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Search Results: 1 - 10 of 36208 matches for " Fernando Afonso Bonillo;Hilário "
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Densidade, tamanho populacional e conserva??o de primatas em fragmento de Mata Atlantica no sul do Estado de Minas Gerais, Brasil
Costa, Maurício Djalles;Fernandes, Fernando Afonso Bonillo;Hilário, Renato Richard;Gon?alves, Aline Vaz;Souza, Janaína Maria de;
Iheringia. Série Zoologia , 2012, DOI: 10.1590/S0073-47212012000100001
Abstract: the purpose of this work is to estimate the density and the population size of four primate species [alouatta clamitans cabrera, 1940; callicebus nigrifrons (spix, 1823); callithrix aurita (é. geoffroy, 1812); cebus nigritus (goldfuss, 1809)] which occur in a fragment of atlantic forest of approximately 350 hectares located in pouso alegre, state of minas gerais, as well as to give subsidies for the conservation of those species in the area. the population surveying was carried out through the distance sampling method in linear transects (distance sampling). data were collected between april and august 2008 from four transects deployed in the study area. the density and population size were calculated using the software distance 5.0 and were estimated in 23,83 ± 9,78 ind./km2 for callicebus nigrifrons, 14,76 ± 5,92 ind./km2 for callithrix aurita and 7,71 ± 2,13 ind./km2 for cebus nigritus. the population size was estimated in 83,0 ± 34,0 individuals for c. nigrifrons, 52,0 ± 20,8 individuals for callithrix aurita and 27,0 ± 7,4 individuals for cebus nigritus. with regard to the howler monkey (a. clamitans), it was stated out that just a group with six individuals survive in the area. in conclusion, the chances for these isolated populations to survive are slim due to the risk of stochastic events. the creation of ecological corridors connecting the study area to the other fragments, besides the translocation of individuals from other areas of the atlantic forest to this region, could provide alternatives to ensure the viability of these populations in a long-term. therefore, it is necessary to consolidate public policies in pouso alegre that lead to the creation, enlargement and management of conservation units and incentives for the adoption of productive practices based on sustainability in these areas of ecological interest.
Elemental Composition of PM2.5 in Araraquara City (Southeast Brazil) during Seasons with and without Sugar Cane Burning  [PDF]
Flavio Soares Silva, Ricardo Henrique Moreton Godoi, Romà T auler, Paulo Afonso de André, Paulo Hilário Nascimento Saldiva, Rene van Grieken, Mary Rosa Rodrigues de Marchi
Journal of Environmental Protection (JEP) , 2015, DOI: 10.4236/jep.2015.65041
Abstract: Particulate matter with an aerodynamic diameter below 2.5 μm (PM2.5), present in polluted air, has been associated with a large spectrum of health impairments, mainly because of its deep deposition into the lungs. Araraquara City (Southeast Brazil) is surrounded by sugar-cane plantations, which are burned to facilitate the harvesting; this process causes environmental pollution due to the large amounts of soot that are released into the atmosphere. In this work, the elemental composition of PM2.5 was studied in two scenarios, namely in sugar-cane harvesting (HV) and in non-harvesting (NHV) seasons. The sampling strategy included one campaign in each season. PM2.5 was collected using a dichotomous sampler (10 L·min-1, 24 h) with PTFE filters. Information concerning the bulk elemental concentration was provided by energy-dispersive X-ray fluorescence. Enrichment factor analysis indicated that S, Cl, K, Cr, Ni, Cu, Zn, As, Cd and Pb were highly enriched relative to their crustal ratios (to Al). Principal component analysis was used to get some insight about the sources of the elements. Principal component 1 (PC1) explained 30.5% of data variance. The elements that had high loading (>0.7) were: S, Cr, As, and Pb; these are associated with combustion of fossil fuels. In principal component 2 (PC2), Cl, Cu, Zn, and Cd showed high loadings; these elements are associated with biomass burning. The Ni concentration found is three times larger than the threshold of risk for lung cancer, as recommended by the World Health Organization.
