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Search Results: 1 - 10 of 344147 matches for " Alessandro Carvalho dos;Santos Júnior "
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Relationship between rainfall and temperature: observations on the cases of visceral leishmaniasis in S?o Luis Island, State of Maranh?o, Brazil
Viana, Gra?a Maria de Castro;Nascimento, Maria do Desterro Soares Brand?o;Rabelo, érica Milena Fernandes;Diniz Neto, Jo?o Arnaud;Binda Júnior, José Roberto;Galv?o, Carolina de Souza;Santos, Alessandro Carvalho dos;Santos Júnior, Onildo Martins;Oliveira, Rodrigo Artur Souza de;Guimar?es, Rafael Silva;
Revista da Sociedade Brasileira de Medicina Tropical , 2011, DOI: 10.1590/S0037-86822011000600013
Abstract: introduction: visceral leishmaniasis is a serious public health problem that requires global control strategies, especially with respect to factors that may intervene in reducing the incidence of endemicity. in this work, rainfall density and temperature were correlated with the incidence of human cases in an area endemic for leishmaniasis in s?o luis do maranh?o, northeastern brazil. methods: notification of human cases by the national health foundation/regional coordination of maranh?o (funasa/corema) from 2002 to 2010 was used. ecological data (mean temperature and rainfall density) were provided by the meteorological office of state. results: a significant association was verified between the number of vl cases and rainfall rate but not in the analysis concerning mean temperatures. conclusions: these data suggest that the control actions in visceral leishmaniasis should be performed during rainy season in the state of maranh?o, which is in the first half of the year.
Evaluation of laboratory markers of progression of HIV disease to death
Viana, Gra?a Maria de Castro;Nascimento, Maria do Desterro Soares Brand?o;Ferreira, Aila de Menezes;Rabelo, érica Milena Fernandes;Diniz Neto, Jo?o Arnaud;Galv?o, Carolina de Souza;Santos, Alessandro Carvalho dos;Santos Júnior, Onildo Martins;Oliveira, Rodrigo Artur Souza de;Binda Júnior, José Roberto;
Revista da Sociedade Brasileira de Medicina Tropical , 2011, DOI: 10.1590/S0037-86822011005000062
Abstract: introduction: one of the important current problems in hiv/aids infection is the establishment of epidemiological and laboratorial prognostic parameters during patient follow-up. this study aimed at analyzing the evolution of laboratory tests: cd4 lymphocyte count, viral load, hemoglobin (hb), aspartate aminotransferase (ast), alanine aminotransferase (alt), and the epidemiological variables sex and age as prognostic factors for survival in progression to death among aids patients. methods: a retrospective study was conducted using analysis of medical records, and prospective 24-month follow-up of patients with hiv/ aids attended at the president vargas hospital outpatient clinic, a reference center in hiv/ aids attendance in the state of maranh?o, brazil. the study analyzed patients aged 10 to 60 years old, who manifested aids and who were not using antiretroviral therapy or had used it for less than 5 years. the chi-square test was used for statistical analysis. results: the sample included 100 patients - 57 were current outpatients, and 43 had died. the variables viral load (p=0.726), alt (p=0.314), sex (p=0.687), and age (p=0.742) were analyzed, and no evidence of association between them and worst prognosis was observed. conclusions: a significant relation was verified between low hb levels (p=0.000) and cd4 (p=0.000) and shorter survival.
