can be seen in the actions that comprise its nuclear program, summarily the increase of the investments in nuclear research institutes and the government target to design and build the Brazilian Multipurpose research Reactor (BMR). In the last 50 years, Brazilian research reactors have been used for training, for producing radioisotopes to meet demands in industry and nuclear medicine, for miscellaneous irradiation services and for academic research. Moreover, the research reactors are used as laboratories to develop technologies in power reactors, which are evaluated today at around 450 worldwide. In this application, those reactors become more viable in relation to power reactors by the lowest cost, by the operation at low temperatures and, furthermore, by lower demand for nuclear fuel. In Brazil, four research reactors were installed: the IEA-R1 and the MB-01 reactors, both at the Instituto de Pesquisas Energeticas Nucleares (IPEN, Sao Paulo); the Argonauta, at the Instituto de Engenharia Nuclear (IEN, Rio de Janeiro) and the IPR-R1 TRIGA reactor, at the Centro de Desenvolvimento da Tecnologia Nuclear (CDTN, Belo Horizonte). The present paper intends to enumerate the characteristics of these reactors, their utilization and current academic research. Therefore, through this paper, we intend to collaborate on the BMR project. (author)

  14. [Women and development in Brazil].

    Science.gov (United States)

    Cunha Neves, A

    1980-01-01

    This paper discusses the social, political and cultural status of women in Brazil. In 1976 only 29.6% of Brazilian women participated in economic activities; 54.3% of these were still employed as laborers in the countryside, while only 6% were employed in urban and industrial jobs. The greatest concentration of female labor is in the category of the very badly paid domestic employment. Man is traditionally the head of the family, even when he is not the breadwinner. Illiteracy has decreased in Brazil to 24.3%, but female analphabetism is 26.5% versus 21.9% male analphabetism. Schools are open to males and females at all levels, but the traditional and cultural structure of Brazilian society considers the home, not the school, as the only proper place for young girls, and maternity is still the primary social function of women. Politically Brazilian women have very little power, even if they make up 44% of the electoral body. Sex education does not exist in the school or in the home, and any sexuality exercised outside the bonds of marriage is considered as deviant.

  15. Homosexuality and adoption in Brazil.

    Science.gov (United States)

    Uziel, A P

    2001-11-01

    Western societies are undergoing legal and policy changes in relation to laws governing the family, marital status, sexual orientation and the welfare of children, including in Brazil where, in the 1990s, the rights of homosexuals were incorporated into ongoing debates about what constitutes a family. This paper discusses the issue of adoption of children by homosexual men in Brazil, using information from court records from 1995-2000 in Rio de Janeiro, and from interviews with two judges, five psychologists and four social workers who evaluate those wishing to adopt. It uses the case records of one man's application to adopt, in which homosexuality became a central issue. Both the construction of masculinity in relation to parenting and concepts of the family were the parameters upon which the decision to allow him to adopt or not depended. Because the legislation does not specify what the sexual orientation of would-be adoptive parents should be, it is possible for single persons to adopt if they show they can be good parents. As more single people, alone or in couples, seek to adopt, it is important to clarify the criteria for judicial decisions on adoption applications. A dialogue is therefore needed on the meaning of family and whether and how it relates to sexual orientation. It is only on this basis that the courts can take a clear decision as to whether being homosexual is a relevant issue in regard to applications to adopt or not.

  16. Lymnaea columella in northern Brazil

    Directory of Open Access Journals (Sweden)

    W. Lobato Paraense

    1983-12-01

    Full Text Available The occurrence of a mollusc of the family Lymnaeidae is recorded for the first time in Brazil north of parallel 15ºS, as a result of the finding of Lymnaea columella in Manus and Benjamin Constant, state of Amazonas. A description is given of its shell, renal organ, genital system and radula, pointing to the morphological characteristics of diagnostic value to separate it from two other species previously studied by the author, Lymnaea viatrix and L. rupestris, which also occur in Brazil.Pela primeira vez é verificada a ocorrência de um molusco da família Lymnaeidae ao norte do paralelo 15ºS no Brasil, como resultado do encontro da lYmnaea columella em Manus e Benjamin Constant, Estado do Amazonas. É apresentada uma descrição da concha, do órgão renal, do sistema genital e da rádula, sendo indicados os caracteres morfológicos que permitem distinguir a Lymnaea columella de outras espécies que também ocorrem no Brasil, previamente estudadas pelo autor, L. viatrix e L. rupestris.

  17. Brazil in the global energy world

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Frank D.; Vossoughi, Shapour [University of Kansas (KU), KS (United States)

    2012-07-01

    Brazil is the 10th largest energy consumer in the world and the third largest in the Western Hemisphere, behind the United States and Canada. Total primary energy consumption in Brazil has increased significantly in recent years; and over the past decade, Brazil has made great strides in increasing its total energy production, particularly oil. Brazil has the second-largest crude oil reserves in South America (behind Venezuela), and is one of the fastest growing oil producers in the world. According to United States Energy Information Administration (EIA), Brazil had 12.2 billion barrels of proven oil reserves in 2008. In 2007, Brazil's state owned Petroleo Brasileiro S.A. (PETROBRAS) announced that it had discovered an estimated 5-8 billion barrels of recoverable reserves (including both oil and natural gas) in the Tupi field, located in the Santos Basin. In 2008, subsequent discoveries were announced, to include Jupiter and Carioca (aka Sugar Loaf). Although PETROBRAS has yet to confirm the size of the discoveries, some industry analysts estimate the total extent of recoverable oil and natural gas reserves in the entire pre-salt layer have approached 40 to 80 billion barrels of oil equivalent. The reserves occur below a salt zone that is estimated to be 7,000 meters below the ocean surface. However, Brazil faces many challenges to recover the hydrocarbons to include technical, political, fiscal, and infrastructure hurdles. In spite of the challenges ahead, these discoveries transformed the nature and focus of Brazil's oil industry, economy, and future; and the potential impact of the pre-salt discoveries upon world oil markets is vast. The purpose of this paper is to discuss how the recent discoveries will affect Brazil's future and the impact it will have on the global energy world. (author)

  18. Wind / hydro complementary seasonal regimes in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Amarante, O.A.C. do [CAMARGO SCHUBERT Engenharia Eolica, Curitiba PR (Brazil); Schultz, D.J. [Companhia Paranaense de Energia (COPEL), Curitiba, PR (Brazil); Bittencourt, R.M. [CHESF - Companhia Hidro Eletrica do Sao Francisco, Recife PE (Brazil); Rocha, N.A. [PROMON Engenharia Ltda., Rio de Janeiro, RJ (Brazil)

    2001-08-01

    In the last decades, wind power generation has proven its suitability to the Gigawatt scale, necessary to an effective contribution to electric systems. This paper demonstrates, from existing data, the wind / hydro seasonal complementarity in the relevant areas of Brazil, and discusses its possible effect on the feasibility of seasonal stabilization of the energy supply in the Brazilian interconnected grid, taking advantage of the country's large natural resources available. Case studies for the southern/southeastern and the northeastern regions of Brazil are presented. A brief analysis is included regarding the geographic location of the interconnected grid, main hydro power plants, and estimated promising wind farm areas in Brazil. (orig.)

  19. The Significance of 2010 Iran-Turkey-Brazil Nuclear Deal for Turkey and Brazil

    Science.gov (United States)

    2014-12-01

    xii LIST OF ACRONYMS AND ABBREVIATIONS AKP Justice and Development Party AP Justice Party BASIC Brazil, South Africa, India, China BRICS ...of new international agencies such as BRIC , IBSA, and G20.233 Different from Cardozo, Lula prioritized cooperation with Asian and African states, in...multi-lateral networks such as: BRICS (Brazil, Russia, India, China, and South Africa), an economic group; IBSA (India, Brazil, South Africa,) an

  20. Physical, chemical and microbiological aspects during the dry and rainy seasons in a pond covered by macrophyte used in aquaculture water supply Aspectos físico-químicos e microbiológicos nas estações de seca e chuva em viveiro coberto por macrófitas usado no abastecimento de água para aquicultura

    Directory of Open Access Journals (Sweden)

    Samuel Generoso Dias

    2012-09-01

    Full Text Available AIM: The water quality of a pond covered by macrophytes and used as a water supply for aquaculture was evaluated during the dry and rainy seasons; METHODS: Six points were established for water sampling, at water inflow and outflow. Samplings were carried out monthly between June 2008 and May 2009; RESULTS: Inflow points P1, P2 and P3 in the pond had higher nutrient concentrations and high trophic rates. Moreover, capybaras in the area caused sediment suspension and an increase in fecal coliforms. There was significant difference (p OBJETIVO: O objetivo deste estudo foi avaliar durante as estações seca e estação chuvosa a qualidade da água de um viveiro, coberto por macrófitas, utilizado como sistema de abastecimento de água para aquicultura; MÉTODOS: Foram estabelecidos 6 pontos para a coleta das amostras de água na superfície do viveiro, envolvendo entradas e saídas da água. As coletas foram realizadas mensalmente entre junho de 2008 e maio de 2009; RESULTADOS: Os pontos P1, P2 e P3 devido à entrada de água no viveiro apresentaram maiores concentrações de nutrientes com elevado estado trófico e, a entrada de capivaras nestes locais promoveu a suspensão do sedimento e aumento de coliformes fecais. Há significativas diferenças (p < 0,05 nas concentrações de nutrientes na água entre seca e chuva, com o escoamento de água gerado pela precipitação carreando material do entorno do viveiro para a água; CONCLUSÕES: O sistema estudado sofre influência direta da precipitação e da ausência de manejo adequado da área do entorno. Durante a estação chuvosa a qualidade da água ficou comprometida com aumento da concentração de nutrientes, coliformes fecais e redução do oxigênio dissolvido na água, devido ao material alóctone proveniente da área ao redor do viveiro, afetando negativamente o sistema de abastecimento.

  1. Physical, chemical and microbiological aspects during the dry and rainy seasons in a pond covered by macrophyte used in aquaculture water supply Aspectos físico-químicos e microbiológicos nas estações de seca e chuva em viveiro coberto por macrófitas usado no abastecimento de água para aquicultura

    Directory of Open Access Journals (Sweden)

    Samuel Generoso Dias

    2012-01-01

    Full Text Available AIM: The water quality of a pond covered by macrophytes and used as a water supply for aquaculture was evaluated during the dry and rainy seasons; METHODS: Six points were established for water sampling, at water inflow and outflow. Samplings were carried out monthly between June 2008 and May 2009; RESULTS: Inflow points P1, P2 and P3 in the pond had higher nutrient concentrations and high trophic rates. Moreover, capybaras in the area caused sediment suspension and an increase in fecal coliforms. There was significant difference (p OBJETIVO: O objetivo deste estudo foi avaliar durante as estações seca e estação chuvosa a qualidade da água de um viveiro, coberto por macrófitas, utilizado como sistema de abastecimento de água para aquicultura; MÉTODOS: Foram estabelecidos 6 pontos para a coleta das amostras de água na superfície do viveiro, envolvendo entradas e saídas da água. As coletas foram realizadas mensalmente entre junho de 2008 e maio de 2009; RESULTADOS: Os pontos P1, P2 e P3 devido à entrada de água no viveiro apresentaram maiores concentrações de nutrientes com elevado estado trófico e, a entrada de capivaras nestes locais promoveu a suspensão do sedimento e aumento de coliformes fecais. Há significativas diferenças (p < 0,05 nas concentrações de nutrientes na água entre seca e chuva, com o escoamento de água gerado pela precipitação carreando material do entorno do viveiro para a água; CONCLUSÕES: O sistema estudado sofre influência direta da precipitação e da ausência de manejo adequado da área do entorno. Durante a estação chuvosa a qualidade da água ficou comprometida com aumento da concentração de nutrientes, coliformes fecais e redução do oxigênio dissolvido na água, devido ao material alóctone proveniente da área ao redor do viveiro, afetando negativamente o sistema de abastecimento.

  2. Um estudo de downscaling dinâmico de precipitação intrasazonal acoplado a modelo chuva-vazão na bacia hidrográfica alto-médio São Francisco A study of intraseasonal precipitation dynamic downscaling coupled to rain-streamflow model at the alto-médio São Francisco hydrographic basin

    Directory of Open Access Journals (Sweden)

    José Pedro Rebés Lima

    2009-09-01

    Full Text Available Este estudo mostra a aplicação de modelagem hidroclimática dinâmica (hydroclimate downscaling de precipitação acoplada a um modelo hidrológico chuva-vazão, para as Bacias hidrográficas denominadas Cachoeira Manteiga e Porto da Extrema, localizadas na Bacia do Alto-Médio São Francisco no Estado de Minas Gerais. Ênfase foi dada à simulação na escala intrasazonal (mensal. Os resultados sugerem que a simulação de precipitação pode ser usada como variável de entrada em modelos de estimativa de vazão para períodos na escala de um mês, dando subsídio a um melhor aproveitamento dos recursos hídricos na bacia hidrográfica estudada. Estes ainda sugerem que a simulação de precipitação, quando corrigida pela técnica Probability Density Function (PDFs, é mais eficiente na estimativa de precipitação simulada quando comparada com a precipitação observada na bacia, resultando em uma melhor simulação de vazão afluente na bacia.This study shows the use of rainfall dynamic hydroclimate downscaling coupled to the rain-streamflow hydrological model for the hydrographic basins named Cachoeira Manteiga and Porto da Extrema, localized at Alto-Médio São Francisco Basin in Minas Gerais State. The emphasis was to simulate the intraseasonal scale (monthly. The results suggest that the rainfall simulation can be used as input data to streamflow estimation models for periods of monthly scale, allowing a more rational usage of the surface water resources in the hydrographic basin studied. It is also suggested that the rainfall data simulation, corrected by the Probability Density Function (PDF technique, is more efficient to estimate rainfall comparing to observed rainfall in the basin thus resulting in a better simulation of the basin flow outlet.

  3. PREFACE: Brazil MRS Meeting 2014

    Science.gov (United States)

    2015-11-01

    The annual meetings, organized by the Brazilian materials research society - B-MRS, are amongst the most import discussion forums in the area of materials science and engineering in Brazil, with a growing interest from the national and international scientific society. In the last 4 years, more than 1,500 participants have attended the B-MRS meetings, promoting an auspicious environment for presentation and discussion of scientific and technological works in the materials science area. The XIII Brazilian Materials Research Society Meeting was held from 28 September to 02 October, 2014, in João Pessoa, PB, Brazil. The Meeting congregated more than 1650 participants from the whole of Brazil and from 28 other countries. More than 2100 abstracts were accepted for presentation, distributed along 19 Symposia following the format used in traditional meetings of Materials Research Societies. These involved topics such as: synthesis of new materials, computer simulations, optical, magnetic and electronic properties, traditional materials as clays and cements, advanced metals, carbon and graphene nanostructures, nanomaterials for nanostructures, energy storage systems, composites, surface engineering and others. A novelty was a symposium dedicated to innovation and technology transfer in materials research. The program also included 7 Plenary Lectures presented by internationally renowned researchers: Alberto Salleo from Stanford University, United States of America; Roberto Dovesi from Universita' degli Studi di Torino, Italy; Luís Antonio F. M. Dias Carlos from Universidade de Aveiro, Portugal; Jean Marie Dubois from Institut Jean-Lamour, France; Sir Colin Humphreys from University of Cambridge, England; Karl Leo from Technische Universität Dresden, Germany; Robert Chang from Northwestern University, Evanston, United States of America. The numbers of participants in the B-MRS meetings have been growing continuously, and in this meeting we had almost 2200 presentations

  4. Stability and growth in Brazil

    Directory of Open Access Journals (Sweden)

    Enestor Dos Santos

    2012-04-01

    Full Text Available Since the end of the 1990s, Brazil has succeeded in implementing and developing an economic model based on an inflation target model to keep domestic prices under control, a flexible exchange rate and a commitment to ensuring the solvency of the public sector. This model was initially adopted during Fernando Henrique Cardoso’s second term as president, and subsequently maintained and refined during Luis Inácio Lula da Silva’s two terms. Its development will certainly continue under the presidency of Dilma Rousseff. The consensus on this economic model and the relative dissociation of political and economic cycles have facilitated the stabilisation of the domestic environment and the acceleration of economic growth.

  5. Bovine cysticercosis situation in Brazil

    Directory of Open Access Journals (Sweden)

    Gabriel Augusto Marques Rossi

    2014-02-01

    Full Text Available The taeniasis-cysticercosis complex is a long known zoonotic parasitosis characteristic of underdeveloped countries. In addition to its public health significance, this parasitosis is cause of economic losses to the beef production chain, and synonymous of technical inadequacy in relation to the adoption of Good Agricultural Practices. The occurrences of both human teniasis and bovine cysticercosis could and should be controlled with basic sanitary measures. However, there is much variation in the occurrence of the disease in cattle, characterizing a low rate of technical development as well as problems related to the adoption of basic sanitation measures. This review describes, in details, the causative agent and its epidemiological chain, besides raising current information about the occurrence of bovine cysticercosis in different regions of Brazil, aiming at the adoption of prophylactic measures by different segments responsible.

  6. Corn performance with late sowing in Planalto Catarinense, Brazil, simulated with CERES-maize model

    Directory of Open Access Journals (Sweden)

    Célio Orli Cardoso

    2008-08-01

    Full Text Available This work had the objective to investigate the delay effects in the sowing date on corn establishment, cycle duration and yield through the computer simulations using CERES-Maize model, in order to help agrarian producers from the Mountainous Area of Santa Catarina, Brazil to take better decisions on it. The computer simulations showed that: 1the risks on corn establishment increased due to the delay of sowing during the studied years; 2 in some years, its cycles were drastically affected for the lower temperatures; 3 the cycle durations were longer when confronted with the low temperatures; 4 corn income decreased when the cycles were confronted with the low temperatures, water deficiency and low solar radiation; 5 potential incomes averaged 4944 kg ha-1, and under the natural rain conditions averaged 2490 kg ha-1, during all the months analyzed from October to March; 6 besides January, the exploration of this cultivar was not viable because of the high risk of the crop frustration associated to the same ones, due to the thermal conditions (low temperatures and frost.O trabalho teve como objetivo investigar os efeitos decorrentes do atraso da semeadura no estabelecimento, duração do ciclo e rendimento do milho, mediante simulações em computador com o uso do modelo CERES-Maize, a fim de orientar os produtores na tomada de decisão na região do Planalto Serrano Catarinense. Em função da época em que é cultivado, o milho com semeadura tardia normalmente está exposto a riscos maiores de perdas por geadas e defici��ncia hídrica em relação ao cultivo na época recomendada, atingindo um menor potencial de produtividade e tendência de alongamento do ciclo. As simulações permitiram concluir que: os riscos de estabelecimento do milho foram bastante variáveis ao longo dos decêndios analisados; em alguns anos os ciclos foram afetados drasticamente por temperaturas bastante baixas; as durações dos ciclos tenderam a alongar-se quando

  7. Community Development in Brazil: Two Experiences.

    Science.gov (United States)

    O'Gorman, Frances; Speyer, Anne Marie; Tedrus, Maria Aparecida L.

    1998-01-01

    O'Gorman provides "Five Points for Reflection" on nongovernmental and community organizations in Brazil. Speyer and Tedrus discuss "Community Libraries: An Experience in Community Development in the Periphery of Sao Paulo." (SK)

  8. Queer Counterpublics in Australia, Mexico and Brazil

    Directory of Open Access Journals (Sweden)

    Kyja Noack-Lundberg

    2011-09-01

    Full Text Available A review of Rafaael de la Dehesa, Queering the Public Sphere in Mexico and Brazil: Sexual Rights Movements in Emerging Democracies (Duke, 2010 and Kane Race, Pleasure Consuming Medicine (Duke, 2009.

  9. Hyperinflation in Brazil, Israel, and Nicaragua revisited

    OpenAIRE

    Szybisz, M A; Szybisz, L.

    2016-01-01

    The aim of this work is to address the description of hyperinflation regimes in economy. The spirals of hyperinflation developed in Brazil, Israel, and Nicaragua are revisited. This new analysis of data indicates that the episodes occurred in Brazil and Nicaragua can be understood within the frame of the model available in the literature, which is based on a nonlinear feedback (NLF) characterized by an exponent $\\beta>0$. In the NLF model the accumulated consumer price index carries a finite ...

  10. Brazil : Growth and Poverty Reduction in Pernambuco

    OpenAIRE

    World Bank

    2002-01-01

    Despite its origin as one of the pioneering and richest states of Brazil, Pernambuco today has a history of slower economic growth than Brazil as a whole. Pernambuco began as a sugar producing state and the expansion of sugar production led its economic development until the mid 1600s. Then Pernambuco declined, as sugar production became more profitable elsewhere in the world. It is estima...

  11. Huge Business Potential in China and Brazil

    Institute of Scientific and Technical Information of China (English)

    Guo Yan

    2008-01-01

    @@ Brazil has the largest economy in Latin America, and the world's tenth largest economy in terms of purchasing power parity. In recent years. Brazil has become a well developed nation and its exports are increasing, with major export industries that include aircraft, coffee, automobiles, soybean, steel, textiles, and electronics. Its biggest investment boom in history is still under way as it continues to focus on attracting investment from foreign countries.

  12. [The health system of Brazil].

    Science.gov (United States)

    Montekio, Víctor Becerril; Medina, Guadalupe; Aquino, Rosana

    2011-01-01

    This paper describes the Brazilian health system, which includes a public sector covering almost 75% of the population and an expanding private sector offering health services to the rest of the population. The public sector is organized around the Sistema Único de Saúde (SUS) and it is financed with general taxes and social contributions collected by the three levels of government (federal, state and municipal). SUS provides health care through a decentralized network of clinics, hospitals and other establishments, as well as through contracts with private providers. SUS is also responsible for the coordination of the public sector. The private sector includes a system of insurance schemes known as Supplementary Health which is financed by employers and/or households: group medicine (companies and households), medical cooperatives, the so called Self-Administered Plans (companies) and individual insurance plans.The private sector also includes clinics, hospitals and laboratories offering services on out-of-pocket basis mostly used by the high-income population. This paper also describes the resources of the system, the stewardship activities developed by the Ministry of Health and other actors, and the most recent policy innovations implemented in Brazil, including the programs saúde da Familia and Mais Saúde.

  13. Indigenous Child Health in Brazil

    Science.gov (United States)

    del Pino Marchito, Sandra; Vitoy, Bernardino

    2016-01-01

    Abstract Improving the health status of indigenous children is a long-standing challenge. Several United Nations committees have identified the health of indigenous peoples as a human rights concern. Addressing the health of indigenous children cannot be separated from their social, cultural, and historic contexts, and any related health program must offer culturally appropriate services and a community perspective broad enough to address the needs of children and the local worlds in which they live. Evaluations of programs must, therefore, address process as well as impacts. This paper assesses interventions addressing indigenous children’s health in Brazil, ranging from those explicitly targeting indigenous children’s health, such as the targeted immunization program for indigenous peoples, as well as more generalized programs, including a focus upon indigenous children, such as the Integrated Management of Childhood Illness. The paper discusses the tensions and complexities of ethnically targeted health interventions as well as the conceptual and methodological challenge of measuring the processes employed and their impact. The lessons learned, especially the need for countries to more systematically collect data and evaluate impacts using ethnicity as an analytical category, are drawn out with respect to ensuring human rights for all within health sector responses.

  14. Epidemiology of neurocysticercosis in Brazil.

    Science.gov (United States)

    Agapejev, S

    1996-01-01

    A revision of literature was done with the objective of tracing an epidemiologic profile of neurocysticercosis (NCC) in Brazil. The prevalence was 0.12-9% in autopsies. The frequency was 0.03-7.5% in clinical series and 0.68-5.2% in seroepidemiological studies. The disease corresponds to 0.08-2.5% of admissions to general hospitals. Patient origin was rural in 30-63% of cases. The most involved age range (64-100%) was 11 to 60 years, with a predominance (22-67%) between 21 and 40 years. The male sex was the most affected (51-80%). In the severe forms there was a predominance of urban origin (53-62%) and of the female sex (53-75%). The period of hospitalization ranges from 1 to 254 days and 33 to 50% of patients suffer 1.7 +/- 1.4 admissions. The clinical picture was variable, with a predominance of epileptic syndrome (22-92%) and intracranial hypertension (19-89%). Psychiatric manifestations were associated in 9-23% of patients. Lethality was 0.29% in terms of all diseases in general and 4.8-25.9% in terms of neurologic diseases. The asymptomatic form was detected in 6% of patients in clinical series and in 48.5% of case from autopsies. The racemose form and ventricular localization also was observed as asymptomatic form. Among the patients with cutaneous cysticercosis 65% of them showed neurologic manifestations.

  15. Development of Biosimilars in Brazil

    Directory of Open Access Journals (Sweden)

    Eduardo Braz Pereira Gomes

    2016-06-01

    Full Text Available This article presents a brief overview of the biosimilar industry in Brazil and in the world. Biosimilars are drugs originating from therapeutic or biological proteins, whose patents are expired or are going to expire. Similarly to the generic pharmaceutical industry, the expiration of patents for biologics allows the emergence of a new segment in the pharmaceutical companies. The advent of biosimilars enables to overcome of several barriers, not limited to regulatory aspects of intellectual property, but also issues related to process and technological expertise. At this level of complexity, the biosimilar manufacturers need to have the same expertise or capabilities compared to originator drug companies or holders of the patents. The importance of biosimilars is due to public health context and high costs of originator biologics. Due to an aging population, the incidence of chronic degenerative disease will increase and will have a major impact in healthcare system, in this way the emergence of biosimilars will result in substantial cost reductions.

  16. NEWS:Introduction of Brazil upland rice in China

    Institute of Scientific and Technical Information of China (English)

    LINantian

    1998-01-01

    In 1992, the government of Brazil presented nine crop varieties to China. One of them is Brazil upland rice IAPAR9. It was evaluated for commercial usage in China by China National Rice Research Institute (CNRRI).

  17. Brazil's neglected tropical diseases: an overview and a report card.

    Science.gov (United States)

    Hotez, Peter J; Fujiwara, Ricardo T

    2014-08-01

    Today, the nation of Brazil leads the Western Hemisphere in terms of the number of its citizens living with neglected tropical diseases (NTDs). These diseases continue to trap Brazil's "bottom 20 million" in extreme poverty.

  18. Epidemia de esquistossomose aguda na praia de Porto de Galinhas, Pernambuco, Brasil An outbreak of acute schistosomiasis at Porto de Galinhas beach, Pernambuco, Brazil

    Directory of Open Access Journals (Sweden)

    Constança Simões Barbosa

    2001-06-01

    Full Text Available Este trabalho notifica a ocorrência de um surto de esquistossomose aguda na praia de Porto de Galinhas, Pernambuco, Brasil, quando 662 pessoas tiveram diagnóstico positivo para Schistosoma mansoni. A infecção humana em massa ocorreu no feriado de 7 de setembro, quando chuvas pesadas provocaram a enchente do rio Ipojuca que invadiu as residências. A maioria dos casos agudos foi representada por famílias de residentes locais que tiveram exposição diária às cercárias durante três semanas, até que as águas baixassem. O inquérito malacológico aponta para a possibilidade dos caramujos vetores terem sido introduzidos na localidade com os aterros realizados em quintais, onde vieram a se reproduzir em criadouros peridomiciliares. A infecção dos moluscos se deu a partir de vazamentos de fossas. Os resultados da clínica e do laboratório apontam para cerca de 62% de casos agudos. Estudos complementares estão sendo realizados, para a melhor compreensão deste evento epidemiológico de significativa magnitude para os órgãos de saúde pública e impacto para a população afetada.We recently confirmed several cases of acute schistosomiasis in Porto de Galinhas beach, Northeast Brazil. A total of 662 patients were diagnosed by parasitological and clinical examinations. The infection likely occurred during the September 7 national holiday, when heavy rainfall flooded the Ipojuca River and people were infected when the water covered their yards. Families were continuously exposed to infection for a period of three weeks until the water had completely dried up. Previous investigation suggests that snail vectors were introduced as a result of landfill in marshy areas. The swamp-flooding of such areas facilitated the emergence of slums surrounded by snail breeding sites. Heavy rainfall caused open-air sewage ditches to overflow, allowing for infection of snails by Schistosoma mansoni. Thus, continuous floods were responsible for the spread of

  19. Diatomáceas epilíticas de águas oligotróficas e ácidas do Sudeste do Brasil Epilithic diatoms from acidic and oligotrophic waters in Southeast Brazil

    Directory of Open Access Journals (Sweden)

    Luís Gustavo de Castro Canani

    2011-03-01

    Full Text Available Poucos estudos tem abordado a flora de diatomáceas de sistemas oligotróficos do Brasil. São apresentados os resultados da composição taxonômica e distribuição espacial e temporal de diatomáceas no rio do Salto, situado no Parque Estadual do Ibitipoca, Minas Gerais (21º40'-21º44'S e 43º52'-43º55'W. As águas desse rio possuem pH entre 4,2 e 5,5 e concentração de ortofosfato entre 1,37 e 10,98 µg.L-1. O estudo baseia-se na análise de 80 amostras coletadas em oito estações no leito rochoso do rio, em janeiro e julho de 2004, períodos de chuva e estiagem, respectivamente. Um total de 15 espécies e duas variedades taxonômicas, distribuídas em oito gêneros e oito famílias foram descritas e ilustradas, com destaque para o gênero Eunotia Ehrenberg. O estudo sobre diatomáceas bentônicas em ambientes lóticos é pioneiro no estado de Minas Gerais, sendo registradas 14 novas citações, das quais Fragilariforma stevensonii Metzeltin & Lange-Bertalot, Eunotia pirarucu Metzeltin & Lange Betalot, Nupela giluwensis Vyverman & Compère e Sellaphora blackfordensis Mann & Droop são primeiros registros para o Brasil.Few studies have been done on the diatom flora of acidic and oligotrophic environments from Brazil. We present the taxonomic composition and distribution of diatoms of Salto River, situated at Ibitipoca State Park, Minas Gerais (21º40'-21º44'S; 43º52'-43º55'W. The pH values ranged from 4.2 to 5.5 and orthophosphate was between 1.37 and 10.98 µg.L-1. The study is based on the analysis of 80 samples collected at eight stations in the rocky stream bed, in January and July 2004, rainy and dry seasons, respectively. A total of 15 species and two taxonomic varieties distributed in eight genera and eight families were described and illustrated, notably the Eunotia Ehrenberg genus. The study of benthic diatoms in lotic systems is pioneer in Minas Gerais state; 14 new records were recorded of which Fragilariforma stevensonii

  20. Women's motivation to become dentists in Brazil.

    Science.gov (United States)

    Kfouri, Maria G; Moyses, Samuel J; Moyses, Simone Tetu

    2013-06-01

    There has been a marked increase of women in dentistry in Brazil and in many countries around the world. The behavioral mechanisms behind the choice of career differ between men and women, and the inclination to care for others is thought by some to be more present in women than it is in men. This article discusses the reasons that lead women to choose dentistry as a profession in Brazil and the impact of feminization on the current and future profile of the profession, based on the ethics of care. The authors' review of the relevant literature published between 2000 and 2011, primarily in Brazil, suggests that whereas men have tended to choose dentistry as a good business opportunity, women have tended to base their decision on relations with other people and the flexibility of practicing the profession. Many women dentists have been found to decide to work fewer hours, report more interruptions in their activities, and have less preference to work in private practice than men dentists. In the view of service users and dental auxiliaries in Brazil, women dentists invest more time in their patients and communicate in a more pleasant, sensitive, and friendly manner. The conclusion suggests that characteristics often associated with women can affect the dental profession in Brazil by introducing greater concern with the promotion of health and other people's well-being in contrast to traditional dentistry based on curative procedures.

  1. Brazil : The New Growth Agenda, Volume 2. Detailed Report

    OpenAIRE

    World Bank

    2002-01-01

    During the last century, Brazil was one of the fastest growing economies in the world. Between 1901 and 2000, Brazil's Gross Domestic Product (GDP) per capita grew at an average annual rate of 4.4 percent. Brazil's long-run growth has rivaled that of counties such as South Korea, universally praised as a stellar performer. Brazil does not received the same praise. Perhaps one reason is tha...

  2. Cisternas para armazenamento de água de chuva e efeito na diarreia infantil: um estudo na área rural do semiárido de Minas Gerais Rainwater cisterns and its effect in children diarrhoea: a study in semi arid rural area at Minas Gerais

    Directory of Open Access Journals (Sweden)

    Carolina Ventura da Silva

    2012-12-01

    Full Text Available O estudo avaliou a prevalência de diarreia em crianças menores de 60 meses, segundo o tipo de abastecimento de água utilizado. Foi conduzido estudo epidemiológico, seguindo o delineamento quase-experimental, com 664 crianças, sendo 332 moradoras de residência que têm cisterna e 332 que utilizam água de outra fonte. A variável dependente foi a ocorrência de diarreia nas últimas 72 horas; as outras informações foram obtidas por meio da aplicação de questionários estruturados. A prevalência total de diarreia foi de 5%, porém sem diferença significativa entre os grupos. As variáveis que explicaram a morbidade foram o grupo, a idade da criança, a ingestão de vitamina ou fortificante, e o local de descarte das fraldas sujas com fezes da criança. Não houve diferença significativa entre os grupos na avaliação da qualidade microbiológica da água, ou seja, o uso de água de chuva pode não ter proporcionado melhorias no acesso à água de melhor qualidade quando comparado com as outras fontes utilizadas. No entanto, há que se considerar falhas nos cuidados, no manuseio e no tratamento da água adotados. Destaca-se a necessidade de melhoria das práticas sanitárias da população do meio rural para que a higiene pessoal, domiciliar e em relação à água consumida sejam incorporadas como hábitos rotineiros.The present text evaluated the diarrhea prevalence in children under 60 months, according to water supply. An epidemic study was conducted with quasiexperimental design with 664 children, 332 who lived in residence that had cistern and 332 that use water from another source. Diarrhoea occurrence in the last 72 hours was the dependent variable, the others informations were obtained by structured questionnaires. Total diarrhoea prevalence was of 5%, however with no significant difference among the groups. The variables that explained the disease were child's age; if it was taking vitamin and where the dirty diapers with the

  3. Produção de leite de vacas mestiças Holandês ´ Zebu em pastagem de capim-elefante, com e sem suplementação de concentrado durante a época das chuvas Milk yield of crossbred Holstein ´ Zebu cows supplemented or not with concentrate during the rainy season

    Directory of Open Access Journals (Sweden)

    F. Deresz

    2003-06-01

    Full Text Available O objetivo do experimento foi estudar o efeito da suplementação da pastagem de capim-elefante com concentrado na época das chuvas e início da seca, entre dezembro e junho, sobre a produção e composição do leite e ganho de peso de vacas mestiças Holandês ´ Zebu. Os tratamentos foram pastagem de capim-elefante sem concentrado (SC e com 2,0kg de concentrado/vaca/dia (CC. A área experimental de pastagem foi dividida em 44 piquetes de 606m² cada um, 22 por tratamento, com duas repetições de área. Foram usadas 12 vacas, sendo seis por tratamento. O delineamento experimental foi em blocos ao acaso. A pastagem foi manejada em pastejo rotativo com três dias de ocupação por piquete e 30 dias de descanso. A taxa de lotação foi de 4,5 vacas/ha. A pastagem foi adubada com 200kg/ha/ano de N e de K2O. As produções médias de leite corrigido para 4% de gordura foram de 11,6± 0,3 e 12,5± 0,3kg/vaca/dia e o ganho médio diário por vaca de 211 e 244g, para os tratamentos SC e CC, respectivamente. Houve diferença (PThis work aimed to study the effect of concentrate supplementation of elephantgrass pasture during the rainy season and at the beginning of the dry season, on milk yield, milk composition and weight gain of crossbred Holstein ´ Zebu cows. The treatments were: elephantgrass pasture with no concentrate supplementation (NC and with 2kg concentrate supplementation cow/day (WC. The experimental area was divided in 44 paddocks with 606m² each, corresponding to 22 paddocks per replication and six cows per treatment. The cows were alloted to the treatments according to a completely randomized block design. The pasture was managed in a rotational system with 30 days resting period and three days grazing per paddock. The stocking rate was 4.5 cows/ha. The pasture was fertilized with 200kg/ha/yr of N and K2O. The average fat corrected (4% milk yield was 11.6± 0.3 and 12.5± 0.3kg/cow/day and the average daily weight gain during the

  4. Evaluation of Pb and Fe tenors present in the sediments nearby the activities of taking advantage of lead-acid batteries; Avaliacao dos teores de Pb e Fe presentes nos sedimentos proximos as atividades de reaproveitamento de baterias chumbo-acidas

    Energy Technology Data Exchange (ETDEWEB)

    Soares, Fernanda; Andrade, Crescencio; Monteiro, Carlos; Oliveira, Daniela; Valentim, Eliane, E-mail: candrade@cnen.gov.b, E-mail: valentim@cnen.gov.b [Centro Regional de Ciencias Nucleares (CRCN/NE-CNEN/PE), Recife, PE (Brazil)

    2011-07-01

    The region chosen for this study was the Municipality of Belo Jardim, Pernambuco State, Brazil, which is considered an important industrial complex of the production and repairing of lead-acid batteries. Sediment samples were collected near to the illegal smelting industries and analyzed by ionic exchange method using a alpha-beta proportional counter for determining the activity of Pb-210, radionuclide used as geochronological tool. The chemical elements Pb and Fe were determined by means of flame atomic absorption spectrometry. The obtained results indicated an expressive increasing of lead and iron concentrations in the last 20 years. The concentrations in the sampled profile varied from 318 to 15487 mg.kg-1 and from 19 to 1524 mg.kg-1 for Fe and Pb, respectively. (author)

  5. A new species of Fernandezina (Araneae, Palpimanidae from southern Brazil

    Directory of Open Access Journals (Sweden)

    Ricardo Ott

    2014-12-01

    Full Text Available A new species of Fernandezina Birabén, 1951, F. nica sp. nov. is described from Rio Grande do Sul state, in southern Brazil. Fernandezina pulchra Birabén, 1951, is registered for Brazil and a new geographic record in Brazil is presented for F. pelta Platnick, 1975.

