Sample records for araguaiana tocantins brasil

  1. Novas observações e dados reprodutivos do pato-mergulhão Mergus octosetaceus na região do Jalapão, Tocantins, Brasil

    Microsoft Academic Search

    Marcelo de Oliveira Barbosa; Marissônia Lopes de Almeida

    The Endangered Brazilian Merganser Mergus octosetaceus is currently largely restricted to clear-water rivers and streams with rapids in the Brazilian Cerrado. The main extant populations occur in Minas Gerais, where the species is rather well known, Goiás and Tocantins states. In the Jalapão region of eastern Tocantins, six expeditions searching for mergansers were made in 2007 and 2008, along a

  2. Predação de Opisthocomus hoazin por Spizaetus ornatus e de Bubulcus ibis por Bubo virginianus em Tocantins, Brasil

    Microsoft Academic Search

    Túlio Dornas; Renato Torres Pinheiro

    Predation of Cattle Egret by the Great Horned Owl and Hoazin by the Ornate Hawk-Eagle in western Tocantins State, Brazil. We report the predation of Hoazin Opisthocomus hoazin by an immature Ornate Hawk-Eagle Spizaetus ornatus, a new prey for this species in Brazil. The Ornate Hawk-Eagle roosted together with Hoazin assembly in branches of Sapium haematospermum, typical river borderline vegetation.

  3. Ensemble flood forecasting on the Tocantins River - Brazil

    NASA Astrophysics Data System (ADS)

    Fan, Fernando; Collischonn, Walter; Jiménez, Karena; Sorribas, Mino; Buarque, Diogo; Siqueira, Vinicius

    2014-05-01

    The Tocantins River basin is located in the northern region of Brazil and has about 300.000 km2 of drainage area upstream of its confluence with river Araguaia, its major tributary. The Tocantins River is intensely used for hydropower production, with seven major dams, including Tucuruí, world's fourth largest in terms of installed capacity. In this context, the use of hydrological streamflow forecasts at this basin is very useful to support the decision making process for reservoir operation, and can produce benefits by reducing damages from floods, increasing dam safety and upgrading efficiency in power generation. The occurrence of floods along the Tocantins River is a relatively frequent event, where one recent example is the year of 2012, when a large flood occurred in the Tocantins River with discharge peaks exceeding 16.000m³/s, and causing damages to cities located along the river. After this flooding event, a hydrological forecasting system was developed and is operationally in use since mid-2012 in order to assist the decision making of dam operation along the river basin. The forecasting system is based on the MGB-IPH model, a large scale distributed hydrological model, and initially used only telemetric data as observed information and deterministic rainfall forecasts from the Brazilian Meteorological Forecasting Centre (CPTEC) with 7-days lead time as input. Since August-2013 the system has been updated and now works with two new features: (i) a technique for merging satellite TRMM real-time precipitation estimative with gauged information is applied to reduce the uncertainty due to the lack of observed information over a portion of the basin, since the total number of rain gages available is scarce compared to the total basin area; (ii) rainfall ensemble forecasts with 16-days lead time provided by the Global Ensemble Forecasting System (GEFs), from the 2nd Generation of NOAA Global Ensemble Reforecast Data Set, maintained by the National Center for Environmental Prediction (NCEP-NOAA) of the United States, are added in the system as additional inputs. This system is one of the first operational ensemble forecasting systems in Brazil, and it is also one of the first based on mixed satellite-telemetric data. This work presents the Tocantins forecasting system and some hindcasting analysis of how recent floods could have been predicted with the use of the ensemble forecasts.

  4. Hydrologic investigations in the Araguaia-Tocantins River basin (Brazil)

    USGS Publications Warehouse

    Snell, Leonard J.

    1979-01-01

    The Araguaia-Tocantins River basin system of central and northern Brazil drains an area of about 770,000 square kilometers and has the potential for supporting large-scale developments. During a short visit to the headquarters of the Interstate Commission for the Araguaia-Tocantins Valley and to several stream-gaging stations in June 1964, the author reviewed the status of the streamflow and meteorological data-collection programs in relation to the streamflow and meteorological data-collection programs in relation to the pressing needs of development project studies. To provide data for areal and project-site studies and for main-stream sites, an initial network of 33 stream gaging stations was proposed, including the 7 stations then in operation. Suggestions were made in regard to operations, staffing and equipment. Organizational responsibilities for operations were found to be divided uncertainly. The Brazilian Meteorological Service had 15 synoptic stations in operation in and near the basin, some in need of reconditioning. Plans were at hand for the addition of 15 sites to the synoptic network and for limited data collection at 27 other sites. The author proposed collection of precipitation data at about 50 other locations to achieve a more representative areal distribution. Temperature, evaporation, and upper-air data sites were suggested to enhance the prospective hydrometeorological studies. (USGS)

  5. Ichthyofauna, fish supply and fishermen activities on the mid-Tocantins River, Maranhão State, Brazil.

    PubMed

    Garavello, J C; Garavello, J P; Oliveira, A K

    2010-08-01

    This article concerns an inventory of the ichthyofauna from the main channel of the mid-Tocantins River and studies on fisheries in this region including an evaluation of activities from Colônia de Pesca Z-35 of Estreito and Carolina in Tocantins and Maranhão States, Brazil, during 1999 and 2000. This study includes taxonomy and fishery data obtained from field collections and from interviews with the fishermen, carried out in March and July of 2001. The systematic record and fishery data were obtained from the most common species of the ichthyofauna of the mid-Tocantins River. A critical examination of fish resources from this area allows us to conclude that the large commercial species have decreased in number and are qualitatively reduced in that area of Tocantins. This fact may be a result of breaking the main channel of Tocantins, first by the hydroelectric power dam of Tucurui, twenty years ago, followed by the formation of the hydroelectric reservoirs of Lageado, Peixe Angical and Serra da Mesa, that transformed the main channel of Tocantins into a successive cascade of reservoirs. Those events may perhaps modify the profile of the fish community in that area. The obtained data also permit an examination of fisheries in the area, providing an appraisal on forthcoming problems that will be faced by fishermen of Colônia de Pesca Z-35. PMID:20730344

  6. Avaliação do estado nutricional da comunidade indígena Parkatêjê, Bom Jesus do Tocantins, Pará, Brasil

    Microsoft Academic Search

    Jane de Carlos Santana Capelli; Sergio Koifman

    2001-01-01

    The nutritional status of the Mãe-Maria indigenous community in Bom Jesus do To- cantins, Pará State, Brazil, was ascertained in a descriptive study in which ninety percent of the total population (278 individuals) agreed to participate. Weight-for-height and height-for-age indices and Body Mass Index (BMI) were ascertained for children and adults by gender, respec- tively, as were weight and height

  7. Triatoma jatai sp. nov. in the state of Tocantins, Brazil (Hemiptera: Reduviidae: Triatominae)

    PubMed Central

    Gonçalves, Teresa Cristina Monte; Teves-Neves, Simone Caldas; dos Santos-Mallet, Jacenir Reis; Carbajal-de-la-Fuente, Ana Laura; Lopes, Catarina Macedo

    2013-01-01

    Triatoma jatai sp. nov. is the first new species of triatomine to be described in the state of Tocantins, in the northern region of Brazil. It was caught on rock outcrops in the wild environment and, more recently, invading homes. While T. jatai sp. nov. is morphologically similar to Triatoma costalimai, it is distinguished by its general colouring, differences in the blotches on the connexivum, wing size in females and external structures of the male genitalia. The type series has been deposited in the Entomological Collection and Herman Lent Collection, Oswaldo Cruz Institute-Oswaldo Cruz Foundation, Rio de Janeiro, Brazil. PMID:23828010

  8. Rhinolekos capetinga: a new cascudinho species (Loricariidae, Otothyrinae) from the rio Tocantins basin and comments on its ancestral dispersal route

    PubMed Central

    Roxo, Fábio F.; Ochoa, Luz E.; Silva, Gabriel S. C.; Oliveira, Claudio

    2015-01-01

    Abstract The present study deals with the description of a new species of Rhinolekos. It can be distinguished from its congeners by having 31 vertebrae, the anterior portion of the compound supraneural-first dorsal-fin proximal radial contacting the neural spine of the 9th vertebra, the absence of transverse dark bands in the pectoral, pelvic and anal-fin rays, 24–28 plates in the dorsal series, the lack of odontodes on the ventral tip of the snout, the absence of accessory teeth, a greater prenasal length, a smaller head length, and by a greater snout length. Rhinolekos capetinga is restricted to the headwaters of the rio Tocantins and it is the first species of this genus in the Amazon basin. Additionally, we present a brief discussion of a biogeographic scenario that may explain the dispersal of the new species from the rio Paranaíba to the rio Tocantins basin. We suggest that the ancestral lineage of Rhinolekos capetinga reached the rio Tocantins from portions of the rio Paranaíba at the end of the Miocene, about 6.3 Mya (4.1–13.9 Mya 95% HPD), probably as a result of headwater capture processes among adjacent drainages. PMID:25685034

  9. A new variety of Declieuxia cucuminis (Rubiaceae) from the state of Tocantins, Brazil, and a review of the varieties recognized in the species

    Technology Transfer Automated Retrieval System (TEKTRAN)

    A new variety of Declieuxia cacuminis Müll. Arg. is described and illustrated, D. cacuminis var. tocantinensis Delprete & J.H. Kirkbr. The new variety is endemic to the Brazilian state of Tocantins, and has been reported from cerrado vegetation in the southeastern corner of the state....

  10. Case studies on the geological application of LANDSAT imagery in Brazil. [Sao Domingos Range, Pocos de Caldas, and Araguaia and Tocantins Rivers

    NASA Technical Reports Server (NTRS)

    Demendonca, F. (principal investigator); Correa, A. C.; Liu, C. C.

    1975-01-01

    The author has identified the following significant results. Sao Domingos Range, Pocos de Caldas, and Araguaia and Tocantins Rivers in Brazil were selected as test sites for LANDSAT imagery. The satellite images were analyzed using conventional photointerpretation techniques, and the results indicate the application of small scale image data in regional structural data analysis, geological mapping, and mineral exploration.

  11. Anthropically dislodged assemblages of sponges (Porifera: Demospongiae) in the River Araguaia at Araguatins, Tocantins State, Brazil Assembléias de esponjas desalojadas no Rio Araguaia em Araguatins, Estado do Tocantins, Brasil

    Microsoft Academic Search

    C. Volkmer-Ribeiro; Salvador França; Rodovia Washington Luís

    A recent outbreak of an human ocular disease at Araguaia River by the town of Araguatins, TO, Central Amazonia, along the low water period of 2005 required pathological analyses of surgically extracted ocular tissues. Spicules which invest the gemmules of the freshwater sponges Drulia uruguayensis and D. ctenosclera were found inside these ocular materials. Such relation between an ocular disease

  12. Pasture evapotranspiration as indicators of degradation in the Brazilian Savanna: a case study for Alto Tocantins watershed

    NASA Astrophysics Data System (ADS)

    Andrade, Ricardo G.; de C. Teixeira, Antônio H.; Sano, Edson E.; Leivas, Janice F.; Victoria, Daniel C.; Nogueira, Sandra F.

    2014-10-01

    The Alto Tocantins watershed, located in the Brazilian Savanna (Cerrado biome), is under an intense land use and occupation process, causing increased pressure on natural resources. Pasture areas in the region are highly relevant to the rational use of natural resources in order to achieve economic and environmental sustainability. In this context, remote sensing techniques have been essential for obtaining information relevant to the assessment of vegetation conditions on a large scale. This study aimed to apply this tool in conjunction with field measurements to evaluate evapotranspiration (ET) against pasture degradation indicators. The SAFER algorithm was applied to estimate ET using MODIS images and weather station data from year 2012. Results showed that ET was lower in degraded pastures. It is noteworthy that during low rainfall period, ET values were 22.2% lower in relation to non-degraded pastures. This difference in ET indicates changes in the partition of the energy balance and may impact the microclimate. These results may contribute to public policies that aim to reduce the loss of the productive potential of pastures.

  13. The phlebotomine fauna (Diptera: Psychodidae) of Guaraí, state of Tocantins, with an emphasis on the putative vectors of American cutaneous leishmaniasis in rural settlement and periurban areas.

    PubMed

    Vilela, Maurício Luiz; Pita-Pereira, Daniela de; Azevedo, Carina Graser; Godoy, Rodrigo Espíndola; Britto, Constança; Rangel, Elizabeth Ferreira

    2013-08-01

    Phlebotomine sandflies were captured in rural settlement and periurban areas of the municipality of Guaraí in the state of Tocantins (TO), an endemic area of American cutaneous leishmaniasis (ACL). Forty-three phlebotomine species were identified, nine of which have already been recognised as ACL vectors. Eleven species were recorded for the first time in TO. Nyssomyia whitmani was the most abundant species, followed by Evandromyia bourrouli, Nyssomyia antunesi and Psychodopygus complexus. The Shannon-Wiener diversity index and the evenness index were higher in the rural settlement area than in the periurban area. The evaluation of different ecotopes within the rural area showed the highest frequencies of Ev. bourrouli and Ny. antunesi in chicken coops, whereas Ny. whitmani predominated in this ecotope in the periurban area. In the rural settlement area, Ev. bourrouli was the most frequently captured species in automatic light traps and Ps. complexus was the most prevalent in Shannon trap captures. The rural settlement environment exhibited greater phlebotomine biodiversity than the periurban area. Ps. complexus and Psychodopygus ayrozai naturally infected with Leishmania (Viannia) braziliensis were identified. The data identified Ny. whitmani as a potential ACL vector in the periurban area, whereas Ps. complexus was more prevalent in the rural environment associated with settlements. PMID:23903972

  14. Brasil: Festival de Londrina 1989

    E-print Network

    Rizk, Beatriz J.

    1990-04-01

    SPRING 1990 M Brasil: Festival de Londrina 1989 Beatriz J. Rizk La ciudad de Londrina, en el corazón de Paraná, Brasil, celebro su II Muestra Latinoamericana de Teatro simultáneamente con el III Foro de Cultura. Retomando la tradición del... una delegación internacional representativa de todos los estamentos de la vida artística e intelectual del continente para un "Diálogo Internacional de la Cultura" en apoyo y solidaridad con los trabajadores de la cultura colombiana. Este evento se...

  15. PERSPECTIVAS DA AGROENERGIA NO BRASIL

    Microsoft Academic Search

    Carlos Eduardo de Freitas Vian; Walter Belik; Luiz Fernando Paulillo; Leandro Menegon Corder

    2008-01-01

    Este texto tem por objetivo fazer uma revisão do estágio atual da produção mundial de biocombustíveis, das políticas adotadas nos vários países e das perspectivas de inserção do Brasil neste processo como produtor e exportador de biocombustíveis, conciliando isto com o desenvolvimento econômico e social e com o respeito ao meio-ambiente. Os autores destacam a necessidade de conciliação das ações

  16. IDD-BRASIL: Implementation and Progress

    NASA Astrophysics Data System (ADS)

    Chagas, G. O.; Almeida, W. G.; Yoksas, T.; Cutrim, E. M.; Garrana, D.

    2007-05-01

    In response to the academic meteorological community's demand for real-time weather data, and access to datasets not readily available, the Unidata Program of the University Corporation for Atmospheric Research (UCAR) developed the Internet Data Distribution, IDD system. With a modest beginning in the early 1990's, IDD has grown to become the leading Internet2 advanced-application by delivering over 20 terabytes of data per week to over 160 institutions in the US and around the world. Meteorological and related real-time data, model output, and a vast amount of experimental products are delivered at no cost to the Unidata participating institutions. In 2004, through a collaboration among three leading universities and research centers in Brazil, the Centro de Previsão de Tempo e Estudos Climáticos (CPTEC/INPE), the Universidade Federal do Rio de Janeiro (UFRJ), and the Universidade de São Paulo (USP), the Unidata IDD has expanded into Brazil creating a data sharing peer, the IDD-Brasil. Throughout a series of outreach initiatives, the IDD-Brasil is extending its reach, providing data to universities in Argentina, Chile, Africa and Portugal. By lowering the barrier between distant institutions, participants are now cooperating and sharing many datasets that were not generally available outside their organizations. Future plans include the deployment of a new data-relay node in cooperation with Universidade de Aveiro, Portugal in order to provide a local source of data for institutions in Portugal and Africa, and the distribution of products derived from the GOES-10 satellite, which covers mainly South America, through IDD in real-time. Jointly, the IDD and IDD-Brasil are fostering new collaborations among universities, WMO Regional Meteorological Training Centers, and national meteorological agencies, empowering the Atmospheric Sciences across several countries.

  17. ENCUESTA DE FENÓMENOS PARAPSICOLÓGICOS EN BRASIL: COMENTARIOS SOBRE \\

    Microsoft Academic Search

    Carlos S. Alvarado

    Resúmen.- Este artículo consiste en un comentario sobre la encuesta de fenómenos psíquicos en Brasil recientemente publicada por Zangari y Machado (1996). La encuesta puede considerarse como un trabajo pionero en América Latina. El estudio contribuye a nuestros conocimientos en términos de la incidencia de los reportes de fenómenos, la fenomenología de las experiencias, la comparación con fenómenos de los

  18. Respostas religiosas à aids no Brasil: impressões de pesquisa1

    PubMed Central

    Seffner, Fernando; da Silva, Cristiane Gonçalves Meireles; Maksud, Ívia; Garcia, Jonathan; Rios, Luís Felipe; Natividade, Marcelo; Borges, Priscila Rodrigues; Parker, Richard; Terto, Veriano

    2009-01-01

    Resumo O texto encontra-se estruturado em quatro partes. Na primeira delas, apresentamos um conjunto de considerações e informações acerca da situação da aids no Brasil, das relações entre religião, sexualidade, aids e estado laico, bem como uma descrição mais clara do Projeto Respostas Religiosas ao HIV/Aids no Brasil, do qual este texto apresenta algumas impressões de pesquisa preliminares. A seguir, dedicamos um item a apresentação da Pastoral de DST/Aids, sua história, estrutura e objetivos. No item seguinte problematizamos diversas questões em particular no âmbito das relações Estado e Igreja, relações entre agentes de pastoral e hierarquia da Igreja, e questões ligadas mais diretamente à sexualidade e aids, todas referenciadas ao trabalho da Pastoral de DST/Aids. Ao final, apresentamos a bibliografia e fontes consultadas. PMID:20428503

  19. Sistematizao de ocorrncias de desastres naturais na regio Sul do Brasil Silvia Midori Saito1

    E-print Network

    Sistematização de ocorrências de desastres naturais na região Sul do Brasil Silvia Midori Saito1 - GEODESASTRES-SUL Caixa Postal 5021 - CEP: 97110-970, Santa Maria, RS, Brasil {silvia.saito; camila

  20. Religio e TeRRiTRio no BRasil: 1991/2010

    E-print Network

    Religião e TeRRiTóRio no BRasil: 1991/2010 Cesar Romero Jacob Dora Rodrigues Hees Philippe Waniez Jacob, Dora Rodrigues Hees, Philippe Waniez. ­ Rio de Janeiro : Ed. PUC-Rio, 2013. 85 p. : il. (color sociais - Brasil. I. Hees, Dora Rodrigues. II. Waniez, Philippe. III. Título. CDD: 291.0981 #12;Religião e

  1. Alguns Aspectos do Teatro no Brasil nos Séculos XVIII e XIX

    E-print Network

    Araú jo, Né lson de

    1977-10-01

    a Portugal em 1794. A diversificação de géneros, uma das tónicas do teatro português de então, teve alguns reflexos no Brasil, ao menos fazendo chegar até o Rio o teatro de bonecos, extremamente popular em Lisboa, cedo testemunhado por viajantes... estrangeiros na cidade brasileira. O início do século viu amiudarem-se os espetáculos teatrais em solenidades públicas, como já vinha acontecendo no anterior. Seis comédias foram encenadas na Bahia em 1729 para celebrar o casamento do Príncipe do Brasil com...

  2. HELMINTOS DE Myleus micans (LÜTKEN, 1875) (CHARACIFORMES: SERRASALMINAE) DO RIO SÃO FRANCISCO, BRASIL

    Microsoft Academic Search

    MARILIA DE C. BRASIL-SATO; MICHELLE D. DOS SANTOS

    2 ABSTRACT.- BRASIL-SATO, M. DE C.; SANTOS, M. D. DOS (Helminths of Myleus micans (Lütken, 1875) (Characiformes: Serrasalminae) from the São Francisco river, Brazil.) Helmintos de Myleus micans (Lütken, 1875) (Characiformes: Serrasalminae) do rio São Francisco, Brasil. Revista Brasileira de Parasitologia Veteriná- ria, v. 12, n. 3, p. 131-134, 2003. Departamento de Biologia Animal, UFRRJ, Km 47, Antiga Rod. Rio-São

  3. Zoneamento agrícola e época de semeadura para trigo no Brasil Agricultural zoning and sowing dates for wheat in Brazil

    Microsoft Academic Search

    Gilberto Rocca da Cunha; João Carlos Haas; Jaime Ricardo; Tavares Maluf; Paulo Henrique Caramori; Eduardo Delgado Assad; Hugo José Braga; Jurandir Zullo Jr; Cláudio Lazzarotto; Sérgio Gonçalves; Marcos Wrege; Dionísio Brunetta; Sérgio Roberto Dotto; Hilton Silveira Pinto; Orivaldo Brunini; Vera Magali; Radtke Thomé; Sérgio Luiz Zampieri; Aldemir Pasinato; Márcia Barrocas Moreira Pimentel; Cristina Pandolfo

    2001-01-01

    Resumo - Um Programa de Zoneamento Agrícola para o Brasil, subsidiando a política de crédito e securidade rural, começou a ser posto em prática pelo Ministério da Agricultura, Pecuária e Abastecimento (MAPA) a partir da safra de inverno de 1996, com a cultura de trigo no sul do Brasil. Este artigo apresenta uma síntese dos trabalhos sobre zoneamento agrícola para

  4. Cohort Profile: Longitudinal Study of Adult Health (ELSA-Brasil)

    PubMed Central

    Schmidt, Maria Inês; Duncan, Bruce B; Mill, José Geraldo; Lotufo, Paulo A; Chor, Dóra; Barreto, Sandhi Maria; Aquino, Estela ML; Passos, Valéria Maria Azeredo; Matos, Sheila MA; Molina, Maria del Carmen B; Carvalho, Marilia S; Bensenor, Isabela M

    2015-01-01

    Chronic diseases are a global problem, yet information on their determinants is generally scant in low- and middle-income countries. The Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) aims to contribute relevant information regarding the development and progression of clinical and subclinical chronic diseases, particularly cardiovascular diseases and diabetes, in one such setting. At Visit 1, we enrolled 15 105 civil servants from predefined universities or research institutes. Baseline assessment (2008–10) included detailed interviews and measurements to assess social and biological determinants of health, as well as various clinical and subclinical conditions related to diabetes, cardiovascular diseases and mental health. A second visit of interviews and examinations is under way (2012–14) to enrich the assessment of cohort exposures and to detect initial incident events. Annual surveillance has been conducted since 2009 for the ascertainment of incident events. Biological samples (sera, plasma, urine and DNA) obtained at both visits have been placed in long-term storage. Baseline data are available for analyses, and collaboration via specific research proposals directed to study investigators is welcome. PMID:24585730

  5. Os determinantes da desigualdade de renda no Brasil: Luta de classes ou heterogeneidade educacional?

    Microsoft Academic Search

    Francisco de Hollanda Guimarães Ferreira

    2000-01-01

    Este trabalho considera a questão: quais os principais determinantes da desigualdade de renda no Brasil? Após lembrar a importância da questão para a nossa economia, o artigo sugere um arcabouço genérico para categorizar os determinantes da distribuição de renda, baseado em cinco grupos de fatores: caraterísticas natas dos indivíduos; suas características adquiridas; o papel do mercado de trabalho; o papel

  6. ALTERNATIVAS PARA A GERAÇÃO DE ENERGIA RENOVÁVEL NO BRASIL: A OPÇÃO PELA BIOMASSA

    Microsoft Academic Search

    Mariane Silva Marconato; Giuliana Aparecida Santini

    2008-01-01

    Durante muito tempo, os recursos fósseis e hídricos foram os grandes propulsores da civilização e da economia. O Brasil também se apoiou nessas fontes energéticas para o desenvolvimento de atividades industriais, agrícolas, de serviços e da própria sociedade. Entretanto, vive-se hoje uma crise no abastecimento energético, em função da problemática geopolítica, econômica e ambiental em torno da extração e comercialização

  7. PASSADO E PRESENTE DA POLÍTICA DE GESTÃO DOS RECURSOS HÍDRICOS NO BRASIL

    Microsoft Academic Search

    ANTÔNIO AUGUSTO; ROSSOTTO IORIS

    Resumo - Escassez hídrica, poluição dos rios e desiguais oportunidades de acesso à água são sintomas de um crescente antagonismo entre desenvolvimento eco- nómico e questões socioambientais no Brasil. Este progressivo afastamento entre economia e ambiente decorre de um processo mais amplo de acumulação de capital e inserção subordinada do país no mercado mundial. Reformas institucionais recen- tes vêm promovendo

  8. DEMONSTRATION CENTER FOR SUSTAINABLE PRACTICES: THE RENOVATION OF PASSEIO PÚBLICO, CURITIBA, BRASIL

    Microsoft Academic Search

    Kelly Woodward; Thomas Calderwood; Eloy F. Casagrande Jr; Sarah Vesseld

    Addressing three aspects of sustainability, environment, society and economy, the proposed renovations of Curitiba Brasil'sPasseio Públicointend to demonstrate the impact that a sustainable designed park can have on visitors and the surrounding area. Passeio Público celebrated 150 years as a park this year ant it was the first Zoo of Curitiba. The park has an area of 70.000 square meters,

  9. AVALIAÇÃO DA VULNERABILIDADE DAS ÁGUAS SUBTERRÂNEAS NO MUNICÍPIO DE SANTA CRUZ DO SUL, RS\\/BRASIL

    Microsoft Academic Search

    Mónica Montaña Martínez; José Luiz Silvério da Silva

    Resumo - Em função da expansão populacional do planeta o uso dos recursos hídricos vem sendo ampliados em função da necessidade de incrementar a produção de alimentos, bens transformados pela indústria, além do aumento dos resíduos e sua disposição. A pesquisa realizou-se no município de Santa Cruz do Sul, RS-Brasil, utilizando dados pré-existentes, em área de ocorrência do SAG. As

  10. Avança Brasil: environmental and social consequences of Brazil's planned infrastructure in Amazonia.

    PubMed

    Fearnside, Philip M

    2002-12-01

    "Avança Brasil" (Forward Brazil) is a package of 338 projects throughout Brazil; the portion of the plan to be carried out in Brazil's Legal Amazon region totals US$43 billion over 8 years, US$20 billion of which would be for infrastructure causing environmental damage. Brazil's environmental impact assessment system is not yet capable of coping with the challenge presented by Avança Brasil. Generic problems with the licensing process include stimulation of a lobby in favor of construction before decisions are made on the advisability of the projects, the "dragging effect" of third parties, whereby economic activity is attracted to the infrastructure but escapes the environmental impact assessment system, a tendency for consulting firms to produce favorable reports, a bureaucratic emphasis on the existence of steps without regard to the content of what is said, and the inability to take account of the chain of events unleashed when a given project is undertaken. The environmental and social costs of forest loss are high; among them is loss of opportunities for sustainable use of the forest, including loss of environmental services such as biodiversity maintenance, water cycling, and carbon storage. The benefits of export infrastructure are meager, especially from the point of view of generating employment. Much of the transportation infrastructure is for soybeans, while the hydroelectric dams contribute to processing aluminum. The example of Avança Brasil makes clear the need to rethink how major development decisions are made and to reconsider a number of the plan's component projects. PMID:12402090

  11. Estrada Dona Castorina, 110 Rio de Janeiro -Brasil 22460-320 Fone: 55 21 2529 5000/5284 Fax: 55 21 2512 4115 http://www.impa.br

    E-print Network

    Solodov, Mikhail V.

    Estrada Dona Castorina, 110 Rio de Janeiro - Brasil 22460-320 Fone: 55 21 2529 5000/5284 Fax: 55 21 a 29 de fevereiro de 2012. Rio de Janeiro, 29 de fevereiro de 2012. Alfredo Iusem Coordenador de Atividades Científicas #12;Estrada Dona Castorina, 110 Rio de Janeiro - Brasil 22460-320 Fone: 55 21 2529

  12. ETNOECOLOGIA DOS CÁGADOS-D'ÁGUA PHRYNOPS SPP. (TESTUDINOMORPHA: CHELIDAE) ENTRE PESCADORES ARTESANAIS NO AÇUDE BODOCONGÓ, CAMPINA GRANDE, PARAÍBA, NORDESTE DO BRASIL 1

    Microsoft Academic Search

    ÂNGELO G. C. ALVES; FRANCISCO JOSÉ B. SOUTO; ARACÉLIA M. LEITE

    4 Professora da Rede Particular de Ensino no estado do Maranhão. (Etnoecologia dos cágados-d'água Phrynops spp. (Testudinomorpha: Chelidae) entre pescadores artesanais no Açude Bodocongó, Campina Grande, Paraíba, Nordeste do Brasil) - Bodocongó é um açude urbano localizado em Campina Grande, Paraíba, Nordeste do Brasil (07°13'11\\

  13. LIVROS DIDTICOS E SUAS FUNES PARA O PROFESSOR DE MATEMTICA NO BRASIL E NA FRANA.

    E-print Network

    Paris-Sud XI, Université de

    LIVROS DIDÁTICOS E SUAS FUN��ES PARA O PROFESSOR DE MATEMÁTICA NO BRASIL E NA FRAN�A. Clovis Gomes-Claude.Regnier@univ-lyon2.fr RESUMO Esse texto aborda as funções do livro didático de matemática em dois n que visa pôr em evidência o livro didático de matemática como «vetor de formação continuada» para os

  14. MODELAGEM MATEMÁTICA DOS NÍVEIS D'ÁGUA NO RIO ARAGUAIA

    Microsoft Academic Search

    Rone Antônio de Azevedo

    Resumo - Este trabalho é pioneiro para a região Centro-Oeste do Brasil e visa ao aprofundamento da problemática do aproveitamento do Rio Araguaia como via navegável para transportar as safras de grãos das regiões Centro-Norte. O Programa de Desenvolvimento da Hidrovia Tocantins- Araguaia é uma iniciativa do Ministério dos Transportes para estabelecer a navegação fluvial confiável e segura em 2.242

  15. DISTRIBUIÇÃO ESPACIAL E TEMPORAL DOS ANUROS EM UM BREJO DA RESERVA BIOLÓGICA DE DUAS BOCAS, SUDESTE DO BRASIL 1

    Microsoft Academic Search

    GUSTAVO M. PRADO; JOSÉ P. POMBAL JR

    Spatial and temporal distribution of anurans in a swamp of Reserva Biológica de Duas Bocas, Southeastern Brazil. This study aimed to investigate space and time partitioning related to reproductive activity of anuran species in a swamp of Reserva Biológica de Duas Bocas, State of Espírito Santo, Southeastern Brasil. We evaluate space use distribution through vertical distribution, obtained by the measurement

  16. Gastrointestinal Helminths of Six Sympatric Species of Leptodactylus from Tocantins State, Brazil

    E-print Network

    Shepard, Don

    of Brevimulticaecum sp. and Physaloptera sp.), and 1 species of Acanthocephala (as cystacanths) were found. The mean host records are reported. KEY WORDS: Leptodactylus, Digenea, Nematoda, Acanthocephala, Anura

  17. Low energy nuclear reactions with RIBRAS, Radioactive Ion Beam in Brasil, system

    NASA Astrophysics Data System (ADS)

    Guimarães, V.; Lépine-Szily, A.; Lichtenthäler, R.; de Faria, P. N.; Barioni, A.; Pires, K. C. C.; Morcelle, V.; Mendes, D. R.; Zamora, J. C.; Morais, M. C.; Condori, R. P.; Benjamim, E. A.; Monteiro, D. S.; Crema, E.; Moro, A. M.; Lubian, J.

    2011-09-01

    RIBRAS, Radioactive Ion beam in Brasil, is a system based on superconducting solenoids which can produce low energy RNB (Radioactive Nuclear Beams) at the University of São Paulo, Brazil. Secondary radioactive beams of light particles such as 6He, 7Be and 8Li have been produced and low energy elastic scattering and transfer reaction experiments have been performed. The recent scientific program using this facility includes elastic scattering and transfer reactions of 6He halo nucleus on 9Be, 27Al, 51V and 120Sn targets and 8Li on 9Be, 12C and 51V targets. The total reaction cross section as a function of energy has been extracted from the elastic scattering data and the role of breakup of weakly bound or exotic nuclei is discussed. Also spectroscopic factors have been obtained from the transfer reactions.

  18. [Science, aesthetics and race: images and texts inO Brasil Médico, 1928-1945].

    PubMed

    Silva, Eliana Gesteira da; Fonseca, Alexandre Brasil

    2013-11-30

    This study addresses the formation of discourse about race and eugenics in texts and images published in O Brasil Médico, between 1928 and 1945. The documental analysis inspired on Foucault's theoretical and methodological perspectives, especially the concept of biopolitics, encountered references to the problems of eugenics amongst the Brazilian population, as well as a set of illustrations, mostly photographs of black people's bodies. A contradiction was identified, where a universalistic discourse about race was expressed at the same time that discourses about eugenics and biotypes revealed concerns about the degeneration of the formation of the Brazilian race. These discourses describe a Brazilian race with an idealized standard of physical and moral normality to serve as a model for the development and modernization of the nation. PMID:24346202

  19. Tendências De Teses e Dissertações Sobre Educação em Astronomia No Brasil

    NASA Astrophysics Data System (ADS)

    Bretones, Paulo Sergio; Megid Neto, Jorge

    2005-07-01

    Apresentam-se os resultados de uma pesquisa do tipo estado da arte sobre teses e dissertações defendidas no Brasil e relativas ao ensino de Astronomia, com objetivo de identificar essa produção e conhecer as principais tendências da pesquisa nesse campo. Foram localizadas 13 dissertações de mestrado e 3 teses de doutorado, as quais foram estudadas em função dos seguintes aspectos: isntituição, ano de defesa, nível escolar abrangido no estudo, foco temático do estudo e gênero de trabalho acadêmico. Pretende-se assim colaborar com a divulgação ampla da produção acadêmica na área. Ao mesmo tempo o estudo possibilita, a partir de investigações decorrentes, apontar as contribuições dessa produção para o ensino e sinalizar com necessidades a serem supridas por futuras pesquisas.

  20. Tendências de teses e dissertações sobre ensino de astronomia no Brasil

    NASA Astrophysics Data System (ADS)

    Bretones, P. S.; Megid Neto, J.

    2003-08-01

    Neste trabalho são apresentados os resultados de uma pesquisa do tipo estado da arte sobre teses e dissertações defendidas no Brasil e relativas ao ensino de Astronomia. Teve por objetivo identificar essa produção e conhecer as principais tendências da pesquisa nesse campo. O procedimento inicial consistiu de um levantamento bibliográfico junto ao Centro de Documentação em Ensino de Ciências (CEDOC) da Faculdade de Educação da UNICAMP e ao Banco de Teses da CAPES disponível na Internet. Foram localizadas 13 dissertações de mestrado e 3 teses de doutorado, as quais foram estudadas em função dos seguintes aspectos: instituição, ano de defesa, nível escolar abrangido no estudo, foco temático do estudo e gênero de trabalho acadêmico. Deste conjunto de pesquisas, 13 (81,3%) delas foram defendidas a partir da segunda metade dos anos 90, indicando uma preocupação mais recente com temas relativos ao ensino de Astronomia no conjunto da produção acadêmica em programas de pós-graduação no Brasil. Verificou-se que 43,7% dos trabalhos foram produzidas na USP e 18,8% na UNICAMP. Quanto ao nível escolar abrangido nos estudos, predominaram os estudos direcionados ao Ensino Fundamental de 5a a 8a séries (62,5%). No que diz respeito ao foco temático das pesquisas, as principais tendências voltaram-se: 56,3% para Conteúdo e Método; 43,8% para Concepções do Professor; 37,5% para Currículo e Programas; 37,5% para Recursos Didáticos. Quanto ao gênero de trabalho acadêmico, verificou-se que 43,8% são de Pesquisa Experimental e 31,3% de Pesquisa de Análise de Conteúdo. Estudos de revisão bibliográfica como este visam colaborar com a divulgação ampla da produção acadêmica em determinada área, traçando algumas de suas tendências. Ao mesmo tempo possibilita, a partir de investigações decorrentes, apontar as suas contribuições para o ensino e sinalizar com necessidades a serem supridas por futuras pesquisas.

  1. Reproducibility of Left Ventricular Mass by Echocardiogram in the ELSA-Brasil

    PubMed Central

    Tognon, Alexandre Pereira; Foppa, Murilo; Luft, Vivian Cristine; Chambless, Lloyd Ellwood; Lotufo, Paulo; El Aouar, Lilia Maria Mameri; Fernandes, Luciana Pereira; Duncan, Bruce Bartholow

    2015-01-01

    Background Echocardiography, though non-invasive and having relatively low-cost, presents issues of variability which can limit its use in epidemiological studies. Objective To evaluate left ventricular mass reproducibility when assessed at acquisition (online) compared to when assessed at a reading center after electronic transmission (offline) and also when assessed by different readers at the reading center. Methods Echocardiographers from the 6 ELSA-Brasil study investigation centers measured the left ventricular mass online during the acquisition from 124 studies before transmitting to the reading center, where studies were read according to the study protocol. Half of these studies were blindly read by a second reader in the reading center. Results From the 124 echocardiograms, 5 (4%) were considered not measurable. Among the remaining 119, 72 (61%) were women, mean age was 50.2 ± 7.0 years and 2 had structural myocardial abnormalities. Images were considered to be optimal/ good by the reading center for 110 (92.4%) cases. No significant difference existed between online and offline measurements (1,29 g, CI 95% ?3.60-6.19), and the intraclass correlation coefficient between them was 0.79 (CI 95% 0.71-0.85). For images read by two readers, the intraclass correlation coefficient was 0.86 (CI 95% 0.78-0.91). Conclusion There were no significant drifts between online and offline left ventricular mass measurements, and reproducibility was similar to that described in previous studies. Central quantitative assessment of echocardiographic studies in reading centers, as performed in the ELSA-Brasil study, is feasible and useful in clinical and epidemiological studies performed in our setting.

  2. Reproductive biology of the characid dourado Salminus franciscanus from the São Francisco River, Brasil.

    PubMed

    Freitas, Leonardo J A; Prado, Paula S; Arantes, Fabio P; Santiago, Kleber B; Sato, Yoshimi; Bazzoli, Nilo; Rizzo, Elizete

    2013-06-01

    The neotropical characid Salminus franciscanus is an economically valuable migratory fish whose populations have been drastically reduced in recent decades due to industrial and economic development in Brasil. To study its reproduction, a total of 283 adult specimens were captured in the Upper São Francisco River, downstream from the Três Marias dam, Minas Gerais, south-eastern Brasil, from August 2009 to July 2010. The gonadal maturity stages were determined from histological features of the gonads and gonadosomatic index (GSI). Gametogenesis was assessed by light and electron microscopy. For analysis of the oocyte's surface and fecundity, mature females were subjected to hormonal induction and oocyte stripping. Fish in resting (Stage 1) were common in all samplings, ripening/ripe and spawning (Stages 2 and 3) were predominant in October-November and December-January and post-spawning (Stage 4) occurred from December-January extending until April-May. The GSI followed the morphological changes of gonadal maturation, with a peak in October-November, when maximum GSI (7.08 in females and 3.46 in males) was achieved. From scanning electron microscopy, stripped oocytes showed a funnel-shaped micropyle and a simple oocyte surface arrangement, which is typical for non-adhesive eggs. Fecundity ranged from 160 to 440×10(3) oocytes per female and 129 to 175×10(3)oocytes/kg. The results of this study indicate that S. franciscanus reproduces in the Upper São Francisco River from October to January, exhibiting a total spawning pattern, non-adhesive eggs and high fecundity, providing support for aquaculture and conservation biology of this important neotropical characid fish. PMID:23618945

  3. Respostas religiosas à aids no Brasil: impressões de pesquisa acerca da Pastoral de DST/Aids da Igreja Católica1

    PubMed Central

    Seffner, Fernando; Silva, Cristiane Gonçalves Meireles da; Maksud, Ívia; Garcia, Jonathan; Rios, Luís Felipe; Natividade, Marcelo; Borges, Priscila Rodrigues; Parker, Richard; Terto, Veriano

    2009-01-01

    O texto encontra-se estruturado em quatro partes. Na primeira delas, apresentamos um conjunto de considerações e informações acerca da situação da aids no Brasil, das relações entre religião, sexualidade, aids e estado laico, bem como uma descrição mais clara do Projeto Respostas Religiosas ao HIV/Aids no Brasil, do qual este texto apresenta algumas impressões de pesquisa preliminares. A seguir, dedicamos um item a apresentação da Pastoral de DST/Aids, sua história, estrutura e objetivos. No item seguinte problematizamos diversas questões em particular no âmbito das relações Estado e Igreja, relações entre agentes de pastoral e hierarquia da Igreja, e questões ligadas mais diretamente à sexualidade e aids, todas referenciadas ao trabalho da Pastoral de DST/Aids. Ao final, apresentamos a bibliografia e fontes consultadas. PMID:20442806

  4. Rapid spread of an invasive snail in South America: the giant African snail, Achatina fulica , in Brasil

    Microsoft Academic Search

    Silvana C. Thiengo; Fábio André Faraco; Norma C. Salgado; Robert H. Cowie; Monica A. Fernandez

    2007-01-01

    Beginning around 1800, but primarily since the early and mid-twentieth century, the giant African snail, Achatina (Lissachatina) fulica Bowdich, 1822, has been introduced throughout the tropics and subtropics and has been considered the most important snail\\u000a pest in these regions. In Brasil, specimens probably brought from Indonesia were introduced into the state of Paran? in the\\u000a 1980s for commercial purposes

  5. [Reproductive cycle of the mangrove oyster Crassostrea rhizophorae (Bivalvia: Ostreidae) in Camamu Bay, Bahia, Brasil].

    PubMed

    Lenz, Tiago; Boehs, Guisla

    2011-03-01

    The mangrove oyster Crassostrea rhizophorae is important fishery resource along the entire Brasilian coast with excellent potential for marine culture. The purpose of this paper was to examine the reproductive characteristics of the oyster of the Maraú river estuary in Camamu Bay, Bahia, Brasil. The samples were collected monthly, from September 2006 to August 2007, at two points (I and II) in Camamu Bay. At each site 20 oysters were collected for histological analysis, fixed in Davidson's solution, embedded in paraffin, dehydrated in an ethanol series, sectioned (7 microm thick) and stained with Harris hematoxylin and Eosin (HE). Additionally, 30 oysters were sampled, at each point, for a condition index analysis. The water temperature ranged from 23.5 degrees C to 30 degrees C and the salinity from 15 to 25 ups at Point I (Maraú) and from 25 to 35 at Point II (Tanque Island). The oyster's height ranged from 30 to 92 mm at Point I and from 27 to 102 mm at Point II, with an average of 49.0 mm +/- 9.1 (n = 230) and 49.9 mm +/- 9.9 (n = 237), respectively. Among the sampled oysters at Point I, 59.1% were females, 31.3% males, 1.3% hermaphrodites and 8.2% of the oysters of undetermined sex. At Point II, 66.2% were females, 30.4% males, 0.8% hermaphrodites and 2.5% (n = 237) of undetermined sex. The gonadic stage analysis indicated that the reproduction period of the C. rhizophorae in the Maraú Peninsula was continuous all year, without any regressive phase. The condition index (R) ranged from 8.0% to 17.7%. The peak periods of R coincided with the expressive oyster's percentage in the maturation and liberation gametic stages. The results of these findings will contribute information for the oyster spat collection and to the process installation of the oyster culture in Camamu Bay. PMID:21516642

  6. BUVA (Conyza bonariensis) RESISTENTE AO GLYPHOSATE NA REGIÃO SUL DO BRASIL1 Conyza bonariensis Biotypes Resistant to the Glyphosate in Southern Brazil

    Microsoft Academic Search

    L. VARGAS

    RESUMO - O glyphosate é um herbicida não-seletivo utilizado para controlar plantas daninhas há mais de 20 anos no Rio Grande do Sul. A buva (Conyza bonariensis) é uma espécie daninha comum nos Estados da região Sul do Brasil e tradicionalmente controlada com uso de glyphosate. Entretanto, nos últimos anos plantas de buva têm apresentado poucos sintomas de toxicidade em

  7. ESTRUTURA DE COMUNIDADES DE PEQUENOS MAMÍFEROS E DENSIDADE DE Necromys lasiurus (RODENTIA, SIGMODONTINAE) EM ÁREAS ABERTAS DE CERRADO NO BRASIL CENTRAL

    Microsoft Academic Search

    Rafael G. Becker; Gabriela Paise; Leandro C. Baumgarten; Emerson M. Vieira

    RESUMO: Investigamos comunidades de pequenos mamíferos de Cerrado em formações vegetais abertas do Parque Nacional de Emas (PNE), no Brasil Central. Amostramos 10 áreas que representavam as principais variações fisionômicas das áreas abertas do PNE. Avaliamos variações entre áreas na abundância, riqueza de espécies e densidade da espécie de pequeno mamífero mais comum na região (Necromys lasiurus). Amostramos no total

  8. Estudos sobre religião e saúde mental realizados no Brasil: histórico e perspectivas atuais Brazilian studies on religion and mental health: history and current perspectives

    Microsoft Academic Search

    PAULO DALGALARRONDO

    Resumo Contexto: Há mais de um século, vários pesquisadores brasileiros têm estudado as relações entre religiosidade e transtornos mentais, mas estes trabalhos são pouco conhecidos atualmente. Objetivos: apresentar um panorama e uma análise crítica da produção sobre saúde mental e religião no Brasil. Métodos: análise das pesquisas de relevância histórica, assim como investigações contemporâneas sobre o tema saúde mental e

  9. Influência da cobertura e do solo na composição florística do sub-bosque em uma floresta estacional semidecidual em Viçosa, MG, Brasil1

    Microsoft Academic Search

    João Augusto; Alves Meira-Neto; Fernando Roberto Martins; Agostinho Lopes de Souza

    RESUMO - (Influência da cobertura e do solo na composição florística do sub-bosque em uma floresta estacional semidecidual em Viçosa, MG, Brasil). A relação ecológica planta-luz tem sido estudada desde o início do século XX. As análises da relação da luminosidade ao nível das comunidades florestais têm se valido de medições indiretas por meio de índices de cobertura, mas sem

  10. Priority areas for riparian forest restoration in Southeastern Brazil Áreas prioritárias para a restauração da mata ripária no Sudeste do Brasil

    Microsoft Academic Search

    Ligia Barrozo Simões; Fernanda Leite Ribeiro; Renata C. Dainese; Lincoln Gehring Cardoso; Sérgio Campos

    RESUMO: Projetos de restauração da mata ripária em regiões tropicais são complexos, requerem pesquisa a longo prazo, esforços humanos contínuos e correto uso dos recursos financeiros. Este trabalho apresenta um método para estabelecer prioridades entre as áreas que necessitam de restauração da mata ripária na porção superior da bacia do Rio Pardo, São Paulo, Brasil, através da aplicação de sensoriamento

  11. DEZ ANOS DE EXPERIÊNCIA DO COMITÊ DE ÉTICA EM PESQUISA DA SECRETARIA DE SAÚDE DO DISTRITO FEDERAL, BRASIL

    PubMed Central

    Novaes, Maria Rita C. G.; Guilhem, Dirce; Lolas, Fernando

    2009-01-01

    O objetivo deste artigo é relatar a experiência do Comitê de Ética em Pesquisa da Secretaria de Estado de Saúde do Distrito Federal (CEP/SES/DF) Brasil, durante o período de 10 anos a partir de sua fundação. Trata-se de uma avaliação descritiva e documental, na modalidade estudo de caso, utilizando-se a totalidade de projetos protocolados no CEP/SES/DF (N° 052/08) nesse período. As pendências mais freqüentes dos projetos foram: termo de consentimento livre e esclarecido (30%), folha de rosto (25%), metodologia (20%), curriculum vitae (12%), planilha de orçamento (9%), outros (4%). O relato das atividades do CEP/SES/DF no período de 10 anos revelou, através de sua produtividade, a legitimidade do processo de análise ética dos protocolos visando à proteção dos participantes da pesquisa. PMID:19888441

  12. Pe. Jesus Hortal Snchez, S.J. REITOR Rua Marqus de So Vicente, 225 -Gvea -22453-900 Rio de Janeiro -RJ -BRASIL

    E-print Network

    Janeiro - RJ - BRASIL Tel. (021) 3527-1120/1124 - FAX (021) 3527-1119 - e-mail: hortal@puc-rio.br Rio de Janeiro, 3 de maio de 2010. AOS PROFESSORES, FUNCIONÁRIOS E ALUNOS DA PUC-RIO No dia 30 de outubro destePe. Jesus Hortal Sánchez, S.J. ­ REITOR Rua Marquês de São Vicente, 225 - Gávea - 22453-900 Rio de

  13. Susceptibility of Biomphalaria straminea from Peixe Angical dam, Tocantins, Brazil to infection with three strains of Schistosoma mansoni.

    PubMed

    Fernandez, Monica Ammon; Thiengo, Silvana Carvalho

    2010-07-01

    Environmental changes from water resource developmental projects affect the epidemiology of water-associated diseases, as well as malaria and schistosomiasis. Aiming to investigate the occurrence and distribution of freshwater snails of medical and veterinary importance in the area of influence of the Peixe Angical hydroelectric dam, a survey has been conducted over four years (2004-2008). The study has revealed the occurrence of populations of Biomphalaria straminea (Dunker) in all municipalities surrounding the lake. Studies on parasite-mollusc compatibility were undertaken using 35 populations of B. straminea, descendants of specimens obtained from that area and three strains of Schistosoma mansoni (Sambon) (BH, CM and CMO). The main results are as follows: (i) among the 1,314 specimens used, eight had been infected (infection index of 0.6%) with only the BH strain, (ii) for B. straminea populations, the mortality index was 6.8% and, depending on the strain used, the indexes were 4.6%, 8.49% and 19% with BH, CM and CMO strains, respectively, (iii) the infection indexes varied according to the B. straminea populations, ranging from 0-12.5% and (iv) the duration of the precercarial period varied from 25-49 days. These results, in addition to environmental and social changes that took place in the Peixe Angical dam region, indicate the possibility of B. straminea emerging as a schistosomiasis vector in this area. PMID:20721496

  14. Geographical patterns and partition of turnover and richness components of beta-diversity in faunas from Tocantins river valley.

    PubMed

    Tonial, M L S; Silva, H L R; Tonial, L J; Costa, M C; Silva Júnior, N J; Diniz-Filho, J A F

    2012-08-01

    There has been a resurging interest in patterns of ?-diversity, especially by the mechanisms driving broad-scale, continental and global patterns, and how partitioning ?-diversity into richness (or nestedness) and turnover components can be linked with such mechanisms. Here we compared two recent methodologies to find richness and turnover components of ?-diversity, using a large regional scale dataset of mammal, bird, reptiles and amphibian species found in seven regions of Central, North and Northeastern Brazil. As well as a simple comparison of the metrics available, we analyzed spatial patterns (i.e., distance-decay similarity) and the effects of biome type in these components using raw and partial Mantel tests. Our analyses revealed that turnover estimated using Baselga's (2010) approach is slightly higher than the estimate using Carvalho's et al. (2012) approach, but all analyses show consistent spatial patterns in species turnover using both methods. Spatial patterns in ?-diversity revealed by Mantel tests are also consistent with expectations based on differential dispersal abilities. Our results also reinforce that spatial patterns in ?-diversity, mainly in the turnover components expressing faunal differentiation, are determined by a mix or broad scale environmental effects and short distance spatially-structured dispersal. PMID:22990820

  15. Relações solo-geoambiente em áreas de ocorrências de Ipucas na planície do Médio Araguaia - Estado de Tocantins

    Microsoft Academic Search

    Alan Kardec Elias Martins; Carlos Ernesto G. R. Schaefer; Elias Silva; Vicente Paulo Soares; Guilherme Resende Corrêa; Bruno Araújo Furtado de Mendonça

    2006-01-01

    RESUMO - Dentre as paisagens do médio rio Araguaia, destacam-se as extensas planícies e depressões sazonalmente alagadas. Nelas se inserem formações florestais higrófilas denominadas Ipucas, como enclaves peculiares pela sua fitossociologia e ambiente pedogeomorfológico. Esses fragmentos florestais naturais ocorrem na planície fluvial, em região de ecótono entre o Cerrado e a Floresta Amazônica. Neste estudo, foi selecionada uma área de

  16. Evaluation of CO2 flux modification as a function of aerosol optical depth at Bananal Island, Tocantins, Brazil

    NASA Astrophysics Data System (ADS)

    Braghiere, Renato K.; Yamasoe, Marcia A.

    2013-05-01

    The Bananal Island is a flooded ecotonal area between the Amazon rain forest and the Brazilian savanna (Cerrado). It is the largest fluvial island in the world and an ecological protected area. However, the surrounding areas are burned to expand agricultural and cattle farmer productions. During the dry season, large amounts of aerosols are emitted into the atmosphere interacting with solar radiation. The diffuse part of the light can penetrate better into complex canopies enhancing the ecosystem productivity, a phenomenon known as "The Diffuse Fertilization Effect". Considering a time frame of one year, the ecosystems productivity is mainly controlled by meteorological variables like temperature, vapor pressure deficit (VPD), etc, and by the natural cycles of vegetation (circadian cycles). The Artificial Neural Networks (ANN) technique was used in this study to determinate the influence of smoke on CO2 flux at this site.