Análise da propuls?o em cadeira de rodas manual: revis?o de literatura
Sagawa Júnior, Yoshimasa;Haupenthal, Alessandro;Borges Junior, Noé Gomes;Santos, Daniela Pacheco dos;Watelain, Eric;
Fisioterapia em Movimento , 2012, DOI: 10.1590/S0103-51502012000100018
Abstract: objectives: to analyze aspects related with wheelchair propulsion. materials and methods: in order to delineate this review the search for information was carried out within electronics databases, using the following descriptors: "wheelchair propulsion", "wheelchair biomechanics" e "wheelchair users". full papers published in english and french were included in the study. results: the wheelchair propulsion is a complex movement that requires the execution of repeated bi manual forces applications during a short time period. in this movement high levels of force must be produced due to the bad mechanical performance of the wheelchair. could be characterized that wheelchair users are not satisfied with their wheelchair, the places are not adapted to their presence and lack of specific criteria for the adjustment of this equipment. the main points to look at are the seat height in relation to elbow flexion (100-120 degrees) with his hand in the propulsion rim and tire pressure. the semicircular mode of technique propulsion seems to be more appropriate; in this pattern the wheelchair user returns his hand under the rim after propulsion. efforts in wheelchairs are high and the incidence of injuries in wheelchair users is high. conclusion: one can conclude that in spite of researchers’ efforts there are still many divergences between topics and methods of evaluation, what makes difficult to apply the experimental results to the wheelchairs users’ daily life.
Utilization of the chlorophyll a fluorescence technique as a tool for selecting tolerant species to environments of high irradiance
Gon?alves, José Francisco de Carvalho;Santos Júnior, Ulysses Moreira dos;
Brazilian Journal of Plant Physiology , 2005, DOI: 10.1590/S1677-04202005000300005
Abstract: we examine the hypothesis that the chlorophyll a fluorescence technique can be an efficient tool to support the selection of species adapted to high irradiance and therefore, suitable for use in initial rehabilitation projects of degraded areas. the experiment was conducted at the pedro de moura operational base, amazonas, brazil. the fluorescence transients were obtained using a portable fluorometer for leaves of bombacopsis macrocalyx (bm), eugenia cumini (ec), iryanthera macrophyla (im) and senna reticulata (sr), which were subjected to high irradiance between 12:00 am and 1:00 p.m. using the ojip test, the following were calculated: performance index (piabs), density of reaction centres per cross section (rc/cs), maximum efficiency of photosystem ii (fpo), and probability of energy excitation (yo) or that an absorbed photon (feo) moves an electron beyond quinone a. the highest value of piabs was found in ec (0.40) while the lowest values were found in bm (0.08) and im (0.06). these low values of piabs in bm and im were a result of the low values for rc/cs (121 for bm; 142 for im) and fpo (0.50 for bm; 0.48 for im) when compared to the values in ec (rc/cs=303; fpo=0.72) and sr (rc/cs=326; fpo=0.73). it was also observed that in sr the decrease in piabs when compared with ec resulted from a low value of yo, which was 32 % lower than the value found in ec. regarding the piabs per plant, ec had the largest number of individuals with high performance while im and bm had the largest numbers of individuals with low performance. in conclusion, the chlorophyll a fluorescence technique enabled the evaluation of the photochemical performance of plants in the field, in turn permitting the selection of species most suitable for rehabilitation of degraded areas.
Estabelecimento de normas DRIS para o diagnóstico nutricional do coqueiro-an?o verde na regi?o Norte Fluminense
Santos, Anselmo Lúcio dos;Monnerat, Pedro Henrique;Carvalho, Almy Júnior Cordeiro de;
Revista Brasileira de Fruticultura , 2004, DOI: 10.1590/S0100-29452004000200035
Abstract: field trials were conducted with the aim of establishing dris norms for green dwarf coconut in the north of the state of rio de janeiro as an alternative for the nutritional diagnosis of plants. trials were conducted in the districts of s?o jo?o da barra, at s?o jo?o farm and quissam?, at capivari farm, from march, 2000 to december, 2001. a high yielding crop at the s?o jo?o farm, whose mean yield was 227 ± 16 fruits plant-1 year-1, had leaves samples taken at 132 days intervals during a two year period to establish dris norms. lower yielding plants at the capivari farm were nutritionally diagnosed by means of the generated dris norms. the plants to be diagnosed were divided into four yielding categories, <100; 101-150; 151-200 and >200 fruits plant-1 year-1. the diagnosis by means of dris indicated the following limitation order of deficiency: k> ca> b, in the coconut culture at the capivari farm. the classes of smaller productivity presented k and b dris indices more negative than the class of larger productivity. an apparent nutritional unbalance between ca and mg was indicated.