  6. Sazonalidade e variabilidade espacial da qualidade da água na Lagoa do Apodi, RN Spatial variability and seasonality of the water quality in the Lagoa do Apodi Lagoon, RN, Brazil

    Directory of Open Access Journals (Sweden)

    Marcírio de Lemos

    2010-02-01

    Full Text Available Neste trabalho se propõe avaliar a qualidade da água da Lagoa do Apodi, RN, em pontos compreendidos em todo o seu espelho, com ênfase ao monitoramento da qualidade da água sob influência da bacia urbana da cidade de Apodi e do aporte de materiais trazidos pelas águas continentais que adentram e eutrofizam a lagoa, em períodos extremos de temperatura e de precipitação. Amostras sistemáticas no espelho da lagoa foram coletadas seguindo-se seu formato ou ao longo de seu leito. A condutividade elétrica da água da Lagoa varia em todo o seu espelho, principalmente nas extremidades oeste e sudeste, aumentando após o início do período seco e diminuindo após a chegada das chuvas. Há uma grande variabilidade espacial nas características físicas e químicas, sobretudo para pH, CE, RAS e teores de Na e Cl; pode-se inferir, também, que nas águas da lagoa os íons encontrados em maiores níveis foram o cloreto e o sódio, tanto para os pontos de coleta como para a época de coleta. A variação na qualidade bacteriológica da água compromete a balneabilidade da Lagoa do Apodi, principalmente logo após o período das chuvas.The objective of this study was to evaluate the water quality of the Apodi lagoon, in the State of Rio Grande do Norte, Brazil, at points along its surface. The monitoring of the water quality is emphasized as it is under influence of the urban basin of Apodi and due to incorporation of material by the influx of continental waters that lead to eutrophization of the lagoon water in periods of extreme temperatures and precipitation. Systematic samples were collected from the lagoon water surface throughout its length. The electrical conductivity of the Apodi water varies along the surface, mainly in the west and southeast extremities. The water salinity increased with the beginning of the dry period and decreased after the rains. There is a great spatial variability in the physical and chemical characteristics, mainly

  7. Teleconnection mechanisms of northeast Brazil droughts: modeling and empirical evidence Mecanismos de teleconexões do nordeste do Brasil: modelagem numérica e evidência epirica

    Directory of Open Access Journals (Sweden)

    Fred Kucharski

    2008-06-01

    Full Text Available Targeted numerical modelling experimaents are conducted to complement the previous empirical diagnostics of circulation mechanisms leading from sea surface temperature (SST departures in the equatorial Pacific in January to anomalies in the March-April rainy season of Brazil's Nordeste. A weak interhemispheric northward directed SST gradient in the Atlantic favors a more southerly position of the hydrostatically controlled low pressure trough, embedded in which is the Intertropical Convergence Zone (ITCZ, which is the main rainbearing system for the Nordeste. In addition, anomalously warm waters in the equatorial Pacific in January tend to be followed by Nordeste drought. The underlying chain of causalities has been explored by empirical diagnostics and numerical modelling. During El Nino years, an upper-tropospheric wave train extends from the equatorial eastern Pacific to the tropical North Atlantic, affecting the patterns of upper-tropospheric topography and divergence, and hence of vertical motion over the Atlantic. This leads to a weaker meridional pressure gradient on the equatorward flank of the North Atlantic subtropical high, weaker North Atlantic tradewinds, an anomalously far northerly ITCZ position and thus Nordeste drought. The previous empirical diagnostics are overall supported by the modelling experiments.Experimentos específicos de modelagem numérica foram conduzidos para complementar diagnósticos empíricos realizados anteriormente dos mecanismos da circulação que relacionam anomalias na temperatura das águas superficiais do Pacífico equatorial em janeiro com as chuvas subsequentes em março-abril no Nordeste. Um gradiente térmico fraco (no sentido norte no Atlântico favorece a uma posição mais meridional do cavado de baixa pressão, controlado hidrostaticamente, dentro do qual se encontra a Zona de Convergência Inter-Tropical (ITCZ, que é a principal fonte de chuvas para o norte do Nordeste. Além disso,

  8. Architecture of Brazil 1900-1990

    CERN Document Server

    Segawa, Hugo

    2013-01-01

    Architecture of Brazil: 1900-1990 examines the processes that underpin modern Brazilian architecture under various influences and characterizes different understandings of modernity, evident in the chapter topics of this book. Accordingly, the author does not give overall preference to particular architects nor works, with the exception of a few specific works and architects, including Warchavchik, Niemeyer, Lucio Costa, and Vilanova Artigas. In summary, this book: Meticulously examines the controversies, achievements, and failures in constructing spaces, buildings, and cities in a dynamic country Gives a broad view of Brazilian architecture in the twentieth century Proposes a reinterpretation of the varied approaches of the modern movement up to the Second World War Analyzes ideological impacts of important Brazilian architects including Oscar Niemeyer, Lucio Costa and Vilanova Artigas Discusses work of expatriate architects in Brazil Features over 140 illustrations In Architecture of Brazil: 1900-1990, S...

  9. Brazil research in selected scientific areas

    DEFF Research Database (Denmark)

    Ingwersen, Peter

    2009-01-01

    for Brazil and Mexico are identical, with a vast increase since 1991. In contrast, RSA follows the global growth rate. From 1996 to 2005 both Latin American countries almost doubles their research publications in English, probably influencing the growth in relative citation impact, as measured by FCI......  The paper analyses the general development of research in Brazil, 1981-2005 and compares to Mexico, Republic of South Africa (RSA) and the world. Publications from 15 research areas and their citations are analyzed for the three countries covering two five-year periods 1996-2005. The paper...... applies publication growth as well as Citedness and Field Crown Indicators (FCI). Results show that across all research fields, including the Social Sciences, from 1996 the absolute citation impact of Brazil and Mexico are alike, steadily increasing, and just below that of RSA. Publication growth patterns...

  10. Air-driven Brazil nut effect

    Science.gov (United States)

    Naylor, M.; Swift, Michael; King, P.

    2003-07-01

    A large heavy object may rise to the top of a bed of smaller particles under the influence of vertical vibration, the “Brazil nut effect.” Recently it has been noted that interstitial air can influence the Brazil nut rise time. Here we report that the air movement induced by vertical vibration produces a very strong Brazil nut effect for fine granular beds. We use a porous-bottomed box to investigate the mechanism responsible for this effect and to demonstrate that it is related to the piling of fine beds, first reported by Chladni and studied by Faraday. Both effects are due to the strong interaction of the fine particles with the air, as it is forced through the bed by the vibration.

  11. Brazil's sugarcane boom could affect regional temperatures

    Science.gov (United States)

    Schultz, Colin

    2013-04-01

    With the world seeking to cut its dependence on fossil fuels, the use of bioethanol and other biofuels is on the rise. In Brazil, the second largest producer and consumer of bioethanol, this has led to a boom in sugarcane production. Based on new laws and trade agreements, researchers expect Brazil's production of sugarcane-derived ethanol to increase tenfold over the next decade, with considerable land being converted for growing sugarcane. Much of this expansion is expected to come at a loss of some of the country's cerrado savannas. So while a major aim of the turn to biofuels is to reduce the transfer of carbon to the atmosphere and mitigate global climate change, the shifting agricultural activity could have direct consequences on Brazil's climate by changing the region's physical and biogeochemical properties.

  12. US/Brazil joint pilot project objectives

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-01

    This paper describes a joint US/Brazil pilot project for rural electrification, whose major goals are: to establish technical, institutional, and economic confidence in using renewable energy (PV and wind) to meet the needs of the citizens of rural Brazil; to establish on-going institutional, individual and business relationships necessary to implement sustainable programs and commitments; to lay the groundwork for larger scale rural electrification through the use of distributed renewable technologies. The projects have supported low power home lighting systems, lighting and refrigeration for schools and medical centers, and water pumping systems. This is viewed as a long term project, where much of the equipment will come from the US, but Brazil will be responsible for program management, and sharing data gained from the program. The paper describes in detail the Brazilian program which was instituted to support this phased project.

  13. Epidemiological Scenario of Dengue in Brazil

    Directory of Open Access Journals (Sweden)

    Rafaelle C. G. Fares

    2015-01-01

    Full Text Available Dengue is the most important reemerging mosquito-borne viral disease worldwide. It is caused by any of four Dengue virus types or serotypes (DENV-1 to DENV-4 and is transmitted by mosquitoes from the genus Aedes. Ecological changes have favored the geographic expansion of the vector and, since the dengue pandemic in the Asian and Pacific regions, the infection became widely distributed worldwide, reaching Brazil in 1845. The incidence of dengue in Brazil has been frequently high, and the number of cases in the country has at some point in time represented up to 60% of the dengue reported cases worldwide. This review addresses vector distribution, dengue outbreaks, circulating serotypes and genotypes, and prevention approaches being utilized in Brazil.

  14. Indirect taxes on food in Southern Brazil

    Directory of Open Access Journals (Sweden)

    Denize Mirian da Silva

    2013-12-01

    Full Text Available The objective of this paper is to estimate the indirect tax burden on food for ten income classes, based on income and household total expenditure in southern Brazil. Thus it can be seen as indirect taxes on foods affect the monetary income and consumption pattern of households. To reach the objectives proposed, will be used the Pintos-Payeras (2008 model. The database iscomposed by microdata from the Household Budgeting Survey (POF 2008-2009 and the tax regulations of the country and the southern states of Brazil. The results show that indirect taxes on food in Southern Brazil is regressive when based on income and expenditure of household , ie , the poorest people pay proportionately more taxes and have their consumption pattern highest taxed ICMS (Brazilian value added tax is the tax that contributes most to the regressivity.

  15. [Fertility transition in Brazil. Causes and consequences].

    Science.gov (United States)

    Carvalho, J A; Wong, L R

    1992-12-01

    This work examines the determinants and most important consequences of the Brazilian fertility decline. Brazil's total fertility rate declined from 6.2 in 1940 to around 3.5 in 1985. the decline began in the 1960s and amounted to 45% in about 20 years. The most rapid drop began in the late 1970s, with much of it concentrated in 2 specific periods: 1970-75 and 1980-85. The early period coincided with Brazil's so-called "Economic Miracle", a period of rapid growth accompanied however by deteriorating living conditions for the poorest population sectors. The second period coincided with the international economic crisis of the early 1980s, which was felt more strongly in Brazil than elsewhere in Latin America because of Brazil's greater degree of industrialization and closer integration into the world economy. Most of the fertility decline has been accomplished by use of just two contraceptive methods, oral contraceptives and sterilization, which together account for around 85% of contraceptive usage throughout Brazil. The third most common method, rhythm, accounts for just 6%. No reliable data on abortion are available, but it appears to be a common practice equally accessible to all socioeconomic strata despite greater associated health risks for poorer women. Brazil's fertility transition appears to have been a response to the process of proletarianization and urbanization underway in the country as well as to particular circumstances in the country. The most evident and immediate consequence of the continuous fertility decline over more than 20 years is the change in the age structure of the population. The proportions of children under 5 will decline from 14.4% in 1980 to 9.2% in 2010. The proportion aged 5-14 will decline from 24.5% to 17.4%, while the proportion aged 65 and over will increase from 4.0% to 5.6%. Brazil's recent demographic changes are scarcely reflected in development plans and political and social projects. There is almost no mention of the new

  16. The sustainability of hydropower projects in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    de Methodio Maranhao Neto, Gil; Yana, Laurent

    2010-09-15

    The construction of hydropower plants unquestionably impacts the environment and communities. But countries such as Brazil have been able to build up a sophisticated socio-environmental legislation and institutions as well as a democratic and participative licensing process to protect the nature and the population affected. In some cases, plants greatly contribute towards the creation of local welfare to the population as well as good environmental practices. As a good example of best practices on socio-environmental standards, we will analyze Jirau Hydropower Project, currently under construction on the Madeira River, north of Brazil.

  17. New records of marine tardigrades from Brazil

    Directory of Open Access Journals (Sweden)

    Clélia Márcia Cavalcanti Da Rocha

    2013-05-01

    Full Text Available In studies developed in the mid- and infralittoral of Cupe Beach (Pernambuco, in the shallow infralittoral of Saint Peter and Saint Paul Archipelago, and in the continental shelf of northeastern Brazil, we recorded for the first time in Brazilian waters specimens of Archechiniscus marci, Batillipes lesteri, Florarctus hulingsi, Halechiniscus tuleari, Angursa lingua, Raiarctus aureolatus, Actinarctus doryphorus doryphorus, Tanarctus dendriticus, Tanarctus velatus, Neoarctus sp. and Neostygarctus sp., as well as six other species that had been previously recorded in the region. Hence, the number of marine tardigrade taxa recorded in Brazil was increased to twenty-seven.

  18. Policy Dilemmas in Brazil-Africa Relations,

    Science.gov (United States)

    1982-01-22

    dirloiratic planner and spokesman is founc In Pona:Jc Sardenberz, "A politica externa do Brasil nas duas ultimas decadas," Re’.ista d Servicc 1u0ico 0 1...the cunntrv. Even though political interests may eventua!!1Y accrue with the development of comercial involvement in Africa, Brazil resists engagement...34Brazil’s Arms find Willing Buyers in the Third World," New York Times (August ?, 1?81), p. E-3; "Armas: Brasil invade o mercado mundial," Senhor (February

  19. THE COOPERATIVE CREDIT MUTUAL IN BRAZIL.

    Directory of Open Access Journals (Sweden)

    Laércio Baptista da Silva

    2013-06-01

    Full Text Available This study presents an analysis of the reality of credit unions in Brazil, in view of the singular importance of credit unions for the whole society as an alternative to private resources in favor of members of the community where they are located. It confirms that, in Brazil, the mutual credit unions, besides being presented as one of the viable options within the financial system, are also seen as an alternative by which some sectors of society promote the humanization of the financial system by offering credit and return on capital with fairer interest rates.

  20. Family therapy in Brazil: current status.

    Science.gov (United States)

    Picon, Felipe

    2012-04-01

    In the last three decades there has been a noticeable trend in the redefinition of the nuclear family in Brazil. A recent increase in the rates of divorces and paradoxically also in the rates of marriages, the legalization of same-sex unions and adoption by these couples, and the phenomenon of teenage pregnancy are some of the aspects that reflect on the current Brazilian family. This review highlights these changes and describes how family therapists in Brazil are facing the challenge of assisting these families, in a continental-sized country with uneven distribution of training courses and healthcare assistance.

  1. Aspergillus bertholletius sp. nov. from Brazil Nuts

    DEFF Research Database (Denmark)

    Taniwaki, Marta H.; Pitt, John I.; Iamanaka, Beatriz T.

    2012-01-01

    During a study on the mycobiota of brazil nuts (Bertholletia excelsa) in Brazil, a new Aspergillus species, A. bertholletius, was found, and is described here. A polyphasic approach was applied using morphological characters, extrolite data as well as partial beta-tubulin, calmodulin and ITS...... acid and ustilaginoidin C. Phylogenetic analysis using partial beta-tubulin and camodulin gene sequences showed that A. bertholletius represents a new phylogenetic clade in Aspergillus section Flavi. The type strain of A. bertholletius is CCT 7615 (=ITAL 270/06 = IBT 29228)....

  2. Metátese de olefinas no Brasil: "Brazil is romping it!" Olefin metathesis in Brazil: Brazil is romping it!

    Directory of Open Access Journals (Sweden)

    José Milton E. Matos

    2007-04-01

    Full Text Available Some aspects of the olefin metathesis reactions are summarized here (types of reactions, mechanism and catalysts. In particular, the research groups that have been working on this chemistry in Brazil are presented. The main goal of this paper is to make this type of reaction more widely known in the Brazilian chemical community.

  3. Absconding and migratory behaviors of feral Africanized honey bee (Apis mellifera L. colonies in NE Brazil = Comportamentos de abandono e migração de colônias silvestres da abelha melífera africanizada (Apis mellifera L. no nordeste do Brasil

    Directory of Open Access Journals (Sweden)

    Breno Magalhães Freitas

    2007-10-01

    Full Text Available We investigated the annual movements of feral Africanized honey bee (Apis mellifera L. colonies in the state of Ceará, Brazil, aiming to understand seasonal variations in their population. Arrival and absconding of Africanized honey bee (AHB colonies in the semiaridmunicipality of Canindé and the coastal humid city of Fortaleza (120 km apart were recorded weekly from January 1999 to December 2001, and the data compared to rainfall records in both areas. Results showed that AHB colonies only nest in the semiarid during the rainy season and abscond during the dry season, the opposite from observations taken in Fortaleza. Only 5% of colonies remained in the semiarid area for the entire year due to ant (Camponotus sp. attacks and shortage of nectar and water during the dry season, with most colonies migrating to coastal areas where the weather is milder and many plant species bloom at that time of year. Excessive rainfallprobably pushes AHB colonies back to the semiarid during the rainy season. We concluded that absconding and migration are strategies that allow AHB colonies to survive in the semiarid NE of Brazil, contrary to European honeybees, which have never succeeded in establishing wild colonies in the region.Os movimentos de colônias silvestres da abelha melífera africanizada (Apis mellifera L. no Estado do Ceará, Brasil, foram investigados com o objetivo de compreender variações anuais em sua população. A chegada e a partida de colônias de abelhas africanizadas (AHB,no município semi-árido de Canindé e na úmida cidade litorânea de Fortaleza (separadas por 120 km, foram monitoradas semanalmente, de janeiro de 1999 a dezembro de 2001, e comparados com os dados pluviométricos de chuvas em ambas as áreas. Os resultadosdemonstraram que as abelhas africanizadas somente nidificaram no semi-árido durante a estação chuvosa e o abandonaram na estação seca, ao contrário do observado em Fortaleza. Apenas 5% das col

  4. Balanço hídrico em solo com cultivos de subsistência no semi-árido do nordeste do Brasil Water budget in a soil with food crops in the semi-arid region of northeast Brazil

    Directory of Open Access Journals (Sweden)

    Antonio Celso Dantas Antonino

    2000-04-01

    Full Text Available Tendo em vista ser a água limitante e haver poucos estudos sobre o balanço hídrico em cultivos do semi-árido nordestino, instalou-se um experimento em Coxixola, PB, com quatro tratamentos (plantios de milho e de feijão, solo nu e com cobertura morta, parcelas de 7,7 x 10 m e espaçamento de plantio de 1,1 x 1,0 m. Foram medidos chuva, evaporação (Tanque "classe A" e armazenamento de água no solo (sonda de nêutrons. A chuva pouca (212 mm e mal distribuída causou restrição hídrica na parte final do experimento e foi responsável pelas baixas eficiências de uso de água e baixas produtividades do milho (grãos e biomassa total, 282 e 1141 kg ha-1 e do feijão (166 e 558 kg ha-1. Solo nu e com cobertura morta tiveram comportamento semelhante, com grandes perdas de água (1,57 e 1,48 mm dia-1, respectivamente e apenas pequenos aumentos nas lâminas armazenadas no perfil do solo, ao final do experimento (28 e 35 mm, respectivamente. O pequeno aumento e a dificuldade de obtenção de resíduos vegetais fazem com que esta cobertura morta não seja prática promissora na região.Considering that water is a limiting factor and there are few studies on water balance in the semi-arid Northeastern Brazil, an experiment was established at Coxixola, PB, Brazil, with four treatments (corn and beans crops, bare soil and soil covered with mulch, in plots of 7.7 x 10 m and plant spacing of 1.1 x 1.0 m. Rainfall, evaporation (Class A tank and soil water (neutron probe were monitored. Low (212 mm and irregular rainfall resulted in water deficit towards the final period of the experiment and was responsible for the low water use efficiencies and low productivity of corn (grain and total biomass, 282 and 1141 kg ha-1 and beans (166 and 558 kg ha-1. Bare soil and mulch had similar results, with high water losses, 1.57 and 1.48 mm day-1, respectively, and only small increases in stored soil water (28 and 35 mm, respectively were observed at the end of

  5. Brazils Role in environmental governance: Analysis of possibilities for increased Brazil-Norway cooperation

    Energy Technology Data Exchange (ETDEWEB)

    Valberg, Anna Helene

    2011-07-01

    This report examines the role played by Brazil in connection with certain international negotiations, such as the climate negotiations and the CBD. It identifies the driving factors that have influenced environmental politics and standards in Brazil, and take note of conflicts that must be discussed when Norway is seeking expanded cooperation with Brazil. In line with the mandate, FNI identifies areas of particular interest for further collaboration between the two countries, and recommend directions for supplementary Norwegian policy-making in light of a broadened scope for Norway-Brazil interaction. In recent years, the Norwegian government has initiated an extensive process aimed at reducing emissions from deforestation and forest degradation (REDD). This is the most obvious shared environmental scope between Norway and Brazil. However, given the large body of literature that already exists on this field, this report will concentrate instead on issues more on the outskirts of the REDD discourse, such as biodiversity conservation, biofuel efficiency and challenges concerning hydropower, all of which threaten to impact negatively on the Amazonian areas. In our recommendations, we cite tangible examples to illustrate issues where we believe lessons learnt in Norway may have applicability to Brazil.(auth)

  6. "Almost invisible scars": medical tourism to Brazil

    NARCIS (Netherlands)

    Edmonds, A.

    2011-01-01

    Along with a handful of other nations in the developing world, Brazil has emerged as a top destination for medical tourism. Drawing on the author’s ethnographic fieldwork in plastic surgery wards, this article examines diverse factors—some explicitly promoted in medical marketing and news sources, o

  7. Abortion in Brazil: legislation, reality and options.

    Science.gov (United States)

    Guedes, A C

    2000-11-01

    Abortion is illegal in Brazil except when performed to save the woman's life or in cases of rape. This paper gives a brief history of parliamentary and extra-parliamentary efforts to change abortion-related legislation in Brazil in the past 60 years, the contents of some of the 53 bills that have been tabled in that time, the non-governmental stakeholders involved and the debate itself in recent decades. The authorities in Brazil have never assumed full public responsibility for reproductive health care or family planning, let alone legal abortion; the ambivalence of the medical profession is an important obstacle. Most politicians avoid getting involved in the abortion debate, but the majority of bills in the 1990s have favoured less restrictive legislation. Incremental legislative and health service changes could help to improve the situation for women. Advocacy is probably the most important action, to promote an environment conducive to change. Clandestine abortion is a serious public health problem in Brazil, and the inadequacy of family planning services is one of the causes of this problem. The solutions should be made a priority for the Brazilian public health system.

  8. Brazil's new national policy on solid waste

    DEFF Research Database (Denmark)

    Jabbour, A.B.L.d.S.; Jabbour, C.J.C.; Sarkis, J.;

    2014-01-01

    Brazil, one of the world's largest developing countries, has recently introduced a new solid waste management regulatory policy. This new regulatory policy will have implications for a wide variety of stakeholders and sets the stage for opportunities and lessons to be learned. These issues...

  9. Dengue situation in Brazil by year 2000

    Directory of Open Access Journals (Sweden)

    Hermann G Schatzmayr

    2000-01-01

    Full Text Available Dengue virus types 1 and 2 have been isolated in Brazil by the Department of Virology, Instituto Oswaldo Cruz, in 1986 and 1990 respectively, after many decades of absence. A successful continental Aedes aegypti control program in the Americas, has been able to eradicate the vector in most countries in the 60's, but the program could not be sustained along the years. Dengue viruses were reintroduced in the American region and the infection became endemic in Brazil, like in most Central and SouthAmerican countries and in the Caribbean region, due to the weaning of the vector control programs in these countries. High demographic densities and poor housing conditions in large urban communities, made the ideal conditions for vector spreading. All four dengue types are circulating in the continent and there is a high risk of the introduction in the country of the other two dengue types in Brazil, with the development of large epidemics. After the Cuban episode in 1981, when by the first time a large epidemic of dengue hemorrhagic fever and dengue shock syndrome have been described in the Americas, both clinical presentations are observed, specially in the countries like Brazil, with circulation of more than one dengue virus type. A tetravalent potent vaccine seems to be the only possible way to control the disease in the future, besides rapid clinical and laboratory diagnosis, in order to offer supportive treatment to the more severe clinical infections.

  10. Assessing Higher Education Learning Outcomes in Brazil

    Science.gov (United States)

    Pedrosa, Renato H. L.; Amaral, Eliana; Knobel, Marcelo

    2013-01-01

    Brazil has developed an encompassing system for quality assessment of higher education, the National System of Higher Education Evaluation (SINAES), which includes a test for assessing learning outcomes at the undergraduate level, the National Exam of Student Performance (ENADE). The present system has been running since 2004, and also serves as…

  11. 76 FR 5822 - Orange Juice From Brazil

    Science.gov (United States)

    2011-02-02

    ... juice from Brazil (71 FR 12183). The Commission is conducting a review to determine whether revocation... 207), as most recently amended at 74 FR 2847 (January 16, 2009). \\1\\ No response to this request for...) (19 CFR 201.15(b)), 73 FR 24609 (May 5, 2008). This advice was developed in consultation with...

  12. Implementing the Schoolwide Enrichment Model in Brazil

    Science.gov (United States)

    de Souza Fleith, Denise; Soriano de Alencar, Eunice M. L.

    2010-01-01

    The Schoolwide Enrichment Model (SEM) has been one of the most widely used models in the education of the gifted in Brazil. It has inspired the political and pedagogical project of the Centers of Activities of High Abilities/Giftedness recently implemented in 27 Brazilian states by the Ministry of Education. In this article, our experience in…

  13. Reconstruction of Zika Virus Introduction in Brazil

    Science.gov (United States)

    Morrison, Kathryn; Brownstein, John S.; Marinho, Fatima; Santos, Alexandre F.; Nsoesie, Elaine O.

    2017-01-01

    We estimated the speed of Zika virus introduction in Brazil by using confirmed cases at the municipal level. Our models indicate a southward pattern of introduction starting from the northeastern coast and a pattern of movement toward the western border with an average speed of spread of 42 km/day or 15,367 km/year. PMID:27618573

  14. Climatic change in northeastern Brazil: paleoparasitological data

    Directory of Open Access Journals (Sweden)

    Adauto Araujo

    1993-12-01

    Full Text Available Trichuris eggs were observed in Kerodon rupestris coprolites dated 9,000 years before present, collected in archeological sites of São Raimundo Nonato, northeastern Brazil. However, present day local rodents seem not to be infected by the parasite, suggesting its disappearence due to climatic changes.

  15. IBM Brazil: and environmental modern view

    Energy Technology Data Exchange (ETDEWEB)

    Cremonesi, Valter [IBM Brasil, Industria, Maquinas e Servicos Ltda., Rio de Janeiro, Rj (Brazil)

    1993-12-31

    Information of practical experiences on Environmental Affairs at IBM Brazil plant and branch offices is presented, with a modern view of the mission, resources, support, waste management, monitoring programs, recycling, energy conservation, partners programs, nature preservation 2rograms, recognitions and image. (author). 4 figs., 2 tabs.

  16. Brazil--On the Road to Greatness.

    Science.gov (United States)

    1985-05-01

    plenty. fAn unforeseen blessing is the unemployment rates now being experienced in the large cities on the East Coast. They make a ready pool of labor...Brazil and in the Amazona delta, but nothing that would cause them to think their- worries are over. Purchases of oil have been cut back in the past

  17. From Political to Economic Siege in Brazil.

    Science.gov (United States)

    Academe, 1990

    1990-01-01

    Political forces in Brazil have caused significant economic changes, including hyperinflation, and policy that threaten higher education in a variety of ways, including failure to expand during a period of economic strength, severe loss of academic autonomy, lowering of academic and administrative standards, and declines in teacher education and…

  18. Brazil: The Lula Government and Financial Globalization

    Science.gov (United States)

    Bianchi, Alvaro; Braga, Ruy

    2005-01-01

    The electoral victory of Lu?s In?cio "Lula" da Silva in the presidential elections of 2002 epitomized two decades of social and political transformations in Brazil. Nevertheless, instead of launching an alternative mode of doing politics, the program of the Workers' Party affirmed a state logic with a view to gradually updating the economic…

  19. Pentecostalism and premarital sexual initiation in Brazil

    Directory of Open Access Journals (Sweden)

    Ana Paula A. Verona

    2014-06-01

    Full Text Available Pentecostal denominations in Brazil are recognized for their promotion of conservative norms and punitive sanctions related to the sexual behavior of their young members. Moreover, they have created unique space for their followers to actively participate in a religious environment. Using data from the PNDS-2006 (National Survey on the Demography and Health of Children and Women, Pesquisa Nacional de Demografia e Saúde da Criança e da Mulher de 2006, we examine the associations, in Brazil between religion, as measured by religious affiliation and attendance at religious services, and premarital adolescent sexual initiation. Our main results confirm a strong association between delay in sexual initiation and Pentecostalism in Brazil and suggest that this association be related to frequent attendance at religious services. These findings are intriguing, especially because Pentecostalism has emerged and concentrated among socioeconomically disadvantaged populations, including the least-educated women, with lower income, and residents of urban areas. We conclude by suggesting that religion may be taking the place of family and school in communication on adolescent sexual behavior in Brazil. This hypothesis should be carefully investigated, since the religious teachings may sometimes be in favor of what families and the state see as beneficial for adolescents and youth in general, but sometimes in disaccord.

  20. Communist Exploitation of Nationalism in Brazil

    Science.gov (United States)

    1966-04-08

    the crowd and prolonged cheers at his closing phrases: "We are all Brazilians.’" (Somos todos Brasileiros) , "Long live Brazil."’ (Viva o Brasil ...Jornal do Comercio , 6 Jan. 1952, p. 3. 30FBIS No. 51, 12 Mar. 1952, ZYC9 Rio de Janeiro, 12 Mar. 1952. 31FBIS No. 194, 5 Oct. 1953, PRL7 Rio de

  1. Technology and Terrorism in the Movie Brazil

    Science.gov (United States)

    Stivers, Richard

    2006-01-01

    The movie "Brazil" calls attention to the relationship between technology and terrorism. Terrorism appears to be a threat to the order that technology creates. But terrorism forces technology to adapt and change so that technology perfects itself as a system. In the movie, terrorism is equated with any form of bureaucratic deviance so that…

  2. Demand for fisheries products in Brazil

    Directory of Open Access Journals (Sweden)

    Daniel Yokoyama Sonoda

    2012-10-01

    Full Text Available Fish consumption per capita in Brazil is relatively modest when compared to other animal proteins. This study analyses the influence of protein prices, other food prices and population income on the fish demand in Brazil. First, the problem of fish supply in Brazil is characterized. It is followed by reviews of the relevant economic theory and methods of Almost Ideal Demand System - AIDS and their elasticity calculations. A descriptive analysis of fish demand in Brazil using the microdata called "Pesquisa de Orçamento Familiar" (Familiar Budget Research - POF 2002-2003 is presented. Finally, demand functions and their elasticities are calculated for two different cases: one considering five groups of animal proteins (Chicken; Milk and Eggs; Fish; Processed Proteins and Red Meat and other with seven groups of food categories (Cereals; Vegetables and Fruits; Milky and Eggs; Oils and Condiments; Fish; Other processed foods; and Meats. The main results are: per capita consumption of fish (4.6 kg per inhabitant per year is low in Brazil because few households consume fish. When only households with fish consumption are considered, the per capita consumption would be higher: 27.2 kg per inhabitant per year. The fish consumption in the North-East Region is concentrated in the low-income class. In the Center-South Region, the fish consumption is lower and concentrated in the intermediate income classes. The main substitutes for fish are the processed proteins and not the traditional types of meat, such as chicken and red meat.

  3. Brazil to Join the European Southern Observatory

    Science.gov (United States)

    2010-12-01

    The Federative Republic of Brazil has yesterday signed the formal accession agreement paving the way for it to become a Member State of the European Southern Observatory (ESO). Following government ratification Brazil will become the fifteenth Member State and the first from outside Europe. On 29 December 2010, at a ceremony in Brasilia, the Brazilian Minister of Science and Technology, Sergio Machado Rezende and the ESO Director General, Tim de Zeeuw signed the formal accession agreement aiming to make Brazil a Member State of the European Southern Observatory. Brazil will become the fifteen Member State and the first from outside Europe. Since the agreement means accession to an international convention, the agreement must now be submitted to the Brazilian Parliament for ratification [1]. The signing of the agreement followed the unanimous approval by the ESO Council during an extraordinary meeting on 21 December 2010. "Joining ESO will give new impetus to the development of science, technology and innovation in Brazil as part of the considerable efforts our government is making to keep the country advancing in these strategic areas," says Rezende. The European Southern Observatory has a long history of successful involvement with South America, ever since Chile was selected as the best site for its observatories in 1963. Until now, however, no non-European country has joined ESO as a Member State. "The membership of Brazil will give the vibrant Brazilian astronomical community full access to the most productive observatory in the world and open up opportunities for Brazilian high-tech industry to contribute to the European Extremely Large Telescope project. It will also bring new resources and skills to the organisation at the right time for them to make a major contribution to this exciting project," adds ESO Director General, Tim de Zeeuw. The European Extremely Large Telescope (E-ELT) telescope design phase was recently completed and a major review was

  4. Ehrlichiosis in Brazil Erliquiose no Brasil

    Directory of Open Access Journals (Sweden)

    Rafael Felipe da Costa Vieira

    2011-03-01

    Full Text Available Ehrlichiosis is a disease caused by rickettsial organisms belonging to the genus Ehrlichia. In Brazil, molecular and serological studies have evaluated the occurrence of Ehrlichia species in dogs, cats, wild animals and humans. Ehrlichia canis is the main species found in dogs in Brazil, although E. ewingii infection has been recently suspected in five dogs. Ehrlichia chaffeensis DNA has been detected and characterized in mash deer, whereas E. muris and E. ruminantium have not yet been identified in Brazil. Canine monocytic ehrlichiosis caused by E. canis appears to be highly endemic in several regions of Brazil, however prevalence data are not available for several regions. Ehrlichia canis DNA also has been detected and molecularly characterized in three domestic cats, and antibodies against E. canis were detected in free-ranging Neotropical felids. There is serological evidence suggesting the occurrence of human ehrlichiosis in Brazil but its etiologic agent has not yet been established. Improved molecular diagnostic resources for laboratory testing will allow better identification and characterization of ehrlichial organisms associated with human ehrlichiosis in Brazil.Erliquiose é uma doença causada por rickettsias pertencentes ao gênero Ehrlichia. No Brasil, estudos sorológicos e moleculares têm avaliado a ocorrência de espécies de Ehrlichia em cães, gatos, animais selvagens e seres humanos. Ehrlichia canis é a principal espécie em cães no Brasil, embora a infecção por E. ewingii tenha, recentemente, despertado suspeita em cinco cães. O DNA de E. chaffeensis foi detectado e caracterizado em cervo-do-pantanal, enquanto que E. muris e E. ruminantium ainda não foram identificadas no Brasil. A erliquiose monocítica canina causada pela E. canis parece ser altamente endêmica em muitas regiões do Brasil, embora dados de prevalência não estejam disponíveis em muitas delas. O DNA de E. canis também foi detectado e caracterizado

  5. A new species of Scymnobius Casey (Coleoptera, Coccinellidae, Scymnini from Pernambuco, Brazil

    Directory of Open Access Journals (Sweden)

    José Adriano Giorgi

    2014-12-01

    Full Text Available A new species of Scymnobius Casey (Coleoptera, Coccinellidae, Scymnini from Pernambuco, Brazil. Scymnobius pernambucensis sp. nov. from Pernambuco, Brazil, is described and illustrated. This is the third species of this genus recorded from Brazil.

  6. Canine vector-borne diseases in Brazil

    Directory of Open Access Journals (Sweden)

    Dantas-Torres Filipe

    2008-08-01

    Full Text Available Abstract Canine vector-borne diseases (CVBDs are highly prevalent in Brazil and represent a challenge to veterinarians and public health workers, since some diseases are of great zoonotic potential. Dogs are affected by many protozoa (e.g., Babesia vogeli, Leishmania infantum, and Trypanosoma cruzi, bacteria (e.g., Anaplasma platys and Ehrlichia canis, and helminths (e.g., Dirofilaria immitis and Dipylidium caninum that are transmitted by a diverse range of arthropod vectors, including ticks, fleas, lice, triatomines, mosquitoes, tabanids, and phlebotomine sand flies. This article focuses on several aspects (etiology, transmission, distribution, prevalence, risk factors, diagnosis, control, prevention, and public health significance of CVBDs in Brazil and discusses research gaps to be addressed in future studies.

  7. The legacy of monazite processing in Brazil.

    Science.gov (United States)

    da Costa Lauria, Dejanira; Rochedo, Elaine R R

    2005-01-01

    The exploitation of natural resources containing naturally occurring radionuclides may lead to enhanced levels of radioactive isotope and enhanced potential for exposure to naturally occurring radionuclides in products, by-products, residues or wastes. Such resources include, for instance, monazite, the processing of which, in Brazil, generated a great amount of radioactive residues, being stored in buried concrete tanks, in temporary storage buildings and in sealed trenches. In addition, during the 1980s there were no radiological protection rules concerning the storage and transportation of these kinds of residues. Mineral radioactive residues were used as landfills and the residues of chemical processes contaminated floors and buildings. The decommissioning process and cleaning of old plants have generated tons of wastes that has been added to previously produced wastes. This paper reports and discusses the cycle of monazite in Brazil and its consequences in terms of site remediation and amount of wastes and residues generated and stored.

  8. [Maternal mortality among black women in Brazil].

    Science.gov (United States)

    Martins, Alaerte Leandro

    2006-11-01

    Every minute a woman dies in the world due to labor or complications of pregnancy. Maternal mortality is a public health problem in Brazil and affects the country's various regions unequally. Researchers agree that maternal death occurs mainly in women with lower income and less schooling. The racial issue emerges in the midst of socioeconomic issues. The analysis is hampered by the difficulty in understanding Brazil's official classification of race/color, which often impedes recording this information. Various Maternal Mortality Committees are applying the color item and reviewing their data. The current article analyzes various Maternal Mortality Committee reports, showing that the risk of maternal mortality is greater among black women (which encompasses two census categories, negra, or black, and parda, or brown), thus representing a major expression of social inequality. The article concludes with a review of political and technical recommendations to decrease maternal mortality.

  9. [Toxicity and apple production in southern Brazil].

    Science.gov (United States)

    Klanovicz, Jó

    2010-03-01

    The article explores the links between the controversial apprehension of contaminated apples in southern Brazil in 1989 and the reactions of the apple industry to press reports on the use of pesticides in Brazilian orchards. The issue is framed within a broader analysis of the notions of toxicity and 'danger' surrounding the consumption of healthier food and the idea of 'food security,' notions that have begun taking hold in public and private life. It is argued that apple growers' responses to the problem can be better understood through a historical reading of the interactions between the biology of the apple tree, the agroecology of this monoculture, and the structures, actors, and discourses of the human and non-human groups in Brazil's apple-producing region.

  10. Inequality and School reform in Bahia, Brazil

    Science.gov (United States)

    Reiter, Bernd

    2009-07-01

    This article compares public and community schools in Salvador, the state capital of Bahia, Brazil. Based on quantitative data analysis and qualitative research conducted on-site during three research trips in 2001, 2003 and 2005, the author finds that Brazil's extreme inequality and the associated concentration of state power in a few hands stand in the way of an effective reform. In 1999, the state of Bahia started to reform its basic education cycle, but the author's research shows that Bahian elites use access to basic education to defend their inherited privilege. The analysis of community schools further demonstrates that inequality also blocks effective community and parental involvement in school management, as schools tend to distance themselves from neighbourhoods portrayed as poor and black, and thus "dangerous".