  17. Geology, petrology and geochemistry of the "Americano do Brasil" layered intrusion, central Brazil, and its Ni-Cu sulfide deposits

    NASA Astrophysics Data System (ADS)

    E Silva, Jonas Mota; Ferreira Filho, Cesar Fonseca; Bühn, Bernhard; Dantas, Elton Luiz

    2011-01-01

    The "Americano do Brasil" Complex (ABC) is part of a cluster of coeval synorogenic mafic-ultramafic intrusions emplaced during the Brasiliano/Pan-African Orogenic Cycle in Brazil. The medium-sized ABC consists of interlayered dunite, peridotite, websterite, and gabbronorite. High Fo values of olivine (up to Fo88) and the crystallization sequence of the ABC (Ol + Chr ? Ol + Opx + Chr ? Cpx + Opx ? Opx + Pl + Cpx ? Opx + Pl + Cpx + Ilm + Mag) suggest crystallization from tholeiitic high-MgO parental magmas. Light rare earth element (REE)-enriched mantle-normalized REE profiles and ?Nd(T) values of +2.4 for cumulate rocks from the ABC suggest a depleted mantle source for the parental magma. The ABC Ni-Cu sulfide deposit (3.1 Mt at 1.12 wt.% Ni and 1.02 wt.% Cu) consists of three distinctively different orebodies (S1, S2, and G2). The S2 orebody, an unusual occurrence of stratiform massive sulfide hosted by dunite and peridotite in the interior of a layered intrusion, results from sulfides accumulated at the transient base of the magma chamber following a new influx of parental magma. The G2 orebody has an irregular and roughly cylindrical shape, consisting mainly of net-textured sulfides. The G2 orebody is hosted by peridotite and pyroxenite and located stratigraphically below the S1 orebody. S2 and G2 orebodies are characterized by low Cu/Cu + Ni ratios (mainly below 0.4). The S1 orebody, hosted by websterite and gabbronorite in the more fractionated sequence of the ABC, is a cluster of several irregular discontinuous orebodies of Ni-Cu disseminated sulfides. The sulfides of the S1 orebody have high Cu/Cu + Ni ratios (mainly between 0.5 and 0.8) and are highly depleted in PGE. The S1 orebody is interpreted to result from a later event of sulfide segregation in the magma chamber, possibly following the event that originated the G2 orebody. The bulk of ?34S values for sulfides of the ABC orebodies and their host rocks fall in the range of 0 ± 2‰. Higher ?34S values (between 3‰ and 5‰) are restricted to pyrite from xenoliths of gneiss located close to the S1 orebody and sulfides from the S1 orebody. Crustal xenoliths and chemical data (lithogeochemistry and sulfur isotope composition) provide evidence of crustal contamination of the igneous rocks hosting the S1 orebody, suggesting that sulfur saturation was induced by contamination with sulfide-bearing crustal rocks. The ABC deposit is an example of Ni-Cu sulfide mineralization hosted by synorogenic mafic-ultramafic intrusions. The S2 orebody is the first documented example of an economic stratiform massive sulfide orebody located within layered intrusions, expanding the opportunities for exploration of Ni-Cu sulfides in orogenic regions worldwide.

  18. Negative life events and migraine: a cross-sectional analysis of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) baseline data

    PubMed Central

    2014-01-01

    Background Stress is a typical migraine trigger. However, the impact of negative life events on migraine activity is poorly studied. The aim of this study is to investigate the association between negative life events and migraine using data from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) baseline assessment. Methods ELSA-Brasil is a multicenter cohort study conducted in six Brazilian cities. Baseline assessment included validated questionnaires for headache classification and the occurrence of five pre-specified negative life events (financial hardship, hospitalization other than for childbirth, death of a close relative, robbery and end of a love relationship), focusing on a 12-month period before evaluation. We built crude and adjusted logistic regression models to study the association between the occurrences of negative life events and migraine diagnosis and activity. Results We included 4,409 individuals with migraine and 4,457 participants without headache (reference). After adjustment for age, sex, race, income and educational level, we found that the occurrence of a negative life event (Odds ratio?=?1.31; 95% confidence interval?=?1.19 – 1.45) was associated with migraine. However, after stratifying with subgroup analyses, only financial hardship (Odds ratio?=?1.65; 95% confidence interval?=?1.47 – 1.87) and hospitalization (Odds ratio?=?1.47; 95% confidence interval?=?1.25 – 1.72) were independently associated with migraine. Further adjustment for a current major depression episode and report of religious activity did not significantly change the results. Considering migraine frequency as (a) less than once per month, (b) once per month to once per week, or (c) more than once per week, financial hardship and hospitalization remained significantly associated with migraine in all episode frequency strata, with higher odds ratios for higher frequencies in adjusted models. We also observed a significant association between the death of a close relative and the highest migraine frequency stratum (Odds ratio?=?1.38; 95% confidence interval?=?1.09 – 1.75) in full-adjusted model. Conclusions The occurrence of financial hardship and hospitalization had a direct and independent association with migraine diagnosis and frequency. The death of a close relative was also independently associated with the highest migraine frequency stratum. PMID:24993032

  19. Earlier age at menarche is associated with higher diabetes risk and cardiometabolic disease risk factors in Brazilian adults: Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)

    PubMed Central

    2014-01-01

    Objectives Early menarche has been linked to higher risk of type 2 diabetes in Western and Asian societies, yet whether age at menarche is associated with diabetes in Latin America, where puberty and diabetes may have different life courses, is unknown. We tested the hypothesis that earlier menarche is associated with higher diabetes risk in Brazilian adults. Methods We used data from 8,075 women aged 35-74 years in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) who had complete information on age at menarche, diabetes status, and covariates. Diabetes was defined based on self-reported physician diagnosis, medication use, and laboratory variables (fasting glucose, 2-hour glucose, and glycated hemoglobin). Poisson regression was used to generate risk ratios (RR) and 95% confidence intervals (CI). Results Menarche onset < 11 years [vs. 13-14 years (referent)] was associated with higher risk of diabetes (RR = 1.34; 95% CI: 1.14-1.57) after adjusting for sociodemographic factors, maternal education, maternal and paternal diabetes, and birth weight. This persisted after further control for BMI at age 20 years and relative leg length. Additionally, among those not taking diabetes medications, earlier menarche [<11 years vs. 13-14 years (referent)] was associated with higher % glycated hemoglobin (p < 0.001), alanine aminotransferase (p < 0.001), triglycerides (p < 0.001), C-reactive protein (p = 0.003), waist circumference (p < 0.001), and BMI measured at baseline exam (p < 0.001). Conclusion These findings support the hypothesis that earlier menarche is associated with greater risk for adult diabetes and cardiometabolic disease in the Brazilian context. PMID:24438044

  20. Presentation of the Multimédia Game "Geolover" Concept, to Educational Enchancement of the Geolocical Heritage of the Following Regions: "Ilha do Fogo" (Cabo-Verde), Seridó (Brasil), Sabugal (Portugal) and Açores (Portugal)

    NASA Astrophysics Data System (ADS)

    Cabral, João; Gomes, Ana; Alfama, Vera; Oliveira, Sirlene; Pinharandas, Carlos; Fonseca, Pedro; Campos, José; Nobre, José

    2013-04-01

    "Geolover" - Presentation of the multimédia game concept, to educational enchancement of the geolocical heritage of the following regions: : "Ilha do Fogo" (Cabo-Verde), Seridó (Brasil), Sabugal and Açores (Portugal). "Geolover" is a multitouch game, played by four players simultaneously, identified by 4 mascots and using as sceneries, the four regions landscapes, aimed to the young people with ages between 8 and 12 years old. The main objective is value the geological heritage of the Ilha do Fogo (Cabo Verde), Seridó in State of Rio Grande do Norte (Brasil) , Sabugal in Beira Alta province (Portugal) and Arquipélago dos Açores (Portuguese autonomous region). These regions have a great geological heritage like volcanology, plutonic rocks, sedimentar formations, metamorphic, paleontologic, mineralogic, geomorphologic, hydric and mining resources. Such heritage is being used in the different regions has base of studies to senior scientists and were used to great scientific researches. The diversified and distinguished cultural heritage of these four regions is referenced and it's a value to the union of the students from these three continents, with the Portuguese language as communication tool. The variety of the geological wealth and cultural of these regions, results in the common objective of their valuing like Geoparks. His creation on these three regions is a strategy with a great relevance to the socio-economic development. With the creation of this game, we promote the union of these 3 countries from these three continents, the universal values of the heritage richness that are offered by our planet.

  1. Autor para correspondncia: Jos Roberto Moraes D'Almeida, Departamento de Engenharia de Materiais, Pontifcia Universidade Catlica do Rio de Janeiro, Rua Marqus de So Vicente, 225, Gvea, CEP: 22453-900, Rio de Janeiro, RJ, Brasil. E-mail: dalmeida@puc-rio.b

    E-print Network

    Paris-Sud XI, Université de

    , Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225, Gávea, CEP: 22453-900, Rio de Janeiro, RJ, Brasil. E-mail: dalmeida@puc-rio.br Avaliação do Efeito de um Óleo Parafínico Rio de Janeiro Jean-Pierre Habas Institut Pluridisciplinaire de Recherche sur l'Environnement et les

  2. Histórico da malacologia no Brasil

    Microsoft Academic Search

    Luiz Ricardo; L. Simone

    The written history of Brazilian malacology began before the times of Carl Linne, with the works of Anchieta and Seba. Post-Linnean works are numerous and classified in three periods. Period I: Linne to the very early 20th century; voluminous publications resulting from expeditions, mainly European. The Brazilian authors limited themselves to popularization writings. Period II: Rest of 20th century until

  3. Brasil-Senegal: Seminrio Internacional

    E-print Network

    18h | Auditório do RDC PUC-Rio - Campus Gávea Rua Marquês de São Vicente, 225, Gávea | Rio de Janeiro Baumann Burgos (PUC-Rio) A escola e os efeitos do lugar no Rio de Janeiro. #12;:00h Sessão de Abertura: Alocução do Reitor da PUC-Rio, Pe. Josafá Carlos de Siqueira SJ., do Decano do

  4. Memories of Astronomy Education in Brazil: Clippings from the Discourses of Interviewed Researchers on the Subject. (Spanish Title: Memorias de la Educación en Astronomía en Brasil: Recortes de los Discursos de Investigadores Entrevistados Acerca del Tema ) Memórias da Educação em Astronomia no Brasil: Recortes a Partir das Falas de Pesquisadores Entrevistados sobre o Tema

    NASA Astrophysics Data System (ADS)

    Iachel, Gustavo; Nardi, Roberto

    2014-12-01

    This paper presents a historical retrospective concerning data from a research in Astronomy Education in Brazil, after 1973. It was organized on the basis of the speech analysis of national researchers considered references in this field by their peers. Furthermore, it was elaborated on the basis of other studies from the areas of Science Education, Physics and Astronomy. This historical overview was developed in order to facilitate understanding of the contexts in which the interviewed researchers have developed professionally. Moreover, we attempted to recover the memory of the growing field of research in Astronomy Education in the country. We believe that the history presented can help those trying to understand the past in an attempt to resolve current and future demands. Se presenta en este artículo una retrospectiva histórica referente a datos provenientes de la investigación en enseñanza de la astronomía en el Brasil, después de 1973, organizada sobre la base del análisis de los discursos de los investigadores nacionales considerados referencias en este campo, y también en la lectura de las publicaciones en las áreas de Enseñanza de las Ciencias, Física y Astronomía. Este repaso histórico se desarrolló con el fin de facilitar la comprensión de los contextos en los que los investigadores entrevistados se han desarrollado profesionalmente. Por otra parte, se intentó recuperar la memoria del creciente campo de la investigación en Educación en Astronomía en el país. Creemos que el relato presentado puede contribuir a quien trata de comprender el pasado, en un intento de resolver las demandas actuales y futuras. Relata-se neste artigo uma retrospectiva histórica referente a dados provenientes de pesquisa em Educação em Astronomia no país, pós 1973, organizada com base na análise das falas de pesquisadores considerados referências nacionais nesse campo, como também na leitura de publicações das áreas de ensino de Ciências, Física e Astronomia. Tal panorama histórico foi desenvolvido com o intuito de favorecer nossa compreensão sobre os contextos nos quais os pesquisadores entrevistados se desenvolveram profissionalmente. Ademais, buscou-se recobrar a memória do crescente campo de pesquisa em Educação em Astronomia no país. Entendemos que o histórico apresentado possa contribuir para com os que buscam entender o passado na tentativa de solucionar demandas atuais e futuras.

  5. The association between mood and anxiety disorders, and coronary heart disease in Brazil: a cross-sectional analysis on the Brazilian longitudinal study of adult health (ELSA-Brasil)

    PubMed Central

    Kemp, Andrew H.; Brunoni, Andre R.; Nunes, Maria A.; Santos, Itamar S.; Goulart, Alessandra C.; Ribeiro, Antonio L.; Benseñor, Isabela M.; Lotufo, Paulo A.

    2015-01-01

    Background: Associations between major depressive disorder (MDD) and coronary heart disease (CHD) have been established, and these associations increase risk of future morbidity and mortality. Prior research has been carried out in high-income countries. Here we examine associations between the mood and anxiety disorders, and CHD in a large cohort at baseline from Brazil, a country facing a variety of challenges that may affect these associations. Methods: Participants included 15,105 civil servants aged 35 to 74 at baseline (2008–2010) from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). CHD (N = 721) included self-reported angina pectoris (n = 305), myocardial infarction (n = 259) and coronary revascularization (n = 239). Hierarchical logistic regression analyses were conducted to estimate odds ratios and confidence intervals. Results: Major findings indicate that comorbid MDD and anxiety disorders (n = 434) are associated with a threefold increase in CHD, MDD alone (n = 170) with a twofold increase in CHD, while generalized anxiety disorder alone (n = 1,394) and mixed anxiety and depression disorder (n = 1,844) – symptoms present, but diagnostic threshold not reached – are associated with a 1.5-fold increase in CHD, after full adjustment for covariates. Conclusion: The association with CHD is greatest in those with psychiatric comorbidity, while associations were also observed in MDD and generalized anxiety disorder without comorbidity. While findings are limited by the cross-sectional design of the study, given the known risks associated with comorbidity of the mood and anxiety disorders with CHD, findings reinforce the importance of comprehensive health assessment in Brazil. PMID:25762963

  6. Life Course Socioeconomic Position and C-Reactive Protein: Mediating Role of Health-Risk Behaviors and Metabolic Alterations. The Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)

    PubMed Central

    Camelo, Lidyane V.; Giatti, Luana; Neves, Jorge Alexandre Barbosa; Lotufo, Paulo A.; Benseñor, Isabela M.; Chor, Dóra; Griep, Rosane Härter; da Fonseca, Maria de Jesus Mendes; Vidigal, Pedro Guatimosim; Kawachi, Ichiro; Schmidt, Maria Inês; Barreto, Sandhi Maria

    2014-01-01

    Background Chronic inflammation has been postulated to be one mediating mechanism explaining the association between low socioeconomic position (SEP) and cardiovascular disease (CVD). We sought to examine the association between life course SEP and C-reactive protein (CRP) levels in adulthood, and to evaluate the extent to which health-risk behaviors and metabolic alterations mediate this association. Additionally, we explored the possible modifying influence of gender. Methods and Findings Our analytical sample comprised 13,371 participants from ELSA-Brasil baseline, a multicenter prospective cohort study of civil servants. SEP during childhood, young adulthood, and adulthood were considered. The potential mediators between life course SEP and CRP included clusters of health-risk behaviors (smoking, low leisure time physical activity, excessive alcohol consumption), and metabolic alterations (obesity, hypertension, low HDL, hypertriglyceridemia, and diabetes). Linear regression models were performed and structural equation modeling was used to evaluate mediation. Although lower childhood SEP was associated with higher levels of CRP in adult life, this association was not independent of adulthood SEP. However, CRP increased linearly with increasing number of unfavorable social circumstances during the life course (p trend <0.001). The metabolic alterations were the most important mediator between cumulative SEP and CRP. This mediation path accounted for 49.5% of the total effect of cumulative SEP on CRP among women, but only 20.2% among men. In consequence, the portion of the total effect of cumulative SEP on CRP that was mediated by risk behaviors and metabolic alterations was higher among women (55.4%) than among men (36.8%). Conclusions Cumulative SEP across life span was associated with elevated systemic inflammation in adulthood. Although health-risk behaviors and metabolic alterations were important mediators of this association, a sizable fraction of this association was not mediated by these factors, suggesting that other pathways might play a role, especially among men. PMID:25309988

  7. Future of alcohol fuels programs in Brasil

    NASA Astrophysics Data System (ADS)

    Carvalho, A. V., Jr.; Rechtschaffen, E.; Goldstein, L., Jr.

    An updating is given of the Brazilian National Alcohol Program's production and utilization achievements to date in the substitution of ethanol and methanol for imported oil products. A series of Eucalyptus forestry and processing-industry projections are made for fuel output and jobs creation that may be expected by the year 2000. With few exceptions, methanol produced from wood grown on poorer soils than can now be used for sugarcane substitute for oil products and result in jobs creation several orders of magnitude higher than petroleum fuels.

  8. Au Australia 307 Br Brasil 307

    E-print Network

    Miyashita, Yasushi

    (Reich)1945 E Ge.W Germany, Federal Republic of 307 Germany(Reich=1945 E Ge.E Germany, Democratic 307 Ph Philippine 307 Po Poland 307 Ru Rumania 307 Sw Sweden 307 UK United Kingdom 307 USA The United States of America 307 USA:DT:U1 E USA:DT:U1 Nixon administration - Ford administration (1969

  9. A Viso do Paraguai no Brasil ^=s==

    E-print Network

    Paris-Sud XI, Université de

    , a Guerra do Para- guai) da segunda metade do século XIX e das missões jesuíticas dos séculos anteriores da sociedade paraguaia ficou detida no passa- do, o da Grande Guerra (como é conhecida, no país/junho 2011 de litoral é uma configuração territorial única na região, já que a Bolí- via ­ país que hoje

  10. Medical slang in Rio de Janeiro, Brasil.

    PubMed

    Peterson, C

    1998-01-01

    The author analyzes medical slang in Rio de Janeiro based on the view of interactive or live metaphor proposed by such authors as Black and Ricoeur, applied to puns and other jokes from medical work, with the goal of unveiling what physicians mean by this linguistic register. The article classifies medical slang in three broad areas, pertaining to the physician's relations with professional training and knowledge, patients, and health care services. Comparing his empirical material with previous studies focusing on hospital slang for patients, the author identifies, in addition, a range of slang terms for health care services themselves. The article points to interfaces between medical slang and the Brazilian "health hypercrisis" identified by Schramm. PMID:9878893

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

    ERIC Educational Resources Information Center

    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;…

  12. TAXONOMIA ZOOLÓGICA NO BRASIL: ESTADO DA ARTE

    Microsoft Academic Search

    ANTONIO CARLOS MARQUES; CARLOS JOSÉ

    Brazil is a megadiverse developing country and the knowledge on the current situation of Brazilian taxonomy is a necessary step to establish future policies to deal with biodiversity. Certainly, the most important issue for the understanding of biodiversity is the installing capacity of taxonomists. In fact, little is known concerning the number of taxonomists, scientific production, and the problems faced

  13. Micoinseticidas e Micoacaricidas no Brasil: Como estamos?

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Mycoinsecticides and mycoacaricides can be defined as biopesticide products based on living propagules of entomopathogenic fungi developed for inundative and inoculative biological control of insects and mites. Based on recently published data on global use of entomopathogenic fungi and a proposal f...

  14. POTENCIAL HÍDRICO DO AQÜÍFERO GUARANI NO BRASIL

    Microsoft Academic Search

    Alessandra Troleis da Cunha; Edson Wendland

    Brazil contributes with 12% of the world total water resources, 80% of which being in the North Region, and the remaining 20% irregularly distributed through the country and attending 95% of the population. According to data from IBGE (1997), 61% of the population are partially provisioned by groundwater, São Paulo State being the largest user. Guarani Aquifer is the world

  15. PATRIMONIO CULTURAL SUBACUÁTICO EN BRASIL: PENSAMIENTOS VARIOS

    Microsoft Academic Search

    Gilson Rambelli

    The paper starts by discussing the main concepts relating to heritage. It then turns to underwater cultural heritage, particularly to the challenges of treasure hunting in Brazil. Underwater archaeology is considered as an archaeological endeavor, not an independent discipline, as a scholarly political activity, concerned with the menaces to underwater heritage.

  16. Ecological Adaptation of Wild Peach Palm, Its In Situ Conservation and Deforestation-Mediated Extinction in Southern Brazilian Amazonia

    PubMed Central

    Clement, Charles R.; Santos, Ronaldo P.; Desmouliere, Sylvain J. M.; Ferreira, Evandro J. L.; Neto, João Tomé Farias

    2009-01-01

    Background The Arc of Fire across southern Amazonia seasonally attracts worldwide attention as forests are cut and burned for agricultural expansion. These forests contain numerous wild relatives of native South American crops, such as peach palm. Methodology/Principal Findings Our prospecting expeditions examined critical areas for wild peach palm in the Arc of Fire in Mato Grosso, Pará, Maranhão and Tocantins, as well as areas not previously examined in Amazonas and Amapá states. Recent digitization of the RADAM Brasil project permitted comparison among RADAM's parataxonomists' observations, previous botanical collections and our prospecting. Mapping on soils and vegetation types enabled us to hypothesize a set of ecological preferences. Wild peach palm is best adapted to Ultisols (Acrisols) in open forests across the Arc of Fire and westward into the more humid western Amazonia. Populations are generally small (fewer than 10 plants) on slopes above watercourses. In northern Mato Grosso and southern Pará soybean fields and pastures now occupy numerous areas where RADAM identified wild peach palm. The controversial BR-163 Highway is already eroding wild peach palm as deforestation expands. Conclusions/Significance Many of these populations are now isolated by increasing forest fragmentation, which will lead to decreased reproduction via inbreeding depression and eventual extinction even without complete deforestation. Federal conservation areas are less numerous in the Arc of Fire than in other parts of Brazilian Amazonia, although there are indigenous lands; these conservation areas contain viable populations of wild peach palm and require better protection than they are currently receiving. Ex situ conservation of these populations is not viable given the relative lack of importance of domesticated peach palm and the difficulty of maintaining even economically interesting genetic resources. PMID:19238213

  17. The Scientific program with RIBRAS (Radioactive Ion Beams in Brasil)

    NASA Astrophysics Data System (ADS)

    Lichtenthäler, R.; Lépine-Szily, A.; Guimarães, V.; de Faria, P. N.; Mendes, D. R.; Pires, K. C. C.; Morcelle, V.; Benjamim, E. A.; Moro, A. M.; Hussein, M. S.; Arazi, A.; Barioni, A.; Condori, R. Pampa; Morais, M. C.; Assunção, M.; Nunẽz, J. Alcantara; Padron, I.; Gomes, P. R. S.; Camargo, O.; Otani, Y.; Leistenschneider, E.; Scarduelli, V.

    2009-06-01

    The Radioactive Ion Beams Facility (RIBRAS) is in operation since 2004 at the Pelletron Accelerator Laboratory of the University of São Paulo and consists of two superconducting solenoids capable of producing low energy secondary beams of light exotic nuclei. Measurements of the elastic scattering, breakup and transfer reactions with radioactive projectiles such as 6He, 8Li, 7Be on several targets have been performed. A review of the research program carried on along the last four years using the RIBRAS facility is presented.

  18. The mineral economy of Brazil--Economia mineral do Brasil

    USGS Publications Warehouse

    Gurmendi, Alfredo C.; Barboza, Frederico Lopes; Thorman, Charles H.

    1999-01-01

    This study depicts the Brazilian government structure, mineral legislation and investment policy, taxation, foreign investment policies, environmental laws and regulations, and conditions in which the mineral industry operates. The report underlines Brazil's large and diversified mineral endowment. A total of 37 mineral commodities, or groups of closely related commodities, is discussed. An overview of the geologic setting of the major mineral deposits is presented. This report is presented in English and Portuguese in pdf format.

  19. REE MINERALS IN CATALO II, GOIAS, BRASIL Essaid BILAL1

    E-print Network

    Boyer, Edmond

    pyrochlore and ground water are generally consistent with relatively low pH, low activities of Na+ , Ca2+ , F of carbonate and CO3 2- / PO4 3- ratio have played an important role in the formation of REE-carbonate-phosphates- and activities of Ti and Na specially in the carbonatite. This feature explains the low enrichment in phosphate

  20. Aspectos epidemiológicos da tuberculose na população indígena Suruí, Amazônia, Brasil

    Microsoft Academic Search

    Paulo Cesar Basta; Carlos E. A. Coimbra Junior; Ana Lúcia Escobar; Ricardo Ventura Santos

    2004-01-01

    Tuberculosis persists as a serious public health problem in Brazil. Prevalence rates are alarming in certain social groups, including indigenous peoples. This article presents an epidemiological analysis of records for the Suruí Indians available at the Tuberculosis Control Program in the Municipality of Cacoal, Rondônia. The study includes a descriptive statistical analysis of cases reported from 1975 to 2002. There

  1. Dangerous Fog Analyses and Forecast in the Maceio Airport, Brasil

    NASA Astrophysics Data System (ADS)

    Fedorova, N.; Silva, A.; Levit, V.; Santos, E.

    2010-07-01

    A small airplane fatal accident has occurred near Maceio Airport, on the coastal region on 26 July 2007. Low visibility in the intensive fog has provoked this accident. Weather forecast analysis, published in the local and central Brazilian newspapers during 2007, showed fog forecast absence during whole year. A study of the fog formation causes was elaborated using the high and low resolution satellite data, radar data, different products of NCEP reanalysis data and high resolution regional MM5 model simulation. The trade winds with a weak cyclonic curvature at the low levels have generated the humidity convergence at the superficial layers up to 850hPa on the coastal region. An anticyclonic circulation existence at the middle and higher levels and weak ascendant motion (by NCEP data) have support a weak convection development. The low levels clouds development on the continental region and convection development over ocean were confirmed by the radar and satellite data. A thermal inversion near surface level (up to 150m) and descendent movement at the middle and high levels were identified by MM5 model. Fog formation was simulated by PAFOG model. The conventional airport observations have shown the minimal visibility of 200m between 4 and 7a.m. Moreover visibility less than 1000m between 1 and 8a.m. with the minimal visibility of 213m was simulated by PAFOG model.

  2. Mercado de TV Paga no Brasil: Competição Normal Ou Infracionária?

    Microsoft Academic Search

    Silvinha Pinto Vasconcelos

    2003-01-01

    The antitrust authorities have had difficulties to proceed since there are both ambiguity and asymmetric information on firms’ actions. In others words, many controversy appears from the analysis of the reasons and effects of the firms’ specific conduct. This can be seen in the recent DTH Brazilian case conduced by the national antitrust authority (CADE). Some limitations in this case

  3. Briófitas de praias do Estado de São Paulo, Brasil

    Microsoft Academic Search

    Sandra Regina Visnadi

    2004-01-01

    Palavras-chave: hepáticas, lista, musgos, praias, taxonomia ABSTRACT - (Bryophytes from sea-shores of the São Paulo State, Brazil). This paper is a list of the bryophytes found in sandy and saline conditions under action of waves and winds of sea-shores in Ubatuba, Bertioga and Peruíbe Municipalities, São Paulo Stat e, Brazil. The group does not exist in marine environments. The material

  4. 20 a 23 de Maio 2012 RIO DE JANEIRO -BRASIL

    E-print Network

    are represented. This includes: hydroelectric plants with their storage capacity and gas-oil, fuel-oil, bio an integration time-step of one hour with the simulator SimSEE. In this simulation all power plants in Uruguay plants. To validate the results, simulations were performed using a model with a time step of one hour

  5. Curriculum Studies in Brasil: A Study of the Teaching Practice.

    ERIC Educational Resources Information Center

    Marcondes, Maria Ines; Tura, Maria de Lourdes Rangel; de Macedo, Elizabeth Fernandes

    This study analyzes how undergraduate university teachers are thinking in the classroom about the theoretical and practical contents related to the subject called "Curriculum Studies." The study focuses on the aspects of the theory-practice relationship, the idea of curriculum, and the theoretical references used by the undergraduate teachers. The…

  6. Queda dos homicídios em São Paulo, Brasil: uma análise descritiva

    PubMed Central

    Peres, Maria Fernanda Tourinho; Vicentin, Diego; Nery, Marcelo Batista; de Lima, Renato Sérgio; de Souza, Edinilsa Ramos; Cerda, Magdalena; Cardia, Nancy; Adorno, e Sérgio

    2012-01-01

    Objetivo Descrever a evolução da mortalidade por homicídios no Município de São Paulo segundo tipo de arma, sexo, raça ou cor, idade e áreas de exclusão/inclusão social entre 1996 e 2008. Métodos Estudo ecológico de série temporal. Os dados sobre óbitos ocorridos no Município foram coletados da base de dados do Programa de Aprimoramento das Informações sobre Mortalidade, seguindo a Classificação Internacional de Doenças, Décima Revisão (CID-10). Foram calculadas as taxas de mortalidade por homicídio (TMH) para a população total, por sexo, raça ou cor, faixa etária, tipo de arma e área de exclusão/inclusão social. As TMH foram padronizadas por idade pelo método direto. Foram calculados os percentuais de variação no período estudado. Para as áreas de exclusão/inclusão social foram calculados os riscos relativos de morte por homicídio. Resultados As TMH apresentaram queda de 73,7% entre 2001 e 2008. Foi observada redução da TMH em todos os grupos analisados, mais pronunciada em homens (?74,5%), jovens de 15 a 24 anos (?78,0%) e moradores de áreas de exclusão social extrema (?79,3%). A redução ocorreu, sobretudo, nos homicídios cometidos com armas de fogo (?74,1%). O risco relativo de morte por homicídio nas áreas de exclusão extrema (tendo como referência áreas com algum grau de exclusão social) foi de 2,77 em 1996, 3,9 em 2001 e 2,13 em 2008. Nas áreas de alta exclusão social, o risco relativo foi de 2,07 em 1996 e 1,96 em 2008. Conclusões Para compreender a redução dos homicídios no Município, é importante considerar macrodeterminantes que atingem todo o Município e todos os subgrupos populacionais e microdeterminantes que atuam localmente, influenciando de forma diferenciada os homicídios com armas de fogo e os homicídios na população jovem, no sexo masculino e em residentes em áreas de alta exclusão social. PMID:21390415

  7. Situation Reports--Bahamas, Brasil, Guatemala, Netherlands Antilles (Curacao), Uruguay.

    ERIC Educational Resources Information Center

    International Planned Parenthood Federation, London (England).

    Data relating to population and family planning in four foreign countries are presented in these situation reports. Countries included are Bahamas, Guatemala, Netherlands Antilles (Curacao), and Uruguay. Information is provided under two topics, general background and family planning situation, where appropriate and if it is available. General…

  8. Resultados do desenvolvimento de um propulsor à plasma no Brasil

    NASA Astrophysics Data System (ADS)

    Ferreira, I. S.; Ferreira, J. L.

    2003-08-01

    Uma das partes mais importantes de um satélite é o controle de atitude do mesmo. E se tratando de um satélite científico, a atenção para este sistema deve ser redobrada. Uma possibilidade atraente para executar esta tarefa é a propulsão elétrica. Aqui, mostraremos resultados obtidos pelo propulsor à plasma PHALL-01, desenvolvido na Universidade de Brasília entre 2000 e 2003. Este é derivado do propulsor russo SPT-100 (Stationary Plasma Thruster), mas com o emprego inovador de um arranjo de imãs permanentes como fonte do campo magnético, este último o agente da aceleração do plasma. Esta alteração foi motivada pelo objetivo de que o mesmo operasse com o mínimo de potência elétrica. A partir da formulação teórica do mecanismo de aceleração, tendo como base as equações da magnetohidrodinâmica, pode-se obter vínculos sob os quais o propulsor pudesse ser construído. O mais forte destes é o que dita a topologia do campo magnético. Sendo assim, foram realizadas simulações computacionais, que definiram a geometria do propulsor. Após construído, este foi diagnosticado usando-se sondas de Langmuir e analisadores de energia. Como resultados, obtivemos a distribuição espacial da temperatura, densidade e potencial do plasma, bem como a distribuição angular do feixe produzido pelo mesmo em vários regimes de operação. O espectro de energia do feixe de plasma também foi medido, indicando íons de até 560eV. Combinando estes resultados, calculou-se o empuxo do propulsor: 84mN; e o impulso específico: 1083s. Estes demonstram que o mesmo estará qualificado, num futuro próximo, para o emprego no controle de atitude de satélites científicos, ou até mesmo como parte do conjunto propulsor primário, responsáveis pela transferência de órbitas.

  9. Geografias do trabalho escravo contemporneo no Brasil Herv Thry

    E-print Network

    Paris-Sud XI, Université de

    no campo brasileiro, transformando em mapas os dados disponíveis sobre resgate de trabalhadores sintéticos de risco de presença de escravos e de vulnerabilidade ao aliciamento. Espera-se assim contribuir inserido, os dados2 disponíveis sobre o fenômeno foram transformados em mapas, especialmente os dados de

  10. Democracia e participação na gestão dos recursos hídricos no Brasil

    Microsoft Academic Search

    Pedro Roberto Jacobi; Fabiana Barbi

    This article analyzes the strengthening of public space and the opening of public management to participation of civil society in the preparation of public policies. It also analyzes the always complex and contradictory institutionalization of innovative practices that establish ruptures with the predominant dynamic in areas and sectors of administration, specifically in environmental management. It analyzes the shared public management

  11. Constraining depth of anisotropy in the Amazon region (Northern Brasil)

    NASA Astrophysics Data System (ADS)

    Bianchi, Irene; Willy Corrêa Rosa, João; Bokelmann, Götz

    2014-05-01

    Seismic data recorded between November 2009 and September 2013, at the permanent station PTGA of the Brazilian seismic network were used to constrain the depth of anisotropy in the lithosphere beneath the station. 90 receiver functions (RF) have been computed, covering the backazimuthal directions from 0° to 180°. Both radial (R) and transverse (T) components of the RF contain useful information about the subsurface structure. The isotropic part of the seismic velocity profile at depth mainly affects the R-RF component, while anisotropy and dipping structures produce P-to-S conversion recorded on the T-RF component (Levin and Park, 1998; Savage, 1998). The incoming (radially polarized) S waves, when passing through an anisotropic crust, splits and part of it is projected onto the transverse component. The anisotropy symmetry orientations (?) can be estimated by the polarity change of the observed phases. The arrival times of the phases is related to the depth of the conversion. Depth and ? are estimated by isolating phases at certain arrival times. SKS shear-wave splitting results from previous studies in this area (Krüger et al., 2002, Rosa et al., 2014), suggest the presence of anisotropy in the mantle with orientation of the fast splitting axis (about E-W) following major deep tectonic structures. The observed splitting orientation correlates well with the current South America plate motion (i.e. relative to mesosphere), and with observed aeromagnetic trends. This similarity leaves open the possibility of a linkage between the upper mantle fabric imaged by shear wave splitting analysis and the lower crustal structure imaged by aeromagnetometry. In this study we unravel, from RF data, two layers in which anisotropy concentrates, i.e. the lower crust and the upper mantle. Lower crustal and upper mantle anisotropy retrieved by RFs give some new hints in order to interpret the previously observed anisotropic orientations from SKS and the aeromagnetic anomalies.

  12. [Neurological manifestations in riverine populations from areas exposed to mercury in the Brazilian Amazon].

    PubMed

    Khoury, Eliana Dirce Torres; Souza, Givago da Silva; Silveira, Luiz Carlos de Lima; Costa, Carlos Araújo da; Araújo, Amélia A de; Pinheiro, Maria da Conceição Nascimento

    2013-11-01

    This study evaluated current levels of mercury exposure and sensory symptoms in adults from three riverine communities in Pará State, Brazil, two of which located in the Tapajós River basin and one in the Tocantins basin. Participants in this study included 78 residents in Barreiras (Tapajós), 30 in São Luiz do Tapajós (Tapajós), and 49 in Furo do Maracujá (Tocantins). Total hair mercury concentrations were quantified by atomic absorption spectrophotometry, and neurological evaluation was conducted by routine examination. Mercury concentrations in the Tapajós communities were higher than those in the Tocantins (p < 0.01). Evaluation of neurological changes showed no significant difference between the communities in exposed areas and control areas for the changes observed by conventional neurological examination, except for gait deviation (p < 0.05). The study concludes that despite the mercury exposure levels, there was a low frequency of sensory alterations according to conventional neurological testing. PMID:24233045

  13. El NioSouthern oscillation and the climate, ecosystems and rivers of Amazonia

    Microsoft Academic Search

    Jonathan A. Foley; Aurelie Botta; Michael T. Coe; Marcos Heil Costa

    2002-01-01

    The El NioSouthern Oscillation (ENSO) phenomenon is one of the dominant drivers of environmental variability in the tropics. In this study, we examine the connections between ENSO and the climate, ecosystem carbon balance, surface water balance, and river hydrology of the Amazon and Tocantins river basins in South America. First we examine the climatic variability associated with ENSO. We analyze

  14. Ecology of Anolis nitens brasiliensis in Cerrado Woodlands Laurie J. Vitt1

    E-print Network

    Shepard, Don

    that expansion and contraction of the Amazon rainforest during Pleistocene glaciations isolated populations habitat in Tocantins state, Brazil. Most lizards were found on tree trunks or leaf litter in non on the ecology of the Amazonian rainforest members of the Anolis nitens complex (Hoogmoed, 1973; A´ vila

  15. Rivers, refuges and population divergence of fire-eye antbirds (Pyriglena) in the Amazon Basin.

    PubMed

    Maldonado-Coelho, M; Blake, J G; Silveira, L F; Batalha-Filho, H; Ricklefs, R E

    2013-05-01

    The identification of ecological and evolutionary mechanisms that might account for the elevated biotic diversity in tropical forests is a central theme in evolutionary biology. This issue is especially relevant in the Neotropical region, where biological diversity is the highest in the world, but where few studies have been conducted to test factors causing population differentiation and speciation. We used mtDNA sequence data to examine the genetic structure within white-backed fire-eye (Pyriglena leuconota) populations along the Tocantins River valley in the south-eastern Amazon Basin, and we confront the predictions of the river and the Pleistocene refuge hypotheses with patterns of genetic variation observed in these populations. We also investigated whether these patterns reflect the recently detected shift in the course of the Tocantins River. We sampled a total of 32 individuals east of, and 52 individuals west of, the Tocantins River. Coalescent simulations and phylogeographical and population genetics analytical approaches revealed that mtDNA variation observed for fire-eye populations provides little support for the hypothesis that populations were isolated in glacial forest refuges. Instead, our data strongly support a key prediction of the river hypothesis. Our study shows that the Tocantins River has probably been the historical barrier promoting population divergence in fire-eye antbirds. Our results have important implications for a better understanding of the importance of large Amazonian rivers in vertebrate diversification in the Neotropics. PMID:23442128

  16. Ann. Geophys., 24, 21912200, 2006 www.ann-geophys.net/24/2191/2006/

    E-print Network

    Paris-Sud XI, Université de

    Ann. Geophys., 24, 2191­2200, 2006 www.ann-geophys.net/24/2191/2006/ © European Geosciences Union, Tocantins, Brazil 2Universidade do Vale do Para´iba (UNIVAP), S~ao Jos´e dos Campos, S~ao Paulo, Brazil

  17. [Socioeconomic and geographic constraints to access mammography in Brasil, 2003-2008].

    PubMed

    de Oliveira, Evangelina Xavier Gouveia; Pinheiro, Rejane Sobrino; Melo, Enirtes Caetano Praates; Carvalho, Marilia Sá

    2011-09-01

    This study examined the effect of population characteristics and geographic location of residences and services on the odds of receiving a mammography in 2003 and 2008. Patterns of mammography use were analyzed using data from the Health Supplements of the National Household Sample Survey for women aged over 25, using prevalence ratios, and for women over 40 using multivariate logistic regression, correcting for complex sample design effects. In 2003, 54.6% of women of 50-69 years of age reported having had a mammography, in 2008, 71.5%. The odds are higher for those 50 to 69 years old, and increase with family income, education, being married, having consulted a doctor and having health insurance. Living in a metropolitan area trebles the chance of mammography. Compared to the Northern region, residents in all other regions have greater odds, greater distances decrease the odds. Coverage increased in the age range targeted by national policy, and inequalities due to income and education on access to mammography were reduced but regional convergence was not marked. Increased access seems to relate more to policies of income distribution and social inclusion, and to the availability of the examination in the Unified Health System, than to an increasing number of mammography units. PMID:21987309

  18. Primeiro registro documentado do gavião-pega-macaco, Spizaetus tyrannus, para o estado do Ceará, Brasil

    Microsoft Academic Search

    Ciro Albano; Weber Girão; Thieres Pinto

    First documented record of the Black Hawk-Eagle Spizaetus tyrannus to the state of Ceará, Brazil. The Black Hawk-Eagle has a wide but discontinuous range along Latin American rainforests. We present the first documented record of the species to the state of Ceará, in a montane moist forest enclave surrounded by semi-arid lowlands. The record was documented by a tape recording

  19. PREDACAo DE NINHOS ARTIFICIAIS EM FRAGMENTOS DE MATAS DO BRASIL CENTRAL

    Microsoft Academic Search

    Celine Melo; Miguel Angelo Marini

    Habitat fragmentation has some negative consequences to bird populations, including high nest predation rates due to the access of predators to the interior of small fragments. Qur purpose was to test the hypothesis that nest predation rates is inversely related to forest fragment size in forests at 'Tri~ngulo Mineiro', Minas Gerais state, Brazil. We conducted two experiments with artificial nests,

  20. Study on target interactions in emulsion chamber - Brasil-Japan emulsion chamber collaboration

    NASA Astrophysics Data System (ADS)

    Ballester, M.; Santos, C.; Bellandi Filho, J.; Chinellato, J. A.; Dobrigkeit, C.; Lattes, C. M. G.; Marques, A.; Menon, M. J.; Navia, C. E.; Sawayanagi, K.

    Experimental results are presented from observations of 80 target nuclear interactions where the total gamma-ray energy is greater than or equal to 20 TeV. Evidence is presented for the existence of two types of interactions; the interpretation is given on the basis of a fire-ball model. Two-story emulsion chambers exposed at Mount Chacaltaya, in Bolivia (5,220 m above sea level), are used. Gamma rays from nuclear interactions in the target layer of petroleum pitch (1/3 of the nuclear mean free path in thickness) are detected through observations of the electron showers generated by them in the lower chamber

  1. ROBÓTICA EDUCATIVA: COMPETÊNCIAS CURRICULARES E EPISTEMOLOGIA NA FORMAÇÃO INICIAL DO EDUCADOR NO BRASIL

    Microsoft Academic Search

    Flavio Campos

    The educational robotic is growing in the last years as a different learning environment. All around the world this environment has been in evidence in the use of real new technologies in learning-teaching of different subjects. In this new environment, the educator established an important position ahead of a challenge that allows students to be into experience of knowledge construction

  2. Rua Marqus de So Vicente, 255 Gvea Rio de Janeiro RJ-Brasil 22451-900

    E-print Network

    comunidade. A graduação em biologia funciona em área arborizada, ao lado do Parque Apresentação da Cidade e desafios contemporâneos. O Centro de Biologia Graziela Maciel Barroso, onde as aulas práticas acontecem desenvolvidas pesquisas voltadas à conservação biológica e sustentabilidade. A biologia é um campo dinâmico e em

  3. Diversity of low chill peaches from Asia, Brasil, Europe and the USA

    Technology Transfer Automated Retrieval System (TEKTRAN)

    One hundred fifty-five peach (Prunus persica) cultivars, from Asia, Brazil, Europe, and the USA, were examined using eleven SSRs to study the genetic relationships among low chill as compared to high chill peach germplasm. Data was analyzed by NTSYSpc to form a similarity matrix using Nei and Li’s ...

  4. A Rede de Apoio Social e Afetivo de Adolescentes Institucionalizados no Sul do Brasil

    Microsoft Academic Search

    Aline Cardoso Siqueira; Mariana Kraemer Betts; Débora Dalbosco Dell' Aglio

    2006-01-01

    The goal of this study was to examine the perception of social and emotional support network in institutionalized adolescents, considering the changes on relationships caused by the situation of institutionalization. The participants were 35 adolescents of both sexes, with age from 11 to 16 years. Five Field Map, which allows evaluating structure and function of the support network, and semi-structured

  5. Constituio Cidad de 1988 determinou que a democracia no Brasil seja exercida de

    E-print Network

    Rosa, Ricardo M. S.

    : (21) 2232-2970 Instituto de Neurologia Deolindo Couto (INDC) Av. Venceslau Brás, 95 - Botafogo Campus.ipub.ufrj.br Av. Venceslau Brás, 71, fundos - Botafogo Campus da Praia Vermelha. Cep: 22290-140 Tel: (21) 2295

  6. Parasitismo intestinal em uma aldeia indígena Parakanã, sudeste do Estado do Pará, Brasil

    Microsoft Academic Search

    Rogério dos Anjos Miranda; Fábio Branches Xavier; Raimundo Camurça de Menezes

    1998-01-01

    To determine the occurrence and epidemiological aspects of intestinal parasites among the Parakanã indigenous people in the Paranatinga settlement (in the eastern Amazon Region), parasitological tests were performed in April 1992 and February 1995. One fresh stool specimen was obtained and immediately processed using the Hoffman and direct methods. Some 126 samples were obtained in April 1992 (from a total

  7. Avaliação antropométrica de adolescentes Kamayurá, povo indígena do Alto Xingu, Brasil Central (2000-2001)

    Microsoft Academic Search

    Miriam A. Sampei; Eduardo Nozaki Canó; Ulysses Fagundes; Evandro E. de Souza Lima; Douglas Rodrigues; Dirce Maria Sigulem; Roberto G. Baruzzi

    2007-01-01

    Despite the proximity between indigenous groups in the Upper Xingu Region and Brazilian nation- al society, studies have shown adequate weight- for-height and low height-for-age in indigenous children. Little is known about the nutritional status of indigenous adolescents. The present study aimed to evaluate the nutritional status of Kamayurá adolescents. Anthropometric vari- ables were collected from a sample of 65

  8. Nutrição e saúde infantil em uma comunidade indígena Teréna, Mato Grosso do Sul, Brasil

    Microsoft Academic Search

    Dulce Lopes Barboza Ribas; Alfredo Sganzerla; José Roberto Zorzatto; Sonia Tucunduva Philippi

    2001-01-01

    This paper describes the health and nutritional situation of South American Indian children from a Teréna community, characterizing their nutritional status, food consumption, and socioeconomic and environmental conditions. The sample included 100 children, ranging from 0 to 59 months of age and living in Aldeia Córrego do Meio, Mato Grosso do Sul. Prevailing nutritional deficits were: 8.0% for the weight-for-age

  9. Fatores de risco para poliparasitismo intestinal em uma comunidade indígena de Pernambuco, Brasil

    Microsoft Academic Search

    Annick Fontbonne; Eduardo Freese-de-Carvalho; Moab Duarte Acioli; Geisa Amorim de Sá; Eduarda Angela Pessoa Cesse

    2001-01-01

    An investigation into the ethno-epidemiological profile of the Pankararu indigenous group in the State of Pernambuco, Brazil, identified multiple intestinal parasites in nearly all members of the community. To detect possible environmental risk factors, we used the data base from a previous survey to test relations between daily living conditions (housing, sanitation, wa- ter supply and treatment, and garbage disposal)

  10. Geração e transmissão da energia elétrica: impacto sobre os povos indígenas no Brasil

    Microsoft Academic Search

    Sergio Koifman

    2001-01-01

    This paper presents an overview of the effects of electric power generation and trans- mission on indigenous communities in Brazil. According to data from FUNAI (the Brazilian gov- ernment's Board of Indian Affairs), there are 156 cases of direct impact, present or future, of the electric power sector on Indian settlements geographically distributed throughout Brazil, 65% of which are located

  11. Zooarqueologia dos mamferos aquticos e semi-aquticos da Ilha de Santa Catarina, sul do Brasil

    E-print Network

    Simões-Lopes, Paulo César

    , moluscos e vegetais (SCHEEL-YBERT 2000). Os cetáceos em especial eram utilizados como fonte de alimento no processamento do animal, novas formas de distribuição do produto dentro das comunidades, economia e relação

  12. Ocorrência de Puma concolor (Linnaeus) (Felidae, Carnivora) em áreas de vegetação remanescente de Santa Catarina, Brasil

    Microsoft Academic Search

    Marcelo Mazzolli

    1993-01-01

    PRESENCE OF PUMA CONCOLOR (LINNAEUS) (FELIDAE, CARNIVORA) ON REMNANT HABITATS IN SANTA CATARINA, BRAZIL. Several reports on puma (Puma concolor) have been done in the State of Santa Catarina, Southern Brazil, most of them in remnant original habitats above 800 meters. These records show a thight relationship between the puma with the altitude and mostly with the habitat quality. In

  13. Leishmaniose tegumentar americana humana e canina no Município de Mariluz, Estado do Paraná, Brasil

    Microsoft Academic Search

    Maria Valdrinez Campana Lonardoni; Thaís Gomes Verzignassi Silveira; Waneska Alexandra Alves; Ana Nilce Silveira Maia-Elkhoury; Umberto Assis Membrive; Norberto Assis Membrive; Gesse Rodrigues; Nélio Reis; Paulo Donizete Zanzarini; Edna Ishikawa; Ueslei Teodoro

    2006-01-01

    An outbreak of American cutaneous leishmani- asis was reported in 2002 in Mariluz, northwest- ern Paraná State, Brazil. Of 38 humans who were investigated, four had healed lesions, ten showed lesions in the healing process, and 24 had active lesions. Of the 126 dogs, 20 (15.9%) presented suggestive lesions and 24 (19%) had positive se- rology. Parasites isolated from two

  14. Biofuel do Brasil? - Impact of Multinational Biofuel Mandates on Agri-food Trade

    Microsoft Academic Search

    Martin Banse; Franziska Junker; Anne Gerdien Prins; Elke Stehfest; Andrzej A. Tabeau; Geert B. Woltjer; Hans van Meijl

    2012-01-01

    This paper analyzes the consequences of enhanced biofuel production in regions and countries of the world that have announced plans to implement or expand on biofuel policies. The analysis considers not only mandatory blending targets for transportation fuels, but also voluntary ones. The chosen quantitative modeling approach is two-fold: it combines a multi-sectoral economic model (LEITAP) with a spatial bio-physical

  15. Estudo químico ambiental do rio Murucupi - Barcarena, PA, Brasil, área impactada pela produção de alumínio

    Microsoft Academic Search

    Simone de Fátima Pereira; Maurício Araújo de Lima; K'Ellen Heloizy Freitas; Cleide Samara Mescouto; Augusto Fonseca Saraiva

    2007-01-01

    The present work evaluates the chemical conditions of the Murucupi river with relationship to the physical-chemical parameters and the presence of chemical elements in the water and their correlations among themselves. The Murucupi river is located in the amazon region close to the aluminum production area. 13 points were selected along the river. the Macroelements, microelements, trace elements (Ca, Mg,

  16. Lignin phenols used to infer organic matter sources to Sepetiba Bay - RJ, Brasil

    NASA Astrophysics Data System (ADS)

    Rezende, C. E.; Pfeiffer, W. C.; Martinelli, L. A.; Tsamakis, E.; Hedges, J. I.; Keil, R. G.

    2010-04-01

    Lignin phenols were measured in the sediments of Sepitiba Bay, Rio de Janeiro, Brazil and in bedload sediments and suspended sediments of the four major fluvial inputs to the bay; São Francisco and Guandu Channels and the Guarda and Cação Rivers. Fluvial suspended lignin yields (?8 3.5-14.6 mgC 10 g dw -1) vary little between the wet and dry seasons and are poorly correlated with fluvial chlorophyll concentrations (0.8-50.2 ?gC L -1). Despite current land use practices that favor grassland agriculture or industrial uses, fluvial lignin compositions are dominated by a degraded leaf-sourced material. The exception is the Guarda River, which has a slight influence from grasses. The Lignin Phenol Vegetation Index, coupled with acid/aldehyde and 3.5 Db/V ratios, indicate that degraded leaf-derived phenols are also the primary preserved lignin component in the bay. The presence of fringe Typha sp. and Spartina sp. grass beds surrounding portions of the Bay are not reflected in the lignin signature. Instead, lignin entering the bay appears to reflect the erosion of soils containing a degraded signature from the former Atlantic rain forest that once dominated the watershed, instead of containing a significant signature derived from current agricultural uses. A three-component mixing model using the LPVI, atomic N:C ratios, and stable carbon isotopes (which range between -26.8 and -21.8‰) supports the hypothesis that fluvial inputs to the bay are dominated by planktonic matter (78% of the input), with lignin dominated by leaf (14% of the input) over grass (6%). Sediments are composed of a roughly 50-50 mixture of autochthonous material and terrigenous material, with lignin being primarily sourced from leaf.

