940 resultados para Branco Basin


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O presente estudo aborda questões como a democracia, participativa e representativa, governança, capital social e associativismo. O seu objetivo é o de perceber de que forma o associativismo, enquanto elemento de concentração de capital social, e governança enquanto mecanismo de ações participadas, podem levar ao desenvolvimento sustentável, e a uma melhor implementação da democracia. De que forma o associativismo influenciou o desenvolvimento, neste caso em particular, do município de Castelo Branco. Com base nesse objetivo foram realizadas entrevistas a várias associações do município e ao poder local, nomeadamente a três Juntas de Freguesia e à Câmara Municipal para tentar perceber se existe um modelo de governança implementado no município. Se as associações enquanto espaços de produção de capital social têm ou não uma palavra, um espaço de opinião, no que refere ao desenvolvimento da cidade nos diversos campos, social, económico, urbano, etc. Tentar compreender os motivos que levaram à criação dessas associações, sejam elas comerciais, empresariais ou recreativas, e qual o seu contributo para o processo de desenvolvimento local, apurando não só os seus níveis de atividade, mas também o seu contributo para o desenvolvimento local e com que intuito surgiram, uma vez que a participação nas associações, a um nível individual, pode ser visto como um incentivo à identificação e seleção de respostas a problemas pessoais, que ao serem transpostos para a esfera pública, os problemas vividos pelos indivíduos na esfera privada, incentivam a participação coletiva numa ação organizada visando o bem comum e a resolução de problemas de ordem social.

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No Inverno de 1979, um temporal provocou um aluimento de terras no adro da Igreja de Santa Maria do Castelo, na alcáçova de Castelo Branco, colocando à vista diversos vestígios de Época Medieval e Moderna. Com o objectivo de investigar a História e evolução deste monumento, organizou-se uma intervenção arqueológica, que se desenvolveu ao longo de seis campanhas entre 1979 e 1984. Apesar dos resultados relativamente modestos do ponto de vista estrutural, recolheu-se numeroso espólio elaborado nos mais diversos materiais. Além das habituais cerâmicas, recuperaram-se várias peças metálicas, em vidro, osso, azeviche e cabedal, um conjunto de estelas funerárias e restos arqueozoológicos. Pretende-se com este estudo dar a conhecer os resultados obtidos à 30 anos, assim como numa sondagem arqueolólogica levada a efeito em 2000.

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Introduction Several cases of acute Chagas disease (ACD) have been reported in the Peruvian Amazon basin. Methods The objective was to describe and investigate 6 ACD cases in children from indigenous Amazon communities in the province of Datem del Marañón in Loreto department (2006-2010). Results The mean age was 3.6 years. All patients had fever, 4/6 hepatomegaly, 2/6 splenomegaly, and 5/6 had trypomastigotes of Trypanosoma cruzi on thick smears. The fatality rate was 33.3%. Rhodnius pictipes and Rhodnius robustus adults were found inside the homes and in the peri-domiciles. Conclusions All cases reported were isolated cases. We report a new focus of ACD in indigenous populations.

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Introduction Saint Louis encephalitis virus (SLEV) primarily occurs in the Americas and produces disease predominantly in humans. This study investigated the serological presence of SLEV in nonhuman primates and horses from southern Brazil. Methods From June 2004 to December 2005, sera from 133 monkeys (Alouatta caraya, n=43; Sapajus nigritus, n=64; Sapajus cay, n=26) trap-captured at the Paraná River basin region and 23 blood samples from farm horses were obtained and used for the serological detection of a panel of 19 arboviruses. All samples were analyzed in a hemagglutination inhibition (HI) assay; positive monkey samples were confirmed in a mouse neutralization test (MNT). Additionally, all blood samples were inoculated into C6/36 cell culture for viral isolation. Results Positive seroreactivity was only observed for SLEV. A prevalence of SLEV antibodies in sera was detected in Alouatta caraya (11.6%; 5/43), Sapajus nigritus (12.5%; 8/64), and S. cay (30.8%; 8/26) monkeys with the HI assay. Of the monkeys, 2.3% (1/42) of A. caraya, 6.3% 94/64) of S. nigritus, and 15.4% (4/26) of S. cay were positive for SLEV in the MNT. Additionally, SLEV antibodies were detected by HI in 39.1% (9/23) of the horses evaluated in this study. Arboviruses were not isolated from any blood sample. Conclusions These results confirmed the presence of SLEV in nonhuman primates and horses from southern Brazil. These findings most likely represent the first detection of this virus in nonhuman primates beyond the Amazon region. The detection of SLEV in animals within a geographical region distant from the Amazon basin suggests that there may be widespread and undiagnosed dissemination of this disease in Brazil.