  11. Selaginella P. Beauv. from Minas Gerais, Brazil

    Directory of Open Access Journals (Sweden)

    Gustavo Heringer

    2016-03-01

    Full Text Available Selaginella P. Beauv. is the only genus in the family Selaginellaceae Willk. The genus is monophyletic, has a cosmopolitan distribution, contains about 750 species and can be characterized by the presence of rhizophores, leaves, a ligule, heterospory and adaxial, reniform sporangia. Twenty species were found in the study area: Selaginella alstonii, S. contigua, S. convoluta, S. decomposita, S. erectifolia, S. erythropus, S. flexuosa, S. jungermannioides, S. macrostachya, S. marginata, S. microphylla, S. muscosa, S. producta, S. sellowii, S. sematophylla, S. suavis, S. sulcata, S. tenella, S. tenuissima and S. vestiens. Two new species records for the state are presented (S. jungermannioides and S. tenella. We present descriptions of the genus and species, an identification key, the synonyms pertaining to Brazil, illustrations, and comments about the taxonomy and distribution of species in Brazil.

  12. Adequacy of public maternal care services in Brazil

    OpenAIRE

    2016-01-01

    Abstract Background In Brazil, hospital childbirth care is available to all, but differences in access and quality of care result in inequalities of maternal health. The objective of this study is to assess the infrastructure and staffing of publicly financed labor and birth care in Brazil and its adequacy according to clinical and obstetric conditions potentially associated with obstetric emergencies. Methods Nationwide cross-sectional hospital-based study “Birth in Brazil: national survey i...

  13. Developments in Latin America: The Temporary Staffing Industry in Brazil

    OpenAIRE

    Jennifer Watts

    2011-01-01

    While many countries are still struggling to escape the effects of the financial crisis, Brazil has experienced strong economic growth, providing a stimulus for further investment and temporary staffing agency expansion. This Working Brief aims to outline some of the developments that have occurred in the temporary staffing industry in Brazil. I briefly outline the regulatory context for temporary staffing in Brazil before highlighting the characteristics of the industry and detailing the eme...

  14. Restoring the Unwritten Alliance: Brazil-U.S. Relations

    Science.gov (United States)

    2013-01-01

    Brazil will be a huge opportunity lost for substantial economic trade and growth. Already Brazil has concluded Common Market of the South ( MERCOSUR ...similar. Another regional South American organization not mentioned in the NMS is MERCOSUR , in which Brazil has become the natural leader due to its...proactively working to solve problems. UNASUR, MERCOSUR , and even the Community of Latin American and Carib- bean States are potential U.S. partners

  15. Record of Diglyphus walker (Hymenoptera: Eulophidae) species in Brazil.

    Science.gov (United States)

    Carvalho, A R; Bueno, V H P; Silva, D B; Costa, V A

    2011-01-01

    Leafminers (Diptera: Agromyzidae) are pests of various crops, mainly in greenhouses, and have Diglyphus spp. as important leafminer larval parasitoids. Until recently, only Diglyphus insularis (Gahan) had been reported in Brazil. In here we report the first records of Diglyphus begini (Ashmead), D. intermedius (Girault) and D. isaea (Walker) in Brazil. These parasitoids were found parasitizing leafminer larvae on cultivated and spontaneous plants in some areas of Minas Gerais state, Brazil.

  16. Globalization and formal sector migration in Brazil

    OpenAIRE

    Aguayo-Tellez, Ernesto; Muendler, Marc-Andreas; Poole, Jennifer Pamela

    2008-01-01

    We use novel linked employer–employee data to study the relationship between globalization and formal sector interstate migration for Brazil. We estimate the worker’s multichoice migration problem and document that previously unobserved employer covariates are significant predictors associated with migration flows. Our results provide support for the idea that globalization acts on internal migration through the growth of employment opportunities at locations with a high concentration of fore...

  17. Perspectives on bioenergy and biotechnology in Brazil.

    Science.gov (United States)

    Pessoa-Jr, Adalberto; Roberto, Inês Conceição; Menossi, Marcelo; dos Santos, Raphael Revert; Filho, Sylvio Ortega; Penna, Thereza Christina Vessoni

    2005-01-01

    Brazil is one of the world's largest producers of alcohol from biomass at low cost and is responsible for more than 1 million direct jobs. In 1973, the Brazilian Program of Alcohol (Proalcool) stimulated the creation of a bioethanol industry that has led to large economic, social, and scientific improvements. In the year 1984, 94.5% of Brazil's cars used bioethanol as fuel. In 2003/2004, 350.3 million of sugarcane produced 24.2 million t of sugar and 14.4 billion L of ethanol for an average 4.3 million cars using ethanol. Since its inception, cumulative investment in Proalcool totals US$11 billion, and Brazil has saved US$27 billion in oil imports. The ethanol production industry from sugarcane gene-rates 152 times more jobs than would have been the case if the same amount of fuel was produced from petroleum, and the use of ethanol as a fuel is advantageous for environmental reasons. In 2003, one of the biggest Brazilian ethanol industries started consuming 50% of the residual sugarcane bagasse to produce electrical energy (60 MW), a new alternative use of bioenergy for the Brazilian market. Other technologies for commercial uses of bagasse are in development, such as in the production of natural fibers, sweeteners (glucose and xylitol), single-cell proteins, lactic acid, microbial enzymes, and many other products based on fermentations (submerged and semisolid). Furthermore, studies aimed at the increase in the biosynthesis of sucrose and, consequently, ethanol productivity are being conducted to understand the genetics of sugarcane. Although, at present, there remain technical obstacles to the economic use of some ethanol industry residues, several research projects have been carried out and useful data generated. Efficient utilization of ethanol industry residues has created new opportunities for new value-added products, especially in Brazil, where they are produced in high quantities.

  18. Carbonatite complexes from Brazil: A review

    Science.gov (United States)

    Gomes, C. B.; Ruperti, E.; Morbidelli, L.

    This paper reviews general aspects regarding the occurrences of alkaline rocks associated with carbonatites in Brazil. Currently twenty-two complexes are listed in the literature, but only a few have been thoroughly studied. Special attention is given to the geological association and geochronology of such rocks, and petrological problems are only briefly discussed as a consequence of insufficient information. Data on mineral resources are also provided for some complexes. Eight occurrence are being mined, particularly for phosphate and niobium.

  19. Physical activity in Brazil: a systematic review

    OpenAIRE

    Dumith,Samuel C

    2009-01-01

    The purpose of this study, based on a systematic literature review, was to describe the prevalence of physical activity (or inactivity) in the Brazilian population. The databases consulted were: LILACS, SciELO, MEDLINE, Web of Science, and the Google Scholar portal. The terms "physical activity", "physical exercise", "physical inactivity", "sedentary" "Brazil", and "Brazilian" were used in the search. Overall, 47 studies (all cross-sectional) with random samples were found, and in 26 studies ...

  20. Ecological assessment of a southeastern Brazil reservoir

    OpenAIRE

    Martins,Isabela; Sanches,Barbara; Kaufmann,Philip Robert; Hughes,Robert M.; Santos,Gilmar Bastos; Molozzi,Joseline; Callisto, Marcos

    2015-01-01

    Reservoirs are artificial ecosystems with multiple functions having direct and indirect benefits to humans; however, they also cause ecological changes and influence the composition and structure of aquatic biota. Our objectives were to: (1) assess the environmental condition of Nova Ponte Reservoir, Minas Gerais state, southeastern Brazil; and (2) determine how the aquatic biota respond to disturbances. A total of 40 sites in the littoral zone of the reservoir were sampled to characterize ph...

  1. Thimerosal: current sources of contact in Brazil*

    Science.gov (United States)

    Rocha, Vanessa Barreto; Scherrer, Maria Antonieta Rios

    2014-01-01

    Thimerosal is an organic mercury derivative found in ophthalmic solutions and certain vaccines in Brazil. Although most studies suggest the prevalence of thimerosal sensitivity to be quite high, this condition does not currently have any clinical relevance. The present article surveyed 184 Brazilian products (151 topical medications and 33 vaccines) and found that thimerosal was only present in 3 ophthalmic solutions and 5 vaccines. PMID:24770530

  2. Coal prep in Brazil: the Polish approach

    Energy Technology Data Exchange (ETDEWEB)

    Zilli, C.B.

    1988-02-01

    With one exception, all coal mined in Brazil is washed at the pit head because of its high dirt content. Since the early 1970s five complete coal preparation plants have been designed and constructed by a consortium, using Polish technology. Among the changes effected by the Polish engineers was the introduction of Polish designed equipment. These have led to several small modifications on the usual flowsheet design, which have increased recoveries. 4 figs.

  3. Brazil and the Vital South Atlantic

    Science.gov (United States)

    1988-09-01

    Brasileiro, Conferencia Mundial de Energia. Recursos Fnergeticos do Brasil. Rio de Janeiro, Brazil. Maio, 1970. Carvalho Filho, Milton X. As Con ferencios...Weekly, p. 42-45 London 7 April 1984 Dzidzienyo, Anani. Relaciones Africanas y Latino Americanos Contemnporaneas: Problemas y Perspectivas. Brown...un problema que se vislumbra. The Johns Hopkins University School of Advanced lnternatio~ial Studies. Washington, DC. 14 March 1978 Herzberg, Robert

  4. Quidgest internationalization strategic plan to Brazil

    OpenAIRE

    Ramos, Maria do Rosário Pinto de Mesquita Ortigão

    2012-01-01

    A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics An International Strategic Plan to Brazil is the subject of this work project. The author studies the prospect of the Portuguese company Quidgest increasing its international presence. Quidgest is a software consultant that develops Enterprise Resource Planning (ERP) systems. After an extensive analysis focused on Brazil’s economy, business ...

  5. Frontier Security: The Case of Brazil

    Science.gov (United States)

    2016-08-01

    for Strategic Research ( CSR ), Institute for National Strategic Studies (INSS), at the National Defense Univeristy. He is a specialist on Western...Case of Brazil, CSR Strategic Perspective 20 (NDU Press, July 2016), is the fourth essay in the series. Mr. Cope also guided to publication Hal...Klepak’s Reflections on U.S.-Cuba Military-to-Military Contacts, Strategic Fo- rum 295 (NDU Press, July 2016). Mr. Cope has numerous CSR Event Reports from

  6. THE BACHELOR OF BIOCHEMISTRY IN BRAZIL

    Directory of Open Access Journals (Sweden)

    H. G. Cordeiro

    2015-08-01

    Full Text Available INTRODUCTION: The economic and social development of Brazil in the last decade has contributed to the installation of new graduate and undergraduate programs, as are the case with bachelor degrees in Biochemistry at UFV, UFSJ and UEM. These graduates are prepared to work in industry, research institutes and universities in areas of knowledge involving Biochemistry and Molecular Biology. This is happening in developed countries since the first half of the last century, surprising and late is the implementation of bachelor of Biochemistry in Brazil. OBJECTIVES: The aim of this study was to perform a comparative analysis of the Bachelor in Biochemistry in Brazil from the perspective of the main difficulties of implementing and courses maintenance. MATERIAL AND METHODS: This is a descriptive research with a qualitative approach. Interviews were conducted with undergraduate students, graduates, professors, staff and managers from bachelor degrees in Biochemistry at UFV, UFSJ and UEM. The sampling procedure was non probabilistic for judgment (choice of the subjects involved and interested in the course of biochemistry to undergraduate students, graduates, professors and staff and non probabilistic for convenience to managers. The qualitative assessment to depict the representative keywords was performed using words cloud by WordleTM. RESULTS: The study included 5 managers, 24 professors, 12 staff, 25 undergraduate students, 5 graduates. For the students the main reason for the course selection should be scientific vocation and affinity with chemistry and biology; most cited positive parameters were faculty and great structure, practical classes and broad playing field; most cited negatives were high mandatory disciplines, little student free time and lack of sophisticated equipment. Despite the conception of the programs have happened in different contexts and regions we noted similarities deficiencies and distresses. CONCLUSION: Difficulties must be

  7. Solidarity Economy Networks: the Case of Brazil

    OpenAIRE

    Castilla-Carrascal, Ivette Tatiana

    2014-01-01

    This article presents reflections (resulting from a Master’s dissertation in sociology) about diversecontributions by the solidarity economy networks in the construction of a solidarity market in Brazil.The first part of the article is a discussion about the different characteristics of the networks in terms ofmore general social theories, such as networks in the field of the solidarity economy. The second partbriefly characterizes the Redes Bodega, acs Amazonia, Rede Ecovida, Central do Cerr...

  8. Potential Intake Of Intense Sweeteners In Brazil.

    OpenAIRE

    Toledo, M C; Ioshi, S H

    2015-01-01

    A survey of intense sweetener intakes was carried out in the winter of 1990 and summer of 1991 in Brazil. Data on the potential intake of the intense sweeteners aspartame, cyclamate and saccharin were generated, based on a representative sample of 673 individuals who completed a questionnaire designed to collect information on demographic details and habitual usage of sweetener-containing food and drinks. The respondents were randomly chosen among intense sweetener consumers living the cities...

  9. Transaction costs in beans market in Brazil

    Directory of Open Access Journals (Sweden)

    Paulo Eterno Venâncio Assunção

    2015-05-01

    Full Text Available This paper aimed to evaluate the presence of transaction costs in the beans market in Brazil. Therefore, threshold autoregressive (TAR models were used to check co-integration and the existence of transaction costs in the Brazilian beans market. The results confirmed the presence of transaction costs in the beans market, which are mainly related to the freight component of production, since the markets are often far away from the producing regions.

  10. Dynamics of Cattle Production in Brazil.

    Science.gov (United States)

    McManus, Concepta; Barcellos, Júlio Otávio Jardim; Formenton, Bruna Krummenauer; Hermuche, Potira Meirelles; Carvalho, Osmar Abílio de; Guimarães, RenatoFontes; Gianezini, Miguelangelo; Dias, Eduardo Antunes; Lampert, Vinícius do Nascimento; Zago, Daniele; Neto, José Braccini

    2016-01-01

    Movement of livestock production within a country or region has implications for genetics, adaptation, well-being, nutrition, and production logistics, particularly in continental-sized countries, such as Brazil. Cattle production in Brazil from 1977 to 2011 was spatialized, and the annual midpoint of production was calculated. Changes in the relative production and acceleration of production were calculated and spatialized using ARCGIS®. Cluster and canonical discriminant analyses were performed to further highlight differences between regions in terms of cattle production. The mean production point has moved from the Center of Minas Gerais State (in the southeast region) to the North of Goiás State (in the Midwest region). This reflects changes in environmental factors, such as pasture type, temperature and humidity. Acceleration in production in the northern region of Brazil has remained strong over the years. More recently, "traditional" cattle-rearing regions, such as the south and southeast, showed a reduction in growth rates as well as a reduction in herd size or internal migration over the period studied. These maps showed that this movement tends to be gradual, with few regions showing high acceleration or deceleration rates.

  11. Brazil's Market for Trading Forest Certificates.

    Science.gov (United States)

    Soares-Filho, Britaldo; Rajão, Raoni; Merry, Frank; Rodrigues, Hermann; Davis, Juliana; Lima, Letícia; Macedo, Marcia; Coe, Michael; Carneiro, Arnaldo; Santiago, Leonardo

    2016-01-01

    Brazil faces an enormous challenge to implement its revised Forest Code. Despite big losses for the environment, the law introduces new mechanisms to facilitate compliance and foster payment for ecosystem services (PES). The most promising of these is a market for trading forest certificates (CRAs) that allows landowners to offset their restoration obligations by paying for maintaining native vegetation elsewhere. We analyzed the economic potential for the emerging CRA market in Brazil and its implications for PES programs. Results indicate a potential market for trading 4.2 Mha of CRAs with a gross value of US$ 9.2±2.4 billion, with main regional markets forming in the states of Mato Grosso and São Paulo. This would be the largest market for trading forests in the world. Overall, the potential supply of CRAs in Brazilian states exceeds demand, creating an opportunity for additional PES programs to use the CRA market. This expanded market could provide not only monetary incentives to conserve native vegetation, but also environmental co-benefits by fostering PES programs focused on biodiversity, water conservation, and climate regulation. Effective implementation of the Forest Code will be vital to the success of this market and this hurdle brings uncertainty into the market. Long-term commitment, both within Brazil and abroad, will be essential to overcome the many challenges ahead.

  12. The genesis of collective health in Brazil.

    Science.gov (United States)

    Vieira-da-Silva, Ligia Maria; Pinell, Patrice

    2014-03-01

    During the 1970s in Brazil a social space directed towards health problems on the population level, called collective health, was created and institutionalised. To what extent did this Brazilian invention correspond to a specific socio-historical practice? The works published on this topic have considered social medicine as a homogeneous phenomenon without empirically studying the specificities of national experiences. To bridge this gap, a historical study on the genesis of collective health in Brazil was carried out based on Bourdieu's field theory. The interaction between the paths of the founders and the conditions of historical possibilities were researched through documentary and bibliographical sources, as well as through in-depth interviews of the founders. This social space originated from a meeting of agents with different social backgrounds but who interconnected, creating a structure that was independent of each agent considered individually. One of the components of this establishment was the joining of theoretical production and the implementation of health reforms that resulted in the organisation of a universal health system. This study attempts to show how the international political situation and the contradictions of the national crisis created a universe of possibilities, allowing for the genesis of this sui generis space in Brazil.

  13. Mortality by sickle cell disease in Brazil.

    Science.gov (United States)

    Arduini, Giovanna Abadia Oliveira; Rodrigues, Letícia Pinto; Trovó de Marqui, Alessandra Bernadete

    This work aimed to characterize mortality by sickle cell disease in Brazil. The MEDLINE electronic database was searched using the terms 'mortality' and 'sickle cell disease' and 'Brazil' for articles published in the last five years aiming to provide a current analysis of the subject in question. Eight studies on mortality by sickle cell disease were carried out in the Brazilian states of Maranhão, Bahia, Minas Gerais, Rio de Janeiro and Mato Grosso do Sul. The majority of the deaths occurred in patients with sickle cell anemia, which is the most common genotype and causes the most severe clinical manifestation of the disease. In summary, there are few published studies on mortality related to sickle cell disease in Brazil, and most are from the state of Minas Gerais. This study emphasizes the importance of developing more studies on sickle cell disease mortality, so that it may be possible to profile gene carriers and give health professionals more data to strategize the delivery of more effective assistance to these individuals. Despite the early diagnosis of sickle cell disease by the Neonatal Screening Program and the use of preventive and therapeutic measures (penicillin, immunization and hydroxyurea), mortality by sickle cell disease on the world stage is still significant.

  14. Cardiovascular Health in Brazil: Trends and Perspectives.

    Science.gov (United States)

    Ribeiro, Antonio Luiz P; Duncan, Bruce B; Brant, Luisa C C; Lotufo, Paulo A; Mill, José Geraldo; Barreto, Sandhi M

    2016-01-26

    Brazil is a large country, with an evolving economy, but marked social inequalities. The population is formed by an admixture of native Brazilians, Europeans, and Africans; is predominantly urban; and faces rapid aging. Time trends related to health behaviors show a substantial reduction in smoking rates, but a rising prevalence of overweight and obesity, unhealthy eating habits, and insufficient physical activity. The high prevalence of hypertension and the increasing prevalence of diabetes mellitus are also causes for concern. Cardiovascular disease (CVD) has been the leading cause of mortality since the 1960s and has accounted for a substantial percentage of all hospitalizations. In 2011, CVD was responsible for 31% of all deaths, with ischemic heart disease (31%) and cerebrovascular diseases (30%) being the leading CVD causes. Despite an increase in the overall number of CVD deaths, the age-adjusted mortality rates for CVD declined 24% between 2000 and 2011. Health care delivered by Brazil's universal public health system, which focuses on primary prevention, has contributed to this achievement. However, the decline in age-adjusted mortality differs according to race, sex, and socioeconomic status with black individuals and lower-income populations sustaining the greatest impact of CVD, especially at younger ages. With one of the world's largest public health systems in terms of population coverage, Brazil has the means to implement actions to confront the high burden of CVD, focusing on health promotion and comprehensive care. Insufficient funding, low education levels, and social inequalities remain as the main barriers to be overcome.

  15. Hyperinflation in Brazil, Israel, and Nicaragua revisited

    Science.gov (United States)

    Szybisz, Martín A.; Szybisz, Leszek

    2017-01-01

    The aim of the present work is to address the description of hyperinflation regimens in economy. The spirals of hyperinflation developed in Brazil, Israel, and Nicaragua are revisited. This new analysis of data indicates that the episodes occurred in Brazil and Nicaragua can be understood within the frame of the model available in the literature, which is based on a nonlinear feedback (NLF) characterized by an exponent β > 0. In the NLF model the accumulated consumer price index carries a finite time singularity of the type 1 /(tc - t) (1 - β) / β determining a critical time tc at which the economy would crash. It is shown that in the case of Brazil the entire episode cannot be described with a unique set of parameters because the time series was strongly affected by a change of policy. This fact gives support to the "so called" Lucas critique, who stated that model's parameters usually change once policy changes. On the other hand, such a model is not able to provide any tc in the case of the weaker hyperinflation occurred in Israel. It is shown that in this case the fit of data yields β → 0. This limit leads to the linear feedback formulation which does not predict any tc. An extension for the NLF model is suggested.

  16. Bioethics and Christian theology in Brazil.

    Science.gov (United States)

    Dos Anjos, Márcio Fabri; Lepargneur, Hubert François

    2008-01-01

    A Christian theology is important to bioethics in Brazil not only because Brazil is a country of strong Christian traditions, but also because of its theological method and because of many practices in their Christian communities. In fact, the interaction within practice and theory is a big point of its methodology. A heritage of a long history of colonialism in South America comes to our times as enormous social inequalities. In such a context, the silent cry of poor people is heard as a question of coherence to the Christian faith and to the neighbor love. Through a constant dialog with human sciences, the method of theology, known as liberation theology, seeks the roots of social inequalities and the alternatives to a movement of spiritual and social liberation. In touch with the modern bioethics, this theology has strongly contributed to understand all the questions of bioethics in the frame of social structures and systems. On the other hand, many actual practices of the Catholic Church in Brazil with popular impact, like its annual Fraternity Campaign, develop social themes and problems that are also big concerns of bioethics. In this article we try to expose some aspects of this dialog, where theology has a well considered contribution to Brazilian bioethics, at the same time his religious discourse is open to interact with a lay discourse.

  17. "Health for All" in England and Brazil?

    Science.gov (United States)

    Duncan, Peter; Bertolozzi, Maria Rita; Cowley, Sarah; Egry, Emiko Yoshikawa; Chiesa, Anna Maria; de Siqueira França, Francisco Oscar

    2015-01-01

    This article discusses the achievements and challenges that England and Brazil face in relation to their capacity to address inequalities in health through health promotion and public health policies. Using secondary data (policy texts and related documents), this article contextualizes, explains, and critically appraises health promotion and public health efforts for the reduction of inequalities in health in the 2 countries. A historic documentary analysis was undertaken, with hermeneutics as the methodological framework. The global economic crisis has prompted the so-called developed economies of Europe to reconsider their economic and social priorities. England represents a state facing this kind of challenge. Equally, Brazil is assuming new positions not only on the world stage but also in terms of the relationship it has with its citizens and the priorities it has for state welfare. The United Kingdom continues to finance a health care system allowing universal access in the form of the National Health Service, and state concern about the public health task of reducing inequalities has recently been underlined in policy. For Brazil, although there have been recent achievements related to population access to healthcare, challenges continue, especially with regard to the quality of care.

  18. Review of plant biogeographic studies in Brazil

    Institute of Scientific and Technical Information of China (English)

    Pedro FIASCHI; José R. PIRANI

    2009-01-01

    Molecular phylogenetic studies have become a major area of interest in plant systematics, and their impacts on historical biogeographic hypotheses are not to be disregarded. In Brazil, most historical biogeographic studies have relied on animal phylogenies, whereas plant biogeographic studies have largely lacked a phylogenetic component, having a limited utility for historical biogeography. That country, however, is of great importance for most biogeographic studies of lowland tropical South America, and it includes areas from a number of biogeographic regions of the continent. Important biogeographic reports have been published as part of phylogenetic studies, taxonomic monographs, and regional accounts for small areas or phytogeographic domains, hut the available information is subsequently scattered and sometimes hard to find. In this paper we review some relevant angiosperm biogeographic studies in Brazil. Initially we briefly discuss the importance of other continents as source areas for the South American flora. Then we present a subdivision of Brazil into phytogeographic domains, and we cite studies that have explored the detection of biogeographic units (areas of endemism) and how they are historically related among those domains. Examples of plant taxa that could be used to test some biogeographic hypotheses are provided throughout, as well as taxa that exemplify several patterns of endemism and disjunction in the Brazilian angiosperm flora.

  19. PCATool-ADULT-BRAZIL: a reduced version

    Directory of Open Access Journals (Sweden)

    Mônica Maria Celestina de Oliveira

    2013-09-01

    Full Text Available The reorganization of the Brazilian health system brings the need for on-going evaluation of the services offered to the population. The Primary Care Assessment Tool (PCATool-Brazil version for adult users, validated for the Brazilian context, adequately measures the presence and extent of attributes of primary health care (PHC services. A reduced version of this instrument is required to optimize the process of implementation and use of the results in strategic actions. This article aims to present a reduced version of the PCATool-Brazil for adult users and analyze its suitability. The instrument was applied to 2404 adult residents of areas covered by primary health care (PHC units in Porto Alegre, Rio Grande do Sul state. By the two-parameter logistic model of Item Response Theory (ML-2, 23 items that presented discrimination classified as moderate to strong, contemplating the seven attributes of PHC, were selected. As a measure of consistency, the results obtained with this version were compared with the complete version, revealing consistent PHC scores. These findings indicate that the PCATool-Brazil reduced version for adult users presents adequate validity and reliability, and it can be adopted as a rapid assessment tool to evaluate PHC in Brazilian services, permitting decision making guided by evidence in the development of actions to improve the quality of care offered to the population.

  20. SMART GRID: Evaluation and Trend in Brazil

    Directory of Open Access Journals (Sweden)

    Ricardo Moreira da Silva

    2014-09-01

    Full Text Available The Smart Grid is considered the most promising conglomerate of technology to be applied for the improvement and optimization of all power production in electrical engineer. Smart Grid's concept is being more and more recognized for its importance for representing a way to meliorate the energetic efficiency of the electric system, reducing consumption, allowing intensive use of energy generation renewable sources. Therefore, the goal of this article is to explore and present Smart Grid's concepts and its global evolution, so as perform an assessment on Smart Grid's tendencies in Brazil. In order to do this, we shown the concepts of Smart Grid, its benefits and impacts in the electric system's value chain, the barriers to its diffusion in Brazil and the paths of investments' incentives for deployment of the new technology. Accordingly, we reach the conclusion that the researches point to a long and challenging trajectory for the development and implantation of Smart Grid's technology in Brazil, which is still in a embryonic phase of pilot projects for the knowledge and technology development implantation.

  1. Bolivia-Brazil gas line route detailed

    Energy Technology Data Exchange (ETDEWEB)

    1992-05-11

    This paper reports that state oil companies of Brazil and Bolivia have signed an agreement outlining the route for a 2,270 km pipeline system to deliver natural gas from Bolivian fields to Southeast Brazil. The two sides currently are negotiating details about construction costs as well as contract volumes and prices. Capacity is projected at 283-565 MMcfd. No official details are available, but Roberto Y. Hukai, a director of the Sao Paulo engineering company Jaako Poyry/Technoplan, estimates transportation cost of the Bolivian gas at 90 cents/MMBTU. That would be competitive with the price of gas delivered to the Sao Paulo gas utility Comgas, he the. Brazil's Petroleos Brasileiro SA estimates construction of the pipeline on the Brazilian side alone with cost $1.2-1.4 billion. Bolivia's Yacimientos Petroliferos Fiscales Bolivianos (YPFB) is negotiating with private domestic and foreign investors for construction of the Bolivian portion of the project.

  2. The problems of nutrition in Brazil.

    Science.gov (United States)

    Sanders, T G

    1982-01-01

    Low income is the factor most often associated with the existence of malnutrition. Malnutrition in Brazil is more frequently found among Brazilians with less than 2 minimum salaries/family and who live in the less developed parts of the country. In 1976, 59.2% of urban residents earned 2 or less minimum salaries. A study found that those rural residents engaged in agriculture on their own or someone else's property were better paid than those who live from salaried labor alone; temporary salaried workers are the largest rural class in Brazil and have the lowest levels of nutrition. In urban areas the informal sector represent the lowest nutrition level group. The issue of food consumption by the lower classes is linked to 4 aspects of Brazilian development: 1) structure of food production, 2) distribution of income, 3) government attempts to influence prices and marketing systems, and 4) the role of government food supplementation programs. Brazil suffers today from unbalanced growth among its various economic sectors and regions, inequitable income distribution, and inadequate public services. The misconception of the necessity of a large industrial base for development resulted in the neglect of the rural sector and thus higher malnutrition. Recent regulatory efforts by the government have begun to increase rural production, but production of agricultural exports has increased at a much more rapid pace than that of domestic food commodities. Small farmers have not taken advantage of new financial opportunities offered by the government to balance production levels because: 1) banks do not have enough for the demand, 2) access to the small producer of foods is difficult, and 3) the present hesitation to risk his few possessions. The largest percentage of income in Brazil goes to the richest classes and the economy is oriented towards meeting the demands of the more prosperous classes. The government's program of minimum support prices has not been successful in

  3. Geração do deflúvio de uma microbacia com Mata Atlântica, Cunha, SP. Runoff generation in a small catchment with Atlantic Rainforest, Cunha, SP, Brazil.

    Directory of Open Access Journals (Sweden)

    Maurício RANZINI

    2011-12-01

    Full Text Available Este trabalho teve como escopo estudar a resposta do deflúvio a eventos deprecipitação de uma microbacia experimental (37,5 ha com Mata Atlântica, localizadano Laboratório de Hidrologia Florestal Walter Emmerich, no Parque Estadual da Serrado Mar – Núcleo Cunha, SP. O escoamento direto foi de 8,3% da precipitação anual.A resposta do deflúvio à precipitação mostrou uma variabilidade de hidrogramas,que dependeu da magnitude da precipitação e das condições de umidade antecedente do solo.De um modo geral, os hidrogramas tenderam grosseiramente a reproduzir a precipitação(hietograma. Foram identificados dois grupos de hidrogramas de acordo com a relação entre aprecipitação e o pico de vazão. No primeiro, a contribuição do escoamento de base foi pequena,com o escoamento direto dominando o hidrograma e a área variável de afluência (A.V.A..No segundo grupo, um acréscimo na precipitação produziu um aumento no pico de vazãomesmo durante as chuvas mais intensas, sugerindo que a A.V.A. ocupou uma menor parte damicrobacia, próxima ao curso d’água. Esses resultados indicaram que a umidade antecedentedo solo foi importante para a resposta do deflúvio à precipitação.This paper studied the response of runoff to rainstorm events of a smallexperimental catchment (37.5 ha with Atlantic Rainforest. The Forest HydrologicalLaboratory, at Cunha, is located in the Serra do Mar State Park, SE Brazil. The total volume ofstormflow is 8.3% of annual rainfall. The response of runoff to rainfall showed a variability ofthe hydrographs, which depended on intensity of the precipitation and soil humidity conditionsbefore the flood. In general, the hydrographs tended to roughly reproduce the shape of therainstorm. It was identified two groups of hydrographs, separated according to the quotientbetween rainfall and peak flow. At first, the contribution of base flow was low, with the directrunoff hydrograph dominating and the variable source

  4. Diversity and structure of Ephemeroptera, Plecoptera and Trichoptera (Insecta assemblages from riffles in mountain streams of Central Brazil Diversidade e estrutura de comunidades de Ephemeroptera, Plecoptera e Trichoptera (Insecta em riachos de montanha do Brasil Central

    Directory of Open Access Journals (Sweden)

    Pitágoras C. Bispo

    2007-06-01

    Full Text Available The diversity and structure of Ephemeroptera, Plecoptera and Trichoptera (EPT assemblages in streams of Central Brazil (Serra dos Pireneus, Pirenópolis, State of Goiás was investigated. Abundance data of EPT were obtained in Central-West Brazilian streams in order to evaluate the effect of spatial variability, including the effect of size of the stream and anthropic action, and seasonality (dry and rainy seasons on faunal diversity and structure. The immatures were collected with circular sieves (0. 5 mm mesh during one hour at five collection stations over 14 months. From a spatial point of view, the data showed that anthropic action determined the patterns of diversity whereas the size of streams (1st and 3rd-4th orders determined the faunistic composition. In addition, environmental seasonality was an important factor for structuring the EPT fauna.A diversidade e a estrutura de comunidades de Ephemeroptera, Plecoptera e Trichoptera (EPT em riachos do Brasil Central (Serra dos Pireneus, Pirenópolis, Estado de Goiás foi investigada. Dados de abundância de EPT foram obtidos em trechos de corredeira de riachos do Centro Oeste Brasileiro com o objetivo de avaliar o efeito da variabilidade espacial, incluindo o efeito do tamanho do riacho e da ação antrópica, e da sazonalidade (seca e chuva sobre a diversidade e a estrutura faunística. Os imaturos foram coletados mensalmente com redes circulares (0,5 mm de malhas por uma hora em cinco pontos de coleta durante 14 meses. Do ponto de vista espacial, os dados do presente trabalho mostraram que a ação antrópica determinou os padrões de diversidade, enquanto que o tamanho dos riachos (1ª e 3-4ª ordens determinou a composição faunística. Aliado a isso, a sazonalidade ambiental foi um fator importante para a estruturação da fauna de EPT.

  5. Monitoring of Lutzomyia longipalpis Lutz & Neiva, 1912 in an area of intense transmission of visceral leishmaniasis in Rio Grande do Norte, Northeast Brazil Monitoramento de Lutzomyia longipalpis Lutz & Neiva, 1912 em área de transmissão intensa de leishmaniose visceral no Rio Grande do Norte, Nordeste do Brasil

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    Sthenia Santos Albano Amóra

    2010-03-01

    Full Text Available Urban increase of visceral leishmaniasis (VL in Brazil is associated with the adaptation of its vector, Lutzomyia longipalpis, to environments modified by humans. The present study reports the results of an entomological monitoring of L. longipalpis and the effect of environmental variables on its population density. Sandflies were captured in the municipality of Mossoró, State of Rio Grande do Norte, Northeastern Brazil, from January 2005 to December 2006. Two CDC light traps were placed monthly for four consecutive nights in the peridomicile of selected households. Data analysis was based on the chi-square test and linear regression. A total of 2,087 sandflies were captured, 99.86% of which were L. longipalpis. A higher proportion of females were captured (p No Brasil, o crescimento urbano da leishmaniose visceral (LV está associado com a adaptação do seu vetor, Lutzomyia longipalpis, aos ambientes modificados pelo homem. Este estudo relata a vigilância entomológica de L. longipalpis e os efeitos das variáveis ambientais sobre a sua densidade populacional. Os flebotomíneos foram capturados no município de Mossoró, Rio Grande do Norte, no Nordeste do Brasil, a partir de janeiro de 2005 a dezembro de 2006. Duas armadilhas tipo CDC foram colocadas mensalmente durante quatro noites consecutivas no peridomicílio das casas escolhidas. A análise dos dados foi baseada no teste Qui-quadrado e regressão linear. Um total de 2.087 flebotomíneos foram capturados, dos quais 99,86% foram L. longipalpis. Mais fêmeas do que machos foram capturados (p < 0,05. Na análise mensal das variáveis ambientais a temperatura, umidade relativa e a chuva não tiveram impacto significativo sobre a densidade populacional de L. longipalpis. No entanto, houve diferenças sazonais: aproximadamente 70% dos flebotomíneos foram capturados durante a estação chuvosa (p < 0,05. Assim, L. longipalpis, a espécie predominante, representa um risco à saúde p

  6. Basic Education in Brazil: What's Wrong and How to Fix It. Thinking Brazil. No. 25

    Science.gov (United States)

    Woodrow Wilson International Center for Scholars, 2007

    2007-01-01

    While Brazil has successfully achieved universal access to basic education, the quality of education remains stubbornly low. A recent study by the Instituto de Pesquisa Economica Aplicada (IPEA) shows that the average 25 years old Brazilian has completed only nine years of education. Almost eleven percent of the population is illiterate and a…

  7. Danish wind power in Brazil. Part 1. The future of wind power in Brazil - market analysis

    Energy Technology Data Exchange (ETDEWEB)

    Husted Rich, N.

    1996-04-01

    More than 95% of total energy produced in Brazil comes from highly efficient hydroelectric power plants but, faced with a serious shortage of energy after the year 2000, the country is now considering wind energy as one of the basic alternatives for energy supply. It is suggested that biomass, wind energy and biogas may be included in a future supply policy for the north-east region of the land. The structure of, the privatisation, legislation and the tariff system within the Brazilian power sector are described in addition to the present situation regarding wind energy in the country, including current and coming projects in this field, the excellent wind conditions in Northeastern Brazil and investment possibilities. The political activities in this field of the Danish Folkecenter for Renewable Energy are noted and future developments in Brazil are discussed. It is concluded that there are good prospects for Danish windmill technology on the Brazilian market. Wind measurement programs are presently being carried out in various areas of the country, though a number of impediments to the development of wind energy in Brazil remain. (AB)

  8. Distinct Zika Virus Lineage in Salvador, Bahia, Brazil.

    Science.gov (United States)

    Naccache, Samia N; Thézé, Julien; Sardi, Silvia I; Somasekar, Sneha; Greninger, Alexander L; Bandeira, Antonio C; Campos, Gubio S; Tauro, Laura B; Faria, Nuno R; Pybus, Oliver G; Chiu, Charles Y

    2016-10-01

    Sequencing of isolates from patients in Bahia, Brazil, where most Zika virus cases in Brazil have been reported, resulted in 11 whole and partial Zika virus genomes. Phylogenetic analyses revealed a well-supported Bahia-specific Zika virus lineage, which indicates sustained Zika virus circulation in Salvador, Bahia's capital city, since mid-2014.