  17. GEOQUÍMICA DE ELEMENTOS-TRAÇO EM SÓLIDOS EM SUSPENSÃO NO ALTO RIO MADEIRA, RONDÔNIA, BRASIL

    Microsoft Academic Search

    J. P. O. Gomes; E. L. Nascimento; W. R. Bastos; J. V. E. Bernardi; L. D. Lacerda

    2009-01-01

    The objective this work is to evaluate the suspended solids load and the trace elements concentrations in suspended solids (Cd, Cr, Cu, Zn, Pb, Fe, Co, Mn and Hg) through principal components analysis (PCA) in the Upper Madeira River and some of its tributaries. The Upper Madeira River presents a natural flow of trace elements except for the Hg, which

  18. Perfil perinatal dos recém-nascidos de um hospital universitário da região Sul do Brasil

    Microsoft Academic Search

    José Aparecido Granzotto

    Introduction: We have analyzed the data concerning the delivery of 766 newborns at the maternity ward of a school hospital in order to assess the perinatal conditions surrounding all births, with an emphasis on gestational age, birth weight, mode of delivery, birth conditions, and childbirth and newborn care. The study also aimed at identifying such pregnancy-related maternal variables as more

  19. Impactos do necrochorume nas águas subterrâneas do cemitério de Santa Inês, Espírito Santo, Brasil.8

    Microsoft Academic Search

    Dérika F Neira; Vilma R Terra; Rodrigo Pratte-Santos; Roberto S Barbiéri

    To evaluate the impact of leachate components from aquifer sheets in Santa Inês cemetery by means of analyses of its physical parameters, chemical and microbiological properties of the water from monitoring wells. Proposing adequate methods and standards presented by conservationist measures and laws. Two campaigns were realized in five monitoring wells, in the area of Santa Inês cemetery. These points

  20. coleo explorando o ensino o brasil e o meio ambiente antrtico

    E-print Network

    TECNOLOGIA (CNPq) Erney Felício Plessmann de Camargo PRESIDENTE DO FUNDO NACIONAL DE DESENVOL- VIMENTO DA-1115 http://www.mma.gov.br MINISTÉRIO DA CIêNCIA E TECNOlOgIA CONSElhO NACIONAl DE CIêNCIA E TECNOlOgIA

  1. GESTIÓN AMBIENTAL EN EL SECTOR DE ALIMENTOS Y BEBIDAS EN LA COSTA DE ARACAJU (Sergipe - Brasil)

    Microsoft Academic Search

    Vera Lúcia Novaes Provinciali

    2009-01-01

    Environmental Management of the Food and Beverage Sector at the Arajau Coast (Brazil). The growth of the foods and beverage sector at the Aracaju's coast shows that enterprises pay more attention to the service quality and the environment. This study reveals the way in which the environmental management is perceived bay businessmen and consumers. A survey was made using exploratory

  2. Mapas de irradiação solar para o Brasil - Resultados do Projeto SWERA

    Microsoft Academic Search

    Fernando Ramos Martins; Enio Bueno Pereira; Samuel Luna de Abreu

    2005-01-01

    The SWERA project is an international project financed by GEF\\/UNEP which aims at providing a consistent and easily accessible database to increase confidence levels of investors and influence decision centers to foster the insertion of renewable energies on the energy matrix of selected pilot countries. The project is now at the stage of formatting information, validating of energy resource models,

  3. DISTRIBUIÇÃO E COMPOSIÇÃO DO ICTIOPLÂNCTON NA QUEBRA DE PLATAFORMA DO SUL DO BRASIL

    Microsoft Academic Search

    BÁRBARA CRISTIE FRANCO

    Distribuition and composition of Ichthyoplankton in the Southern Brazilian Shelf Break Despite the fact that some of the most important fishery resources of Brazil are found in its southern continental margin, little is known about the ichthyoplankton ecology of the shelf break region. This paper aims at enhancing this knowledge by describing the ichthyoplankton distribuition and composition during December 1997

  4. REALCES DE LA INTEGRACIÓN DEL CUENCAS HIDROGRÁFICAS PCJ - FEDERAL Y ESTATAL (BRASIL)

    Microsoft Academic Search

    José Roberto Fumach; Francisco Carlos Castro Lahóz; Dalto Favero Brochi

    Since the official beginning of operations of the entire Cantareira System, a complex of four interconnected reservoirs, three of which (Jaguari\\/Jacareí, Cachoeira and Atibainha) are located at the fountainheads of the hydrographic basins of the Piracicaba River and the other (Paiva Castro) in the basin of the Alto Tietê River, and which together guarantee the supply of 50% (31 m³\\/s)

  5. USUÁRIO OU CIDADÃO? REFLEXÕES LIVRES SOBRE A EXPERIÊNCIA DE GESTÃO DE RECURSOS HÍDRICOS NO BRASIL

    Microsoft Academic Search

    Antônio Augusto; Rossotto Ioris

    Resumo - O grande desafio neste início de século, para uma gestão efetiva e sustentável de recursos hídricos, é considerar o contexto social e político que condiciona as ações do Estado e as possibilidades de sucesso de qualquer política pública. O país tem perdido tempo e dinheiro discutindo como se chegar a um modelo ideal de gestão de águas, sem

  6. CAMBIO CLIMÁTICO Y TURISMO Posibles consecuencias en los destinos turísticos de Bahía - Brasil

    Microsoft Academic Search

    Gustavo da Cruz

    Resumen: El calentamiento global está modificando el clima en todos los continentes. Grandes masas de hielo se están derritiendo y están aumentando el nivel medio del mar, amenazando las islas y las zonas costeras. Se están produciendo con frecuencia huracanes y ciclones intensos; las temperaturas mínimas han aumentado, así como las sequías e inundaciones en diversos destinos turísticos. En este

  7. As mudanças no ambiente empresarial e o encino da logística no Brasil

    Microsoft Academic Search

    Rebecca Arkader; Kleber Figueiredo

    O ensino da Logística Empresarial (Business Logistics) nos países industrializados vive uma nova onda de interesse por parte de empresas, acadêmicos e estudantes. Em função da maior complexidade das relações economicas e comerciais em mercados globalizados e das possibilidades proporcionadas pelas novas tecnologias de informação, as pesquisas no campo da logística vêm se intensificando, assim como a interação entre universidade,

  8. DETERMINANTES DA INOVAÇÃO NO BRASIL: O PAPEL DA FIRMA E DO TERRITÓRIO

    Microsoft Academic Search

    Eduardo Gonçalves; Mauro Borges Lemos; João Alberto de Negri

    2006-01-01

    Resumo: O ponto analítico deste artigo é entender as inter-relações existentes entre os atributos internos à firma, os atributos territoriais e a capacidade de inovar. A partir deste objetivo, duas hipóteses são testadas. A primeira é que os atributos territoriais são complementares aos atributos internos das firmas inovadoras brasileiras, embora tenham importância variável de acordo com o tipo de inovação

  9. Genetic characterization of native and introduced populations of the neotropical cichlid genus Cichla in Brazil

    PubMed Central

    2009-01-01

    A molecular phylogenetic analysis based on mitochondrial 16S ribosomal DNA and Control Region sequences from native and introduced populations was undertaken, in order to characterize the introduction of Cichla (peacock bass or tucunaré) species in Brazil. Mitochondrial DNA haplotypes found in introduced fish from Minas Gerais state (southeastern Brazil) clustered only with those from native species of the Tocantins River (Cichla piquiti and C. kelberi), thereby suggesting a single or, at most, few translocation acts in this area, even though with fish from the same source-population. Our study contributes to an understanding of the introduction of Cichla in regions of Brazil outside the Amazon basin, and adds phylogenetic data to the recently describe Cichla species, endemic from the Tocantins-Araguaia basin. PMID:21637525

  10. Population responses of two omnivorous fish species to impoundment of a Brazilian tropical river

    Microsoft Academic Search

    Míriam P. Albrecht; Érica P. Caramaschi; Michael H. Horn

    2009-01-01

    Brycon gouldingi and B. falcatus were the most abundant and widespread of five species of the genus captured in a sampling study encompassing 5 years (1995–2000)\\u000a in the upper Rio Tocantins, where the river was impounded by the Serra da Mesa hydroelectric dam. Given that impoundments\\u000a constitute a disturbance to which species will show demographic and biological responses, we assessed such

  11. Revision of the South American freshwater fish genus Laemolyta Cope, 1872 (Ostariophysi: Characiformes: Anostomidae)

    Microsoft Academic Search

    Kelly Cristina Mautari; Naércio Aquino Menezes

    2006-01-01

    The anostomid genus Laemolyta Cope, 1872, is redefined.Various morphological, especially osteological characters in addi- tion to the commonly utilized features of dentition proved useful for its characterization. A taxonomic revision of all species was made using meristics, morphometrics and color pattern. Five species are recognized: Laemolyta fernandezi Myers, 1950, from the río Orinoco (Venezuela) and the sub-basins Tocantins\\/Araguaia and Xingu,

  12. Non-volant mammalian diversity in fragments in extreme eastern Amazonia

    Microsoft Academic Search

    Anita I. Stone; Eldianne M. Lima; G. F. S. Aguiar; Carolina C. Camargo; Tamara A. Flores; Douglas A. Kelt; Suely A. Marques-Aguiar; João A. L. Queiroz; Rossano M. Ramos; José S. Silva Júnior

    2009-01-01

    Current deforestation practices are likely to result in fragmentation of much of Amazonia. Extreme eastern Amazonia (here\\u000a referring to the region east of the Tocantins River) is the most populated area of the Brazilian Amazon and, unfortunately,\\u000a represents the likely future scenario for remaining Amazonia. Although data are available on mammals in central Amazon fragments\\u000a (the BDFFP project, http:\\/\\/pdbff.inpa.gov.br\\/), surprisingly

  13. High Resolution Remote Sensing based Quantification of the Remnant Vegetation Cover in the Araguaia River Basin, Central Brazil

    Microsoft Academic Search

    Manuel Eduardo Ferreira; Laerte Guimarães Ferreira; Edgardo Manuel Latrubesse; Fausto Miziara

    2008-01-01

    The Araguaia\\/Tocantins watershed, with 380,000 km2 drainage basin towards the north portion of Brazil, is one of the major fluvial and phyto-physiognomic system in South America. Its headwaters are situated in the southern portion of the Brazilian savannas (locally known as Cerrado biome), considered one of the world's biodiversity hotspot. Based on 2006 high spatial resolution CCD imagery (20m) of

  14. Combined use of the centroid and matched filtering spectral magnetic methods in determining thermomagnetic characteristics of the crust in the structural provinces of Central Brazil

    NASA Astrophysics Data System (ADS)

    Guimarães, S. N. P.; Ravat, D.; Hamza, V. M.

    2014-06-01

    Spectral analysis of data acquired in twelve different aeromagnetic surveys of central Brazil has led to new insights in the magnetic characteristics of the lithosphere in the structural provinces of Tocantins and São Francisco. Since centroid-based spectral magnetic methods do not model the spectrum explicitly, they are used for the first time in conjunction with the matched filtering spectral modeling method to verify that appropriate slope segments are fit when determining source depths. The Tocantins province is characterized by subdued variations in the thickness of magnetized layers, most of which may be associated with structural discontinuities and subcrustal intrusions. In contrast, variations in thickness of magnetized crustal layers are more prevalent in the São Francisco province. The depths to the bottom of magnetized crust in the Tocantins province are, in general, less than 30-35 km, whereas they reach depths greater than 40 km in the São Francisco province. In parts of São Francisco craton, the depths to the bottom of magnetized crust are greater than the crustal thickness determined from seismic refraction and receiver function studies. However, these are indistinguishable in terms of resolution of the two methods. Analysis of heat flow data and results of thermal modeling indicate depths of Curie isotherms consistent with estimates from spectral analysis of aeromagnetic data. Hence the possibility that the uppermost part of mantle under the São Francisco craton may be ferromagnetic cannot be dismissed.

  15. Morphometric comparisons of the scanning electron micrographs of the eggs of Anopheles (Nyssorhynchus) darlingi Root (Diptera: Culicidae).

    PubMed

    Almeida, Fabio; Suesdek, Lincoln; Motoki, Maysa T; Bergo, Eduardo S; Sallum, Maria Anice M

    2014-11-01

    Anopheles darlingi Root is the principal vector of Plasmodium in Brazil, but its biological variability is not well known. Morphometric analyses of scanning electron microscopy images of the eggs of An. darlingi were conducted using individuals collected in nine states of Brazil (Acre, Amapá, Espírito Santo, Pará, Paraná, Rio de Janeiro, Rondônia, São Paulo, and Tocantins). Ten attributes of the eggs (seven continuous variables and three discrete variables) were respectively measured or counted and analyzed to determine if populations from different geographical regions or biomes could be distinguished. Univariate analysis showed that the eggs from Espírito Santo were the narrowest whereas representatives from Tocantins populations had the smallest floats. Results of multivariate analyses of continuous variables showed that the first principal component (PC1), mainly represented by all four float attributes, helped to differentiate populations. The second principal component (PC2) comprised roughly the length and width of the egg. PC1 of discrete variables corresponded to the number of ribs on the float whereas PC2 was approximately equivalent to the number of discs on the micropyle. Based on those variables (continuous and discrete separately), multivariate discriminant analysis indicated that eggs from individuals collected in Tocantins were distinct from the other populations. Among sampled localities, the one from the state of Tocantins was situated within the Cerrado biome whereas the locality from São Paulo state was at the border of Cerrado, within a transition zone of the Atlantic Forest biome. Generally, the climate in the Cerrado biome was more arid than in areas of the Amazon and Atlantic Forest biomes, and the temperature had the highest range. Coincidentally, based on morphometric data, cluster analysis distinguished the population from Cerrado, Tocantins from all other populations. Results of multiple regression analysis of the variables showed no correlation between egg variables and latitude or climatic variables. We concluded that eggs were polymorphic and that some morphological patterns were regional. Although no environmental influence on the egg attributes was unequivocally detected, a potential association cannot be entirely discarded. Consequently, we hypothesize that morphological traits of the immature stages, especially from the eggs, convey evolutionary information regarding to this species. PMID:25077432

  16. 8a. Sesión del ISTA, Escuela Internacional de Antropología Teatral, en Londrina, Brasil: "Tradiciones y Fundadores de Tradición"

    E-print Network

    Seibel, Beatriz

    1995-10-01

    , un gran salón, el "Mausoleo," la "Plaza Vermelha," con un escenario al aire libre, "Olympia," la cancha de fútbol. Hay unas 150 personas, latinoamericanos, europeos, norteamericanos, orientales. A las 6 de la mañana, desayuno en "Azul y verde," el...

  17. UN ESTUDIO SOBRE CONTAMINACIÓN DE ACUÍFEROS ASOCIADA A LAS ACTIVIDADES AGRÍCOLAS - CUENCA DEL ALTO TIETÉ, ESTADO DE SÃO PAULO, BRASIL

    Microsoft Academic Search

    Valquiria Campos; Raphael Hypolito; Déborah Inês Teixeira Fávaro

    The application of fertilizers and pesticides results in high residual concentrations of heavy metals in soils, as well as in accumulation of toxic substances in crops and natural water. Arsenic may accumulate in soil through the use of pesticides and application of synthetic fertilizers. The mobility of As in soils depends on several factors including redox potential, soil mineralogy, pH

  18. [Seasonal evaluation of mammal species richness and abundance in the "Mário Viana" municipal reserve, Mato Grosso, Brasil].

    PubMed

    Rocha, Ednaldo Cândido; Silva, Elias; Martins, Sebastião Venâncio; Barreto, Francisco Cândido Cardoso

    2006-09-01

    We evaluated seasonal species presence and richness, and abundance of medium and large sized mammalian terrestrial fauna in the "Mário Viana" Municipal Biological Reserve, Nova Xavantina, Mato Grosso, Brazil. During 2001, two monthly visits were made to an established transect, 2,820 m in length. Records of 22 mammal species were obtained and individual footprint sequences quantified for seasonal calculation of species richness and relative abundance index (x footprints/km traveled). All 22 species occurred during the rainy season, but only 18 during the dry season. Pseudalopex vetulus (Lund, 1842) (hoary fox), Eira barbara (Linnaeus, 1758) (tayra), Puma concolor (Linnaeus, 1771) (cougar) and Hydrochaeris hydrochaeris (Linnaeus, 1766) (capybara) were only registered during the rainy season. The species diversity estimated using the Jackknife procedure in the dry season (19.83, CI = 2.73) was smaller than in the rainy season (25.67, CI = 3.43). Among the 18 species common in the two seasons, only four presented significantly different abundance indexes: Dasypus novemcinctus Linnaeus, 1758 (nine-banded armadillo), Euphractus sexcinctus (Linnaeus, 1758) (six-banded armadillo), Dasyprocta azarae Lichtenstein, 1823 (Azara's Agouti) and Tapirus terrestris (Linnaeus, 1758) (tapir). On the other hand, Priodontes maximus (Kerr, 1792) (giant armadillo) and Leopardus pardalis (Linnaeus, 1758) (ocelot) had identical abundance index over the two seasons. Distribution of species abundance in the sampled area followed the expected pattern for communities in equilibrium, especially in the rainy season, suggesting that the environment still maintains good characteristics for mammal conservation. The present study shows that the reserve, although only 470 ha in size, plays an important role for conservation of mastofauna of the area as a refuge in an environment full of anthropic influence (mainly cattle breeding in exotic pasture). PMID:18491629

  19. Registros documentados de cinco novos trinta-réis (Charadriiformes: Sternidae) no estado do Ceará, nordeste do Brasil

    Microsoft Academic Search

    Weber Girão; Ciro Albano; Alberto A. Campos; Thieres Pinto; Caio J. Carlos

    Documented records of five terns (Charadriiformes: Sternidae) new for the State of Ceará, north-east Brazil. We present new records, based on museum specimens and\\/or photographs, of five species of Sternidade for the State of Ceará in north- east Brazil, namely, Black Noddy Anous minutus (apparently the first from Brazilian mainland), Least Tern Sternula antillarum, Black Tern Chlidonias niger, Arctic Tern

  20. Dogmatism and the "Knowledge Gap" among Users of the Mass Media of Communication: A Study in Brasilia, Brasil.

    ERIC Educational Resources Information Center

    Simmons, Robert E.; Garda, Eduardo Carlos

    A study was conducted to discover whether (1) use of each of the print and broadcast media could be correlated with subjects' knowledge level, and (2) whether controlling for dogmatism would increase the proportion of media users, with higher levels of knowledge among those less dogmatic, and decrease the proportion among the more dogmatic.…

  1. La efectividad de las redes de protección social: El rol de los sistemas integrados de información social en Brasil

    Microsoft Academic Search

    Leticia Bartholo; Ricardo Rodrigues Dutra

    2011-01-01

    Este trabajo forma parte de una serie de estudios realizados en el marco del proyecto “La efectividad de las redes de protección social: El rol de los sistemas integrados de información social”. Los estudios de caso fueron realizados en el período 2007-08. Se agradecen los comentarios de Amélia Cohn, Lúcia Maria Modesto Pereira y Paulo de Martino Jannuzzi. El texto

  2. Mamíferos terrestres e aves da Terra Indígena Sapukai (Aldeia Guarani do Bracui), Angra dos Reis, RJ, Brasil

    Microsoft Academic Search

    André A. Cunha; Henrique Rajão

    Terrestrial mammals and birds of Sapukai Indigenous Area (Aldeia Guarani do Bracui), Angra dos Reis, RJ, Brazil. Species composition and distribution in the Brazilian Atlantic Forest are still poorly known, although the area has been studied by naturalists since the 16th century. The Serra do Mar region between the states of São Paulo and Rio de Janeiro concentrates one of

  3. Perfil demográfico da população indígena Xavánte de Sangradouro-Volta Grande, Mato Grosso (1993-1997), Brasil

    Microsoft Academic Search

    Luciene Guimarães de Souza; Ricardo Ventura Santos

    2001-01-01

    This paper analyzes the demographic profile of the Xavánte population at the San- gradouro-Volta Grande Indigenous Reserve in Mato Grosso, Brazil, from 1993 to 1997. The survey included annual censuses and vital statistics from 7 Xavánte villages. Permanent contact with Brazilian national society, established in the 1940s and 50s, caused a population drop due to epidemics and clashes. In 1995

  4. Saúde, minorias e desigualdade: algumas teias de inter-relações, com ênfase nos povos indígenas no Brasil

    Microsoft Academic Search

    Carlos Everaldo Alvares Coimbra Jr.; Ricardo Ventura Santos

    2000-01-01

    Abstract In Brazil, few studies have analyzed the impacts of the ethnic-racial dimension up- on the expression of health issues. In their daily lives, minorities experience situations of exclu- sion, marginality and discrimination that make,them particularly vulnerable to health problems. In this paper we primarily focus on indigenous,peoples. Rates of morbidity ,and mortality above national levels, hunger, under- nutrition, occupational

  5. ACTIVE BIOMONITORING OF MAGNESIUM AND MANGANESE USING THE Perna perna MUSSEL COLLECTED IN THE NORTH SHORE OF SÃO PAULO, BRASIL

    Microsoft Academic Search

    Daniele Seo; Marina B. A. Vasconcellos; Mitiko Saiki; Marília G. M. Catharino; Edson G. Moreira; Eduinetty C. P. M. de Sousa; Camilo D. S. Pereira; Centro de Ciências; Biológicas e da Saúde

    2009-01-01

    The objective of the present work was to study the active biomonitoring of magnesium and manganese in the seashore of São Paulo, using the Perna perna mussel , which was transplanted from an uncontaminated region to probably contaminated sites. Mussel samples acquired in the control region, a mussel farm in Cocanh a beach Caraguatatuba, were exposed for three months in

  6. A assembléia de aves de áreas úmidas em dois sistemas de cultivo de arroz irrigado no extremo sul do Brasil

    Microsoft Academic Search

    Rafael A. Dias; Maria Inês Burger

    The wetland bird assemblage in two irrigated rice fields in southern Brazil. Seventeen wetland bird counts were conducted from November 1998 to March 1999 in two 52 ha rice paddies using no-tillage and \\

  7. Rev. Brasil. Biol., 60(4): 683-687 Deladenus siricidicola PARASITISM EVALUATION ADULT Sirex noctilio 683

    E-print Network

    , Centro Agroveterinário, Universidade do Estado de Santa Catarina, CAV/UDESC 2 Centro Agroveterinário, CAV Estatística e Experimentação, Centro Agroveterinário, CAV/UDESC, Av. Luiz de Camões, 2.090, CEP 88520-000, Lages, SC, Brazil 5 CAV/UDESC Correspondence to: Samuel Mariano da Silva, Laboratório de Bioquímica

  8. Alteração estrutural de áreas de florestas exploradas convencionalmente em planos de manejo, nos domínios de floresta Atlântica, Minas Gerais, Brasil

    Microsoft Academic Search

    Danilo José da Silva Coelho; Agostinho Lopes de Souza; Carlos Pedro Boechat Soares; João Augusto Alves Meira Neto; Helio Garcia Leite

    2007-01-01

    The objective of the present study was to analyze the changes in the horizontal, diametric and internal structures in conventionally exploited areas of forest management plans. Indicators and verifiers were used having as control the legal reserve area. After the forest harvest period of each FMP and comparing the forest management areas with the legal reserve areas with respect to

  9. Anatomia e uso da madeira de duas variedades de Sclerolobium paniculatum Vog. do sul do Maranhão, Brasil1

    Microsoft Academic Search

    Carmen Regina Marcati

    Wood anatomy and use of two varieties of Sclerolobium paniculatum Vog. in the south of Maranhão State, Brazil). This work presents information about the use of wood of Sclerolobium paniculatum (var. subvelutinum and rubiginosum) at rural properties in the south of the state of Maranhão, Brazil, about the woods' anatomy and about the correlation between certain anatomical ch aracteristics and

  10. Discutindo gestão sustentável da água em áreas metropolitanas no Brasil: reflexões a partir da metodologia européia Water 21

    Microsoft Academic Search

    Ana Lúcia Britto; Bernard Barraqué

    This study is located in the interface between water resources management and sanitation services management (water distribution, wastewater sewage, rainwater sewage, garbage collection). The matter of water management sustainability in urban areas implies reconciling two perspectives: to improve the quality of environmental sanitation services and to conserve water resources, preserving urban rivers. This study is based on a review of

  11. DETERMINAÇÃO DE ÁREAS COM RISCO DE DEGRADAÇÃO DOS RECURSOS HÍDRICOS NO MUNICÍPIO DE ITATIBA\\/SP\\/BRASIL

    Microsoft Academic Search

    José Teixeira Filho

    This paper presents the results of the determination of the areas with degradation risk of the water resources in County of Itatiba\\/SP. Itatiba is situated at 46° 40' W and 22° 55' S, covering an area of 323 Km 2 , with 34 km of Atibaia river and estimated population 71,644 people (89% urban and 11% rural). Based on information

  12. SISTEMAS DE INFORMAÇÕES NO GERENCIAMENTO DE RECURSOS HÍDRICOS NO BRASIL E RIO GRANDE DO SUL: BREVES CONSIDERAÇÕES

    Microsoft Academic Search

    Letícia Coradini Frantz; Jussara Cabral Cruz; Carin Maria Schmitt

    Resumo - A água é um recurso natural essencial a todos, surgindo assim a necessidade de gerenciá-la adequadamente para que se possa obter o seu uso sustentável. Sabendo-se que um grande número de informações são necessários para gerenciar os recursos hídricos, o adequado uso da tecnologia da informação e, mais especificamente, de sistemas de informação elaborados para esta função, certamente

  13. LOCALIZAÇÃO DAS REDES DE PESCA DE CAMARÃO (SAQUINHO) UTILIZANDO AEROFOTOS GEORREFERENCIADAS: REGIÃO ESTUARINA DA LAGUNA DOS PATOS, RS, BRASIL

    Microsoft Academic Search

    CARLOS HARTMANN; Arquenatol Dei Svaldi

    2001-01-01

    Location of fisheries shrimps nets (saquinho) using georreferenced aerophotos: Patos Lagoon estuary, southern Brazil Information obtained from aircrafts with sensor of small format (35mm) has been used with success to get information of the environment. Shrimps fishery is an important economic activity for Rio Grande and surroundings. The shrimp fishery net used is fike nets known as \\

  14. Avaliação do desempenho de equações de regionalização de vazões na bacia hidrográfica do Ribeirão Santa Bárbara, Goiás, Brasil

    Microsoft Academic Search

    Luiz Fernando; Coutinho de Oliveira; Alexandre Puglisi; Barbosa Franco; Engenheiro Agrônomo

    2008-01-01

    Information on river flows is essential for water resources management. Most of the Brazilian small watersheds is ungauged. Regionalization of hydrologic information is an alternative way to get this lacking information. The regionalization models, however, are a simplified representation of natural phenomena, what could lead to miscalculation. Therefore, these models should be tested before being used as a management tool.

  15. Composição florística e estrutura do componente arbóreo de uma floresta altimontana no município de Camanducaia, Minas Gerais, Brasil

    Microsoft Academic Search

    Glauco S. França; João R. Stehmann

    2004-01-01

    Floristic composition and structure of a tree component of a high montane forest in the municipality of Camanducaia, Minas Gerais, Brazil). The floristic composition and phytosociological structure were investigated in an area of 0.75 ha of a montane forest (1,900 m a.s.l.) located between the municipality of Gonçalves and Camanducaia in the Serra da Mantiqueira. This forest belongs to the

  16. La influencia de la tectónica cenozoica en la productividad de agua subterránea en zonas fracturadas: aplicación a Sao Paulo, Brasil

    Microsoft Academic Search

    A. J. Fernandes; D. L. Rudolph

    A new approach, named the Homogeneous Tectonic Domain method (HTD) is developed to correlate structural lineaments recognised through air-photo interpretation with subsurface fracture features that are associated with zones of high groundwater production in frac- tured-rock environments. The analysis approach involves correlating the lineament features of a given area with the orientation of the pri- mary stress fields and fracture

  17. Alimentação e ecomorfologia de duas espécies de piranhas (Characiformes: Characidae) do lago de Viana, estado do Maranhão, Brasil

    Microsoft Academic Search

    Nivaldo Magalhães Piorski; José de Ribamar Lima Alves; Monica Rejany Barros Machado; Maria Marlucia Ferreira Correia

    2005-01-01

    Serrasalmus aff. brandtii and Pygocentrus nattereri are two species of piranhas, both common in the Viana Lake, which is formed by the flooding waters of the Pindaré River, a tributary of the left bank of the Mearim River. A sample composed of 249 specimens of these species was studied in order to identify diet composition and feeding strategies employed by

  18. Metodologia para elaboração de mapas hidrogeológicos: estudo de caso da bacia hidrográfica do rio da Palma, DF, Brasil

    Microsoft Academic Search

    Tatiana Diniz Gonçalves; José Eloi Guimarães Campos; Getulio Teixeira; Hélio Nóbile Diniz; Asa Norte; Luiz Cembranelli

    2007-01-01

    This paper had the objective of developing a methodology to support the management of water resources based on hydro geological cartography, validated for the hydro geologic conditions of a watershed located at Central Brazil. Results show two major products: a hydro geologic, and a potential infiltration and recharge maps of the high course of the Rio da Palma watershed. This

  19. ASPECTOS JURÍDICOS DO USO DE INSTRUMENTOS ECONÔMICOS NA GESTÃO AMBIENTAL: A NOVA POLÍTICA DE RECURSOS HÍDRICOS NO BRASIL

    Microsoft Academic Search

    Marcia Cristina Frickmann Young; Carlos Eduardo; Frickmann Young

    This article examines legal aspects for the effective implementation of the user-pays principle as a new tool for environmental management in Brazil. The necessary elements for the adoption of fiscal instruments are presented as a way to charge for the use of environmental resources and, given the complexity and legal restrictions associated with new taxes, it is shown that the

  20. Avaliação do consumo alimentar de crianças pertencentes a uma creche filantrópica na Ilha de Paquetá, Rio de Janeiro, Brasil

    Microsoft Academic Search

    Roseane M. S. Barbosa; Viviane C. Franco; Rosana Salles-Costa; Eliane A. Soares

    2006-01-01

    Objectives: to compare the food intake of children in a philanthropic daycare center in two periods (at enrollment and following six months attendance) based on the North American Food Guide Pyramid through the Healthy Eating Index (HEI). Methods: the children eating habits were informed by the parents or custodians at enrollment and following six months of children's attendance, the food

  1. Seismic characteristics of central Brazil crust and upper mantle: A deep seismic refraction study

    USGS Publications Warehouse

    Soares, J.E.; Berrocal, J.; Fuck, R.A.; Mooney, W.D.; Ventura, D.B.R.

    2006-01-01

    A two-dimensional model of the Brazilian central crust and upper mantle was obtained from the traveltime interpretation of deep seismic refraction data from the Porangatu and Cavalcante lines, each approximately 300 km long. When the lines were deployed, they overlapped by 50 km, forming an E-W transect approximately 530 km long across the Tocantins Province and western Sa??o Francisco Craton. The Tocantins Province formed during the Neoproterozoic when the Sa??o Francisco, the Paranapanema, and the Amazon cratons collided, following the subduction of the former Goia??s ocean basin. Average crustal VP and VP/VS ratios, Moho topography, and lateral discontinuities within crustal layers suggest that the crust beneath central Brazil can be associated with major geological domains recognized at the surface. The Moho is an irregular interface, between 36 and 44 km deep, that shows evidences of first-order tectonic structures. The 8.05 and 8.23 km s-1 P wave velocities identify the upper mantle beneath the Porangatu and Cavalcante lines, respectively. The observed seismic features allow for the identification of (1) the crust has largely felsic composition in the studied region, (2) the absence of the mafic-ultramafic root beneath the Goia??s magmatic arc, and (3) block tectonics in the foreland fold-and-thrust belt of the northern Brasi??lia Belt during the Neoproterozoic. Seismic data also suggested that the Bouguer gravimetric discontinuities are mainly compensated by differences in mass distribution within the lithospheric mantle. Finally, the Goia??s-Tocantins seismic belt can be interpreted as a natural seismic alignment related to the Neoproterozoic mantle domain. Copyright 2006 by the American Geophysical Union.

  2. Late Pleistocene carnivores (Carnivora: Mammalia) from a cave sedimentary deposit in northern Brazil.

    PubMed

    Rodrigues, Shirlley; Avilla, Leonardo S; Soibelzon, Leopoldo H; Bernardes, Camila

    2014-11-28

    The Brazilian Quaternary terrestrial Carnivora are represented by the following families: Canidae, Felidae, Ursidae, Procyonidae Mephitidae and Mustelidae. Their recent evolutionary history in South America is associated with the uplift of the Panamanian Isthmus, and which enabled the Great American Biotic Interchange (GABI). Here we present new fossil records of Carnivora found in a cave in Aurora do Tocantins, Tocantins, northern Brazil. A stratigraphical controlled collection in the sedimentary deposit of the studied cave revealed a fossiliferous level where the following Carnivora taxa were present: Panthera onca, Leopardus sp., Galictis cuja, Procyon cancrivorus, Nasua nasua and Arctotherium wingei. Dating by Electron Spinning Resonance indicates that this assemblage was deposited during the Last Glacial Maximum (LGM), at least, 22.000 YBP. The weasel, G. cuja, is currently reported much further south than the record presented here. This may suggest that the environment around the cave was relatively drier during the LGM, with more open vegetation, and more moderate temperatures than the current Brazilian Cerrado. PMID:25424041

  3. Late Pleistocene carnivores (Carnivora: Mammalia) from a cave sedimentary deposit in northern Brazil.

    PubMed

    Rodrigues, Shirlley; Avilla, Leonardo S; Soibelzon, Leopoldo H; Bernardes, Camila

    2014-12-01

    The Brazilian Quaternary terrestrial Carnivora are represented by the following families: Canidae, Felidae, Ursidae, Procyonidae Mephitidae and Mustelidae. Their recent evolutionary history in South America is associated with the uplift of the Panamanian Isthmus, and which enabled the Great American Biotic Interchange (GABI). Here we present new fossil records of Carnivora found in a cave in Aurora do Tocantins, Tocantins, northern Brazil. A stratigraphical controlled collection in the sedimentary deposit of the studied cave revealed a fossiliferous level where the following Carnivora taxa were present: Panthera onca, Leopardus sp., Galictis cuja, Procyon cancrivorus, Nasua nasua and Arctotherium wingei. Dating by Electron Spinning Resonance indicates that this assemblage was deposited during the Last Glacial Maximum (LGM), at least, 22.000 YBP. The weasel, G. cuja, is currently reported much further south than the record presented here. This may suggest that the environment around the cave was relatively drier during the LGM, with more open vegetation, and more moderate temperatures than the current Brazilian Cerrado. PMID:25590705

  4. Fishing Effort and Catch Composition of Urban Market and Rural Villages in Brazilian Amazon

    NASA Astrophysics Data System (ADS)

    Hallwass, Gustavo; Lopes, Priscila Fabiana; Juras, Anastacio Afonso; Silvano, Renato Azevedo Matias

    2011-02-01

    The management of small-scale freshwater fisheries in Amazon has been based usually on surveys of urban markets, while fisheries of rural villages have gone unnoticed. We compared the fishing characteristics (catch, effort and selectivity) between an urban market and five small villages in the Lower Tocantins River (Brazilian Amazon), downstream from a large reservoir. We recorded 86 and 601 fish landings in the urban market and villages, respectively, using the same methodology. The urban fishers showed higher catch per unit of effort, higher amount of ice (related to a higher fishing effort, as ice is used to store fish catches) and larger crew size per fishing trip, but village fishers had a higher estimated annual fish production. Conversely, urban and village fishers used similar fishing gear (gillnets) and the main fish species caught were the same. However, village fishers showed more diverse strategies regarding gear, habitats and fish caught. Therefore, although it underestimated the total amount of fish caught in the Lower Tocantins River region, the data from the urban market could be a reliable indicator of main fish species exploited and fishing gear used by village fishers. Monitoring and management should consider the differences and similarities between urban and rural fisheries, in Amazon and in other tropical regions.

  5. A new cryptic species of South American freshwater pufferfish of the genus Colomesus (Tetraodontidae), based on both morphology and DNA data.

    PubMed

    Amaral, Cesar R L; Brito, Paulo M; Silva, Dayse A; Carvalho, Elizeu F

    2013-01-01

    The Tetraodontidae are an Acantomorpha fish family with circumglobal distribution composed of 189 species grouped in 19 genera, occurring in seas, estuaries, and rivers between the tropical and temperate regions. Of these, the genus Colomesus is confined to South America, with what have been up to now considered only two species. C. asellus is spread over the entire Amazon, Tocantins-Araguaia drainages, and coastal environments from the Amazon mouth to Venezuela, and is the only freshwater puffers on that continent. C. psittacus is found in coastal marine and brackish water environments from Cuba to the northern coast of South America as far south as to Sergipe in Brazil. In the present contribution we used morphological data along with molecular systematics techniques to investigate the phylogeny and phylogeography of the freshwater pufferfishes of the genus Colomesus. The molecular part is based on a cytochrome C oxidase subunit I dataset constructed from both previously published and newly determined sequences, obtained from specimens collected from three distinct localities in South America. Our results from both molecular and morphological approaches enable us to identify and describe a new Colomesus species from the Tocantins River. We also discuss aspects of the historical biogeography and phylogeography of the South American freshwater pufferfishes, suggesting that it could be more recent than previously expected. PMID:24040239

  6. Babassu nut residues: potential for bioenergy use in the North and Northeast of Brazil.

    PubMed

    de Paula Protásio, Thiago; Fernando Trugilho, Paulo; da Silva César, Antônia Amanda; Napoli, Alfredo; Alves de Melo, Isabel Cristina Nogueira; Gomes da Silva, Marcela

    2014-01-01

    Babassu is considered the largest native oil resource worldwide and occurs naturally in Brazil. The purpose of this study was to evaluate the potential of babassu nut residues (epicarp, mesocarp and endocarp) for bioenergy use, especially for direct combustion and charcoal production. The material was collected in the rural area of the municipality of Sítio Novo do Tocantins, in the state of Tocantins, Brazil. Analyses were performed considering jointly the three layers that make up the babassu nut shell. The following chemical characterizations were performed: molecular (lignin, total extractives and holocellulose), elemental (C, H, N, S and O), immediate (fixed carbon, volatiles and ash), energy (higher heating value and lower heating value), physical (basic density and energy density) and thermal (thermogravimetry and differential thermal analysis), besides the morphological characterization by scanning electron microscopy. Babassu nut residues showed a high bioenergy potential, mainly due to their high energy density. The use of this biomass as a bioenergy source can be highly feasible, given their chemical and thermal characteristics, combined with a low ash content. Babassu nut shell showed a high basic density and a suitable lignin content for the sustainable production of bioenergy and charcoal, capable of replacing coke in Brazilian steel plants. PMID:24741469

  7. A New Cryptic Species of South American Freshwater Pufferfish of the Genus Colomesus (Tetraodontidae), Based on Both Morphology and DNA Data

    PubMed Central

    Amaral, Cesar R. L.; Brito, Paulo M.; Silva, Dayse A.; Carvalho, Elizeu F.

    2013-01-01

    The Tetraodontidae are an Acantomorpha fish family with circumglobal distribution composed of 189 species grouped in 19 genera, occurring in seas, estuaries, and rivers between the tropical and temperate regions. Of these, the genus Colomesus is confined to South America, with what have been up to now considered only two species. C. asellus is spread over the entire Amazon, Tocantins-Araguaia drainages, and coastal environments from the Amazon mouth to Venezuela, and is the only freshwater puffers on that continent. C. psittacus is found in coastal marine and brackish water environments from Cuba to the northern coast of South America as far south as to Sergipe in Brazil. In the present contribution we used morphological data along with molecular systematics techniques to investigate the phylogeny and phylogeography of the freshwater pufferfishes of the genus Colomesus. The molecular part is based on a cytochrome C oxidase subunit I dataset constructed from both previously published and newly determined sequences, obtained from specimens collected from three distinct localities in South America. Our results from both molecular and morphological approaches enable us to identify and describe a new Colomesus species from the Tocantins River. We also discuss aspects of the historical biogeography and phylogeography of the South American freshwater pufferfishes, suggesting that it could be more recent than previously expected. PMID:24040239

  8. Genetic divergence among invasive and native populations of Plagioscion squamosissimus (Perciformes, Sciaenidae) in Neotropical regions.

    PubMed

    Panarari-Antunes, R S; Prioli, A J; Prioli, S M A P; Gomes, V N; Júlio, H F; Agostinho, C S; Silva Filho, J P; Boni, T A; Prioli, L M

    2012-06-01

    The genetic divergence among invasive and native populations of Plagioscion squamosissimus from four Neotropical hydrographic basins was assessed using the hypervariable domain of the mitochondrial DNA (mtDNA) control region. Plagioscion squamosissimus is native to the neighbouring hydrographic basins of the Parnaíba and Amazon Rivers, and the latter includes the Araguaia-Tocantins drainage, but it is invasive in other basins due to introductions. The mtDNA nucleotide polymorphism supported the hypothesis that the Amazon and Parnaíba populations constitute the same species and are separated into two independent evolutionary lineages. Absence of nucleotide polymorphism was observed within and among P. squamosissimus populations invasive to the uppper and middle Paraná River basins. Nucleotide divergence was null or low comparing the Paraná invasive populations with the populations native to the Parnaíba River basin, whereas it was significantly high compared to Tocantins populations. These results ascertain that P. squamosissimus populations invasive to the upper Paraná River basin and to the middle Paraná River basin downstream of the Itaipu dam are derived from the Parnaíba River basin. The genetic data presented are potentially useful to assist further studies on P. squamosissimus taxonomic and geographic distribution, development of ecological guidelines for managing populations invasive to the upper Paraná River basin and for preservation of native fish diversity. PMID:22650426

  9. SPOLM 2008 ISSN 1806-3632 Rio de Janeiro, Brasil, 05 e 06 de agosto de 2008. ANLISE DE UM ALGORITMO DE OTIMIZAO DE REDES DE

    E-print Network

    Cruz, Frederico

    ALGORITMO DE OTIMIZAÇÃO DE REDES DE FILAS FINITAS Helinton A. L. Barbosa Departamento de Estatística ­ ICEx de espera em redes de filas finitas gerais com servidores múltiplos. Um método de aproximação é utilizado para estimar o desempenho da rede de filas e um algoritmo iterativo de busca é empregado para

  10. Landslide Susceptibility Analysis by the comparison and integration of Random Forest and Logistic Regression methods; application to the disaster of Nova Friburgo - Rio de Janeiro, Brasil (January 2011)

    NASA Astrophysics Data System (ADS)

    Esposito, Carlo; Barra, Anna; Evans, Stephen G.; Scarascia Mugnozza, Gabriele; Delaney, Keith

    2014-05-01

    The study of landslide susceptibility by multivariate statistical methods is based on finding a quantitative relationship between controlling factors and landslide occurrence. Such studies have become popular in the last few decades thanks to the development of geographic information systems (GIS) software and the related improved data management. In this work we applied a statistical approach to an area of high landslide susceptibility mainly due to its tropical climate and geological-geomorphological setting. The study area is located in the south-east region of Brazil that has frequently been affected by flood and landslide hazard, especially because of heavy rainfall events during the summer season. In this work we studied a disastrous event that occurred on January 11th and 12th of 2011, which involved Região Serrana (the mountainous region of Rio de Janeiro State) and caused more than 5000 landslides and at least 904 deaths. In order to produce susceptibility maps, we focused our attention on an area of 93,6 km2 that includes Nova Friburgo city. We utilized two different multivariate statistic methods: Logistic Regression (LR), already widely used in applied geosciences, and Random Forest (RF), which has only recently been applied to landslide susceptibility analysis. With reference to each mapping unit, the first method (LR) results in a probability of landslide occurrence, while the second one (RF) gives a prediction in terms of % of area susceptible to slope failure. With this aim in mind, a landslide inventory map (related to the studied event) has been drawn up through analyses of high-resolution GeoEye satellite images, in a GIS environment. Data layers of 11 causative factors have been created and processed in order to be used as continuous numerical or discrete categorical variables in statistical analysis. In particular, the logistic regression method has frequent difficulties in managing numerical continuous and discrete categorical variables together; therefore in our work we tried different methods to process categorical variables , until we obtained a statistically significant model. The outcomes of the two statistical methods (RF and LR) have been tested with a spatial validation and gave us two susceptibility maps. The significance of the models is quantified in terms of Area Under ROC Curve (AUC resulted in 0.81 for RF model and in 0.72 for LR model). In the first instance, a graphical comparison of the two methods shows a good correspondence between them. Further, we integrated results in a unique susceptibility map which maintains both information of probability of occurrence and % of area of landslide detachment, resulting from LR and RF respectively. In fact, in view of a landslide susceptibility classification of the study area, the former is less accurate but gives easily classifiable results, while the latter is more accurate but the results can be only subjectively classified. The obtained "integrated" susceptibility map preserves information about the probability that a given % of area could fail for each mapping unit.

  11. Simulated Extreme Prepitation Indices over Northeast Brasil in Current Climate and Future Scenarios RCP4.5 and RCP8.5

    NASA Astrophysics Data System (ADS)

    Wender Santiago Marinho, Marcos; Araújo Costa, Alexandre; Cassain Sales, Domingo; Oliveira Guimarães, Sullyandro; Mariano da Silva, Emerson; das Chagas Vasconcelos Júnior, Francisco

    2013-04-01

    In this study, we analyzed extreme precipitation indices, for present and future modeled climates over Northeast of Brazil (NEB), from CORDEX simulations over the domain of Tropical Americas. The period for the model validation was from 1989-2007, using data from the European Center (ECWMF) Reanalysis, ERA-INTERIM, as input to drive the regional model (RAMS 6.0). Reanalysis data were assimilated via both lateral boundaries and the entire domain (a much weaker "central nudging"). Six indices of extreme precipitation were calculated over NEB: the average number of days above 10, 20 and 30 mm in one year (R10, R20, R30), the number of consecutive dry days (CDD), the number of consecutive wet days (CWD) and the maximum rainfall in five consecutive days (RX5). Those indices were compared against two independent databases: MERRA (Modern Era Retrospective analysis for Research and Applications) and TRMM (Tropical Rainfall Measuring Mission). After validation, climate simulations were performed for the present climate (1985-2005) and short-term (2015-2035), mid-term (2045-2065) and long-term (2079 to 2099) future climates for two scenarios: RCP 4.5 and RCP 8.5, nesting RAMS into HadGEM2-ES global model (a participant of CMIP5). Along with the indices, we also calculated Probability Distribution Functions (PDFs) to study the behavior of daily precipitation in the present and by the end of the 21st century (2079 to 2099) to assess possible changes under RCPs 4.5 and 8.5. The regional model is capable of representing relatively well the extreme precipitation indices for current climate, but there is some difficulties in performing a proper validation since the observed databases disagree significantly. Future projections show significant changes in most extreme indices. Rnn generally tend to increase, especially under RCP8.5. More significant changes are projected for the long-term period, under RCP8.5, which shows a pronounced R30 enhancement over northern states. CDD tends to decrease over most of NEB in the short but this trend is reverted toward the end of the century in both scenarios with a significant increase in the duration of the dry season over Northwestern and Eastern NEB (exceeding 50 days over certain areas), whereas projected CWD changes are smaller. Rx5 shows a general increasing trend especially in the long term period,under RCP8.5.

  12. Unidade NATAL: Rua Carlos Serrano, 2073 -CEP 59076-740 -Natal -RN -BRASIL -FONE: (84) 3204 9100 -PEDIDO DE COTAO ELETRNICA N 053/2012

    E-print Network

    software o Usuários do Mac®: Mac OS X 10.5x ou superior Navegador Apple Safari 3 ou superior para ver o), pontes de áudio, reprodutores iTunesTM, porta-retratos, TVs ligadas na rede, etc. o Software incluso instalar o software o Usuários do Linux®: Linux: Redhat 9, Enterprise 4/5, Gentoo, Mandrake 10, Devian 4

  13. First results of the Radioactive Ion Beam facility in Brasil (RIBRAS): Elastic scattering of 6He and 8Li beams on light and medium mass targets

    NASA Astrophysics Data System (ADS)

    Lépine-Szily, A.; Lichtenthäler, R.; Ribras Collaboration

    2007-05-01

    A double superconducting solenoid system (RIBRAS) for the production of secondary light exotic nuclear beams was installed at the São Paulo Pelletron Laboratory of the University of São Paulo, Brazil. The two solenoids are presently operating in one of the beam lines of the 8 MV Tandem Accelerator. Secondary beams of 8Li and 6He were produced using a 7Li primary beam and a production target of 9Be. These beams were impinged on targets of 27Al, 51V and 197Au and the scattered radioactive nuclei were detected in Si telescopes. Elastic scattering angular distributions were measured at several energies close and above the Coulomb barrier. The angular distributions were analysed with optical potentials and reaction cross sections were obtained from the optical model calculations.

  14. Impact of vinasse application in the C and N in the soils cultivaded with sugarcane in South Brasil, using Isotopic Technique

    NASA Astrophysics Data System (ADS)

    Rossete, A. M.; Medeiros, G. G.; Adorno, F. C.; Possignolo, N. V.; Moreira, M. Z.; Camargo, P. B.

    2013-12-01

    The main anthropogenic sources in the environment are fertilizers, pesticides, biomass burning, vehicle emissions, and disposal of urban and industrial waste. Vinasse is characterized as a residual of sugarcane distillery effluent with high concentrations of potassium and organic matter. The environmental impact caused by its use in the vinasse is modification chemical and physical properties in the soil and water. For this, the isotopic technique can be a powerful tool to understand the biogeochemical cycling of light elements (C and N). Some environmental studies have been conducted involving isotopic characterization of Carbon and Nitrogen in soil. Several soils cultivated with sugarcane of different regions of São Paulo state, Brazil, were analyzed to perform the isotopic characterization. The study area was selected where soil management is by mechanical harvesting of sugarcane and vinasse application. The area was divided into three parts: control (without cultivation); after mechanical harvesting of sugarcane; after mechanical harvesting of sugarcane and vinasse application. Three days after the harvest of sugarcane the vinasse was applied and sampling of soil surface was carried out in two periods of 7 and 30 days after application of vinasse. The isotopic determination in the sample soil and concentration of C and N was by IRMS, Thermo Delta Plus, allowing simultaneous determination of 13C/12C isotope ratios (?13C) and 15N/14N (?15N). The results of the C and N concentration in the vinasse applied were average values 2.52% and 0.02% and isotopic values of 13C and 15N were -14.1‰ and 5.2‰. The results for the C concentration of the three areas in two periods showed values around 0.86 to 1.01%. The 13C isotopic values were -16.8 to -15.0‰, demonstrating the predominant cultivation in the region in relation to ?13C values of C4 plant (sugarcane). The results of N analysis were 0.08 to 0.10% and 15N isotope analysis, showing values ranging from 7.9 to 8.5‰. No significant variation in concentration of N and C in three study areas was observed. Considering 13C and 15N isotopic characterization independent of management, there was noted no isotopic fractionation by microbial activity. The results evidenced that the addition of vinasse in the soil did not increase the concentration of C and N does not represent a source of C and N. Furthermore, the isotopic technique can be applied in studies involving biogeochemical cycling, aiming to identify progress or setbacks in the quality of soil and possible impact in ecosystem.

  15. Anais XI SBSR, Belo Horizonte, Brasil, 05 -10 abril 2003, INPE, p. 2193 -2200. MAPSAR: A NEW L-BAND SPACEBORNE SAR MISSION FOR ASSESSMENT

    E-print Network

    Domingues, Margarete Oliveira

    of weather or sun light is particularly important for regions of the planet that present restrictions) mission for Earth Observation. MAPSAR is the result of a joint pre-phase A study made by INPE and DLR of weather conditions for assessment, management and monitoring natural (renewable and non

  16. Níveis de mercúrio em peixes consumidos pela comunidade indígena de Sai Cinza na Reserva Munduruku, Município de Jacareacanga, Estado do Pará, Brasil

    Microsoft Academic Search

    Edilson da Silva Brabo; Elisabeth de Oliveira Santos; Iracina Maura de Jesus; Artur Fernando Mascarenhas; Kleber Freitas Faial

    1999-01-01

    This study evaluated fish consumption and mercury levels in fish consumed by an in- digenous community in the State of Pará. Eighty fish samples were collected (barbado, surubim, traíra, tucunaré, piranha, aruanã, caratinga, aracu, mandiá, jandiá, and pacu). Mercury analy- sis was performed using a Mercury Analyzer HG-3500. Average mercury concentration in carniv- orous species was 0.293 µg\\/g (SD =

  17. Teores de ácido anacárdico em pedúnculos de cajueiro Anacardium microcarpum e em oito clones de Anacardium occidentale var. nanum disponíveis no Nordeste do Brasil

    Microsoft Academic Search

    Tânia da Silveira Agostini-Costa; Katiane Arrais Jales; Deborah dos Santos Garruti; Viviane Azevedo Padilha; Jedaias Batista de Lima; Maria de Jesus Aguiar; João Rodrigues de Paiva

    2004-01-01

    Anacardic acid, a phenolic compound present in cashew apple and in some medicinal plants, is being associated to some specific biological effects. The purpose of this work was to determine anacardic acid content in peduncles of A. microcarpum and eight clones of A. occidentale from Northeastern Brazil, evaluating some physical-chemical and sensory characteristics of these peduncles. Cashew apples from BRS

  18. A Educacao dos Portadores de Necessidades Especiais no Brasil no Periodo de 1910 a 1949 (Education of Those with Special Needs in Brazil from 1920 to 1949).

    ERIC Educational Resources Information Center

    Marques, Carlos Alberto; Santiago, Mylene Cristina; de Moura, Simone Moreira

    2000-01-01

    Examines education given to those with special needs in Brazil from 1910-1949. Shows the dichotomy of meanings in which the education of special needs persons during that period, besides being marked by concepts related to the exclusion paradigm, already indicated signs of respect for diversity and civil rights. (BT)

  19. Dating human occupation at Toca do Serrote das Moendas, São Raimundo Nonato, Piauí-Brasil by electron spin resonance and optically stimulated luminescence.

    PubMed

    Kinoshita, Angela; Skinner, Anne R; Guidon, Niede; Ignacio, Elaine; Felice, Gisele Daltrini; Buco, Cristiane de A; Tatumi, Sonia; Yee, Márcio; Figueiredo, Ana Maria Graciano; Baffa, Oswaldo

    2014-12-01

    Excavation of Toca do Serrote das Moendas, in Piauí state, Brazil revealed a great quantity of fossil wild fauna associated with human remains. In particular, fossils of a cervid (Blastocerus dichotomus) were found, an animal frequently pictured in ancient rock wall paintings. In a well-defined stratum, two loose teeth of this species were found in close proximity to human bones. The teeth were independently dated by electron spin resonance (ESR) in two laboratories. The ages obtained for the teeth were 29 ± 3 ka (thousands of years) and 24 ± 1 ka. The concretion layer capping this stratum was dated by optically stimulated luminescence (OSL) of the quartz grains to 21 ± 3 ka. As these values were derived independently in three different laboratories, using different methods and equipment, these results are compelling evidence of early habitation in this area. PMID:25456825

  20. [The therapeutic community for recuperation from addiction to alcohol and other drugs in Brasil: in line with or running counter to psychiatric reform?].