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Introduction This study confirmed the absence of natural infection with Xenotropic murine leukemia virus-related virus (XMRV) or XMRV-related disease in human populations of the Brazilian Amazon basin. We demonstrated that 803 individuals of both sexes, who were residents of Belem in the Brazilian State of Pará, were not infected with XMRV. Methods Individuals were divided into 4 subgroups: healthy individuals, individuals infected with human immunodeficiency virus, type 1 (HIV-1), individuals infected with human T-lymphotrophic virus, types 1 or 2 (HTLV-1/2), and individuals with prostate cancer. XMRV infection was investigated by nested PCR to detect the viral gag gene and by quantitative PCR to detect pol. Results There was no amplification of either gag or pol segments from XRMV in any of the samples examined. Conclusions This study supports the conclusions of the studies that eventually led to the retraction of the original study reporting the association between XMRV and human diseases.

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INTRODUCTION : Brazilian spotted fever (BSF) is a disease transmitted by ticks for which the etiological agent is Rickettsia rickettsii. The present essay evaluates the risk factors associated with the transmission of cases of BSF in the time period between 2003 and 2013 in the Piracicaba river basin, state of São Paulo. METHODS : This essay presents a retrospective study to identify the factors associated with the transmission of cases of BSF among all suspected cases identified by the System for Epidemiological Surveillance of São Paulo (CVE). After the description of temporal distribution (onset of symptoms) and the environmental and demographic variations of the confirmed and discarded cases, a multiple logistic regression model was applied. RESULTS : We searched 569 probable locations of infection (PLI) with 210 (37%) confirmed cases of BSF and 359 (63%) discarded cases. The associated variables for the confirmation of BSF in the multiple logistic model using a confidence interval (CI) of 95% were age (OR = 1.025 CI: 1.015-1.035), the presence of Amblyomma sculptum in the environment (OR = 1.629 CI: 1.097-2.439), the collection of ticks from horses (OR = 1.939 CI: 0.999-3.764), the presence of capybaras (OR = 1.467 CI: 1.009-2.138), an urban environment (OR = 1.515 CI: 1.036-2.231), and the existence of a dirty pasture (OR = 1.759 CI: 1.028-3.003). CONCLUSIONS : The factors associated with the confirmation of BSF cases included an urban environment, age, presence of the A. sculptum vector, the collection of ticks from horses, the presence of a capybara population, and a dirty pasture environment.

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Abstract: INTRODUCTION We investigated the association between demographic and behavioral factors and non-adherence to antimalarial therapy. METHODS A demographic questionnaire and 5-item self-reported questionnaire regarding non-adherence were completed by 135 patients after treatment for Plasmodium vivax. RESULTS Treatment interruption, but not demographic factors, was significantly associated with non-adherence to therapy. The likelihood of non-adherence was 5.16 times higher when the patients felt better than when they felt worse. The relative risk of parasitic resurgence was 3.04 times higher in non-adherent patients. CONCLUSIONS Treatment interruption is significantly associated with treatment adherence.

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Four new species of Neidawnaria are described, and compared with other members of the genus. Keys and geographical distribution are given for all nem species and the wings of two other species are illustrated.

