817 resultados para POTENCIAL DE CRECIMIENTO - INVESTIGACIONES - BRASIL


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Relato de coletas de anofelinos realizadas em Belém, Pará, Brasil, de 1995 a 2004, comparando os dados obtidos com os de levantamentos anteriores, feitos a partir da década de 1930. Nesses, vinte espécies haviam sido identificadas: Anopheles albitarsis s.l., An. aquasalis, An. argyritarsis, An. braziliensis, An. darlingi, An. eiseni, An. evansae, An. galvaoi, An. intermedius, An. kompi, An. mediopunctatus, An. nimbus, An. nuneztovari, An. oswaldoi, An. peryassui, An. punctimacula, An. shannoni, An. strodei, An. thomasi e An. triannulatus. Sete (An. argyritarsis, An. eiseni, An. galvaoi, An. kompi, An. nimbus, An. punctimacula e An. thomasi) não são agora registradas. A permanência de tantas outras espécies provavelmente decorre da preservação de áreas de mata no âmbito urbano. Duas delas são consideradas de importância vetorial (An. darlingi e An. aquasalis). Esta última continua sendo a de maior densidade nas coletas (46,26% dos adultos e 99,21% das larvas) e é a única registrada em todos os distritos administrativos. Existe, portanto, risco potencial de transmissão de malária em todo o município.

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Os resíduos sólidos dos serviços de saúde (RSSS) oferecem risco potencial para saúde pública e meio ambiente perante um gerenciamento inadequado. Objetivou-se verificar aspectos do manejo interno dos RSSS do município paraense de Marituba. Através da aplicação de questionários e visitas de campo, realizou-se um estudo descritivo, observacional em treze estabelecimentos de saúde. O volume total de resíduos gerados era de cerca de 13.000kg/semana. Havia limitações nas diversas etapas do manejo interno, como a realização de tratamento interno somente num local, o armazenamento externo, que ocorria em quatro instituições e de maneira precária, entre outros. Também, havia conformidades como acondicionamento em sacos e recipientes adequados, segregação dos resíduos comuns. De modo geral, as normas federais não eram atendidas e o gerenciamento de RSSS dos estabelecimentos de saúde necessita de adequação na realização de todas as etapas do manejo, para controlar e diminuir os riscos e reduzir a quantidade de resíduos.

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Pós-graduação em Engenharia Mecânica - FEG

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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

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Forest species with economic potential, such as aroeira (Schinus terebinthifolius Raddi.), require selection of individuals with superior characteristics for use in forest restoration projects and for establishment of commercial plantations. These plantations can contribute to the sustainability of natural populations of species in the remaining forest fragments, in areas of permanent preservation, legal reserves or other areas of ecological significance. It was evaluated the fruits' yield, morphometry and viability of seeds from 15 individuals of aroeira, collected in different fragments in the region of Lower São Francisco river, Sergipe State. The fruit yield was estimated by Fornier's intensity index, and the morphometric characteristics were obtained with a digital paquimeter and analytical balance. The viability and vigor were evaluated by germination percentage and germination speed index (GSI), under controlled conditions. The results of fruit yield were subjected to variance analysis, and the means were compared by Tukey (p <0.05). The other variables means were compared by Scott-Knott test (p<0.05). The individuals differed in Fournier's indices (indices 1, 2, 3 and 4) and in the size of fruits and seeds. The germination varied from 0 to 83% and the GSI from 0.00 to 0.98. The phenotypic differences observed among individuals for fruit yield, and morphophysiological characteristics can be used in forest restoration and establishment of provenances/progenies tests, aiming discrimination of superior material for future commercial plantations.

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The brainstem auditory evoked potential is an electrodiagnostic test that allows a functional assessment of the auditory pathways from the middle ear to the brainstem. This test, in veterinary medicine, is not commonly used in Brazil. This paper reports the use of auditory evoked potential for deafness detection in a cat with unilateral peripheral vestibular syndrome secondary to otitis media.