    PubMed

    Perrone, Pablo Andrés Kurlander

    2014-02-01

    In the second half of the last century a revolutionary movement began in the world mental health scenario, namely Psychiatric Reform. At the same juncture, the concept was also put forward for Therapeutic Communities, which would later become the tried and tested model for treatment of addiction to alcohol and other drugs. However, due to the alarming increase of this problem in Brazil, as well as the absence of public policies to address the problem, there was an indiscriminate proliferation of chemical dependency internment locations that, despite calling themselves Therapeutic Communities, in no way resembled the initial model proposed. These places featured inhuman and iatrogenic practices, very similar to those criticized by the Psychiatric Reform movement, which consequently discredited the Therapeutic Community model. This article seeks to demonstrate, through bibliographic research, how the conceptual and methodological bases of Psychiatric Reform closely resemble the Therapeutic Communities movement, having appeared at the same time and for the same reason, and how the lack of control and regulation of chemical dependency internment locations in Brazil has contributed to the current disrepute of this model. PMID:24863833

  1. Ocorrência sazonal e reprodução do socó-caranguejeiro Nyctanassa violacea no estuário da Lagoa dos Patos (RS, Brasil), novo limite sul da sua distribuição geográfica

    Microsoft Academic Search

    Dimas Gianuca

    Seasonal occurrence and breeding of the Yellow Crowned Night Heron Nyctanassa violacea in the Patos Lagoon estuary (RS, Brazil): the new southern geographic range of the species. The aim of this note is to report the seasonal occurrence and breeding of Nyctanassa violacea in the Patos Lagoon estuary, southern Brazil, its new southernmost area of occurrence. The Pólvora Island, located

  2. Perfil epidemiológico do suicídio no extremo oeste do estado de Santa Catarina, Brasil Epidemiological profile of suicide in the west of the State of Santa Catarina, Brazil

    Microsoft Academic Search

    Ricardo Schmitt; Maria Gabriela Lang; João Quevedo; Talita Colombo

    Introduction: The State of Santa Catarina is located in Southern Brazil. The suicide rate in this state is one of the largest in the country. Preliminary studies showed that the westernmost region of Santa Catarina has the largest rate in the state. Descriptive studies about suicide epidemiological profile in this area are not available. Method: A descriptive study of suicide

  3. Diversidade de Lepidoptera (Papilionoidea e Hesperioidea) em dois fragmentos de floresta no município de Frederico Westphalen, Rio Grande do Sul, Brasil

    Microsoft Academic Search

    Ricardo Giovenardi; Rocco Alfredo Di Mare; Jonas Sponchiado; Suelem H. Roani; Fábio A. F. Jacomassa; Augusto B. Jung; Mirian A. Porn

    2008-01-01

    Diversity of Lepidoptera (Papilionoidea e Hesperioidea) in two fragments in Frederico Westphalen, Rio Grande do Sul State, Brazil. A systematic survey was carried out in two localities of the Municipal District of Frederico Westphalen, fragment of Villa Faguense and Schoenstatt's Sanctuary, situated 1,500 m apart, from March 2005 to April 2006. In 140 hours of sampling, 3123 individuals, distributed in

  4. Estimation of atmospheric turbidity and surface radiative parameters using broadband clear sky solar irradiance models in Rio de Janeiro-Brasil

    NASA Astrophysics Data System (ADS)

    Flores, José L.; Karam, Hugo A.; Marques Filho, Edson P.; Pereira Filho, Augusto J.

    2015-01-01

    The main goal of this paper is to estimate a set of optimal seasonal, daily, and hourly values of atmospheric turbidity and surface radiative parameters Ångström's turbidity coefficient (?), Ångström's wavelength exponent (?), aerosol single scattering albedo (? o ), forward scatterance (F c ) and average surface albedo (? g ), using the Brute Force multidimensional minimization method to minimize the difference between measured and simulated solar irradiance components, expressed as cost functions. In order to simulate the components of short-wave solar irradiance (direct, diffuse and global) for clear sky conditions, incidents on a horizontal surface in the Metropolitan Area of Rio de Janeiro (MARJ), Brazil (22° 51' 27? S, 43° 13' 58? W), we use two parameterized broadband solar irradiance models, called CPCR2 and Iqbal C, based on synoptic information. The meteorological variables such as precipitable water (u w ) and ozone concentration (u o ) required by the broadband solar models were obtained from moderate-resolution imaging spectroradiometer (MODIS) sensor on Terra and Aqua NASA platforms. For the implementation and validation processes, we use global and diffuse solar irradiance data measured by the radiometric platform of LabMiM, located in the north area of the MARJ. The data were measured between the years 2010 and 2012 at 1-min intervals. The performance of solar irradiance models using optimal parameters was evaluated with several quantitative statistical indicators and a subset of measured solar irradiance data. Some daily results for Ångström's wavelength exponent ? were compared with Ångström's parameter (440-870 nm) values obtained by aerosol robotic network (AERONET) for 11 days, showing an acceptable level of agreement. Results for Ångström's turbidity coefficient ?, associated with the amount of aerosols in the atmosphere, show a seasonal pattern according with increased precipitation during summer months (December-February) in the MARJ.

  5. O beat e o bit do rock brasileiro: internet, indústria fonográfica e a formação de um circuito médio para o rock no Brasil

    Microsoft Academic Search

    Danilo Fraga

    Resumo: Uma das principais características do rock brasileiro é que ele sempre circulou pelo mainstream fonográfico. Em cinqüenta anos de história, o rock brasileiro foi lançado por grandes gravadoras, esteve em trilhas sonoras de telenovelas, entre outros elementos típicos desse modelo de distribuição. Mas, nas últimas duas décadas, é possível notar a formação de um circuito de rock brasileiro entre

  6. Ocorrência de carrapatos em tamanduá-bandeira (Myrmecophaga tridactyla) e tamanduá-mirim (Tamandua tetradactyla) na região do Pantanal Sul Mato-Grossense, Brasil

    Microsoft Academic Search

    João Ricardo Martins; Ísis Meri Medri; Carlos Marcos Oliveira; Alberto Guglielmone

    2004-01-01

    The occurrence of ticks on anteaters in the Pantanal region, Mato Grosso do Sul state, Brazil, between March and February 2001 is described. Tick species identified were Amblyomma cajennense (123 males and 63 females), A. parvum (35 males, 67 females) and A. nodosum (2 males), species considered as specific of anteater in its adult phase. A. cajennense was found in

  7. Cidadania Negada: A Educacao como Instrumento de Combate a Pobreza no Brasil (Denial of Citizenship: Education as a Way to Fight Poverty in Brazil).

    ERIC Educational Resources Information Center

    Germano, Jose Willington

    1995-01-01

    Compares two compensatory social/educational programs developed by the Brazilian government in the last 15 years. States that although one was formulated during the military regime and one during the present government, they both combat poverty and encourage privatization. Concludes that this promotes a process that sees education as social…

  8. Taxonomic Treatment of Solanum Section Petota (Wild Potatoes) in Catálogo de Plantas Vasculares del Cono Sur (Argentina, Chile, Paraguay, Uruguay, y sur del Brasil)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Solanum section Petota (Solanaceae), which includes the cultivated potato (Solanum tuberosum) and its wild relatives, contains over 150 wild species distributed from the southwestern U.S.A. (38°N) to central Argentina and adjacent Chile (41°S). This catalog includes all species from the Southern Con...

  9. 4 Jornada de Educao em Sensoriamento Remoto no mbito do Mercosul 11 a 13 de agosto de 2004 So Leopoldo, RS, Brasil UTILIZAO DE SENSORIAMENTO REMOTO COMO

    E-print Network

    ) 39229618 / (12) 97635841 Email- sufransi@ig.com.br ABSTRACT According to the educational policies educators High School (E E Profª Dinorá Pereira Ramos Brito), at Environmental Education discipline. The specific of the trash volume and mainly their responsibility at all this context as citizen. 1. INTRODUÇÃO Este projeto

  10. O IMPACTO DO COMÉRCIO INTERNACIONAL, DA MUDANÇA TECNOLÓGICA E DA DEMANDA FINAL NA ESTRUTURA DE EMPREGO, POR NÍVEL DE QUALIFICAÇÃO, NO BRASIL, 1985-19951

    Microsoft Academic Search

    Katy Maia

    This article examines the impact of trade liberalization, technological change and final demand on employment structure by skill level, in Brazil, in between 1985 and 1995. In the light of the Heckscher-Ohlin model, we decompose the employment change, using input-output and PNAD data. The results show relative change on the employment structure in favor of the skilled workers, caused by

  11. Valor econômico e sociocultural do ecoturismo e das atividades recreacionais providas pela Área de Proteção Ambiental Serra de São José (MG - Brasil) 1

    Microsoft Academic Search

    Eneida M. G. Campos

    This article estimates the current economic and socio-cultural value of some market and non-market components of ecosystem goods and services provided by São José Mountain (Brazil), and introduces willingness to work voluntarily as a valuation methodology. Located in historic and colonial cities like Tiradentes and São João del Rei, Minas Gerais State (which confers ethical, aesthetic and heritage values), its

  12. Barreiras a superar na gestão descentralizada, participativa e integrada das águas no Brasil Barriers to overcome in the decentralized , participative and integrated management of waters in Brazil

    Microsoft Academic Search

    Adonai Telese; Marcelo Milano; Falcão Vieira

    The decentralized, integrated and participatory management of water resources in Brazil was established by the Law 9.433\\/97, called Law of the Waters, at the National level. This juridical mark establishes national parameters for the implantation of a system that imposes deep alterations to the traditional watershed way - centralized, technical and bureaucratic. The decentralization and the direct participation of the

  13. Determinação de coberturas de alteração intempérica com imagens TM\\/Landsat e dados pedogeoquímicos, na região do Vale do Paraíba, SP, Brasil

    Microsoft Academic Search

    TOMOYUKI OHARA; JAIRO ROBERTO JIMÉNEZ; TAVARES DE MATTOS

    This study was performed at the Upper and Middle Rio Paraíba do Sul valley, localized at the eastern border of São Paulo State. Its objective was to develop a systematic evaluation of the physical environment (Geology, Geomorphology and Soils), using spatial attributes of TM Landsat images. The technique used consisted of an analysis of the textural characteristics of relief and

  14. Caracterização de risco de déficit hídrico nas regiões produtoras de soja no Brasil Characterization of the water deficit for brazilian soybean producing regions

    Microsoft Academic Search

    José Renato Bouças Farias; Eduardo Delgado Assad; Ivan Rodrigues de Almeida; Balbino Antônio; Cláudio Lazzarotto; Norman Neumaier; Alexandre Lima Nepomuceno

    2001-01-01

    In the current globalized agro-scenario, increments in yield and reductions in costs and in risks of failure became basic requirements to the competitiveness. Increased efficiency in the use of resources and inputs, improved quality of farm products and preserved environments are challenges of the modern agriculture. Tools for helping the decision making process are essential to tackle these challenges and

  15. Utilização de imagens do satélite CBERS-2 na atualização do sistema de informação de recursos hídricos do estado do Ceará, Brasil

    Microsoft Academic Search

    Guilherme Marques; Marcus Vinícius; Chagas da Silva

    Nowadays, there is a substantial deficit in the Bra zilian cartography, in terms of updating and generation of new maps and charts. Twenty-five percent of the Brazilian territory, including Amazon, st ill do not have charts in the 1:100.000 scale. The coverage is considerably less if the scale raises, for example to 1:25.000 scale, absent in 99 % of the

  16. Living on the edge: Social and environmental exclusion in the periphery of São Paulo, Brazil Vivendo no limite: Exclusão social e ambiental na periferia de São Paulo, Brasil

    Microsoft Academic Search

    Jutta Gutberlet

    2006-01-01

    Brazil is known for its exuberant affluence next to acute poverty. Most of the government programs that have tackled the issue in the past have failed to eradicate this condition on a broad scale. Widespread no- and low-income neighbourhoods in metropolitan peripheries are a visual example for this. Over centuries historically rooted disadvantage and exploitation have reiterated neopatrimonial conditions. Public

  17. Análise preliminar da dinâmica de implantação de pivôs de irrigação central, de 1985- 2005 na bacia hidrográfica do Alto rio das Mortes - MT, Brasil

    Microsoft Academic Search

    Suzy Mara Klemp

    Present study aims the assessment of the spatio-temporal dynamics of the implantation of center pivot irrigations between 1985-2005 in the upper Rio das Mortes watershed, Mato Grosso state, in order to subsidy decision making in environmental licensing and water resource management. For the mapping, a total of 23 images from the Landsat 5 (E)TM (1985; 1990; 1995 e 2000, scenes

  18. Mental health research in Brazil: policies, infrastructure, financing and human resources A pesquisa em saúde mental no Brasil: políticas, infra-estrutura, financiamento e recursos humanos

    Microsoft Academic Search

    Jair de Jesus Maria; Rodrigo A Bressana; Naomar Almeida-Filho; Jerônimo Gerolin; Pratap Sharan; Shekhar Saxena

    The objective of this descriptive study was to map mental health research in Brazil, providing an overview of infrastructure, financing and policies mental health research. As part of the Atlas-Research Project, a WHO initiative to map mental health research in selected low and middle-income countries, this study was carried out between 1998 and 2002. Data collection strategies included evaluation of

  19. Fsica da UFRGS conquista Prmio L'Oral-Unesco O Brasil um dos vencedores do 15o Prmio L'Oral-Unesco

    E-print Network

    Barbosa, Marcia C. B.

    , do Instituto Nacional de Padrões e Tecnologia e da Universidade de Colorado em Boulder, nos Estados a medicina ou para novas fontes de energia". Marcia Barbosa, por sua vez, entrou na seleta lista por

  20. STATO NOME SEDE Promotori Posti disponibili

    E-print Network

    pagamento di una tassa (c.a. US$ 100 - cfr. accordo al 09/11/2011 sono 400R$) BRASILE UEL - UNIVERSIDADE ESTADUAL DE LONDRINA Giovanni Conti 2 LM http://www.uel.br/ari/ BRASILE UFPR - UNIVERSIDADE FEDERAL DO

  1. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO - BRASIL Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brasil {mgatti, lucena}@inf.puc-rio Rua Marquês de São Vicente, 225 - Gávea 22453-900 Rio de Janeiro RJ Brasil Tel. +55 21 3527-1516 Fax

  2. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO - BRASIL #12;Monograas em Ciência Informática, LES - Rio de Janeiro - Brasil {ionunes,cnunes,lucena}@inf.puc-rio.br, guga@les.inf.puc-rio Marquês de São Vicente, 225 - Gávea 22451-900 Rio de Janeiro RJ Brasil Tel. +55 21 3527-1516 Fax: +55 21

  3. LAJAM 8(1-2): 25-29, December 2010 e-ISSN 2236-1057 / ISSN 1676-7497 Laboratrio de Biodiversidade Molecular, Dept. de Gentica, Inst. Biologia, Ilha do Fundo, Sl. A2-098, Universidade Federal do Rio

    E-print Network

    Solé-Cava, Antonio M.

    Rio de Janeiro, Rio de Janeiro, RJ Brasil 2 Laboratorio de Ecología Molecular de Vertebrados Acuáticos, 310, Santa Teresa, Rio de Janeiro, RJ, 20251-140 Brasil 4 Projeto de Monitoramento de Aves e Mamíferos Marinhos na Bacia de Campos, CENPES/PETROBRAS, Rio de Janeiro, RJ, 21041-210 Brasil 5 ENSP

  4. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brasil {mgatti, guga, rbp,lucena}@inf.puc-rio Departamento de Informática Rua Marquês de São Vicente, 225 - Gávea 22453-900 Rio de Janeiro RJ Brasil Tel. +55

  5. Uma Abordagem Sistemtica de Prototipao Colaborativa para a Criao de Tangveis

    E-print Network

    Barbosa, Alberto

    Depto. Informática PUC-Rio Rua Marquês de São Vicente, 225 Rio de Janeiro, Brasil (+5521)3527-1500 r.4553 dcosta@inf.puc-rio.br Denise Filippo ESDI/UERJ Rua Evaristo da Veiga, 95 Rio de Janeiro, Brasil Vicente, 225 Rio de Janeiro, Brasil (+5521)3527-1500 r.4553 wugulino@inf.puc-rio.br Alberto Raposo Depto

  6. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL #12;Monografias em Ciência Departamento de Informática ­ PUC-Rio Rua Marquês de São Vicente, 225, Rio de Janeiro ­ Brasil, 22453-900 {guga, Rio de Janeiro, Brasil, 22290-270 choren@de9.ime.br Abstract. In open multi-agent systems, in which

  7. Toxicidade de água e sedimentos e comunidade bentônica do estuário do rio Itanhaém, SP, Brasil: bases para a educação ambiental Water toxicity and sediments and benthic community from the estuary of the Itanhaém river, (SP Brazil): basis for environmental education Toxicidad del agua y sedimentos y comunidad béntica del estuario del río Itanhaém, (SP el Brasil): base para la educación ambiental

    Microsoft Academic Search

    Fernanda Voietta Pinna; Denis Moledo de; Souza Abessa; Robson Seriani; Fabiana Lima Silveira; Priscilla Romano

    DESCRITORES: Água, Toxicidade, Comunidade bentônica - Itanhaém Abstract: The Estuary of the Itanhaém River is situated at Baixada Santista, located on the Southern Coast of São Paulo State (23°50'-24°15'S; 46°35'- 47°00'W). This area is now the object of human settlements. Although the estuary seems to be low degraded, the discharge of pollutants into this river may put aquatic life in

  8. Diversity of nutcracking tool sites used by Sapajus libidinosus in Brazilian Cerrado.

    PubMed

    Mendes, Francisco Dyonísio C; Cardoso, Raphael Moura; Ottoni, Eduardo B; Izar, Patrícia; Villar, Daniell Nunes A; Marquezan, Rogério F

    2015-05-01

    Cracking nuts with tools is a behavior documented in a small number of populations of tufted capuchins, mainly in semi-arid Caatinga and Caatinga-Cerrado transitional environments of northeastern Brazil. Only one of these populations inhabits the less arid Cerrado in Central Brazil, where environments are composed of a heterogeneous mosaic of fields, savannas and forest formations. We conducted surveys in 10 of 20 localities where nutcracking by capuchins was reported by the local inhabitants in the Cerrrado of Northern Goiás and Tocantins. Our purpose was to evaluate nutcracking sites (anvils and associated hammers and nuts) based on indirect evidence of extensive pounding of nuts and seeds. Nutcracking was confirmed at all 10 surveyed localities. A total of 270 sites were identified. Surveyed localities included areas that were ecologically similar to those where capuchins crack nuts in Caatinga, as well as less arid localities with more typical Cerrado habitat. Anvils and hammers were made of materials including quartz, limestone, sandstone and wood, and displayed a wider range of sizes (i.e., 60-3,750?g for hammers' weight) than reported at previously studied localities. Nuts of seven genera were found in association with anvils and hammers. We conclude that nutcracking by capuchins are not restricted to arid environments and argue that the occurrence and diversity of nutcracking tool sites result from complex interactions of environmental variables (e.g., availability of food and mineral resources, density of canopy cover) and social variables (e.g., spatial cohesiveness and tolerance among group members) that need to be examined through long-term research of habituated groups. Localities in the Cerrado of Northern Goiás and Tocantins vary considerable in the ecological conditions faced by wild groups, and therefore offer the opportunity to examine these interactions. Am. J. Primatol. 77:535-546, 2015. © 2015 Wiley Periodicals, Inc. PMID:25676549

  9. The northernmost record of Catagonus stenocephalus (Lund in Reinhardt, 1880) (Mammalia, Cetartiodactyla) and its palaeoenvironmental and palaeobiogeographical significance

    NASA Astrophysics Data System (ADS)

    Avilla, Leonardo S.; Müller, Lisiane; Gasparini, German M.; Soibelzon, Leopoldo; Absolon, Bruno; Pêgo, Frederico Bonissoni; Silva, Rafael C.; Kinoshita, Angela; Graciano Figueiredo, Ana Maria; Baffa, Oswaldo

    2013-03-01

    During fieldwork carried out in January 2009 at Aurora do Tocantins (Tocantins State, northern Brazil), we recovered a fragmentary right maxilla (UNIRIO-PM 1006) of Catagonus stenocephalus from a sedimentary deposit of presumed late Pleistocene age in a karstic cave. This paper aims to: (1) provide the first record of C. stenocephalus in the northern region of Brazil (and consequently, also the northernmost one); (2) update the geographic distribution of C. stenocephalus; (3) present a date for the specimen; and (4) discuss the palaeoenvironmental and palaeobiogeographical implications of the finding. The species C. stenocephalus (Lund) is known from the Bonaerian (middle Pleistocene) and Lujanian (late Pleistocene to earliest Holocene) ages in Argentina, Uruguay, Brazil and Bolivia. The new record presented here extends the geographical distribution of C. stenocephalus more than 1000 km north from the former northernmost record (caves of Lagoa Santa region). Peccaries of the genus Catagonus have several morphological features associated with cursorial habits in relatively open and dry environments. The new distributional range of C. stenocephalus is coincident with the Chacoan subregion, characterized by dry climates and open areas. As the studied material comes from the top of the carbonate layer, this may suggest that the deposition of the C. stenocephalus remains described here is synchronous with the onset of a wetter climate phase. This argument is also in accordance with the datation results, around 20 ky BP, just after the last glacial maximum. This increasingly wet climate, which may also be related to the climatic changes that occurred during the late Pleistocene/early Holocene, could be a factor in the extinction of C. stenocephalus in South America.

  10. Molecular characterization and phylogenetic relationships among species of the genus Brycon (Characiformes: Characidae) from four hydrographic basins in Brazil.

    PubMed

    Antunes, R S P; Gomes, V N; Prioli, S M A P; Prioli, R A; Júlio, H F; Prioli, L M; Agostinho, C S; Prioli, A J

    2010-01-01

    Brycon is one of the main genera of Neotropical freshwater fish. In Brazil, Brycon species have been found in many hydrographic basins, such as the Amazon, Paraná, Paraguay, and Araguaia-Tocantins basins. We examined the phylogenetic relationships among the species Brycon orbignyanus, B. hilarii, B. cf. pesu, B. cephalus, B. falcatus, and B. gouldingi, using mitochondrial and nuclear molecular markers. Specimens of B. orbignyanus were collected in the Paraná River. Specimens of B. hilarii were collected in the Manso River. Specimens of B. cephalus were obtained from a fish farm, and specimens of B. cf. pesu, B. falcatus and B. gouldingi were sampled in the Araguaia-Tocantins basin. DNA extraction was carried out using the phenol/chloroform method. Molecular polymorphism studies of Brycon species were carried out with the inter-simple sequence repeat (ISSR) technique, using the total DNA of six specimens of each species. In DNA amplification of B. cf. pesu, eight specimens were used. The partial sequence of mitochondrial cytochrome b was amplified by PCR. The PCR products were used directly in sequencing reactions. Each ISSR primer produced from 7 to 14 scorable and reproducible bands. The (GGAC)(3)A and (GGAC)(3)C primers produced the greatest number of species-specific bands. A 264-bp fragment, corresponding to the partial region of mitochondrial DNA cytochrome b, was sequenced and used for analysis. According to the phylogenetic tree obtained from the data, these Brycon species can be divided into two clades: one comprised only B. cf. pesu, and the second comprised the remaining Brycon species. We conclude that ISSR primers can be used for the identification of species-specific bands in fish, such as Brycon spp. PMID:20449799

  11. Population dynamics of Aceodromus convolvuli (Acari: Mesostigmata: Blattisociidae) on spontaneous plants associated with Jatropha curcas in central Brazil.

    PubMed

    Cruz, Wilton P; Sarmento, Renato A; Pedro-Neto, Marçal; Teodoro, Adenir V; Rodrigues, Diego M; de Moraes, Gilberto J

    2014-11-01

    Spontaneously growing plants are commonly considered competitors of cultivated plants. Owing to the lack of specificity of many arthropods, spontaneous plants may be attacked by the same arthropods that attack cultivated plants and they may also harbor natural enemies of organisms harmful to cultivated plants. Aceodromus convolvuli Muma (Blattisociidae) has been reported recently in relatively large numbers in Tocantins state, central Brazil, mostly on Helicteres guazumifolia Kunth (Malvaceae). Very little has been reported about the population dynamics of blattisociid mites under field conditions. The objective of this work was to study the population dynamics of A. convolvuli in Gurupi, Tocantins state, to evaluate its possible interaction with associated mites. Monthly samples were taken from leaves of the 11 most abundant and frequent spontaneous plants in a Jatropha curcas L. (Euphorbiaceae) plantation. About 96.5 % of the specimens of A. convolvuli were collected in the rainy season. The patterns of variation of the population of A. convolvuli and of predators belonging to the family Phytoseiidae were similar, but A. convolvuli was much more numerous than all phytoseiid specimens combined. Highly significant correlations were observed between A. convolvuli densities and relative humidity or diversity of spontaneous plants. When only mites on H. guazumifolia were considered, highly significant correlation was also observed between densities of A. convolvuli and of mites of the family Tetranychidae. The results suggested that A. convolvuli could be a predator of tenuipalpid and/or tetranychid mites. Studies about its biology are needed to determine its preferred food sources and potential as biological control agent. PMID:24943489

  12. Instituto de Relaes Internacionais Rua Marqus de So Vicente, 225 -Casa 20 -Gvea -22453-900

    E-print Network

    -900 Rio de Janeiro - Brasil - Tel. (21) 3527-1557/1558 - FAX/Tel. (21) 3527-1560 e-mail: iripuc@puc-rio de São Vicente, 225 - Casa 20 - Gávea - 22453-900 Rio de Janeiro - Brasil - Tel. (21) 3527 - 22453-900 Rio de Janeiro - Brasil - Tel. (21) 3527-1557/1558 - FAX/Tel. (21) 3527-1560 e-mail: iripuc@puc-rio

  13. La Leche League International

    MedlinePLUS

    ... Spanish) Australia (English) Austria, La Leche Liga Österreich (German) Barbados (English) Belgium (Dutch) Belgium (French, German, English) Bermuda (English) Bolivia (Spanish) Brasil (English, Portuguese) ...

  14. CARACTERÍSTICAS FÍSICO-QUÍMICAS DE AMOSTRAS DE MÉIS DE Apis mellifera L. DO EST ADO DO CEARÁ, BRASIL Physicochemical characteristics of Apis mellifera L. honey samples from the state of Ceará, Brazil

    Microsoft Academic Search

    Augusta Carolina de Camargo; Carmello Moreti; Geni da Silva Sodré; Luís Carlos Marchini; Ivani Pozar Otsuk

    This paper was carried out to determine how the honey samples of the State of Ceará, Brazil may be grouped, based on the physicochemical composition of the honey. The samples were collected in different municipalities. Among the 52 honey samples analyzed it was observed that the samples which have Sejania sp. as dominant or accessory pollen form a different sub-group

  15. Prevalência de colonização por estreptococos do grupo B em gestantes atendidas em maternidade pública da região Nordeste do Brasil Prevalence of colonization by group B Streptococcus in pregnant women from a public maternity of Northwest region of Brazil

    Microsoft Academic Search

    Professora Doutora

    PuRPOse: to assess the prevalence of group B streptococcus colonization (GBS) in pregnant women in prodrome or in labor. MethOds: vaginal and rectal cultures were collected from 201 pregnant women, in the admission sector of a public maternity center in the northeast region of Brazil (São Luís, Maranhão). The samples obtained were inoculated in a Todd-Hewith's selective culture medium and

  16. Fluorine content of several brands of chocolate bars and chocolate cookies found in Brazil Conteúdo de flúor em diversas marcas de chocolate e bolachas de chocolate encontradas no Brasil

    Microsoft Academic Search

    Marília Afonso; Rabelo Buzalaf; José Mauro Granjeiro; Vanessa Eid da Silva Cardoso; Thelma Lopes da Silva; Kelly Polido; Kaneshiro Olympio

    Chocolate bars and chocolate cookies are foodstuffs highly appreciated by children. The possibility of hav- ing fluorine (F) among their components, associated with an excessive consumption, may make them decisive contri- butors to the total daily F intake. Thus, they could participate in the establishment of dental fluorosis. The aim of this study was to analyze the fluorine concentration (F)

  17. Distribution and quantification of Candidatus Liberibacter americanus, agent of huanglongbing disease of citrus in São Paulo State, Brasil, in leaves of an affected sweet orange tree as determined by PCR.

    PubMed

    Teixeira, Diva C; Saillard, Colette; Couture, Carole; Martins, Elaine C; Wulff, Nelson A; Eveillard-Jagoueix, Sandrine; Yamamoto, Pedro T; Ayres, Antonio J; Bové, Joseph M

    2008-06-01

    Huanglongbing (HLB), an insect-transmitted disease of citrus, known for many years in Asia and Africa, has appeared in the state of São Paulo State (SSP), Brazil, in 2004, and the state of Florida, USA, in 2005. HLB endangers the very existence of citrus, as trees infected with the bacterial pathogen, irrevocably decline. In the absence of curative procedures, control of HLB is difficult and only based on prevention. Even though not available in culture, the HLB bacterium could be shown to be Gram-negative and to represent a new candidate genus, Candidatus Liberibacter, in the alpha subdivision of the Proteobacteria. Three Candidatus (Ca.) L. species occur: Ca. L. africanus in Africa, Ca. L. asiaticus in Asia, SSP, and Florida, and Ca. L. americanus in SSP. The liberibacters occur exclusively in the phloem sieve tubes. On affected trees, HLB symptoms are often seen on certain branches only, suggesting an uneven distribution of the Liberibacter. Occurrence of Ca. L. americanus, the major HLB agent in SSP, has been examined in 822 leaf samples from an affected sweet orange tree by two conventional PCR techniques and a newly developed real time (RTi) PCR, also used for quantification of the Liberibacter in the leaves. Even though RTi-PCR was able to detect as few as 10 liberibacters per gram of leaf tissue (l/g), no liberibacters could be detected in any of the many leaf samples from a symptomless branch, while in blotchy mottle leaves from symptomatic branches of the same tree, the Liberibacter titer reached values as high as 10(7)l/g. These results demonstrate the uneven distribution of the Liberibacter in HLB-affected trees. PMID:18400468

  18. Attractiveness of investments on Hydroeletric Power Generation in Brazil - Topics on new hydroelectric energy trading A Atratividade do Investimento em Geração de Energia Hidrelétrica no Brasil - Aspectos da Comercialização de Energia Elétrica proveniente de novos empreendimentos

    Microsoft Academic Search

    Almeida Prado

    The brazilian eletric regulatory model was passed in march 2004 and brought new rules for hydroeletric generation concessions auctions and for new hydroelectric energy trading. On this new model, the generators may trade the energy produced in two different market environments: Environment for Regulated Trading (ACR), in which the energy is traded among generators and utilities concessionaries and Environment for

  19. MEMÓRIA VISUAL DO CICLO DO CAFÉ : ETNOCÍDIO E DESTERRITORIALIZAÇÃO INDÍGENA NO SUL E SUDESTE DO BRASIL VISUAL MEMORY IN COFFEE PLANTATION BELTS: INDIAN EXTERMINATION IN SOUTHERN AND SOUTHEASTERN BRAZIL

    Microsoft Academic Search

    José Antônio; Souza de Deus

    This paper examines a college teaching experience once developed in Minas Gerais Federal University (UFMG). The main goal of the research was the exploration of links between scientific knowledge (Geography and History) and Arts (at first, Photography), in order to explain and to rewrite ideas and issues concerning a suggestive and emblematic period of Brazil's history: Coffee Cycle . Agricultural

  20. A spatial approach for the epidemiology of antibiotic use and resistance in community-based studies: the emergence of urban clusters of Escherichia coli quinolone resistance in Sao Paulo, Brasil

    PubMed Central

    2011-01-01

    Background Population antimicrobial use may influence resistance emergence. Resistance is an ecological phenomenon due to potential transmissibility. We investigated spatial and temporal patterns of ciprofloxacin (CIP) population consumption related to E. coli resistance emergence and dissemination in a major Brazilian city. A total of 4,372 urinary tract infection E. coli cases, with 723 CIP resistant, were identified in 2002 from two outpatient centres. Cases were address geocoded in a digital map. Raw CIP consumption data was transformed into usage density in DDDs by CIP selling points influence zones determination. A stochastic model coupled with a Geographical Information System was applied for relating resistance and usage density and for detecting city areas of high/low resistance risk. Results E. coli CIP resistant cluster emergence was detected and significantly related to usage density at a level of 5 to 9 CIP DDDs. There were clustered hot-spots and a significant global spatial variation in the residual resistance risk after allowing for usage density. Conclusions There were clustered hot-spots and a significant global spatial variation in the residual resistance risk after allowing for usage density. The usage density of 5-9 CIP DDDs per 1,000 inhabitants within the same influence zone was the resistance triggering level. This level led to E. coli resistance clustering, proving that individual resistance emergence and dissemination was affected by antimicrobial population consumption. PMID:21356088

  1. Planificacion linguistica y constitucion de un bloque regional: El caso del Mercosur (Argentina, Brasil, Paraguay y Uraguay) y de Chile (Language Planning and the Constitution of a Regional Bloc: The Case of Mercosur (Argentina, Brazil, Paraguay, and Uruguay) and Chile.

    ERIC Educational Resources Information Center

    Chareille, Samantha

    2003-01-01

    The common market of the South is a new linguistic and cultural area. The resurgence of innermost identities within member states proves that Mercosur identity can neither be universal nor specific. The outcome of this quest for identity will depend on the ability to carefully handle an area of cultural diversity and a place of common allegiance…

  2. Zoneamento de riscos climáticos para a cultura de milho na Região Centro-Oeste do Brasil e para o estado de Minas Gerais Climatic risks zoning for maize production in West-Center Region and in Minas Gerais state, Brazil

    Microsoft Academic Search

    Luiz Marcelo Aguiar Sans; Eduardo Delgado Assad; Daniel Pereira Guimarães; Gisela Avellar

    2001-01-01

    Resumo - Para a cultura de milho, a água é um fator limitante, principalmente, na fase de germinação e nos períodos de floração e enchimento de grãos. Desta forma, conhecer os elementos climáticos é uma estratégia para definir manejos que possibilitem minimizar riscos climáticos, contribuindo para melhorar a política de alocação de recursos para crédito agrícola e para o aumento

  3. QUALIDADE DA ÁGUA DO RIBEIRÃO LA VRINHA NA REGIÃO ALTO RIO GRANDE - MG , BRASIL 1 Water quality on Lavrinha Stream in Alto Rio Grande region, Minas Gerais State, Brazil

    Microsoft Academic Search

    Daniel Brasil Ferreira Pinto; Antônio Marciano da Silva; Carlos Rogério de Mello; Gilberto Coelho

    The main purpose of this work was to study the surface water quality behavior, continuously throughout the time, at the headwater watershed of the Grande River, MG. The watershed drains into Grande River area of 687 ha and is enclosed by the Mantiqueira Mountains. The samples were collected at six points in Lavrinha Stream, main tributary of the watershed, from

  4. GEOTURISMO: UMA NOVA FORMA DE ATRAÇÃO TURÍSTICA - ESTUDO DE CASO NA ALTA BACIA DO RIO CORUMBATAÍ, SÃO PAULO, BRASIL GEOTOURISM: NEW WAY OF TOURIST ATTRACTION - CASE STUDY AT THE CORUMBATAI RIVER REGION, SÃO PAULO, BRAZIL

    Microsoft Academic Search

    André Riani Costa Perinottoi

    This paper presents geologic arguments for touristic places both established or potential. Besides it deals with sustainable regional tourism activities which have as focus the water resources rational usage. The region under analysis has high potential for natural tourism activities. As a case study it was taken the Cuestas region that belongs to the Environmental Preservation Area \\

  5. Structure and feeding of a stream fish assemblage in Southeastern Brazil: evidence of low seasonal influences Estrutura e alimentação de uma comunidade de peixes em um riacho no sudeste do Brasil: evidências de baixa influência sazonal

    Microsoft Academic Search

    L. Casatti; Rua Cristóvão Colombo; Jardim Nazareth

    Aim: The present study was developed in a deforested stream located in a region that exhibits marked seasonality with the purpose to investigate whether ecological descriptors of the quantitative structure (i.e., composition, abundance, biomass, species richness, diversity) and feeding of fishes do change between the dry and wet periods. Methods: Sampling was conducted bimonthly from April 2004 to February 2005

  6. Integração do sensoriamento remoto e sistema de informações geográficas (SIG) para identificação, mapeamento e classificação do uso da terra e cobertura vegetal numa parte do Agreste Paraibano no Brasil

    Microsoft Academic Search

    Harendra S. Teotia; George do Nascimento Ribeiro; Paulo Roberto; Megna Francisco

    The integration of remote sensing and geographical information systems (SIG) has a great significance in the study and preservation of the natural resources, such as Soil and Land. The present study was carried out over a part of the Agreste region of the state of Paraiba. The area covered by the Puxinanã and Pocinhos municipalities was mapped through the technologies

  7. Relief influence on tree species richness in secondary forest fragments of Atlantic Forest, SE, Brazil

    Microsoft Academic Search

    William Goulart da Silva; Jean Paul Metzger; Luis Carlos Bernacci; Eduardo Luís Martins Catharino; Giselda Durigan; Sílvio Simões

    2008-01-01

    RESUMO - (Influência do relevo na riqueza de espécies arbóreas em fragmentos de floresta secundária de Mata Atlântica, SE, Brasil). O objetivo deste trabalho foi explorar a relação entre a riqueza de espécies arbóreas com as características morfológicas do relevo no Planalto de Ibiúna (SE, Brasil). Foram amostrados 61 blocos de 0,30 ha, sistematicamente estabelecidos em 20 fragmentos de floresta

  8. NOVAS APLICAES MULTIMDIA NA INTERNET 2 V. Bastos, E.Bergamini#, L. Ceze, T.C.M.B. Carvalho, J. Figueiredo*, S.S. Furuie*,

    E-print Network

    Ceze, Luis

    José dos Campos, SP, Brasil *InCor ­ Instituto do Coração-HC FMUSP, São Paulo, Brasil LARC experimentos foram coordenados pela Profa. Dra. Tereza Cristina M. de B. Carvalho. O objetivo principal deste artigo e documentar e relatar tais experimentos. 2. Infra-estrutura de Rede Para a realização das

  9. Rastreamento de Multiplas Larvas utilizando Tecnicas de Vis~ao Computacional: Resultados Preliminares

    E-print Network

    Lewiner, Thomas (Thomas Lewiner)

    Preliminares Jaime Henrique Ferreira de S´a Queiroz e Hemerson Pistori INOVISAO UCDB Campo Grande, Brasil, MS Biotecnologia UCDB Campo Grande, Brasil, MS portokra@ucdb.br,arroel@ucdb.br Resumo--Este artigo apresenta os resultados preliminares de um experimento com filtros de part´iculas para rastreamento de m´ultiplas larvas

  10. ARTIGO ORIGINAL 1 Mestre em Clnica Cirrgica pela UFPR; Professor do Curso de Especializao em Traumatologia Esportiva e Artroscopia da UFPR; Membro do Servio de Ortopedia e

    E-print Network

    Hammerton, James

    Traumatologia Esportiva e Artroscopia da UFPR; Membro do Serviço de Ortopedia e Traumatologia do Hospital do Esportiva da UFPR; Membro do Serviço de Ortopedia e Traumatologia da UFPR ­ Curitiba, PR, Brasil. 4 ­ Doutor Artroscopia da UFPR; Membro do Serviço de Ortopedia e Traumatologia da UFPR ­ Curitiba, PR, Brasil. 5 ­ Médico

  11. 76 FR 36923 - Formations of, Acquisitions by, and Mergers of Bank Holding Companies; Correction

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-23

    ...New York heading, the entry for Banco do Brasil S.A., Brasilia, Brazil, is revised to read as follows: A. Federal Reserve...York, New York 10045-0001: 1. Banco do Brasil S.A., Brasilia, Brazil, and Caixa de Previdencia dos Funcionarios do...

  12. Interannual variability in water storage over 2003-2007 in the Amazon Basin2 from GRACE space gravimetry, in situ river level3

    E-print Network

    Boyer, Edmond

    Keywords: GRACE, Hydrology, Climate Change, ENSO, South America.42 hal-00708050,version1-14Jun2012 #12 Hidrologia, Ilha do Fundão, Zip Code:9 21945-970, Rio de Janeiro-RJ, Brasil , Phone: +552125627837, Fax) ­ Av. Horácio Macedo, 354- Cidade Universitária - Ilha13 do Fundão, Rio de Janeiro - RJ - Brasil - Cep

  13. LQES Laboratrio de Qumica do Estado Slido Instituto de Qumica -UNICAMP http://lqes.iqm.unicamp.br Nanocincia e Nanotecnologia: um bom motivo para a

    E-print Network

    Campinas, Universidade Estadual de

    ://lqes.iqm.unicamp.br Nanociência e Nanotecnologia: um bom motivo para a Cooperação Científica Brasil-Argentina Oswaldo Luiz Alves, Campinas, SP, Brasil. oalves@iqm.unicamp.br 1. Introdução A Nanociência e a Nanotecnologia (N&N) - áreas do Nanociências e Nanotecnologia. Fazendo uso da Internet e, algumas vezes, das facilidades de vídeo

  14. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO - BRASIL #12;Monograas em, Computer Science Department, LES - Rio de Janeiro - Brazil 2 Federal University of Rio Grande do Norte Marquês de São Vicente, 225 - Gávea 22451-900 Rio de Janeiro RJ Brasil Tel. +55 21 3527-1516 Fax: +55 21

  15. Enacting Collaboration via Storytelling in Second Andria Pereira1

    E-print Network

    Barbosa, Alberto

    University of Rio de Janeiro (PUC- Rio) R. Marquês de São Vicente, 225, Rio de Janeiro, RJ, 22453-900, Brasil 2 Superior School of Industrial Design ­ State University of Rio de Janeiro Rua Evaristo da Veiga, 95, Rio de Janeiro, RJ, 22031-040, Brasil 3 Groupware@LES R. Marquês de São Vicente, 225, Rio de

  16. Mem Inst Oswaldo Cruz, Rio de Janeiro, Vol. 104(8): 1083-1090, December 2009 1083 online | memorias.ioc.fiocruz.br

    E-print Network

    Burnstock, Geoffrey

    Mem Inst Oswaldo Cruz, Rio de Janeiro, Vol. 104(8): 1083-1090, December 2009 1083 online | memorias Inovações Terapêuticas, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, RJ, Brasil 2 Autonomic Neuroscience de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil

  17. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    Departamento de Informática PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO - BRASIL #12;Monografias em Ciência da Computação, No. 16/09 ISSN: 0103 Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brasil {mgatti, lucena, afgarcia}@inf.puc-rio.br Abstract

  18. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO - BRASIL #12, Computer Science Department, LES - Rio de Janeiro - Brazil 2 Federal University of Rio Grande do Norte Vicente, 225 - Gávea 22451-900 Rio de Janeiro RJ Brasil Tel. +55 21 3527-1516 Fax: +55 21 3527-1530 E

  19. 1Mem Inst Oswaldo Cruz, Rio de Janeiro, Vol. 97: 000-000, 2002 Study of the Safety, Immunogenicity and Efficacy of Attenuated

    E-print Network

    Beverley, Stephen M.

    1Mem Inst Oswaldo Cruz, Rio de Janeiro, Vol. 97: 000-000, 2002 Study of the Safety, Immunogenicity Evandro Chagas-Fiocruz, Av. Brasil 4365, 21045-900 Rio de Janeiro, RJ, Brasil ***Department of Molecu- lar at Fiocruz (Rio de Janeiro, Brazil). +Corresponding author. Fax: +55-21-2280.1589. E-mail: grimaldi

  20. CONFIGURING A COLLABORATIVE VIRTUAL WORKSPACE FOR DISASTER MANAGEMENT OF

    E-print Network

    Barbosa, Alberto

    , Rio de Janeiro, RJ, 22453-900, Brasil, Phone 55-21-2512-5984, enio@tecgraf.puc-rio.br 2 Professor, Tecgraf, Dept. of Computer Science, PUC-Rio, Rua Marquês de São Vicente 225, Rio de Janeiro, RJ, 22453 São Vicente 225, Rio de Janeiro, RJ, 22453-900, Brasil, Phone 55-21-2512-5984, mgattass@tecgraf.puc-rio

  1. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Barbosa, Alberto

    de Informática PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL #12;PUC RIO - DEPARTAMENTO DE INFORMÁTICA ISSN 0103 Rio de Janeiro ­ PUC-Rio R. Marquês de São Vicente, 225, 22453-900. Rio de Janeiro, Brasil. http://www.les.inf.puc-rio

  2. An Architecture for Hypermedia Systems Using MHEG Standard Objects Interchange

    E-print Network

    Colcher, Sérgio

    . Soares Departamento de Informática, PUC-Rio R. Marquês de São Vicente 225 22453 - Rio de Janeiro, RJ 4624 20001 - Rio de Janeiro, RJ - Brasil E-mail: casanova@vnet.ibm.com Sérgio Colcher Departamento de Informática, PUC-Rio R. Marquês de São Vicente 225 22453 - Rio de Janeiro, RJ - Brasil E-mail: colcher@inf.puc-rio

  3. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL #12;PUC RIO - DEPARTAMENTO DE INFORMÁTICA ISSN 0103-9741 Monografias em Ciência da Rio de Janeiro ­ PUC-Rio Rua Marquês de São Vicente, 225, 22453-900. Rio de Janeiro, Brasil. [lucena,hugo]@inf.puc-rio

  4. Braz. Arch. Biol. Technol. v.52 n.3: pp. 629-636, May/June 2009 Vol.52, n. 3: pp. 629-636, May-June 2009

    E-print Network

    Paiva, Paulo Cesar de

    Laboratório de Pesquisas Costeiras e Estuarinas; Universidade Federal do Rio de Janeiro; Hangar da Ponta do Catalão; Rio de Janeiro - RJ - Brasil. 2 Laboratório de Benthos; Departamento de Biologia Marinha; Universidade Federal do Rio de Janeiro; Rio de Janeiro - RJ - Brasil. 3 Laboratório de Echinodermata

  5. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    Departamento de Informática PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO - BRASIL #12;Monografias em Ciência da Computação, No. 53/08 ISSN: 0103, Rio de Janeiro ­ RJ ­ Brasil {milene, mauserr}@les.inf.puc-rio.br {lucena}@inf.puc-rio.br Abstract

  6. Vision, Robotics and Images Research Group, UFPR 1 GPU-accelerated PSF Estimation with a

    E-print Network

    Vision, Robotics and Images Research Group, UFPR 1 GPU-accelerated PSF Estimation) Kiepenheuer Institute for Solar Physics, Freiburg, Germany #12;Vision, Robotics and Images Research Group, UFPR 2 BrasilBrasil #12;Vision, Robotics and Images Research Group, UFPR 3 ParanáParaná #12;Vision

  7. Latitudinal gradients in Atlantic reef fish communities: trophic structure and spatial use patterns

    E-print Network

    Floeter, Sergio Ricardo

    , 28 013-600, Brasil, Depto. de Oceanografia, IEAPM, Rua Kioto 253, Arraial do Cabo, RJ, 28 930-000, Brasil and §Center for Tropical Marine Ecology (ZMT), Fahrenheitstrasse 6, 28 359, Bremen, Germany in reef fish communities. The results supported the hypothesis of differential use of food resources among

  8. Desenvolvimento de um Sistema para Anlise da Variabilidade da Freqncia Cardaca

    E-print Network

    Carvalho, João Luiz

    ), Departamento de Engenharia Elétrica (ENE), Faculdade de Tecnologia (FT), Universidade de Brasília (UnB), Brasil Medicina (FMD), Universidade de Brasília (UnB), Brasil, 70910-090 Fone: +55 61 307 2274, Fax: +55 61 273

  9. CURSO DE PS-GRADUAO EM ENGENHARIA E TECNOLOGIA ESPACIAIS

    E-print Network

    , EPUSP, Brasil, 1989 Chen Ying An, Doutor, ITA, Brasil, 1998 Eduardo Abramof, Doutor, Univ. Johannes Kepler, Áustria, 1993 Enzo Granato, Ph.D., Brown University, E.U.A., 1986 Erasmo Assumpção de Andrade e

  10. Influence of El Nino and ITCZ on Brazilian River Streamflows

    NASA Astrophysics Data System (ADS)

    Lopes, A.; Dracup, J. A.

    2010-12-01

    This study analyzes effects of climatic phenomena El Nino and ITCZ latitudinal movements on streamflow patterns in major Brazilian river basins: Amazon (north), Araguaia-Tocantins (central-north), Parana (central-south) and Sao Francisco (central-northeast). Multiple correlation between annual streamflows and the NINO 3.4 and North Tropical Atlantic SST indexes (NTA) were analyzed for each river basin using different annual periods in order to account for the delay in streamflow response. The data consists of unimpaired river discharge time series at key points (from the Brazilian National Water Agency (ANA)); normalized yearly averaged NINO3.4 index characterizing El Nino (from NOAA); and NTA index (from NOAA), as a surrogate of the latitudinal movement of the ITCZ, since it is correlated to the Atlantic SST gradient. As a result, each river basin showed a different response. At the Amazon river basin, almost all dry years occurred when NINO3.4 was above average (El Nino years). Moreover, in almost every year when NINO3.4 was below average (La Nina) the streamflows were above average. Thus, it seems that La Nina have strong effects in floods in Amazon river. Moreover, El Nino events seem to be a necessary, but not sufficient condition for low streamflows at Amazon river. A weaker relationship was found for Xingu river basin, since it is probably affected by cold fronts from the south. As the location of river basins changes towards the south, the effect of El Nino events gets weaker as for Araguaia-Tocantins and Sao Francisco river basins. At the Parana river basin, the relationship is reversed. Almost all extreme wet years occurred during El Nino years. The correlation between streamflows and the NTA indexes were very weak for all river basins except for the Amazon. When the NTA anomaly is negative, wet years occurs, since the ITCZ moves southwards and stays longer at that position, increasing rainfall over the Amazon and Northeast of Brazil. In contrast, almost all dry years occurred when the NTA index was positive. Annual streamflows were regressed on climatic indexes NINO 3.4 and NTA. At 95% level of significance, NINO3.4 and NTA indexes are significant variables in predicting streamflows at the Amazon (p=0.01% for NINO3.4 and p=0.30% for NTA) and at the Parana river basins (p=0.23% for NINO3.4 and p=1.11% for NTA). The values of R2 were significant high, 0.59 for Amazon and 0.26 for Parana, compared to very low values for Xingu (0.10), Araguaia-Tocantins (0.06) and Sao Francisco (0.04) river basins. The low correlation at central basins can be explained from the regression coefficients values. The coefficients for NTA index are all negative (except for Xingu river), indicating that negative NTA implies in greater streamflow and vice-versa. However, coefficients for NINO3.4 are negative at the Amazon and positive at Parana which means that negative anomalies (La Nina years) implies in greater streamflows at Amazon and lower streamflows at Parana and vice-versa. Opposite effects of El Nino/La Nina on north and south river basins seems to be neutralized in the central river basins so the correlation gets weaker: during El Nino (La Nina) events, the reduction (increasing) in rainfall at north is counter balanced by the enhancement (reduction) of rainfall at south associated with cold fronts.

  11. Physiochemical characterisation of biomass burning plumes in Brazil during SAMBBA

    NASA Astrophysics Data System (ADS)

    Morgan, William; Allan, James; Flynn, Michael; Darbyshire, Eoghan; Hodgson, Amy; Johnson, Ben; Haywood, Jim; Longo, Karla; Artaxo, Paulo; Coe, Hugh

    2013-04-01

    Biomass burning represents one of the largest sources of particulate matter to the atmosphere, which results in a significant perturbation to the Earth's radiative balance coupled with serious negative impacts on public health. Globally, biomass burning aerosols are thought to exert a small warming effect of 0.03 Wm-2, however the uncertainty is 4 times greater than the central estimate. On regional scales, the impact is substantially greater, particularly in areas such as the Amazon Basin where large, intense and frequent burning occurs on an annual basis for several months (usually from August-October). Furthermore, a growing number of people live within the Amazon region, which means that they are subject to the deleterious effects on their health from exposure to substantial volumes of polluted air. Results are presented here from the South American Biomass Burning Analysis (SAMBBA), which took place during September and October 2012 over Brazil. A suite of instrumentation was flown on-board the UK Facility for Airborne Atmospheric Measurement (FAAM) BAe-146 research aircraft. Measurements from the Aerodyne Aerosol Mass Spectrometer (AMS) and Single Particle Soot Photometer (SP2) form the major part of the analysis presented here. The aircraft sampled several fires in close proximity (approximately 150m above the most intense fires) in different areas of Brazil. This included two extensive areas of burning, which occurred in the states of Rondonia and Tocantins. The Rondonia fire was largely dominated by smouldering combustion of a huge single area of rainforest with a visible plume of smoke extending approximately 80km downwind. The Tocantins example contrasted with this as it was a collection of a large number of smaller fires, with flaming combustion being more prevalent. Furthermore, the burned area was largely made up of agricultural land in a cerrado (savannah-like) region of Brazil. Initial results suggest that the chemical nature of these fires differed markedly, with BC concentrations being an order of magnitude greater in the Tocantins case (up to 50 ?g m-3 of BC) compared with the Rondonia case (up to 5 ?g m-3 of BC). Organic matter (OM) concentrations were similar in both cases, with maximum concentrations peaking between 4-5 mg m-3. Such concentrations are approximately more than 100 times greater than those sampled in the "background" regional haze. This variation of BC to OM ratio has potentially large implications for the radiative balance in the respective regions, as BC represents the major absorbing component of biomass burning aerosol. Further analysis will compare the aerosol mass concentrations with gas phase species, as well as probing the chemical and physical evolution of the aerosol as it advects downwind and is diluted with regional air. In particular, such analyses will focus upon the aging of the organic aerosol component as well as examining how the mixing state of the BC particles evolves. Such properties have important implications for the life cycle and formation of particulate material, which governs its subsequent impacts.

  12. Magnetic expression of the Transbrasiliano Lineament, Brazil

    NASA Astrophysics Data System (ADS)

    Vidotti, R. M.; Curto, J. B.; Fuck, R. A.; Dantas, E. L.; Roig, H. L.; Almeida, T.