  9. Type 2 diabetes in Brazil: epidemiology and management

    Directory of Open Access Journals (Sweden)

    Almeida-Pititto B

    2015-01-01

    Full Text Available Bianca de Almeida-Pititto,1 Monike Lourenço Dias,2 Ana Carolina Franco de Moraes,3 Sandra RG Ferreira,3 Denise Reis Franco,4 Freddy Goldberg Eliaschewitz4,5 1Department of Preventive Medicine, Federal University of São Paulo, São Paulo, Brazil; 2Department of Endocrinology, Federal University of Goiás, Goiânia, Goiás, Brazil; 3Department of Epidemiology, School of Public Health, University of São Paulo, São Paulo, Brazil; 4CPClin Clinical Research Center, 5Albert Einstein Hospital, São Paulo, Brazil Abstract: Type 2 diabetes mellitus (T2DM is one of the most important epidemic diseases in the world this century, and accounts for 90% of cases of diabetes globally. Brazil is one of the most important examples of the alarming picture of T2DM in emergent societies, being the country with the fourth largest number of people with diabetes. The aim of this paper is to review the literature on diabetes in Brazil, specifically looking at the epidemiology and management of T2DM. A literature search was conducted using PubMed and LILACS to identify articles containing information on diabetes in Brazil. Official documents from the Brazilian government, World Health Organization, and International Diabetes Federation were also reviewed. Keywords: type 2 diabetes, Brazil, epidemiology, management

  10. Brazil - Improving Fiscal Circumstances for Growth : Volume 2. Main Report

    OpenAIRE

    World Bank

    2007-01-01

    This document is part of a series of reports by the World Bank on Brazil's potential to foment more robust economic growth and reduce poverty and inequality. The main focus of this report is on the interrelated fiscal circumstances facing Brazil, with an emphasis on public sector spending. The report is divided into two volumes. This first volume distills the essential stylized facts (that...

  11. Publishing, Books and Library Resources: Brazil and Argentina.

    Science.gov (United States)

    National Book Committee, Inc., New York, NY.

    This survey synthesizes and analyzes the book resources and book requirements of Brazil, with particular reference to the educational scene, in terms of local production and distribution resources and capabilities. Information on the geography, political establishment, economy, and educational system of Brazil is presented in the introductory…

  12. Reframing Agrarian Citizenship: Land, Life and Power in Brazil

    Science.gov (United States)

    Wittman, Hannah

    2009-01-01

    This paper investigates the changing relationship between land, citizenship, and power in Brazil, where land-related policies have historically served to situate political and economic rights in the hands of an elite land-owning minority. In response, contemporary grassroots movements in Brazil, including the Landless Rural Workers Movement…

  13. Distinct Zika Virus Lineage in Salvador, Bahia, Brazil

    Science.gov (United States)

    Naccache, Samia N.; Thézé, Julien; Sardi, Silvia I.; Somasekar, Sneha; Greninger, Alexander L.; Bandeira, Antonio C.; Campos, Gubio S.; Tauro, Laura B.; Faria, Nuno R.; Pybus, Oliver G.

    2016-01-01

    Sequencing of isolates from patients in Bahia, Brazil, where most Zika virus cases in Brazil have been reported, resulted in 11 whole and partial Zika virus genomes. Phylogenetic analyses revealed a well-supported Bahia-specific Zika virus lineage, which indicates sustained Zika virus circulation in Salvador, Bahia’s capital city, since mid-2014. PMID:27448188

  14. Organic carbon stocks in the soils of Brazil

    NARCIS (Netherlands)

    Batjes, N.H.

    2005-01-01

    Soil organic carbon stocks to 1 m for Brazil, calculated using an updated Soil and Terrain (SOTER) database and simulation of phenoforms, are 65.9-67.5 Pg C, of which 65% is in the Amazonian region of Brazil. Other researchers have obtained similar gross results, despite very different spatial patte

  15. Climate Change Education for Sustainability in Brazil: A Status Report

    Science.gov (United States)

    Trajber, Rachel; Mochizuki, Yoko

    2015-01-01

    This article maps and explains Brazil's policies, strategies, plans and initiatives related to Climate Change Education (CCE), in the overall context of Environmental Education (EE) and Education for Sustainable Development (ESD). The case of Brazil offers useful insights on how to enhance climate response through education because of its unique…

  16. Genetic diversity of Ehrlichia canis in Brazil.

    Science.gov (United States)

    Aguiar, D M; Zhang, X; Melo, A L T; Pacheco, T A; Meneses, A M C; Zanutto, M S; Horta, M C; Santarém, V A; Camargo, L M A; McBride, J W; Labruna, M B

    2013-06-28

    Canine monocytic ehrlichiosis is a highly prevalent disease in Brazil, where the genetic diversity of Ehrlichia canis remains undefined. In this study, we used the TRP36 gene to examine the genetic diversity of E. canis strains from naturally infected dogs residing in five distinct geographic regions in Brazil. E. canis DNA was detected in 82/126 (65%) dogs by dsb-specific PCR and E. canis was isolated in cell culture from 13 dogs. Sequences obtained from dsb genes amplified from the isolates were identical to the US E. canis strain. An extended molecular characterization based on the TRP36 gene identified two major genogroups based on differences among eight isolates. Isolates with tandem repeat amino acid sequence (TEDSVSAPA) identical to the previously reported TRP36 sequence were found in the midwest, northeast and southeast regions of Brazil, and classified into the US genogroup. A novel Brazilian genotype with a different tandem repeat sequence (ASVVPEAE) was also identified in midwest, northern and southern regions. Similarity in the N-terminal sequence of a US genogroup member with the Brazilian genogroup suggested that genomic recombination between the two genogroups may have occurred. Other subtypes within the Brazilian genogroup were also identified using C-terminal amino acid divergence. We identified two distinct major Brazilian genogroups and several subtypes based on analysis of TRP36, and such information will be useful for further genotyping and possible associations with disease severity, understanding of the genetic and antigenic variability of E. canis, and for developing strain-specific vaccines and diagnostic methods based on TRP36.

  17. Revisiting the use of condoms in Brazil

    Directory of Open Access Journals (Sweden)

    Inês Dourado

    2015-09-01

    Full Text Available ABSTRACTIntroduction:It is known that a single prevention strategy is not enough to control multiple HIV epidemics around the world and in Brazil. However, it is not only necessary to recognize the importance of condoms as part of the policy of HIV/AIDS prevention but also discuss its limits. In this article, we aim to investigate the use of condoms in Brazil, draw critical reflections, and understand how they can once again be highlighted in Brazil's prevention strategy going forward.Methods:A narrative review of literature was conducted using keywords in PubMed. Reports from national surveys that guide the epidemiological and behavioral surveillance of the Brazilian Ministry of Health were also included.Results:A total of 40 articles and 3 reports were included in the review and 11 intervention studies to promote the condom use; the main findings were as follows: 1 Despite the increase in national studies on sexual behavior, little attention is given to the role of condom use; 2 There are few studies examining the factors associated with condom use among key populations such as men who have sex with men (MSM, female sex workers (FSW, drug users (DU, and transvestites and transexuals (TT, while substantial studies focus on adolescents and women; 3 Evidence suggests that a combination of interventions is more effective.Discussion:new prevention technologies must not lose sight of the critical importance of condoms, and efforts to reintroduce them should focus on the role of pleasure in addition to their potential to minimize the risk of HIV.

  18. Epidemiologic study on penile cancer in Brazil

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    Luciano A. Favorito

    2008-10-01

    Full Text Available OBJECTIVES: To assess epidemiologic characteristics of penile cancer in Brazil. MATERIALS AND METHODS: From May 2006 to June 2007, a questionnaire was distributed to all Brazilian urologists. Their patients' clinical and epidemiological data was analyzed (age, race, place of residence, history of sexually transmitted diseases, tobacco smoking, performance of circumcision, type of hospital service, as well as the time between the appearance of the symptoms and the diagnosis, the pathological characteristics of the tumor (histological type, degree, localization and size of lesion, stage of disease, the type of treatment performed and the present state of the patient. RESULTS: 283 new cases of penile cancer in Brazil were recorded. The majority of these cases occurred in the north and northeast (53.02% and southeast (45.54% regions. The majority of patients (224, or 78.96% were more than 46 years of age while only 21 patients (7.41% were less than 35 years of age. Of the 283 patients presenting penile cancer, 171 (60.42% had phimosis with the consequent impossibility to expose the glans. A prior medical history positive for HPV infection was reported in 18 of the 283 cases (6.36%. In 101 patients (35.68% tobacco smoking was reported. The vast majority of the cases (n = 207; 73.14% presented with tumors localized in the glans and prepuce. In 48 cases (16.96% the tumor affected the glans, the prepuce and the corpus penis; in 28 cases (9.89% the tumor affected the entire penis. The majority of the patients (n = 123; 75.26% presented with T1 or T2; only 9 patients (3.18% presented with T4 disease. CONCLUSION: Penile cancer is a very frequent pathology in Brazil, predominantly affecting low income, white, uncircumcised patients, living in the north and northeast regions of the country.

  19. Nasal mites of Tyrannidae (Aves in Brazil

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    MM. Mendes

    Full Text Available A total of 81 Tyraniidae birds were examined, 80 Pitangus sulphuratus (Linnaeus, 1766 (Great kiscadee, and one Machetornis rixosa (Vieilot, 1819 (Cattle tyrant, for collection of nasal mites, which were identified as Ptilonyssus spinosus (Brooks & Strandtmann, 1960 and Sternostoma longisetosae (Hyland, 1961 (Rhinonyssidae. This finding characterises the first report of P. spinosus and S. longisetosae in P. sulphuratus, and the first record of P. spinosus in M. rixosa, and expands the geographic distribution of these species. It is the first occurrence of S. longisetosae in the Neotropics, and the first citation of P. spinosus in the state of Rio Grande do Sul, Brazil.

  20. Selective abortion in Brazil: the anencephaly case.

    Science.gov (United States)

    Diniz, Debora

    2007-08-01

    This paper discusses the Brazilian Supreme Court ruling on the case of anencephaly. In Brazil, abortion is a crime against the life of a fetus, and selective abortion of non-viable fetuses is prohibited. Following a paradigmatic case discussed by the Brazilian Supreme Court in 2004, the use of abortion was authorized in the case of a fetus with anencephaly. The objective of this paper is to analyze the ethical arguments of the case, in particular the strategy of avoiding the moral status of the fetus, the cornerstone thesis of the Catholic Church.

  1. The Costs of Displacement in Brazil

    OpenAIRE

    Naercio Menezes-Filho

    2004-01-01

    This paper uses new data that combines information on workers’ education and earnings trajectories with information about their firms to estimate the costs of job displacement in Brazil. We find that high-tenure workers displaced from their firms during mass lay-offs suffer a long-term loss in monthly wages of about 20% per year. We show that this result is robust to different treatment of workers that leave the formal sector of the economy and is driven by the losses suffered by more educa...

  2. Helminths parasites of whales in Brazil

    Directory of Open Access Journals (Sweden)

    Luís C. Muniz-Pereira

    1999-01-01

    Full Text Available Three species of whale Balaenoptera borealis Lesson, 1828, B. physalus (Linnaeus, 1758 and Physeter catodon Linnaeus, 1758 captured in the Brazilian coast were necropsied for helminths. Balaenoptera borealis and B. physalus were infected by Crassicauda crassicauda (Nematoda, Tetrameridae and Ogmogaster antarcticus (Digenea: Notocotylidae, which are referred for the first time in Brazil. Balaenoptera borealis was also infected by Lecithodesmus goliath (Digenea, Campulidae and Bolbosoma turbinella (Acanthocephala, Polymorphidae. Physeter catodon was infected by Anisakis physeteris (Nematoda, Anisakidae, which is a new record to this host in Brazilian waters.

  3. Thirteen new records of ferns from Brazil

    Directory of Open Access Journals (Sweden)

    Thais Almeida

    2015-02-01

    Full Text Available Thirteen fern species are reported for the first time for Brazil. Among the new records, eight are from Acre state (Cyathea subincisa, Cyclodium trianae, Elaphoglossum stenophyllum, Hypoderris brauniana, Pleopeltis stolzei, Thelypteris arcana, Thelypteris comosa, Thelypteris valdepilosa, two are from Pará state (Polypodium flagellare, Tectaria heracleifolia, one from Minas Gerais state (Alsophila salvinii, one from Ceará state (Campyloneurum costatum and one from Bahia state (Thelypteris rolandii. Part of the species shows a disjunct occurrence or illustrates floristic relations between Brazilian and Andean Mountains or Central American Mountains.

  4. Jean-Baptiste Charcot and Brazil.

    Science.gov (United States)

    Teive, Hélio Afonso Ghizoni; Lima, Carlos Frederico Leite de Souza; Lima, Plínio Marcos Garcia de; Germiniani, Francisco Manoel Branco; Munhoz, Renato Puppi

    2014-08-01

    Jean-Baptiste Charcot, a neurologist from the famous Salpêtrière school and a renowned maritime explorer, visited Brazil twice. The first visit was in 1903, when the first French Antarctic expedition, traveling aboard the ship Français, made a very short stopover in Recife, in the state of Pernambuco. The second took place in 1908, during the famous voyage of the Pourquoi Pas? to the Antarctic, when Charcot and his crew stayed in the city of Rio de Janeiro for eight days.

  5. Jean-Baptiste Charcot and Brazil

    Directory of Open Access Journals (Sweden)

    Hélio Afonso Ghizoni Teive

    2014-06-01

    Full Text Available Jean-Baptiste Charcot, a neurologist from the famous Salpêtrière school and a renowned maritime explorer, visited Brazil twice. The first visit was in 1903, when the first French Antarctic expedition, traveling aboard the ship Français, made a very short stopover in Recife, in the state of Pernambuco. The second took place in 1908, during the famous voyage of the Pourquoi Pas? to the Antarctic, when Charcot and his crew stayed in the city of Rio de Janeiro for eight days.

  6. The "hot money" phenomenon in Brazil

    Directory of Open Access Journals (Sweden)

    Mylène Gaulard

    2012-09-01

    Full Text Available Because of its high interest rates, Brazil attracts more and more speculative capital flows, called "hot money", under the form of foreign loans, direct or portfolio investments. Actually, the country is directly involved in a carry-trade strategy that tends to appreciate the real, what penalizes the Brazilian exportations of manufactured products. Moreover, capital inflows are extremely volatile, and their departure, causing a fall in loans granted to the Brazilian private banks, could provoke a dangerous burst of the speculative bubble they have contributed to form in the Brazilian real estate sector.

  7. Molecular epidemiology of dengue viruses in Brazil

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    Rita Maria Ribeiro Nogueira

    2000-01-01

    Full Text Available Dengue viruses (DEN are found as four antigenically distinct serotypes designated DEN-1, 2, 3, and 4. Laboratory evidence that strain-intratypical variation occurs among DEN viruses has been demonstrated since the 1970s, although only with the advances in molecular technologies has it been possible to determine the genetic variability of each serotype. Genotypical identification has proven to be a useful tool for determining the origin and spread of epidemics and to correlate virulence of strains. In this report we present the results of molecular epidemiological studies with the DEN-1 and DEN-2 viruses that caused dengue epidemics in Brazil during the last decade.

  8. Hashtags Functions in the Protests Across Brazil

    Directory of Open Access Journals (Sweden)

    Raquel Recuero

    2015-05-01

    Full Text Available In this article, we discuss the communicative functions of hashtags during a period of major social protests in Brazil. Drawing from a theoretical background of the use of Twitter and hashtags in protests and the functions of language, we extracted a sample of 46,090 hashtags from 2,321,249 tweets related to Brazilian protests in June 2013. We analyzed the hashtags through content analysis, focusing on functions, and co-occurrences. We also qualitatively analyzed a group of 500 most retweeted tweets to understand the users’ tagging behavior. Our results show how users appropriate tags to accomplish different effects on the narrative of the protests.

  9. Cutaneous pythiosis in horses from Brazil.

    Science.gov (United States)

    Meireles, M C; Riet-Correa, F; Fischman, O; Zambrano, A F; Zambrano, M S; Ribeiro, G A

    1993-01-01

    Equine pythiosis was studied in five animals from two farms located in a swampy region of southern Brazil (Rio Grande do Sul State). Granulomatous lesions exuding necrotic material and containing a central yellow and firm tissue core, the 'kunker', were observed on the top of the nose of one horse, on the abdomen of two horses and on the hind limbs of two other animals. Direct microscopic preparations, histopathological examination of lesion material, and macroscopic and microscopic characteristics of the isolates confirmed the diagnosis of pythiosis. Surgical intervention of the inflammatory processes, intravenous potassium iodide and topical application of copper sulphate were used without success.

  10. Botulism in non-ruminants in Brazil

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    Carlos Augusto de Oliveira Júnior

    Full Text Available ABSTRACT: Botulism is an intoxication caused by the ingestion of neurotoxins secreted by Clostridium botulinum and characterized by progressive flaccid symmetrical paralysis. Among non-ruminant animals, avian species and dogs are the most commonly affected by botulism, while horses and pigs are less-commonly diagnosed with the disease. Despite the importance of this disease in animals, the Brazilian literature only includes case studies and outbreak descriptions. The aim of this study was to review the main features and to provide recent data on the occurrence of botulism in non-ruminants in Brazil.

  11. Deforestation in Brazil: motivations, journeys and tendencies

    Science.gov (United States)

    Leite, J. C.; Ferreira, A. J. D.; Esteves, T. C. J.; Bento, C. P. M.

    2012-04-01

    José Carlos Leite1; António José Dinis Ferreira2; Tanya Cristina de Jesus Esteves2; Célia Patrícia Martins Bento2 1Universidade Federal de Mato Grosso, Brazil; 2IPC - Escola Superior Agrária de Coimbra, Portugal Over the last three decades, deforestation in Brazil occurred systematically in the area known as the "arc of deforestation", an extensive geographical area located in the interface of the Cerrado and the Amazon biomes. This work encompasses the reasons, causes and/or motivations of that recent deforestation, focusing on the Central-West and Northern regions. A number of reasons will be presented, seeking to build an approach able to identify the deepest roots of deforestation of those regions. Our actions over the environment are framed by our cultural matrix that stream from a western philosophic attitude. This way, to understand the framework where the deforestation actions are justified requires a multidisciplinary approach to understand the deforestation of the Cerrado and Amazon biomes, since the motivations for forest destruction in Brazil are complex and not entirely understood within the domains of a single disciplinary area. To search for an isolated cause to understand the recent deforestation can only be plausible if we ignore information on what actually happens. The methodology used in this work is based on a bibliographical revision, analysis of georeferrenced information, participative processes implementation and observation of stakeholder behavior, and field research. It departs from a general vision on deforestation that initially occurred at the littoral region, by the Atlantic Rainforest, right after the arrival of the Europeans, and throughout the centuries penetrates towards the interior, hitting the Cerrado and Amazon biomes. In this last case, we focused on the Vale do Alto Guaporé region, near Bolivia, where the intensity of the deforestation was verified from 1970 to 1990. Ultimately, the final result is a mosaic of reasons

  12. Catholic populism and education in Brazil

    Science.gov (United States)

    Paiva, Vanilda

    1995-05-01

    Education in Brazil has been profoundly affected by populism, a movement which extols the virtue of the oppressed classes and opposes the traditional teacherstudent relationship. This movement has antecedents in nineteenth-century Russian writers such as Herzen and Bakunin. The author shows how populist ideas, often merging with Marxism, were adopted by many Brazilian Catholics from the 1950s onwards, under the influence of Vieira Pinto, Paulo Freire and others. In the realm of education this often led to an extreme form of anti-authoritarianism. While not denying certain positive aspects of this movement, the author argues that its position is fundamentally self-contradictory.

  13. Scrapping Maroon history : Brazil's promise, Suriname's shame

    Directory of Open Access Journals (Sweden)

    Richard Price

    1998-07-01

    Full Text Available Argues that all American nations except Suriname now provide legal protection for its indigenous/Maroon populations. Demonstrates that successive Suriname governments have been pursuing an increasingly militant and destructive policy against both Maroons and indigenous communities. Calls for rapid legislation, to bring Suriname's constitution and legal code in line with the various human rights and ecological treaties to which the country is party. Also reviews recent work on remnants of quilombos in Brazil, which often uses research on Caribbean Maroon communities as implicit or explicit models.

  14. 75 FR 22370 - Certain Frozen Warmwater Shrimp From Brazil, Ecuador, India, the People's Republic of China...

    Science.gov (United States)

    2010-04-28

    ... Value: Certain Frozen and Canned Warmwater Shrimp From Brazil, 69 FR 76910 (December 23, 2004) (Brazil... Than Fair Value and Antidumping Duty Order: Certain Frozen Warmwater Shrimp from Brazil, 70 FR 5143... International Trade Administration Certain Frozen Warmwater Shrimp From Brazil, Ecuador, India, the...

  15. Coccidioidomycosis in Brazil. A case report

    Directory of Open Access Journals (Sweden)

    MARTINS Marilena dos Anjos

    1997-01-01

    Full Text Available Coccidioidomycosis is an endemic infection with a relatively limited geographic distribution: Mexico, Guatemala, Honduras, Colombia, Venezuela, Bolivia, Paraguai, Argentina and the southwest of the United States. In these countries, the endemic area is restricted to the semiarid desert like regions which are similar to the northeast of Brazil. Case report: The patient is a 32 year-old male, born in the state of Bahia (Northeast of Brazil and has been living in São Paulo (Southeast for 6 years. He was admitted at Hospital das Clínicas, at the Department of Pneumology in October 1996, with a 6 month history of progressive and productive cough, fever, malaise, chills, loss of weight, weakness and arthralgia in the small joints. Chest x-rays and computerized tomography disclosed an interstitial reticulonodular infiltrate with a cavity in the right upper lobe. The standard potassium hydroxide preparation of sputum and broncoalveolar lavage demonstrated the characteristic thickened wall spherules in various stages of development. Sabouraud dextrose agar, at 25° C and 30° C showed growth of white and cottony aerial micelium. The microscopic morphology disclosed branched hyphae characterized by thick walled, barrel shaped arthroconidia alternated with empty cells. The sorological studies with positive double immunodiffusion test, and also positive complement fixation test in 1/128 dilution confirmed the diagnosis. The patient has been treated with ketoconazole and presents a favorable clinical and radiological evolution

  16. Forensic entomology and main challenges in Brazil.

    Science.gov (United States)

    Gomes, Leonardo; Von Zuben, Cláudio J

    2006-01-01

    Apart from an early case report from China (13th century), the first observations on insects and other arthropods as forensic indicators were documented in Germany and France during mass exhumations in the 1880s by Reinhard, who is considered a co-founder of the discipline. After the French publication of Mégnin's popular book on the applied aspects of forensic entomology, the concept quickly spread to Canada and United States. At that time, researchers recognized that the lack of systematic observations of insects of forensic importance jeopardized their use as indicators of postmortem interval. General advances in insect taxonomy and ecology helped to fill this gap over the following decades. After World Wars, few forensic entomology cases were reported in the scientific literature. From 1960s to the 1980s, Leclercq and Nuorteva were primarily responsible for maintaining the method in Central Europe, reporting isolated cases. Since then, basic research in the USA, Russia and Canada opened the way to the routine use of Entomology in forensic investigations. Identifications of insects associated with human cadavers are relatively few in the literature of the Neotropical region and have received little attention in Brazil. This article brings an overview of historic developments in this field, the recent studies and the main problems and challenges in South America and mainly in Brazil.

  17. Workaholism in Brazil: measurement and individual differences.

    Science.gov (United States)

    Romeo, Marina; Yepes-Baldó, Montserrat; Berger, Rita; Netto Da Costa, Francisco Franco

    2014-01-01

    The aim of this research is the measurement and assessment of individual differences of workaholism in Brazil, an important issue which affects the competitiveness of companies. The WART 15-PBV was applied to a sample of 153 managers from companies located in Brazil, 82 (53.6%) women and 71 (46.4%) men. Ages ranged from 20 to 69 years with an average value of 41 (SD=9.06). We analyzed, on one hand, the factor structure of the questionnaire, its internal consistency and convergent (with the Dutch Work Addiction Scale - DUWAS) and criterion validity (with General Health Questionnaire – GHQ). On the other hand, we analyzed individual gender differences on workaholism. WART15-PBV has good psychometric properties, and evidence for convergent and criterion validity. Females and males differed on Impaired Communication / Self-Absorption dimension. This dimension has a direct effect only on men’s health perception, while Compulsive tendencies dimension has a direct effect for both genders. The findings suggest the WART15-PBV is a valid measure of workaholism that would contribute to the workers’ health and their professional and personal life, in order to encourage adequate conditions in the workplace taking into account workers’ individual differences.

  18. [Historical evolution of package inserts in Brazil].

    Science.gov (United States)

    Caldeira, Telma Rodrigues; Neves, Eugênio Rodrigo Zimmer; Perini, Edson

    2008-04-01

    In Brazil, package inserts provide key information on pharmaceuticals. The current study analyzes the evolution of package inserts and the impact on this process by scientific research and development, globalization of information, and various health policies. The study began with a retrospective review of Brazilian health legislation until 1920, the year when the National Public Health Department was created. The analysis of documents on the evolution of health regulation in Brazil began with the Brazilian Pharmaceutical Collection-Health Rulings. The second stage of the study involved a search of standards and norms in VISALEGIS: Health Surveillance Legislation, Portal for Legislation from the National Congressional Information System and the Health Legislation System. Package inserts became an important vehicle for information in the country and underwent important regulatory changes in the latter half of the 20th century. From 1946 to 2006, the number of mandatory items increased, with more in-depth description. However, the standardization of information for medicines with the same active ingredient failed to materialize, despite its importance and the various legal initiatives in this direction.

  19. Brazil's Mixed Public and Private Hospital System.

    Science.gov (United States)

    Lewis, Maureen; Penteado, Evandro; Malik, Ana Maria

    2015-01-01

    Brazil's hospital sector is vibrant and growing. Under the 1988 Brazilian constitution all citizens have the right to health care, anticipating the global commitment to Universal Health Care. Brazil's public sector prides itself on having one of the world's largest single payer health care systems, but complementing that is a significant and larger private sector that is seeing big increase in investment, utilization and prices. This article outlines the structure of the hospital system and analyzes the nature and direction of private health sector expansion. Twenty-six percent of Brazilians have private health insurance and although coverage is concentrated in the urban areas of the Southeastern part of the country, it is growing across the nation. The disease burden shift to chronic diseases affects the nature of demand and the directly affects overall health care costs, which are rising rapidly outstripping national inflation by a factor of 3. Increasingly costs will have to be brought under control to maintain the viability of the private sector. Adaption of integrated care networks and strengthening of the public reimbursement system represent important areas for improvement.

  20. Analysis of medicine advertisement produced in Brazil.

    Directory of Open Access Journals (Sweden)

    Wzorek LF

    2007-09-01

    Full Text Available Objective: To analyze the compliance of drug advertisements with regulations in Brazil, subject to Resolution RDC No. 102/2000 since 2000, which abides by the WHO’s (World Health Organization Ethical Criteria for Medicinal Drug Promotion, published in 1988. Methods: Drug advertisements running within the period of October 2002 to October 2003 were collected and recorded. Media sources included various AM and FM radio stations, television channels, newspapers, and magazines, as well as printed material distributed in doctors’ offices, hospitals, drugstores, conferences, billboards, and bus doors. All sources were located in Curitiba City, Brazil, and its surrounding area. Advertisement content was analyzed according to a conformity checklist prepared based on the legal requirements of RDC No. 102/00. Results: A total of 827 advertisements for 517 different products, 83.91% regularly registered as medicinal drugs and 16.09% unregistered products that should be registered according to the Brazilian regulations, were recorded and collected. Approximately 74.73% of the advertisements did not comply with regulations; on average, such advertisements had 4.6 infractions each. Conclusions: The results of this research suggest that RDC No. 102/00 is not followed, which strengthens the need to adopt new forms of regulation to prohibit excesses of the pharmaceutical industry and to protect the population from abusive and misleading drug advertising.

  1. Dynamics of Sheep Production in Brazil

    Directory of Open Access Journals (Sweden)

    Samuel Rezende Paiva

    2013-07-01

    Full Text Available Sheep production is present on all continents and has been practiced in Brazil since the colonization. In this study, the multitemporal dynamics of sheep production in Brazil is examined using official government data (Brazilian Institute for Geography and Statistics-IBGE from 1976 to 2010. Maps of flock growth rates and growth acceleration maps by municipality were elaborated. The Southern states are seen to show a reduction in production mainly due to the wool crisis in the 1970s and 80s. The Northeast is seen to be important for meat production. More recently, centerwest and northern states have shown an increase in growth rates but this is still incipient. The maps of growth, acceleration and midpoint for sheep production showed a noticeable return to an increase in production in the South in recent years. The midpoint of production flow was in the northeast direction, which has stagnated. There was great dynamics in sheep production over the whole Brazilian territory, which affected supply chains due to the expansion of domestic and foreign markets. Areas with higher fluctuations in production are more vulnerable in terms of investment policies.

  2. Pediatric allergy and immunology in Brazil.

    Science.gov (United States)

    Rosario-Filho, Nelson A; Jacob, Cristina M; Sole, Dirceu; Condino-Neto, Antonio; Arruda, Luisa K; Costa-Carvalho, Beatriz; Cocco, Renata R; Camelo-Nunes, Inês; Chong-Neto, Herberto J; Wandalsen, Gustavo F; Castro, Ana P M; Yang, Ariana C; Pastorino, Antonio C; Sarinho, Emanuel S

    2013-06-01

    The subspecialty of pediatric allergy and immunology in Brazil is in its early years and progressing steadily. This review highlights the research developed in the past years aiming to show the characteristics of allergic and immunologic diseases in this vast country. Epidemiologic studies demonstrated the high prevalence of asthma in infants, children, and adolescents. Mortality rates and average annual variation of asthma hospitalization have reduced in all pediatric age groups. Indoor aeroallergen exposure is excessively high and contributes to the high rates of allergy sensitization. Prevalence of food allergy has increased to epidemic levels. Foods (35%), insect stings (30%), and drugs (23%) are the main etiological agents of anaphylaxis in children and adolescents. Molecular diagnosis of primary immunodeficiencies (PID) showed a high incidence of fungal infections including paracoccidioidomycosis in X-linked hyper-IgM syndrome, and the occurrence of BCG adverse reactions or other mycobacterial infections in patients with chronic granulomatous disease. Education in pediatric allergy and immunology is deficient for medical students, but residency programs are effective in training internists and pediatricians for the practice of allergy. The field of PID requires further training. Last, this review is a tribute to Prof. Dr. Charles Naspitz, one of the pioneers of our specialty in Brazil.

  3. [Retrospect of tuberculosis control in Brazil].

    Science.gov (United States)

    Hijjar, Miguel Aiub; Gerhardt, Germano; Teixeira, Gilmário M; Procópio, Maria José

    2007-09-01

    The aim of the study was to look back on the course of action involving measures of tuberculosis control in Brazil since the end of the 19th century, covering the history of social struggles and pointing out institutions and people that have dedicated themselves to looking for solutions to these issues. The Brazilian response to tuberculosis started in society with the Ligas Contra a Tuberculose (Leagues Against Tuberculosis), promoting scientific advances, such as the BCG vaccination, which begun in 1927. From the public power, the Inspetoria de Profilaxia da TB (TB Prophylaxis Inspection Service - 1920), the Serviço Nacional de Tuberculose (National Service of Tuberculosis - 1940), and the Campanha Nacional Contra a Tuberculose (National Campaign Against Tuberculosis - 1946), coordinated national policies such as chemotherapy, beginning with the discovery of streptomycin in 1944. The emergence of bacterial resistance led to the development of several therapeutic schemes. The Scheme 1 (rifampycin, hydrazide and pyrazinamid), which was the main one in 1979 and is still used nowadays, had a great epidemiological effect. The WHO declared TB a public health emergency in 1993. In response, Brazil developed some strategies; the first one was the Plano Emergencial para Controle da Tuberculose (Emergency Plan for Tuberculosis Control - 1994), prioritizing 230 municipalities. The current prospects are an effective municipalization of actions and their greater integration with the Programas de Agentes Comunitários e Saúde da Família (Humanitarian Agents and Family Health Programs).

  4. Decentralising the health sector: issues in Brazil.

    Science.gov (United States)

    Collins, C; Araujo, J; Barbosa, J

    2000-06-01

    The health sector in Brazil has undergone important changes, particularly with the development of the Unified Health System (SUS). Decentralisation is an important principle of SUS and advances have been made in transferring responsibilities and resources to the local government units, known as municipios. This article describes the changes introduced, focusing on the system of municipio classification and the funding mechanisms introduced through the basic operating rule (BOR) of 1996. The paper then moves on to analysing three key issues of decentralisation in Brazil that are related to the policy process, the system of decentralisation and the output of decentralisation. Firstly, the formal process by which decisions on health sector reform are made is discussed with particular attention being paid to the negotiated and relatively open policy space. Secondly, the role of the states is discussed within the decentralised system. Thirdly, the impact of decentralisation on equity is discussed with particular reference to the resourcing of the Municipal Health Funds. The article concludes by emphasising the political nature of health sector decentralisation and the need to develop the conditions for effectiveness in decentralisation programmes.

  5. Astrobiology in Brazil: early history and perspectives

    Science.gov (United States)

    Rodrigues, Fabio; Galante, Douglas; Paulino-Lima, Ivan G.; Duarte, Rubens T. D.; Friaça, Amancio C. S.; Lage, Claudia; Janot-Pacheco, Eduardo; Teixeira, Ramachrisna; Horvath, Jorge E.

    2012-10-01

    This review reports the Brazilian history in astrobiology, as well as the first delineation of a vision of the future development of the field in the country, exploring its abundant biodiversity, highly capable human resources and state-of-the-art facilities, reflecting the last few years of stable governmental investments in science, technology and education, all conditions providing good perspectives on continued and steadily growing funding for astrobiology-related research. Brazil is growing steadily and fast in terms of its worldwide economic power, an effect being reflected in different areas of the Brazilian society, including industry, technology, education, social care and scientific production. In the field of astrobiology, the country has had some important landmarks, more intensely after the First Brazilian Workshop on Astrobiology in 2006. The history of astrobiology in Brazil, however, is not so recent and had its first occurrence in 1958. Since then, researchers carried out many individual initiatives across the country in astrobiology-related fields, resulting in an ever growing and expressive scientific production. The number of publications, including articles and theses, has particularly increased in the last decade, but still counting with the effort of researchers working individually. That scenario started to change in 2009, when a formal group of Brazilian researchers working with astrobiology was organized, aiming at congregating the scientific community interested in the subject and to promote the necessary interactions to achieve a multidisciplinary work, receiving facilities and funding from the University de Sao Paulo and other funding agencies.

  6. Paragonimiasis: first case reported in Brazil

    Directory of Open Access Journals (Sweden)

    Antônio Carlos Moreira Lemos

    2007-02-01

    Full Text Available The authors present a case from a 59 years old white female Brazilian patient, based in Salvador-Bahia, Brazil's northeastern side area, who experienced irritative cough and progressive dyspnea, and, after 18 months, was admitted to a hospital with respiratory insufficiency. The physical exam showed diffuse rales in both hemithoraces. Initial leukogram showed 14,400 cells/mL with 14% of eosinophils and chest X-ray showed peribronchovascular infiltrate, predominating in the lower half of the lung fields, and small opaque nodules. The high-resolution computed tomography scan of the chest (HRCT presented compatible pattern with airways disease, especially from the small airways, with air trapping, tree sprouting images, central lobular nodules and bronchiectasis, making the results compatible with bronchiolitis and bronchiectasis. The transbroncho biopsy unveiled granulomatous lesion with necrosis, where was noticed a structure compatible to a parasitic case, and the research of the parasite eggs in the sputum was positive to paragonimus. After the praziquantel use, the patient presented a thick ferruginous expectoration and the result for BAAR examination was positive. The PCR exam and the sputum culture confirmed M. tuberculosis, and then the treatment for M. tuberculosis was initiated. The authors warn that this infection may have been a consequence of economics globalization process, where the importation of parasitized crustaceans might be the cause. However, there is the need of an accurate examination for the possibility of paragonimus specimens in this area of Brazil.

  7. Multidecadal Variability of the North Brazil Current

    Science.gov (United States)

    Zhang, D.; McPhaden, M.

    2009-04-01

    The North Brazil Current (NBC) flowing northward in the tropical south Atlantic is one of the strongest western boundary currents in the world ocean. It's unique location, straddling the tropical Atlantic where currents are predominately zonal, suggests that it is a major component of the Atlantic Meridional Overturning Circulation (AMOC). Fritz Schott was one of the first to suggest using the NBC as an index for AMOC transport, which is difficult to simulate accurately in models and data assimilation systems due to a lack of observational constraints. Here, we calculate an NBC transport time series based on five decades of historical ocean observations near the western boundary off the coast of Brazil between 6° and 11°S. Results reveal a large magnitude NBC variation on multidecadal time scales that is coherent with the Atlantic Multidecadal Oscillation in sea surface temperature, multidecadal swings in Sahel Drought and Atlantic hurricane activity, as well as the subtropical and subpolar upper ocean salinity anomalies. All of these multidecadal variations have been linked to the AMOC in a number of modelling studies, suggesting that our observed multidecadal NBC variability is an useful indicator of the AMOC. Concerning the possible slowdown of AMOC under global warming and the debate about whether a slowdown has already occurred, our NBC transport time series shows no significant trend over the last half century. The results provide important constraints on climate models used for climate change projections and decadal time scale climate predictions.

  8. Effect factors for terrestrial acidification in Brazil

    DEFF Research Database (Denmark)

    Crespo Mendes, Natalia; Laurent, Alexis; Hauschild, Michael Zwicky

    compatibility with existing LCIA methods the effect factors were developed using the framework adopted by LC-Impact and Impact World+ methods. Soil pH was used as an indicator of soil acidity to predict plant occurrences. From the number of plant species occuring at each 0.1 pH unit response relationships...... of species richness and soil pH were developed. The species richness in each ecoregion were transformed into an empirical potentially not occurring fraction, which is a zero-to-one measure used to represent the presence or absence of species. The set of data consists of 976345 records of plants occurrences...... in Brazil, represented by 33167 species, indicating that this is a comprehensive study. Maps of soil pH in Brazil were extracted at 1-km resolution and pH values were extracted for the depth range of 0-30cm. For each ecoregion, species richness was plotted against soil pH and the exposure-response curves...

  9. Climatology of destructive hailstorms in Brazil

    Science.gov (United States)

    Martins, Jorge A.; Brand, Veronika S.; Capucim, Mauricio N.; Felix, Rafael R.; Martins, Leila D.; Freitas, Edmilson D.; Gonçalves, Fabio L. T.; Hallak, Ricardo; Dias, Maria A. F. Silva; Cecil, Daniel J.

    2017-02-01

    Hail is considered to be among the most complex extreme weather phenomena of the atmosphere. Every year, notably in the southern Brazilian States, destructive hailstorms result in serious economic losses and cause a great social impact destroying crops, homes, medical facilities and schools. The aim of this study is to document the spatial, annual, and diurnal variation in destructive hailstorm frequency during a 22 year period from 1991 to 2012 in Brazil. The analysis is based on a collection of reports released by the Brazilian National Civil Protection Secretariat - SEDEC. Based on reports of emergency assistance given to the population affected by a disaster, the information discussed in this work is assumed as representative only of destructive hailstorms. The analysis reveals a large spatial variability, with the majority of hailstorm occurrences distributed in the three southernmost Brazilian States. Within those states, the number of hail reports was observed to increase with increasing population density in rural areas. Hailstorms were reported most often in the late afternoon and evening of the winter/spring transition, in agreement with a few other areas in the subtropics with available studies, but different from the majority of studies for temperate zones, which suggest spring/summer as the hail season. Although the results show some discrepancies compared to satellite hail signatures, the findings of this work confirm that southern Brazil is a region prone to the development of strong convective storms, with high annual numbers of destructive hail events.