Análise de Desempenho em Laboratório de Linha Gotejadora antes e Após sua Utiliza o em Campo
Manoel Valnir Júnior,Clayton Moura de Carvalho,Aristides Martins dos Santos Neto,José Ivo Soares
Revista Brasileira de Agricultura Irrigada , 2011, DOI: 10.7127/rbai.v5n400068
Abstract: O trabalho realizado no Laboratório de Ensaios em Equipamentos de Irriga o - LEEI teve como objetivo analisar, conforme a norma NBR ISO 9261:2006, o desempenho de linhas gotejadoras antes e depois de sua instala o em campo após o ciclo do mel o. Para tanto foram determinados os coeficientes CUC, CUD, CUE e CVF, a partir de valores de vaz o decorrentes da aplica o de sete níveis de press o, sendo: 25, 50, 75, 100, 125, 150 e 200 kPa. Dos resultados apresentados pode-se concluir que: os coeficientes de avalia o CUC, CUD e o CUE, obtidos antes e após utiliza o do equipamento em campo e em todas as press es testadas, apresentaram decréscimos, contudo, com pequenas redu es de vaz es, permanecendo dentro dos níveis aceitáveis na literatura pertinente; os valores de CV dos tubos gotejadores avaliados nas mesmas condi es, embora apresentem comportamento oposto, foram aceitáveis, segundo a Norma NBR ISO 9261:2006.
Characterization of Clinical and Environmental Isolates of Cryptococcus neoformans/Cryptococcus gattii Complex Maintained in Yeast Culture Collection in São Paulo, Brazil  [PDF]
Pedro Henrique Magalh?es Cardoso, Bosco Christiano Maciel da Silva, Jairo Ivo dos Santos, Rennan Luiz Oliveira dos Santos, Diniz Pereira Leite Júnior, Marcos Ereno Auler, Luciana da Silva Ruiz, Eriques Gon?alves da Silva, Débora Moreira, Carina Domaneschi, Francisco de Assis Baroni, Marcia de Souza Carvalho Melhem, Marilena dos Anjos Martins, Claudete Rodrigues Paula
Open Journal of Epidemiology (OJEpi) , 2018, DOI: 10.4236/ojepi.2018.82007
Abstract: Objective: As isolates of Cryptococcus are frequently kept collection stocks in institutions, sometimes without proper characterization, we sought to determine the genotype profiles, protease and phospholipase activities “in vitro” and the susceptibility testing for azoles and amphotericin B. Methodology: 84 isolates from several regions of Brazil (40 samples from clinical origin and 44 isolates from environmental origin) were maintained at the microorganism’s bank of the Biomedical Science Institute (ICB-USP) of the São Paulo University, in São Paulo, Brazil. This isolates was submitted fungal strains determination, DNA extraction and purification, determination of genotype by URA5 gene RFLP of CGB-positive isolates, protease and phospholipase activity and susceptibility to antifungals. Results: Of six CGB positive isolates tested by RFLP-PCR, only four presented a genomic profile consistent C. gattii species (VGII), while two other were C. neoformans (VNI and VNIII), indicating the existence of canavanine-resistante C. neoformans isolates in the culture collections. The clinical isolates secreted higher levels of phospholipase and environmental isolates but no differences were observed for the protease levels. Almost all isolates were sensible to azoles and amphotericin B. Conclusion: We point out in this research the existence of C. neoformans strains resistant to canavanine and intrinsic characteristic of C. gatti. These results demonstrate the importance to perform a detailed characterization of isolates kept in culture collections.