    2011-12-01

    The Transbrasiliano lineament is a continental-sized discontinuity exposed between the Amazonian craton and the eastern portion of the South American Platform. It is over 3,000 km long, extending from northern Paraguay, across the Tocantins Province and the Phanerozoic Paraná and Parnaíba basins, down to the Ceará Atlantic coast. In the context of West Gondwana, this large continental structure extends to the African continent along the 4o30 lineament. Its NE-SW preferential trend is marked by strong magnetic anomalies at the crustal level and by low velocity zones of S waves within the mantle, suggesting lithosphere thinning. On the surface the Transbrasiliano lineament translates as aligned drainage and ridges in the continental relief, and is comprised of a set of N20-50E Late Neoproterozoic ductile right-lateral shear zones, brittlely reactivated during the Mesozoic. Different interpretations were forwarded along the years, suggesting that the lineament represents a mega-suture active during Gondwana Supercontinent amalgamation, in the Late Neoproterozoic and Early Paleozoic, or seeing the strike-slip ductile faults as the result of shearing related with post-collision stages of the Brasiliano orogeny. Fault reactivation is believed to have controlled graben formation, sediment accumulation and magmatism of the Jaibaras basin in NW Ceará, as well as the establishing of depocentres within the Paraná and Parnaíba basins, influencing also sedimentation at the Atlantic coast. Although a direct link with the lineament has not been established, nearby areas are the site of seismic activity, mainly in NW Ceará and close to the Goiás-Tocantins border in central Brazil. The lineament is covered by aeromagnetic surveys collected over decades. Qualitative interpretation of magnetic and remote sensing data shows that the Transbrasiliano lineament is comprised of a system of ductile shear zones, forming parallel sets of faults penetrating below the large Paraná and Parnaiba intracontinental syneclises with almost continuous traces. Main direction is N45E, connected with splays of E-W and N-S secondary lineaments. Magnetic lineaments developed dominantly along the borders of crustal/lithospheric blocks, determining their limits. Magnetic Euler deconvolution preliminary results indicates depths up to 5 km. The magnetic lineaments continue below the intracratonic Phanerozoic basins, where brittle fault zones characterize several tectonic reactivation events from the Cambrian up to the Cenozoic. These results stress the outstanding role of the Transbrasiliano lineament in the tectonic framework of the Brazilian continental crust/lithosphere and the relevance of its set of faults in the infilling and evolution of large intracontinental Phanerozoic syneclises.

  13. Flexural Stresses are a Major Factor to Enhance Intraplate Seismicity in Central Brazil

    NASA Astrophysics Data System (ADS)

    Assumpcao, M.; Sacek, V.

    2012-12-01

    Explaining intraplate seismic activity has been a challenging task. Several different models have been proposed combining weak crustal zones and mechanisms of stress concentration. Here we propose that stress concentration due to flexural deformation is one of the most important factors to explain seismicity in Central Brazil, especially the SW-NE oriented seismic zone between the Amazon and the São Francisco cratons, called "Goiás-Tocantins Seismic Zone" (GTSZ). This activity has been usually associated with the TransBrasiliano Lineament (TBL), a major Paleozoic transcontinental feature. However, two observations cast doubt on a direct relationship with the Lineament. First, the seismic activity in the Tocantins province is parallel but not coincident with the TBL; secondly, the continental scale TransBrasiliano Lineament shows no seismic activity further to the NE (beneath the Parnaíba basin), while to the SW, the seismic activity follows an E-W and then N-S direction, not coincident with the TBL. On the other hand, the seismic zone coincides exactly with the trend of high isostatic gravity anomalies (above -20 mGal), which were interpreted as due to high-density mantle rocks beneath a belt of thin crust (roughly beneath the Goiás Magmatic Arc and the Central Massif). Upper crustal stresses due to flexural deformation were calculated with finite-element methods assuming a visco-elastic lithosphere overlying a very soft asthenosphere. The lithospheric load due to the shallow, high-density mantle rocks produces compressional stresses up to 100 MPa in the 200 km wide GTSZ. Regional compressive stresses from plate boundary forces combine with the local flexural stresses to reach seismogenic levels in the GTSZ. Away from the central zone of horizontal compression, extensional stresses (related to the peripheral bulge) balance the regional compression, which explains the aseismic areas. Three other seismic clusters (the N-S belt along the Eastern border of the Amazon craton near Carajás, the cluster of seismicity at the northern border of the Parecis Basin (Porto dos Gauchos Seismic Zone), and the active Pantanal Basin overlying the Paraguay foldbelt) are also located in areas of predominantly positive isostatic anomalies. For this reason we propose that similar compressional flexural stresses enhance the regional, plate-wide stresses up to seismogenic levels in other areas and are an important factor to explain the mid-plate seismicity in Brazil.

  14. Impacts of hydroelectric dams on alluvial riparian plant communities in Eastern Brazilian Amazonian.

    PubMed

    Ferreira, Leandro Valle; Cunha, Denise A; Chaves, Priscilla P; Matos, Darley C L; Parolin, Pia

    2013-09-01

    The major rivers of the Amazon River basin and their biota are threatened by the planned construction of large hydroelectric dams that are expected to have strong impacts on floodplain plant communities. The present study presents forest inventories from three floodplain sites colonized by alluvial riparian vegetation in the Tapajós, Xingu and Tocantins River basins in eastern Amazonian. Results indicate that tree species of the highly specialized alluvial riparian vegetation are clearly distinct among the three river basins, although they are not very distinct from each other and environmental constraints are very similar. With only 6 of 74 species occurring in all three inventories, most tree and shrub species are restricted to only one of the rivers, indicating a high degree of local distribution. Different species occupy similar environmental niches, making these fragile riparian formations highly valuable. Conservation plans must consider species complementarily when decisions are made on where to place floodplain forest conservation units to avoid the irreversible loss of unique alluvial riparian vegetation biodiversity. PMID:24068089

  15. Land-use in Amazonia and the Cerrado of Brazil: State of Knowledge and GIS Database

    NASA Technical Reports Server (NTRS)

    Nepstad, Daniel C.

    1997-01-01

    We have assembled datasets to strengthen the LargeScale Biosphere Atmosphere Experiment in Amazonia (LBA). These datasets can now be accessed through the Woods Hole Research Center homepage (www.whrc.org), and will soon be linked to the Pre-LBA homepages of the Brazilian Space Research Institute's Center for Weather and Climate Prediction (Instituto de Pesquisas Espaciais, Centro de Previsao de Tempo e Estudos Climaticos, INPE/CPTEC) and through the Oak Ridge National Laboratory, Distributed Active Archive Center (ORNL/DMC). Some of the datasets that we are making available involved new field research and/or the digitization of data available in Brazilian government agencies. For example, during the grant period we conducted interviews at 1,100 sawmills across Amazonia to determine their production of sawn timber, and their harvest intensities. These data provide the basis for the first quantitative assessment of the area of forest affected each year by selective logging (Nepstad et al, submitted to Nature). We digitized the locations of all of the rural households in the State of Para that have been mapped by the Brazilian malaria combat agency (SUCAM). We also mapped and digitized areas of deforestation in the state of Tocantins, which is comprised largely of savanna (cerrado), an ecosystem that has been routinely excluded from deforestation mapping exercises.

  16. Spectroscopic analysis and X-ray diffraction of trunk fossils from the Parnaíba Basin, Northeast Brazil.

    PubMed

    Alencar, Wemerson J; Santos, F Eroni P; Cisneros, Juan C; da Silva, João H; Freire, Paulo T C; Viana, Bartolomeu C

    2015-01-25

    The Parnaiba Sedimentary Basin is of the Paleozoic age and is located in Northeast Brazil, covering the states of Piauí, Maranhão and Tocantins and a small part of Ceará and Pará. In this work we applied several chemical analytical techniques to characterize trunk fossils found in the Parnaíba Sedimentary Basin, collected from four different sites, and discuss their fossilization process. We performed a study of the trunk fossils through X-ray diffraction, energy dispersive spectroscopy, infrared and Raman spectroscopy. The analysis allow us to identify the different compositions which are present in the trunk fossils: kaolinite (Al2Si2O5(OH)4), hematite (Fe2O3) and quartz (SiO2). Based in these results we were able to identify that the main fossilization mechanism of the trunk fossil was silicification. Furthermore, through Raman spectroscopy, we have observed the presence of carbonaceous materials in the Permian fossils, as evidenced by the D and G Raman bands. The relative intensities and bandwidths of the D and G bands indicated that the carbon has a low crystallinity. Thus, most of trunk fossils analyzed were permineralized and not petrified, because there is the presence of carbon that characterizes the partial decomposition of the organic matter in some trunks. PMID:25173521

  17. Spectroscopic analysis and X-ray diffraction of trunk fossils from the Parnaíba Basin, Northeast Brazil

    NASA Astrophysics Data System (ADS)

    Alencar, Wemerson J.; Santos, F. Eroni P.; Cisneros, Juan C.; da Silva, João H.; Freire, Paulo T. C.; Viana, Bartolomeu C.

    2015-01-01

    The Parnaiba Sedimentary Basin is of the Paleozoic age and is located in Northeast Brazil, covering the states of Piauí, Maranhão and Tocantins and a small part of Ceará and Pará. In this work we applied several chemical analytical techniques to characterize trunk fossils found in the Parnaíba Sedimentary Basin, collected from four different sites, and discuss their fossilization process. We performed a study of the trunk fossils through X-ray diffraction, energy dispersive spectroscopy, infrared and Raman spectroscopy. The analysis allow us to identify the different compositions which are present in the trunk fossils: kaolinite (Al2Si2O5(OH)4), hematite (Fe2O3) and quartz (SiO2). Based in these results we were able to identify that the main fossilization mechanism of the trunk fossil was silicification. Furthermore, through Raman spectroscopy, we have observed the presence of carbonaceous materials in the Permian fossils, as evidenced by the D and G Raman bands. The relative intensities and bandwidths of the D and G bands indicated that the carbon has a low crystallinity. Thus, most of trunk fossils analyzed were permineralized and not petrified, because there is the presence of carbon that characterizes the partial decomposition of the organic matter in some trunks.

  18. Purplish-red almandine garnets with alexandrite-like effect: causes of colors and color-enhancing treatments

    NASA Astrophysics Data System (ADS)

    Krambrock, K.; Guimarães, F. S.; Pinheiro, M. V. B.; Paniago, R.; Righi, A.; Persiano, A. I. C.; Karfunkel, J.; Hoover, D. B.

    2013-07-01

    Fine gem-quality, purplish-red garnets from the Tocantins State, Brazil, were investigated for their crystal chemistry and optical properties by several spectroscopic techniques, including electron microprobe analysis, Mössbauer, Raman spectroscopy and optical absorption. Although most garnets are purplish-red, some specimens show color zoning, with deep red color in the core and purple in the outer parts. Electron microprobe analysis showed that these garnets are principally almandine-pyrope solid solution at the rim. However, at the red core, they contain also up to 7 % of spessartine. Mössbauer spectroscopy reveals that the iron content is predominantly Fe2+ (>99 %) in the natural garnets. The optical absorption spectra are dominated by spin-allowed and unusual high-intense spin-forbidden transitions from eightfold coordinated Fe(II) in the near infrared and visible spectral region, respectively. For the red core, in addition, three sharp bands centered in the blue part of the visible spectral range and a broad charge transfer band in the near-UV region are observed. All garnets with purplish colors show also a remarkable color-changing effect from purple in daylight light to red in incandescent light called alexandrite-like effect. Heat treatments in the 700-900 °C temperature range in oxidizing and reducing atmospheres lead to reversible and irreversible color changes which are discussed based on the microscopic changes in the Fe ion coordination and valence states.

  19. First record of Procyon cancrivorus (G. Cuvier, 1798) (Carnivora, Procyonidae) in stratigraphic context in the Late Pleistocene of Brazil

    NASA Astrophysics Data System (ADS)

    Rodriguez, Sergio G.; Soibelzon, Leopoldo H.; Rodrigues, Shirlley; Morgan, Cecilia C.; Bernardes, Camila; Avilla, Leonardo; Lynch, Eric

    2013-08-01

    Although five genera of procyonids are currently present in South America, only two of the extant genera, Procyon and Nasua are represented in the South American fossil record. A recent discovery of a procyonid lower second molar in Late Pleistocene deposits of Aurora do Tocantins, northern Brazil, offers potential to further our understanding of the stratigraphic and temporal range of South American fossil procyonids. We use geometric morphometric analysis of two-dimensional landmarks and semilandmarks to explore morphological variation in the lower second molars of extant Procyon lotor and Procyon cancrivorus and multivariate methods to support the identification of the Pleistocene specimen as P. cancrivorus. This material represents the second fossil record of P. cancrivorus in South America Procyonids entered South America in two phases: the first comprising by Cyonasua and Chapadmalania during the Late Miocene, and the other recent genera, beginning in the Late Pleistocene. These Late Miocene procyonids were more carnivorous than Late Pleistocene-Recent omnivorous taxa and possible went extinct due to competition with other placental carnivorans that entered South America and diversified during the latest Pliocene-Early Pleistocene.

  20. Crustal structure beneath the Paleozoic Parnaíba Basin revealed by airborne gravity and magnetic data, Brazil

    USGS Publications Warehouse

    de Castroa, David L.; Fuck, Reinhardt A.; Phillips, Jeffrey D. Phillips; Vidotti, Roberta M.; Bezerra, Francisco H.R.; Dantas, Elton L.

    2014-01-01

    The Parnaíba Basin is a large Paleozoic syneclise in northeastern Brazil underlain by Precambrian crystalline basement, which comprises a complex lithostructural and tectonic framework formed during the Neoproterozoic–Eopaleozoic Brasiliano–Pan African orogenic collage. A sag basin up to 3.5 km thick and 1000 km long formed after the collage. The lithologic composition, structure, and role in the basin evolution of the underlying basement are the focus of this study. Airborne gravity and magnetic data were modeled to reveal the general crustal structure underneath the Parnaíba Basin. Results indicate that gravity and magnetic signatures delineate the main boundaries and structural trends of three cratonic areas and surrounding Neoproterozoic fold belts in the basement. Triangular-shaped basement inliers are geophysically defined in the central region of this continental-scale Neoproterozoic convergence zone. A 3-D gravity inversion constrained by seismological data reveals that basement inliers exhibit a 36–40.5 km deep crustal root, with borders defined by a high-density and thinner crust. Forward modeling of gravity and magnetic data indicates that lateral boundaries between crustal units are limited by Brasiliano shear zones, representing lithospheric sutures of the Amazonian and São Francisco Cratons, Tocantins Province and Parnaíba Block. In addition, coincident residual gravity, residual magnetic, and pseudo-gravity lows indicate two complex systems of Eopaleozoic rifts related to the initial phase of the sag deposition, which follow basement trends in several directions.

  1. Thin lithosphere between the Amazonian and São Francisco cratons, in central Brazil, revealed by seismic P-wave tomography

    NASA Astrophysics Data System (ADS)

    de Azevedo, Paulo Araújo; Rocha, Marcelo Peres; Soares, José Eduardo Pereira; Fuck, Reinhardt A.

    2015-04-01

    Results of P-wave traveltime seismic tomography in central Brazil unravel the upper-mantle velocity structure and its relationship with the tectonic framework. Data were recorded between 2008 and 2012 at 16 stations distributed over the study area, and were added to the database used by Rocha et al. to improve the resolution of anomalies, and to image the surrounding regions. The main objective was to observe the upper-mantle boundary zone between the Amazonian and São Francisco cratons, represented by mobile belts, inside the Tocantins Province, and to study the lithosphere related to the collision between these two cratons during the Neoproterozoic. A set of low-velocity anomalies was observed crossing the study area in the NE-SW direction, in agreement with the main trend of the Transbrasiliano lineament. The region where the anomalies are located was interpreted as the zone separating the Amazonian and São Franciscan palaeoplates. There is a good correlation between the low-velocity anomalies and the high seismicity of this region, suggesting that it is a region of weakness, probably related to lithospheric thinning. High velocities were observed under the Amazonian and São Francisco cratons. A model is proposed for the lithospheric subsurface in central Brazil, emphasizing the boundary zone between the main palaeoplates in the study area. After merging both databases, the low-velocity anomalies in the central part of the study area suggest tectonic partitioning of the lithosphere. Synthetic tests show that the tomography results are robust.

  2. Parasites of the fish Cichla piquiti (Cichlidae) in native and invaded Brazilian basins: release not from the enemy, but from its effects.

    PubMed

    Lacerda, Ana C F; Takemoto, Ricardo M; Poulin, Robert; Pavanelli, Gilberto C

    2013-01-01

    The enemy release hypothesis is frequently used to explain the success of invaders, postulating that introduced species have escaped from their native enemies, including parasites. Here, we tested this hypothesis for the tucunaré (Cichla piquiti), a predatory cichlid, and its endoparasites. First, the parasites and their influence on the condition of the hosts in the native environment, the Tocantins River (TO), were compared to an environment where the fish was introduced, the Paraná River (PR). Then, comparisons of the abundances of Diplostomidae eye flukes and Contracaecum sp. larval nematodes were made between the introduced tucunaré and two predators native to the PR, Hoplias malabaricus and Raphiodon vulpinus. Nine species of endoparasites were recorded in total, five of which occurring in both localities. Total species richness did not differ between localities, and fish condition was negatively affected by the cestodes Sciadocephalus megalodiscus only in the TO. In the PR, abundance of Contracaecum sp. did not differ between natives and invaders; however, eye flukes were more abundant in the native fish H. malabaricus, which may represent an advantage to the invader if they were competing for prey. These results did not support the idea that the escape from parasites favoured the establishment of C. piquiti in the PR. Instead, the escape from the parasites' effects seems a better explanation, and further studies examining effects on host physiology and/or fitness in the native and introduced ranges are needed. PMID:23052767

  3. Diet, reproduction and population structure of the introduced Amazonian fish Cichla piquiti (Perciformes: Cichlidae) in the Cachoeira Dourada reservoir (Paranaíba River, central Brazil).

    PubMed

    Luiz, Tatiane Ferraz; Velludo, Marcela Roquetti; Peret, Alberto Carvalho; Rodrigues Filho, Jorge Luiz; Peret, André Moldenhauer

    2011-06-01

    The Blue Peacock Bass (Cichla piquiti), native to the Tocantins-Araguaia river basin of the Amazon system, was introduced into the basin of the Paranaíba River, Paraná River system. Cachoeira Dourada reservoir is one of a series of dams on the Paranaíba River in central Brazil, where this fish has become established. A study of its feeding spectrum, combined with information about its reproductive characteristics and population structure, would enable the current state of this species in the reservoir to be assessed and might provide useful data for the management of other species native to this habitat. This study showed that the peacock bass has no predators or natural competitors in the reservoir and that reproduces continuously, with high reproductive rates, and has a smaller median length at first maturity (L50) than other species of Cichla. Its successful establishment in habitats strongly affected by human activity should cause changes in the whole structure of the local fish communities. Nonetheless, in this reservoir, there appears to be some sharing of the functions of this species with native carnivorous fish, a situation that may be sustained by the presence of a wide variety of foraging fish. PMID:21717855

  4. A New Species of River Dolphin from Brazil or: How Little Do We Know Our Biodiversity

    PubMed Central

    Hrbek, Tomas; da Silva, Vera Maria Ferreira; Dutra, Nicole; Gravena, Waleska; Martin, Anthony R.; Farias, Izeni Pires

    2014-01-01

    True river dolphins are some of the rarest and most endangered of all vertebrates. They comprise relict evolutionary lineages of high taxonomic distinctness and conservation value, but are afforded little protection. We report the discovery of a new species of a river dolphin from the Araguaia River basin of Brazil, the first such discovery in nearly 100 years. The species is diagnosable by a series of molecular and morphological characters and diverged from its Amazonian sister taxon 2.08 million years ago. The estimated time of divergence corresponds to the separation of the Araguaia-Tocantins basin from the Amazon basin. This discovery highlights the immensity of the deficit in our knowledge of Neotropical biodiversity, as well as vulnerability of biodiversity to anthropogenic actions in an increasingly threatened landscape. We anticipate that this study will provide an impetus for the taxonomic and conservation reanalysis of other taxa shared between the Araguaia and Amazon aquatic ecosystems, as well as stimulate historical biogeographical analyses of the two basins. PMID:24465386

  5. Dangerous waters: outbreak of eye lesions caused by fresh water sponge spicules

    PubMed Central

    Cruz, A A V; Alencar, V M; Medina, N H; Volkmer-Ribeiro, C; Gattás, V L; Luna, E

    2013-01-01

    Purpose To describe an extremely uncommon outbreak of eye lesions in a specific area of the Brazilian Amazonia. Methods Prospective noncomparative case series. Fifty-nine patients who developed eye lesions after swimming in the Araguaia river of Tocantins state in Brazil were examined. A team of ophthalmologists equipped with a slit-lamp, gonioscopic lenses, and indirect ophthalmoscopy performed full eye examination. Analysis of the flora and fauna of the river water was undertaken by a group of experts. Results and Conclusions Eighty-three eyes were affected. The most common lesions were corneal opacities seen in 34 eyes and conjunctival nodules diagnosed in 12 eyes. Severe visual acuity loss was detected in seven children with unilateral anterior chamber lesions. Spicules of the sponge species Drulia uruguayensis and Drulia ctenosclera were found inside three blind eyes that have been enucleated for diagnostic purposes. All eye lesions could be attributed to an outbreak of foreign bodies from fresh water sponges. Organic enrichment of the water resulting from the absence of sanitation probably was the key factor, which initiated a cycle of ecological imbalance that provoked human disease. PMID:23306731

  6. Three new species of Proceratophrys Miranda-Ribeiro 1920 from Brazilian Cerrado (Anura, Odontophrynidae).

    PubMed

    Brandão, Reuber Albuquerque; Caramaschi, Ulisses; Vaz-Silva, Wilian; Campos, Leandro Ambrósio

    2013-01-01

    Based on the analyses of specimens collected at several areas in the Cerrado domain from Central Brazil and others housed in scientific collections and on specimens collected at the type-locality, herein we describe three new species belonging to the P. cristiceps group: Proceratophrys bagnoi sp. nov., from UHE Serra da Mesa power plant (13°49'47.5"S, 48°19'17"W; 570 m a.s.l.; WGS84 datum), Municipality of Minaçu, State of Goiás; Proceratophrys branti sp. nov., from Jalapão, Municipality of Mateiros (05o15'25"S, 48o12'00"W; 109 m a.s.l.; WGS84 datum), State of Tocantins; and Proceratophrys dibernardoi sp. nov., Municipality of Mineiros (17o33'52"S, 52o33'20"W; 803 m a.s.l.; WGS84 datum), State of Goiás. The diversity of Proceratophrys in Brazilian Cerrado is still underscored and several species will be described in the following years. PMID:25113702

  7. Behavior patterns of southern bearded sakis (Chiropotes satanas) in the fragmented landscape of eastern Brazilian Amazonia.

    PubMed

    Silva, Suleima S B; Ferrari, Stephen F

    2009-01-01

    The endangered but poorly studied southern bearded saki, Chiropotes satanas, faces extremes of habitat fragmentation throughout its geographic range in eastern Amazonia. This article focuses on the behavior of the members of two groups--a large one (30-34 members) in continuous forest (home range=69 ha) and a much smaller one (7 members) on a 17-ha man-made island--at the Tucuruí Reservoir on the Tocantins River. Quantitative behavioral data were collected through scan and all-events sampling. Both groups were characterized by the fission-fusion pattern of social organization typical of the genus and relatively high rates of traveling and feeding, also characteristic of the genus. However, the island group spent significantly more time resting and significantly less traveling than the mainland group, presumably as a function of its much smaller home range. Despite resting more, island group members engaged in significantly less social interaction, possibly because of the much smaller size of this group (which also affected visibility), or other factors, such as nutritional stress. Affiliative associations of males were a mainstay of social behavior in both groups and interspecific associations with capuchins (Cebus apella) and squirrel monkeys (Saimiri sciureus) were relatively common, especially in the mainland group. Overall, the island group presented a relatively reduced behavioral repertoire, apparently reflecting factors such as group size and the size and quality of its home range. PMID:18850586

  8. Modeling the hydrological effects of secondary forest growth in abandoned deforested areas in Amazonia

    NASA Astrophysics Data System (ADS)

    Von Randow, R. C.; De Siqueira, J. L., Jr.; Rodriguez, D. A.; Tomasella, J.

    2012-12-01

    The replacement of tropical forest by pasture or agriculture affects the hydrological cycle decreasing the evapotranspiration and increasing the runoff. However, in situ measurements have shown evidences of an increase of the evaporative fraction and of the radiation efficiency, and a decrease of the albedo as function of years after abandonment of deforested areas, what indicates that the effects of deforestation on hydrological cycle may be minimized by the secondary forest growth process. The objective of this work is to evaluate the possible effects of secondary growth in deforested areas of two large sub basins of the Amazon river: Madeira and Tocantins; two basins that are under constant anthropic changes and governmental policies plans of hydropower and navigation. The Hydrological Model for Large Basins developed at the Brazilian National Institute for Space Research (MGB-INPE), calibrated through observed discharges for 1970-1990 using actual land use conditions, will be driven by dynamics downscaling from the regional atmospheric model Eta-CPTEC and land use scenarios, both from 2000 to 2050 (or 2100). The original land cover maps will be modified by a statistical model to take into account the growth of secondary forest in abandoned areas, to analyze the large scale integration of the impact of the secondary growth observed at small scales and its effects on water production in the basin.

  9. Analysis of water level variations in Brazilian basins using GRACE

    NASA Astrophysics Data System (ADS)

    Matos, A.; Blitzkow, D.; Almeida, F.; Costa, S.; Campos, I.; Barbosa, A.

    2012-01-01

    A comparison between daily in-situ water level time series measured at ground-based hydrometric stations (HS - 1,899 stations located in twelve Brazilian basins) of the Agência Nacional de Águas (ANA) with vertically-integrated water height anomaly deduced from the Gravity Recovery and Climate Experiment (GRACE) geoid is carried out in Brazil. The equivalent water height (EWH) of 10-day intervals of GRACE models were computed by GRGS/CNES. It is a 6-year analysis (July-2002 to May-2008). The coefficient of determination is computed between the ANA water level and GRACE EWH. Values higher than 0.6 were detected in the following basins: Amazon, north of Paraguay, Tocantins-Araguaia, Western North-East Atlantic and north of the Parnaíba. In the Uruguay (Pampas region) and the west of São Francisco basins, the coefficient of determination is around 0.5 and 0.6. These results were adjusted with a linear transfer function and two second degree polynomials (flood and ebb period) between GRACE EWH and ANA water level. The behavior of these two polynomials is related to the phase difference of the two time series and yielded four different types of responses. This paper shows seven ANA stations that represent these responses and relates them with their hydro-geological domain.

  10. Genetic and morphological diversity of Moenkhausia oligolepis (Characiformes: Characidae) populations in the tributaries of the Araguaia River, Brazil: implications for taxonomy and conservation.

    PubMed

    Domingos, T J; Moraes, L N; Moresco, R M; Margarido, V P; Venere, P C

    2014-01-01

    Molecular genetic assessments that consider ecological information, in addition to endogamy levels, genetic diversity, and the genetic differentiation among species and populations, are particularly important for the conservation of biological diversity. Prime candidates for conservation genetic review are those subject to human use, including harvests for the ornamental fish trade. Colorful South American tetra, such as Moenkhausia oligolepis and M. forestii, are good examples of fish species that are widely collected and exported worldwide. This study aimed to evaluate the population-specific characteristics of M. oligolepis and M. forestii by comparing morphometric and molecular analyses based on ISSR markers, to provide information that would facilitate the sustainable management of these 2 species. Seventy-two specimens were collected from the Araguaia-Tocantins and Paraguay River Basins in Brazil. All specimens were measured and analyzed using ISSR markers. Population-exclusive bands were found among the 86 detected bands, while morphometric clusters reflected the geographical distribution of individuals. Correlated genetic and morphological variation supported the presence of 3 distinct groups from tributaries of the Araguaia and Mortes Rivers. Using the same techniques, all M. oligolepis populations were isolated from M. forestii. This study on Moenkhausia presents an interesting example that could be used to construct a framework of South American ichthyodiversity, and reinforces the necessity of habitat conservation to prevent the loss of biological diversity. PMID:25299113

  11. A new species of river dolphin from Brazil or: how little do we know our biodiversity.

    PubMed

    Hrbek, Tomas; da Silva, Vera Maria Ferreira; Dutra, Nicole; Gravena, Waleska; Martin, Anthony R; Farias, Izeni Pires

    2014-01-01

    True river dolphins are some of the rarest and most endangered of all vertebrates. They comprise relict evolutionary lineages of high taxonomic distinctness and conservation value, but are afforded little protection. We report the discovery of a new species of a river dolphin from the Araguaia River basin of Brazil, the first such discovery in nearly 100 years. The species is diagnosable by a series of molecular and morphological characters and diverged from its Amazonian sister taxon 2.08 million years ago. The estimated time of divergence corresponds to the separation of the Araguaia-Tocantins basin from the Amazon basin. This discovery highlights the immensity of the deficit in our knowledge of Neotropical biodiversity, as well as vulnerability of biodiversity to anthropogenic actions in an increasingly threatened landscape. We anticipate that this study will provide an impetus for the taxonomic and conservation reanalysis of other taxa shared between the Araguaia and Amazon aquatic ecosystems, as well as stimulate historical biogeographical analyses of the two basins. PMID:24465386

  12. Two new species of Leporinus (Characiformes: Anostomidae) from the Brazilian Amazon, and redescription of Leporinus striatus Kner 1858.

    PubMed

    Birindelli, J L O; Britski, H A

    2013-11-01

    Two new species of Leporinus are described from tributaries of the Rio Amazonas in Brazil. One species is known from the Jari and Tapajós River basins, and is identified on the basis of a gas bladder reduced in size, a dark midlateral stripe on the body, dark transverse bars on the dorsum, a subinferior mouth, three teeth on the premaxilla, four teeth on the dentary and 16 scale rows around the caudal peduncle. The second new species is known from the Tocantins, Xingu and Tapajós River basins, and is identified on the basis of three dark longitudinal stripes on the body, a subinferior mouth, three teeth on the premaxilla, four teeth on the dentary and 12 scale rows around the caudal peduncle. In addition, Leporinus striatus is redescribed based on type and additional specimens from the Río de La Plata, Amazonas, Orinoco, Atrato, Magdalena and Sinu River basins. Leporinus striatus is identified on the basis of four dark longitudinal stripes on the body, a subterminal mouth, three teeth on the premaxilla, four teeth on the dentary and 16 scale rows around the caudal peduncle. PMID:24580659

  13. NewDevelopment? provincializing

    E-print Network

    Silver, Whendee

    of Campinas - UNICAMP, Brazil O Brasil Gigante: Reproducing the Brazilian Miracle in Sub Saharan Africa. Ryan Arabia. Timm Lau, Professor, King Fahd University of Petroleum and Minerals Applying STS in Industrial - UFMG, Brazil Developing Economic eory:

  14. The First Pan American Geosynthetics Conference & Exhibition 2-5 March 2008, Cancun, Mexico

    E-print Network

    Zornberg, Jorge G.

    Federal de Ouro Preto, Ouro Preto, Brasil J.G. Zornberg, University of Texas at Austin, Texas USA ABSTRACT, USA J.S. McCartney, University of Arkansas at Fayetteville, Arkansas, USA C.L. Nogueira, Universidade

  15. BRAZILIAN'S BIOENERGY SUCCESS POWERED BY THE SUN

    E-print Network

    Canet, Léonie

    000 30 000 Brazilian ethanol production (Mil m3) Brasil Source : UNICA ­ Sugarcane Industry;PROJECTIONSAND EXPECTATIONS - 2021: Investments : 31,7 billions euros Ethanol production : 68,2 billions liters

  16. vibrant v.9 n.1 julie a. cavignac Propomos avaliar a importncia dos estudos americanistas e o papel dos pes-

    E-print Network

    Paris-Sud XI, Université de

    trabalhos ame- ricanistas no Brasil e na França. É ainda possível definir os limites de uma antropologia que índios. Palavras-chave: Americanismo; Antropologia francesa; Museologia Resumé Il s'agit évaluer l

  17. 19 CFR 134.45 - Approved markings of country name.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...clearly indicate the English name of the country of origin, such as “Brasil” for “Brazil” and “Italie” for “Italy,” are acceptable. (c) Adjectival form. The adjectival form of the name of a country shall be accepted as a...

  18. 19 CFR 134.45 - Approved markings of country name.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...clearly indicate the English name of the country of origin, such as “Brasil” for “Brazil” and “Italie” for “Italy,” are acceptable. (c) Adjectival form. The adjectival form of the name of a country shall be accepted as a...

  19. 19 CFR 134.45 - Approved markings of country name.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...clearly indicate the English name of the country of origin, such as “Brasil” for “Brazil” and “Italie” for “Italy,” are acceptable. (c) Adjectival form. The adjectival form of the name of a country shall be accepted as a...

  20. 19 CFR 134.45 - Approved markings of country name.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...clearly indicate the English name of the country of origin, such as “Brasil” for “Brazil” and “Italie” for “Italy,” are acceptable. (c) Adjectival form. The adjectival form of the name of a country shall be accepted as a...

  1. Conselho Nacional de Desenvolvimento Cientfico e Tecnolgico

    E-print Network

    ampliado [Barcellos e Sabroza, 2001]. As complexidades das novas realidades do Brasil urbano, sugerem novas efeitos do combate a cada uma sobre as demais. A este quadro acrescenta-se a mais nova epidemia da

  2. Volume 11(2) Malacofauna fssil

    E-print Network

    Morandini, Andre C.

    as cepas de Yersinia pestis isoladas durante epizootia no foco da chapada do Araripe, Pernambuco, Brasil, por MLVA 7 Relationship analysis of Yersinia pestis strains isolated during the epidemic focus

  3. O Prof. Paulo Helene Professor Titular da Universidade de So Paulo, Educador, Pesquisador renomado e respeitado Consultor. Engenheiro Civil, EPUSP. Especialista em "Patologa de las Construcciones", Instituto

    E-print Network

    Paraná, Universidade Federal do

    congressos, eventos nacionais e internacionais e em 25 revistas especializadas. Autor de 9 livros publicados no exterior, 3 livros publicados no Brasil e tradutor de outros 3 livros. Orgulha-se de ter formado 43 mestres

  4. Rubber tappers of the Upper Juruá River, Brazil: the making of a forest peasant economy

    E-print Network

    Barbosa de Almeida, Mauro William

    1993-03-16

    throughout the Amazon, where social relations and technical patterns could vary tremendously (Novo Aripuaml on the Madeira River, Amazonas; Xapuri, Brasi]eia and Assis Brasil on the Purus Valley, eastern Acre; Rondonia State). I am thus aware...

  5. An Algorithmic Approach to Topological Design of Service Overlay Networks

    E-print Network

    Liebeherr, Jörg

    Department of Computer Science, Catholic University of Goi´as, Goi^ania, Brasil, 74605-010 J¨org Liebeherr) requires a level of cooperation between ASs that is difficult to achieve in the current architecture

  6. 1360 -XIV Encuentro de Latinoamericanistas Espaoles LA HISTORIA MUNDIAL Y SUS

    E-print Network

    Paris-Sud XI, Université de

    del comercio mundial, las transnacionales, la circulación de información, el movimiento de personas Colima. Cultiva la línea de investigación Sociedad y Organización Internacional. Entre sus publicaciones (coord.) A política mundial contemporánea, EDUFBA Salvador, 2010, Brasil. #12;Congreso Internacional 1810

  7. Patterns and influencing factors of white-winged dove feeding activity in the lower Rio Grande Valley of Texas and Mexico

    E-print Network

    Dolton, David Delmer

    1975-01-01

    name Alamo vine Anacua Brasil Browntop panic grass Canarygrass Cantaloupe Catclaw Cedar elm Chili piguin Citrus Colima Coma Common sunflower Corn Crabgrass Croton Desert olive Dogweed Granjeno Groundsel-tree Guayacan Honey mesquite...

  8. n Paese COGNOME NOME DIPARTIMENTO Istituzione Partner 1 Argentina GAZZOLI Delia CHIMICA Universidad Nacional de la Plata

    E-print Network

    Di Pillo, Gianni

    ISALUD 5 Argentina RICCI Laura PIANIFICAZIONE, DESIGN, TECNOLOGIA DELL'ARCHITETTURA Universidad Nacional Universidade Estadual de Campinas (UNICAMP) 13 Brasile TRUSIANI Elio PIANIFICAZIONE, DESIGN, TECNOLOGIA DELL E PROGETTO Tsinghua University 29 Cina PAPARO Barbaro Samuele MEDICINA CLINICA E MOLECOLARE Zhejiang

  9. Sociedade & Natureza, Uberlndia, 21 (1): 39-49, ABR. 2009 Making species distribution models available on the web for reuse in biodiversity experiments: euterpe edulis species case study

    E-print Network

    Camara, Gilberto

    experimentos de biodiversidade: Estudo de caso com a espécie Euterpe edulis Karla Donato Fook Instituto Instituto Nacional de Pesquisas Espaciais ­ INPE São José dos Campos/SP ­ Brasil silvana@dpi.inpe.br Antônio Miguel Vieira Monteiro Instituto Nacional de Pesquisas Espaciais ­ INPE São José dos Campos/SP ­ Brasil

  10. Anais do XII Congresso Brasileiro de Informtica em Sade, Porto de Galinhas, PE, 18-22 de outubro de

    E-print Network

    Baranauskas, José Augusto

    Ribeirão Preto Luciana Domene Furlan Sales 1 , Patrícia Miranda Fugimoto 2 , Afonso Dinis Costa Passos 3 São Paulo (USP), Brasil 1,2,6 Departamento de Física e Matemática (DFM), Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), Brasil 3,5 Departamento de

  11. Exito para el XVI Festival Internacional de Teatro Hispano del Teatro Avante

    E-print Network

    Marrero, Marí a Teresa

    2002-04-01

    Nueva York del 20 al 30 de junio 2001 en el New 42nd Street Studios logró traer maravillosos representantes del teatro latinoamericano y español contemporáneo. En Miami el programa incluyó: Cenizas sobre el mar (Colombia/Miami), La ciudad sitiada...) y Melodrama (Brasil). Y hubo tres obras de teatrodanza: Jacinta-todas las plegarias (Ecuador/EEUU), Seque volverás (Colombia) y Materia (Brasil). Por último el Teatro Taller de Colombia presentó Los cíngaros, obra para espacios abiertos públicos...

  12. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO - BRASIL Fernando G. Soares. Laboratório TeleMídia DI ­ PUC-Rio Rua Marquês de São Vicente, 225, Rio de Janeiro, RJ-900 Rio de Janeiro RJ Brasil Tel. +55 21 3527-1516 Fax: +55 21 3527-1530 E-mail: bib-di@inf.puc-rio.br #12

  13. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL #12 Rio de Janeiro (UERJ) #12;ii Responsável por publicações Rosane Teles Lins Castilho Assessoria de - Gávea 22453-900 Rio de Janeiro RJ Brasil Tel. +55 21 3114-1516 Fax: +55 21 3114-1530 E-mail: bib-di@inf.puc-rio

  14. PONTIFCIA UNIVERSIDADE CATLICA DO RIO DE JANEIRO RUA MARQUS DE SO VICENTE, 225 -CEP 22453-900

    E-print Network

    Endler, Markus

    PUC PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL ISSN 0103-9741 Monografias em Ciência da Computação n° 13/03 Acompanhamento de - Gávea 22453-900 Rio de Janeiro RJ Brasil Tel. +55 21 3114-1516 Fax: +55 21 3114-1530 E-mail: bib-di@inf.puc-rio

  15. Hugh Rudnick*, Rodrigo Moreno#, Luiz Barroso& * Pontificia Universidad Catlica de Chile, # Systep Ingeniera y Diseos, & PSR Inc.

    E-print Network

    Catholic University of Chile (Universidad Católica de Chile)

    1 Hugh Rudnick*, Rodrigo Moreno#, Luiz Barroso& * Pontificia Universidad Católica de Chile: procesos de Chile y Brasil · Críticas y ámbitos de acción 4 · Revisión histórica · Esquemas de Subastas · Ejemplos: procesos de Chile y Brasil · Críticas y ámbitos de acción #12;5 · Electricidad definida como

  16. HoMoGENEIDAD Y HETERoGENEIDAD: uN ESTuDIo CoMPARATIVo SoBRE LA REFoRMA EDuCATIVA DE LA DÉCADA DEL 90 EN ARGENTINA, BRASIL, CHILE Y MÉXICo* Homogeneity and Heterogeneity: A comparative study of educational reform in the decade of the 1990s in Argentina, Brazil, Chile and Mexico

    Microsoft Academic Search

    Nora Rut Krawczyk; Vera Lúcia Vieira

    A compartive study of the impacts of edu- cational reforms in the decade of the 1990s, in Argentina, Brazil, Chile and Mexico, base on the análisis od academic production. One hundred and eighty-six (186) publications were analyzed distributed in the following manner: Argentina 45, Brazil 62, Chile 36, and Mexico 43. The study focused the reconfiguration of the administration of

  17. The Bambuí health and ageing study (BHAS): methodological approach and preliminary results of a population-based cohort study of the elderly in Brazil* Estudo de Bambuí sobre saúde e envelhecimento: metodologia e resultados preli- minares de coorte de estudo de idosos no Brasil

    Microsoft Academic Search

    Maria Fernanda F Lima; Elizabeth Uchoa; Henrique L Guerra; Pedro G Vidigal; Sandhi M Barreto

    Objective A cohort study has been designed to identify predictors of adverse health events in the elderly. The methodology of the study and preliminary descriptive results are presented. Methods The study population comprises all residents of Bambuí (Minas Gerais, Brazil), aged 60 or more years (n=1.742). From these, 92.2% were interviewed and 85.9% underwent clinical examination, consisting of haematological and

  18. Prevalência de tripanossomíase americana, sífilis, toxoplasmose, rubéola, hepatite B, hepatite C e da infecção pelo vírus da imunodeficiência humana, avaliada por intermédio de testes sorológicos, em gestantes atendidas no período de 1996 a 1998 no Hospital Universitário Regional Norte do Paraná (Universidade Estadual de Londrina, Paraná, Brasil)

    Microsoft Academic Search

    Edna Maria Vissoci Reiche; Helena Kaminami Morimoto; Grazieli Nogueira Farias; Kátia Regina Hisatsugu; Lilian Geller; Ana Carolina Lima Frade Gomes; Helena Yurika Inoue; Gisele Rodrigues; Tiemi Matsuo

    2000-01-01

    In order to evaluate the seroprevalence of the american trypanosomiasis, syphilis, toxoplasmosis, rubella, hepatitis B infection, hepatitis C infection and human immunodeficiency virus infection among pregnant women attended at the Hospital Universitário Regional Norte do Paraná, Londrina State University, Paraná, a retrospective study of the serologic results performed in the prenatal routine during the period of June 1996 to June

  19. Therapeutic use of levonorgestrel-releasing intrauterine system in women with menorrhagia: a pilot study 1 1 The devices used in this study were supplied without cost by Schering of Brasil, São Paulo, Brazil. Mirena is a registered trademark of Leiras Oy, Turku, Finland

    Microsoft Academic Search

    Ilza Monteiro; Luis Bahamondes; Juan Diaz; Marcos Perrotti; Carlos Petta

    2002-01-01

    The objective of this study was to evaluate the efficacy and performance, for up to 1 year, of an intrauterine system releasing 20 ?g\\/day of levonorgestrel (LNG-IUS, Mirena) in the treatment of women with menorrhagia. It was a descriptive, prospective, non-comparative study. A 20 ?g\\/day LNG-releasing-IUS was inserted on any day during bleeding to 44 women (between 24 and 49

  20. Prevalence of hereditary factors predisposing to thrombosis in 260 patients diagnosed as thrombosis and investigated at Hospital Israelita Albert Einstein, São Paulo, Brazil Prevalência de fatores hereditários que predispõem à trombose em 260 pacientes com diagnóstico de trombose e investigados no Hospital Israelita Albert Einstein, São Paulo, Brasil

    Microsoft Academic Search

    Campos Guerra; Marden Rene Ferreira; Claudio Albers Mendes; Valdir Aranda

    Objective: To evaluate the prevalence of genetic polymorphism in coagulation factors in thromboembolic disease in patients with clinical suspicion of thrombosis. Methods: A retrospective case collection was performed searching all patients with clinical suspicion of thrombosis who were submitted to coagulation factor analysis at the Hospital Israelita Albert Einstein from November 2003 to April 2004. We included 260 patients, 118

  1. Detecção de áreas passíveis de recuperação do potencial da capacidade de infiltração, tendo como suporte a integração de mapas de áreas homogêneas à disponibilidade de recursos hídricos e o mapa de uso e ocupação das terras do médio Vale do Rio Paraíba do Sul - SP - Brasil

    Microsoft Academic Search

    Marcello Alves

    In Brazil in the last 30 years, the relative shortage of water resources has brought up conflicts regarded to its use. There are many causes to this shortage, and they are usually related to a historical lack of planning policies, territorial and environmental organization. In the hydrographic basin of Paraiba do Sul River, located in Vale do Paraíba - SP,

  2. Spatial distribution and shell utilization in three sympatric hermit crabs at non-consolidated sublittoral of estuarine-bay complex in São Vicente, São Paulo, Brazil Distribución del espacio y del uso de conchas por tres especies de cangrejo ermitaño en el sublitoral no consolidado del complejo bahía-estuario de São Vicente, São Paulo, Brasil

    Microsoft Academic Search

    Bruno S. Sant; Cilene M. Zangrande; Álvaro L. D. Reigada; Evandro Severino-Rodrigues; São Vicente; Pescado Marinho

    2006-01-01

    The objective of the present study was to characterize the spatial distribution and shell utilization of three hermit crab species in the estuarine-bay complex of São Vicente, São Paulo State, Brazil. Monthly samples were done throughout two years, in the non-consolidated sub-littoral at the estuarine-bay complex. The environmental factors, such as temperature, salinity and depth, were measured every month. The

  3. POTENCIAL PARA A UTILIZAÇÃO DE SITEMAS DE WETLANDS NO TRATAMENTO DE ÁGUAS RESIDUÁRIAS: UMA CONTRIBUÍÇÃO A SUSTENTABILIDADE DOS RECURSOS HÍDRICOS NO BRASIL1 Potential for the Use of Wetland Systems in Wastewater Treatment: A Contribution to Sustainability of Water Resources in Brazil

    Microsoft Academic Search

    Aníbal da Fonseca Santiago; Maria Lúcia Calijuri

    4 D.S. - DEC\\/UFV, . Resumo: Há uma estreita relação entre qualidade de vida, sustentabilidade dos recursos hídricos e controle de cargas poluidoras. Uma gama de doenças está relacionada à qualidade da água utilizada; estima-se que até 10% do tempo útil de trabalho no mundo seja desperdiçado devido às condições da água utilizada. O grande déficit nos serviços de saneamento

  4. Precambrian Cratons and Fold-Belts in Brazil: Overview

    NASA Astrophysics Data System (ADS)

    Fuck, R.

    2008-05-01

    The main Precambrian terrains recognized in Brazil comprise the Amazonian, São Francisco and Rio de la Plata cratons, surrounded by Neoproterozoic Brasiliano fold belts, making up the Borborema, Mantiqueira and Tocantins provinces. The Amazonian craton comprises an Archean core, surrounded by Paleoproterozoic terrains (Maroni-Itacaiunas, Ventuari-Tapajós, Rio Negro-Juruena), which southwestwards give way to the Mesoproterozoic Rondoniano-San Ignacio and Sunsas belts, the latter thought to be related to the Grenville belt of North America. The São Francisco craton comprises several Archean blocks (Gavião, Serrinha, Jequié) amalgamated by the Paleoproterozoic high-grade Itabuna-Salvador-Curaçá orogen. The Rio de la Plata craton, largely covered by Phanerozoic strata, is made of Paleoproterozoic basement gneiss and several Paleoproterozoic greenstone belts. Other cratonic blocks are hidden below large Phanerozoic basins, like the Paranapanema and Parnaíba blocks below the Paraná and Parnaíba basins, respectively. Several smaller Archean/Paleoproterozoic blocks appear within the Brasiliano provinces: some were strongly reworked during the Neoproterozoic orogenic events (São José do Campestre, Pernambuco-Alagoas, Goiás, Guanhães, Juiz de Fora, Curitiba), others were only marginally affected (São Luiz, Rio Apa, Luís Alves). The Brasiliano provinces are the result of Neoproterozoic to early Paleozoic orogenic events within the framework of West Gondwana amalgamation. The Mantiqueira Province extends from eastern Brazil to southern Uruguay and includes the Araçuaí, Ribeira and Dom Feliciano fold belts, bordering the São Francisco, Paranapanema and Rio de la Plata cratons and surrounding the Luís Alves craton. The Tocantins province in central Brazil includes the Araguaia, Paraguay and Brasília fold belts, the former bordering the Amazonian craton, the second bordering both the southern Amazonian craton and the Rio Apa block, and the last established on the western border of the São Francisco craton and on the northeastern margin of the Paranapanema block. Deep seismic refraction and other geophysical and geological studies were able to discriminate several crust compartments within the Brasília belt, like the juvenile Goiás magmatic arc, the Archean/Paleoproterozoic Goiás massif, and the external belt zone, as distinguished from the São Francisco craton. The Borborema Province in northeast Brazil is a complex array of Neoproterozoic fold belts (Médio Coreaú, Seridó, Sergipana, Riacho do Pontal, Rio Preto) between the São Luiz and São Francisco cratons, partially covering different crustal blocks (NW Ceará, Ceará Central, Rio Grande do Norte, Pernambuco-Alagoas) separated by large crustal-scale, strike-slip lineaments (Transbrasiliano, Senador Pompeu, Orós, Porta Alegre, Patos, Pernambuco, etc.). Basement of the crustal blocks is mainly Paleoproterozoic in age, but may include Archean cores (São José do Campestre, Grangeiro, Troia). South of the Patos lineament, Mesoproterozoic gneiss, granite and supracrustal belts are recorded in the Transversal domain, in the Pernambuco-Alagoas massif and in the Sergipano and Riacho do Pontal fold belts. Geophysical studies (MT sounding, gravity, seismology, deep seismic refraction, etc.) are underway in order to understand crustal structure and evolution of the province.

  5. Fishers' knowledge identifies environmental changes and fish abundance trends in impounded tropical rivers.

    PubMed

    Hallwass, Gustavo; Lopes, Priscila F; Juras, Anastácio A; Silvano, Renato A M

    2013-03-01

    The long-term impacts of large hydroelectric dams on small-scale fisheries in tropical rivers are poorly known. A promising way to investigate such impacts is to compare and integrate the local ecological knowledge (LEK) of resource users with biological data for the same region. We analyzed the accuracy of fishers' LEK to investigate fisheries dynamics and environmental changes in the Lower Tocantins River (Brazilian Amazon) downstream from a large dam. We estimated fishers' LEK through interviews with 300 fishers in nine villages and collected data on 601 fish landings in five of these villages, 22 years after the dam's establishment (2006-2008). We compared these two databases with each other and with data on fish landings from before the dam's establishment (1981) gathered from the literature. The data obtained based on the fishers' LEK (interviews) and from fisheries agreed regarding the primary fish species caught, the most commonly used type of fishing gear (gill nets) and even the most often used gill net mesh sizes but disagreed regarding seasonal fish abundance. According to the interviewed fishers, the primary environmental changes that occurred after the impoundment were an overall decrease in fish abundance, an increase in the abundance of some fish species and, possibly, the local extinction of a commercial fish species (Semaprochilodus brama). These changes were corroborated by comparing fish landings sampled before and 22 years after the impoundment, which indicated changes in the composition of fish landings and a decrease in the total annual fish production. Our results reinforce the hypothesis that large dams may adversely affect small-scale fisheries downstream and establish a feasible approach for applying fishers' LEK to fisheries management, especially in regions with a low research capacity. PMID:23634590

  6. Influence of environmental variables on diffusive greenhouse gas fluxes at hydroelectric reservoirs in Brazil.

    PubMed

    Rogério, J P; Santos, M A; Santos, E O

    2013-11-01

    For almost two decades, studies have been under way in Brazil, showing how hydroelectric reservoirs produce biogenic gases, mainly methane (CH4) and carbon dioxide (CO2), through the organic decomposition of flooded biomass. This somewhat complex phenomenon is due to a set of variables with differing levels of interdependence that directly or indirectly affect greenhouse gas (GHG) emissions. The purpose of this paper is to determine, through a statistical data analysis, the relation between CO2, CH4 diffusive fluxes and environmental variables at the Furnas, Itumbiara and Serra da Mesa hydroelectric reservoirs, located in the Cerrado biome on Brazil's high central plateau. The choice of this region was prompted by its importance in the national context, covering an area of some two million square kilometers, encompassing two major river basins (Paraná and Tocantins-Araguaia), with the largest installed power generation capacity in Brazil, together accounting for around 23% of Brazilian territory. This study shows that CH4 presented a moderate negative correlation between CO2 and depth. Additionally, a moderate positive correlation was noted for pH, water temperature and wind. The CO2 presented a moderate negative correlation for pH, wind speed, water temperature and air temperature. Additionally, a moderate positive correlation was noted for CO2 and water temperature. The complexity of the emission phenomenon is unlikely to occur through a simultaneous understanding of all the factors, due to difficulties in accessing and analyzing all the variables that have real, direct effects on GHG production and emission. PMID:24789391

  7. Evapotranspiration

    NASA Astrophysics Data System (ADS)

    da Rocha, Humberto R.; Manzi, Antonio O.; Shuttleworth, Jim

    We review the measurements of latent and sensible heat flux made at seven flux tower sites during the Large-Scale Biosphere-Atmosphere Experiment for tropical humid, transitional and semideciduous forests, floodplain (with cerrado), and cerrado ecosystems. Measurements over farmlands in Amazonia vary from 1.2 (for bare soil) to 3 mm d-1, with a reduction in the dry season. Estimates of evapotranspiration for Amazonia based on atmospheric reanalysis are generally higher than the measurements. Remarkably, for all the seven sites, the mean annual sensible heat flux ranged from 20 to 38 W m-2, lower during the wet season and higher in the late dry season, consistent with the variation of net radiation and soil moisture. Based on the seasonal evapotranspiration, the sites are divided into two functional groups: tropical forest and savanna. At the northern sites (Manaus, Santarém), precipitation is above 1900 mm a-1, monthly evapotranspiration is fairly constant during the wet season, ranges from 2.8 to 3.6 mm d-1, progressively increases along the dry season up to 4 mm d-1, and is dominated by net radiation and vapor density deficit. The western semideciduous forest in Rondônia presents similarities with the forest group, with monthly evapotranspiration that varies little but concurrent with net radiation year round, and peaks more exactly in the dry-to-wet season transition. At the southern and eastern sites, precipitation is below 1700 mm a-1, seasonal evapotranspiration is limited by soil moisture, ranges from 3 to 4 mm d-1 in the wet season, and decreases in the dry season to 2.5 mm d-1 in the transitional forest (Mato Grosso) and floodplain (Tocantins), and to 1 mm d-1 in the São Paulo cerrado.