  10. Fetal deaths in Brazil: a systematic review

    Science.gov (United States)

    Barbeiro, Fernanda Morena dos Santos; Fonseca, Sandra Costa; Tauffer, Mariana Girão; Ferreira, Mariana de Souza Santos; da Silva, Fagner Paulo; Ventura, Patrícia Mendonça; Quadros, Jesirée Iglesias

    2015-01-01

    OBJECTIVE To review the frequency of and factors associated with fetal death in the Brazilian scientific literature. METHODS A systematic review of Brazilian studies on fetal deaths published between 2003 and 2013 was conducted. In total, 27 studies were analyzed; of these, 4 studies addressed the quality of data, 12 were descriptive studies, and 11 studies evaluated the factors associated with fetal death. The databases searched were PubMed and Lilacs, and data extraction and synthesis were independently performed by two or more examiners. RESULTS The level of completeness of fetal death certificates was deficient, both in the completion of variables, particularly sociodemographic variables, and in defining the underlying causes of death. Fetal deaths have decreased in Brazil; however, inequalities persist. Analysis of the causes of death indicated maternal morbidities that could be prevented and treated. The main factors associated with fetal deaths were absent or inadequate prenatal care, low education level, maternal morbidity, and adverse reproductive history. CONCLUSIONS Prenatal care should prioritize women that are most vulnerable (considering their social environment or their reproductive history and morbidities) with the aim of decreasing the fetal mortality rate in Brazil. Adequate completion of death certificates and investment in the committees that investigate fetal and infant deaths are necessary. PMID:25902565

  11. Antifouling activity of twelve demosponges from Brazil

    Directory of Open Access Journals (Sweden)

    SM. Ribeiro

    Full Text Available Benthic marine organisms are constantly exposed to fouling, which is harmful to most host species. Thus, the production of secondary metabolites containing antifouling properties is an important ecological advantage for sessile organisms and may also provide leading compounds for the development of antifouling paints. High antifouling potential of sponges has been demonstrated in the Indian and Pacific oceans and in the Caribbean and Mediterranean seas. Brazilian sponges remain understudied concerning antifouling activities. Only two scientific articles reported this activity in sponges of Brazil. The objective of this study was to test crude extracts of twelve species of sponges from Brazil against the attachment of the mussel Perna perna through laboratorial assays, and highlight promising species for future studies. The species Petromica citrina, Amphimedon viridis, Desmapsamma anchorata, Chondrosia sp., Polymastia janeirensis, Tedania ignis, Aplysina fulva, Mycale angulosa, Hymeniacidon heliophila, Dysidea etheria, Tethya rubra, and Tethya maza were frozen and freeze-dried before extraction with acetone or dichloromethane. The crude extract of four species significantly inhibited the attachment of byssus: Tethya rubra (p = 0.0009, Tethya maza (p = 0.0039, Petromica citrina (p = 0.0277, and Hymeniacidon heliophila (p = 0.00003. These species, specially, should be the target of future studies to detail the substances involved in the ability antifouling well as to define its amplitude of action.

  12. Women's hidden transcripts about abortion in Brazil.

    Science.gov (United States)

    Nations, M K; Misago, C; Fonseca, W; Correia, L L; Campbell, O M

    1997-06-01

    Two folk medical conditions, "delayed" (atrasada) and "suspended" (suspendida) menstruation, are described as perceived by poor Brazilian women in Northeast Brazil. Culturally prescribed methods to "regulate" these conditions and provoke menstrual bleeding are also described, including ingesting herbal remedies, patent drugs, and modern pharmaceuticals. The ingestion of such self-administered remedies is facilitated by the cognitive ambiguity, euphemisms, folklore, etc., which surround conception and gestation. The authors argue that the ethnomedical conditions of "delayed" and "suspended" menstruation and subsequent menstrual regulation are part of the "hidden reproductive transcript" of poor and powerless Brazilian women. Through popular culture, they voice their collective dissent to the official, public opinion about the illegality and immorality of induced abortion and the chronic lack of family planning services in Northeast Brazil. While many health professionals consider women's explanations of menstrual regulation as a "cover-up" for self-induced abortions, such popular justifications may represent either an unconscious or artful manipulation of hegemonic, anti-abortion ideology expressed in prudent, unobtrusive and veiled ways. The development of safer abortion alternatives should consider women's hidden reproductive transcripts.

  13. The changing face of autism in Brazil.

    Science.gov (United States)

    Rios, Clarice; Costa Andrada, Barbara

    2015-06-01

    At the end of 2012, after intensive lobbying by parent activist associations, a federal law recognized autism as a "disability for all legal purposes" in Brazil. Defining autism as a disability was more than a change of legal status to guarantee social benefits. It was also a political maneuver, orchestrated by parent associations, aimed to take the responsibility for treatment away from the public mental health network of services. This article examines the controversies that have set parent associations in direct antagonism with mental health professionals in the public health system. We draw from ethnographic data and theoretical discussions in the field of disability studies to situate these controversies within the context of a larger debate on the relationship between health, rights, and citizenship. We found similarities between the ethical and political goals of parent activists and mental health professionals in Brazil, but we argue that the main cause of dissent is the role that each of these social actors assigns to identity politics in their clinical and political projects.

  14. Status of food irradiation in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Kikuchi, O.K. [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)

    1996-12-31

    Research on food irradiation in Brazil started in 1968 at the Center of Nuclear Energy for Agriculture (CENA), Piracicaba, Sao Paulo. At the Institute of Nuclear and Energy Research (IPEN-CNEN/SP), Sao Paulo, Sao Paulo, research on detection of irradiated foods is in progress. In 1973, the Brazilian government established a regulation about food irradiation. Nowadays, the products authorized to be irradiated are: rice, poultry, fish and fish products, potatoes, onions, avocados, persimmons, pineapples, wheat flour, maize, beans, spices, tomatoes, guavas, oranges, lemons, strawberries, mangoes, melons and papayas. The other recommended products to be approved in the future are: acerolas, apples, beans (dose > 1 kGy), beef, blueberries, cherries, cheeses, coffee, figs, fresh guaranas, garlics, grapefruits, grapes, mushrooms, nuts and pork. Today, there is only one commercial facility for irradiation services in the country, the Empresa Brasileira de Radiacoes Ltda. (EMBRARAD). This company operates a Nordion JS-7500 irradiator, with a present activity of about 1,000 kCi, designed for sterilizing medical devices. It also irradiates spices, dried foods, gemstones, cosmetics, wood and raw materials for pharmaceuticals. The plant operates 24 hours a day and the spices and dried foods represent 15% of the business. Powder of guarana seeds is irradiated also for exportation. There are two other commercial facilities for radiation sterilization in Brazil, operating exclusively for their own production. (J.P.N.)

  15. Phenology and global warming research in Brazil

    Science.gov (United States)

    Morellato, L. P. C.

    2009-04-01

    A recent review on South American phenology research has shown an increase in phenology papers over the last two decades, especially in this new 21st century. Nevertheless, there is a lack of long term data sets or monitoring systems, or of papers addressing plant phenology and global warming. The IPCC AR4 report from 2007 has offered indisputable evidence of regional to global-scale change in seasonality, but it is supported by plant and animal phenological data from North Hemisphere and temperate species. Information from tropical regions in general and South America in particular are sparse or lacking. Here I summarize the recent outcomes of our ongoing tropical phenology research in Brazil and its potential contribution to integrate fields and understand the effects of global warming within the tropics. The Phenology Laboratory (UNESP) is located at Rio Claro, São Paulo State, Southeastern Brazil. We are looking for trends and shifts on tropical vegetation phenology, and are exploring different methods for collecting and analyzing phenology data. The phenological studies are developed in collaboration with graduate and undergraduate students, post-docs and researchers from Brazil and around the world. We established three long term monitoring programs on Southeastern Brazil from 2000 onwards: trees from an urban garden, semideciduous forest trees, and savanna cerrado woody vegetation, all based on direct weekly to monthly observation of marked plants. We have collected some discontinuous data from Atlantic rain forest trees ranging from 5 to 8 years long. I collaborate with the longest tropical wet forest phenology monitoring system in Central Amazon, and with another long term monitoring system on semi deciduous forest from South Brazil. All research programs aim, in the long run, to monitor and detect shifts on tropical plant phenology related to climatic changes. Our first preliminary findings suggest that: (i) flowering and leafing are more affected by

  16. Listeriosis in the far South of Brazil: neglected infection?

    Directory of Open Access Journals (Sweden)

    Dulcinea Blum-Menezes

    2013-06-01

    Full Text Available Listeriosis is an under-diagnosed and under-reported infection; however, listeriosis is not a compulsorily notifiable disease in Brazil. We provide an overview of the rates of listeriosis in the United States of America (USA, Europe, Latin America, and Brazil during the past decade. We also report a case of miscarriage caused by listeriosis in which there was no suspicion of this infection. This overview and the case we report serve as reminders of the often-neglected threat of listeriosis and its potential to cause miscarriage while highlighting the necessity of recognizing listeriosis as a compulsorily notifiable disease in Brazil.

  17. Asian genotypes of dengue virus 4 in Brazil.

    Science.gov (United States)

    Pinho, A C O; Sardi, S I; Paula, F L; Peixoto, I B; Brandão, C J; Fernandez, F M C; Campos, G S

    2015-10-01

    Dengue virus, commonly transmitted by mosquitoes, causes a human disease of significant social impact and presents a serious public health problem in Brazil. This report describes the unusual emergence of DENV-4 in northern Brazil after a nearly 30-year-long absence. DENV-4 genotype I is of Asian origin and was identified in the serum of patients receiving treatment at a hospital serving the Salvador area (Brazilian state of Bahia). The identification of dengue virus serotypes through molecular and phylogenetic analysis is essential for predicting disease severity or fatal illness, principally in endemic countries such as Brazil.

  18. The drought of the century in the Amazon Basin: an analysis of the regional variation of rainfall in South America in 1926 A seca do século na Bacia Amazônica: uma análise da variação regional de chuva na América do Sul em 1926

    Directory of Open Access Journals (Sweden)

    Earle Williams

    2005-06-01

    Full Text Available The most severe drought in tropical South America during the 20th century occurred in 1926. This extreme El Nino year is further documented anecdotally, in an update of the river stage observations at Manaus, and in annual rainfall records. The annual rainfall anomaly is an east-west dipole over tropical South America, with drought to the west over the Amazon basin whose discharge is documented at Manaus, and with a surplus to the east and including the Nordeste region of Brazil. Speculations about a role for aerosol in aggravating the drought are discussed.A mais severa seca nos trópicos da América do Sul durante o século 20 ocorreu em 1926. Este ano extremo de El Niño é documentado nos níveis de observações do rio (Negro em Manaus, nos registros anuais de precipitação e anedoticamente. A anomalia anual de precipitação é um dipolo leste-oeste sobre os trópicos da América do Sul, com seca a oeste sobre a bacia Amazônica cuja a descarga é documentada em Manaus, e um residuo para o leste incluindo a região nordeste do Brasil. Especulações sobre a função dos aerosóis na agravação da seca são discutidos.

  19. 77 FR 13560 - U.S. Education Mission to Brazil; Brasilia, Rio de Janeiro and São Paulo, Brazil, August 30...

    Science.gov (United States)

    2012-03-07

    ..., engineering and mathematics. Students then return to Brazil to complete their degrees. \\1\\ Bureau of Western... Information U.S. Commercial Service in Brazil Patricia S. Marega, Business Development Specialist, S o...

  20. Democratization and Transitional Justice in Brazil

    Directory of Open Access Journals (Sweden)

    Maria Paula NASCIMENTO ARAUJO

    2016-05-01

    Full Text Available Brazil experienced a long process of political transition featured by an intense game of political and social forces, in which different actors with different democratization projects clashed. Despite the leadership of the transition process have been in the hands of conservative elites linked to the military dictatorship, broad sectors of the oposition and of the lefts, as well as representants of social movements, disputed the transitional space and expanded the initial design of the regime. This long transition —marked by negotiations, frustrations and resilience— reflected on the transitional justice model adopted by the country. Almost 30 years after the end of military dictatorship, the Truth Commission established by President Dilma Rousseff in 2012, drew attention to issues related to memory, justice and reparation and showed that the democratization process, in some respects, is still incloncluded. This article aims to restore this historical process highlighting some of its characteristics and specificities.

  1. Sustainable Future for Biodiesel in Brazil

    DEFF Research Database (Denmark)

    Dias, Maria Amélia de Paula

    This thesis aims to study alternatives to biodiesel industry in Brazil, for 2030, taking in account the sustainability dimensions, namely economic, environmental, ecological, social, national and international politics, territorial, cultural, and technological, through the development of scenarios...... for agriculture and pasture. Thus, a simulation, using linear programming models, was made in order to verify the alternatives of feedstock to produce biodiesel. It was observed that it is possible to decentralize the market, reduce land use, and regionalize production, making better use of the availability...... to identify the driving forces to develop the scenario storylines. This proposition was tested in an in-depth interview with the biodiesel market stakeholders. Based on the findings of the two approaches, the simulations and the interviews, it was possible to obtain future alternatives, where the biodiesel...

  2. ITMF’s Annual Conference in Brazil

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    This year, the ITMF Annual Conference will take place in So Paulo/Brazil from October 17 – 19, 2010. China has a strong presence of important delegation organized by China National Textile and Apparel Council (CNTAC) which successfully presented ITMF’s first annual gathering in this new member country last year. As agreed by Dr. Christian Schindler, Director General of ITMF, China Textile magazine reproduces some of the articles sent to our editor who has combined and compressed the following interviews into one report for page reason in this issue. For the full text of all the relevant articles is available with Dr. Schindler, please visit ITMF’s official website for more information about this annual conference.

  3. Current status of biodiesel development in Brazil.

    Science.gov (United States)

    Ramos, Luiz Pereira; Wilhelm, Helena Maria

    2005-01-01

    In recent years, the concept of producing biodiesel from renewable lipid sources has regained international attention. In Brazil, a national program was launched in 2002 to evaluate the technical, economic, and environmental competitiveness of biodiesel in relation to the commercially available diesel oil. Several research projects were initiated nationwide to investigate and/or optimize biodiesel production from renewable lipid sources and ethanol derived from sugarcane (ethyl esters). Once implemented, this program will not only decrease our dependence on petroleum derivatives but also create new market opportunities for agribusiness, opening new jobs in the countryside, improving the sustainability of our energy matrix, and helping the Brazilian government to support important actions against poverty. This article discusses the efforts to develop the Brazilian biodiesel program in the context of technical specifications as well as potential oilseed sources.

  4. Telemedicine: challenges to dissemination in Brazil

    Directory of Open Access Journals (Sweden)

    Jose Manuel Santos de Varge Maldonado

    Full Text Available Abstract: Telemedicine has been seen as an important tool for facing the challenges of universal health systems. The goal of this article is to discuss the main challenges to its full dissemination in Brazil. Being a somewhat new area, there are not many scientific papers that systematize it. This article is an exploratory paper, as it aims to provide an overall perspective on the subject. From an economic point of view, telemedicine is a strategic area due to its an intrinsic potential of being a source for generating innovation, for requiring and incorporating technological breakthroughs from other areas, and for its interdisciplinary nature and dynamic inter-relations that drive different industries. From the social perspective, it has the potential to make access to health services democratic, by connecting remote regions with health services located in hospitals and centers of reference for prevention, diagnosis and treatment.

  5. Dietary sources of fiber intake in Brazil.

    Science.gov (United States)

    Sardinha, Aline Nascimento; Canella, Daniela Silva; Martins, Ana Paula Bortoletto; Claro, Rafael Moreira; Levy, Renata Bertazzi

    2014-08-01

    The objective of this study was to estimate the household availability of fibers in Brazil and to identify the dietary sources of this nutrient. Data from the 2008-2009 Household Budget Survey were used to estimate national household availability and density of fibers and also according to stratifications defined by income level, five regions and area (rural or urban). The contribution of the different food groups, classified by the nature, extent and purpose of processing, to total fibers available in Brazilian households was also determined. The mean density of per capita fibers was 7.6 g/1000 kcal. Higher availability and density of fibers was observed in households situated in rural areas and among low-income families. The main dietary sources of fiber were beans, bread, rice, fruit, vegetables and manioc flour. Fiber intake was found to be insufficient. Therefore, actions promoting a healthy diet are needed to improve the dietary quality of the Brazilian population.

  6. Sciences and races in Brazil ca. 1900

    Directory of Open Access Journals (Sweden)

    Sánchez Arteaga, Juan Manuel

    2009-12-01

    Full Text Available This paper attempts to provide a general overview about the way in which Brazilian medicine and physical anthropology gave a naturalistic approach to the idea of race and to the «problem» posed by the mixture of races in the country during the second half of the 19th century and the beginning of the 20th century, coinciding with the introduction of evolutionism in Brazil.

    El presente artículo trata de mostrar una visión panorámica sobre el modo en que la medicina y la antropología física brasileñas trataron la cuestión de las «razas» y el mestizaje durante la segunda mitad del siglo XIX y principios del siglo XX, a la vez que los principios evolucionistas pasaban a ser aceptados por la ciencia nacional.

  7. The Elusive New Middle Class in Brazil

    Directory of Open Access Journals (Sweden)

    Celia Lessa Kerstenetzky

    2015-12-01

    Full Text Available Against the background of the generalized reduction of poverty in the world, and particularly in Brazil, this article intends to gauge the socio-economic profile of Brazilian households that emerged from poverty and have been identified as integrating a "new middle class". Using indicators of standards of living from the 2008-2009 Survey on Family Budgets (POF/IBGE, we found out that, in contrast to what has been assumed on the basis of average income criteria, this social stratum is markedly heterogeneous, most of it being similar in their consumption patterns to the economically vulnerable or outright poor strata. So, we conclude that, from a sociological perspective that demands additional conditions besides income levels to identify social classes, it is a category mistake to call this social stratum a new middle class. We conjecture that this may be consequential in terms of policy priorities and choices.

  8. Radioactive characterization of phosphogypsum from Imbituba, Brazil.

    Science.gov (United States)

    Borges, Renata Coura; Ribeiro, Fernando Carlos Araujo; Lauria, Dejanira da Costa; Bernedo, Alfredo Victor Bellido

    2013-12-01

    This research aims to characterize the content of natural occurring radionuclides in phosphogypsum stacks at Imbituba, Santa Catarina state, Brazil. (226)Ra, (228)Ra, (40)K, (238)U and (232)Th were determined in PG, soils and sediment samples by gamma spectrometry using the hyper pure germanium detector and neutron activation. The migration of radionuclides in the phosphogypsum profile did not show the same behavior for all sampling sites. The mean activity concentration of (226)Ra was 95 Bq kg(-1), which is far below the limit recommended by the U.S. Environmental Agency (USEPA) for its application in agriculture (370 Bq kg(-1)) and the Brazilian Commission of Nuclear Energy Resolution 113 that established a reference level of 1000 Bq kg(-1) of (226)Ra or (228)Ra for the use of PG in agriculture as well as building materials.

  9. Challenges on preparing unitization agreements in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Ribeiro, Marilda Rosado de Sa [Universidade do Estado do Rio de Janeiro (UERJ), RJ (Brazil). Faculdade de Direito; Appi, Valeria Tiriba [PETROBRAS, Rio de Janeiro, RJ (Brazil)

    2004-07-01

    As a further stage of the new oil and gas industry in Brazil, various challenges are now faced as an outcome from the O and G projects progress, under the legal framework in force in Brazil. Among all are the first unitization processes, which require a set of steps to be performed in order to achieve a unitization agreement. The paper aims at analyzing the legal, technical and drafting issues to be dealt with in such agreements. After a brief introduction to the general issues at stake in the unitization agreements the study shall encompass a follow up of the sequence of events to be complied with. One could mention the settlement of the criteria onto calculations to serve as guidelines for the negotiations will be based on. That, is usually based on concepts as oil in place, possible O and G in the reservoir, or reserve, which must be agreed by all involved parties. Another possible step to be considered is the creation of a common database, in order to permit fast decisions and optimise E and P operations in the unitized area. Other concerns should be addressed, depending on the amount of O and G to be produced from the unitized area, as: the avoidance of multiple redeterminations aiming to decrease unnecessary expenditures, which could jeopardize the arising project profitability; and the recalculations of Government take, royalties and other incumbencies, to be shared by all involved parties. The paper shall also mention the experience of other countries trying to adopt, where applicable and compatible with the best practices of the oil industry, solutions adopted where tradition in oil and gas is more mature. It should be considered that, in each bidding round the Brazilian Concession Agreement has undergone changes, therefore during an unitization process with two different versions of the Concession Agreement differences between corresponding clauses will have to be faced. Comments should also be made about satellite agreements, encompassing O and G buying

  10. Transferring ART research into education in Brazil

    Directory of Open Access Journals (Sweden)

    Maria Fidela de Lima Navarro

    2009-01-01

    Full Text Available The aim of this study was to evaluate the teaching of the Atraumatic Restorative Treatment (ART approach in Brazilian dental schools. MATERIALS AND METHODS: A questionnaire on this subject was sent to Pediatric Dentistry, Operative Dentistry and Public Health Dentistry professors. The questions approached the followig subjects: the method used to teach ART, the time spent on its teaching, under which discipline it is taught, for how many years ART has been taught and its effect on the DMFT index. RESULTS: A total of 70 out of 202 dental schools returned the questionnaire. The ART approach is taught in the majority of the Brazilian dental schools (96.3%, and in most of these schools it is taught both in theory and in clinical practice (62.9%. The majority (35.3% of professors teach ART for 8 hours, and most often as part of the Pediatric Dentistry discipline (67.6%. It has been taught for the last 7 to 10 years in 34.3% of dental schools. Most professors did not observe a change in the DMFT index with this approach. There is a diversity in the teaching of ART in Brazil in terms of the number of hours spent, the teaching method (theory and practice, and the disciplines involved in its teaching. CONCLUSIONS: It is necessary to address the training of professors in the ART approach for the whole country. An educational model is proposed whereby a standard ART module features as part of other preventive and restorative caries care educational modules. This will facilitate and standardize the introduction and adoption of the ART approach in undergraduate education in Brazil.

  11. Vaccine protection against Zika virus from Brazil.

    Science.gov (United States)

    Larocca, Rafael A; Abbink, Peter; Peron, Jean Pierre S; Zanotto, Paolo M de A; Iampietro, M Justin; Badamchi-Zadeh, Alexander; Boyd, Michael; Ng'ang'a, David; Kirilova, Marinela; Nityanandam, Ramya; Mercado, Noe B; Li, Zhenfeng; Moseley, Edward T; Bricault, Christine A; Borducchi, Erica N; Giglio, Patricia B; Jetton, David; Neubauer, George; Nkolola, Joseph P; Maxfield, Lori F; De La Barrera, Rafael A; Jarman, Richard G; Eckels, Kenneth H; Michael, Nelson L; Thomas, Stephen J; Barouch, Dan H

    2016-08-25

    Zika virus (ZIKV) is a flavivirus that is responsible for the current epidemic in Brazil and the Americas. ZIKV has been causally associated with fetal microcephaly, intrauterine growth restriction, and other birth defects in both humans and mice. The rapid development of a safe and effective ZIKV vaccine is a global health priority, but very little is currently known about ZIKV immunology and mechanisms of immune protection. Here we show that a single immunization with a plasmid DNA vaccine or a purified inactivated virus vaccine provides complete protection in susceptible mice against challenge with a strain of ZIKV involved in the outbreak in northeast Brazil. This ZIKV strain has recently been shown to cross the placenta and to induce fetal microcephaly and other congenital malformations in mice. We produced DNA vaccines expressing ZIKV pre-membrane and envelope (prM-Env), as well as a series of deletion mutants. The prM-Env DNA vaccine, but not the deletion mutants, afforded complete protection against ZIKV, as measured by absence of detectable viraemia following challenge, and protective efficacy correlated with Env-specific antibody titers. Adoptive transfer of purified IgG from vaccinated mice conferred passive protection, and depletion of CD4 and CD8 T lymphocytes in vaccinated mice did not abrogate this protection. These data demonstrate that protection against ZIKV challenge can be achieved by single-shot subunit and inactivated virus vaccines in mice and that Env-specific antibody titers represent key immunologic correlates of protection. Our findings suggest that the development of a ZIKV vaccine for humans is likely to be achievable.

  12. Tetrastichus giffardianus on pupae of Anastrepha in Brazil

    Directory of Open Access Journals (Sweden)

    Almerinda Amélia Rodrigues Araújo

    2016-07-01

    Full Text Available ABSTRACT: Tetrastichus giffardianus Silvestri (Hymenoptera: Eulophidae is recorded for the first time parasitizing Anastrepha obliqua (Macquart (Diptera: Tephritidae in fruits of umbu-cajazeira Spondias sp. (Anacardiaceae in Brazil.

  13. Tetrastichus giffardianus on pupae of Anastrepha in Brazil

    OpenAIRE

    Almerinda Amélia Rodrigues Araújo; Paulo Roberto Ramalho Silva; Ranyse Barbosa Querino Silva; Elizangela Pereira da Silva Sousa

    2016-01-01

    ABSTRACT: Tetrastichus giffardianus Silvestri (Hymenoptera: Eulophidae) is recorded for the first time parasitizing Anastrepha obliqua (Macquart) (Diptera: Tephritidae ) in fruits of umbu-cajazeira Spondias sp. (Anacardiaceae) in Brazil.

  14. Vocational Education and the Training of Industrial Labour in Brazil.

    Science.gov (United States)

    Moura Castro, Claudio de

    1979-01-01

    Focusing on issues related to the training of industrial workers in Brazil, this article reports the findings of a study which evaluated the effectiveness of vocational training offered by the National Industrial Apprenticeship Service. (LRA)

  15. Danish Literature in Brazil: Notes on Translation and Criticism

    Directory of Open Access Journals (Sweden)

    Vitor Amaral

    2012-09-01

    Full Text Available This article aims to present and analyse some examples of translation and criticism of Danish literature in Brazil. It will demonstrate that the dialogue between Denmark and Brazil in the literary field has more eventful a history than one can imagine at first. Translation and criticism are regarded as two complementary ways to disseminate a literature in foreign places. To the reader who knows little or nothing about the reception of Danish literature in Brazil, this article can provide the initial elements for a further research. There is not any attempt towards comprehensiveness, and this article remains a discrete look of its author’s over the reception of Danish literature in Brazil.

  16. Helminths parasitizing Columbina picui (Columbiformes: Columbidae) in Brazil.

    Science.gov (United States)

    Coimbra, Marco A A; Mascarenhas, Carolina S; Krüger, Cristiane; Muller, Gertrud

    2009-08-01

    Columbina picui (picui ground-dove) is a small, diurnal columbid bird that lives, in couples or flocks, in open areas in the countryside and urban centers. The species occurs in Brazil and other countries in South America. The aim of this study was to identify the helminths that parasitize C. picui in the state of Rio Grande do Sul, southern Brazil. Thirty-four specimens were necropsied; in each case, the organs were isolated and examined separately. The nematodes and their prevalences were: Ascaridia columbae (26.5%) and Ornithostrongylus iheringi (11.8%) in the small intestine; Dispharynx nasuta in the proventriculus (5.9%) and gizzard (2.9%); and a Dispharynx sp. (2.9%) in the proventriculus. This is the first report of D. nasuta parasitizing C. picui in Brazil and the first record of A. columbae and O. iheringi infecting C. picui in the state of Rio Grande do Sul, Brazil.

  17. Distribution patterns of riodinid butterflies (Lepidoptera: Riodinidae) from southern Brazil

    OpenAIRE

    Siewert, Ricardo Russo; Iserhard,Cristiano Agra; Romanowski, Helena Piccoli; Callaghan,Curtis J.; Moser, Alfred

    2014-01-01

    Background: The aim of this study was to synthesize the knowledge of Riodinidae butterflies (Lepidoptera: Papilionoidea) in Rio Grande do Sul state (RS), southern Brazil, evaluating the role of climatic, topographic, and vegetational variables on the observed patterns of occurrence and distribution of these butterflies in the Pampa and Atlantic Forest biomes. The records of riodinid butterflies in RS were collected from published studies and the examination of museum collections in Brazil. Re...

  18. Competitiveness of Brazil in the wood international market

    Directory of Open Access Journals (Sweden)

    Naisy Silva Soares

    2012-03-01

    Full Text Available This study aimed to analyze the competitiveness of Brazilian lumber on the international market in the period 2000 to 2007. The methodological tools used to compare the competitiveness of Brazil with its main competitors were the rates of Relative Position Marketing (PRM and Revealed Comparative Advantage (VCR. The results point out to the fact that, although Brazil has proved competitive, it is necessary to use marketing strategies aimed at increasing the country’s competitiveness in this sector.

  19. Euplectrus furnius parasitizing Spodoptera frugiperda in maize in Brazil

    Directory of Open Access Journals (Sweden)

    Vinícius Soares Sturza

    2013-11-01

    Full Text Available Brazil is among the world's biggest maize producers and fall armyworm, Spodoptera frugiperda (Smith (Lepidoptera: Noctuidae, is the main insect pest on this crop in the country. Despite the importance of its natural enemies, there still is a lack of information about parasitoids species that attack this insect-pest, such as larval parasitoids. This research reports Euplectrus furnius Walker (Hymenoptera: Eulophidae parasitizing S. fugiperda larvae on maize crop in Brazil.

  20. Zika virus infections imported from Brazil to Portugal, 2015

    Directory of Open Access Journals (Sweden)

    L. Zé-Zé

    2016-01-01

    Here, we present the clinical and laboratory aspects related to the first four imported human cases of Zika virus in Portugal from Brazil, and alert, regarding the high level of traveling between Portugal and Brazil, and the ongoing expansion of this virus in the Americas, for the threat for Zika virus introduction in Europe and the possible introduction to Madeira Island where Aedes aegypti is present.

  1. Taxonomy of Epyris (Hymenoptera, Bethylidae from Paraná, Brazil

    Directory of Open Access Journals (Sweden)

    Lucyane Moreira dos Santos

    2003-06-01

    Full Text Available Epyris rotundus sp. nov. and Epyris cochlear sp. nov., from southern Brazil, are described and illustrated. Epyris longus Corrêa & Azevedo, 2002, E. argentinicus Evans, 1969, E. angustatus Evans, 1969, E. perpolitus Evans, 1969, E. parallelus Evans, 1969, E. distinctus Corrêa & Azevedo, 2002, E. variatus Corrêa & Azevedo, 2002, E. jugatus Evans, 1969, E. intermedius Evans, 1969 and E. depressigaster Evans, 1966 are recorded for the first time to Paraná, Brazil.

  2. Plasmodium vivax Landscape in Brazil: Scenario and Challenges

    OpenAIRE

    Siqueira, Andre M.; Mesones-Lapouble, Oscar; Marchesini, Paola; Sampaio, Vanderson Souza; Brasil, Patricia; Tauil, Pedro L; Fontes, Cor Jesus; COSTA, Fabio T. M.; Daniel-Ribeiro, Cláudio Tadeu; Lacerda, Marcus V. G.; Damasceno, Camila P.; Santelli, Ana Carolina S.

    2016-01-01

    Brazil is the largest country of Latin America, with a considerable portion of its territoritory within the malaria-endemic Amazon region in the North. Furthermore, a considerable portion of its territory is located within the Amazon region in the north. As a result, Brazil has reported half of the total malaria cases in the Americas in the last four decades. Recent progress in malaria control has been accompanied by an increasing proportion of Plasmodium vivax, underscoring a need for a bett...

  3. Capillaria hepatica in Puma concolor: first report in Brazil.

    Science.gov (United States)

    Quadros, Rosiléia M; Pilati, Célso; Marques, Sandra M T; Mazzolli, Marcelo; Benedet, Rodrigo C

    2009-09-01

    Capillaria hepatica was detected by histopathologic diagnosis in two cougars that were shot in April 2008 in Painel, Santa Catarina, Brazil. Macroscopic analysis of their livers revealed the presence of diffuse granulomas, and the histopathologic analysis indicated the presence of C. hepatica eggs, surrounded by mononuclear inflammatory cell infiltrate, small foci of necrosis, and mild-to-moderate fibrosis. This is the first report of C. hepatica in cougars (Puma concolor) in Brazil.

  4. The sharing economy in Brazil: the case of gastronomy

    OpenAIRE

    Štěrbová, Denisa

    2015-01-01

    After years of boom, Brazil will experience a recession this year. There was a significant imbalance in recent years from a budgetary point of view, inflation and foreign exchange. Protectionist Brazilian policy don't support foreign trade. Therefore consumers in the current recessive market environment are more willing to work with so-called collaborative consumption, even though Brazil is a country with one of the highest crime rate and the level of trust of consumers is lower than in other...

  5. ABORTION IN BRAZIL: IMPACTS OF ILLEGALITY IN PUBLIC HEALTH

    OpenAIRE

    2013-01-01

    Abortion in Brazil provides public health impacts, mainly due to the high rate of maternal morbidity and mortality, because it most often occurs in an illegal practice and / or unsafe, because of the illegality of abortion in certain situations in the country. Therefore, it is an issue that refers to the various reflections, such as legal, moral, cultural, socio-economic and bioethical. Given the above, the study aims to address about abortion in Brazil and the impacts of illegality in pu...

  6. Abundância e infecção do molusco Biomphalaria glabrata pelo Schistosoma mansoni no Estado do Rio de Janeiro, Brasil Abundance and Schistosoma mansoni infection of the snail Biomphalaria glabrata, Brazil

    Directory of Open Access Journals (Sweden)

    Alexandre Giovanelli

    2001-12-01

    Full Text Available OBJETIVOS: Investigar a distribuição espacial, a abundância e os índices de infecção natural de Biomphalaria glabrata, hospedeiro intermediário do Schistosoma mansoni, em localidade do Estado do Rio de Janeiro, RJ, Brasil. MÉTODOS: Na localidade de Pamparrão, município de Sumidouro, RJ, as coletas de moluscos foram realizadas bimestralmente no período de junho de 1991 a novembro de 1995. Foram estabelecidos 23 pontos de coleta ao longo do córrego Pamparrão e três de seus afluentes. Os moluscos capturados foram levados ao laboratório para diagnóstico da infecção. Para a análise dos dados, foram usados o coeficiente de Spearman (nível de 0,5% de significância e o teste de qui-quadrado. RESULTADOS: A abundância populacional de B. glabrata foi bastante variável ao longo do tempo e entre os ambientes amostrados. A maioria dos pontos de coleta apresentou correlação negativa com a pluviosidade. O afluente B destacou-se dos demais corpos d'água por apresentar taxas de infecção de B. glabrata elevadas (acima dos 25% em alguns pontos de coleta e persistentes. Foram encontrados mais moluscos infectados na estação seca do que na chuvosa (chi²=20,08; p=0,001. CONCLUSÕES: A população de moluscos foi influenciada negativamente pelo regime de chuvas, principalmente no córrego Pamparrão. A época de estiagem também parece ter favorecido a ocorrência de infecção, provavelmente devido ao menor volume de água dos córregos, o que aumentaria as chances de encontro do parasita com seu hospedeiro intermediário.OBJECTIVES: To investigate the spatial distribution, abundance and natural schistosomiasis infection levels in the snail Biomphalaria glabrata, the intermediate host of Schistosoma mansoni in an area of the State of Rio de Janeiro, Brazil. METHODS: In the Pamparrão area, Sumidouro county, RJ, Brazil, snail captures were carried out every other month from June 1991 to November 1995. There were 23 collecting sites along

  7. A new Magnetic Observatory in Pantanal - Brazil

    Science.gov (United States)

    Siqueira, F.; Pinheiro, K.; Linthe, H.

    2013-05-01

    The aim of a Magnetic Observatory is to register the variations of the Earth's magnetic field in a long temporal scale. Using this data it is possible to study field variations of both external and internal origins. The external variations concern interactions between the magnetosphere and the solar wind, in general are measured in a short time scale. The internal field generated by convection of a high electrical conductivity fluid in the external core by a mechanism known as the geodynamo. Usually the internal field time variations are longer than in the external field and are called secular variations. Measurements carried out over the last century suggest that field intensity is decreasing rapidly. The decreasing of the field's intensity is not the same around the globe, especially at the SAMA (South Atlantic Magnetic Anomaly) regions, where this reduction is occurring faster. The global distribution of magnetic observatories is uneven, with few observatories in South America. In Brazil, there are three magnetic observatories, but only Vassouras Observatory (VSS- RJ) is part of the INTERMAGNET network. The National Observatory has plans to install seven new observatories in Brazil. Pantanal was the chosen location for installing the first observatory because of its privileged location, close to the SAMA region, and its data can contribute to more information about its origin. We followed the procedures suggested by the IAGA to build this observatory. The first step is to perform a magnetic survey in order to avoid strong magnetic gradients in the location where the absolute and variometers houses will be installed. The next step, the construction of the observatory, includes the selection of special non-magnetic material for the variometer and absolute houses. All materials used were previously tested using a proton magnetometer GSM-19. After construction of the whole infrastructure, the equipment was installed. This Project is a cooperation between Brazilian

  8. Brachiaria spp. poisoning of ruminants in Brazil

    Directory of Open Access Journals (Sweden)

    B. Riet-Correa

    2011-03-01

    Full Text Available Brachiaria species are the most important grasses for cattle production in Brazil. However, a limiting factor for the use of Brachiaria spp. is their toxicity. Most outbreaks of hepatogenous photosensitization are caused by B. decumbens; however B. brizantha, B. humidicola and B. ruziziensis can also cause poisoning. The poisoning affects cattle, sheep, goats and buffalo. Sheep are more susceptible than other animal species and the young are more susceptible than adults. There are differences in susceptibility among animals of the same species and it has been suggested that this resistance is genetic. Also has been suggested that buffalo and probably some sheep are resilient, i.e. when poisoned these animals have histologic lesions and high GGT serum concentrations, but do not show clinical signs. In general, saponin concentrations are higher in growing plants, but outbreaks occur all over the year, probably due to unexplained rise in saponin concentration in the plant. A clinical syndrome of progressive weight loss and death, without photosensitization, has been reported in cattle poisoned by B. decumbens. Main preventive measures are based on the selection of resistant or resilient animals and on the development of Brachiaria species or varieties with low saponin concentration.