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The aim of this study was to estimate the genetic parameters on a progeny test of Enterolobium contortisiliquum, located at the Fazenda Experimental de Luíz Antônio (IF-SP), São Paulo State, Brazil, for genetic selection and seed production. The coefficients of genetic variation and heritability, as well as the genetic and phenotypic correlations for the silvicultural traits diameter at breast height (DBH) and total height of plants at the age of 19, 20, and 21 years and bifurcation (BIF) and stem straightness (RET), at the age of 19 years were estimated. The F test of analysis of variance detected significant variation among the progeny for the traits DBH, height in the three tested ages, and straightness of the trunk, which indicates that the tested population can be improved by selection among progenies. The estimation of heritability at the level of progeny (h²m, minimum of 0.50) for all traits was high and at the levels of individual plants (h²i, minimum 0.18) and within progenies (h²d, minimum of 0.14) was medium, indicating that the population can be improved by selection among and within progenies. Significant high genetic and phenotypic correlations among pairwise growth traits of the same age were detected as well as among those with different ages. Therefore, the direct selection, of a trait allows indirect selection of another. The results showed the potential of this progeny test to enhance a seed orchard by selection and seed production for commercial and environmental reforestation plans.

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In this study we intent to contextualize the topic environmental vulnerability on the world stage, highlighting similarities and differences in their conceptions in Portugal and Brazil. In the literature about the vulnerability is already established the contribution of Geotechnologies, especially the Systems of Remote Sensing and Orbital Imaging as well as Geographic Information Systems (GIS) and its potential for modelling physical and socioeconomic aspects for the prevention, mitigation and facing risk manifestations, whether natural, technological or mixed. This paper aims to discuss the methodological framework of vulnerability studies and the results of application in the modelling of socioeconomic and environmental data in the context of the Region Centre of Portugal and the State of Sao Paulo, Brazil. The methodology for analysing the vulnerability of these regions was based on quantitative studies of the capacity of resistance and resilience of populations and territories. The results were consistent with the socio-environmental realities of the study areas and reflect the complexity of facing and recovery of risk situations in case of territories and populations under low economic conditions and urban infrastructure, whether in Brazil and Portugal.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The global economic scenario, from the late 1980s, it was predominantly marked by the hegemony of political and economic orthodoxy. The strength of a great political pact that brought together the financial sector, rentiers and the big capital, and had the Washington Consensus as base, induced countries to adopt liberalizing policies such as trade liberalization, privatization and deregulation. The failure of these policies, manifested in unemployment, external vulnerability and low growth has led to a change in economic direction, particularly after the election of President Lula. Amid this situation, we can see a reorientation of the role of the Brazilian state, in response to a movement of their own society organized to implement a new national strategy, with the state as a promoter of development. In this project of a new strategy, the state action becomes strategic and not systemic, turning to strengthen national companies in strategic sectors and internationally competitive. In this ongoing process of a new development strategy, we adopted the conceptualization of what Bresser-Pereira calls the new developmentalism.

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The petrochemical industry represents a sector of intense activity, in constant expansion and great economic importance for Brazil. In order to be used in various human activities petroleum needs to suffer a refinement process that, besides requiring large amounts of water, produces large amounts of wastes, which are discharged in hydric resources. Petroleum is a complex mixture mainly comprised by hydrocarbons, many of them are recognized as toxic chemicals, which are able to induce a considerable environmental pollution. Since water is an important resource for the maintenance of ecosystems and is also the final receiver of effluent discharges of the petroleum industry, there is an imminent need to monitor, constantly, the hydric resources that are influenced by this industrial activity, so that it can be ensured the environmental health. This study aimed, mainly, to analyze the quality of water samples derived from refinement process performed of the largest petroleum refinery in Brazil (REPLAN), in distinct steps of the industry treatment, and waters of rivers associated to its activity. Micronuclei and Nuclear Abnormalities tests were performed in erythrocytes of the fish species Oreochromis niloticus exposed to water samples derived from refinery use and to rivers under the influence of their effluents, in order to evaluate its possible toxic, genotoxic and mutagenic effects. The results obtained show that the treatment carried out by the refinery, during the evaluated periods, was effective, since the substances present in the water samples did not induce significant genotoxic and/or mutagenic alterations in the genetic material of the test organisms. On the other hand, when the substances present in the refinery effluent mix with the ones derived from other industrial activities developed upstream of this industry, the resultant compound, in some periods, presented genotoxic potencial, characterized by a rise of erythrocytic...