  8. Comparative parasitism of the fish Plagioscion squamosissimus in native and invaded river basins.

    PubMed

    Lacerda, A C F; Takemoto, R M; Tavares-Dias, M; Poulin, R; Pavanelli, G C

    2012-08-01

    Biological invasions are considered a major threat to biodiversity around the world, but the role of parasites in this process is still little investigated. Here, we compared parasite infections of a host species in the areas where it originated and where it was introduced, and in native and introduced species in the same environment, using the endoparasites of the fish Plagioscion squamosissimus (Sciaenidae) in 3 Brazilian basins. Samples were taken in 2 rivers where the species is native, i.e., Solimões River (SO) and Tocantins River (TO), and where the species was introduced, the upper Paraná River (PR). In addition, abundances of diplostomids and larval nematodes were compared between P. squamosissimus and 2 native competitors in the PR, Hoplias malabaricus and Raphiodon vulpinus. In total, 13 species of endoparasites were recorded, but only Austrodiplostomum sp. and cestode cysts were present in all localities. Although infracommunity richness was similar, their species composition was slightly different among localities. General linear models using the relative condition factor of fish as response variables, and abundance of the most prevalent parasites as possible predictors showed that the condition of fish is negatively correlated with parasite abundance only in the native range (TO). Abundance of diplostomid eye flukes was higher in the PR, and in the native species H. malabaricus when compared to the invader, which might present an advantage for P. squamosissimus if they compete for prey. However, although P. squamosissimus may have lost some of its native parasites during its introduction to the PR, it is now possibly acting as a host for native generalist parasites. PMID:22468610

  9. Molecular phylogeny and diversification of a widespread Neotropical rainforest bird group: The Buff-throated Woodcreeper complex, Xiphorhynchus guttatus/susurrans (Aves: Dendrocolaptidae).

    PubMed

    Rocha, Tainá C; Sequeira, Fernando; Aleixo, Alexandre; Rêgo, Péricles S; Sampaio, Iracilda; Schneider, Horacio; Vallinoto, Marcelo

    2015-04-01

    The genus Xiphorhynchus is a species rich avian group widely distributed in Neotropical forests of Central and South America. Although recent molecular studies have improved our understanding of the spatial patterns of genetic diversity in some species of this genus, most are still poorly known, including their taxonomy. Here, we address the historical diversification and phylogenetic relationships of the X. guttatus/susurrans complex, using data from two mitochondrial (cyt b and ND2) and one nuclear (?-fibint7) genes. Phylogenetic relationships were inferred with both gene trees and a Bayesian-based species tree under a coalescent framework (?BEAST). With exception of the nuclear ?-fibint7 gene that produced an unresolved tree, both mtDNA and the species tree showed a similar topology and were congruent in recovering five main clades with high statistical support. These clades, however, are not fully concordant with traditional delimitation of some X. guttatus subspecies, since X. g. polystictus, X. g. guttatus, and X. g. connectens are not supported as distinct clades. Interestingly, these three taxa are more closely related to the mostly trans-Andean X. susurrans than the other southern and western Amazonian subspecies of X. guttatus, which constitutes a paraphyletic species. Timing estimates based on the species tree indicated that diversification in X. guttatus occurred between the end of the Pliocene and early Pleistocene, likely associated with the formation of the modern Amazon River and its main southern tributaries (Xingu, Tocantins, and Madeira), in addition to climate-induced changes in the distribution of rainforest biomes. Our study supports with an enlarged dataset a previous proposal for recognizing at least three species level taxa in the X. guttatus/susurrans complex: X. susurrans, X. guttatus, and X. guttatoides. PMID:25683049

  10. [Human exposure to mercury in the Brazilian Amazon: a historical perspective].

    PubMed

    Gonçalves, Aguinaldo; Gonçalves, Neusa Nunes da Silva e

    2004-12-01

    The objective of the present article was to present the most important data generated by a multicentric study carried out by Brazilian researchers who, with the support of national and international institutions, worked during the 1990s to describe human exposure to mercury in gold mining areas in the Brazilian Amazon. Three sets of procedures were followed with residents of the Tocantins and Xingu river basins: (1) clinical examination, based on a standardized protocol and performed by a single researcher, in order to identify five basic levels of contamination; (2) determination of mercury levels in blood, hair, and urine, using atomic absorption spectrophotometry (Xingu Project); and (3) investigation of genotoxicity by using four cytogenetic indicators. During the first stage, 41 individuals were studied. Mercury was found in miners and their family members. Contamination was significantly associated with occupation and showed a differential correlation with genotoxicity indicators. After that, the Xingu project, which encompassed 625 individuals, focused on 417 Kayapó natives from the Gorotire and Djudjetiktire villages; 142 miners; and 66 riverine individuals (ribeirinhos). The highest levels of methylmercury in hair and total mercury in blood and urine were found among the Indian population. Contamination with inorganic forms of mercury was also observed in the blood, hair, and urine of Indians. Following a specific recommendation from the World Health Organization, special attention was given to pregnant Gorotire and Djudjetiktire women, who, although not directly exposed to mercury vapors, showed considerable levels of mercury intoxication. Despite this worrisome scenario, a number of social achievements in the 1990s point to new standards of dignity in health care and of social ethics in Brazil that could benefit everyone, including the victims of environmental injury. PMID:15673484

  11. Estimating Evapotranspiration Using an Observation Based Terrestrial Water Budget

    NASA Technical Reports Server (NTRS)

    Rodell, Matthew; McWilliams, Eric B.; Famiglietti, James S.; Beaudoing, Hiroko K.; Nigro, Joseph

    2011-01-01

    Evapotranspiration (ET) is difficult to measure at the scales of climate models and climate variability. While satellite retrieval algorithms do exist, their accuracy is limited by the sparseness of in situ observations available for calibration and validation, which themselves may be unrepresentative of 500m and larger scale satellite footprints and grid pixels. Here, we use a combination of satellite and ground-based observations to close the water budgets of seven continental scale river basins (Mackenzie, Fraser, Nelson, Mississippi, Tocantins, Danube, and Ubangi), estimating mean ET as a residual. For any river basin, ET must equal total precipitation minus net runoff minus the change in total terrestrial water storage (TWS), in order for mass to be conserved. We make use of precipitation from two global observation-based products, archived runoff data, and TWS changes from the Gravity Recovery and Climate Experiment satellite mission. We demonstrate that while uncertainty in the water budget-based estimates of monthly ET is often too large for those estimates to be useful, the uncertainty in the mean annual cycle is small enough that it is practical for evaluating other ET products. Here, we evaluate five land surface model simulations, two operational atmospheric analyses, and a recent global reanalysis product based on our results. An important outcome is that the water budget-based ET time series in two tropical river basins, one in Brazil and the other in central Africa, exhibit a weak annual cycle, which may help to resolve debate about the strength of the annual cycle of ET in such regions and how ET is constrained throughout the year. The methods described will be useful for water and energy budget studies, weather and climate model assessments, and satellite-based ET retrieval optimization.

  12. Zircon and sphene U-Pb geochronology of Upper Proterozoic volcanic-arc rock units from southwestern Goiás, central Brazil

    NASA Astrophysics Data System (ADS)

    Pimentel, M. M.; Heaman, L.; Fuck, R. A.

    U-Pb isotopic measurements were performed on zircon and sphene fractions separated from three different calc-alkaline, arc-type metaplutonic and metavolcanic rock units from southwestern Goiás, central Brazil. An upper intercept age of 899±7 Ma was obtained for the Arenópolis orthogneisses. Metamorphic recrystallization of these rocks occurred at ca. 637 Ma, as revealed by a concordant sphene analysis. Zircons from a meta-rhyolite from a metamorphosed island arc complex in the same area (the Arenópolis volcano-sedimentary sequence), yielded an upper intercept age of 929±8 Ma. Sphenes from the same sample revealed a metamorphic recrystallization age of ca. 594 Ma. A sheared meta-rhyolite from the Jaupaci volcano-sedimentary sequence, exposed ca. 80 km further to the east, is considerably younger, with an upper intercept age of 764±14 Ma. The sphene ages in the Arenópolis rocks are similar to whole-rock Rb-Sr isochrons obtained for strongly sheared meta-rhyolites of the Jaupaci sequence (594±37 Ma) and in the Fazenda Nova area (600±31 Ma). These dates most probably reflect the development of important steep-dipping strike slip shear zones that characterize the metamorphic basement of southwestern Goiás. The protoliths of all three rock units originated in the Upper Proterozoic supracrustal fold belts of Tocantins Province in central Brazil. The zircon U-Pb ages suggest more than one period of arc magmatism in southwestern Goiás between ca. 900 and 700 Ma, preceding the main tectonic/metamorphic event of the Brasiliano Orogeny at ca. 600 Ma.

  13. Genetic structure of red-handed howler monkey populations in the fragmented landscape of Eastern Brazilian Amazonia.

    PubMed

    Bastos, Heitor B; Gonçalves, Evonnildo C; Ferrari, Stephen F; Silva, Artur; Schneider, Maria Paula C

    2010-10-01

    We genotyped 15 microsatellite loci in order to evaluate the effects of habitat fragmentation, caused by flooding of the Tucuruí reservoir, on the genetic structure of Alouatta belzebul in eastern Amazonia. The analysis included two populations sampled in 1984, representing both margins of the Tocantins river, and three populations sampled 18 years later. Minimal differences in the diversity levels between present-day (Ho = 0.62-0.69 and A(R) = 6.07-7.21) and pre-flooding (Ho = 0.60-0.62 and A (R) = 6.27-6.77) populations indicated there was no significant loss of genetic variability, possibly because of successful management strategies applied during the flooding. The changes observed were limited to shifts in the composition of alleles, which presumably reflect the admixture of subpopulations during flooding. Given this, there were significant differences in the Rst values (p = 0.05) in all but one between-site comparison. Both present-day and original populations showed a deficit of heterozygotes, which suggests that this may be typical of the species, at least at a local level, perhaps because of specific ecological characteristics. The relatively large number of private alleles recorded in all populations may be a consequence of the Wahlund effect resulting from population admixture or a process of expansion rather than the loss of rare alleles through genetic drift. Additionally, the levels of genetic variability observed in this study were higher than those reported for other species of Neotropical primates, suggesting good fitness levels in these A. belzebul populations. Regular genetic monitoring of remnant populations, especially on islands, should nevertheless be an integral component of long-term management strategies. PMID:21637590

  14. Hydrological impacts of land-use change and agricultural policy in the Brazilian Cerrado

    NASA Astrophysics Data System (ADS)

    Macedo, M.; Coe, M. T.; Soares-Filho, B.; Ferreira, L. G.; Panday, P. K.

    2013-12-01

    Land-use change and climate variability are two of the most important forces driving changes to the surface water and energy balance in tropical ecosystems. Our analysis combines satellite-derived data on rainfall (CRU), evapotranspiration (MOD16), soil water storage (GRACE), and land cover (MOD12Q1) to understand the effect of past (2000-2012) land cover changes and climate variability on the water balance of the Brazilian Cerrado (savannah woodlands). Based on these historical relationships, we examine potential future land-use transitions from native Cerrado to pasturelands and mechanized agriculture, using the Brazilian Water Agency's (ANA) 12th order watersheds as our unit of analysis. In the Cerrado, these watersheds constitute nearly 37,500 units (mean area ~5,400 ha) and serve as a useful proxy for property-level land-use decisions. Our future scenarios evaluate the potential ramifications of recent changes in the Brazilian Forest Code, which we estimate may allow for legal deforestation of an additional 40 × 2 million hectares of native Cerrado. Our analysis indicates that historical land-cover changes have already caused a significant decrease in evapotranspiration, leading to a three-fold increase in discharge in small watersheds and a nearly 25% increase in large river basins like the Tocantins-Araguaia. As global demand for agricultural commodities continues to rise, it is likely that large-scale conversion of the Cerrado will continue or accelerate in the coming decade. Our research suggests that the cumulative impact of such large-scale land cover change may shift the water balance sufficiently to alter regional precipitation and deplete groundwater stores. Future research will focus on understanding the potential feedbacks of these large-scale hydrological changes on regional climate and agricultural productivity.

  15. Teatro en Rio: Apertura y creatividad, violencia y evasión

    E-print Network

    Seibel, Beatriz

    1982-04-01

    reflexiona sobre un momento dramático de la historia brasi leña, cuando en 1970 se produce el secuestro de un embajador mientras Brasil gana la Copa Mundial de fútbol. Campeones del mundo tiene gran éxito de público, y a su vez Yan Michal- sky reconoce que...

  16. Mobilidades: um novo direito s cidades/metrpoles? Redes de transporte e produo do espao urbano: Tours e Salvador sobre novos trilhos

    E-print Network

    Paris-Sud XI, Université de

    Tema Mobilidades: um novo direito às cidades/metrópoles? Título Redes de transporte e produção do in "Diálogos Brasil França 2012 Construir a metrópole contemporânea, Sao Paulo : Brazil (2012)" #12;Redes de que qualquer espaço pode ser analisado e concebido considerando-o como um lugar, como uma rede ou como

  17. VIII Simpsio de Pesquisa Operacional e Logstica da Marinha 16 a 17 de agosto de 2005

    E-print Network

    Cruz, Frederico

    Janeiro ­ RJ - Brasil DETERMINAÇÃO DE MEDIDAS DE DESEMPENHO EM REDES DE FILAS FINITAS Frederico R. B. Cruz Sistemas modelados por redes de filas finitas configuradas em redes vêm atraindo a atenção de muitos de intervalos de confiança aplicado à estimação de medidas de desempenho de redes de filas finitas

  18. Programao da 3 Semana da Cultura Afro-Brasileira 25/11 (segunda-feira)

    E-print Network

    Souza, Max O.

    do solo, como em cima, ela enfatiza as tradições da capoeira, que em sua raiz está ligada aos rituais danças e dramatizações, que apresentam em comum a raiz negra africana. Recriada no Brasil, nas diferentes

  19. On the Hardness of the Minimum Height Decision Tree Eduardo S. Laber 1

    E-print Network

    Laber, Eduardo Sany

    ,COPPE/UFRJ, Brasil Abstract Let O = fo 1 ; o 2 ; : : : ; o n g be a set of objects and let T = ft 1 ; : : : ; t m g Complexity, Decision Trees 1 #12; 1 Introduction Let O = fo 1 ; o 2 ; : : : ; o n g be a set of objects

  20. Guia para a Avaliao do Risco Ambiental de Organismos

    E-print Network

    Parrott, Wayne

    Guia para a Avaliação do Risco Ambiental de Organismos Geneticamente Modificados 1ª Edição, São Paulo - ILSI Brasil 2012 #12;#12;Guia para a Avaliação do Risco Ambiental de Organismos Geneticamente para a Avaliação do Risco Ambiental de Organismos Geneticamente Modificados / [editores] Paulo Paes de

  1. Estimación de una función de demanda de bienes de consumo duradero en América Latina 1890-1913

    Microsoft Academic Search

    Carolina Román Ramos

    En este trabajo se realiza una estimación de la demanda por importación de bienes de consumo duradero en América Latina en el período 1890-1913. Por un lado, se presenta la construcción del consumo de bienes duraderos a través de las estadísticas de importaciones para seis países de la región: Argentina, Brasil, Chile, Cuba, México y Uruguay. En segundo lugar, partiendo

  2. Supporting Knowledge Communities with Online Distance Learning System Platform

    Microsoft Academic Search

    Juarez Sagebin; Candida Pasquali

    The Online Distance Learning System from CRT Brasil Telecom (Brazilian Telephone Company), has showed that technology and education found a commum point to perform good educational methodologies. Contents and ODL (Online Distance Learning) programs reached a very good point of performance and moreover, internal culture is much more prepared to use Online Learning now than ever. The next target now

  3. POPULAÇÃO DE PLANTAS NO CONSORCIO MAMONEIRA\\/MILHO. I. PRODUÇÃO E COMPONENTES DA PRODUÇÃO

    Microsoft Academic Search

    DEMÓSTENES MARCOS PEDROSA DE AZEVED; DOS SANTOS; NAPOLEÃO ESBERARD DE MACÊDO; FERNANDO ANTÔNIO; SOUTO BATISTA; LAUDEMIRO BALDOfNO DA NÓBREGA; DIRCEU JUSTINIANO VIEIRA; JOSÉ RODRIGUES

    RESUMO: Um experimento de campo foi conduzido em Monteiro, Paraíba, Brasil, nos anos agrícola de 1994 e 1995, com o objetivo de se investigar o efeito de população de mamoneira (Ricinus communis L.) e de milho (Zea mays L.) no rendimento e nos componentes da produção dessas culturas em consórcio. Os resultados mais expressivos foram: 1) o rendimento das culturas

  4. OBTENÇÃO DE LINHAGENS DE TOMATEIRO DE CRESCIMENTO DETERMINADO COM RESISTÊNCIA MÚLTIPLA A NEMATÓIDES DE GALHAS E A TOSPOVÍRUS

    Microsoft Academic Search

    JAMILSON W. A. CARVALHO; WILSON R. MALUF; ANTÔNIA R. FIGUEIRA; LUIZ A. A. GOMES

    RESUMO - O objetivo deste trabalho foi obter linh a- gens de tomateiro com hábito de crescimento determi- nado e com resistência combinada aos nematóides cau- sadores das galhas de maior ocorrência em campos de produção, e aos tospovírus, que são fatores limitantes ao cultivo dessa hortaliça no Brasil. Famílias F 3 ((Ne- madoro x Stevens) x Nemadoro) e F4

  5. ANÁLISE COMPARATIVA DE SISTEMAS DE PRODUÇÃO DE GADO DE CORTE: PASTO ROTACIONADO X CONFINAMENTO

    Microsoft Academic Search

    JAILSON DE OLIVEIRA ARIEIRA; CLÁUDIA REGINA DIAS-ARIEIRA

    O Brasil tem se destacado no contexto mundial como um dos maiores produtores e exportadores de carne bovina. Essa posição foi cons eguida graças à introdução de uma série de inovações tecnológicas e à tomada de consc iência dos criadores de que é necessário acompanhar o desenvolvimento tecnológico e profissionalizar-se para obter competitividade no mercado atual. Nesse sentido, o criador

  6. Montagem e Resultados Preliminares de Aparato Experimental para Estudo Térmico de Materiais Ablativos

    Microsoft Academic Search

    Gabriel Antônio de Souza Júnior; Lucas Mello de Campos Arruda; Walber Ferreira Braga; Márcia Barbosa; Henriques Mantelli

    O estudo do fenômeno físico de ablação, que ocorre em determinados materiais usados em sistemas de proteção térmica de satélites, bem como a caracterização das propriedades térmicas dos mesmos são considerados de grande importância, por representar um ponto estratégico para a tecnologia espacial. No Brasil, os estudos de materiais ablativos têm sido realizados dentro da perspectiva do Programa Nacional de

  7. 2014 International SWAT Conference July 28-29. 2014 Workshops

    E-print Network

    . Srinivasan, TAMU ­ College Station, USA Jeff Arnold, USDA-ARS, Temple, USA Josiclêda Galvíncio, UFPE ­ Recife, BR Allan Jones, TAMU ­ Temple, USA Nadia B. Bonumá, UFSC ­ Florianópolis, BR Ênio França, UFRPE ­ Recife, BR Contact: Suzana Maria Gico Lima Montenegro Universidade Federal de Pernambuco - Brasil E

  8. Elementos de política, riesgos ante el cambio climático, complementariedad entre las FNCE y el sin, y costos indicativos de las FNCE

    Microsoft Academic Search

    Ernesto Torres; José Maria Rincón; Edinson Lozano

    2011-01-01

    En este documento se presentan y analizan las experiencias internacionales en políticas para el desarrollo de las FNCE en la Unión Europea y en varios países de la Unión (Alemania, España y Croacia). También se presentan y analizan estas experiencias en varios países de América Latina (Méjico, Perú y Brasil). En el capítulo tercero, se analizan elementos de política en

  9. Rickettsial infection in capybaras (Hydrochoerus hydrochaeris) from São Paulo, Brazil: serological evidence for infection by Rickettsia bellii and Rickettsia parkeri

    Microsoft Academic Search

    Richard C. Pacheco; Mauricio C. Horta; Jonas Moraes-Filho; Alexandre C. Ataliba; Adriano Pinter; Marcelo B. Labruna

    2007-01-01

    Introducción. En Brasil, los capibaras (Hydrochoerus hydrochaeris) son importantes huéspedes para garrapatas del género Amblyomma, las cuales transmiten rickettsiosis a humanos y animales. Por lo tanto, estos roedores pueden ser potenciales centinelas para detectar infección por rickettsia. Objetivos. Este trabajo evaluó la infección por rickettsia en capibaras de diferentes regiones del estado de São Paulo, donde las rickettsiosis nunca han

  10. Mamferos em estudos de avaliao ambiental A capivara, Hydrochoerus hydrochaeris

    E-print Network

    Simões-Lopes, Paulo César

    : zooarqueologia, artefatos ósseos, capivara, sul do Brasil Abstract The capybara, Hydrochoerus hydrochaeris of animals can be found. The goal of this study was to quantify the skeletal remains of capybaras found individuals were identified. The anatomic regions of the capybaras most sought-after by pre

  11. A robust, fully adaptive hybrid level-set/front-tracking method for two-phase flows with an accurate surface

    E-print Network

    Bigelow, Stephen

    -SP, Brasil. 3 Faculdade de Engenharia Mec^anica, Universidade Federal de Uberl^andia, CEP 38400- 902, Uberl.D. Ceniceros), roma@ime.usp.br (A.M. Roma), aristeus@mecanica.ufu.br (A. Silveira-Neto), mmvillar@mecanica

  12. UM PROJETO ALTERNATIVO PARA INICIAÇÃO EM TECNOLOGIAS DIFITAIS NA FORMAÇÃO INICIAL DE PROFESSORES DE CIÊNCIAS E BIOLOGIA

    Microsoft Academic Search

    Simão Marinho

    Uma discussão sobre a formação de professores que sejam capazes de incorporar as tecnologias digitais na educação como recurso no processo de ensino -aprendizagem nas escolas da educação básica no Brasil passa necessariamente por um questionament o da prática atual das nossas licenciaturas em plena Era da Informação... De uma maneira geral, nas licenciaturas brasileiras ainda não se usam os

  13. SOME ASPECTS OF THE UTILIZATION OF POLLEN ANALYSIS IN ECOLOGICAL RESEARCH

    E-print Network

    Paris-Sud XI, Université de

    quantitative data which can be used for ecological studies. The analysis was performed with four pollen samplesSOME ASPECTS OF THE UTILIZATION OF POLLEN ANALYSIS IN ECOLOGICAL RESEARCH M. RAMALHO A. KLEINERT, Brasil SUMMARY This paper discusses some methodological aspects of pollen analysis designed to obtain

  14. Genetic variation and population structure in Mytella spp 197 Genetics and Molecular Research 4 (2): 197-202 (2005) www.funpecrp.com.br

    E-print Network

    Solé-Cava, Antonio M.

    Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Bloco A - CCS - Ilha do Fundão, 21941-590 Rio de Janeiro, RJ, Brasil Corresponding author: A.M. Solé-Cava E-mail: sole@biologia

  15. This article was downloaded by: [Jrme Pousin] On: 04 December 2012, At: 01:49

    E-print Network

    Buscaglia, Gustavo C.

    House, 37-41 Mortimer Street, London W1T 3JH, UK Applicable Analysis: An International Journal 5208, bat. L. de Vinci, 20 Av. A. Einstein, F-69100 Villeurbanne Cedex, France Version of record first, Brasil; b Universite´ de Lyon CNRS, INSA-Lyon ICJ UMR 5208, bat. L. de Vinci, 20 Av. A. Einstein, F-69100

  16. UNIVERSIDADE DE BRASLIA INSTITUTO DE CINCIAS SOCIAIS

    E-print Network

    Maier, Rudolf Richard

    UNIVERSIDADE DE BRASÍLIA INSTITUTO DE CIÊNCIAS SOCIAIS PROGRAMA DE PÓS-GRADUAÇÃO EM ANTROPOLOGIA EDITAL No. 03/2013 UNIVERSIDADE DE BRASÍLIA PROGRAMA DE PÓS-GRADUAÇÃO EM ANTROPOLOGIA SOCIAL EDITAL No 03/2013 SELEÇÃO DE CANDIDATOS RESIDENTES NO BRASIL ÀS VAGAS DO PROGRAMA DE PÓS- GRADUAÇÃO EM ANTROPOLOGIA SOCIAL

  17. UNIVERSIDADE DE BRASLIA INSTITUTO DE CINCIAS SOCIAIS

    E-print Network

    Maier, Rudolf Richard

    UNIVERSIDADE DE BRASÍLIA INSTITUTO DE CIÊNCIAS SOCIAIS PROGRAMA DE PÓS-GRADUAÇÃO EM ANTROPOLOGIA EDITAL No. 03/2014 UNIVERSIDADE DE BRASÍLIA PROGRAMA DE PÓS-GRADUAÇÃO EM ANTROPOLOGIA SOCIAL 03/2014 SELEÇÃO DE CANDIDATOS RESIDENTES NO BRASIL ÀS VAGAS DO PROGRAMA DE PÓS- GRADUAÇÃO EM ANTROPOLOGIA SOCIAL

  18. Partnership for International Research and Education A Global Living Laboratory for Cyberinfrastructure Application Enablement

    E-print Network

    Sadjadi, S. Masoud

    that is fast, reliable, easy and affordable, suiting their company's needs. This project provides a competitive was spread throughout Rio de Janeiro, so not all departments were located in one location. Our campus, as it was basically a five minute walk. Food The best thing about Brasil was the food. Most of the restaurant

  19. PROMOÇÃO DE SAÚDE DAS FAMÍLIAS DE DOCENTES DE ENFERMAGEM: APOIO, REDE SOCIAL E PAPÉIS NA FAMÍLIA HEALTH PROMOTION AMONG NURSING FACULTY MEMBERS' FAMILIES: SUPPORT, SOCIAL NETWORK AND ROLES IN THE FAMILY PROMOCIÓN DE SALUD DE LAS FAMILIAS DE DOCENTES DE ENFERMERÍA: APOYO, RED SOCIAL Y ROLES EN LA FAMILIA

    Microsoft Academic Search

    Jaqueline Dias; Lucila Castanheira Nascimento; Iranilde José Messias Mendes; Semiramis Melani; Melo Rocha; Nascimento LC; Mendes IJM; Rocha SMM

    2007-01-01

    RESUMO: O objetivo deste trabalho é identificar apoios sociais, redes e papéis em famílias de docentes de enfermagem, utilizando a fundamentação teórica sobre promoção de saúde em enfermagem familiar. O cenário deste estudo constituiu-se de um Curso de Graduação em Enfermagem de uma Universidade do Brasil. Selecionaram-se como sujeitos deste estudo três famílias de enfermeiras docentes responsáveis por disciplinas do

  20. 4 0 Institut de recherche pour le dveloppement En el mbito internacional

    E-print Network

    redes" del programa Sud Expert Plantes, en Burkina Faso. - Programa "Mali contemporáneo, apoyo a la investigación en ciencias humanas y sociales", lanzado por la AIRD - Primer foro del Programa Monitoreo del a asistencia médica y cohesión social en América Latina - Año de Francia en Brasil: primer foro franco

  1. Dieta cetogênica e dieta de Atkins modificada no tratamento da epilepsia refratária em crianças e adultos

    Microsoft Academic Search

    Luciana Midori Inuzuka-Nakaharada

    2008-01-01

    RESUMO Introdução: A dieta cetogênica (DC) e a dieta de Atkins modificada (DAM) são dietas terapêuticas mun- dialmente utilizadas no tratamento da epilepsia refratária em crianças e adultos. No Brasil estas modalidades de tratamento são pouco indicadas, restringindo a poucos centros. Metodologia: Revisão de literatura sobre a utilização da DC e DAM no tratamento da epilepsia refratária. Conclusões: A DC

  2. RT-PCR DETECTION OF CITRUS LEPROSIS VIRUS IN SHRUBS AND WEED PLANTS INFECTED THROUGH Brevipalpus phoenicis (ACARI: TENUIPALPIDAE)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    No Brasil são gastos anualmente cerca de US$ 80 milhões para controle de Brevipalpus phoenicis, vetor do vírus leprose dos citros (CiLV). Este ácaro possui comportamento polífago e cosmopolita, presente em inúmeras espécies de plantas junto aos pomares cítricos. Neste trabalho foi investigada a poss...

  3. Rede Bayesiana aplicada ao monitoramento da Moratria da Soja Marcio Pupin Mello1

    E-print Network

    Hammerton, James

    sensing, soy moratorium, artificial intelligence, deforestation, Brazilian Amazon, sensoriamento remoto, 12227-010, Brasil {mello, adami, bernardo, daniel}@dsr.inpe.br Abstract. The Soy Moratorium is intended to reduce deforestation in the Brazilian Amazon. Its monitoring is supported by remote sensing satellite

  4. Results from the first flight of the VSB-30 sounding rocket

    Microsoft Academic Search

    Ariovaldo Felix Palmerio; Eduardo Dore Roda; Peter Turner; Wolfgang Jung

    2005-01-01

    The successful qualification flight of the VSB-30 occurred in October 23, 2004, in Alcantara, Brasil, after a long campaign mainly due to adverse wind conditions. In the wake of this flight, lies the renewed hope to keep the European sounding rocket microgravity program alive. This paper presents technical aspects of the main subsystems, the rocket and flight results. In the

  5. Legislación y control de riesgos de salud en América Latina y el Caribe

    Microsoft Academic Search

    Mónica Bolis

    2002-01-01

    Este estudio analiza la legislación en Latín América y el Caribe con el propósito de determinar en qué medida contribuyen, o no, a la eliminación de riesgos para la salud. Los países incluidos son: Argentina, Bahamas, Barbados, Belice, Bolivia, Brasil, Chile, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Guyana, Honduras, Jamaica, México, Nicaragua, Panamá, Paraguay, Perú, República Dominicana, Trinidad y

  6. Comunidades virtuais de aprendizagem e interação dialógica: do corpo, do rosto

    Microsoft Academic Search

    Margarete Axt

    RESUMO: A formação ou educação a distância (EAD) tem gerado, no Brasil, inúmeros questionamentos a respeito da necessidade ou não de encontros presenciais, da freqüência deles ou dos períodos em que devem se realizar, bem como sobre a pauta desses encontros. Questionamentos como esses têm influenciado as políticas públicas brasileiras para a EAD, em nome da manutenção de uma certa

  7. Diabetes e transtornos alimentares: Diabetes e transtornos alimentares: Diabetes e transtornos alimentares: Diabetes e transtornos alimentares: Diabetes e transtornos alimentares: uma associação de alto risco uma associação de alto risco uma associação de alto risco uma associação de alto risco uma associação de alto risco Diabetes and eating disorders: a high Diabetes and eating disorders: a high Diabetes and eating disorders: a high Diabetes and eating disorders: a high Diabetes and eating disorders: a high

    Microsoft Academic Search

    Alexandre Pinto de Azevedo; Marcelo Papelbaum; Fernanda D'Elia

    O diabetes mellitus (DM) é uma doença crônica que cursa com várias complicações clínicas e está entre as maiores causas de morbidade e mortalidade no Brasil. A presença de comorbidades psiquiátricas, principalmente depressão e transtornos alimentares (TA), no paciente diabético, pode interferir no controle metabólico e aumen- tar as complicações da doença. Entre os vários fatores na associação entre o

  8. XXIII Congresso Brasileiro em Engenharia Biomdica XXIII CBEB IDENTIFICAO DA DOENA DE CHAGAS BASEADA EM ANLISE DE

    E-print Network

    Carvalho, João Luiz

    XXIII Congresso Brasileiro em Engenharia Biomédica ­ XXIII CBEB 1 IDENTIFICA��O DA DOEN�A DE CHAGAS-DF, Brasil joaoluiz@pgea.unb.br Abstract: Chagas' disease severely affects autonomic function, specially through the analysis of heart rate variability (HRV). This work aims at identifying Chagas' disease

  9. Educating and Training Undergraduate Applied Statisticians.

    ERIC Educational Resources Information Center

    Peres, Clovis A.; And Others

    1985-01-01

    A course on Applied Statistics, offered since 1978 at the Instituto de Matematica e Estatistica, Universidade de Sao Paulo, Brasil, is designed to educate statisticians at the bachelor's level for jobs in government statistical offices, industry, and business. (Author/LMO)

  10. Special Publication No. 2, A Bibliography On Chagas' Disease (1909-1969)

    E-print Network

    Olivier, Margaret C.; Olivier, Louis J.; Segal, Dorothy B.

    1972-01-01

    Anonymous. See also World Health Organization Anonymous 1925.- Problema do saneamento no Estado de Minas Geraes. (A sanitary problem in Minas G?rais.) 8. Cong. Brasil. Med. (Rio de Janeiro, Oct. 1918), 1:267-284. 1940,- Roma?a's sign for the diagnosis...

  11. ESTUDO DOS PARÂMETROS DO MODELO DE VAZAMENTOS DE UM SETOR DA REDE DE DISTRIBUIÇÃO DE ÁGUA DE PIRACICABA-SP

    Microsoft Academic Search

    Alexandre Kepler Soares; Luisa Fernanda; Ribeiro Reis

    Resumo - O presente estudo visa avaliar as perdas por vazamento para um setor da rede de distribuição de água da cidade de Piracicaba, SP, Brasil. Para tanto, utiliza-se um procedimento iterativo de avaliação hidráulica que considera as perdas por vazamento e a dependência das demandas com a pressão, acoplado ao simulador hidráulico EPANET 2 (Rossman, 2000), com vistas à

  12. ERRÂNCIAS SERTANEJAS: AS MIGRAÇÕES CAMPO-CIDADE EM MONTES CLAROS NO NORTE DE MINAS GERAIS

    Microsoft Academic Search

    Andrea Maria Narciso; Carlos Rodriques B. Brandao

    2008-01-01

    Este trabalho apresenta reflexões sobre a dinâmica interna rural no Brasil com ênfase para o Norte de Minas Gerais. A reflexão sobre a migração rural na cidade do sertão de Minas Gerais corrobora a hipótese das migrações estarem ocorrendo cada vez mais dentro das próprias regiões, em função do crescimento incentivado pelo Estado em algumas cidades e também a desilusão

  13. SELEÇÃO PRECOCE DE CLONES DE BATATA PARA CARACTERES DO TUBÉRCULO1

    Microsoft Academic Search

    GEOVANI BERNARDO AMARO; CÉSAR AUGUSTO; BRASIL PEREIRA; EDUARDO DE SOUZA LAMBERT; LEITE MARTINS

    RESUMO - Nos últimos anos, foi despertado um grande interesse para o pr ocessamento da batata na forma de fritura no Brasil. Visando à obtenção de culti- vares nacionais que atendam aos padrões de qualidade culinária exigidos pelas indústrias de processamento, os programas de melhoramento de batata têm estabelecido estratégias para a redução de custos e de tempo. Reali- zou-se

  14. Molecular and Biochemical Parasitology, 27 (1988) 63-70 63 Peculiar sequence organization of kinetoplast DNA minicircles from

    E-print Network

    Simpson, Larry

    1988-01-01

    Oswaldo Cruz, Rio de Janeiro, Brazil, and 2Department of Biology and Molecular Biology Institute, Avenida Brasil 4365, CEP 21045 Rio de Janeiro, RJ, Brazil. Present addresses: *Innogenetics NV, Industrie, stocks, strains and clones of several kine- toplastid protozoa, including the human patho- gens

  15. O USO DE MODELOS MATEMÁTICOS NA ESTIMATIVA DA DENSIDADE BÁSICA DA MADEIRA EM PLANTIOS DE CLONES DE Eucalyptus sp

    Microsoft Academic Search

    Cláudio Roberto Thiersch; Jose Roberto Scolforo; Antonio Donizette de Oliveira; Gabriel Dehon; Sampaio Peçanha Rezende; Romualdo Maestri

    2 , em torno das quais foram cubadas 216 árvores. Foram avaliados 2 clones (híbridos de Eucalyptus grandis e Eucalyptus urophylla), nas idades 3, 4,5 e 6 anos, provenientes de três sítios, na região leste do Brasil, abrangendo a parte leste e nordeste do Estado do Espírito Santo e o extremo sul do Estado da Bahia. Em cada altura de

  16. ConPor: um modelo de gerao conceitual para o Lucia Specia, Lucia Helena Machado Rino

    E-print Network

    Specia, Lucia

    ConPor: um modelo de geração conceitual para o português Lucia Specia, Lucia Helena Machado Rino ­ 13565-905 ­ São Carlos ­ SP ­ Brasil {lspecia,lucia}@dc.ufscar.br Abstract. This paper describes Con

  17. Carlos Menem y Fernando Collor de Mello ¿Arquitectos del Mercosur? Algunas reflexiones sobre calidad democrática e integración regional

    Microsoft Academic Search

    SANTIAGO C. LEIRAS

    El 21 de Marzo de 1991, los presidentes y ministros de relaciones exteriores de la Argentina, Brasil, Paraguay y Uruguay suscribieron el Tratado de Asunción para la constitución de un mercado común entre sus países, complementando luego el marco institucional para la conformación del MERCOSUR con la firma del Protocolo de Brasilia, en el mes de Diciembre del año 1991,

  18. Title: Societal Communication and Brand Equity Abstract: Previous research on corporate social responsibility generally acknowledges that

    E-print Network

    Boyer, Edmond

    , Nestlé, Nike) or brand websites (The Body Shop, Natura Brasil), through relationship marketing toolsTitle: Societal Communication and Brand Equity Abstract: Previous research on corporate social characteristics on brand equity. In this paper we draw on Keller's (2003) brand equity framework to derive

  19. Accumulation of Po by benthic marine algae

    Microsoft Academic Search

    R. C. Gouvea; M. E. Castelo Branco; P. L. Santos; V. A. Gouvea

    1988-01-01

    The accumulation of polonium Po by various species of benthic marine seaweeds collected from 4 different points on the coast of Rio de Janeiro, RJ (Brasil), showed variations by species and algal groups. The highest value found was in red alga, Plocamium brasiliens is followed by other organisms of the same group. In the group of the brown alga, the

  20. Exploring the hydrochemical evolution of brines leading to sylvite precipitation in ancient evaporite basins

    Microsoft Academic Search

    Dioni Cendón; Juan Jose Pueyo; Carlos Ayora; Javier García Veigas; Marie-Madeleine Blanc-Valleron

    2010-01-01

    Sylvite is a very common mineral in ancient evaporite deposits. Due to the absence of current deposits, the natural geochemical mechanism\\/s for synsedimentary sylvite precipitation and accumulation are not well understood. Numerous sylvite deposits or portions of them have been described as a result of diagenesis (i.e. Sergipe subbasin, Brasil). However, a number of deposits have been described as synsdimentary

  1. A Gestão Estratégica das Instituições de Ensino Superior: uma contribuição ao melhor desempenho no caso brasileiro

    Microsoft Academic Search

    Alfredo Colenci Júnior; Ana Lúcia Spigolon; Marco Anselmo de Godoi; Maria Elizete Luz Sáes

    Resumo: O crescimento no número de instituições de Ensino Superior no Brasil tem provocado inadequações, decorrentes da má gestão e do baixo comprometimento em relação à qualidade do processo educacional. O não alinhamento da educação superior com políticas de desenvolvimento e a falta de uma efetiva regulamentação institucional, no atendimento às demandas regionais, representam uma grave dispersão de esforços e

  2. OS DESCOMPASSOS DO PROGRAMA NACIONAL DE PRODUÇÃO E USO DE BIODIESEL (PNPB) NO NORDESTE

    Microsoft Academic Search

    Marcos Falcao Goncalves; Francisco Raimundo Evangelista

    2008-01-01

    O Programa Nacional de Produção e Uso do Biodiesel – PNBP é uma resposta brasileira às preocupações mundiais com o esgotamento dos combustíveis fósseis. O Brasil tem papel de destaque no cenário mundial, graças, principalmente, às suas vantagens comparativas, especialmente um amplo território com clima favorável ao cultivo de grande variedade de matérias-primas potenciais para a produção de biocombustíveis e

  3. Estados Unidos y cuatro países de América Latina se unen para combatir el cáncer

    Cancer.gov

    El Instituto Nacional del Cáncer (NCI) de Estados Unidos formalizó esta semana alianzas bilaterales con los gobiernos de Argentina, Brasil, México y Uruguay, para acelerar el avance contra el cáncer en la población hispana de Estados Unidos y de América Latina y mejorar la investigación del cáncer.

  4. O IMAGINÁRIO BRASILEIRO, HUMOR E SÁTIRA: CONTEXTO ADEQUADO À RECEPÇÃO DAS OBRAS DE MARK TWAIN

    Microsoft Academic Search

    Idegar Alves BARREIRO

    2005-01-01

    Este texto enfoca o contexto brasileiro de fins de 1800 às primeiras décadas de 1900, apresentando características culturais, sociais e políticas do Brasil naquele período, mostrando uma sociedade em transformação, susceptível a influências externas, especialmente norte- americanas. Evidenciamos, também, o humor e a sátira como parte integrante na formação do imaginário brasileiro. Parte final daquele período coincide com a Belle

  5. A Minha Biblioteca uma empresa formada pelo consrcio

    E-print Network

    Floeter, Sergio Ricardo

    livros acadêmicos do Brasil: #12;· As quatro editoras oferecem em uma única plataforma acesso online a um extenso acervo de livros técnicos, científicos e profissionais de qualidade reconhecida nacionalmente. · Através da plataforma Minha Biblioteca alunos e docentes terão acesso a mais de 5.030 livros de diversas

  6. Universidade de So Paulo Instituto de

    E-print Network

    Morandini, Andre C.

    por Giovanni Battista Albrizzi (1698-1777), um proeminente editor veneziano de livros e mapas o negócio do pai, fazia parte de uma família ativa na publicação e venda de livros em Veneza há 150 livros publicados por toda a Europa." Fonte: Biblioteca Nacional do Brasil; OD cart551648.tif 1 Diretor

  7. O Turismo Rural da cidade de Piracicaba e sua expansão utilizando-se as ferramentas do planejamento estratégico contempladas no Projeto Piracicaba 2010 The Rural Tourism of the town of Piracicaba and its expansion via the strategic planning tools described in the town planning for 2010

    Microsoft Academic Search

    Marcos Antonio Gallani; Antonio Carlos Giuliani; Nadia Kassouf Pizzinatto; Dalila Alves Correa

    Resumo A exploração turística rural vem sendo encarada como mais um produto capaz de gerar empregos e divisas locais, possibilitando a entrada de turistas de outros países em busca de diferentes culturas. O trabalho analisa a importância do planejamento na utilização dos espaços rurais, procurando definir quais são as características principais, e o seu crescimento no Brasil e no mundo.

  8. The Brazil Eucalyptus Potential Productivity Project: Influence of water, nutrients and stand uniformity on wood production

    E-print Network

    Binkley, Dan

    The Brazil Eucalyptus Potential Productivity Project: Influence of water, nutrients and stand, Brazil f Veracel Celulose, Eunapolis, Bahia, Brazil g International Paper do Brasil, Mogi Guacu, Sao Paulo, Brazil h Suzano Papel e Celulose, Teixeira de Freitas, Bahia, Brazil i CENIBRA, Ipatinga, Minas

  9. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    Pereira de Lucena Departamento de Informática PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO - BRASIL #12;Monografias em Ciência da Departamento de Informática Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro

  10. Curriculum Vitae A. Institution

    E-print Network

    Liu, I-Shih

    do Rio de Janeiro Caixa Postal 68530 Rio de Janeiro, RJ 21945-970, Brasil Telephone: +55 (21) 2562. Personal Status: Married, one son Home address: Rua Camba´uba, 985 Apt. 303 Rio de Janeiro, RJ 21940 of Rio de Janeiro Brazil · 1/2012­3/2012: Visiting Professor Graduate Institute of Applied Geology

  11. 503503503503503Mem Inst Oswaldo Cruz, Rio de Janeiro, Vol. 92(4): 503-507, Jul./Aug. 1997 Immune Response to Trypanosoma cruzi Shed Acute Phase

    E-print Network

    503503503503503Mem Inst Oswaldo Cruz, Rio de Janeiro, Vol. 92(4): 503-507, Jul./Aug. 1997 Immune de Bioquímica e Biologia Molecular, Instituto Oswaldo Cruz, Rio de Janeiro, Brasil ***Fundación Vecteurs", Casila Postal 9214, La Paz, Bolivia *Universidad Mayor de San Andres, Instituto Boliviano de

  12. Universidade Federal do Rio de Janeiro Instituto de Biologia

    E-print Network

    Paiva, Paulo Cesar de

    Universidade Federal do Rio de Janeiro Instituto de Biologia Departamento de Zoologia CCS ­ Bloco A, Ilha do Fundão, 21941-590, Rio de Janeiro - RJ - Brasil ZOOLOGIA II - IBZ 122 Noturno 1o semestre de;Universidade Federal do Rio de Janeiro Instituto de Biologia Departamento de Zoologia CCS ­ Bloco A, Ilha do

  13. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    José Pereira de Lucena Departamento de Informática PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL #12;Monografias em Ciência da Departamento de Informática Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro

  14. Universidade Federal do Rio de Janeiro Instituto de Biologia

    E-print Network

    Paiva, Paulo Cesar de

    Universidade Federal do Rio de Janeiro Instituto de Biologia Departamento de Zoologia CCS ­ Bloco A, Ilha do Fundão, 21941-590, Rio de Janeiro - RJ - Brasil ZOOLOGIA II - IBZ 122 Diurno 1o semestre de #12;Universidade Federal do Rio de Janeiro Instituto de Biologia Departamento de Zoologia CCS ­ Bloco

  15. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL #12;PUC RIO - DEPARTAMENTO DE INFORMÁTICA ISSN 0103-9741 Monografias em Ciência da Departamento de Informática Pontifícia Universidade Católica do Rio de Janeiro ­ PUC-Rio Rua Marquês de São

  16. Tecnologia de Informao Aplicada Educao: Um (Meta) Curso no Ambiente AulaNet

    E-print Network

    Endler, Markus

    Rio de Janeiro -- PUC­Rio R. M. S. Vicente 225 Gávea Rio de Janeiro 22453900 Brasil aulanet@les.inf.puc­rio at the Catholic University of Rio de Janeiro (PUC­Rio). AulaNet is an environment for the creation, participation.br PUC­RioInf.MCC17/00. Março de 2000. RESUMO Este trabalho descreve um curso desenvolvido

  17. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    Informática PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL #12;PUC RIO - DEPARTAMENTO DE INFORMÁTICA ISSN 0103-9741 Monografias em-900 Rio de Janeiro RJ Brazil Tel. +55 21 3114-1516 Fax: +55 21 3114-1530 E-mail: bib-di@inf.puc-rio.br #12

  18. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO - BRASIL #12 Lucena1 1 PUC-Rio, Computer Science Department, LES - Rio de Janeiro - Brazil 2 Federal University of Rio Informação PUC-Rio Departamento de Informática Rua Marquês de São Vicente, 225 - Gávea 22451-900 Rio de

  19. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO - BRASIL Pereira de Lucena2 (editors) 1 Systems Engineering and Computer Science Program ­ UFRJ ­ Rio de Janeiro, Brazil 2 Department of Informatics ­ PUC-Rio ­ Rio de Janeiro, Brazil maculan@cos.ufrj.br, lucena@inf.puc-rio

  20. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    Lucena Departamento de Informática PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO - BRASIL #12;Monografias em Ciência da Computação, No. 03 Pereira de Lucena 2 1 PUC-Rio, Rio de Janeiro ­ Brazil 2 PUC-Rio, Computer Science Department, LES - Rio

  1. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DEGraf) ­ Departamento de Informática ­ Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio) 2 School-900 Rio de Janeiro RJ Brasil Tel. +55 21 3114-1516 Fax: +55 21 3114-1530 E-mail: bib-di@inf.puc-rio.br Web

  2. R u t c o r R e p o r t

    E-print Network

    a Universidade Federal do Rio de Janeiro, Instituto de Matem'atica, Caixa Postal 68530, 21944 Rio de Janeiro, RJ 401, CEP 22453, Rio de Janeiro, RJ, Brasil. oscar@ele.puc­rio.br #12; Rutcor Research Report RRR 45 PUC­Rio, Dept. de Engenharia El'etrica, Rua Marquâ??es de S~ao Vicente 225, Predio Cardeal Leme, Sala

  3. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Barbosa, Alberto

    Departamento de Informática PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL #12;PUC RIO - DEPARTAMENTO DE INFORMÁTICA ISSN 0103 ­ LES Departamento de Informática Pontifícia Universidade Católica do Rio de Janeiro ­ PUC-Rio Rua

  4. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL PUC-Rio Departamento de Informática Rua Marquês de São Vicente, 225 - Gávea 22453-900 Rio de Janeiro Carvalho 1 Departamento de Ciência da Computação ­ Universidade Federal Fluminense (UFF) bneto@inf.puc-rio

  5. do Rio de JaneiRo e So Paulo: PaRa PRefeito e PReSidente naS cidadeS

    E-print Network

    do Rio de JaneiRo e São Paulo: PaRa PRefeito e PReSidente naS cidadeS a geogRafia do voto na Janeiro e São Paulo: 1996-2010 Cesar Romero Jacob Pontifícia Universidade Católica do Rio de Janeiro Rio de Janeiro, Brasil Dora Rodrigues Hees Pontifícia Universidade Católica do Rio de Janeiro Rio de

  6. Sueni de Souza Arouca Metodo implicito para reconstruc~ao de curvas

    E-print Network

    ´e Eugenio Leal Coordenador Setorial do Centro T´ecnico Cient´ifico -- PUC­Rio Rio de Janeiro, 13 de Licenciatura em Matem´atica na Universidade do Estado do Rio de Janeiro ­ UERJ (Rio de Janeiro, Brasil). Ficha Pacheco R. Velho. -- Rio de Janeiro : PUC­Rio, Departamento de Matem´atica, 2006. v., 64 f: il. ; 29,7 cm

  7. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    Informática PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL #12;PUC RIO - DEPARTAMENTO DE INFORMÁTICA ISSN 0103-9741 Monografias em PUC-Rio Departamento de Informática Rua Marquês de São Vicente, 225 - Gávea 22453-900 Rio de Janeiro

  8. Relatrio da Comisso de planejamento da instalao do Centro de Pesquisas Fsicas da URGS

    E-print Network

    dos Santos, C.A.

    NO BRASIL Em São Paulo e no Rio de Janeiro, junto às Faculdades de Filosofia ofi- ciais, iniciaram-se os Centro Brasileiro de Pesquisas Físicas, no Rio de Janeiro, em 1949, deu ensejo a um maior congraçamento no Relatório da Direção do IF-UFRGS, referente ao exercício de 1969. Pôrto Alegre, 27 de janeiro de 1953. No

  9. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    José Pereira de Lucena Departamento de Informática PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE JANEIRO - BRASIL #12;2 PUC RIO - DEPARTAMENTO Informática Pontifícia Universidade Católica do Rio de Janeiro ­ PUC-Rio Rua Marquês de São Vicente, 225

  10. 76 FR 59240 - Airworthiness Directives; Empresa Brasileira de Aeronáutica S.A. (EMBRAER) Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-26

    ...Sao Jose dos Campos-SP, CEP: 12227-901--PO Box: 36/2, Brasil; telephone...at the FAA, Small Airplane Directorate, 901 Locust, Kansas City, Missouri 64106...Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City,...