  9. Heavy rainfall equations for Santa Catarina, Brazil

    Directory of Open Access Journals (Sweden)

    Álvaro José Back

    2011-12-01

    Full Text Available Knowledge of intensity-duration-frequency (IDF relationships of rainfall events is extremely important to determine the dimensions of surface drainage structures and soil erosion control. The purpose of this study was to obtain IDF equations of 13 rain gauge stations in the state of Santa Catarina in Brazil: Chapecó, Urussanga, Campos Novos, Florianópolis, Lages, Caçador, Itajaí, Itá, Ponte Serrada, Porto União, Videira, Laguna and São Joaquim. The daily rainfall data charts of each station were digitized and then the annual maximum rainfall series were determined for durations ranging from 5 to 1440 min. Based on these, with the Gumbel-Chow distribution, the maximum rainfall was estimated for durations ranging from 5 min to 24 h, considering return periods of 2, 5, 10, 20, 25, 50, and 100 years,. Data agreement with the Gumbel-Chow model was verified by the Kolmogorov-Smirnov test, at 5 % significance level. For each rain gauge station, two IDF equations of rainfall events were adjusted, one for durations from 5 to 120 min and the other from 120 to 1440 min. The results show a high variability in maximum intensity of rainfall events among the studied stations. Highest values of coefficients of variation in the annual maximum series of rainfall were observed for durations of over 600 min at the stations of the coastal region of Santa Catarina.

  10. Milk production characteristics in Southern Brazil

    Directory of Open Access Journals (Sweden)

    Tony Picoli

    2015-07-01

    Full Text Available This paper aimed to describe milk production in Southern Rio Grande do Sul state, Brazil, and to identify factors that affect milk quality at this region. The average age of regional dairy farmers is 49, and 67.9% has not concluded elementary school. Dairy farming is carried out on properties with an average of 26.06 hectares and 8.4 lactating cows. Most of them (32.83% yield 50 to 100 L/day. Among the properties, 13.21% yield up to 30 L/day, and only 1.89% produces over 500 milk liters a day. Average yield was 6.8 L/day. Regarding to milking procedure, 39.3% farmers milk manually the animals, only 14.2% performed pre-milking teat disinfection, and 53.9% uses a single cloth to dry all animal teats. For infrastructure, 52.8% milks animals in wooden cowsheds. We observed that the average somatic cell count (SCC was within legal parameters, presenting negative correlation with milk production (r = -0.23 and lactose content (r = -0.39. However, the total bacterial count (TBC was above legal parameters. Education level seems to interfere in management and milk quality, because the less educated groups are, the less adequate are infrastructure, management, and product quality. Data show that there is a lower quality milk production where poor management techniques are adopted and owner education level affects milk quality.

  11. Equatorial electrojet in east Brazil longitudes

    Indian Academy of Sciences (India)

    R G Rastogi; H Chandra; K Yumuto

    2010-08-01

    This paper describes the morphology of the equatorial electrojet (EEJ) along 45°W longitude in east Brazil, where the ground magnetic (dip) equator is associated with the largest declination in the world. Daily range of the horizontal field ( ), as expected, was largest at the station in the chain closest to the dip equator, Sao Luiz (inclination −0.25°S). was largest positive at Eusebio (inclination 9.34°S) and largest negative at Belem (inclination 7.06°N); both near the fringe of EEJ belt. at Sao Luiz during the daytime was unexpectedly large negative in-spite of a small dip and also located south of the dip equator where should be positive. Center of EEJ was found to be shifted southward of the dip equator by about 1° in latitude. During southern summer, started decreasing from 00 h and reached a minimum value in the afternoon, an abnormal feature not discussed for any station so far. The mid-day value of the direction of vector was 22°-24°W compared to the declination of 19°–21°W in the region.

  12. Biosorption of uranium by Azolla, SP, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Vieira, Ludmila C.; Alves, Eliakim G.; Marumo, Julio T., E-mail: lcvieira@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Ferreira, Rafael V. de P., E-mail: rafael@itatijuca.com [Itatijuca Biotech, Sao Paulo, SP (Brazil); Canevesi, Rafael L.S.; Silva, Edson A., E-mail: edson.silva2@unioeste.br [Universidade Estadual do Oeste Parana (UNIOESTE), Toledo, PR (Brazil)

    2015-07-01

    Radioactive liquid waste needs special attention and requires suitable treatment before deposition. Among the potential technologies under development for the treatment of liquid radioactive wastes the biosorption has been highlighted by being an efficient and low cost technique. Biosorption process involves the exchange of ions contained in the biomass matrix by others present in solution. There are many biomasses that could be applied in treatment of radioactive wastes, for example, agricultural residues and macrophyte. The aim of this study is evaluate the ability of the Azolla sp., a floating aquatic plant, to absorb uranium in solution. Azolla sp. is a macrophyte that has been used to treat effluents containing heavy metals. The biosorption capacity of uranium by Azolla sp. was experimentally determined and modeled by isotherms. Experiments were performed to determine metal uptake, and then the solutions were analyzed by inductively coupled plasma optical emission spectrometry (ICP-OES). The isotherms applied to model the data was Langmuir, Freundlich, Sips Toth, Redlich Peternson, Two-Site-Langmuir, Radke Prausnitz to develop a technique for the treatment of radioactive liquid waste generated at the Nuclear and Energy Research Institute (IPEN-CNEN/SP), Brazil. (author)

  13. Fossilized excreta associated to dinosaurs in Brazil

    Science.gov (United States)

    Souto, P. R. F.; Fernandes, M. A.

    2015-01-01

    This work provides an updated register of the main occurrences of fossilized excreta (coprolites and urolites) associated with dinosaurs found in the Brazil. The goal is to provide a relevant guide to the interpretation of the environment in the context of Gondwana. In four geographic areas, the excreta are recovered from Cretaceous sedimentary deposits in outcrops of the Bauru and São Luis basins and the Upper Jurassic aeolian deposits of the Parana Basin in the state of São Paulo. The coprolites were analyzed by X-ray diffraction and X-ray fluorescence methods. The results of these analyses reveal compositions that differ from the surrounding matrix, indicating a partial substitution of the organic material due to the feeding habits of the producers. Additionally, we describe the urolite excavations in epirelief and hyporelief, the result of gravitational flow the impact from urine jets on sand. These are associated with ornithopod and theropod dinosaur footprints preserved in the aeolian flagstones of the Botucatu Formation, Parana Basin.

  14. Scientific challenges of bioethanol production in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Amorim, Henrique V.; Lopes, Mario Lucio [Fermentec, Piracicaba, SP (Brazil); Castro Oliveira, Juliana Velasco de [Laboratorio Nacional de Ciencia e Tecnologia do Bioetanol (CTBE), Sao Paulo (Brazil); Buckeridge, Marcos S. [Laboratorio Nacional de Ciencia e Tecnologia do Bioetanol (CTBE), Sao Paulo (Brazil); Universidade de Sao Paulo, INCT do Bioetanol (Brazil). Dept. de Botanica; Goldman, Gustavo Henrique [Laboratorio Nacional de Ciencia e Tecnologia do Bioetanol (CTBE), Sao Paulo (Brazil); Universidade de Sao Paulo, INCT do Bioetanol (Brazil). Dept. de Ciencias Farmaceuticas

    2011-09-15

    Bioethanol (fuel alcohol) has been produced by industrial alcoholic fermentation processes in Brazil since the beginning of the twentieth century. Currently, 432 mills and distilleries crush about 625 million tons of sugarcane per crop, producing about 27 billion liters of ethanol and 38.7 million tons of sugar. The production of bioethanol from sugarcane represents a major large-scale technology capable of producing biofuel efficiently and economically, providing viable substitutes to gasoline. The combination of immobilization of CO{sub 2} by sugarcane crops by photosynthesis into biomass together with alcoholic fermentation of this biomass has allowed production of a clean and high-quality liquid fuel that contains 93% of the original energy found in sugar. Over the last 30 years, several innovations have been introduced to Brazilian alcohol distilleries resulting in the improvement of plant efficiency and economic competitiveness. Currently, the main scientific challenges are to develop new technologies for bioethanol production from first and second generation feedstocks that exhibit positive energy balances and appropriately meet environmental sustainability criteria. This review focuses on these aspects and provides special emphasis on the selection of new yeast strains, genetic breeding, and recombinant DNA technology, as applied to bioethanol production processes. (orig.)

  15. Assessing vaccine data recording in Brazil

    Directory of Open Access Journals (Sweden)

    Mario Lucio de Oliveira Novaes

    2015-12-01

    Full Text Available ABSTRACT: Objectives: Vaccines represent an important advancement for improving the general health of a population. The effective recording of vaccine data is a factor for the definition of its supply chain. This study investigated vaccine data recording relatively to data collected from vaccination rooms and data obtained from a government-developed Internet platform. Methods: The monthly recorded total number of diphtheria and tetanus toxoids and pertussis vaccine (alone or in combination with the Haemophilus influenzae type b conjugate vaccine doses administered in a medium-sized city of the Southeast region of Brazil was collected for the period January/2006 through December/2010 from two sources: City level (directly from vaccination rooms, the study "gold standard", and Federal level (from an Internet platform developed by the country government. Data from these sources were compared using descriptive statistics and the Percentage error. Results: The data values made available by the Internet platform differed from those obtained from the vaccination rooms, with a Percentage error relatively to the actual values in the range [-0.48; 0.39]. Concordant values were observed only in one among the sixty analyzed months (1.66%. Conclusions: A frequent and large difference between the number of diphtheria and tetanus toxoids and pertussis vaccine doses administered in the two levels was detected.

  16. The challenges of antimicrobial resistance in Brazil.

    Science.gov (United States)

    Rossi, Flávia

    2011-05-01

    Brazil is a country with continental proportions with high geographic and economic diversity. Despite its medical centers of excellence, antimicrobial resistance poses a major therapeutic challenge. Rates of methicillin-resistant Staphylococcus aureus are up to 60% and are related to an endemic Brazilian clone. Local resistance to vancomycin in Enterococci was first related to Enterococcus faecalis, which differs from European and American epidemiology. Also, local Klebsiella pneumoniae and Escherichia coli isolates producing extended-spectrum β-lactamases have a much higher prevalence (40%-50% and 10%-18%, respectively). Carbapenem resistance among the enterobacteriaceae group is becoming a major problem, and K. pneumoniae carbapenemase isolates have been reported in different states. Among nonfermenters, carbapenem resistance is strongly related to SPM-1 (Pseudomonasaeruginosa) and OXA-23 (Acinetobacter baumannii complex) enzymes, and a colistin-only susceptible phenotype has also emerged in these isolates, which is worrisome. Local actions without loosing the global resistance perspective will demand multidisciplinary actions, new policies, and political engagement.

  17. Application of Multiple Evaluation Models in Brazil

    Directory of Open Access Journals (Sweden)

    Rafael Victal Saliba

    2008-07-01

    Full Text Available Based on two different samples, this article tests the performance of a number of Value Drivers commonly used for evaluating companies by finance practitioners, through simple regression models of cross-section type which estimate the parameters associated to each Value Driver, denominated Market Multiples. We are able to diagnose the behavior of several multiples in the period 1994-2004, with an outlook also on the particularities of the economic activities performed by the sample companies (and their impacts on the performance through a subsequent analysis with segregation of companies in the sample by sectors. Extrapolating simple multiples evaluation standards from analysts of the main financial institutions in Brazil, we find that adjusting the ratio formulation to allow for an intercept does not provide satisfactory results in terms of pricing errors reduction. Results found, in spite of evidencing certain relative and absolute superiority among the multiples, may not be generically representative, given samples limitation.

  18. Perspectives for Sustainable Aviation Biofuels in Brazil

    Directory of Open Access Journals (Sweden)

    Luís A. B. Cortez

    2015-01-01

    Full Text Available The aviation industry has set ambitious goals to reduce carbon emissions in coming decades. The strategy involves the use of sustainable biofuels, aiming to achieve benefits from environmental, social, and economic perspectives. In this context, Brazilian conditions are favorable, with a mature agroindustry that regularly produces automotive biofuel largely adopted by Brazilian road vehicles, while air transportation has been growing at an accelerating pace and a modern aircraft industry is in place. This paper presents the main conclusions and recommendations from a broad assessment of the technological, economic, and sustainability challenges and opportunities associated with the development of drop-in aviation biofuels in Brazil. It was written by a research team that prepared the initial reports and conducted eight workshops with the active participation of more than 30 stakeholders encompassing the private sector, government institutions, NGOs, and academia. The main outcome was a set of guidelines for establishing a new biofuels industry, including recommendations for (a filling the identified research and development knowledge gaps in the production of sustainable feedstock; (b overcoming the barriers in conversion technology, including scaling-up issues; (c promoting greater involvement and interaction between private and government stakeholders; and (d creating a national strategy to promote the development of aviation biofuels.

  19. Translated Poetry in Brazil 1965-2004

    Directory of Open Access Journals (Sweden)

    John Milton

    2004-01-01

    Full Text Available Through a quantitative survey, this paper will examine the translation of poetry in Brazil in the last forty years, comparing poetry translated from English with poetry translated from other languages, showing the considerable growth in this area, and demonstrating that translated poetry can be considered a new genre in Brazilian literature. In order to do this, I attempted to discover translations of poetry published between 1965 and 2004, including reeditions of previously published works.Por meio de uma pesquisa quantitativa, este artigo analisa a tradução de poesia publicada no Brasil entre 1965 e 2004, enfatizando o grande interesse por parte de editoras e do público na sua publicação e demonstrando que São Paulo é a cidade onde mais se traduz poesia. Também mostra que o mercado concentra-se em obras clássicas, especialmente as de língua inglesa, e que a tradução de poesia é essencialmente uma atividade praticada por homens.

  20. The biomass in the world and in the Brazil; Biomassa no mundo e no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Ingham, John McNeill [BG Technologies LLC, Sao Paulo, SP (Brazil)]. E-mail: bgssystems@bgtllc.com

    2000-07-01

    This paper presents the status of the biomass utilization in Brazil. The paper considers the subjects as follows: general aspects of biomass utilization, electric power generation, present situation in the Brazil and in the world, and typical applications.

  1. Mangrove vegetation in Amazonia: a review of studies from the coast of Pará and Maranhão States, north Brazil Vegetação de manguezais na Amazônia: uma revisão dos estudos da costa dos Estados Pará e Maranhão, norte do Brasil

    Directory of Open Access Journals (Sweden)

    Moirah Paula Machado de Menezes

    2008-01-01

    Full Text Available The present study is a compilation of the literature about vegetation of mangrove forest of the north coast of Brazil. It synthesizes the knowledge about this important ecosystem and lists the currently available literature. The study focuses on the coast of Pará and Maranhão states, which are covered by a continuous belt of mangroves. The mangrove flora comprises six mangrove tree species and several associated species. Mangrove tree height and stem diameter vary as a function of abiotic local stand parameters. Seasonal variation in rainfall and salinity affect the species' phenology and litter fall. Local population use products derived from mangrove plants for different purposes (e.g. fuel; medicinal; rural construction. The increase in the coastal population has given rise to conflicts, which impact on mangrove forest.O presente estudo apresenta uma compilação da literatura sobre a vegetação dos manguezais da costa norte do Brasil, apresentando uma síntese do conhecimento e listando a literatura disponível. O estudo se concentra na costa dos estados do Pará e Maranhão que formam um cinturão contínuo de manguezais . Foram contabilizadas seis espécies arbóreas exclusivas de mangue e várias outras associadas. A altura e o diâmetro das árvores de mangue variam em função de parâmetros abióticos locais. As variações sazonais do regime de chuvas e da salinidade afetam a fenologia das espécies e a produção de serapilheira. A população costeira utiliza a flora do manguezal para diferentes fins (ex: combustível, medicinal, construção rural. O aumento da ocupação costeira inicia um processo de impacto para as florestas de mangue e a disponibilidade de seus recursos.

  2. Yellow fever in Brazil: thoughts and hypotheses on the emergence in previously free areas Fiebre amarilla en Brasil: reflexiones e hipótesis sobre la emergencia en áreas previamente libres Febre amarela no Brasil: reflexões e hipóteses sobre a emergência em áreas previamente livres

    Directory of Open Access Journals (Sweden)

    Pedro Fernando da Costa Vasconcelos

    2010-12-01

    Full Text Available This article describes and discusses factors associated to the reemergence of yellow fever and its transmission dynamics in the states of São Paulo (Southeastern Brazil and Rio Grande do Sul (Southern during 2008 and 2009. The following factors have played a pivotal role for the reemergence of yellow fever in these areas: large susceptible human population; high prevalence of vectors and primary hosts (non-human primates; favorable climate conditions, especially increased rainfall; emergence of a new genetic lineage; and circulation of people and/or monkeys infected by virus. There is a need for an effective surveillance program to prevent the reemergence of yellow fever in other Brazilian states.Son descritos y discutidos factores asociados con la emergencia y dinámica de la transmisión de la fiebre amarilla en los estados de Sao Paulo (Sureste de Brasil y Rio Grande do Sul (Sur de Brasil en los años 2008 y 2009. La interacción de los siguientes factores fue fundamental para la emergencia de fiebre amarilla en esos estados: la gran población humana susceptible; la elevada prevalencia de vectores y hospedadores (primates no humanos; condiciones climáticas favorables, principalmente el exceso de lluvias en el verano; la emergencia de un nuevo linaje viral; y la circulación de personas o monos infectados en fase virémica. Sólo un programa eficiente de vigilancia puede prevenir ocurrencias similares en esos estados brasileros.São descritos e discutidos fatores associados a emergência e dinâmica da transmissão da febre amarela nos estados de São Paulo e Rio Grande do Sul nos anos de 2008 e 2009. A interação dos seguintes fatores foi fundamental para a emergência de febre amarela nesses estados: a grande população humana suscetível; a elevada prevalência de vetores e hospedeiros (primatas não humanos; condições climáticas favoráveis, sobretudo o excesso de chuvas no verão; a emergência de uma nova linhagem viral; e a

  3. Erosão hídrica em latossolo vermelho sob diversos sistemas de manejo do cafeeiro no Sul de Minas Gerais Water erosion in red latosol under diverse coffee plant management systems at South of Minas Gerais State, Brazil

    Directory of Open Access Journals (Sweden)

    Ricardo Carvalho

    2007-12-01

    Full Text Available A erosão hídrica contribui para a redução da sustentabilidade dos sistemas agrícolas. O presente estudo avaliou, sob condições de chuva natural, as perdas de solo, água, nutrientes e matéria orgânica em um Latossolo Vermelho distroférrico típico, com 12 % de declividade, localizado na região de Lavras (MG. O trabalho foi conduzido em parcelas experimentais de perdas de solo. Os sistemas de manejo estudados foram: café sob cultivo convencional, com capina manual (CCC; cultivo convencional, com roçado (CCR; cultivo convencional, com utilização de herbicida (CCH; cultivo orgânico, com capina manual (COC; cultivo orgânico, com roçado (COR; e como referência parcela com solo descoberto (SD. Nos sistemas de manejo em que foi mantida a cobertura da vegetação espontânea (roçado, obteve-se maior eficiência de proteção do solo quando comparado aos sistemas onde houve exposição do solo (capina. No sistema com utilização de herbicida, observou-se um comportamento intermediário. Todos os sistemas de manejo estudados se mostraram conservacionistas quanto à proteção do solo em relação à erosão hídrica, onde o espaçamento adensado merece ser enfatizado.Water erosion reduces the sustainability of agricultural systems. The present study evaluated under natural rainfall, the soil, water, nutrients and organic carbon losses in a typic dystroferric Red Latosol, with 12 % slope, located at Lavras region, Minas Gerais state, Brazil. The work was conducted in soil losses experimental plots. The studied treatments were: coffee under conventional cultivation with manual weeding (CCC; conventional cultivation with cleared undergrowth (CCR; conventional cultivation with herbicide use (CCH; organic cultivation with manual weeding (COC; organic cultivation with cleared undergrowth (COR; and test plot with bare soil (SD. In the systems where the expontaneous vegetation covers were maintained (cleared undergrowth there was more

  4. Olefin metathesis in Brazil: Brazil is romping it{exclamation_point}; Metatese de olefinas no Brasil: 'Brazil is romping it{exclamation_point}'

    Energy Technology Data Exchange (ETDEWEB)

    Matos, Jose Milton E.; Batista, Nouga C.; Carvalho, Rogerio M.; Santana, Sirlane A. A.; Puzzi, Paula N.; Sanches, Mario; Lima-Neto, Benedito S. [Sao Paulo Univ., Sao Carlos, SP (Brazil). Inst. de Quimica]. E-mail: benedito@iqsc.usp.br

    2007-03-15

    Some aspects of the olefin metathesis reactions are summarized here (types of reactions, mechanism and catalysts). In particular, the research groups that have been working on this chemistry in Brazil are presented. The main goal of this paper is to make this type of reaction more widely known in the Brazilian chemical community. (author)

  5. Aquatic systems in semi-arid Brazil: limnology and management Ecossistemas aquáticos do semi-árido brasileiro: aspectos limnológicos e manejo

    Directory of Open Access Journals (Sweden)

    José Etham de Lucena Barbosa

    2012-03-01

    Full Text Available Aquatic systems in semi-arid Brazil include natural shallow lakes, artificial reservoirs and intermittent streams and rivers. These systems are distinctive features in the semi-arid landscape and comprise a range of associated systems functioning as an ever-changing mosaic of dry/wet patches. Lakes and reservoirs in semi-arid Brazil are subject to important periods of water shortages, whereas rivers and streams are characterized as highly variable and driven by the extremes of water flow and its absence. Within this view a catchment-scale approach must be used to create a holistic model to conceptualize and comprehend these aquatic systems, since the aquatic environment types in the semi-arid region of Brazil incorporate broader aspects within the catchment scale such as geomorphology, vegetation, climate and land use. This paper summarizes some of the information on the aquatic systems of the Brazilian semi-arid region and shows the importance of limnological studies in this region. It also attempts to establish perspectives for future research considering the catchment as a scale for surveying biological processes and limnological characteristics of the various aquatic systems. It is presented information on their overall structure and functioning, as well as characteristics of some biological communities, such as phytoplankton, periphyton, aquatic macrophytes, benthic invertebrates and fish. The importance of the understanding of eutrophication in reservoirs and the role of the dry phase in streams is emphasized, and information on possible actions of planning and management to improve water quality of reservoirs are presented.Os ecossistemas no semiárido brasileiro englobam lagos rasos naturais, reservatórios artificiais e rios e riachos intermitentes. Estes sistemas são particularidades na paisagem do semiárida e compreendem uma grande variedade de sistemas associados, funcionando como um mosaico em constante mudança entre épocas de

  6. Potential geographic distribution of hantavirus reservoirs in Brazil.

    Science.gov (United States)

    de Oliveira, Stefan Vilges; Escobar, Luis E; Peterson, A Townsend; Gurgel-Gonçalves, Rodrigo

    2013-01-01

    Hantavirus cardiopulmonary syndrome is an emerging zoonosis in Brazil. Human infections occur via inhalation of aerosolized viral particles from excreta of infected wild rodents. Necromys lasiurus and Oligoryzomys nigripes appear to be the main reservoirs of hantavirus in the Atlantic Forest and Cerrado biomes. We estimated and compared ecological niches of the two rodent species, and analyzed environmental factors influencing their occurrence, to understand the geography of hantavirus transmission. N. lasiurus showed a wide potential distribution in Brazil, in the Cerrado, Caatinga, and Atlantic Forest biomes. Highest climate suitability for O. nigripes was observed along the Brazilian Atlantic coast. Maximum temperature in the warmest months and annual precipitation were the variables that most influence the distributions of N. lasiurus and O. nigripes, respectively. Models based on occurrences of infected rodents estimated a broader area of risk for hantavirus transmission in southeastern and southern Brazil, coinciding with the distribution of human cases of hantavirus cardiopulmonary syndrome. We found no demonstrable environmental differences among occurrence sites for the rodents and for human cases of hantavirus. However, areas of northern and northeastern Brazil are also apparently suitable for the two species, without broad coincidence with human cases. Modeling of niches and distributions of rodent reservoirs indicates potential for transmission of hantavirus across virtually all of Brazil outside the Amazon Basin.

  7. Potential geographic distribution of hantavirus reservoirs in Brazil.

    Directory of Open Access Journals (Sweden)

    Stefan Vilges de Oliveira

    Full Text Available Hantavirus cardiopulmonary syndrome is an emerging zoonosis in Brazil. Human infections occur via inhalation of aerosolized viral particles from excreta of infected wild rodents. Necromys lasiurus and Oligoryzomys nigripes appear to be the main reservoirs of hantavirus in the Atlantic Forest and Cerrado biomes. We estimated and compared ecological niches of the two rodent species, and analyzed environmental factors influencing their occurrence, to understand the geography of hantavirus transmission. N. lasiurus showed a wide potential distribution in Brazil, in the Cerrado, Caatinga, and Atlantic Forest biomes. Highest climate suitability for O. nigripes was observed along the Brazilian Atlantic coast. Maximum temperature in the warmest months and annual precipitation were the variables that most influence the distributions of N. lasiurus and O. nigripes, respectively. Models based on occurrences of infected rodents estimated a broader area of risk for hantavirus transmission in southeastern and southern Brazil, coinciding with the distribution of human cases of hantavirus cardiopulmonary syndrome. We found no demonstrable environmental differences among occurrence sites for the rodents and for human cases of hantavirus. However, areas of northern and northeastern Brazil are also apparently suitable for the two species, without broad coincidence with human cases. Modeling of niches and distributions of rodent reservoirs indicates potential for transmission of hantavirus across virtually all of Brazil outside the Amazon Basin.

  8. Humane Education in Brazil: Organisation, Challenges and Opportunities.

    Science.gov (United States)

    Bachinski, Róber; Tréz, Thales; Alves, Gutemberg G; de C M Garcia, Rita; Oliveira, Simone T; da S Alonso, Luciano; Heck, Júlio X; Dias, Claudia M C; Costa Neto, João M; Rocha, Alexandro A; Ruiz, Valeska R R; Paixão, Rita L

    2015-11-01

    Humane education and the debate on alternatives to harmful animal use for training is a relatively recent issue in Brazil. While animal use in secondary education has been illegal since the late 1970s, animal use in higher science education is widespread. However, alternatives to animal experiments in research and testing have recently received attention from the Government, especially after the first legislation on animal experiments was passed, in 2008. This article proposes that higher science education should be based on a critical and humane approach. It outlines the recent establishment of the Brazilian Network for Humane Education (RedEH), as a result of the project, Mapping Animal Use for Undergraduate Education in Brazil, which was recognised by the 2014 Lush Prize. The network aims to create a platform to promote change in science education in Brazil, starting by quantitatively and qualitatively understanding animal use, developing new approaches adapted to the current needs in Brazil and Latin America, and communicating these initiatives nationally. This paper explores the trajectory of alternatives and replacement methods to harmful animal use in training and education, as well as the status of humane education in Brazil, from the point of view of educators and researchers engaged with the network.

  9. THE STATE OF RESEARCH ON CLEANER PRODUCTION IN BRAZIL

    Directory of Open Access Journals (Sweden)

    Geraldo Cardoso Oliveira Neto

    2016-09-01

    Full Text Available The application of cleaner production (CP practices in companies is not commonplace in Brazil. Moreover, there are significant difficulties in establishing partnerships among universities, companies, and the government. However, an increase in the number of companies concerned about the impacts of industrial activities on the environment has enabled the development of CP research. Hence, using a literature review and a bibliometric analysis to quantify the scientific production of CP, published in a congress promoted by the Journal of Cleaner Production in Brazil, and an analysis of social networks using UCINET-Draw, this study contributes to the current state of CP research in Brazil. Despite remarkable developments, shareholders and entrepreneurs still lack knowledge about the subsidies/funds to implement CP made available by the government, which would improve the implementation of CP practices. Moreover, university research programs may help companies to generate innovations in this field. This study is one of the first to review CP practices in Brazil, and proposes a framework to promote CP practices in Brazil.

  10. Constructing public oral health policies in Brazil: issues for reflection

    Directory of Open Access Journals (Sweden)

    Catharina Leite Matos Soares

    2012-01-01

    Full Text Available This paper addresses the construction of public oral health policies in Brazil by reviewing the available literature. It includes a discussion of the social responses given by the Brazilian State to oral health policies and the relationship of these responses with the ideological oral health movements that have developed globally, and that have specifically influenced oral health policies in Brazil. The influence of these movements has affected a series of hegemonic practices originating from both Market Dentistry and Preventive and Social Dentistry in Brazil. Among the state activities that have been set into motion, the following stand out: the drafting of a law to regulate the fluoridation of the public water supply, and the fluoridation of commercial toothpaste in Brazil; epidemiological surveys to analyze the status of the Brazilian population's oral health; the inclusion of oral health in the Family Health Strategy (Estratégia de Saúde da Família - ESF; the drawing up of the National Oral Health Policy, Smiling Brazil (Brasil Sorridente. From the literature consulted, the progressive expansion of state intervention in oral health policies is observed. However, there remains a preponderance of hegemonic "dental" practices reproduced in the Unified Public Health Service (Sistema Único de Saúde - SUS and the Family Health Strategy.

  11. A review on human attitudes towards reptiles in Brazil.

    Science.gov (United States)

    Alves, Rômulo Romeu Nóbrega; Vieira, Kleber Silva; Santana, Gindomar Gomes; Vieira, Washington Luiz Silva; Almeida, Waltécio Oliveira; Souto, Wedson Medeiros Silva; Montenegro, Paulo Fernando Guedes Pereira; Pezzuti, Juarez Carlos Brito

    2012-11-01

    For many millennia humans and reptiles have interacted, but the attitude of humans towards these animals has depended on culture, environment, and personal experience. At least 719 reptile species are known to occur in Brazil and about 11% of this fauna has been exploited for many different purposes, including bushmeat, leather, ornamental and magic/religious uses, and as folk medicines. Brazil can therefore serve as an interesting case study for better understanding reptile use by human societies, and the present paper catalogues some of the reptile species being used in Brazil and discusses implications for their conservation. A literature review indicated that 81 reptile species are culturally important in this country, with 47 (58%) species having multiple uses, 54 being used for medicinal purposes, 38 as food, 28 for ornamental or decorative purposes, 20 used in magic/religious practices, 18 as pets, and 40 are commonly killed when they come into contact with humans. Regarding their conservation status, 30 (37.5%) are included on State's Red List, Brazilian Red List or the IUCN Red List. There are many forms of interaction between reptiles and humans in Brazil-although most of them are quite negative in terms of wildlife conservation-which reinforces the importance of understanding such uses and interactions in the context of protecting reptiles in Brazil. A better understanding of the cultural, social, and traditional roles of these reptiles is fundamental to establishing management plans for their sustainable use.

  12. Socioeconomic and regional differences in active transportation in Brazil

    Directory of Open Access Journals (Sweden)

    Thiago Hérick de Sá

    2016-01-01

    Full Text Available ABSTRACT OBJECTIVE To present national estimates regarding walking or cycling for commuting in Brazil and in 10 metropolitan regions. METHODS By using data from the Health section of 2008’s Pesquisa Nacional por Amostra de Domicílio (Brazil’s National Household Sample Survey, we estimated how often employed people walk or cycle to work, disaggregating our results by sex, age range, education level, household monthly income per capita, urban or rural address, metropolitan regions, and macro-regions in Brazil. Furthermore, we estimated the distribution of this same frequency according to quintiles of household monthly income per capita in each metropolitan region of the country. RESULTS A third of the employed men and women walk or cycle from home to work in Brazil. For both sexes, this share decreases as income and education levels rise, and it is higher among younger individuals, especially among those living in rural areas and in the Northeast region of the country. Depending on the metropolitan region, the practice of active transportation is two to five times more frequent among low-income individuals than among high-income individuals. CONCLUSIONS Walking or cycling to work in Brazil is most frequent among low-income individuals and the ones living in less economically developed areas. Active transportation evaluation in Brazil provides important information for public health and urban mobility policy-making

  13. Mesozoic dinosaurs from Brazil and their biogeographic implications.

    Science.gov (United States)

    Bittencourt, Jonathas S; Langer, Max C

    2011-03-01

    The record of dinosaur body-fossils in the Brazilian Mesozoic is restricted to the Triassic of Rio Grande do Sul and Cretaceous of various parts of the country. This includes 21 named species, two of which were regarded as nomina dubia, and 19 consensually assigned to Dinosauria. Additional eight supraspecific taxa have been identified based on fragmentary specimens and numerous dinosaur footprints known in Brazil. In fact, most Brazilian specimens related to dinosaurs are composed of isolated teeth and vertebrae. Despite the increase of fieldwork during the last decade, there are still no dinosaur body-fossils of Jurassic age and the evidence of ornithischians in Brazil is very limited. Dinosaur faunas from this country are generally correlated with those from other parts of Gondwana throughout the Mesozoic. During the Late Triassic, there is a close correspondence to Argentina and other south-Pangaea areas. Mid-Cretaceous faunas of northeastern Brazil resemble those of coeval deposits of North Africa and Argentina. Southern hemisphere spinosaurids are restricted to Africa and Brazil, whereas abelisaurids are still unknown in the Early Cretaceous of the latter. Late Cretaceous dinosaur assemblages of south-central Brazil are endemic only to genus or, more conspicuously, to species level, sharing closely related taxa with Argentina, Madagascar, Indo-Pakistan and, to a lesser degree, continental Africa.

  14. Novel 4-(piperidin-4-yl)-1-hydroxypyrazoles as gamma-aminobutyric acidA receptor ligands

    DEFF Research Database (Denmark)

    Møller, Henriette A; Sander, Tommy; Kristensen, Jesper Langgaard;

    2010-01-01

    A series of substituted 1-hydroxypyrazole analogues of the GABA(A) receptor partial agonist 5-(4-piperidyl)-3-isoxazolol (4-PIOL) have been synthesized and pharmacologically characterized. Several of the analogues displayed K(i) in the low nanomolar range at the native GABA(A) receptors and potent...... antagonism of the alpha(1)beta(2)gamma(2) receptor. It appears that several regions situated in proximity to the core of the orthosteric binding site of the GABA(A) receptor are able to accommodate large hydrophobic substituents....

  15. Actividad antibacteriana de soluciones acidas de quitosano obtenido de exoesqueleto de camarón

    Directory of Open Access Journals (Sweden)

    Alexander Pérez Cordero

    2014-06-01

    Full Text Available Título en ingles: Antibacterial activity of chitosan acid solutions obtained from shrimp exoskeleton Título: quitosano actividad antibacterianaResumen: El trabajo tuvo como objetivo evaluar la actividad antibacteriana in vitro de soluciones ácidas de quitosano obtenido a partir del exoesqueleto de camarón, sobre siete bacterias patógenas, cinco de las cuales corresponden a patógenas de humanos (Enterococcus faecalis ATCC 29212, Escherichia coli UDS, Pseudomonas aeruginosa ATCC 27853, Klebsiella oxytoca ATCC 43863 y  K.  oxytoca ATCC 43086 y las fitopatógenas (Pectobacterium sp UDS y  Burkholderia glumae 320012-CIAT. Concentraciones de soluciones de quitosano  de 1.0, 1.5, 2.0, 2.5, 3.0 y 3.5 % (v/v disuelto en  ácido acético de 1.0, 1.5, 2.0 % (v/v fueron preparadas; a partir de estas concentraciones, mediante la técnica de Kirby-Bauer se evaluó la actividad antibacteriana in vitro. Los resultados de actividad antimicrobiana mostraron diferencias altamente significativas entre la especie de bacteria y los tratamientos de quitosano. Las bacterias P. aeruginosa, E. coli, K. oxytoca (ATCC 43086 y ATCC 43863 fueron las más susceptibles a los tratamientos, mientras que E. faecalis, Pectobacterium sp y B. glumae mostraron resistencia. Los tratamientos T3, T4, T5, T7, T8, T9 en donde las concentraciones de quitosano estuvieron por encima a las del ácido acético, se presentaron mayores valores medios de actividad de antimicrobiana en mm y aumentó este valor para los tratamientos  T9 (5.8095 mm, T8 (6.00 mm para y  T9 (5.8095 mm, donde las concentraciones  de quitosano  de 2.5 y 3.5%, disuelta en ácido acético fueron igual a 2%.  Los resultados de este estudio en el Caribe Colombiano permitirán a futuro el reaprovechamiento del exoesqueleto de camarón como fuente de quitosano como un compuesto potencial frente al manejo al problema de salud pública ocasionada por las enfermedades bacterianas. Palabras claves: camarón, quitosano, bacterias, patógenas.Abstract: The work was to evaluate the in vitro antibacterial activity of chitosan obtained from exoskeleton of shrimp, on seven pathogenic bacteria, five of which corresponded to human pathogenic strain (ATCC 29212 Enterococcus faecalis, Escherichia coli UDS, Pseudomonas aeruginosa ATCC 27853, Klebsiella oxytoca, K. oxytoca ATCC 43863 and ATCC 43086 and two phytopathogenic strain (Pectobacterium sp UDS and Burkholderia glumae 320012-CIAT. Solution of chitosan of 1.0, 1.5, 2.0, 2.5, 3.0 and 3.5% (v/v dissolved in 1.0, 1.5, 2.0% (v / v acetic acid was prepared, and with these concentrations through the Kirby-Bauer technique and the antibacterial activity in vitro was evaluated. The results of the antimicrobial activity showed significant differences between the species of bacteria and chitosan treatments evaluated. P. aeruginosa, E. coli and K. oxytoca (ATCC 43086 and ATCC 43863 were the most susceptible to the treatments, while E. faecalis, B. glumae and Pectobacterium sp were resistant. The treatments T3, T4, T5, T7, T8, T9, where chitosan concentrations were above the acetic acid, showed higher mean mm antimicrobial activity and this value increased to T9 treatments (5.8095 mm , T8 (6.00 mm and T9 (5.8095 mm, where chitosan concentrations 2.5 and 3.5% solution in acetic acid was equal to 2%. The results of this study in the Colombian Caribbean enable future reuse of the exoskeleton of shrimp as a source of chitosan as a potential compound to handle the public health problem caused by bacterial diseases.Key words: shrimp, chitosan, bacteria, pathogens. 

  16. 75 FR 57501 - Frozen Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam

    Science.gov (United States)

    2010-09-21

    ... COMMISSION Frozen Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam AGENCY: United States... orders on frozen warmwater shrimp from Brazil, China, India, Thailand, and Vietnam. SUMMARY: The... orders on frozen warmwater shrimp from Brazil, China, India, Thailand, and Vietnam would be likely...

  17. 75 FR 48724 - Frozen Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam

    Science.gov (United States)

    2010-08-11

    ... COMMISSION Frozen Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam AGENCY: United States... orders on frozen warmwater shrimp from Brazil, China, India, Thailand, and Vietnam. SUMMARY: The... orders on frozen warmwater shrimp from Brazil, China, India, Thailand, and Vietnam would be likely...

  18. 75 FR 22424 - Frozen Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam

    Science.gov (United States)

    2010-04-28

    ... COMMISSION Frozen Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam AGENCY: United States... concerning the antidumping duty orders on frozen warmwater shrimp from Brazil, China, India, Thailand, and... antidumping duty orders on frozen warmwater shrimp from Brazil, China, India, Thailand, and Vietnam would...