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A new species, Hibiscus amazonicus, is described from the Amazon Basin. Characters distinguishing the new species from its nearest relatives presented.

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Three new species of Erythroxylumfrom Amazoniaare described: Enythroxylum nelson-rosaePlowman, E. schunkeiPlowman and E. tucuruiendePlowman. An emended des-cription is given for E; ligustrinum DC., previously know from a single collection from French Guiana: its is here cited from Brazil for the first time. A new variety, E. ligustrinum var. carajasensePlowman, is also described. A provisional list of all Erythroxylum species occurring in Amazonia and peripheral areas is appended.

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Foram coletadas amostras de água em 13 rios pertencentes a bacia do Rio Branco e analizados, quanto aos seguintes parêmetros físico-químicos: pH, condutibilidade elétrica, Ca, Mg, Na, K, Fe solúvel, Fe complexado e total, Mn, P tota, N-Kjedahl, NH4, N-orgânigo, SO4, Côr, Material Húmico, Cl, Si e Al total. Foram analizados os resultados estatísticos do coeficiente de correlação a 5%. Essa bacia possui rios com relativas concentrações de sais minerais no que é muito bem demonstrado pelo PROJETO RADAM BRASILvol. 8 1975, e rios bastantes pobres em eletrólitos. Três desses rios, o Uraricoera, Mucajaí e o Branco, possuem várzeas agricultáveis, principalmente a região do baixo Rio Branco, que deveria ser melhor aproveitada para cultura de subsistência do Território de Roraima.

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If widespread deforestation in Amazon results in reduced evaporative water flux, then either a decrease in evaporation is compensated locally by reduced rainfall,or else changed moisture balance expresses itself downwind in the yet undisturbed forest. The question of where rain will occur is crucial. It is suggested that the appearance of clouds and the occurrence of rainout is governed primarily by the interplay of local meteorologic and physical geography parameters with the atmospheric stability structure except for a few well-defined periods when rain is dominated by large scale atmospheric instability. This means that the study of these phenomena (local heat balances,studies on cloud formation mechanism, vertical atmospheric stability, etc.) must be made on the scale of the cloud size, a few tens of kilometers at most.

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33 species of Chrisopini are described and illustrated, of wich 30 are recorded from the Amazon Basin. Ten new species are described in Chrisopodes(duckei, spínella, nebulosa, lineafrons, polygonica, indetata, conisetosa, breviata, mediocris, and tetifera(, and nine in Ceraesochrysa(squalidens, acutipuppis, rafaeli, reddyi, nigripes, teneuícornis, ariasi, falceifera, and michaelmuris). Neosuarus (type species collaris (Schneider), a new subgenus of Chrysopodes, also contains divisa (Walker), escomeli (Navás) porterina (Navás), and flavescens (Blanchard). Orlandsia Navás and Ancylochrysa Navás are synonymized with Chrysopodes limbata (Navás), Chrysoperla asoralis (Banks) and Suarius nesotala (Banks). A neotype is designate for Ceraeochrysa cubana (Hagen). Ceraeochrysa caligata(Banks) and scapularis (Navás) are valid species. C. gloriae Alayo is synonymized with Ceraeochrysa everes (Banks).

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The two especies of Lophopidae found in the lowland Amazon Basin, Hesticus rufimanus, (walker) and H. sanguinifrons Muir, are redescribed and their geographical distributions given. Keys are provided to genera of New World lophopidae, and to species of Hesticus .

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SUMMARYMajor mineral, major element and minor element compositions are documented for a suite of drill core sediment samples representing a ~350m profile through the Solimões Formation sediments (Western Amazonia). Major element compositions are quantified using a chemical index of alteration (CIA) in order to asses the degree of weathering. Significant variations in CIA values throughout the profile, as well as abrupt changes between overlying, suggest that during the generation and deposition of thes sediments there were rapid changes in the ambient tectonic setting.