  11. Comportamento espectral de fitofisionomias do Cerrado e desenvolvimento de ndices utilizando bandas sintticas derivadas de Modelos Lineares de Mistura Espectral

    E-print Network

    Hammerton, James

    , Brasil sano@cpac.embrapa.br Abstract. The Cerrado biome covers more than two million km² in the central region of Brazil. It is the second largest biome in this country, presenting rich biodiversity. Remote. This paper analyzes the behavior of vegetation cover in the Cerrado biome through the Landsat5/TM spectral

  12. A RESPONSABILIDADE DAS INSTITUIÇÕES DE ENSINO SUPERIOR PÚBLICAS COM RELAÇÃO À EXCLUSÃO SOCIAL: UMA REFLEXÃO SOBRE A RESERVA DE COTAS PARA A MATRÍCULA DE INDIVÍDUOS AFRO-DESCENDENTES

    Microsoft Academic Search

    Flávia Pimentel

    Resumo O presente artigo trata de questões relevantes no que tange à reserva de cotas para os indivíduos afro-descendentes nas universidades públicas do Brasil. Esse tipo de reserva não deixa de ser louvável pelo lado da boa-fé. Entretanto, numa sociedade miscigenada, como é a brasileira, qual a forma de estabelecer quem é e quem não é negro? Será que o

  13. Beatrice P. Ferreira Departamento de Oceanografia

    E-print Network

    -Pernambuco CEP 50.739-540, Brasil Population structure of the leopard coralgrouper, Plectropomus leopardus to investigate the effects of a 3--4 year closure on the size, age, and sex structure of leopard coral- grouper. This suggests that for the leopard coralgrouper, sex change results from a combination of developmental

  14. Aplicação de técnicas de Processamento Digital de Imagens para a caracterização do padrão dos lineamentos frágeis na região de Santana do Acaraú - CE

    Microsoft Academic Search

    Julio Alexandre Almeida de Carvalho; Fernando César; Alves da Silva

    This work focused the brittle deformation of a siliciclastic body (sandstone with conglomeration) outcropping near Santana do Acaraú city (Ceará-state, Brasil), and it basement (mainly gneissic rocks). By using Landsat images the lineaments were identified and classified according to their directions. A terrain digital model was built and stressed the information of the faults controlling the geometry of the siliciclastic

  15. A CONSTRUÇÃO DO DESPERDÍCIO: MEDINDO A EFICIÊNCIA DE PROGRAMAS MUNICIPAIS DE HABITAÇÃO E URBANISMO

    Microsoft Academic Search

    Arthur Leandro; Alves da Silva

    1. INTRODUÇÃO O processo de descentralização de políticas sociais no Brasil, em curso desde os anos 80, enfatizou o poder municipal como alternativa para a consecução da eficiência econômica e eqüidade social. Na prática, isto significou o encolhimento do planejamento central e a fragmentação da ação pública local, posto que o raciocínio foi expandido mesmo para aquelas políticas nas quais

  16. ARTEMISININ DERIVATIVES WITH ANTIMALARIAL ACTIVITY AGAISNT PLASMODIUM falciparum DESIGNED WITH AID OF

    E-print Network

    Ferreira, Márcia M. C.

    that are effective in the clinical treatment of the falciparum malaria, we have the Artemisinin or Quinghosu. Ferreira (PQ) DFQ, IQ, UNICAMP 13081-970 Campinas, SP, Brasil Malaria has been known since the earliest and was originally extracted of the herb Artemisia annua L. or Qing hao used for the treatment of 52 kinds

  17. Dinámica económica en el estado de São Paulo: los desdoblamientos de un eje de desarrollo

    Microsoft Academic Search

    Marcos Kazuo Matushima; Eliseu Savério Sposito

    2007-01-01

    Este artículo tiene como objetivo principal, demostrar y analizar la dimensión territorial de las transformaciones económicas en el Estado de São Paulo, Brasil. Inicialmente, se muestra, a partir de la bibliografía básica, como el concepto de desarrollo puede ser entendido por indicadores, como el proceso de industrialización, el papel de los ferrocarriles, el rol de los inmigrantes y los resultados

  18. Modeling the Impact of Tuberculosis Control Strategies in Highly Endemic Overcrowded Prisons

    E-print Network

    Modeling the Impact of Tuberculosis Control Strategies in Highly Endemic Overcrowded Prisons Judith, Fundac¸a~o Oswaldo Cruz, Rio de Janeiro, Brasil Abstract Background: Tuberculosis (TB) in prisons (2008) Modeling the Impact of Tuberculosis Control Strategies in Highly Endemic Overcrowded Prisons. PLo

  19. Monitoring water level in large trans-boundary ungauged basins with altimetry: the example of ENVISAT over the Amazon basin

    Microsoft Academic Search

    Frederique Seyler; Stephane Calmant; Joecila da Silva; Naziano Filizola; Emmanuel Roux; Gerard Cochonneau; Philippe Vauchel; Marie-Paule Bonnet

    2009-01-01

    Brasil and Bolivia have water plans projects on the Beni-Madeira river, a major tributary of the Amazon. There are four main tributaries to the Rio Madeira: the Guapore, the Mamore and the Beni rivers into the Bolivian territory, and the Madre de Dios River crossing the North of Bolivia, coming from Peru. Most parts of these rivers are very far

  20. LES APPORTS EN EAU DE l'AMAZONE L'OCAN ATLANTIQUE JACQUES CALLDE, Retrait IRD(ORSTOM), QE15, conj. S, casa 51, GUARA

    E-print Network

    , conj. S, casa 51, GUARA II, CEP 71050-191 Brasília (Distrito Federal), Brasil, cld@apis.com.br GERARD il a écrit Vingt mille lieus sous les mers (1869) et Le Chancellor (1875). Des mesures de salinité

  1. Qualidade de vida: consideraes sobre os indicadores e instrumentos de medida Quality of life: consideration of indicators and measurement instruments

    E-print Network

    Boyer, Edmond

    Qualidade de vida: considerações sobre os indicadores e instrumentos de medida Quality of life ­ Brasil evertonando@hotmail.com Resumo Os instrumentos de medida são desenvolvidos para as mais diversas importantes que permeiam a utilização dos instrumentos de medida e apresentar de forma sistematizada os

  2. Algoritmo Genético para determinação de relevância de sintomas no diagnóstico de Cardiopatia Isquêmica

    Microsoft Academic Search

    Sandro Moretti Almeida; Lourdes Brasil; Edilson Ferneda; Hervaldo Carvalho

    2007-01-01

    This paper describes the GAC-BRASIL model, which proposes a Genetic Algorithm (GA) to determine the relevance of case's characteristics in Case-Based Reasoning (CBR) systems. It will present results of a case study where this model had been successfully used to create a GA to help medical experts to define symptoms weight for diagnosing Ischemic Cardiopathy cases. Resumo. Este artigo descreve

  3. DESARROLLO TECNOLÓGICO Y PARTICIPACIÓN COMUNITARIA: FORTALEZAS ANTE LA PREVISTA CRISIS DEL AGUA

    Microsoft Academic Search

    Carlos Barrios Napurí

    2007-01-01

    El sistema condominial de agua potable y alcantarillado sanitario es una tecnología sanitaria apropiada para la expansión y la renovación de las instalaciones sanitarias urbanas. Se está introduciendo en Lima, Perú luego de haberse desarrollado en Brasil y aplicado en Bolivia, pero con mucho mayor incidencia en la participación comunitaria. La participación tiene en esta ciudad, como antecedentes, el haberse

  4. Geometry Textures Rodrigo de Toledo

    E-print Network

    Paris-Sud XI, Université de

    Geometry Textures Rodrigo de Toledo Tecgraf ­ PUC-Rio Rio de Janeiro - RJ, Brasil rtoledo but applied to the whole object. Tessel- lated models are converted into geometry textures, a geo- metric with LOD speed-up while preserving original quality. 1 Introduction The goal of geometry textures

  5. 2/13/2014 Moinhos de vento anexados ao celular recarregam bateria -EXAME.com http://exame.abril.com.br/tecnologia/noticias/cientistas-criam-moinhos-de-vento-que-recarregam-bateria 1/4

    E-print Network

    Chiao, Jung-Chih

    .com.br/tecnologia/noticias/cientistas-criam-moinhos-de-vento-que-recarregam-bateria 1/4 Assine Loja Mercados Economia Brasil Mundo Tecnologia Marketing Carreira Seu Dinheiro PME Estilo Notícias | iPhone | i: Ciência Ah, o passado Como 8 fenômenos atuais da tecnologia seriam no passado Rede social Facebook

  6. NOVAS TECNOLOGIAS NO TRANSPORTE RODOVIÁRIO DE MADEIRA

    Microsoft Academic Search

    Fernando Seixas

    RESUMO O transporte de madeira no Brasil é feito principalmente através do modo rodoviário, sendo responsável, na maior parte das vezes, pela maior parcela dos custos da madeira posto fábrica. Trata-se de um setor que atualmente sofre pressão de aumento de custos em virtude da instalação de postos de pedágios nas rodovias, fiscalização mais rigorosa com relação à \\

  7. CURSO DE PS-GRADUAO EM ENGENHARIA E TECNOLOGIA ESPACIAIS

    E-print Network

    CURSO DE PÓS-GRADUAÇÃO EM ENGENHARIA E TECNOLOGIA ESPACIAIS ÁREA DE CONCENTRAÇÃO EM ENGENHARIA E, ITA, Brasil, 1990 #12;2 CURSO DE PÓS-GRADUAÇÃO EM ENGENHARIA E TECNOLOGIA ESPACIAIS ÁREA DE Doutorado CSE-200-4 Introdução à Tecnologia de Satélites CSE-201-4 Introdução à Engenharia de Sistemas

  8. Biocombustibles como estrategia de desarrollo: ¿rumbo hacia la sustentabilidad o hacia una nueva periferia?

    Microsoft Academic Search

    Priscila G Steffen

    2008-01-01

    Resumen: Los autores se preguntan por el aporte real de los biocombustibles a la solución de los problemas ambientales. Después de analizar las actuales formas de producción en Brasil, sostienen que la expansión de éstos presionará indirectamente hacia la deforestación, contribuyendo así aún más al calentamiento global. Señalan lo falaz del discurso que justifica la expansión de los biocombustibles por

  9. Biomass burning losses of carbon estimated from ecosystem modeling and satellite data analysis for the Brazilian Amazon region

    Microsoft Academic Search

    Christopher Potter; Vanessa Brooks Genovese; Steven Klooster; Matthew Bobo; Alicia Torregrosa

    2001-01-01

    To produce a new daily record of gross carbon emissions from biomass burning events and post-burning decomposition fluxes in the states of the Brazilian Legal Amazon (Instituto Brasileiro de Geografia e Estatistica (IBGE), 1991. Anuario Estatistico do Brasil, Vol. 51. Rio de Janeiro, Brazil pp. 1–1024). We have used vegetation greenness estimates from satellite images as inputs to a terrestrial

  10. ION GPS-99/Nashville/September 14--17, 1999 1 Testing of a Multi-Reference GPS Station

    E-print Network

    Calgary, University of

    Cannon, Geomatics Engineering, University of Calgary Guy Marceau, Sam Ryan, Sun Wee, Canadian Coast Guard a M.Sc. degree in Computer Science applied to Geomatics and is currently a Ph.D. student ­ Brasília/Brasil. Dr. Gérard Lachapelle is Professor and Head of the Department of Geomatics Engineering

  11. Differential gene expression for isozymes in somatic mutants of Vitis vinifera L. (Vitaceae)

    Microsoft Academic Search

    Sandra Aparecida de Oliveira Collet; Marcos André Collet; Maria de Fátima P. S. Machado

    2005-01-01

    Isozyme electrophoresis was used as a method to provide a measure of relationship among Italia, Rubi, Benitaka, and Brasil cv of Vitis vinifera traditionally grown in Marialva, a town in the northwestern region of the state of Paraná, southern Brazil. No allelic variation was observed for esterase (EST), malate dehydrogenase (MDH), peroxidase (POD), glutamate dehydrogenase (GTDH), alkaline phosphatase (AKP), acid

  12. Biogeosciences, 6, 22972312, 2009 www.biogeosciences.net/6/2297/2009/

    E-print Network

    Katul, Gabriel

    Department of Land, Air, and Water Resources, University of California, Davis, USA 17Department of Physics, P, UK 2Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, Manaus, Brasil 13Department of Geography, Queen's University, Canada 14Forest Service and Agency

  13. VARIAÇÃO ESPACIAL LONGITUDINAL E TEMPORAL DA QUALIDADE DA ÁGUA DO CÓRREGO BONITO, PERÍODO 2001 A 2006

    Microsoft Academic Search

    Luiz Mário Ferreira; Rodrigo Lima

    RESUMO --- O município de Bonito, MS, possui uma das mais belas paisagens de águas cristalinas do Brasil, atraindo turistas do mundo inteiro para contemplar essa beleza natural. Porém, estas paisagens estão sendo ameaçadas devido a falta de consciência dos próprios moradores que lançam seus efluentes domésticos diretamente nos corpos d'água degradando-os. Juntamente com isto, existe o problema da gestão

  14. Unsupervised Learning of Verb Argument Structures Thiago Alexandre Salgueiro Pardo1, Daniel Marcu2

    E-print Network

    Marcu, Daniel

    ­ ICMC-USP, 13.560-970 São Carlos, SP, Brasil http://www.nilc.icmc.usp.br 2 Information Sciences of usage that are not present in this manually developed seman- tic resource. 1 Introduction Inspired parsing, several efforts have recently focused on the creation of semantically annotated resources

  15. Vita - Department of Mathematics, Purdue University

    E-print Network

    J. Douglas, Jr., P. M. Blair, and R. J. Wagner, Calculation of linear water ood behavior including. the e ects ..... displacement in porous media, Mathematical Modeling in Water Resources, Vol. .... de Janeiro, Brasil, August 20{24, 1995, 417{419.

  16. Solar energy scenarios in Brazil, Part one: Resource assessment

    Microsoft Academic Search

    F. R. Martins; E. B. Pereira; S. A. B. Silva; S. L. Abreu; Sergio Colle

    2008-01-01

    The “Solar and Wind Energy Resource Assessment” (SWERA) project was an international project financed by GEF\\/UNEP, which aimed at providing a consistent and accessible database to foster the insertion of renewable energies on the energy matrix of developing countries. This paper presents the solar energy resource assessment generated during the SWERA project by using the radiative transfer model BRASIL-SR fed

  17. Feeding habits of the Guiana dolphin, Sotalia guianensis (Cetacea: Delphinidae), in Norte Bay,

    E-print Network

    Simões-Lopes, Paulo César

    in the water column. Our results support the opportunistic feeding habit of the Guiana dolphin, since its diverse diet was clearly guided by the availability and accessibility of resources in its habitat del delfín costero, Sotalia guianenSiS (Cetacea: Delphinidae), en la bahía Norte al sur de Brasil

  18. List of Participants for the Second ELCIRC/SELFE User Group Meeting Charleston, SC

    E-print Network

    Portugal afortunato@lnec.pt Junji Matsumoto Surface Water Resources Division Texas Water Development Board Pothina Surface Water Resources Division Texas Water Development Board 1700 North Congress Ave. P.O. Box Laboratory of Civil Engineering Estuaries and Coastal Zones Division Av. do Brasil, 101, 1700-066 Lisbon

  19. Finite Element Model for Wave Propagation Near Shore Based on Extended Boussinesq Equations.

    E-print Network

    Walkley, Mark

    Engineering Av. do Brasil 101, 1700-066 Lisboa PORTUGAL lpinheiro@lnec.pt, jfortes@lnec.pt http. Their validity range extends from shallow up to intermediate water depths where the nonlinear and dispersive the applicability domain of these equations to deep as well as to very shallow waters and also to include other

  20. publications were not related to taxonomy, and these professionals had other duties such as teaching and super-

    E-print Network

    Davis, Mark A.

    Biological Resources Study, Australian Biological Resources Study, Canberra 4 Marques, A.C. and Lamas, C.J.E. (2006) Taxonomia zoolo´gica no Brasil: estado da arte, expectativas e sugesto~es de ac¸o~es futuras. Pap large increases in disturbance and changes to the global nitrogen and water cycles [1]. Effects

  1. International 21 -23 September 2011

    E-print Network

    Doran, Simon J.

    Resource Management) programme. Deadline for Abstracts April 30, 2011 Organised by: Centro de Pesquisas de Estado de São Paulo Universidade de São Paulo Cidade Universitária São Paulo,SP,Brasil #12 abstracts on the following topics: · Water availability from the GAS for different uses: operation

  2. AVALIAÇÃO DAS DEMANDAS E OFERTAS HÍDRICAS NA BACIA DO RIO SÃO FRANCISCO USANDO MODELO DE REDE DE FLUXO

    Microsoft Academic Search

    Alan Vaz Lopes; Marcos Airton de Sousa Freitas

    RESUMO: Estima-se, atualmente, que existam no Brasil cerca de três milhões de hectares irrigados e algo em torno de 355.000 hectares de área irrigada na bacia do rio São Francisco. Sendo a irrigação considerada um uso consuntivo, grande parte da água empregada fica indisponível para a produção de energia e demais usos. O abastecimento humano, a dessedentação animal e o

  3. EBSCO Information Services Contedos de qualidade Ferramentas de gerenciamento Integrao

    E-print Network

    EBSCO Information Services ·Conteúdos de qualidade ·Ferramentas de gerenciamento ·Integração Página hesite em nos contatar: EBSCO Brasil Ltda Ana Carolina Nogueira (21) 2224-0190 anogueira@ebsco.com.br #12;

  4. EBSCO Information Services Contedos de qualidade Ferramentas de gerenciamento Integrao

    E-print Network

    EBSCO Information Services ·Conteúdos de qualidade ·Ferramentas de gerenciamento ·Integração Página serviço de alerta. #12;Obrigado! Caso tenha alguma dúvida, por favor não hesite em nos contatar: EBSCO Brasil Ltda Ana Carolina Nogueira (21) 2224-0190 anogueira@ebsco.com.br #12;

  5. LIMITAÇÕES LOGÍSTICAS PARA EXPORTAÇÃO: O CASO DOS PRODUTOS LÁCTEOS BRASILEIROS

    Microsoft Academic Search

    Adriano Abreu Rezende; Antonio Carlos dos Santos

    2008-01-01

    O propósito desta pesquisa é avaliar a estrutura do agribusiness do leite no Brasil, identificando as principais limitações logísticas para exportação. Especificamente pretende identificar as principais empresas exportadoras de produtos lácteos, os produtos mais exportados e os países de destino; relatar as maneiras mais freqüentes de inserção dos produtos no mercado externo; e mencionar as estruturas físicas utilizadas pelas empresas

  6. OS AEROPORTOS DE VIRACOPOS E DE SÃO JOSÉ DOS CAMPOS E AS ESTRATÉGIAS EMPRESARIAIS NO MERCADO MUNDIAL1

    Microsoft Academic Search

    JOSMAR CAPPA

    Resumo: neste artigo procurou-se compreender a logística dos aeroportos de Viracopos e de São José dos Campos como parte das estratégias de concorrência das grandes empresas no Brasil que atuam no mercado mundial. Enfatizou-se que os aeroportos cargueiros influenciam o desenvolvimento nacional e regional e são influenciados pela dinâmica econômica dos municípios onde estão localizados, pois o transporte aéreo de

  7. AMERICA DEL NORD Coordinatore Paesi Partner Dipartimento

    E-print Network

    Di Pillo, Gianni

    Grazia Stati Uniti; Dip. SCIENZE STATISTICHE 11 GIACOMELLO Alessandro Stati Uniti; Dip. MEDICINA-DESIGN, TECNOLOGIA DELL'ARCHITETTURA,TERRITORIO E AMBIENTE 14 DE ROSA Anna Maria Silvana Brasile; Dip. PSICOLOGIA DEI Delia Argentina; Dip. CHIMICA 21 GIOFRE' Francesca Paraguay; Dip. DATA-DESIGN, TECNOLOGIA DELL

  8. Curiosidades Meio Ambiente

    E-print Network

    Barbosa, Marcia C. B.

    Pauling, professor catedrático de Química e Física do Instituto de Tecnologia da Califórnia, nos Estados Prêmio Nobel: Ada Yonath (Química) e Elizabeth Blackburn (Medicina). (Com informações da Agência Brasil e

  9. Sr isotopic evidence for ion-exchange buffering in tropical laterites from the Paraná, Brazil

    Microsoft Academic Search

    C. Innocent; A. Michard; N. Malengreau; M. Loubet; Y. Noack; M. Benedetti; B. Hamelin

    1997-01-01

    Sr isotopes have been measured in laterite sequences and in associated waters from the region of Ribeirão Prêto (Paraná basin, Brasil), in order to characterize the water-rock interactions corresponding to the successive stages of weathering of these continental flood basalts. We analyzed detailed sections of concentric rims of alteration in ball-shaped spheroids developed around cores of fresh basalts. Waters were

  10. The impact of rise of the Andes and Amazon landscape evolution on diversification of lowland terra-firme forest birds

    NASA Astrophysics Data System (ADS)

    Aleixo, A.; Wilkinson, M. J.

    2011-12-01

    Since the 19th Century, the unmatched biological diversity of Amazonia has stimulated a diverse set of hypotheses accounting for patterns of species diversity and distribution in mega-diverse tropical environments. Unfortunately, the evidence supporting particular hypotheses to date is at best described as ambiguous, and no generalizations have emerged yet, mostly due to the lack of comprehensive comparative phylogeographic studies with thorough trans-Amazonian sampling of lineages. Here we report on spatial and temporal patterns of diversification estimated from mitochondrial gene trees for 31 lineages of birds associated with upland terra-firme forest, the dominant habitat in modern lowland Amazonia. The results confirm the pervasive role of Amazonian rivers as primary barriers separating sister lineages of birds, and a protracted spatio-temporal pattern of diversification, with a gradual reduction of earlier (1st and 2nd) and older (> 2 mya) splits associated with each lineage in an eastward direction (the easternmost tributaries of the Amazon, the Xingu and Tocantins Rivers, are not associated with any splits older than > 2 mya). This "younging-eastward" pattern may have an abiotic explanation related to landscape evolution. Triggered by a new pulse of Andean uplift, it has been proposed that modern Amazon basin landscapes may have evolved successively eastward, away from the mountain chain, starting ~10 mya. This process was likely based on the deposition of vast fluvial sediment masses, known as megafans, which apparently extended in series progressively eastward from Andean sources. The effects on drainage patterns are apparent from the location of axial rivers such as the Negro / Orinoco and Madeira which lie at the distal ends of major megafan ramparts at cratonic margins furthest from the Andes. Megafan extension plausibly explains the progressive extinction of the original Pebas wetland of west-central Amazonia by the present fluvial landsurfaces where upland terra-firme forest develop. The youngest landsurfaces thus appear to lie furthest from the mountains. In this scenario major drainages were also reoriented in wholesale fashion from a northward (Caribbean) outlet to a generally eastward, Atlantic Ocean outlet. More importantly, other major river courses in western-central Amazonia will have been established at progressively younger dates with distance eastward. The bird DNA data appears to confirm the role of Amazonian rivers as primary diversification barriers, and thus probably as promoters of bird speciation. We show for the first time that a general spatio-temporal pattern of diversification for terra-firme lineages in the Amazon is associated with rivers of apparently different ages ("younging-eastward"), and furthermore parallels a specific scenario of regional drainage evolution.

  11. Behavioral and environmental influences on fishing rewards and the outcomes of alternative management scenarios for large tropical rivers.

    PubMed

    Hallwass, Gustavo; Lopes, Priscila F M; Juras, Anastácio A; Silvano, Renato A M

    2013-10-15

    Identifying the factors that influence the amount of fish caught, and thus the fishers' income, is important for proposing or improving management plans. Some of these factors influencing fishing rewards may be related to fishers' behavior, which is driven by economic motivations. Therefore, those management rules that have less of an impact on fishers' income could achieve better acceptance and compliance from fishers. We analyzed the relative influence of environmental and socioeconomic factors on fish catches (biomass) in fishing communities of a large tropical river. We then used the results from this analysis to propose alternative management scenarios in which we predicted potential fishers' compliance (high, moderate and low) based on the extent to which management proposals would affect fish catches and fishers' income. We used a General Linear Model (GLM) to analyze the influence of environmental (fishing community, season and habitat) and socioeconomic factors (number of fishers in the crew, time spent fishing, fishing gear used, type of canoe, distance traveled to fishing grounds) on fish catches (dependent variable) in 572 fishing trips by small-scale fishers in the Lower Tocantins River, Brazilian Amazon. According to the GLM, all factors together accounted for 43% of the variation in the biomass of the fish that were caught. The behaviors of fishers' that are linked to fishing effort, such as time spent fishing (42% of the total explained by GLM), distance traveled to the fishing ground (12%) and number of fishers (10%), were all positively related to the biomass of fish caught and could explain most of the variation on it. The environmental factor of the fishing habitat accounted for 10% of the variation in fish caught. These results, when applied to management scenarios, indicated that some combinations of the management measures, such as selected lakes as no-take areas, restrictions on the use of gillnets (especially during the high-water season) and individual quotas larger than fishers' usual catches, would most likely have less impact on fishers' income. The proposed scenarios help to identify feasible management options, which could promote the conservation of fish, potentially achieving higher fishers' compliance. PMID:23764509

  12. Biblioteca Virtual de Salud Enfermería Regional: Trayectoria de Construcción, Fuentes de Información, Estrategias y Próximos Pasos.

    PubMed Central

    Lana, Francisco C. F.; Malvárez, Silvina

    2012-01-01

    Resumen La BVS Enfermeria constituye un nuevo paradigma en enfermería una vez que o modelo representa una expansión de la cooperación técnica y ha como objetivos centrales promover la ampliación del acceso la información sobre enfermería la través del acceso universal equitativo y construir un patrimonio informacional en enfermería, ayudando la mejorar la formación y práctica de enfermería a actuar con compromiso ético-social en el área de educación, investigación y atención a la salud. Como resultado del proceso de sensibilización, verifica-se la construcción de Bibliotecas Virtuales de Enfermería en varios países (Brasil, Argentina, Bolívia y Uruguay). La expectativa es que las BVS’s nacionais convergen a un gran portal que se está construyendo en una colaboración con BIREME/OPS/OMS, de la Asesoría Regional de Enfermería de la OPS-Washington y de Ministerio de Salud del Brasil, así como instituciones líderes en la producción del conocimiento en enfermería Iberoamérica. PMID:24199093

  13. Anlise de padres e processos de ocupao para a construo de modelos na Amaznia: Experimentos em Rondnia

    E-print Network

    Camara, Gilberto

    Análise de padrões e processos de ocupação para a construção de modelos na Amazônia: Experimentos Caixa Postal 515 - 12201-970 - São José dos Campos - SP, Brasil {isabel, anapaula, miguel, gilberto a região. Os procedimentos envolveram uma fase de diagnóstico com laboratório, campo e integração de dados

  14. Cloud-to-ground lightning and Mesoscale Convective Systems

    Microsoft Academic Search

    Enrique V. Mattos; Luiz A. T. Machado

    2011-01-01

    This work analyzes some physical and microphysical properties of Mesoscale Convective Systems (MCSs) and cloud-to-ground lightning. Satellite data from the GOES-10 infrared and NOAA-18 and TRMM microwave channels and lightning information from the Brazilian lightning detection network (BrasilDAT) were utilized for the period from 2007 to 2009. Based on an automatic MCSs detection method, 720 MCSs life cycles were identified

  15. Comparative ecology of the thrashers, Toxostoma, of South Texas

    E-print Network

    Fischer, David Herman

    1979-01-01

    total vegetative cover of 298. 8Z, essentially like HACK; however, the component species differed somewhat (Table 1). Hackberry was again the dominant tree species, but elm and anacua were virtually absent. La Coma, {Bumelia celastrina) was abundant... (Melia azedarach) La Coma (Bumelia celastrina) M bib y (M ~b Subtotal Shrubs Beebush (Eysenhartia texensis) Blackbrush acacia (Acacia rigidula) Cl'(Zhml fg Brasil (Condalia hookeri) gp y ~At p' ) Hog plum (Colubrine texensis) Torchwood (~Am ris...

  16. Phytochemical and antiprotozoal activity of Ocotea lancifolia.

    PubMed

    Fournet, Alain; Ferreira, Maria Elena; Rojas de Arias, Antonieta; Guy, Isabelle; Guinaudeau, Hélène; Heinzen, Horacio

    2007-07-01

    Thirteen known isoquinoline alkaloids were isolated from Ocotea lancifolia, popularly known as < canela pilosa > in Brasil and < laurel né > by the Guarani people which means smell laurel. Their activities against the promastigote forms of three Leishmania strains and the bloodstream form of Trypanosoma cruzi were evaluated, as well as their hepatocytotoxicity. Among them, the noraporphine alkaloid (-) caaverine has shown the most interesting antiprotozoal activity against Leishmania and T. cruzi parasites. PMID:17499454

  17. Porto Alegre, 23 de outubro de 2014.

    E-print Network

    Barbosa, Marcia C. B.

    contratar recursos humanos via CLT não é novidade. Nas décadas de 70 e 80 o governo, via projeto Finep Universidade Federal do Rio Grande do Sul (IF UFRGS). Temos mais de cinquenta anos de história com contratações incompatíveis com o pleito do Brasil em ter Universidades de Classe Mundial. A USP e a Unicamp, percebendo este

  18. Breve panorama del teatro en Ecuador durante los años 80

    E-print Network

    Almeida Naveda, Eduardo

    1992-04-01

    forma regular su actividad durante los años setenta, algunos como el Teatro Ensayo, en Quito, han desaparecido. Otros han sido creados y luchan por establecerse y por sostener una acción continua. Durante los ochenta se continuó la labor de amplia..., en la cual resaltaron sus cualidades de expresión corporal y mímica. Este montaje obtuvo buena acogida en festivales de Colombia, Uruguay y Brasil. También durante 1986 se presentó El inmigrante dirigido e interpretado por Carlos Michelena, actor...

  19. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS BIOLGICAS

    E-print Network

    Floeter, Sergio Ricardo

    Meio Ambiente NO DE HORAS-AULA SEMANAIS TE�RICAS PRÁTICAS TOTAL DE HORAS-AULA SEMESTRAIS 02 36 I.1 Neves III. PR�-REQUISITO (S) 2300 horas-aula C�DIGO NOME DA DISCIPLINA 1. IV CURSO (S) PARA O QUAL/09 ­ (LDT): A empresa "verde" no Brasil: mudança ou apropriação ideológica?/ Água virtual (veja site na

  20. Bu informaInformativo mensal do Sistema de Bibliotecas da Universidade Federal de Santa Catarina n 10 -dez/12 a mar/13 www.portalbu.ufsc.br Novas Aquisies

    E-print Network

    Floeter, Sergio Ricardo

    , chamados de "Guardiões das Tábuas" e "Mestres dos Livros". No século VII a.C., o rei da Assíria en América Latina y el Caribe), o Brasil é o país latino que mais empresta livros de bibliotecas. Em 2012, 26% dos livros lidos pelos brasileiros vieram de bibliotecas. No México, em segundo lugar, foram

  1. UM METODO DE OCULTAMENTO DE ERROS EM TRANSMISS~AO DE Ana Luisa de Araujo Santos

    E-print Network

    de Queiroz, Ricardo L.

    UNIVERSIDADE FEDERAL DO RIO DE JANEIRO COMO PARTE DOS REQUISITOS NECESS´ARIOS PARA A OBTENC¸ ~AO DO GRAU DE Mattoso Maia, Ph.D. RIO DE JANEIRO, RJ - BRASIL MARC¸O DE 2006 #12;SANTOS, ANA LU´ISA DE ARAUJO Um M´etodo de Ocultamento de Erros em Transmiss~ao de V´ideo [Rio de Janeiro] 2006 X, 91 p. 29,7 cm (COPPE

  2. ISSN 0103-9741 Monografia em Cincia da Computao

    E-print Network

    Endler, Markus

    DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE JANEIRO #12;Monografias em , Vânia M.P. Vidal2 José A. F. de Macêdo2 1 Department of Informatics ­ PUC-Rio ­ Rio de Janeiro, RJ-900 Rio de Janeiro RJ Brasil Tel. +55 21 3527-1516 Fax: +55 21 3527-1530 E-mail: bib-di@inf.puc-rio.br Web

  3. Curso de Clculo de Uma Varivel x 4 (-1) n n!

    E-print Network

    Cabral, Marco

    Universidade Federal do Rio de Janeiro Departamento de Matemática Aplicada Instituto de Matemática Universidade Federal do Rio de Janeiro Rio de Janeiro - Brasil Cópias são autorizadas e bem vindas: divulgue nosso Variável / Marco Cabral - Rio de Janeiro: Instituto de Matemática, 2010. 1. Cálculo I. Título CDD: 512

  4. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22453-900 RIO DE Departamento de Informática Rua Marquês de São Vicente, 225 - Gávea 22453-900 Rio de Janeiro RJ Brasil Tel. +55-learning * Claudia Hazan claudinha@inf.puc-rio.br Hugo Fuks hugo@inf.puc-rio.br Carlos José Pereira de Lucena lucena@inf.puc-rio

  5. Instituto de Matematica Universidade Federal do Rio de Janeiro

    E-print Network

    Cabral, Marco

    Instituto de Matem´atica Universidade Federal do Rio de Janeiro curso de an´alise real Cassio Neri´atica Universidade Federal do Rio de Janeiro Rio de Janeiro - Brasil C´opias s~ao autorizadas e bem vindas: divulgue - Rio de Janeiro. 163p. Inclui Bibliografia ISBN: 85-906720-0-X ISBN: 978-85-906720-0-5 1. An´alise Real

  6. Curso de Calculo de Uma Variavel

    E-print Network

    Cabral, Marco

    Instituto de Matemática Universidade Federal do Rio de Janeiro Departamento de Matemática Aplicada Instituto de Matemática Universidade Federal do Rio de Janeiro Rio de Janeiro - Brasil Cópias são autorizadas e. Curso de Cálculo de Uma Variável / Marco Cabral - Rio de Janeiro: Instituto de Matemática, 2010. 1

  7. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO RUA MARQUÊS DE SÃO VICENTE, 225 - CEP 22451-900 RIO DE Universidade Católica do Rio de Janeiro {sazevedo, mnetto, acosta, bborsato, lucena}@inf.puc-rio.br, fazevedo@ele.inf.puc-rio-900 Rio de Janeiro RJ Brasil Tel. +55 21 3527-1516 Fax: +55 21 3527-1530 E-mail: bib-di@inf.puc-rio.br Web

  8. Chrestenson,H. Mathematics

    E-print Network

    Cabral, Marco

    Instituto de Matemática Universidade Federal do Rio de Janeiro Departamento de Matemática Aplicada Instituto de Matemática Universidade Federal do Rio de Janeiro Rio de Janeiro - Brasil Cópias são autorizadas e. Ficha Catalográ#28;ca Cabral, Marco A. P. Curso de Cálculo de Uma Variável / Marco Cabral - Rio de

  9. Lembranías da Companhia dramática Nacional

    E-print Network

    Calvet, Aldo

    1984-04-01

    SPRING 1984 81 Lembranças da Companhia Dramática Nacional Aldo Cal vet Em junho do corrente ano fez 30 anos que se realizou no Rio de Janeiro, então capital da República, uma iniciativa oficial meritoria a cargo do Serviço Nacional de Teatro do... Ministerio da Educação e Cultura. Pela primeira vez na historia do teatro do Brasil foi posto em atividade um organismo de inteira responsabilidade do Governo com a finalidade precípua de recrutar elementos nos diversos segmentos das artes cénicas e levar...

  10. UFSC do Sculo XXI Segundo ano de gesto

    E-print Network

    Floeter, Sergio Ricardo

    Assuntos Estudantis (PRAE) Yara Maria Rauh Müller Pró-Reitoria de Ensino de Graduação (PREG) Maria Lucia de David Ferreira Lima - Bairro Trindade - Florianópolis - Santa Catarina - Brasil - CEP 88040-970 Fone sediada ao campus Reitor João David Ferreira Lima no bairro da Trindade, em Florianópolis, e agora pas- sa

  11. 3 de julho de 2012 2013 UNIVERSIDADE FEDERAL DE SANTA CATARINA.

    E-print Network

    Floeter, Sergio Ricardo

    . Campus Universitário João David Ferreira Lima ­ Trindade. Florianópolis ­ Santa Catarina ­ Brasil. CEP-Reitor de Administração Bel. Antônio Carlos Montezuma Brito Pró-Reitora Adjunta de Administração Bel. Lucia. Denise Cord Pró-Reitora Adjunta de Assuntos Estudantis Prof. a Lucia Helena Correa Lenzi (até 21

  12. Caracterização das instalações avícolas na Mesorregião do Agreste Paraibano

    Microsoft Academic Search

    Dermeval A. Furtado; Ilda F. F. Tinoco; José W. B. do Nascimento; Antonio F. Leal; Marluce A. Azevedo

    2005-01-01

    RESUMO: Nos últimos anos, as instalações destinadas à produção avícola no Brasil têm-se destacado pelo aumento da densidade de criação que visa a otimizar mão-de-obra, equipamentos, transporte, assistência técnica e, sobretudo, instalações. O objetivo deste trabalho foi realizar pesquisa sobre as principais características tipológicas dos aviários existentes na mesorregião do Agreste do Estado da Paraíba. Observou-se que os aviários são

  13. Effects of an induced drought on soil carbon dioxide (CO2) efflux and soil CO2 production in an Eastern

    E-print Network

    Saleska, Scott

    in an Eastern Amazonian rainforest, Brazil E L E N E I D E D O F F S O T TA *, E D Z O V E L D K A M P *, L U I, Coordenacao de Ciencias da Terra e Ecologia. TerraFirme, Av. Perimetral 1901, CEP 66077530, Bele´m, PA, Brazil 66075900, Belem, PA, Brasil Abstract In the next few decades, climate of the Amazon basin is expected

  14. Anais do VIII SIBGRAPI (1995) 281-286 Visualizao Volumtrica com Otimizaes de Ray Casting e Deteco de Bordas

    E-print Network

    de Figueiredo, Luiz Henrique

    Anais do VIII SIBGRAPI (1995) 281-286 Visualização Volumétrica com Otimizações de Ray Casting e Científica Rua Lauro Müller, 455, 22290­160 Rio de Janeiro, RJ, Brasil tron@lncc.br Abstract. Ray Casting to the ray casting algorithm for previewing volume data. We also propose a simple classification technique

  15. Trace element determination in warm-climate plants by Atomic Absorption Spectroscopy and Ion Selective Electrodes

    Microsoft Academic Search

    M. N. Rashed

    1995-01-01

    Minor and trace elements of biological interest in some warm climate plants cultivated at Aswan (Egypt) were analysed to demonstrate their element metabolism, animal nutrition, toxicological effect and their uses as therapeutic plants. The seven plants studied wereMacroptilium atropurpureum,Pennisetum glaucum,Cyamopsis tetragonolobus,Dolichos purpureus,Cajanus cajan8 (Variety 78\\/237 A-Brasil),Cajanus cajan13 (Variety 79\\/450 Uganda) andProsopis juliflora. Silver, gold, cadmium, cobalt, copper, iron, potassium, manganese,

  16. Pedagogia e a formação de professores(as) de Educação Infantil

    Microsoft Academic Search

    Tizuko Morchida Kishimoto

    2005-01-01

    * Resumo: O texto analisa o Curso de Pedagogia e a formaÁªo do professor(a) de EducaÁªo Infantil, tendo como base 12 cursos de Pedagogia da rede privada no Brasil. Questiona, ‡ luz dos recentes estudos sobre a profissionalizaÁªo no campo da formaÁªo de professor, a falta de especificidade da formaÁªo docente, pela adoÁªo de perfis hÌbridos; com a formaÁªo conjugada

  17. Arquitetura Artes Plsticas

    E-print Network

    Barbosa, Marcia C. B.

    Odontologia Poesia / Literatura Saúde Sociedade Teatro Tecnologia Top Agregadores 3 SeguirSeguir @siteesteta Linus Pauling, professor catedrático de Química e Física do Instituto de Tecnologia da Califórnia, nos (Medicina). Paula Laboissière - Agência Brasil 0 Anúncios Google Premio Pesquisa Professor Física ONU Luiz

  18. Realizacao domestica e escolar de foto e video 3D

    E-print Network

    Jose J. Lunazzi

    2012-12-19

    English: Industry does not give attention to the small domestic or professional market of digital technologies for 3D images. What was done on the XX century by using photographic film is not know available to the common people, though the facilities are even better. Some technique developed in Brasil twenty years ago and the use of conventional domestic photo or video cameras allows fot making pictures and films at home by using digital conversions for editing, and two-color goggles. The anaglyphic technique, the same NASA employs to show Mars images to the public, is not employed in Brazil yet. We must analize the reasons for that. Portugues: A industria nao tem dado atencao ao mercado domestico ou profissional de pequena escala nas novas tecnologias digitais para imagem 3D. O que foi feito ao longo do seculo XX usando filme fotografico nao esta hoje ao alcance das pessoas, sendo que a facilidade de uso e muito maior. Tecnicas desenvolvidas no Brasil ha mais de vinte anos, e o uso de simples cameras convencionais de fotografia e video permitem realizar fotos e filmes caseiros por meio de conversoes digitais na edicao e o uso de oculos bicolor. A tecnica anagifica, a mesma que a NASA usa para mostrar ao publico as imagens de Marte, por exemplo, nao teve espaco no Brasil ainda. Devemos analisar os motivos que podem estar influenciando e os caminhos para mudar isso.

  19. The Impact of Rise of the Andes and Amazon Landscape Evolution on Diversification of Lowland terra-firme Forest Birds

    NASA Technical Reports Server (NTRS)

    Aleixo, Alexandre; Wilkinson, M. Justin

    2011-01-01

    Since the 19th Century, the unmatched biological diversity of Amazonia has stimulated a diverse set of hypotheses accounting for patterns of species diversity and distribution in mega-diverse tropical environments. Unfortunately, the evidence supporting particular hypotheses to date is at best described as ambiguous, and no generalizations have emerged yet, mostly due to the lack of comprehensive comparative phylogeographic studies with thorough trans-Amazonian sampling of lineages. Here we report on spatial and temporal patterns of diversification estimated from mitochondrial gene trees for 31 lineages of birds associated with upland terra-firme forest, the dominant habitat in modern lowland Amazonia. The results confirm the pervasive role of Amazonian rivers as primary barriers separating sister lineages of birds, and a protracted spatio-temporal pattern of diversification, with a gradual reduction of earlier (1st and 2nd) and older (> 2 mya) splits associated with each lineage in an eastward direction. (The easternmost tributaries of the Amazon, the Xingu and Tocantins Rivers, are not associated with any splits older than > 2 mya). For the suboscine passerines, maximum-likelihood estimates of rates of diversification point to an overall constant rate over the past 5 my (up to a significant downturn at 300,000 y ago). This "younging-eastward" pattern may have an abiotic explanation related to landscape evolution. Triggered by a new pulse of Andean uplift, it has been proposed that modern Amazon basin landscapes may have evolved successively eastward, away from the mountain chain, starting approximately 10 mya. This process was likely based on the deposition of vast fluvial sediment masses, known as megafans, that may have extended progressively and in series eastward from Andean sources. This process plausibly explains the progressive extinction of original Pebas wetland of western-central Amazonia by the present fluvial landsurfaces of a more terra-firme type. The youngest landsurfaces thus lie furthest from the mountains. In this scenario major drainages were also reoriented in wholesale fashion away from a northerly orientation generally towards the east and an Atlantic Ocean outlet. The advance of megafans is best seen by the location of axial rivers such as the Orinoco and Mamore which lie against the cratonic margins furthest from the Andes, at the distal ends of major megafan ramparts. More importantly, other major river courses in western-central Amazonia will have been established at progressively younger dates with distance eastward. If this landscape-sequence scenario is accurate, it parallels the progressive younging of the passerine lineages. The bird DNA data appears to confirm strongly the pervasive role of Amazonian rivers--as primary barriers separating sister lineages of birds, and thus probably as facilitaters of bird speciation. We show for the first time that a general spatio-temporal pattern of diversification for terra-firme lineages in the Amazon is associated with rivers ("younging-eastward"), and furthermore parallels a specific scenario of regional drainage evolution.

  20. Agro-climatic zoning of Jatropha curcas as a subside for crop planning and implementation in Brazil

    NASA Astrophysics Data System (ADS)

    Yamada, Eliane S. M.; Sentelhas, Paulo C.

    2014-04-01

    As jatropha (Jatropha curcas L.) is a recent crop in Brazil, the studies for defining its suitability for different regions are not yet available, even considering the promises about this plant as of high potential for marginal zones where poor soils and dry climate occur. Based on that, the present study had as objective to characterize the climatic conditions of jatropha's center of origin in Central America for establishing its climatic requirements and to develop the agro-climatic zoning for this crop for some Brazilian regions where, according to the literature, it would be suitable. For classifying the climatic conditions of the jatropha's center of origin, climate data from 123 weather stations located in Mexico (93) and in Guatemala (30) were used. These data were input for Thornthwaite and Mather's climatological water balance for determining the annual water deficiency (WD) and water surplus (WS) of each location, considering a soil water-holding capacity (SWHC) of 100 mm. Mean annual temperature (T m), WD, and WS data were organized in histograms for defining the limits of suitability for jatropha cultivation. The results showed that the suitable range of T m for jatropha cultivation is between 23 and 27 °C. T m between 15 and 22.9 °C and between 27.1 and 28 °C were classified as marginal by thermal deficiency and excess, respectively. T m below 15 °C and above 28 °C were considered as unsuitable for jatropha cultivation, respectively, by risk of frosts and physiological disturbs. For WD, suitability for rain-fed jatropha cultivation was considered when its value is below 360 mm, while between 361 and 720 mm is considered as marginal and over 720 mm unsuitable. The same order of suitability was also defined for WS, with the following limits: suitable for WS up to 1,200 mm; marginal for WS between 1,201 and 2,400 mm, and unsuitable for WS above 2,400 mm. For the crop zoning, the criteria previously defined were applied to 1,814 climate stations in the following Brazilian regions: Northeast (NE) region and the states of Goiás (GO), Tocantins (TO), and Minas Gerais (MG). The suitability maps were generated by crossing the crop climate requirements with the interpolated climate conditions of the selected regions. The maps showed that only 22.65 % of the areas in the NE region are suitable for jatropha as a rain-fed crop. The other areas of the region are classified as marginal (62.61 %) and unsuitable (14.74 %). In the states of GO and TO, the majority of the areas (47.78 %) is classified as suitable, and in the state of MG, 33.92 % of the territory has suitability for the crop. These results prove that jatropha cannot be cultivated everywhere and will require, as any other crop, minimum climatic conditions to have sustainable performance and high yields.

  1. Low-rhenium molybdenite by metamorphism in northern Sweden: Recognition, genesis, and global implications

    NASA Astrophysics Data System (ADS)

    Stein, Holly J.

    2006-04-01

    Re-Os dating of molybdenite is an accurate means to date intrusions and intrusion-related ore deposits using the model age or isochron approach. But, molybdenite has a new niche in the greenschist- to granulite-facies metamorphic environment. Re-Os ages for metamorphic molybdenite may be used to construct regional metamorphic histories. Age significance and accuracy are established by analyzing multiple molybdenite separates extracted from single, petrographically-characterized molybdenite occurrences. In this study, twelve geologically distinct molybdenite-bearing samples from two small Mo districts in northern Sweden trace a 150 m.y. Paleoproterozoic Svecofennian metamorphic history from ˜1900 to 1750 Ma. These data reveal a little-known, widespread and protracted, Late Svecofennian anatexis in northern Sweden. The Kåtaberget Mo-(Cu, F) deposit is located in the Moskosel granite batholith north of the economically-renown Skellefte district. Four different molybdenite samples from outcrop at Kåtaberget indicate an intrusion age of 1895 ± 6 Ma with the formation of later pegmatite-aplite at 1875 ± 6 Ma. The Allebuoda (Björntjärn) and Munka Mo-(W) deposits in the Rappen district are represented by three outcrop and five drill core samples of molybdenite-bearing aplite-pegmatite-granite. These two deposits were previously described as intrusion-related Climax-type Mo mineralization. Re-Os ages for molybdenites from these deposits range from 1865 to 1750 Ma and, significantly, Re concentrations are markedly low, extending to the sub-ppm level. Age agreement within the deposits is conspicuously lacking, whereas, with one exception, age agreement within any single sample (geologic occurrence), as established by analysis of additional molybdenite separates, is very good. These data, together with fundamental geologic observations discussed in this paper, suggest that Mo-(W) mineralization in northern Sweden is not intrusion-related, but the local product of episodic melting of Archean-Paleoproterozoic supracrustal gneisses related to the Svecofennian orogeny. Petrographic traverses across the boundary between widespread, foliation-parallel units of aplitic to pegmatitic pink granite and hosting biotite gneiss directly capture the process of ore formation. Dehydration breakdown of zircon-rich biotite aligned with the foliation in the gneiss is accompanied by formation of new pristine, post-deformational biotite plus sulfides, oxides, hydrothermal zircon and fluorite, all associated with microcline-dominant leucosomes. This process has profound implication for the traditional leucogranite, intrusion-related genesis attributed to the broad classification of Mo-W-Sn-base and precious metal mineralization (e.g., South Mountain Batholith, Nova Scotia; Okiep, Namaqualand, South Africa; Mactung, Yukon; Pogo-Liese, Tintina, Alaska; Carajás and Goiás-Rio Tocantins, Brazil; New England Batholith, NSW, Australia; Bergslagen, Sweden; Nevoria, Western Australia; Alpeinerscharte, Austria; Erzgebirge, Germany; Sardinia-Corsica Batholith). In addition to biotite, metallogenic contributions (e.g., Mo, W, Sn, U, Bi, Cu, Pb, Zn, Fe, Ni, Co, Au, Ag, Te, As, Sb, REE) in various combinations may also be controlled by breakdown of amphibole. In effect, the trace element composition of dehydrating or recrystallizing components in a gneissic rock essentially defines the local and district metallogenic suite. In the absence of focusing structures (e.g., shear zones, sheeted vein development), this process will generally form small and disconnected subeconomic deposits with erratic and unpredictable grades. Low Re content in associated molybdenite is a key indicator for a subeconomic origin by local melting of biotite gneiss (Mo-W) or muscovite schist (Sn-W).

  2. Lower Permian stems as fluvial paleocurrent indicators of the Parnaíba Basin, northern Brazil

    NASA Astrophysics Data System (ADS)

    Capretz, Robson Louiz; Rohn, Rosemarie

    2013-08-01

    A comprehensive biostratinomic study was carried out with abundant stems from the Lower Permian Motuca Formation of the intracratonic Parnaíba Basin, central-north Brazil. The fossils represent a rare tropical to subtropical paleofloristic record in north Gondwana. Tree ferns dominate the assemblages (mainly Tietea, secondarily Psaronius), followed by gymnosperms, sphenophytes, other ferns and rare lycophytes. They are silica-permineralized, commonly reach 4 m length (exceptionally more than 10 m), lie loosely on the ground or are embedded in the original sandstone or siltstone matrix, and attract particular attention because of their frequent parallel attitudes. Many tree fern stems present the original straight cylindrical to slightly conical forms, other are somewhat flattened, and the gymnosperm stems are usually more irregular. Measurements of stem orientations and dimensions were made in three sites approximately aligned in a W-E direction in a distance of 27.3 km at the conservation unit "Tocantins Fossil Trees Natural Monument". In the eastern site, rose diagrams for 54 stems indicate a relatively narrow azimuthal range to SE. These stems commonly present attached basal bulbous root mantles and thin cylindrical sandstone envelopes, which sometimes hold, almost adjacent to the lateral stem surface, permineralized fern pinnae and other small plant fragments. In the more central site, 82 measured stems are preferentially oriented in the SW-NE direction, the proportion of gymnosperms is higher and cross-stratification sets of sandstones indicate paleocurrents mainly to NE and secondarily to SE. In the western site, most of the 42 measured stems lie in E-W positions. The predominantly sandy succession, where the fossil stems are best represented, evidences a braided fluvial system under semiarid conditions. The low plant diversity, some xeromorphic features and the supposedly almost syndepositional silica impregnation of the plants are coherent with marked dry seasons. Thick mudstones and some coquinites below and above the sandy interval may represent lacustrine facies formed in probably more humid conditions. The taphonomic history of the preserved plants began with exceptional storms that caused fast-flowing high water in channels and far into the floodplains. In the eastern site region, many tree ferns only fell, thus sometimes covering and protecting plant litter and leaves from further fragmentation. Assemblages of the central and western sites suggest that the trees were uprooted and transported in suspension (floating) parallel to the flow. Heavier ends of stems (according to their form or because of attached basal bulbous root mantle or large apical fronds) were oriented to upstream because of inertial forces. During falling water stage, the stems were stranded on riverbanks, usually maintaining the previous transport orientation, and were slightly buried. The perpendicular or oblique positions of some stems may have been caused by interference with other stems or shallow bars. Rare observed stems were apparently waterlogged before the final depositional process and transported as bedload. The differences of interpreted channel orientations between the three sites are expected in a braided fluvial system, considering the very low gradients of the basin and the work scale in the order of tens of kilometers. The mean direction of the drainage probably was to east and the flows apparently became weaker downstream. This study seems to provide reliable data for paleocurrent interpretations, especially considering areas with scarce preserved sedimentary structures.

  3. The evolution of organic matter along the lower Amazon River continuum - Óbidos to the ocean

    NASA Astrophysics Data System (ADS)

    Ward, N. D.; Keil, R. G.; Medeiros, P. M.; Brito, D.; Cunha, A.; Sawakuchi, H. O.; Moura, J. S.; Yager, P. L.; Krusche, A. V.; Richey, J. E.

    2013-12-01

    The influence of the Amazon River on global hydrologic and biogeochemical cycling is well recognized. The Amazon River provides roughly 16% of the global freshwater supply to the ocean and is a significant source of CO2 to the atmosphere, outgassing 0.5 Pg C y-1 to the atmosphere--a flux roughly equivalent to the amount of carbon 'sequestered' by the Amazon rainforest (Field et al, 1998; Richey et al., 2002; Malhi et al., 2008). However, much of our understanding of the flux of matter from the Amazon River into the Atlantic Ocean (and atmosphere) is limited to measurements made at and upstream of Óbidos, 900 km upstream from the actual river mouth. Further, there are few to no observations documenting the transformation of organic matter in a parcel of water as it travels downstream of Óbidos into the ocean. Here we explore the hydrological and biogeochemical evolution of the lower Amazon River continuum, from Óbidos to the Atlantic Ocean. A suite of dissolved and particulate organic matter (OM) parameters were measured during a series of five river expeditions with stations at Óbidos, the Tapajós tributary, the mouth of the Lago Grande de Curuai floodplain lake, both the north and south channels of the Amazon River mouth near Macapá, and the confluence of the Amazon and Tocantins Rivers near Belém. In addition to bulk carbon isotopic signatures, a suite of biomarkers including dissolved and particulate lignin-derived phenols were measured to trace the sources and degradation history of terrestrial vascular plant derived OM throughout the continuum. Dissolved and particulate lignin phenol concentrations both correlated positively with river discharge in the Amazon River mainstem, with variable export patterns from the tributaries and floodplains. As organic matter travels along the continuum it is degraded by microbial composition, fuelling gross respiration and CO2 outgassing. The flux of organic carbon to the ocean is chemically recalcitrant as a result of the constant biological processing of labile OM throughout the lower river. We estimate that 40% of the vascular plant-derived organic carbon sequestered by the terrestrial biosphere is degraded within soils, 55% is degraded along the river continuum, and less than 5% is delivered to the ocean (Ward et al., 2013) References Cited Field, C., M. Behrenfeld, J. Randerson, and P. Falkowski. 1998. Primary production of the biosphere: Integrating terrestrial and oceanic components. Science 281, 237-240. Malhi, Y., Roberts, J.T., Betts, R.A., Killeen, T.J., Li, W., Nobre, C.A. 2008. Climate change, deforestation, and the fate of the Amazon. Science 319, 169-172. Richey, J. E., Melack, J. M., Aufdenkampe, A. K., Ballester, V. M. & Hess, L. L. 2002. Outgassing from Amazonian rivers and wetlands as a large tropical source of atmospheric CO2. Nature 416, 617-620. Ward, N.D.; Keil, R.G.; Medeiros, P.M.; Brito, D.C.; Cunha, A.C.; Dittmar, T.; Yager, P.L.; Krusche, A.V.; Richey, J.E. 2013. Degradation of terrestrially derived macromolecules in the Amazon River. Nature Geoscience. doi: 10.1038/ngeo1817

  4. Short-term Ensemble Flood Forecasting Experiments in Brazil

    NASA Astrophysics Data System (ADS)

    Collischonn, Walter; Meller, Adalberto; Fan, Fernando; Moreira, Demerval; Dias, Pedro; Buarque, Diogo; Bravo, Juan

    2013-04-01

    Flood Forecasting and issuing early warnings to communities under risk can help reduce the impacts of those events. However, to be effective, warnings should be given several hours in advance. The best solution to extend the lead time is possibly the use of rainfall-runoff models with input given by rainfall and streamflow observations and by forecasts of future precipitation derived from numerical weather prediction (NWP) models. Recent studies showed that probabilistic or ensemble flood forecasts produced using ensemble precipitation forecasts as input data outperform deterministic flood forecasts in several cases in Europe and the United States, and ensemble flood forecasting systems are increasingly becoming operational in these regions. In Brazil, on the other hand, operational flood warning systems are rare, and often based on simpli?ed river routing or linear transfer function models. However, a large number of global and regional meteorological models is operationally run covering most of the country, and forecasts of those models are available for recent years. We used this available data to conduct experiments of short term ensemble flood forecasting in the Paraopeba River basin (12 thousand km2), located in Southeastern Brazil. Streamflow forecasts were produced using the MGB-IPH hydrological model, using a simple empirical state updating method and using an ensemble of precipitation forecasts generated by several models, with different initial conditions and parameterizations, from several weather forecasting centers. A single deterministic streamflow forecast, based on a quantitative precipitation forecast derived from the optimal combination of several outputs of NWP models was used as a reference to assess the performance of the ensemble streamflow forecasts. Flood forecasts experiments were performed for three rainy seasons (austral summer) between 2008-2011. The results for predictions of dichotomous events, which mean exceeding or not flood warning thresholds, showed that the upper quantiles of the ensemble (e.g. 80th and 90th quantiles) over performed the deterministic forecast and even the ensemble mean. In most cases we observed an increase in the proportion of correctly forecasted events while keeping false alarm rates at low levels. This benefit was generally higher for higher flow thresholds and for longer lead times, which are the most important situations for flood impact mitigation. In parallel with the ensemble forecasts studies, a forecasting system platform fully coupled to a GIS tool (Mapwindow GIS) is being developed, which facilitates the system operation and interpretation of results. Currently, this system is being tested, however using only deterministic precipitation forecasts, in two large scale river basins in Brazil: the São Francisco River upstream of Pirapora (60 thousand km2) and the Tocantins River (300 thousand km2). Results obtained in the Paraopeba River are now motivating the incorporation of NWP ensemble outputs in these systems to make probabilistic predictions.