  19. First report on the entomopathogenic genus Neozygites (Entomophthoromycota) and Neozygites osornensis on aphids in Brazil

    Science.gov (United States)

    The genus Neozygites has been known in Brazil until now only on mites, and this is its first report on aphids in Brazil. Tree-dwelling aphids (Cinara sp.) on a cypress tree were regularly monitored for entomopathogenic fungi in the city of Terezópolis de Goiás in Central Brazil between July 2014 and...

  20. 77 FR 23659 - Revocation of Antidumping Duty Order: Certain Orange Juice From Brazil

    Science.gov (United States)

    2012-04-20

    ... duty order on OJ from Brazil. \\1\\ See Initiation of Five-Year (``Sunset'') Review, 76 FR 5563 (Feb. 1, 2011) (Initiation Notice). \\2\\ See Certain Orange Juice From Brazil, 77 FR 22343 (Apr. 13, 2012) (ITC... Orange Juice From Brazil, 52 FR 16426 (May 5, 1987). \\4\\ The Department preliminarily found that...

  1. A new species of the genus Xanthomicrogaster Cameron (Hymenoptera: Braconidae: Microgastrinae) from Brazil

    NARCIS (Netherlands)

    Penteado-Dias, A.M.; Shimabukuro, P.H.F.; Achterberg, van C.

    2002-01-01

    One new Xanthomicrogaster species from Brazil is described, and X. fortipes Cameron, 1911, is redescribed and reported from Brazil and Suriname for the first time. A key to the species is presented as well as data about the geographical distribution in Brazil.

  2. 77 FR 30504 - Certain Orange Juice From Brazil: Notice of Rescission of Antidumping Duty Administrative Review

    Science.gov (United States)

    2012-05-23

    ....\\2\\ \\2\\ See Revocation of Antidumping Duty Order: Certain Orange Juice From Brazil, 77 FR 23659 (Apr... International Trade Administration Certain Orange Juice From Brazil: Notice of Rescission of Antidumping Duty... orange juice (OJ) from Brazil for a period of review (POR) of March 1, 2011, through February 29,...

  3. 76 FR 17391 - Applications for New Awards; United States-Brazil Higher Education Consortia Program

    Science.gov (United States)

    2011-03-29

    ... Applications for New Awards; United States-Brazil Higher Education Consortia Program AGENCY: Office of... Postsecondary Education (FIPSE)--Special Focus Competition: United States (U.S.)- Brazil Higher Education... institution of higher education (IHE) in another country in Latin America (in addition to Brazil) to create...

  4. 78 FR 30272 - Certain Frozen Warmwater Shrimp from Brazil: Notice of Rescission of Antidumping Duty...

    Science.gov (United States)

    2013-05-22

    ... International Trade Administration Certain Frozen Warmwater Shrimp from Brazil: Notice of Rescission of... Administrative Review'' of the antidumping duty order on certain frozen warmwater shrimp from Brazil for the... review of the antidumping duty order on certain frozen warmwater shrimp from Brazil with respect to...

  5. 75 FR 49900 - Polyethylene Terephthalate Film, Sheet, and Strip From Brazil: Preliminary Results of Antidumping...

    Science.gov (United States)

    2010-08-16

    ... Sales at Less than Fair Value: Certain Frozen and Canned Warmwater Shrimp From Brazil, 69 FR 76910..., and Strip from Brazil, 73 FR 55035, 55036 (September 24, 2008) (Final Determination). The Department... Than Fair Value: Polyethylene Terephthalate Film, Sheet, and Strip from Brazil, 73 FR 24560 (May...

  6. 77 FR 32498 - Certain Frozen Warmwater Shrimp From Brazil: Notice of Rescission of Antidumping Duty...

    Science.gov (United States)

    2012-06-01

    ... International Trade Administration Certain Frozen Warmwater Shrimp From Brazil: Notice of Rescission of... the antidumping duty order on certain frozen warmwater shrimp from Brazil for the period of review... the antidumping duty order on certain frozen warmwater shrimp from Brazil with respect to...

  7. 75 FR 32915 - Certain Frozen Warmwater Shrimp From Brazil: Notice of Rescission of Antidumping Duty...

    Science.gov (United States)

    2010-06-10

    ... International Trade Administration Certain Frozen Warmwater Shrimp From Brazil: Notice of Rescission of... the antidumping duty order on certain frozen warmwater shrimp from Brazil for the period of review... on certain frozen warmwater shrimp from Brazil. On April 7, 2009, the Department published a...

  8. 76 FR 38360 - Certain Frozen Warmwater Shrimp From Brazil: Notice of Rescission of Antidumping Duty...

    Science.gov (United States)

    2011-06-30

    ... International Trade Administration Certain Frozen Warmwater Shrimp From Brazil: Notice of Rescission of... the antidumping duty order on certain frozen warmwater shrimp from Brazil for the period of review... on certain frozen warmwater shrimp from Brazil. On April 1, 2011, the Department published a...

  9. Promoting Bio-Ethanol in the United States by Incorporating Lessons from Brazil's National Alcohol Program

    Science.gov (United States)

    Du, Yangbo

    2007-01-01

    Current U.S. energy policy supports increasing the use of bio-ethanol as a gasoline substitute, which Brazil first produced on a large scale in response to the 1970s energy crises. Brazil's National Alcohol Program stood out among its contemporaries regarding its success at displacing a third of Brazil's gasoline requirements, primarily due to…

  10. 75 FR 23295 - Iron Construction Castings From Brazil, Canada, and China

    Science.gov (United States)

    2010-05-03

    ... castings from Brazil, the antidumping duty order on ``heavy'' iron construction castings from Canada, and the antidumping duty orders on iron construction castings from Brazil and China. SUMMARY: The... ``heavy'' iron construction castings from Brazil, the antidumping duty order on ``heavy''...

  11. 75 FR 70900 - Certain Iron Construction Castings From Brazil, Canada, and the People's Republic of China...

    Science.gov (United States)

    2010-11-19

    ... International Trade Administration Certain Iron Construction Castings From Brazil, Canada, and the People's... certain iron construction castings (``castings'') from Brazil, Canada, and the People's Republic of China... were the orders to be revoked. See Certain Iron Construction Castings From Brazil, Canada, and...

  12. Morphological and molecular characteristics do not confirm popular classification of the Brazil nut tree in Acre, Brazil.

    Science.gov (United States)

    Sujii, P S; Fernandes, E T M B; Azevedo, V C R; Ciampi, A Y; Martins, K; de O Wadt, L H

    2013-01-01

    In the State of Acre, the Brazil nut tree, Bertholletia excelsa (Lecythidaceae), is classified by the local population into two types according to morphological characteristics, including color and quality of wood, shape of the trunk and crown, and fruit production. We examined the reliability of this classification by comparing morphological and molecular data of four populations of Brazil nut trees from Vale do Rio Acre in the Brazilian Amazon. For the morphological analysis, we evaluated qualitative and quantitative information of the trees, fruits, and seeds. The molecular analysis was performed using RAPD and ISSR markers, with cluster analysis. Significant differences were found between the two types of Brazil nut trees for the characters diameter at breast height, fruit yield, fruit size, and number of seeds per fruit. Despite the significant correlation between the morphological characteristics and the popular classification, we observed all possible combinations of morphological characteristics in both types of Brazil nut trees. In some individuals, the classification did not correspond to any of the characteristics. The results obtained with molecular markers showed that the two locally classified types of Brazil nut trees did not differ genetically, indicating that there is no consistent separation between them.

  13. IN SEARCH OF A TEACHING SOCIOLINGUISTIC PORTUGUESE LANGUAGE IN BRAZIL

    Directory of Open Access Journals (Sweden)

    Talita de Cássia Marine

    2016-06-01

    Full Text Available One of the barriers in teaching Portuguese as mother tongue is the treatment of linguistic variation and fundamentally grammatical knowledge permeated by different linguistic norms. So in this article, we propose some reflections on the current situation of the Portuguese language teaching in Brazil, presenting a literature review on the topic, especially about the concepts of belief and linguistic attitudes studies sociolinguistic and documents the Brazilian government. Still we gather some results of previous studies on language attitudes and beliefs and we quote three factors that show that the Portuguese-speaking education in Brazil is still far from a reflective teaching and culturally sensitive pedagogy. To prove such factors mentioned, we mentioned examples of speeches and activities of students of primary and secondary schools as well as letters of course students. Thus, in this article, we point out how it is still challenging to think of a sociolinguistic conception of Portuguese language teaching in Brazil.

  14. Medical and agricultural entomology in Brazil: a historical approach.

    Science.gov (United States)

    Benchimol, J L

    2008-12-01

    Medical Entomology emerged in Brazil in the late nineteenth century, through the initiative of a group of physicians dedicated to researching microorganisms related to diseases of public health importance, especially yellow fever and malaria. They led the institutionalization of Bacteriology and Tropical Medicine in southeast Brazil and the sanitation of coastal cities and, subsequently, rural areas. Medical Entomology provided the professionals who would undertake campaigns against agricultural plagues, as well as the institutionalization of Agronomy and Veterinary Medicine. In the present article, I intend to show how relations between the professionals who gave life to Medical Entomology in Brazil were interwoven and to illustrate their relations with entomologists in other countries. I will also present an overview of the research problems faced by Brazilian entomologists at the turn of the nineteenth century and early decades of the twentieth.

  15. First isolation of enterovirus 71 (EV-71 from Northern Brazil

    Directory of Open Access Journals (Sweden)

    Lamarão Leticia Martins

    2003-01-01

    Full Text Available Enterovirus 71 (EV-71 has been associated to cases of neurological disease in many countries including Brazil. This virus has now been reported from three of the five Brazilian regions. Our study relates the findings concerning to the first isolate of this virus in Northern region of Brazil. A 15-month old female patient, from the rural zone of the municipality of Santana do Araguaia in southern Pará state was admitted at the hospital with acute, flaccid, asymmetric and ascending motor deficiency, located in the right lower limb. Stools samples from this child were inoculated in RD cells and was isolated an EV-71. We plan to sequence our strain and compare it to other isolates in Brazil. Differences at the molecular level can explain why EV-71 strains circulating in other continents, such as Asia, appear to be more virulent.

  16. Explaining social discrimination: racism in Brazil and xenophobia in Spain.

    Science.gov (United States)

    Camino, Leoncio; Álvaro, José Luis; Torres, Ana Raquel R; Garrido, Alicia; Morais, Thiago; Barbosa, Juliana

    2013-01-01

    The present study investigates the arguments used by university students in order to explain social differences between social minorities and majorities. In Brazil, the issues investigated refer to White and Black people. In Spain, the reference is to native Spaniards and Moroccan immigrants. The participants were 144 Brazilians and 93 Spaniards, who answered a questionnaire composed of socio-demographic variables and one open question about the causes of social inequalities between Black and White people in Brazil and between autochthonous Spaniards and Moroccan Immigrants. A model is proposed to integrate the four discursive classes found using ALCESTE software. In Brazil, the strongest argument is based on the historical roots of the exploitation of Black people. In Spain, cultural differences are the main explanation for social inequalities.

  17. Three distinct begomoviruses associated with soybean in central Brazil.

    Science.gov (United States)

    Fernandes, Fernanda R; Cruz, A R R; Faria, J C; Zerbini, F M; Aragão, Francisco J L

    2009-01-01

    We report the complete nucleotide sequences of geminiviruses of the genus Begomovirus infecting soybean (Glycine max) in central Brazil. Samples obtained from soybean plants collected at Santo Antonio de Goiás, Goiás State, showing typical symptoms of viral infection, were analyzed. Infection was confirmed by PCR-based amplification of a DNA-A fragment with universal begomovirus primers. Total DNA from infected plants was then subjected to rolling-circle amplification (RCA), and 2.6-kb molecules were cloned into plasmid vectors. Sequencing of the three DNA-A and two DNA-B clones thus obtained confirmed infection by three distinct begomoviruses: bean golden mosaic virus, Sida micrantha mosaic virus and okra mottle virus, the last of which was reported recently to be a novel virus infecting okra plants in Brazil. Begomovirus infection of soybean plants has been reported sporadically in Brazil and has generally not been considered to be of economic relevance.

  18. Anthropology of health in Brazil: a border discourse.

    Science.gov (United States)

    Langdon, Esther Jean; Follér, Maj-Lis

    2012-01-01

    This article traces the development of anthropological research on health in Brazil in light of discussions on modernity/coloniality and world anthropologies. Originating in the 1970s, stimulated by external and internal pressures for scientific production and along with the expansion of graduate programs, a network of anthropologists has consolidated and multiplied in Brazil. We describe the development of research groups, meetings, and publications in order to characterize Brazilian anthropology of health as a research program that distinguishes itself from North Atlantic medical anthropology. We examine the visibility and circulation of references in academic publications to explore the participation of Brazilians in the global discourse and, more specifically, in the North-South dialogue. From a comparative perspective, we argue that anthropological investigations of health reflect a perspective and ethos distinctive to Brazil and its historical and political processes.

  19. Corynebacterium ulcerans diphtheria: an emerging zoonosis in Brazil and worldwide.

    Science.gov (United States)

    Dias, Alexandre Alves de Souza de Oliveira; Santos, Louisy Sanchez; Sabbadini, Priscila Soares; Santos, Cíntia Silva; Silva Junior, Feliciano Correa; Napoleão, Fátima; Nagao, Prescilla Emy; Villas-Bôas, Maria Helena Simões; Hirata Junior, Raphael; Guaraldi, Ana Luíza Mattos

    2011-12-01

    The article is a literature review on the emergence of human infections caused by Corynebacterium ulcerans in many countries including Brazil. Articles in Medline/PubMed and SciELO databases published between 1926 and 2011 were reviewed, as well as articles and reports of the Brazilian Ministry of Health. It is presented a fast, cost-effective and easy to perform screening test for the presumptive diagnosis of C. ulcerans and C. diphtheriae infections in most Brazilian public and private laboratories. C. ulcerans spread in many countries and recent isolation of this pathogen in Rio de Janeiro, southeastern Brazil, is a warning to clinicians, veterinarians, and microbiologists on the occurrence of zoonotic diphtheria and C. ulcerans dissemination in urban and rural areas of Brazil and/or Latin America.

  20. Reforming Institutions from Inside: Federalism and Inequality in Brazil

    Directory of Open Access Journals (Sweden)

    Gabriel Cepaluni

    2015-02-01

    Full Text Available Some authors argue that the federal system in Brazil leads to economic inequality. Nevertheless, there are federations with low levels of inequality, such as Canada, Australia and Germany. Using the Brazilian case as an example, we argue that this can be partly explained by the rules of intergovernmental transfers and taxation of the federation. I propose a typological theory of inter-jurisdictional transfers: inequality reducing transfers; transfers that maintain the status quo or are ambiguous; and inequality producing transfers. Gradual changes in these federal rules allowed Brazil to cease being the country of growing levels of inequality of the 60s and 70s and to become a country that drastically reduced inequality in the 2000s. I emphasize that many intergovernmental transfer reforms, especially regarding taxation, are in need to keep Brazil on the same path.

  1. Nematodes of elasmobranch fishes from the southern coast of Brazil

    Directory of Open Access Journals (Sweden)

    Marcelo Knoff

    2001-01-01

    Full Text Available New records for nematode species recovered from elasmobranch fishes in Brazil are established and new systematical arrangements proposed. Parascarophis sphyrnae Campana-Rouget, 1955 from the spiral valve of Sphyrna zygaena is referred for the first time in South America as a new host record. Procamallanus (S. pereirai Annereaux, 1946, from the spiral valve of Raja castelnaui is reported parasitizing an elasmobranch host. Nematode larvae of the genera Anisakis, Contracaecum, Pseudoterranova and Raphidascaris are listed from the stomach and spiral valves of several hosts. Anisakidae larvae previously referred in Brazil in the genus Phocanema should be reallocated in Pseudoterranova. Nematodes of the genera Anisakis, Contracaecum, Pseudoterranova and Raphidascaris are reported for the first time parasitizing elasmobranchs in Brazil.

  2. [Generic drugs in Brazil: historical overview and legislation].

    Science.gov (United States)

    Araújo, Lorena Ulhôa; Albuquerque, Kemile Toledo de; Kato, Kelly Cristina; Silveira, Gleiciely Santos; Maciel, Náira Rezende; Spósito, Pollyanna Álvaro; Barcellos, Neila Márcia Silva; Souza, Jacqueline de; Bueno, Márcia; Storpirtis, Sílvia

    2010-12-01

    The Brazilian generic drugs policy was implemented in 1999 with the aim of stimulating competition in the market, improve the quality of drugs and improve the access of the population to drug treatment. The process of implementing this policy allowed the introduction and discussion of concepts that had never before been used in the context of drug registration in Brazil: bioavailability, bioequivalence, pharmaceutical equivalence, generic drugs, biopharmaceutical classification system, biowaiver. The present article provides definitions for these concepts in the context of Brazilian legislation as well as a historical and chronological description of the implementation of the generic drugs policy in Brazil, including a list of current generic drug legislation. This article contributes to the understanding of the Brazilian generic drugs policy and facilitates the search for information concerning the legal requirements for registration of drugs in Brazil.

  3. Scale Insects (Hemiptera: Coccoidea) on Myrciaria dubia (Myrtaceae) in Brazil.

    Science.gov (United States)

    Wolff, V R S; Kondo, T; Peronti, A L B G; Noronha, A C S

    2016-06-01

    Commercial cultivation of the fruit tree Myrciaria dubia (Myrtaceae) is being developed in Brazil but phytophagous insects, including scale insects (Hemiptera: Coccoidea), can become pests in plantations. The coccids Ceroplastes jamaicensis White, Coccus viridis (Green), Parasaissetia nigra (Nietner), Pseudokermes vitreus (Cockerell) (Coccidae), and the diaspidid Pseudaonidia trilobitiformis (Green) were collected on M. dubia in the municipality of Belém and Tomé-Açu, state of Pará (PA), metropolitan and Northeast Pará mesoregions, Brazil. A key to species of Coccoidea recorded on M. dubia, based on adult females, is provided. Photographs for all scale insects reported on M. dubia are provided. Ceroplastes jamaicensis is recorded for the first time for Brazil and is herein reported for the first time associated with this host.

  4. Plant poisonings in livestock in Brazil and South Africa

    Directory of Open Access Journals (Sweden)

    Mary-Louise Penrith

    2015-03-01

    Full Text Available Information on intoxication of livestock by plants in Brazil, in terms of cause, clinical signs and pathology, is compared with information on livestock poisoning by plants in South Africa. Plant poisoning, including mycotoxicosis, is considered to be one of three major causes of death in livestock in Brazil, which is one of the top beef producing countries in the world, with a cattle population of more than 200 million. Cattle production in South Africa is on a more modest scale, but with some 600 species of plants and fungi known to cause toxicity in livestock, as opposed to some 130 species in Brazil, the risk to livestock in South Africa appears to be much greater. The comparisons discussed in this communication are largely restricted to ruminants.

  5. Genetics against race: Science, politics and affirmative action in Brazil.

    Science.gov (United States)

    Kent, Michael; Wade, Peter

    2015-12-01

    This article analyses interrelations between genetic ancestry research, political conflict and social identity. It focuses on the debate on race-based affirmative action policies, which have been implemented in Brazil since the turn of the century. Genetic evidence of high levels of admixture in the Brazilian population has become a key element of arguments that question the validity of the category of race for the development of public policies. In response, members of Brazil's black movement have dismissed the relevance of genetics by arguing, first, that in Brazil race functions as a social--rather than a biological--category, and, second, that racial classification and discrimination in this country are based on appearance, rather than on genotype. This article highlights the importance of power relations and political interests in shaping public engagements with genetic research and their social consequences.

  6. The epidemiology of laryngeal cancer in Brazil

    Directory of Open Access Journals (Sweden)

    Victor Wünsch

    Full Text Available The city of São Paulo exhibits one of the highest incidences of laryngeal cancer in world and Brazil presents remarkable occurrence, compared with other Latin American countries. Around 8,000 new cases and 3,000 deaths by laryngeal cancer occur annually in the Brazilian population. In the city of São Paulo, incidence rates for laryngeal cancer among males have been decreasing since the late 1980s while, among females, the rates have shown a stable trend. This phenomenon is probably the expression of changes in gender behavior related to tobacco smoking. Several risk factors are involved in the genesis of laryngeal cancer. The most important are tobacco smoking and alcohol intake, but occupational hazards have also been associated with the disease, such as asbestos, strong inorganic acids, cement dust and free crystalline silica. Additionally, salted meat and total fat intake have been linked to elevated risk of laryngeal cancer. Conversely, several studies have confirmed that fruits, raw leaf vegetables and legumes protect against this cancer. Some researchers have postulated a possible association between laryngeal squamous cell carcinoma and human papilloma virus (HPV, but this is not universally accepted. Gastroesophageal reflux disease is weakly, but consistently correlated with laryngeal cancer. Familial cancer clusters, particularly of head and neck tumors, seem to increase the risk of laryngeal cancer. Some genetic polymorphisms, such as of genes that code for xenobiotic-metabolizing enzymes, have shown elevated risk for laryngeal cancer according to recent studies. Public health policies regarding the control of tobacco smoking and alcohol consumption, and also surveillance of carcinogen exposure in occupational settings, could have an impact on laryngeal cancer. No proposals for screening have been recommended for laryngeal cancer, but one diagnostic goal should be to avoid treatment delay when suspected symptoms have been observed.

  7. Hospital deaths and adverse events in Brazil

    Directory of Open Access Journals (Sweden)

    Pavão Ana Luiza B

    2011-09-01

    Full Text Available Abstract Background Adverse events are considered a major international problem related to the performance of health systems. Evaluating the occurrence of adverse events involves, as any other outcome measure, determining the extent to which the observed differences can be attributed to the patient's risk factors or to variations in the treatment process, and this in turn highlights the importance of measuring differences in the severity of the cases. The current study aims to evaluate the association between deaths and adverse events, adjusted according to patient risk factors. Methods The study is based on a random sample of 1103 patient charts from hospitalizations in the year 2003 in 3 teaching hospitals in the state of Rio de Janeiro, Brazil. The methodology involved a retrospective review of patient charts in two stages - screening phase and evaluation phase. Logistic regression was used to evaluate the relationship between hospital deaths and adverse events. Results The overall mortality rate was 8.5%, while the rate related to the occurrence of an adverse event was 2.9% (32/1103 and that related to preventable adverse events was 2.3% (25/1103. Among the 94 deaths analyzed, 34% were related to cases involving adverse events, and 26.6% of deaths occurred in cases whose adverse events were considered preventable. The models tested showed good discriminatory capacity. The unadjusted odds ratio (OR 11.43 and the odds ratio adjusted for patient risk factors (OR 8.23 between death and preventable adverse event were high. Conclusions Despite discussions in the literature regarding the limitations of evaluating preventable adverse events based on peer review, the results presented here emphasize that adverse events are not only prevalent, but are associated with serious harm and even death. These results also highlight the importance of risk adjustment and multivariate models in the study of adverse events.

  8. URBAN WATERSHED STUDIES IN SOUTHERN BRAZIL

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    Cristiano Poleto

    2007-12-01

    Full Text Available One of the greatest problems observed in Brazilian urban watersheds are concerned to the amount of solid residues, domestic sewerage and sediments that are disposed in the rivers and streams that drain those areas. This project aims to present these problems through a study of case taken in an urban watershed in Porto Alegre city, Southern Brazil. For this study, different procedures were used, such as field surveys, interviews with the inhabitants, satellite images, sediment samples, flow measures and morphology assessment of part of the local fluvial system to check the degree of instability of the channel. In 2005, it was verified that 42.57% of the watershed was impermeable, considering the paved streets, the residential and commercial buildings and stone pavements. As there was no sewer treatment, most of this sewerage was directly disposed into the stream and the TOC has reached 20% (m/m. Moreover, the occupation of riparian areas, a great amount of soil exposed in the watershed, the nonpaved streets and a great volume of solid residues were causing the instability in the channel, silting the stream bed. The metals (Zn, Pb and Cr selected for this study are most frequently found in high concentrations in urban areas. The results suggest the occurrence of a high enrichment of the fluvial sediment by these metals. The concentrations of these elements vary temporally during storms due to the input of impervious area runoff containing high concentration of elements associated to vehicular traffic and other anthropogenic activities. Then, it is possible to conclude that the contamination of the urban watershed is reflected in the results obtained in the fluvial suspended sediments.

  9. URBAN WATERSHED STUDIES IN SOUTHERN BRAZIL

    Directory of Open Access Journals (Sweden)

    Cristiano Poleto

    2007-01-01

    Full Text Available One of the greatest problems observed in Brazilian urban watersheds are concerned to the amount of solid residues, domestic sewerage and sediments that are disposed in the rivers and streams that drain those areas. This project aims to present these problems through a study of case taken in an urban watershed in Porto Alegre city, Southern Brazil. For this study, different procedures were used, such as field surveys, interviews with the inhabitants, satellite images, sediment samples, flow measures and morphology assessment of part of the local fluvial system to check the degree of instability of the channel. In 2005, it was verified that 42.57% of the watershed was impermeable, considering the paved streets, the residential and commercial buildings and stone pavements. As there was no sewer treatment, most of this sewerage was directly disposed into the stream and the TOC has reached 20% (m/m. Moreover, the occupation of riparian areas, a great amount of soil exposed in the watershed, the nonpaved streets and a great volume of solid residues were causing the instability in the channel, silting the stream bed. The metals (Zn, Pb and Cr selected for this study are most frequently found in high concentrations in urban areas. The results suggest the occurrence of a high enrichment of the fluvial sediment by these metals. The concentrations of these elements vary temporally during storms due to the input of impervious area runoff containing high concentration of elements associated to vehicular traffic and other anthropogenic activities. Then, it is possible to conclude that the contamination of the urban watershed is reflected in the results obtained in the fluvial suspended sediments.

  10. Public bureaucracy and ruling classes in Brazil

    Directory of Open Access Journals (Sweden)

    Luiz Carlos Bresser-Pereira

    2007-01-01

    Full Text Available Brazil underwent industrialization and major economic development during the period that spanned 1930 to 1980 This is the period of strategic national development initiated by Getulio Vargas and taken up again after the crisis of the 1960s by the military regime that was in power. Throughout the entire period, public bureaucracy played a key role, always in consort with the industrial bourgeoisie. These two classes emerged as actors in political life as of the 1930s and - together with the workers who were minor partners - promoted the Brazilian industrial revolution. During the 1960s the radicalization of the Left and the right-wing alarmism which were both to a large extent stimulated by the Cuban revolution led to a military coup in which the bourgeoisie and the military joined interests with the United States. Nonetheless, both the bourgeoisie and public bureaucracy returned to a nationalist and developmentalist policy during the years that followed. Yet the major foreign debt crisis that took place during the 1980s led to the breaking apart of these alliances, and over the course of the decade, to the surrender to neo-liberalism coming from the North. At that moment, a disoriented public bureaucracy attempted to defend its own corporate interests. As of the 1990s, however, the sector involved itself in the State Administrative Reform of 1995; furthermore, neoliberalism, which then became the dominant current, went on to lose its hegemony over the following decade due to failure in promoting economic development. These two facts work, on the one hand, to re-establish new republican perspectives for public bureaucracy and, on the other, suggest that the renewed alliance of public bureaucracy and industrial bourgeoisie may again be turning into the nation's route to re-establishing economic development.

  11. Wind power in Brazil : a sustainable energy

    Energy Technology Data Exchange (ETDEWEB)

    Moreira da Silva, R. [Federal Univ. of Paraiba, Joao Pessoa, Paraiba (Brazil); KTH Royal Inst. of Technology, KTH Royal Inst. of Technology (Sweden); Queirs, J.R. [Federal Univ. of Paraiba, Joao Pessoa, Paraiba (Brazil)

    2009-07-01

    Energy sources can be categorized as either renewable or non-renewable sources. Non-renewable sources, such fossil fuels provide energy services with emissions of both air pollutants and greenhouse gases and are not seen as environmentally friendly. Rising fossil fuel prices, environmental degradation and the limited availability of the main sources has led to the world's interest in renewable energy sources such as solar, wind, biomass and geothermal. Wind energy is considered to be environmentally sustainable. It is one of the fastest growing energy systems in the world. Towards the end of the 20th century, worldwide wind capacity was doubling about every 3 years. This paper discussed wind power as a renewable energy source. The advantages and disadvantages of its use in Brazil were discussed. The paper also discussed prospects for its growth in use and experiences with wind power from the following countries: Germany; Spain, Italy; Denmark; Turkey; United States; Canada; China; India; Pakistan; Tunisia; Algeria; Nigeria; Australia; New Zealand; and Ethiopia. The benefits of using wind power include employment opportunities and income growth; environmental benefits; possible combination with other energy sources; and energy decentralization. The need for appropriate policies was also discussed. It was concluded that despite many difficulties today, the Brazilian government has begun to take more consistent actions to promote the development of the promising wind sector. There are many unresolved regulatory issues and problems with supply chain and economic leverage that are limiting a greater use of wind energy in the country. 34 refs., 1 fig.

  12. Catastrophic expenditure on medicines in Brazil

    Science.gov (United States)

    Luiza, Vera Lucia; Tavares, Noemia Urruth Leão; Oliveira, Maria Auxiliadora; Arrais, Paulo Sergio Dourado; Ramos, Luiz Roberto; Pizzol, Tatiane da Silva Dal; Mengue, Sotero Serrate; Farias, Mareni Rocha; Bertoldi, Andréa Dâmaso

    2016-01-01

    ABSTRACT OBJECTIVE To describe the magnitude of the expenditure on medicines in Brazil according to region, household size and composition in terms of residents in a situation of dependency. METHODS Population-based data from the national household survey were used, with probabilistic sample, applied between September 2013 and February 2014 in urban households. The expenditure on medicines was the main outcome of interest. The prevalence and confidence intervals (95%CI) of the outcomes were stratified according to socioeconomic classification and calculated according to the region, the number of residents dependent on income, the presence of children under five years and residents in a situation of dependency by age. RESULTS In about one of every 17 households (5.3%) catastrophic health expenditure was reported and, in 3.2%, the medicines were reported as one of the items responsible for this situation. The presence of three or more residents (3.6%) and resident in a situation of dependency (3.6%) were the ones that most reported expenditure on medicines. Southeast was the region with the lowest prevalence of expenditure on medicines. The prevalence of households with catastrophic health expenditure and on medicines in relation to the total of households showed a regressive tendency for economic classes. CONCLUSIONS Catastrophic health expenditure was present in 5.3%, and catastrophic expenditure on medicines in 3.2% of the households. Multi-person households, presence of residents in a situation of economic dependency and belonging to the class D or E had the highest proportion of catastrophic expenditure on medicines. Although the problem is important, permeated by aspects of iniquity, Brazilian policies seem to be protecting families from catastrophic expenditure on health and on medicine. PMID:27982383

  13. Risk factors for ocular toxoplasmosis in Brazil.

    Science.gov (United States)

    Ferreira, A I C; De Mattos, C C Brandão; Frederico, F B; Meira, C S; Almeida, G C; Nakashima, F; Bernardo, C R; Pereira-Chioccola, V L; De Mattos, L C

    2014-01-01

    The aim of this study was to investigate risk factors for ocular toxoplasmosis (OT) in patients who received medical attention at a public health service. Three hundred and forty-nine consecutive patients, treated in the Outpatient Eye Clinic of Hospital de Base, São José do Rio Preto, São Paulo state, Brazil, were enrolled in this study. After an eye examination, enzyme-linked immunosorbent assay (ELISA) was used to determine anti-Toxoplasma gondii antibodies. The results showed that 25.5% of the patients were seronegative and 74.5% were seropositive for IgG anti-T. gondii antibodies; of these 27.3% had OT and 72.7% had other ocular diseases (OOD). The presence of cats or dogs [odds ratio (OR) 2.22, 95% confidence interval (CI) 1.24-3.98, P = 0.009] and consumption of raw or undercooked meat (OR 1.77, 95% CI 1.05-2.98, P = 0.03) were associated with infection but not with the development of OT. Age (OT 48.2 ± 21.2 years vs. OOD: 69.5 ± 14.7 years, P < 0.0001) and the low level of schooling/literacy (OT vs. OOD: OR 0.414, 95% CI 0.2231-0.7692, P = 0.007) were associated with OT. The presence of dogs and cats as well as eating raw/undercooked meat increases the risk of infection, but is not associated with the development of OT.

  14. Paleoparasitologia no Brasil Paleoparasitology in Brazil

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    Marcelo L. C. Gonçalves

    2002-01-01

    Full Text Available Neste artigo faz-se uma revisão sobre o início da paleoparasitologia no Brasil e seu desenvolvimento. A pesquisa de parasitos em vestígios humanos pode trazer informações sobre questões tais como a origem e antiguidade da relação parasito-hospedeiro, distribuição de parasitos através do tempo e migrações humanas pré-históricas. O estudo de seqüências de ADN de parasitos encontrados em tecidos mumificados e coprólitos pode ser uma importante fonte de informação para filogenia e co-evolução parasito-hospedeiro. A análise de ácidos nucléicos de parasitos encontrados em material arqueológico (paleoparasitologia molecular abre novas perspectivas para estudos sobre evolução ao nível molecular.We review the beggining of paleoparasitology and its development in Brazil. The search of parasites in ancient human remains can throw light on such questions as origin and antiquity of parasite-host relationship, general distribution of parasites through time and prehistoric human migrations. The study of parasite DNA sequences found in mummified tissues and coprolites can be an important source of information for phylogenetic and host-parasite coevolution. The nucleic acid based techniques (molecular paleoparasitology open a new perspective to evolution at a molecular level.

  15. Acute fasciolosis in cattle in southern Brazil

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    Maria de Lourdes Adrien

    2013-06-01

    Full Text Available This study describes the epidemiological and pathological aspects of an outbreak of acute fasciolosis in cattle in southern Brazil. Fifteen out of 70 three-year-old pregnant cows lost weight in the 30-40 days prior to calving. Clinical signs included diarrhea, weakness, mild anemia and jaundice. Dark yellow fluid in the abdominal cavity was observed at necropsy. Fibrin and clotted blood were adhered to the pericardium and lung, primarily in the diaphragmatic lobes. The liver was enlarged, and the capsular surface was irregular with clear areas and petechiae. At the cut surface, the liver was irregular, firm and edematous, and several hemorrhagic channels could be observed. Areas of fibrosis through the parenchyma and whitish thrombi occluding the great vessels were also observed. The livers of 10 cows that not died were condemned at slaughter for lesions of fasciolosis similar to those observed at necropsy. Microscopically, the liver showed areas of coagulation necrosis, extensive hemorrhages in the streaks or foci and disruption of the parenchyma with neutrophil and eosinophil infiltration. Fibrosis and bile duct proliferation were also observed. Immature Fasciola hepatica flukes were observed in the parenchyma surrounded by degenerated hepatocytes, neutrophils, eosinophils, and hemorrhages. The outbreak occurred on a farm located in an area endemic for fasciolosis, although the acute form of the disease is not common in cattle in this region. It is likely that the cows were infected by F. hepatica metacercariae released in the late fall or early spring in the rice stubble where the herd was grazing prior to calving. Although mortality due to fasciolosis in cattle is infrequent, outbreaks can occur and treatments that are effective in both the immature and adult forms of the parasite should be administered to prevent economic losses.

  16. Emergent arboviruses in Brazil Arboviroses emergentes no Brasil

    OpenAIRE

    Luiz Tadeu de Moraes Figueiredo

    2007-01-01

    Brazil is a large tropical country (8,514,215km²) with 185,360,000 inhabitants. More than one third of its territory is covered by tropical forests or other natural ecosystems. These provide ideal conditions for the existence of many arboviruses, which are maintained in a large variety of zoonotic cycles. The risk that new arboviruses might emerge in Brazil is related to the existence of large, densely populated cities that are infested by mosquitoes such as Culex and the highly anthropophili...

  17. Type 2 diabetes in Brazil: epidemiology and management

    OpenAIRE

    Almeida-Pititto B; Dias ML; Moraes ACF; Ferreira SRG; Franco DR; Eliaschewitz FG

    2015-01-01

    Bianca de Almeida-Pititto,1 Monike Lourenço Dias,2 Ana Carolina Franco de Moraes,3 Sandra RG Ferreira,3 Denise Reis Franco,4 Freddy Goldberg Eliaschewitz4,5 1Department of Preventive Medicine, Federal University of São Paulo, São Paulo, Brazil; 2Department of Endocrinology, Federal University of Goiás, Goiânia, Goiás, Brazil; 3Department of Epidemiology, School of Public Health, University of São Paulo, São...

  18. First report of autochthonous transmission of Zika virus in Brazil

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    Camila Zanluca

    2015-06-01

    Full Text Available In the early 2015, several cases of patients presenting symptoms of mild fever, rash, conjunctivitis and arthralgia were reported in the northeastern Brazil. Although all patients lived in a dengue endemic area, molecular and serological diagnosis for dengue resulted negative. Chikungunya virus infection was also discarded. Subsequently, Zika virus (ZIKV was detected by reverse transcription-polymerase chain reaction from the sera of eight patients and the result was confirmed by DNA sequencing. Phylogenetic analysis suggests that the ZIKV identified belongs to the Asian clade. This is the first report of ZIKV infection in Brazil.

  19. Activity levels of gamma-emitters in Brazil nuts

    Energy Technology Data Exchange (ETDEWEB)

    Armelin, M. J.A.; Maihara, V.A.; Silva, P.S.C.; Saiki, M., E-mail: marmelin@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil). Centro do Reator de Pesquisas. Laboratorio de Analise por Ativacao Neutronica; Cozzolino, S.M.F. [Universidade de Sao Paulo (USP), Sao Paulo, SP (Brazil). Faculdade de Ciencias Farmaceuticas

    2016-11-01

    Activity concentrations of the radionuclides {sup 137}Cs, {sup 40}K, {sup 226}Ra and {sup 228}Ra were determined in Brazil nuts acquired at points of sale between 2010 and 2013. Results indicated that the estimated annual effective radioactive dose due to ingestion of Brazil nuts is 27% of the annual dose limit of 1 mSv y{sup -1} for public exposure, according to the International Commission on Radiological Protection (ICRP). To estimate this dose the highest activity concentration obtained for each radionuclide was considered, assuming an annual consumption of 1.5 kg y{sup -1} per individual. (author)

  20. Measuring inflation persistence in Brazil using a multivariate model

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    Vicente da Gama Machado

    2014-06-01

    Full Text Available We estimate inflation persistence in Brazil in a multivariate framework of unobserved components, accounting for the following sources affecting inflation persistence: Deviations of expectations from the actual policy target; persistence of the factors driving inflation; and the usual intrinsic measure of persistence, evaluated through lagged inflation terms. Data on inflation, output and interest rates are decomposed into unobserved components. To simplify the estimation of a great number of unknown variables, we employ Bayesian analysis. Our results indicate that expectations-based persistence matters considerably for inflation persistence in Brazil.