Lean diesel technology and human health: a case study in six Brazilian metropolitan regions
André, Paulo Afonso de;Veras, Mariana Matera;Miraglia, Simone Georges El Khouri;Saldiva, Paulo Hilário Nascimento;
Clinics , 2012, DOI: 10.6061/clinics/2012(06)15
Abstract: objective: due to their toxicity, diesel emissions have been submitted to progressively more restrictive regulations in developed countries. however, in brazil, the implementation of the cleaner diesel technologies policy (euro iv standards for vehicles produced in 2009 and low-sulfur diesel with 50 ppm of sulfur) was postponed until 2012 without a comprehensive analysis of the effect of this delay on public health parameters. we aimed to evaluate the impact of the delay in implementing the cleaner diesel technologies policy on health indicators and monetary health costs in brazil. methods: the primary estimator of exposure to air pollution was the concentration of ambient fine particulate matter (particles with aerodynamic diameters <2.5 μm, [pm2.5]). this parameter was measured daily in six brazilian metropolitan areas during 2007-2008. we calculated 1) the projected reduction in the pm2.5 that would have been achieved if the euro iv standards had been implemented in 2009 and 2) the expected reduction after implementation in 2012. the difference between these two time curves was transformed into health outcomes using previous dose-response curves. the economic valuation was performed based on the daly (disability-adjusted life years) method. results: the delay in implementing the cleaner diesel technologies policy will result in an estimated excess of 13,984 deaths up to 2040. health expenditures are projected to be increased by nearly us$ 11.5 billion for the same period. conclusions: the present results indicate that a significant health burden will occur because of the postponement in implementing the cleaner diesel technologies policy. these results also reinforce the concept that health effects must be considered when revising fuel and emission policies.
Avalia??o antropométrica e consumo alimentar em crian?as menores de cinco anos residentes em um município da regi?o do semiárido nordestino com cobertura parcial do programa bolsa família
Saldiva, Silvia Regina Dias Médici;Silva, Luiz Fernando Ferraz;Saldiva, Paulo Hilário Nascimento;
Revista de Nutri??o , 2010, DOI: 10.1590/S1415-52732010000200005
Abstract: objective: the objective of this study was to assess the health and nutritional status of children under five years of age and to associate the quality of the foods consumed with the bolsa família program in a city located in the brazilian semi-arid region. method: a total of 189 children from a sample of 411 households in the city of jo?o camara (rn) were assessed. weight and height were measured and socioeconomic and food habits were determined with the use of questionnaires. the nutritional status of the children was determined with the weight-for-age, height-for-age and weight-for-height indicators. univariate analyses were done and bivariate and multivariate logistic regression models were constructed to test the hypothesis of the study. results: of the studied children, 4.3% were underweight, 9.9% were stunted and 14.0% were overweight. the nutritional status of children whose families receive the bolsa família financial aid was not significantly different from those whose families do not receive the aid. in both groups, the consumption of fruits and non-starchy vegetables was low and similar. children from families who receive the aid were 3 times more likely to eat junk food (or 3.06 - ci 1.35-6.95). conclusion: the food intake patterns of this population indicate that they are at food and nutritional risk. health professionals need to intervene in order to promote healthier eating habits.
Amiloidose na cavidade bucal: aspectos clínicos, histopatológicos e ultra-estruturais
Faria Paulo Rogério de,Menezes Luiz Fernando Carvalho de,Saldiva Paulo Hilário Nascimento,Della Coletta Ricardo
Jornal Brasileiro de Patologia e Medicina Laboratorial , 2003,
Abstract: Amiloidose refere-se à deposi o extracelular e progressiva de proteínas fibrilares patogênicas com características microscópicas e ultra-estruturais similares. A amiloidose pode ser sistêmica ou localizada. Descrevemos três pacientes que desenvolveram amiloidose intra-oral, sendo que dois casos manifestaram amiloidose localizada e o outro caso apresentou amiloidose sistêmica com acometimento de língua. Nos três casos, o exame histopatológico evidenciou depósitos de amilóide, os quais foram confirmados pela colora o de vermelho-congo. A ultra-estrutura mostrou material fibrilar compatível com amilóide. Apesar de infreqüente, a cavidade bucal pode ser um importante local de acometimento de amiloidose.