Chloroplastid pigment contents and chlorophyll a fluorescence in Amazonian tropical three species
Morais, Ronaldo Ribeiro de;Gon?alves, José Francisco de Carvalho;Santos Júnior, Ulysses Moreira dos;Dünisch, Oliver;Santos, André Luis Wendt dos;
Revista árvore , 2007, DOI: 10.1590/S0100-67622007000500020
Abstract: plants react to changes in light and hydrological conditions in terms of quantity and composition of chloroplastidic pigments, which affects the photosynthetic properties and consequently the accumulation of plant biomass. thus, the chloroplastidic pigment concentration and chlorophyll a fluorescence of three amazonian species (bertholletia excelsa, carapa guianensis e dipteryx odorata) were investigated in sun and shade leaves form the tree crown collected during two distinct periods of precipitation (dry and rainy seasons). pigment contents were determined by spectrophotometry and fluorescence variables were determined using a portable fluorometer. the results demonstrated that the species showed high concentrations of chl a, chl b e chltotal during the wet season in relation to the dry season, especially in shade leaves. a higher concentration of carotenoids was found in b. excelsa, when compared with leaves of c. guianensis and d. odorata. in leaves of b. excelsa and d. odorata no significant difference was found in relation to the photochemistry of photosystem ii (fv/fm) between the wet and dry seasons. in conclusion, the three species react differently to variations in the light and precipitation conditions regarding light capture, aspects that might be considered in the management of forest plantations.
Efeito do nitrogênio em características agron?micas da mandioca
Cardoso Júnior, Nelson dos Santos;Viana, Anselmo Eloy Silveira;Matsumoto, Sylvana Naomi;Sediyama, Tocio;Carvalho, Fábio Martins de;
Bragantia , 2005, DOI: 10.1590/S0006-87052005000400015
Abstract: with the objective of evaluating the effect of nitrogen on agronomic characteristics of cassava (manihot esculenta crantz), an experiment was conducted at the state university of southwestern bahia (uesb), vitória da conquista, bahia, brazil. in the experiment, conducted in the field, the application of six doses of nitrogen (0, 50, 100, 200, 300 and 400 kg ha-1 n) was studied in two varieties of cassava (sergipe and lisona), adopting a randomized block experimental design, with treatments in a factorial arrangement. the results demonstrate that nitrogen affected height of plants, production of aerial parts of the plants, tuber yield, dry matter and starch contents in roots, and flour yield. number of shoot per plant, harvest index, and leaf area index were not affect by nitrogen. sergipe variety showed greater results than lisona variety for aerial part and tuber yield, root dry matter, root starch production and flour yield.
Efeito da atividade física programada sobre a aptid?o física em escolares adolescentes
Farias, Edson dos Santos;Carvalho, Wellington Roberto Gon?alves de;Gon?alves, Ezequiel Moreira;Guerra-Júnior, Gil;
Revista Brasileira de Cineantropometria & Desempenho Humano , 2010, DOI: 10.5007/1980-0037.2010v12n2p98
Abstract: the objective of this study was to determine the influence of programmed physical activity on the physical fitness of adolescent students over one school year. the sample consisted of 383 students (age range: 10 to 14 years) divided into two groups: 186 cases (96 boys and 90 girls) and 197 controls (108 boys and 89 girls). an intervention study with pre- and post-tests was conducted, in which the intervention group was submitted to programmed physical activity, while the control group underwent conventional classes of school physical education. physical fitness was assessed by sit-and-reach (flexibility), muscle endurance (elbow flexion and extension) and aerobic endurance (run/walk, 9 min) tests. motor performance observed in the three tests (flexibility, strength and endurance) did not improve from pre-test to post-test in either group, but comparison of the intervention and control groups showed significant improvement in the strength and endurance tests for both genders in the intervention group. boys of the two groups also showed dominance in the strength and endurance tests. in general, higher muscle strength and cardiorespiratory fitness and lower flexibility were observed for boys when compared to girls, and all parameters increased in the post-test and were higher in the intervention group compared to control a significant difference in flexibility was only observed between genders. with respect to muscle strength, a significant difference was observed between genders and between the intervention and control group after adjustment for age and socioeconomic level. cardiorespiratory fitness differed significantly between genders and between the intervention and control group.
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