  1. Miconia papillosperma (Melastomataceae, Miconieae): a new species from Amazonas, Brazil.

    Science.gov (United States)

    Michelangeli, Fabián A; Goldenberg, Renato

    2016-01-01

    Miconia papillosperma, a new species of Melastomataceae shrubs from Northern Brazil is described and illustrated. This new species is characterized by elliptic lanceolate leaves with the only pair of secondary veins running close to the margin. It is also unique in having seeds with a papillose testa, a character until now unknown in the Miconieae. The description of this new species from a relatively well collected area near a major road north of Manaus, Amazonas, Brazil, is further evidence of our lack of knowledge on plants in many Neotropical areas.

  2. Brazil: U.S. Strategy for the Year 2000

    Science.gov (United States)

    1989-03-21

    and Brazil’s SID computer firm. I0 Another issue concerns Brazil’s space program and the scheduled launch of the Sonda IV missile. The launch...American Weekly Report (London), 10 November 1988, p. 4. 11. " Sonda IV’s Launch is Called Off,’ Latin American Weekly Report (London), 8 December 1988...p. 14. 48 32. " Sonda IV’s Launch is Called Off." Latin American Weekly Report (London), 8 December 1988, p. 5. 33. Stepan, Alfred. Rethinking Military

  3. THE EARLY FORMATIONS OF THE COMMUNIST PROGRAM TO BRAZIL

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    João Quartim de Moraes

    2010-08-01

    Full Text Available For Marx & Engels, communism is not a project, but a real movement of which the presupposition is the development of capitalism. The Brazilian Communist Party (PCB, as far back as 1924, offered an original contribution to the analysis of Brazilian society. The meeting of positivism and communism in the late 1920´s is the most advanced expression of Brazil´s leftist political culture. In the following decades, most communist intellectuals were leading figures in the elaboration of the national-democratic program of Brazil´s social revolution.

  4. Jejunal hemorrhage syndrome in a Zebu cow in Brazil

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    Prhiscylla Sadanã Pires

    2015-08-01

    Full Text Available Clostridium perfringens type A has been incriminated as the etiologic agent in jejunal hemorrhage syndrome (JHS, which is a disease that affects dairy cattle. Although this microorganism is considered an important enteropathogen the pathogenesis of JHS is still not clear, and there have been no reports of its occurrence in Brazil so far. The aim of this study was to describe the occurrence of JHS by infection with a C. perfringens type A strain carrying the beta-2 toxin gene in a zebu cow in Brazil, for the first time.

  5. A harder edge: reframing Brazil's power relation with Africa

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    Pedro Seabra

    2014-01-01

    Full Text Available Brazil's rapprochement with Africa during the last decade has been mostly explained as an attempt to improve political dialogue, raise economic interactions, and provide technical cooperation assistance. This article, however, argues that such framework does not sufficiently account for the use of Brazilian material resources in order to attain harder strategic goals towards the continent. By focusing on defense cooperation ties, it highlights an important niche in South-South relations that has also grown exponentially, with important consequences on how Brazil exerts power across the Atlantic.

  6. First report of autochthonous transmission of Zika virus in Brazil.

    Science.gov (United States)

    Zanluca, Camila; Melo, Vanessa Campos Andrade de; Mosimann, Ana Luiza Pamplona; Santos, Glauco Igor Viana Dos; Santos, Claudia Nunes Duarte Dos; Luz, Kleber

    2015-06-01

    In the early 2015, several cases of patients presenting symptoms of mild fever, rash, conjunctivitis and arthralgia were reported in the northeastern Brazil. Although all patients lived in a dengue endemic area, molecular and serological diagnosis for dengue resulted negative. Chikungunya virus infection was also discarded. Subsequently, Zika virus (ZIKV) was detected by reverse transcription-polymerase chain reaction from the sera of eight patients and the result was confirmed by DNA sequencing. Phylogenetic analysis suggests that the ZIKV identified belongs to the Asian clade. This is the first report of ZIKV infection in Brazil.

  7. Cancer research in Brazil - stuck in second gear?

    Directory of Open Access Journals (Sweden)

    A.P. Lepique

    2015-02-01

    Full Text Available This article describes the main issues regarding clinical cancer research in Brazil, including both the opportunities and the hurdles. Scientists and clinicians in this field had the opportunity to talk to regulatory agencies and to the Health Ministry representative at a meeting held in the State of Rio de Janeiro, Brazil, in April 2014. Our conclusions are that we do indeed have opportunities; however, we need to move forward regarding partnerships between academia and industry, increase the availability of funding, and provide easier navigation through the regulatory processes.

  8. National report of Brazil: nuclear safety convention - September 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-09-01

    This National Report was prepared by a group composed of representatives of the various Brazilian organizations with responsibilities in the field of nuclear safety, aiming the fulfilling the Convention of Nuclear Energy obligations. The Report contains a description of the Brazilian policy and programme on the safety of nuclear installations, and an article by article description of the measures Brazil is undertaking in order to implement the obligations described in the Convention. The last chapter describes plans and future activities to further enhance the safety of nuclear installations in Brazil.

  9. A New capitalism in Brazil? Fusions & acquisitions on Lula government

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    José Carlos Martines Belieiro Junior

    2014-06-01

    Full Text Available This paper aims analyze the phenomenon of fusions and acquisitions of companies in Brazil during the government of ex-president Luis Ignacio Lula da Silva, from 2003 to 2010. The adopted point of view is the one of relations between the State an d the economy trying to investigate what the new role of the private capital in the contemporary Brazil. The basic hypothesis that guide this work is to explain the fusions and acquisitions in a broader context of State support to the process of fusions and acquisitions as a new way of global insertion of Brazilian capitalism in a moment of international competitiveness.

  10. 78 FR 15346 - Secretarial Infrastructure Business Development Mission to Brazil, Colombia and Panama; May 12-18...

    Science.gov (United States)

    2013-03-11

    ... Appointments. Amcham or other Luncheon Speech. Panama City, Panama Commercial Opportunity Overview. Panama.... Commercial Setting Brazil The Federative Republic of Brazil is Latin America's biggest economy and is the..., Business development mission Orientation. Brazil. U.S Government Trade Finance Briefing. Brazil...

  11. Ten years of unitization in Brazil; Dez anos de unitizacoes no Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Bonolo, Daniel Dellamora; Almeida, Mateus Passeri de [Petroleo Brasileiro S.A. (PETROBRAS), Rio de Janeiro, RJ (Brazil)

    2012-07-01

    The unitization concept, as used by the oil industry, was established in Brazil through Art 27 of the Law 9.478/97, also known as the Petroleum Law, and the first process was initiated in 2002. Within these 10 years, four processes were started and finalized, approved by ANP. These processes were developed in a maturing regulatory environment, which was improved in 2010. This article deals with the peculiarities of these processes, putting in context the regulatory framework and doubts at the time. We also verse about the regulatory scene after 2010, pointing out the main enhancements made. It is concluded that, although essential, an elaborated regulation is not the only important factor for the success of a unitization agreement, but also the agreement between parties, which has been encouraged by ANP.(author)

  12. Payroll tax reduction in Brazil : Effects on employment and wages

    NARCIS (Netherlands)

    C.R. Scherer (Clóvis)

    2015-01-01

    textabstractThis paper evaluates the effects of the elimination of a payroll tax on employment and wages in four manufacturing and service sectors in Brazil in early 2012. This tax, which accounted for 20 percent of the wage bill, was levied on employers and financed social security programmes. This

  13. Economic losses due to bovine brucellosis in Brazil

    Directory of Open Access Journals (Sweden)

    Renato L. Santos

    2013-06-01

    Full Text Available Brucellosis is an important zoonosis of worldwide distribution. Reliable epidemiologic brucellosis data covering approximately 90% of the cattle population in Brazil have been recently published. Therefore, considering the scarcity of information regarding the economic impact of bovine brucellosis in Brazil, the goal of this study was to estimate economic impact of brucellosis on the Brazilian cattle industry. Several parameters including abortion and perinatal mortality rates, temporary infertility, replacement costs, mortality, veterinary costs, milk and meat losses were considered in the model. Bovine brucellosis in Brazil results in an estimated loss of R$ 420,12 or R$ 226,47 for each individual dairy or beef infected female above 24 months of age, respectively. The total estimated losses in Brazil attributed to bovine brucellosis were estimated to be approximately R$ 892 million (equivalent to about 448 million American dollars. Every 1% increase or decrease in prevalence is expected to increase or decrease the economic burden of brucellosis in approximately 155 million Reais.

  14. Three Essays on the Labor Market and Education in Brazil

    Science.gov (United States)

    Botelho, Fernando Balbino

    2011-01-01

    The first chapter studies the effects of a teacher performance bonus program implemented in Brazil in 2008. The program covered all schools directly managed by the State of Sao Paulo government, and was based on a standardized test run by the state education authority. I use high-school exit exams organized by the federal government (ENEM) to…

  15. Brazil, the United States, and the Missile Technology Control Regime

    Science.gov (United States)

    1990-03-19

    Pursues Dream in Space," Washington Post, 13 December 1984, lf, 4f. According to Defense News, "Brazil’s Andrade Gutierrez Quimica produces ammonium...Defense Intelligence Agency JSI-IC Washington, DC 22340 Gary Wynia Carleton College Northfield, MN 55057

  16. Did Liberalization Start A Retail Revolution In Brazil?

    NARCIS (Netherlands)

    Vries, Gaaitzen J. de

    2008-01-01

    In the 1990s, Brazil opened up its retail sector to foreign direct investment. It was expected that the entry and market expansion of retail chains would spur the development of a sector long characterized by small family-run stores. However, the effects on growth have been disappointing. Our result

  17. Updates on the genus Euphorbia (Euphorbiaceae) in Santa Catarina, Brazil

    DEFF Research Database (Denmark)

    Hassemer, Gustavo; Marques Da Silva, Otávio Luis; Funez, Luís Adriano

    2017-01-01

    This contribution presents updates to the knowledge of the species of Euphorbia that occur in Santa Catarina state, southern Brazil. More specifically, we here typify the names E. cyathophora, E. hirtella, E. paranensis and E. stenophylla, and present the first records of E. cyathophora, E. grami...

  18. INVESTIGATION OF SERUM MICROCYSTIN CONCENTRATIONS AMONG DIALYSIS PATIENTS, BRAZIL, 1996

    Science.gov (United States)

    Investigation of Serum Microcystin Concentrations Among Dialysis Patients, Brazil, 1996Elizabeth D. Hilborn 1, Wayne W. Carmichael 2, Sandra M.F.O. Azevedo 31- USEPA/ORD/NHEERL, Research Triangle Park, NC2- Wright State University, Dayton, OH3- Federal Univers...

  19. Measuring Cognitive Achievement Gaps and Inequalities: The Case of Brazil

    Science.gov (United States)

    Soares, Jose Francisco

    2006-01-01

    This paper introduces a new measure of educational inequalities based on cognitive achievement data, and uses it to examine achievement inequalities in mathematics between groups of students enrolled in basic education in Brazil. The groups of students are defined by their race, sex, socioeconomic status (SES), and region of residence. The…

  20. "Soft Power", Educational Governance and Political Consensus in Brazil

    Science.gov (United States)

    Rambla, Xavier

    2012-01-01

    This article analyses the "soft power" that the Federal Government of Brazil has gained by designing and implementing a very ambitious Plan for the Development of Education. It draws on fieldwork carried out in the country in 2009 and 2010 in order to conduct a discourse analysis of the strategy deployed by the key political agents. The results…

  1. The United States and Brazil: Opening a New Dialogue,

    Science.gov (United States)

    1984-01-01

    pro- vided for the initial reforms, none of the changes were in effect until after he departed the presidency. President Geisel wanted to be succeeded...Listening System in the South Atlantic]," 0 Globo, 16 May 1982, p. 10. 15. "Brasil Desiste De Construir Base Naval Na Ilha De Trinidade *[Brazil Ceases

  2. European Direct Investment in Brazil, 1860 to the Present

    Directory of Open Access Journals (Sweden)

    Âmara Fuccio de Fraga e Silva

    2010-09-01

    Full Text Available

    European direct investment in Brazil dates back to the discovery of the country and has been since then either hegemonic or more important than a superficial observation can grasp, as this work aims at showing. During the 20

    th century, the United States has replaced Britain as the world’s economic superpower and the largest direct investor. US dominance in the world economy and geographical proximity to Brazil would suggest that US investments were by far the largest in the country during that century. Furthermore, as Japan had become the second largest economy in the world in the 1980s, we would expect that this would be reflected in the data of the largest multinationals in Brazil. However, as our investigation suggests, Western European direct investment has been as large (and in many occasions even larger as that of the USA and Japanese firms have never had a prominent presence among the largest firms in Brazil, at least until the late 1990s.

  3. European Direct Investment in Brazil, 1860 to the Present

    Directory of Open Access Journals (Sweden)

    Sérgio de Oliveira Birchal

    2010-09-01

    Full Text Available European direct investment in Brazil dates back to the discovery of the country and has been since then either hegemonic or more important than a superficial observation can grasp, as this work aims at showing. During the 20th century, the United States has replaced Britain as the world’s economic superpower and the largest direct investor. US dominance in the world economy and geographical proximity to Brazil would suggest that US investments were by far the largest in the country during that century. Furthermore, as Japan had become the second largest economy in the world in the 1980s, we would expect that this would be reflected in the data of the largest multinationals in Brazil. However, as our investigation suggests, Western European direct investment has been as large (and in many occasions even larger as that of the USA and Japanese firms have never had a prominent presence among the largest firms in Brazil, at least until the late 1990s.

  4. Rabies in the insectivorous bat Tadarida brasiliensis in Southeastern Brazil

    Directory of Open Access Journals (Sweden)

    Uieda Wilson

    1998-01-01

    Full Text Available This is the first recorded case of rabies in the insectivorous bat Tadarida brasiliensis in the State of S. Paulo, Southeastern Brazil. The infected bat was found in the afternoon while hanging on the internal wall of an urban building. This observation reinforces the notion as to the caution one must exercise regarding bats found in unusual situations.

  5. LITERARY CLINIC: GLOBAL LITERATURES AND ENGLISH TEACHER EDUCATION IN BRAZIL

    Directory of Open Access Journals (Sweden)

    Malia Spofford XAVIER

    2014-06-01

    Full Text Available Departing from the polyvalent metaphor of the “clinic,” this article discusses the results of the first phase of an English teacher education project, part of the Teaching Initiation Scholarship Program (PIBID/CAPES at a federal university in Brazil. Given the effects of globalization on language teaching and learning, the English teacher certification program needs to incorporate critical and intercultural perspectives in the reflexive dimension of the teacher education curriculum. One possible approach is the study of global English, or Anglophone, literatures utilizing a cultural studies and postcolonial theoretical framework. In accordance with recent observations by Festino (2011 and Lourenço (2011 about the importance of literatures in English for education in Brazil, I propose a multimodal and critical approach to the study of Anglophone literatures connected to teaching in basic education that also stimulates teacher reflection. This approach also seeks to illuminatethe role of English in Brazil and clarify the notion of content in English classes, as it relates to narrative. My analysis involves a triptych of literary genres from different countries: Kendal Hippolyte (poetry – St. Lucia, Chinua Achebe (novel – Nigeria, and Jhumpa Lahiri (short story – United States and India. Some strategies for transposing literary studies to the middle school English classroom in Brazil are also outlined.

  6. Daytime School Guided Visits to an Astronomical Observatory in Brazil

    Science.gov (United States)

    Colombo, Pedro Donizete, Jr.; Silva, Cibelle Celestino; Aroca, Silvia Calbo

    2010-01-01

    This article analyzes the activity "Daytime School Guided Visits" at an astronomical observatory in Brazil with pupils from primary school. The adopted research methodology relied on questionnaire applications and semistructured interviews. The objectives were to identify the influences of the visits on learning of astronomical concepts…

  7. Public Policy and Teacher Education in Brazil after 1990

    Science.gov (United States)

    Guimaraes, Selva

    2012-01-01

    The present research investigates public policy concerning teacher education in Brazil. It is a critical rereading of historical documents focusing on laws, legal documents, projects, institutional and public policies and teaching careers developed by the Brazilian state, as well as social and scientific organisations. Emphasis is given to current…

  8. 2-D Model Test Study of the Suape Breakwater, Brazil

    DEFF Research Database (Denmark)

    Andersen, Thomas Lykke; Burcharth, Hans F.; Sopavicius, A.;

    This report deals with a two-dimensional model test study of the extension of the breakwater in Suape, Brazil. One cross-section was tested for stability and overtopping in various sea conditions. The length scale used for the model tests was 1:35. Unless otherwise specified all values given...

  9. Conidiobolus macrosporus (Entomophthorales), a mosquito pathogen in Central Brazil

    Science.gov (United States)

    A new fungal pathogen of Culicinae (Diptera: Culicidae) adults, Conidiobolus macrosporus (Ancylistaceae), was detected and isolated during a survey of mosquito pathogens close to the city of Aruanã, Goiás State of Brazil, in December 2014. The morphological characteristics of C. macrosporus are pres...

  10. Seroprevalence of Toxoplasma gondii in seabirds from Abrolhos Archipelago, Brazil

    Science.gov (United States)

    Toxoplasma gondii is a coccidian parasite that infects almost all warm-blooded animals, including birds. Abrolhos is an archipelago of five islands, located in the Atlantic Ocean, 56 nautical kilometers from the south coast of the state of Bahia, northeastern Brazil. Part of this archipelago is a Na...

  11. Orbivirus infections in collared peccaries (Tayassu tajacu) in southeastern Brazil.

    Science.gov (United States)

    Gerber, Priscilla F; Galinari, Grazielle C F; Cortez, Adriana; Paula, Cátia D; Lobato, Zélia I P; Heinemann, Marcos B

    2012-01-01

    We surveyed 49 free-living collared peccaries (Pecari tajacu) in Brazil for antibodies against bluetongue virus (BTV) and porcine circovirus 2 (PCV2). Antibodies against BTV were detected in 19/49 (39%) samples. All samples were negative for PCV2. The importance of antibodies to BTV in collared peccaries remains to be determined.

  12. Science Teacher Education in Brazil: 1950-2000

    Science.gov (United States)

    Villani, Alberto; de Almeida Pacca, Jesuina Lopes; de Freitas, Denise

    2009-01-01

    This paper analyzes the most significant events occurring in Brazil's educational, social and political areas over the last half century, viewed against a background of relevant worldwide events. The hypothesis presented here is that the relations between the country's educational policies, the demands of the various segments of academia, and the…

  13. Serratia marcescens harboring SME-4 in Brazil: A silent threat.

    Science.gov (United States)

    Cayô, Rodrigo; Leme, Rodrigo Cuiabano Paes; Streling, Ana Paula; Matos, Adriana Pereira; Nodari, Carolina Silva; Chaves, Jessica Reis Esteves; Brandão, Jorge Luiz Ferreira; de Almeida, Maíra Fernandes; Carrareto, Valério; de Castro Pereira, Marco Aurélio; de Almeida, Jean Pierre Aquino; Ferreira, Demian Candido; Gales, Ana Cristina

    2017-04-01

    The intrinsic polymyxin resistance displayed by Serratia marcescens makes the acquisition of carbapenemase encoding genes a worrisome event. This study report a SME-4-producing S. marcescens isolate causing septic shock in Brazil. The insertion of novel resistance determinants and their consequent spread in our territory is noteworthy.

  14. Brazil: Education in an Expanding Economy. Bulletin, 1959, No. 13

    Science.gov (United States)

    Faust, Augustus F.

    1959-01-01

    Studies on education in other countries have long been a responsibility of the Office of Education. This present study is another contribution in the series. It is based on background information acquired by the author during 4 visits totaling 3 years of residence in Brazil, with a 1957 visit to obtain current first-hand data. The purpose of the…

  15. A regional-scale Ocean Health Index for Brazil.

    Science.gov (United States)

    Elfes, Cristiane T; Longo, Catherine; Halpern, Benjamin S; Hardy, Darren; Scarborough, Courtney; Best, Benjamin D; Pinheiro, Tiago; Dutra, Guilherme F

    2014-01-01

    Brazil has one of the largest and fastest growing economies and one of the largest coastlines in the world, making human use and enjoyment of coastal and marine resources of fundamental importance to the country. Integrated assessments of ocean health are needed to understand the condition of a range of benefits that humans derive from marine systems and to evaluate where attention should be focused to improve the health of these systems. Here we describe the first such assessment for Brazil at both national and state levels. We applied the Ocean Health Index framework, which evaluates ten public goals for healthy oceans. Despite refinements of input data and model formulations, the national score of 60 (out of 100) was highly congruent with the previous global assessment for Brazil of 62. Variability in scores among coastal states was most striking for goals related to mariculture, protected areas, tourism, and clean waters. Extractive goals, including Food Provision, received low scores relative to habitat-related goals, such as Biodiversity. This study demonstrates the applicability of the Ocean Health Index at a regional scale, and its usefulness in highlighting existing data and knowledge gaps and identifying key policy and management recommendations. To improve Brazil's ocean health, this study suggests that future actions should focus on: enhancing fisheries management, expanding marine protected areas, and monitoring coastal habitats.

  16. Academic and Diversity Consequences of Affirmative Action in Brazil

    Science.gov (United States)

    Childs, Porsha; Stromquist, Nelly P.

    2015-01-01

    Since 2001, Brazilian universities have been implementing affirmative-action policies to correct the racial, social and ethnic disparities in university admissions. An examination of the social-inclusion policies at three public universities in Brazil--the University of Brasilia, the Federal University of Bahia and the State University of…

  17. Electricity end-uses in the residential sector of Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Ghisi, Enedir; Gosch, Samuel; Lamberts, Roberto [Federal University of Santa Catarina, Florianopolis (Brazil). Laboratory of Energy Efficiency in Buildings, Department of Civil Engineering

    2007-08-15

    The residential energy consumption has been studied in many countries as it usually accounts for a large percentage of the total energy consumption. Energy end-uses have also been a matter of concern as they can assist energy system planning. The objective of this paper is to assess the actual scenario of electricity consumption and estimate electricity end-uses in the residential sector of Brazil for different bioclimatic zones. The analysis is based on a survey performed by 17 energy utilities enclosing a total of 17,643 houses or flats over 12 states in Brazil. The survey was performed to obtain electricity consumption data for all household appliances found in houses and flats. The electricity end-uses were estimated by performing weighted averages according to the location of the dwellings in each bioclimatic zone. Results indicate that the largest end-uses are for refrigerator and freezer together, which account for about 38-49% of the electricity consumption in dwellings in Brazil. Air-conditioning and electric shower are the end-uses that are more dependent on the climatic conditions. The main conclusion that can be made from the analysis is that air-conditioning should be a major concern in the residential sector of Brazil in the near future as its ownership is still low, but its electricity consumption is already significant mainly over summer. (author)

  18. [Rotavirus infection in Brazil: epidemiology and challenges for its control].

    Science.gov (United States)

    Linhares, A C

    2000-01-01

    Worldwide, rotaviruses account for 600,000 to 870,000 deaths per year among infants and young children. In Brazil, rotaviruses were first seen in 1976 by scanning electron microscopy of stool samples from diarrheic infants in Belém, Pará. Hospital-based studies have shown that rotaviruses are associated with 12-42% of cases of acute diarrhea. In addition, community-based studies yielded an average of 0.25 rotavirus-related diarrheal episodes per child per year. G types 1 to 4 account for about two-thirds of circulating strains, but the (unusual) P[8],G5 genotype has been claimed to cause over 10% of rotavirus diarrheal episodes. It has been shown that over 70% of children develop rotavirus antibodies by the age of 4-5 years. The tetravalent rhesus-human rotavirus vaccine (RRV-TV) conferred 35% protection according to a two-year follow-up study in Belém, Pará, Brazil, but reached an efficacy of 60% during the first year of life. RRV-TV was also shown to be 75% protective against very severe gastroenteritis in northern Brazil. Vaccination with RRV-TV has been suspended recently in the United States because of the detection of intussusception as a side effect. Therefore, further vaccine trials in Brazil will probably involve rotavirus candidate vaccines other than RRV-TV.

  19. Cyanobacterial dominance in Brazil: Distribution and environmental preferences

    NARCIS (Netherlands)

    Soares, M.C.S.; Miranda, A.; Mello, M.M.; Roland, F.; Lurling, M.

    2013-01-01

    Based on a literature survey, we evaluated the periods of cyanobacterial dominance in Brazil. We hypothesized that variability of environmental forces along the country will promote or facilitate temporal and spatial mosaic in cyanobacterial dominance. The most striking outcomes are related to the d

  20. The parallel materialization of REDD+ implementation discourses in Brazil

    NARCIS (Netherlands)

    Hoff, R. van der; Rajão, R.; Leroy, P.; Boezeman, D.F.

    2015-01-01

    The concept of Reducing Deforestation and Forest Degradation (REDD+) dominates international debates on the role of forests in climate change mitigation, but concrete implementation remains a challenge. In contrast to this general trend, Brazil emerged as a noteworthy exception due to the widespread

  1. When Myth and Reality Meet: Reflections on ESP in Brazil

    Science.gov (United States)

    Celani, Maria Antonieta Alba

    2008-01-01

    Within the broad background of English language education in Brazil, this paper intends to discuss two questions. Firstly, where and why a common misconception about ESP being identified as the teaching of reading only originated, and secondly, given the social role of English in the Brazilian context, whether an ESP approach can be seen as more…

  2. New species of Lessingianthus (Asteraceae, Vernonieae) from Brazil and Paraguay

    NARCIS (Netherlands)

    Dematteis, M.; Angulo, M.B.

    2012-01-01

    Two new species of the genus Lessingianthus (Vernonieae, Asteraceae) from Brazil and Paraguay are described and illustrated. Lessingianthus cipoensis is characterized by the presence of solitary heads disposed in short branches and ovate to elliptical leaves. It has a certain resemblance to L. vesti

  3. Energy efficiency and renewable energy systems in Portugal and Brazil

    DEFF Research Database (Denmark)

    Østergaard, Poul Alberg; Soares, Isabel; Ferreira, Paula

    2014-01-01

    This article presents a review of the energy situation in Brazil and Portugal; two countries which are both characterised by high utilisation of renewable energy sources though with differences between them. The article also introduces contemporary energy research conducted on the two countries...

  4. Is Rhodnius prolixus (Triatominae) invading houses in central Brazil?

    Science.gov (United States)

    Gurgel-Gonçalves, Rodrigo; Abad-Franch, Fernando; Ferreira, Jonatas B C; Santana, Daniella B; Cuba, César A Cuba

    2008-08-01

    Sylvatic triatomines of the genus Rhodnius commonly fly into houses in Latin America, maintaining the risk of Chagas disease transmission in spite of control efforts. In the recent past, adult bugs collected inside houses in central Brazil were identified as R. prolixus, a primary disease vector whose natural geographical range excludes this region. Three nearly sibling species (R. neglectus, R. nasutus, and R. robustus), secondary vectors with limited epidemiological significance, occur naturally south of the Brazilian Amazon. The specific status of Rhodnius specimens found inside houses in central Brazil is therefore an epidemiologically important (and still debated) issue. We used wing and head geometric morphometrics to investigate the taxonomic status of 230 adult specimens representing all four 'R. prolixus group' species (19 populations from palm trees, domiciles, and reference laboratory colonies). Discriminant analyses of shape variation allowed for an almost perfect reclassification of individuals to their putative species. Shape patterning revealed no consistent differences between most specimens collected inside houses in central Brazil and R. neglectus, and showed that R. robustus and R. neglectus occur sympatrically (and fly into houses) in southern Amazonia. Furthermore, all Brazilian specimens clearly differed from our reference R. prolixus population. Using geometric morphometrics, we confidently ascribed individual triatomines to their species within the problematic 'R. prolixus group', illustrating the potential value of this approach in entomological surveillance. Our results strongly support the idea that R. neglectus, and not R. prolixus, is the species invading houses in central Brazil.

  5. Participatory slum upgrading as a disjunctive process in Recife, Brazil

    NARCIS (Netherlands)

    Vries, de Pieter

    2016-01-01

    This article engages with the coproduction of urban space by focusing on a slum upgrading project in Recife, Brazil. It argues that the urban situation is essentially inconsistent, unpredictable and unstable. It documents the history of urban planning in Recife, paying special attention to the co

  6. ABORTION IN BRAZIL: IMPACTS OF ILLEGALITY IN PUBLIC HEALTH

    Directory of Open Access Journals (Sweden)

    Vanessa Cruz Santos

    2013-12-01

    Full Text Available Abortion in Brazil provides public health impacts, mainly due to the high rate of maternal morbidity and mortality, because it most often occurs in an illegal practice and / or unsafe, because of the illegality of abortion in certain situations in the country. Therefore, it is an issue that refers to the various reflections, such as legal, moral, cultural, socio-economic and bioethical. Given the above, the study aims to address about abortion in Brazil and the impacts of illegality in public health. Study of literature review, descriptive and discursive, held in the database SciELO sites and governmental and non-governmental organizations. It was evident that the illegality of abortion in Brazil is harmful to the health of women who resort to unsafe practices and / or illegal, a violation of human rights, the women’s autonomy, as well as providing public health impacts, and sometimes this actually happens because the deficit in quality of care, specifically to sexual and reproductive health, as the actions of Family Planning. It is considered that the way of abortion in Brazil requires modifications, especially with regard to legislative and bioethics conflicts.

  7. Transformative Learning through Music: Case Studies from Brazil

    Science.gov (United States)

    Qi, Nan; Veblen, Kari K.

    2016-01-01

    In this study we consider meaningful, emancipatory, and affirming music-making in Brazil through the lens of five case studies. Each illustrates aspects of transformative theory through music-making in music education as advanced by Mezirow, Freire, and contemporary Brazilian music educators.

  8. China and Brazil: Economic Impacts of a Growing Relationship

    Directory of Open Access Journals (Sweden)

    Rhys Jenkins

    2012-01-01

    Full Text Available The paper analyses the economic impacts of China’s re-emergence on Brazil, looking at both the direct effects of China on Brazil in terms of bilateral trade and investment flows and the indirect effects through increased competition in export markets for manufactured goods and higher world prices for primary commodities. Despite a surge in Chinese FDI in Brazil in 2010, the main driver of bilateral relations is trade. While bilateral trade has grown rapidly, the pattern that has emerged has given rise to concern because Brazil’s exports are concentrated in a small number of primary products while imports from China are almost entirely of manufactured goods that are becoming more technologically sophisticated over time. Brazil has benefitted in the short term from the high prices of primary commodities (partly caused by growing Chinese demand, but has lost export markets to China in manufactures, contributing to the “primarization” of the country’s export basket.

  9. A historical perspective on malaria control in Brazil.

    Science.gov (United States)

    Griffing, Sean Michael; Tauil, Pedro Luiz; Udhayakumar, Venkatachalam; Silva-Flannery, Luciana

    2015-09-01

    Malaria has always been an important public health problem in Brazil. The early history of Brazilian malaria and its control was powered by colonisation by Europeans and the forced relocation of Africans as slaves. Internal migration brought malaria to many regions in Brazil where, given suitable Anopheles mosquito vectors, it thrived. Almost from the start, officials recognised the problem malaria presented to economic development, but early control efforts were hampered by still developing public health control and ignorance of the underlying biology and ecology of malaria. Multiple regional and national malaria control efforts have been attempted with varying success. At present, the Amazon Basin accounts for 99% of Brazil's reported malaria cases with regional increases in incidence often associated with large scale public works or migration. Here, we provide an exhaustive summary of primary literature in English, Spanish and Portuguese regarding Brazilian malaria control. Our goal was not to interpret the history of Brazilian malaria control from a particular political or theoretical perspective, but rather to provide a straightforward, chronological narrative of the events that have transpired in Brazil over the past 200 years and identify common themes.

  10. An Approach to Undergraduate Course Design in Brazil.

    Science.gov (United States)

    Bygate, Martin; And Others

    1985-01-01

    Describes a B.A. degree program in English at the Federal Univesity of Santa Catarina in Brazil. Discusses specific problems relating to the students, the materials, course objectives, timetable, and staffing. Identifies some continuing sources of difficulty and recent developments in the design of the program. (SED)

  11. Curriculum: The Contradictions in Theatre Education in Brazil

    Science.gov (United States)

    Pompeo Nogueira, Marcia; de Medeiros Pereira, Diego

    2016-01-01

    The history of arts education in Brazil is summarised, based on its contradictions. Some aspects of the Brazilian educational system and the National Curriculum Parameters are presented, in order to identify the predominant approach to theatre education. Three situations of the theatre education landscape in the state of Santa Catarina, southern…

  12. Linguistic Policies, Linguistic Planning, and Brazilian Sign Language in Brazil

    Science.gov (United States)

    de Quadros, Ronice Muller

    2012-01-01

    This article explains the consolidation of Brazilian Sign Language in Brazil through a linguistic plan that arose from the Brazilian Sign Language Federal Law 10.436 of April 2002 and the subsequent Federal Decree 5695 of December 2005. Two concrete facts that emerged from this existing language plan are discussed: the implementation of bilingual…

  13. Materno-infantilism, feminism and maternal health policy in Brazil.

    Science.gov (United States)

    Diniz, Simone

    2012-06-01

    In the last days of 2011, President of Brazil Dilma Rousseff issued a provisional measure (or draft law) entitled "National Surveillance and Monitoring Registration System for the Prevention of Maternal Mortality" (MP 557), as part of a new maternal health programme. It was supposed to address the pressing issue of maternal morbidity and mortality in Brazil, but instead it caused an explosive controversy because it used terms such as nascituro (unborn child) and proposed the compulsory registration of every pregnancy. After intense protests by feminist and human rights groups that this law was unconstitutional, violated women's right to privacy and threatened our already limited reproductive rights, the measure was revised in January 2012, omitting "the unborn child" but not the mandatory registration of pregnancy. Unfortunately, neither version of the draft law addresses the two main problems with maternal health in Brazil: the over-medicalisation of childbirth and its adverse effects, and the need for safe, legal abortion. The content of this measure itself reflects the conflictive nature of public policies on reproductive health in Brazil and how they are shaped by close links between different levels of government and political parties, and religious and professional sectors.

  14. Headache research and medical practice in Brazil: an historical overview.

    Science.gov (United States)

    Valença, Marcelo Moraes; da Silva, Amanda Araújo; Bordini, Carlos Alberto

    2015-02-01

    Since the creation of the Brazilian Headache Society in 1978, substantial developments have taken place in both research and clinical practice in the field of headache medicine in Brazil. The Society now has almost 300 members throughout the country, actively working to improve the health of the general population and, in particular, diagnose and treat headache disorders. In addition, in a few large cities, such as São Paulo, Rio de Janeiro, Recife, Ribeirão Preto, Curitiba, and Porto Alegre, headache specialists have come together to promote research projects and increase knowledge in the field through MSc, PhD, and postdoctoral programs. Furthermore, scientific journals have emerged and books have been published to record and disseminate Brazilian scientific production in headache medicine. In this narrative review, we will briefly describe some important aspects of headache medicine in Brazil from prehistoric times to the present day, discuss the origin of headache medicine as a specialty in Brazil, the principal publications dealing with headache disorders, the use of plants and other unconventional forms of treatment used by faith healers, the main training centers, and the research produced to date by Brazilians. In conclusion, in recent years enormous progress has been made in headache medicine in Brazil stimulating us to review and expand our role in an increasingly international scenario.

  15. Psychosexual Characteristics of Male University Students in Brazil.

    Science.gov (United States)

    Cerqueira Leite, Ruth M.; And Others

    1995-01-01

    Male freshmen (n=268) in Brazil responded to a questionnaire concerning aspects of their sexuality from the onset of adolescence, including physical changes and attitudes. The quality of the relationship established with parents and the possibilities for dialogue about sex in the family circle were also surveyed. (JPS)

  16. Psychosexual Characteristics of Female University Students in Brazil.

    Science.gov (United States)

    Leite, Ruth M. C.; And Others

    1994-01-01

    Female college freshmen (n=240) in Brazil answered questions on sexuality. Most revealed satisfactory development in most of aspects surveyed and in their relationships with their parents except where sexual issues were concerned. Most students reported menstrual disturbances, and significant number of sexually active respondents reported…

  17. Semantic categories in the indigenous languages of Brazil

    NARCIS (Netherlands)

    K. Hengeveld; M.L. Braga; E. de Melo Barbosa; J. Silveira Coriolano; J. Jezuino da Costa; M. de Souza Martins; D. Leite de Oliveira; V. Maciel de Oliveira; L. Gomes Pereira; L. Santana; C.L. do Carmo Santos; V. dos Ramos Soares

    2012-01-01

    This article investigates which semantic categories, as defined in Functional Discourse Grammar, formally manifest themselves in a sample of native languages of Brazil, and the extent to which the distribution of these manifestations across categories can be described systematically in terms of impl

  18. The developmental state in Brazil: comparative and historical perspectives

    Directory of Open Access Journals (Sweden)

    BEN ROSS SCHNEIDER

    2015-03-01

    Full Text Available The record of successful developmental states in East Asia and the partial successes of developmental states in Latin America suggest several common preconditions for effective state intervention including a Weberian bureaucracy, monitoring of implementation, reciprocity (subsidies in exchange for performance, and collaborative relations between government and business. Although Brazil failed to develop the high technology manufacturing industry and exports that have fueled sustained growth in East Asia, its developmental state had a number of important, and often neglected, successes, especially in steel, automobiles, mining, ethanol, and aircraft manufacturing. Where Brazil's developmental state was less successful was in promoting sectors like information technology and nuclear energy, as well as overall social and regional equality. In addition, some isolated initiatives by state governments were also effective in promoting particular local segments of industry and agriculture. Comparisons with East Asia, highlight the central role of state enterprises in Brazil that in effect internalized monitoring and reciprocity and bypassed collaboration between business and government (that was overall rarer in Brazil.

  19. The Climate Justice Discourse in Brazil: Potential and Perspective

    OpenAIRE

    Bruno Milanez; Igor F. Fonseca

    2012-01-01

    Milanez and Fonseca (2011) argue that the climate justice discourse has not been adopted by the media, society or the communities affected by extreme climate events in Brazil. The climate justice discourse has been adapted from the concept of environmental justice and created from the idea that the impacts of climate change affect different social groups in various ways and intensities. (?)

  20. Brazil Nut Effect and CONCRETE: Entering Terra Incognita

    NARCIS (Netherlands)

    Stroeven, P.; He, H.

    2012-01-01

    This paper presents some evidence of the impact of the Brazil nut effect (BNE) on concrete’s particulate structure on meso-level (aggregate) as well as on micro-level (cement paste). BNE is associated with long-range size segregation in particle mixtures due to vibration in slurry state of concrete,