Associa??o entre polui??o atmosférica e doen?as respiratórias e cardiovasculares na cidade de Itabira, Minas Gerais, Brasil
Braga, Alfésio Luís Ferreira;Pereira, Luiz Alberto Amador;Procópio, Marly;André, Paulo Afonso de;Saldiva, Paulo Hilário do Nascimento;
Cadernos de Saúde Pública , 2007, DOI: 10.1590/S0102-311X2007001600017
Abstract: the city of itabira, minas gerais state, brazil, is located in the espinha?o mountain range, an area that features large-scale mechanized iron ore pit mines. the current study evaluates the acute effects of inhalable particulate matter (pm10) in terms of emergency room visits due to respiratory and cardiovascular diseases in itabira. generalized additive poisson regression models were adopted, controlling for temperature, humidity, and both short and long-term seasonality. increases of 10mg/m3 in pm10 were associated with increases in respiratory emergency room visits of 4% (95%ci: 2.2-5.8), at lags 0 and 1 for children and adolescents younger than 13 years of age, and of 12% (95%ci: 8.5-15.5) on the three subsequent days for adolescents (13 to 19 years of age). for cardiovascular diseases, the effect was acute (4%; 95%ci: 0.8-8.5) and mainly for the 45 to 64 age group. these results show that pm10 generated by open pit mining can lead to health problems in the exposed population.
Sewage sludge does not induce genotoxicity and carcinogenesis
Silva, Paula Regina Pereira;Barbisan, Luis Fernando;Dagli, Maria Lúcia Zaidan;Saldiva, Paulo Hilário Nascimento;
Genetics and Molecular Biology , 2012, DOI: 10.1590/S1415-47572012005000054
Abstract: through a series of experiments, the genotoxic/mutagenic and carcinogenic potential of sewage sludge was assessed. male wistar rats were randomly assigned to four groups: group 1 - negative control; group 2 - liver carcinogenesis initiated by diethylnitrosamine (den; 200 mg/kg i.p.); group 3 and g4- liver carcinogenesis initiated by den and fed 10,000 ppm or 50,000 ppm of sewage sludge. the animals were submitted to a 70% partial hepatectomy at the 3rd week. livers were processed for routine histological analysis and immunohistochemistry, in order to detect glutathione s-transferase positive altered hepatocyte foci (gst-p+ ahf). peripheral blood samples for the comet assay were obtained from the periorbital plexus immediately prior to sacrificing. polychromatic erythrocytes (pces) were analyzed in femoral bone-marrow smears, and the frequencies of those micronucleated (mnpces) registered. there was no sewage-sludge-induced increase in frequency of either dna damage in peripheral blood leucocytes, or mnpces in the femoral bone marrow. also, there was no increase in the levels of dna damage, in the frequency of mnpces, and in the development of gst-p ahf when compared with the respective control group.
Amiloidose na cavidade bucal: aspectos clínicos, histopatológicos e ultra-estruturais
Faria, Paulo Rogério de;Menezes, Luiz Fernando Carvalho de;Saldiva, Paulo Hilário Nascimento;Della Coletta, Ricardo;Vargas, Pablo Agustin;
Jornal Brasileiro de Patologia e Medicina Laboratorial , 2003, DOI: 10.1590/S1676-24442003000200012
Abstract: amyloidosis refers to extracellular and progressive deposition of the fibrilar protein with similar microscopic and ultrastructural features. amyloid deposits can occur in the localized (one organ) or systemic form (several organs). we report three patients which developed intraoral amyloidosis. two of them were clinical cases which showed localized amyloidosis and another, an autopsied patient with systemic amyloidosis involving the tongue. in these three cases, the histopathologic study displayed amyloid deposits, which were confirmed with stain congo red and apple-green birefringence under polarized light. ultrastructural features presented fibrilar material compatible with amyloid. although uncommon, oral cavity can be involved by amyloidosis.
Partidos políticos evangélicos conservadores bíblicos en la Argentina: formación y ocaso 1991-2001
Wynarczyk, Hilário
Civitas , 2006,
Generational Differences in the Orientation of Time in Cantonese Speakers as a Function of Changes in the Direction of Chinese Writing
Hilário de Sousa
Frontiers in Psychology , 2012, DOI: 10.3389/fpsyg.2012.00255
Abstract: It has long been argued that spatial aspects of language influence people’s conception of time. However, what spatial aspect of language is the most influential in this regard? To test this, two experiments were conducted in Hong Kong and Macau with literate Cantonese speakers. The results suggest that the crucial factor in literate Cantonese people’s spatial conceptualization of time is their experience with writing and reading Chinese script. In Hong Kong and Macau, Chinese script is written either in the traditional vertical orientation, which is still used, or the newer horizontal orientation, which is more common these days. Before the 1950s, the dominant horizontal direction was right-to-left. However, by the 1970s, the dominant horizontal direction had become left-to-right. In both experiments, the older participants predominately demonstrated time in a right-to-left direction, whereas younger participants predominately demonstrated time in a left-to-right direction, consistent with the horizontal direction that was prevalent when they first became literate.
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