  5. Agro-climatic zoning of Jatropha curcas as a subside for crop planning and implementation in Brazil.

    PubMed

    Yamada, Eliane S M; Sentelhas, Paulo C

    2014-11-01

    As jatropha (Jatropha curcas L.) is a recent crop in Brazil, the studies for defining its suitability for different regions are not yet available, even considering the promises about this plant as of high potential for marginal zones where poor soils and dry climate occur. Based on that, the present study had as objective to characterize the climatic conditions of jatropha's center of origin in Central America for establishing its climatic requirements and to develop the agro-climatic zoning for this crop for some Brazilian regions where, according to the literature, it would be suitable. For classifying the climatic conditions of the jatropha's center of origin, climate data from 123 weather stations located in Mexico (93) and in Guatemala (30) were used. These data were input for Thornthwaite and Mather's climatological water balance for determining the annual water deficiency (WD) and water surplus (WS) of each location, considering a soil water-holding capacity (SWHC) of 100 mm. Mean annual temperature (T m), WD, and WS data were organized in histograms for defining the limits of suitability for jatropha cultivation. The results showed that the suitable range of T m for jatropha cultivation is between 23 and 27 °C. T m between 15 and 22.9 °C and between 27.1 and 28 °C were classified as marginal by thermal deficiency and excess, respectively. T m below 15 °C and above 28 °C were considered as unsuitable for jatropha cultivation, respectively, by risk of frosts and physiological disturbs. For WD, suitability for rain-fed jatropha cultivation was considered when its value is below 360 mm, while between 361 and 720 mm is considered as marginal and over 720 mm unsuitable. The same order of suitability was also defined for WS, with the following limits: suitable for WS up to 1,200 mm; marginal for WS between 1,201 and 2,400 mm, and unsuitable for WS above 2,400 mm. For the crop zoning, the criteria previously defined were applied to 1,814 climate stations in the following Brazilian regions: Northeast (NE) region and the states of Goiás (GO), Tocantins (TO), and Minas Gerais (MG). The suitability maps were generated by crossing the crop climate requirements with the interpolated climate conditions of the selected regions. The maps showed that only 22.65% of the areas in the NE region are suitable for jatropha as a rain-fed crop. The other areas of the region are classified as marginal (62.61%) and unsuitable (14.74%). In the states of GO and TO, the majority of the areas (47.78%) is classified as suitable, and in the state of MG, 33.92% of the territory has suitability for the crop. These results prove that jatropha cannot be cultivated everywhere and will require, as any other crop, minimum climatic conditions to have sustainable performance and high yields. PMID:24691855

  6. Biomass burning aerosol over the Amazon during SAMBBA: impact of chemical composition on radiative properties

    NASA Astrophysics Data System (ADS)

    Morgan, William; Allan, James; Flynn, Michael; Darbyshire, Eoghan; Hodgson, Amy; Liu, Dantong; O'shea, Sebastian; Bauguitte, Stephane; Szpek, Kate; Langridge, Justin; Johnson, Ben; Haywood, Jim; Longo, Karla; Artaxo, Paulo; Coe, Hugh

    2014-05-01

    Biomass burning represents one of the largest sources of particulate matter to the atmosphere, resulting in a significant perturbation to the Earth's radiative balance coupled with serious impacts on public health. Globally, biomass burning aerosols are thought to exert a small warming effect but with the uncertainty being 4 times greater than the central estimate. On regional scales, the impact is substantially greater, particularly in areas such as the Amazon Basin where large, intense and frequent burning occurs on an annual basis for several months. Absorption by atmospheric aerosols is underestimated by models over South America, which points to significant uncertainties relating to Black Carbon (BC) aerosol properties. Initial results from the South American Biomass Burning Analysis (SAMBBA) field experiment, which took place during September and October 2012 over Brazil on-board the UK Facility for Airborne Atmospheric Measurement (FAAM) BAe-146 research aircraft, are presented here. Aerosol chemical composition was measured by an Aerodyne Aerosol Mass Spectrometer (AMS) and a DMT Single Particle Soot Photometer (SP2). The physical, chemical and optical properties of the aerosols across the region will be characterized in order to establish the impact of biomass burning on regional air quality, weather and climate. The aircraft sampled a range of conditions including sampling of pristine Rainforest, fresh biomass burning plumes, regional haze and elevated biomass burning layers within the free troposphere. The aircraft sampled biomass burning aerosol across the southern Amazon in the states of Rondonia and Mato Grosso, as well as in a Cerrado (Savannah-like) region in Tocantins state. This presented a range of fire conditions, both in terms of their number, intensity, vegetation-type and their combustion efficiencies. Near-source sampling of fires in Rainforest environments suggested that smouldering combustion dominated, while flaming combustion dominated in the Cerrado. This led to significant differences in aerosol chemical composition, particularly in terms of the BC content, with BC being enhanced in the Cerrado region compared with the Rainforest environment. This was reflected in the single scattering albedo of the regional smoke haze, with values of 0.9 observed in the Rainforest environments compared with a value of 0.8 in the Cerrado region. This contrast results in a net cooling and warming respectively in terms of the aerosol direct radiative effect. BC-containing particles were found to be rapidly coated in the near-field, while the organic aerosol component was observed to oxidise rapidly upon advection and dilution downwind of major smoke plumes. Significant differences in the coating thickness of the BC-containing particles were observed when comparing the Rainforest and Cerrado environments. Such properties have important implications for the life cycle and formation of particulate material, as well as their optical and radiative properties. The results presented enhance our knowledge of biomass burning aerosol in a sensitive region of the globe, where relatively few measurement campaigns have taken place previously.

  7. Evolution of biomass burning aerosol over the Amazon: airborne measurements of aerosol chemical composition, microphysical properties, mixing state and optical properties during SAMBBA

    NASA Astrophysics Data System (ADS)

    Morgan, W.; Allan, J. D.; Flynn, M.; Darbyshire, E.; Hodgson, A.; Liu, D.; O'Shea, S.; Bauguitte, S.; Szpek, K.; Johnson, B.; Haywood, J.; Longo, K.; Artaxo, P.; Coe, H.

    2013-12-01

    Biomass burning represents one of the largest sources of particulate matter to the atmosphere, resulting in a significant perturbation to the Earth's radiative balance coupled with serious impacts on public health. On regional scales, the impacts are substantial, particularly in areas such as the Amazon Basin where large, intense and frequent burning occurs on an annual basis for several months. Absorption by atmospheric aerosols is underestimated by models over South America, which points to significant uncertainties relating to Black Carbon (BC) aerosol properties. Initial results from the South American Biomass Burning Analysis (SAMBBA) field experiment, which took place during September and October 2012 over Brazil on-board the UK Facility for Airborne Atmospheric Measurement (FAAM) BAe-146 research aircraft, are presented here. Aerosol chemical composition was measured by an Aerodyne Aerosol Mass Spectrometer (AMS) and a DMT Single Particle Soot Photometer (SP2). The physical, chemical and optical properties of the aerosols across the region will be characterized in order to establish the impact of biomass burning on regional air quality, weather and climate. The aircraft sampled a range of conditions including sampling of pristine Rainforest, fresh biomass burning plumes, regional haze and elevated biomass burning layers within the free troposphere. The aircraft sampled biomass burning aerosol across the southern Amazon in the states of Rondonia and Mato Grosso, as well as in a Cerrado (Savannah-like) region in Tocantins state. This presented a range of fire conditions, in terms of their number, intensity, vegetation-type and their combustion efficiencies. Near-source sampling of fires in Rainforest environments suggested that smouldering combustion dominated, while flaming combustion dominated in the Cerrado. This led to significant differences in aerosol chemical composition, particularly in terms of the BC content, with BC being enhanced in the Cerrado region compared with the Rainforest environment. This was reflected in the single scattering albedo of the regional smoke haze, with values of 0.9 observed in the Rainforest environments compared with a value of 0.8 in the Cerrado region. This contrast results in a net cooling and warming respectively in terms of the aerosol direct radiative effect. BC-containing particles were found to be rapidly coated in the near-field, with little evidence for additional coating upon advection and dilution. This is consistent with organic aerosol mass being approximately constant when accounting for dilution both close to source and on the regional scale. However, the bulk organic aerosol composition became increasingly oxidised with distance from source. Such properties have important implications for the life cycle and formation of particulate material, which governs its subsequent impacts. Biomass burning layers were observed aloft in the free troposphere, which has potential implications for atmospheric stability profiles and cloud formation. The results presented enhance our knowledge of biomass burning aerosol in a sensitive region of the globe, where relatively few measurement campaigns have taken place previously.

  8. A Web-based planning support tool for sediment management in a meso-scale river basin in Western Central Brazil.

    PubMed

    Lorz, C; Neumann, C; Bakker, F; Pietzsch, K; Weiß, H; Makeschin, F

    2013-09-01

    In scope of an IWRM concept for the Federal District, Western Central Brazil we developed a planning support tool, which enables non-experts to test the effects of land-use and land-cover change (LULCC) on landscape processes and landscape functions (LPF) related to sediment generation and retention. For this purpose we developed the web-based tool Letsmap do Brasil. The tool has two principal layers. The upper layer contains information on land use and its effect on LPF, i.e. sediment retention, runoff control, nitrogen loss control and agronomic value. The parameterized relation between land use and LPF is the core of the whole system. For each LPF a value specific to land use has been assigned. A second layer contains information on landscape properties and potentials (LPP), e.g. potential for sediment input in river networks and runoff potential. By linking land use and LPPs the system provides a spatially explicit assessment of effects of LULCC on landscape processes and functions (LPF). Letsmap do Brasil might have two major purposes. (1) It will support decision-making in river basin management and sediment management. By creating their own land-use/cover pattern non-expert users are enabled to test effects of LULCC on LPFs. (2) It will support and train non-experts to participate in decision processes in land-use planning. Because of its high adaptability, transparency, and simple handling Letsmap do Brasil might be used as tool in river basin management and land-use planning. PMID:23254313

  9. Supplement 11, Authors: A To Z

    E-print Network

    Segal, Dorothy B.; Doss, Mildred A.; Humphrey, Judith M.

    1961-01-01

    ?dico Cirurgica do Brasil). Rio de Janeiro. Acta Med. Costarricense.?Acta Medica Costar- ricense. Colegio de Medicos y Cirujanos. San Jose, Costa Rica. Acta Med., Madrid.?Acta Medica. Revista de In- formaci?n de Medicina y Especialidades. Madrid. Acta M... Annales Medico-Chirurgicales de l'H?pital Sainte-Justine de Montr?al. Montreal. Ann. Oto-Laryngol.?Les Annales d'Oto-Laryn- gologie. Bulletin de la Soci?t? de Laryngologie des H?pitaux de Paris. Paris. Ann. Univ. Scient. Budapest.?Annales Universi...

  10. Bacteriological study of the uterus of cows during estrus

    E-print Network

    Couto, Edalmo Souza

    1961-01-01

    & OF SCI:. NCE J'anuary, 1961 ka)or Subject: Veterinary ]Medicine and Surgery Bl ' I'"BIOLOGICAL '". TJDY O'F TIW 'I "':JD 07 CO'(P. DURING ZDTBJH A The: ia ZDALI'. 0 SO'JiA CGUTO Approved aa to style and oontent by: { Chairman of Committee... . stado de Mines Gerais (Brasil)", for making possible his stay in ths United States. Dr. Z. C. Ramge ~ Associate Professor of 0he Department of Veterinary E;edlclne and Surgery, for his guidance and supervl~ion, and the correction of the manuscript...

  11. Wheat yield estimation at the farm level using TM Landsat and agrometeorological data

    NASA Technical Reports Server (NTRS)

    Rudorff, B. F. T.; Batista, G. T.

    1991-01-01

    A model for estimating wheat yields on the farm level was developed, that integrates the Landsat TM data and agrometeorological information. Results obtained for a test site in southern Brasil for years of 1986 and 1987 show that the vegetation index derived from Landsat TM could account for the 60 to 40 percent wheat-yield variability observed between the two crop years. Compared to results using either the Landsat TM vegetation index or the agrometeorological data alone, the joint use of both types of data in a single model yielded a significant improvement.

  12. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS BIOLGICAS

    E-print Network

    Floeter, Sergio Ricardo

    processos produtivos NO DE HORAS-AULA SEMANAIS TE�RICAS PRÁTICAS TOTAL DE HORAS-AULA SEMESTRAIS 02 36 I.1): A empresa "verde" no Brasil: mudança ou apropriação ideológica?/ Água virtual (veja site na bibliografia) 22/09: Aula expositiva: "Gestão do conhecimento: a questão da pegada hídrica" 29/09 - Vídeo: Home (sala José

  13. [Triatoma delpontei Romaña & Abalos, 1947 (Hemiptera, Tratominae) in the Brazilian State of Rio Grande do Sul].

    PubMed

    Salvatella Agrelo, R; Basmadjian, Y; Rosa, R; Puime, A

    1993-01-01

    Triatoma delpontei (Romaña & Abalos, 1947) (Hemiptera, Triatominae) is an ornithophilic sylvatic with a particular association to the psittacid Myiopsitta monachus (Boaddert, 1783). It is found in the continental biogeographical province of the Chaco, where it inhabits the nests or M. monachus, in subtropical xerophytic forests. The authors report the first finding of T. delpontei in Brasil, in the "campanha" region of the State or Rio Grande do Sul (Barra do Quarai, Uruguaiana), on the right bank of the River Cuareim, not far from de Uruguayan border. PMID:8278745

  14. IAU (Maser) Symposium 287 Summary

    NASA Astrophysics Data System (ADS)

    Menten, Karl M.

    2012-07-01

    Almost exactly twenty years ago, the first of a series of conferences dedicated to cosmic masers took place in Arlington, Virginia in the USA (March 9-11, 1992). Two more followed, each on a different continent, in Mangaratiba, near Rio de Janeiro, Brasil (March 5-10, 2001) and in Alice Springs, Australia (March 12-16, 2007). As at all others, a large part of the international maser community convened from January 29 to February 3, 2012 in splendid Stellenbosch, South Africa, to discuss the state of the art of the field.

  15. Observacoes do Cometa de Halley no Continuo de 22 GHz E 44 GHz, E NA Raia Maser de Vapor de H20 EM 22.2 GHz

    NASA Astrophysics Data System (ADS)

    Abraham, Z.; Scalise, E., Jr.; Botti, L. C. L.; Cancoro, A. C. O.; Monteiro Do Vale, J. L.; del Ciampo, L. F.; Tateyama, C. E.; Vilas Boas, J. W. S.; Homor, J. L.; Kaufmann, P.

    1987-05-01

    0 cometa de Halley foi observado no contínuo nas frequencias de 22 GHz e 44 GHz no Observatório de Itapetinga, Brasil, no período Fevereiro-Abril de 1986. 0 cometa foi detetado em ambas frequ?ncias, apresentando variabilidade corn escalas de tempo de horas. Cálculos teóricos mostram que a radicão não pode ser devida a transicões livre-livre na região ionizada resultante da interacão do cometa corn 0 vento solar. A emissão seria então devida à radiacão térmica dos gráos da coma do cometa, cuja densidade também foi variável em intervalo de horas. Não foi detetada emissão maser de H2O maior que 4 Jy.

  16. Cassava, Manihot esculenta Crantz genetic resources: VI. Anatomy of a diversity center.

    PubMed

    Nassar, Nagib M A

    2003-01-01

    Central Brasil is one of the four centers of diversity of Manihot species. Of 26 wild Manihot species reported to occur in this region, 20 were collected from two limited areas, each less than 100 km in diameter. These two areas are Goiás Velho and Corumbá de Goiás. Considering the Harlan concept of geographic patterns of variation of cultivated crops, it is assumed that the two areas are microcenters of cassava diversity. Topographic, soil and ethnological data of these species were collected and compared. PMID:14966687

  17. Usina do Trabalho do Ator: um teatro canibal

    E-print Network

    Icle, Gilberto

    1999-10-01

    FALL 1999 97 Usina do Trabalho do Ator: um teatro canibal Gilberto lele O grupo Usina do Trabalho do Ator é um teatro-laboratório que vem trabalhando desde 1992, em Porto Alegre, estado do Rio Grande do Sul, no Brasil. O trabalho concentra...-se em pesquisar técnicas corpóreas e vocais de representação teatral para atores e bailarinos. A base desta técnica está na fisicalidade do ator. O trabalho fiindamenta-se nas teorias e práticas do teatro contemporâneo e na investigação de formas...

  18. Comparison of Reference Values in Whole Blood of DMDmdx/J and C57BL/6J Mice Using Neutron Activation Analysis

    NASA Astrophysics Data System (ADS)

    Metairon, S.; Zamboni, C. B.; Suzuki, M. F.; Júnior, C. R. B.; Sant'Anna, O. A.

    2011-08-01

    The Br, Ca, Cl, K, Na and S concentrations in whole blood of DMDmdx/J and C57BL/6J mice were determined using Neutron Activation Analysis technique. Reference values obtained from twenty one whole blood samples of these strains were analyzed in the IEA-R1 nuclear reactor at IPEN (São Paulo, Brasil). These data contribute for applications in veterinary medicine related to biochemistry analyses using whole blood as well as to evaluate the performance of treatments in muscular dystrophy.

  19. Population dynamics of Dichelops melacanthus (Dallas) (Heteroptera: Pentatomidae) on Host Plants.

    PubMed

    Silva, J J; Ventura, M U; Silva, F A C; Panizzi, A R

    2013-04-01

    The stink bug Dichelops melacanthus (Dallas) has become one of the major pests of corn and wheat in Brasil, mainly after a shift from the conventional tillage system to the no tillage cultivation system. This fact may be due to the simultaneous occurrence of second planting corn with wheat cultivation, and the presence of wild hosts. This study aimed to evaluate the population dynamics of D. melacanthus on wild hosts adjacent to areas cultivated with corn, wheat, and soybean during the season and off-season of soybean cultivation. Weekly surveys were conducted in the region of Londrina, PR, Brasil from the beginning of July 2007 up to the end of June 2008 using the square meter method. Corn (Zea mays), soybean (Glycine max), tropical spiderwort (Commelina benghalensis), hairy indigo (Indigofera hirsuta), crotalaria (Crotalaria pallida), wheat (Triticum aestivum), and signal grass (Brachiaria decumbens) were identified as hosts of D. melacanthus. Signal grass was the host in which stink bug adults were found in higher numbers, while nymphs and adults were consistently collected on tropical spiderwort. Although nymphs completed their development on tropical spiderwort seeds, this host was found less suitable than soybean seeds. PMID:23949747

  20. Analysis of the Applicability of an Ankle-Foot Orthosis during Gait in Poststroke Patients

    PubMed Central

    Costa, Rafael Vital; Grecco, Luanda André Collange; Neto, Hugo Pasini; Franco de Moura, Renata Calhes; Correa, João Carlos Ferrari; Corrêa, Fernanda Ishida; Oliveira, Claudia Santos

    2013-01-01

    [Purpose] The aim of this study was to develop and assess the applicability of an experimental ankle-foot orthosis during gait in patients with hemiparesis. [Subjects and Methods] This was a noncontrolled cross-sectional study. Ten adult patients with hemiparesis but who were capable of independent gait were included in the study. Gait assessment was performed using two platforms (EMG System do Brasil), an electromyograph (EMG System do Brasil), and a video camera. The experimental orthosis consisted of a single piece that fit over the foot and 1/3 of the distal tibia and had a steel spring. [Results] There was greater activation of the rectus femoris and vastus lateralis muscles in the stance and mid-stance phases with the use of the experimental ankle-foot orthosis in comparison with the use of a polypropylene ankle-foot orthosis and no orthosis. Regarding spatial and temporal gait parameters, the individuals achieved an increase in stride length with the use of the experimental ankle-foot orthosis in comparison with the use of a polypropylene ankle-foot orthosis. [Conclusion] The results of the present study demonstrate that individuals with hemiparesis achieved an improvement in the stance and mid-stance phases of gait with the use of the experimental ankle-foot orthosis. PMID:24259903

  1. Leaiid conchostracans from the uppermost Permian strata of the Paraná Basin, Brazil: Chronostratigraphic and paleobiogeographic implications

    NASA Astrophysics Data System (ADS)

    Ferreira-Oliveira, Luis Gustavo; Rohn, Rosemarie

    2010-03-01

    Conchostracan fossils are abundant and relatively diversified in the Rio do Rasto Formation (Passa Dois Group, Paraná Basin, southern Brazil), but leaiids (' Leaia pruvosti' [Reed, F.R.C., 1929. Novos Phyllopodos Fósseis do Brasil. Boletim do Serviço Geológico e Mineralógico do Brasil 34, 2-16]) were previously found at only one locality of the formation in the northern Santa Catarina State. New specimens of the Family Leaiidae, collected from two outcrops in central Paraná State near the top of the formation, stimulated a revision of related taxa. Both the new and the previously known leaiids are herein assigned to Hemicycloleaia mitchelli [Etheridge Jr., R., 1892. On Leaia mitchelli Etheridge. Proceedings of the Linnean Society of New South Wales 7, 307-310] based on the presence of three carinae and subovate shape. This species was originally recorded in the upper Tatarian (Wuchiapingian, Late Permian) of Sydney Basin, eastern Australia and therefore corroborates the interpretation that the leaiid bearing strata of the Rio do Rasto Formation cannot be younger than Permian. H. mitchelli possibly was one of the most widespread, eurytopic and conservative Late Paleozoic conchostracans of Gondwana (although records from Africa, India and Antarctica must still be confirmed) and it was also found in the Tatarian of Russia. The sudden disappearance of leaiids after their apparent success is consistent with the hypothesis about the biotic crisis around the Permo-Triassic boundary.

  2. A new heterandrous species of Solanum section Gonatotrichum Bitter (Solanaceae) from Bahia, Brazil.

    PubMed

    Giacomin, Leandro L; Stehmann, João Renato

    2011-01-01

    A new species of Solanum from Brazil is described. Solanum evolvuloides Giacomin & Stehmann, sp. nov. belongs to section Gonatotrichum, a small group assigned to the Brevantherum Clade of the genus Solanum. It resembles Solanum turneroides Chodat, sharing with it heterandry, and Solanum parcistrigosum Bitter, with which it shares a similar habit and pubescence. Despite these similarities, the species can be recognized by its ovate-elliptic to cordiform leaf shape and more membranaceous leaf texture than the other species in the section, and stem, inflorescence axes, and calyx vestiture mainly composed of glandular hairs. Solanum evolvuloides is known to occur only in southeastern of Bahia state, Brazil, and in a preliminary assessment of the IUCN criteria can be considered a threatened species.ResumoUma nova espécie de Solanum é descrita para o Brasil. Solanum evolvuloides Giacomin & Stehmann, sp. nov. é componente da seção Gonatotrichum, um pequeno grupo associado ao Clado Brevantherum. A espécie é similar a Solanum turneroides, com a qual compartilha a heterandria, e Solanum parcistrigosum, que por sua vez apresenta um hábito e indumento foliar semelhante. Apesar da similaridade, a espécie pode ser facilmente reconhecida pela forma da folha ovada-elíptica a cordiforme e pela texura mais membranácea que as outras espécies da seção, além do indumento do caule, eixo da inflorescência e cálice, constituído em sua maioria por tricomas glandulares pedicelados. Solanum evolvuloides tem sua distribuição conhecida somente para o sudeste do estado da Bahia, Brasil, e é indicada como uma espécie ameaçada de extinção. PMID:22287920

  3. A new heterandrous species of Solanum section Gonatotrichum Bitter (Solanaceae) from Bahia, Brazil

    PubMed Central

    Giacomin, Leandro L.; Stehmann, João Renato

    2011-01-01

    Abstract A new species of Solanum from Brazil is described. Solanum evolvuloides Giacomin & Stehmann, sp. nov. belongs to section Gonatotrichum, a small group assigned to the Brevantherum Clade of the genus Solanum. It resembles Solanum turneroides Chodat, sharing with it heterandry, and Solanum parcistrigosum Bitter, with which it shares a similar habit and pubescence. Despite these similarities, the species can be recognized by its ovate-elliptic to cordiform leaf shape and more membranaceous leaf texture than the other species in the section, and stem, inflorescence axes, and calyx vestiture mainly composed of glandular hairs. Solanum evolvuloides is known to occur only in southeastern of Bahia state, Brazil, and in a preliminary assessment of the IUCN criteria can be considered a threatened species. Resumo Uma nova espécie de Solanum é descrita para o Brasil. Solanum evolvuloides Giacomin & Stehmann, sp. nov. é componente da seção Gonatotrichum, um pequeno grupo associado ao Clado Brevantherum. A espécie é similar a Solanum turneroides, com a qual compartilha a heterandria, e Solanum parcistrigosum, que por sua vez apresenta um hábito e indumento foliar semelhante. Apesar da similaridade, a espécie pode ser facilmente reconhecida pela forma da folha ovada-elíptica a cordiforme e pela texura mais membranácea que as outras espécies da seção, além do indumento do caule, eixo da inflorescência e cálice, constituído em sua maioria por tricomas glandulares pedicelados. Solanum evolvuloides tem sua distribuição conhecida somente para o sudeste do estado da Bahia, Brasil, e é indicada como uma espécie ameaçada de extinção. PMID:22287920

  4. Hydropower Resource Assessment of Brazilian Streams

    SciTech Connect

    Douglas G. Hall

    2011-09-01

    The Idaho National Laboratory (INL) in collaboration with the U.S. Geological Survey (USGS) with the assistance of the Empresa de Pesquisa Energetica (EPE) and the Agencia Nacional de Energia Electrica (ANEEL) has performed a comprehensive assessment of the hydropower potential of all Brazilian natural streams. The methodology by which the assessment was performed is described. The results of the assessment are presented including an estimate of the hydropower potential for all of Brazil, and the spatial distribution of hydropower potential thus providing results on a state by state basis. The assessment results have been incorporated into a geographic information system (GIS) application for the Internet called the Virtual Hydropower Prospector do Brasil. VHP do Brasil displays potential hydropower sites on a map of Brazil in the context of topography and hydrography, existing power and transportation infrastructure, populated places and political boundaries, and land use. The features of the application, which includes tools for finding and selecting potential hydropower sites and other features and displaying their attributes, is fully described.

  5. [Characteristics, depressive symptoms, and associated factors in incarcerated women in the State of Rio Grande do Sul, Brazil].

    PubMed

    Canazaro, Daniela; Lima Argimon, Irani Iracema de

    2010-07-01

    The study's objective was to describe the socio-demographic and clinical characteristics of women inmates and verify the prevalence of depressive symptoms and hopelessness and drug and alcohol use, abuse, and addiction. The sample included 287 inmates at a Women's Penitentiary in the State of Rio Grande do Sul, Brasil. The study design was quantitative and cross-sectional. According to the findings, the typical female inmate was single, young, had at least two children, had worked in the informal market, and had low social and/or economic status and incomplete primary schooling. There was a high prevalence of depressive symptoms and drug use, abuse, and addiction, but a low prevalence of symptoms of hopelessness. Various factors, especially linked to the participants' life history, were significantly associated with depressive symptoms. PMID:20694358

  6. Development and testing of a rural credit supervision system at the level of counties and rural properties utilizing remote sensing techniqes

    NASA Technical Reports Server (NTRS)

    Batista, G. T. (principal investigator); Delima, A. M.; Tardin, A. T.; Rudorff, B. F. T.; Mendonca, F. J.; Dosanjosferreirapinto, S.; Chen, S. C.; Duarte, V.

    1984-01-01

    Remote sensing techniques for supporting the rural credit supervision system were developed and tested. The test area comprised the counties of Aracatuba and Guararapes, located in the State of Sao Paulo. Aerial photography, LANDSAT images and topographic charts were used. Aerial photographs were extremely useful for the out lining of properties boundaries with financing of sugarcane plantations by the Banco do Brasil S.A.. The percentage of correctly interpreted sugarcane on LANDSAT images, considering the 85 analyzed properties, was of 63.12%. The occurrence of atypical conditions such as excessive raining, sugarcane in bloom, and wind damaged sugarcane and sugarcane not harvested due to planning failures verified during the period the images were obtained, were some of the contributing factors associated with a low interpretation performance. An alternative approach was developed using several LANDSAT overpasses and auxiliary field data, which resulted in 91.77 percent correct.

  7. A Astronomia no Ensino Superior Brasileiro entre 1808 e 1889

    NASA Astrophysics Data System (ADS)

    Bretones, Paulo S.; Videira, Antonio A. P.

    2003-05-01

    Este artigo apresenta os principais eventos ocorridos na história do ensino de astronomia nos cursos superiores que existiram no Brasil desde a chegada da Família Real portuguesa em 1808 até o final do período monárquico. Para compor esse esboço histórico, utilizamos, principalmente, livros didáticos, regulamentos, decretos e leis responsáveis pelas organizações dos conteúdos oferecidos e das carreiras dos responsáveis pela disciplina. Na análise do material empregado, investigamos a presença de concepções filosóficas e científicas, que podem ter norteado os conteúdos disciplinares. Não realizamos nenhuma comparação com o ensino de astronomia em outros países. Concluímos mostrando que o estudo de astronomia, durante o período monárquico, foi mais direcionado para a formação d engenheiros do que astrônomos. Gostaríamos de observar que o presente artigo não tem a pretensão de abordar o assunto de maneira completa e detalhada.

  8. The Optical Depth Sensor (ODS) in the DREAMS package onboard the Exomars Entry Descent and Landing Demonstrator Module

    NASA Astrophysics Data System (ADS)

    Rannou, P.; Pommereau, J.-P.; Sarkissian, A.; Foujols, T.

    2012-09-01

    The optical depth sensor (ODS) is designed to retrieve the optical depth of the dust layer and to characterize the high altitude clouds on Mars. It was developped initially for the mission MARS 96, and also was included in the payload of several other missions. The sensor was finally built and used for a field experiment in Africa in order to validate the concept and test the performance. In this work we present main principle of the retrieval, the instrumental concept and the result of the tests performed during the 2004-2005 winter field experiment. It is now included in the package DREAM, which is part of the payload of the EDM on Mars 2016 and associated to two terrestrial campaigns, in tropical environment (Brasil) and in the arctic environment.

  9. A correlação índice espectral vs. luminosidade em QSOs e suas implicações

    NASA Astrophysics Data System (ADS)

    Garcia-Rissmann, A.

    2003-08-01

    Estudos de variabilidade de núcleos ativos já demonstraram ser comum o fato de seu contínuo óptico/UV tornar-se mais "duro" à medida que a luminosidade aumenta. Essa tendência ocorre tanto de forma individual quanto global, e pode ter implicações importantes (1) para estudos fotométricos de variabilidade conduzidos numa banda fixa no referencial do observador, comparando objetos a diferentes redshifts, e (2) no cálculo da correção K, com consequente impacto na determinação de massas de buracos negros e bojos de galáxias hospedeiras (através da relação de Magorrian). Confirmo aqui as correlações positivas entre o índice espectral e a luminosidade óptica, utilizando dados espectroscópicos de 11 QSOs monitorados no Brasil e no Chile, durante ~2 anos. O estudo é complementado com parâmetros extraídos de espectros e de dados fotométricos públicos de quasares. Destaco ainda as diferenças observadas em tais correlações para objetos do tipo radio-loud e radio-quiet. Este projeto é financiado pelo I. Milênio/CNPq.

  10. Speckle Interferometry at SOAR in 2012 and 2013

    NASA Astrophysics Data System (ADS)

    Tokovinin, Andrei; Mason, Brian D.; Hartkopf, William I.

    2014-05-01

    We report the results of speckle runs at the 4.1 m Southern Astronomical Research telescope in 2012 and 2013. A total of 586 objects were observed. We give 699 measurements of 487 resolved binaries and upper detection limits for 112 unresolved stars. Eleven pairs (including one triple) were resolved for the first time. Orbital elements have been determined for the first time for 13 pairs; orbits of another 45 binaries are revised or updated. Based on observations obtained at the Southern Astrophysical Research (SOAR) telescope, which is a joint project of the Ministério da Ciência, Tecnologia, e Inovação (MCTI) da República Federativa do Brasil, the U.S. National Optical Astronomy Observatory (NOAO), the University of North Carolina at Chapel Hill (UNC), and Michigan State University (MSU).

  11. General circulation of the South Atlantic between 5 deg N and 35 deg S

    NASA Technical Reports Server (NTRS)

    Ollitrault, Michel; Mercier, H.; Blanc, F.; Letraon, L. Y.

    1991-01-01

    The TOPEX/POSEIDON altimeter will provide the temporal mean seal level. So, secondly, we propose to compute the difference between these two surfaces (mean sea level minus general circulation dynamic topography). The result will be an estimate of the marine geoid, which is time invariant for the 5-year period under consideration. If this geoid is precise enough, it will permit a description of seasonal variability of the large-scale surface circulation. If there happens to be enough float data, it may be possible to infer the first vertical modes of this variability. Thus the main goal of our investigation is to determine the 3-D general circulation of the South Atlantic and the large-scale seasonal fluctuations. This last objective, however, may be restricted to the western part of the South Atlantic because float deployments have been scheduled only in the Brasil basin.

  12. [Redescription of Parodon caliensis and Saccodon dariensis (Characiformes: Parodontidae)].

    PubMed

    Londoño-Burbano, Alejandro; Román-Valencia, César

    2010-09-01

    Redescription of Parodon caliensis and Saccodon dariensis (Characiformes: Parodontidae). Parodontidae family is a group of Characiformes fishes distributed throughout South America and parts of Panama, except in the basins of the southern Bahia state in Brasil on the Atlantic coast, Patagonia and the Amazon river channel. The family includes three genera: Apareiodon Eigenmann 1916, Parodon Valenciennes 1849 y Saccodon Kner 1863, 28 recognized species and two valid genera: Parodon and Saccodon. Redescription of Parodon caliensis and Saccodon dariensis is carried out based on type, and topotypic material from Colombia. Significant differences were found in morphometric, meristic, osteologic and color characters. S. dariensis is widely distributed but P. caliensis is restricted to the upper Cauca River drainage. Three species are considered herein as synonyms of S. dariensis: Apareiodon dariensis, A. compressus and S. caucae. Sexual dimorphism is described for both species. PMID:20737840

  13. O que bilíngues bimodais têm a nos dizer sobre desenvolvimento bilíngue?

    PubMed Central

    de Quadros, Ronice Müller; Lillo-Martin, Diane; Pichler, Deborah Chen

    2013-01-01

    O objetivo deste trabalho é apresentar o que as pesquisas que estamos desenvolvendo com crianças ouvintes, filhas de pais surdos, adquirindo Língua Brasileira de Sinais (Libras) e Português e Língua de Sinais Americana (ASL) e Inglês (Lillo-Martin et al. 2010) têm a nos dizer sobre desenvolvimento bilíngue. Os dados deste estudo fazem parte de um banco de dados de interações espontâneas coletadas longitudinalmente, alternando contextos de aquisição da Libras e do português como língua alvo, no Brasil e dados coletados longitudinalmente. nos mesmos contextos, de crianças adquirindo ASL e inglês1. Além disso, há também dados do estudo experimental com testes aplicados nos dois pares de línguas que se agregam ao presente estudo. Uma visão geral dos estudos desenvolvidos sobre a aquisição bilíngue bimodal por crianças ouvintes, filhas de pais surdos, será apresentada e, então, serão expostos alguns aspectos linguísticos deste tipo de aquisição, considerando as discussões sobre aquisição bilíngue a partir da pesquisa realizada. PMID:24431480

  14. EL PROGRAMA CITI: UNA ALTERNATIVA PARA LA CAPACITACIÓN EN ÉTICA DE LA INVESTIGACIÓN EN AMÉRICA LATINA

    PubMed Central

    Litewka, Sergio; Goodman, Kenneth; Braunschweiger, y Paul

    2011-01-01

    El Programa CITI (Collaborative Institutional Training Initiative) es un curso basado en Internet y desarrollado por voluntarios, que brinda material educacional sobre protección de sujetos humanos en investigaciones biomédicas y de conducta, buenas prácticas clínicas, conducta responsable de la investigación y trato humanitario a animales de laboratorio. Es un esfuerzo conjunto del Fred Hutchinson Cancer Research Center y la Universidad de Miami. Con la colaboración de expertos locales, gran parte del contenido se ha adaptado para América Latina, se ha traducido al español y portugués y se han establecido acuerdos de colaboración con instituciones especializadas en bioética en Chile, Brasil, Costa Rica y Perú. Los autores presentan una metodología accesible para la capacitación en ética de la investigación y una justificación de su uso y difusión en América Latina PMID:21687817

  15. Nutritional status of children under 5 years of age in the Brazilian Western Amazon before and after the Interoceanic highway paving: a population-based study

    PubMed Central

    2013-01-01

    Background The aim of this study was to analyse the prevalence of undernutrition, overweight and associated factors, before and after the implementation of the Interoceanic Highway. Methods A population-based cross-sectional study on children under 5 years of age was conducted in the municipality of Assis Brasil, AC, Brazil, in 2003 and 2010. Prevalence of undernutrition was observed by using height-for-age Z-scores (HAZ) and adopting a cut-off point equal to or lower than a -2 Z-score. Overweight prevalence was defined by a cut-off point equal to or greater than a +2 Z-score of the WHZ index. Z-scores were calculated relative to WHO 2006 reference data. Semi-structured questionnaires were applied to the children’s guardians, investigating family socio-economic and demographic characteristics, morbidities, access to services and child care. Associated factors were identified by hierarchical multiple logistic regression analysis. Results The prevalence of low HAZ (undernutrition) was 7.0% in 2003 and 12.2% in 2010. The prevalence of high WHZ (overweight) was 1.0% and 6.6% for 2003 and 2010, respectively. It was not possible to adjust the multiple model for the year 2003. The factors associated with low HAZ in 2010 were: wealth index, the situation of living with biological parents, maternal height and presence of open sewage, whereas the factors associated with a high WHZ in the same year were: child’s age, mother’s time of residence in the location, mother’s body mass index. Conclusions Overweight increase within this undernutrition scenario reveals that the process of nutritional transition began in this Amazonian city only in the last decade, and therefore, it is delayed when compared to overweight in other parts of Brazil. Such nutritional transition in Assis Brasil may have been facilitated by the construction of the Interoceanic Highway. PMID:24283293

  16. A proposed contents astronomy for basic education

    NASA Astrophysics Data System (ADS)

    Albrecht, E.; Voelzke, M. R.

    2014-08-01

    A Astronomia é um tema que sempre exerceu fascínio sobre as pessoas de um modo geral. Conhecer e estudar o que há nos “céus”, além de nossos olhos, continua sendo instigador e de grande interesse. Baseado nestas justificativas desenvolveu-se uma pesquisa de Doutorado, na qual, o objetivo principal foi investigar sobre a presença dos conteúdos de Astronomia nas Propostas Curriculares da região Sul do Brasil, a saber, os estados de Paraná, Rio Grande do Sul e Santa Catarina e, posterior comparação com os Parâmetros Curriculares Nacionais (PCN) que trazem propostas de conteúdos para toda a Educação Básica brasileira. Tal investigação pautou-se na abordagem de caráter qualitativo e utilizouse para tal da Análise de Conteúdos (Bardin, 2011), que possibilitou a construção de quatro categorias, nas quais os conteúdos astronômicos foram agrupados: Terra, Sistema Solar, Via Láctea e Universo. Após a leitura, coleta de dados, construção de categorias, observou-se a dicotomia na apresentação destes conteúdos. As propostas curriculares analisadas foram as de Geografia, Ciências e Física dos estados do Paraná (2008), Rio Grande do Sul (2009) e de Santa Catarina (1998), responsáveis pelo trabalho com Astronomia nestes estados. No Ensino Fundamental, a proposta curricular do estado do Paraná apresenta conteúdos ligados à Astronomia desde o sexto ano até o nono ano, como conteúdo do primeiro bimestre, o que também é apresentado na proposta curricular do estado do Rio Grande do Sul, porém, este, não divide os conteúdos por bimestre e nem por ano, mas por ciclos, sexto e sétimo anos como primeiro ciclo e oitavo e nono anos como segundo ciclo, deixando livre para o professor estruturar sua sequência de conteúdos. A proposta curricular de Santa Catarina não apresenta estes conteúdos de maneira explícita, não divide dos conteúdos nem por ano, nem por série, traz uma sequência de conteúdos para serem trabalhados ao longo dos quatro anos, nos quais, aparecem timidamente alguns conteúdos de Astronomia. Para o Ensino Médio, as propostas curriculares do Paraná e de Santa Catarina parecem que se repetem, apresentando apenas o conteúdo Gravitação Universal, na primeira série do Ensino Médio, já a proposta curricular do Rio Grande do Sul, traz uma sequência que é proposta nos PCN (Brasil, 1998; 1999; 2002), na qual aparece o tema em questão, porém, em todos os anos, em todas as propostas, não há um detalhamento do que, de como trabalhar os conteúdos. O detalhamento facilita a prática pedagógica, pois, conteúdos simples como as Estações do Ano, Fases da Lua, sequer são citados nas propostas curriculares pesquisadas. Outro aspecto observado é que os conteúdos de um modo geral não trazem uma sequência e não primam por partir do entorno do aluno, daquilo que ele conhece para estruturar novos conceitos. Tais aspectos dificultam o fazer pedagógico, pois, por ser uma região com características culturais semelhantes, era esperado que as propostas fossem mais próximas, o! que facilitaria em muito, por exemplo, transferências dentro de um mesmo estado ou interestaduais. Pautando-se no que foi observado, na falta de especificidade dos conteúdos, clareza, sequência dos conteúdos e propostas de trabalho é proposto uma sequência de conteúdos de Astronomia, com materiais e recursos, pois, como apontado por Langhi e Nardi (2009), é necessário fornecer além da informação, do conteúdo, o como fazer. Tal proposta não visa estabelecer-se como regra, mas como suporte ao professor para facilitar sua prática pedagógica e tornar o trabalho com Astronomia presente nas escolas brasileiras. Bardin, L. Análise de conteúdo. Tradução Luís Antero Reto, Augusto Pinheiro. São Paulo: Edições 70, 2011. 279 p. Langhi, R; Nardi, R. Ensino da astronomia no Brasil: educação formal, informal, não-formal e divulgação científica. Revista Brasileira de Ensino de Física, v. 31, n. 4, p. 4402-1 a 4402-11, 2009.

  17. Birds and people in semiarid northeastern Brazil: symbolic and medicinal relationships

    PubMed Central

    2013-01-01

    Abstract Background At least 511 species of birds occur in the semiarid region of northeastern Brazil and many of them interact with human populations in a number of different ways, including their use in zootherapeutics and their links with local beliefs. Objective The present work examined these types of birds/human interactions (use in zootherapeutics and their links with local beliefs) in the semiarid region of Rio Grande do Norte State in northeastern Brazil. Methods Information was obtained through semi-structured interviews with 120 local residents. Results A total of 16 wild bird species distributed among 11 families were found to interact directly with humans, with Columbidae being the best represented family. Seven species were identified in the medicinal category, five were related to symbolic aspects, while four species were identified as being related to both categories (medicinal and symbolic). Conclusion The accumulated folk knowledge, beliefs, and practices involving the avifauna in the semiarid region of Brazil, whether symbolic or medicinal, demonstrated the cultural importance of this vertebrate group to local human populations and revealed a belief system intrinsically related to cynegetic practices in the region. Portuguese abstract Introdução No semiárido do Brasil ocorrem 511 espécies de aves, algumas das quais interagem frequentemente com as populações humanas locais de diferentes formas, incluindo o uso como zooterápico e a inserção em crenças. Objetivo Esta pesquisa registrou as aves diretamente associadas a essas formas de interação (o uso como zooterápico e a inserção em crenças) na região semiárida do Estado do Rio Grande do Norte, Nordeste do Brasil. Métodos As informações foram obtidas através de entrevistas semiestruturadas aplicadas a 120 moradores locais. Resultados Foram registradas 16 espécies de aves silvestres distribuídas em 11 famílias, sendo Columbidae a que apresentou o maior número de representantes. Sete espécies foram indicadas apenas na categoria medicinal, cinco espécies apenas relacionadas a aspectos simbólicos e quatro foram indicadas como relacionadas a ambas as categorias (medicinal e simbólica). Conclusão Os conhecimentos, crenças e práticas relacionadas à avifauna no semiárido brasileiro, seja no aspecto simbólico ou medicinal, demonstra a importância cultural que esse grupo de vertebrados representa para as populações locais, revelando um sistema de crenças que está intrinsicamente relacionado às práticas cinegéticas na região. PMID:23295130

  18. Data Democratization - Promoting Real-Time Data Sharing and Use throughout the Americas

    NASA Astrophysics Data System (ADS)

    Yoksas, T. C.

    2006-05-01

    The Unidata Program Center (Unidata) of the University Corporation of Atmospheric Research (UCAR) is actively involved in international collaborations whose goals are real-time sharing of hydro-meteorological data by institutions of higher education throughout the Americas; in the distribution of analysis and visualization tools for those data; and in the establishment of server sites that provide easy-to-use, programmatic remote- access to a wide variety of datasets. Data sharing capabilities are being provided by Unidata's Internet Data Distribution (IDD) system, a community-based effort that has been the primary source of real-time meteorological data for approximately 150 US universities for over a decade. A collaboration among Unidata, Brazil's Centro de PreviSão de Tempo e Estudos Climáticos (CPTEC), the Universidad Federal do Rio de Janeiro (UFRJ), and the Universidade de São Paulo (USP) has resulted in the creation of a Brazilian peer of the North American IDD, the IDD-Brasil. Collaboration among Unidata, the Universidad de Costa Rica (UCR), and the University of Puerto Rico at Mayaguez (UPRM) seeks to extend IDD data sharing throughout Central America and the Caribbean in an IDD-Caribe. Collaboration between Unidata and the Caribbean Institute for Meteorology and Hydrology (CIMH), a World Meteorological Organization (WMO) Regional Meteorological Training Center (RMTC) based in Barbados, has been launched to investigate the possibility of expansion of IDD data sharing throughout Caribbean RMTC member countries. Most recently, efforts aimed at creating a data sharing network for researchers on the Antarctic continent have resulted in the establishment of the Antarctic-IDD. Data analysis and visualization capabilities are being provided by Unidata through a suite of freely-available applications: the National Centers for Environmental Prediction (NCEP) GEneral Meteorology PAcKage (GEMPAK); the Unidata Integrated Data Viewer (IDV); and University of Wisconsin, Space Science and Engineering Center (SSEC) Man-computer Interactive Data Access System (McIDAS). Remote data access capabilities are provided by Unidata's Thematic Realtime Environmental Data Services (THREDDS) servers (which incorporate Open-source Project for a Network Data Access (OPeNDAP) data services), and the Abstract Data Distribution Environment (ADDE) of McIDAS. It is envisioned that the data sharing capabilities available in the IDD, IDD-Brasil, and IDD-Caribe, remote data access capabilities available in THREDDS and ADDE, and analysis capabilities available in GEMPAK, the IDV, and McIDAS will help foster new collaborations among prominent university educators and researchers, national meteorological agencies, and WMO Regional Meteorological Training Centers throughout North, Central, and South America.

  19. Brazil current eddy activity near cape São Tomé based on direct ADCP data measurements from 2006 to 2012

    NASA Astrophysics Data System (ADS)

    Lima, N. D.; Gabioux, M.; Guerra, L. D.; Paiva, A. M.

    2013-05-01

    Cape São Tomé, in the Campos Basin, is a region of intense ocean mesoscale activity where meanders and eddies are formed by instability processes of the Brazil Current. In this work seven years of ADCP current data (2006-2012) are analyzed at different depths over the continental shelf and slope of Campos Basin in order to characterize the variability and vertical struture of meanders and eddies. The present study is a continuation of Lima et al. (2010), in which two years of current meter data, taken at fewer locations and spanning a shorter depth range, were analyzed. This preliminary study suggested that eddy formation at Cape São Tomé may occur throughout the year, and that these eddies, which present a mixed barotropic and baroclinic structure, exert significant influence on the Brazil Current and on the upper portion of the Intermediate Western Boundary Current, which flows northward at intermediate depths. The longer time series of data, now available, alow us to check the validity of Lima et al. (2010) results about mesoscale activity activity, and to test their proposed conceptual model of eddy formation for other events. The ten ADCP moorings analyzed were located between 21°S and 23°S, and 41°W and 39°W. Measurements were taken from the surface down to 750 and 900 meters, and the data have different record lengths for each mooring. High Resolution Sea Surface Temperature dates (GHRSST) are also analyzed in order to provide a broader spatial view, assisting in the interpretation of the phenomena observed in the velocity data. The new results corroborate the study of Lima et al. (2010), showing that eddy formation is a reccuring phenomenon at Cape São Tomé for all the period analyzed. Eddies generate significant variability in current velocity both at the surface and at intermediate depths, changing the depth and intensity of Brasil Current - Intermediate Western Boundary Current system. While the average current system showed a strong baroclinic structure, the variability associated with the meandering of the stream and the eddy generation, had a significant barotropic component. Some eddies pinched off from the current, while others were reabsorbed by the Brasil Current, in accordance with the proposed conceptual model. Reference LIMA, N. D., GUERRA, L. D., PAIVA, A. M., 2010. Brazil Current eddy-activity near cape São Tomé based on direct ADCP measurements, 2010 Meeting of the Americas, Foz do Iguaçu.

  20. Inclusion of Visually Impaired in the School Programme Scheduled Visit of the Museu de Astronomia e Ciências Afins (MAST). (Breton Title: Inclusão de Deficientes Visuais no Programa de Visita Escolar Programada do Museu de Astronomia e Ciências Afins (MAST).) Inclusión de Discapacitados Visuales en el Programa Escolar Programado del Museo de Astronomía y Ciencias Afines (MAST)

    NASA Astrophysics Data System (ADS)

    de Oliveira Gonçalves, Carla; da Conceição Barbosa-Lima, Maria

    2013-07-01

    Inclusive Education in Brazil, contemplated in the 1988 Constitution and in the Law of Guidelines and Bases of National Education (9.394/96) highlights the importance and urgency of promoting inclusive education as a formative element of nationality. Inclusive Education refers to all people who are struggling in school. Inclusion should be in all educational institutions (formal and informal). Our goal in the graduation final task was to report the experience of mediation to visually impaired students of the Instituto Benjamin Constant (IBC) at the Museu de Astronomia e Ciências Afins (MAST), and also suggest some modifications and present new proposals for the School Visit Program (VEP) through a specially constructed apparatus, where the sky can be sensed near the latitude of Rio de Janeiro. A educação inclusiva no Brasil, contemplada na Constituição de 1988 e a Lei de Diretrizes e Bases da Educação Nacional (9.394/96), destaca a importância e urgência de se promover a inclusão escolar como elemento formador da nacionalidade. A educação inclusiva diz respeito a todas as pessoas que enfrentam dificuldades na escola. A inclusão deve estar em todas as instituições educacionais (formais e não formais). Nosso objetivo, no trabalho de final de curso de licenciatura, foi apresentar o relato de experiência de mediação aos alunos deficientes visuais do Instituto Benjamin Constant (IBC) no Museu de Astronomia e Ciências Afins (MAST), as modificações e novas propostas para o Programa de Visita Escolar Programada (VEP) através de um aparelho especialmente construído onde se pode perceber o céu na latitude próxima a do Rio de Janeiro. La educación inclusiva en el Brasil, contemplada en la Constitución de 1988 y en la Ley de Directrices y Bases de la Educación Nacional (9.394/96), destaca la importancia y la urgencia de promover la inclusión escolar como elemento formador de la nacionalidad. La educación inclusiva se refiere a todas las personas que enfrentan dificultades en la escuela. La inclusión debe estar en todas las instituciones educacionales (formales o no). Nuestro objetivo en el trabajo de final de curso de licenciatura, fue el de presentar un relato de la experiencia de mediación a los alumnos con deficiencias visuales del Instituto Benjamin Constant (IBC) en el Museo de Astronomía y Ciencias Afines (MAST) y las modificaciones y nuevas propuestas para el Programa de Visita Escolar Programada (VEP) a través de un aparato especialmente construido con el cual se puede percibir el cielo en una latitud próxima a la de Rio de Janeiro.