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Search Results: 1 - 10 of 78317 matches for " Carlos Henrique;Araújo "
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Fumo, bebida alcoólica, migra??o, instru??o, ocupa??o, agrega??o familiar e press?o arterial em Volta Redonda, Rio de Janeiro
Klein, Carlos Henrique;Araújo, José Wellington Gomes de;
Cadernos de Saúde Pública , 1985, DOI: 10.1590/S0102-311X1985000200004
Abstract: in 1979, in the city of volta redonda, a cross-sectional epidemiological investigation was carried out to estimate the prevalence of arterial hypertension and to study the association between different factors and arterial blood pressure. about 650 residents between 20 to 74years old were studied. the habit of smoking, the use of alcohol, the low level of education and the insecurity o f employment are some of the characteristics of people with a greater risk of arterial hypertension and, in general, higher average levels of blood pressure. people who knew that their parents had high blood pressure had higher average blood pressure levels and had more chance of being hypertensive according to who standard (systolic > 160 and/or diastolic > 95mmhg). finally, migrants and natives of volta redonda do not show any significant difference in their average pressure and arterial hypertension prevalence.
Erica Cristina Bueno do Prado Guirro,Jo?o Henrique Perotta,Carlos Augusto Araújo Valad?o
Ciência Animal Brasileira , 2010,
Abstract: Systemic administration of morphine in horses is controversial and requires more investigation. In literature, there is no study about intravenous use of morphine in Arabian Horses; because of that, 12 animals were selected and distributed into two groups, GC (5mL NaCl 09%, iv) and GM (0,1mg/Kg morphine, iv). Basal evaluation was performed in T-20 and T-10, drugs were injected in T0 and other measures were carried out in T30min, T60min, T90min, T2h, T3h, T6h, T12h and T24h. Parameters evaluated included heart and respiratory rate, body temperature, height of the head in relation to the ground, eye and lip drop, intestinal motility and ataxia. Besides, latency to urinate and defecate, and the percentage of animals which urinated or defecated were observed. There were no differences in the parameters, except in intestinal motility that was reduced from T30 to T2h in GM. So, we concluded that intravenous application of morphine (0.1mg/Kg) was safe and did not promot clinical or behavioral changes in Arabian Horses.
Soil spatial variability and the estimation of the irrigation water depth
Reichardt Klaus,Silva José Carlos de Araújo,Bassoi Luis Henrique,Timm Luís Carlos
Scientia Agricola , 2001,
Abstract: The effects of soil water spatial variability previous to irrigation and of the field capacity on the estimation of irrigation water depth are evaluated. The experiment consisted of a common bean (Phaseolus vulgaris L.) crop established on a Kandiudalfic Eutrudox of Piracicaba, SP, Brazil, irrigated by central pivot, in which soil water contents were evaluated with a depth neutron gauge, in a grid of 20x4 points with lag of 0.5 m. In a given situation, the 80 calculated irrigation water depths presented a coefficient of variation of 29.3%, with an average water value of 18 mm, maximum of 41mm and minimum of 9 mm. It is concluded that the only practical way of irrigation is the use of an average water depth, due to the inherent variability of the soil, and that the search for better field capacity values does not imply in better water depth estimates.
Características agron micas do capim "Brachiaria decumbens" submetido a intensidades e frequências de corte e aduba o nitrogenada Agronomic characteristics of “Brachiaria decumbens” under intensities and frequencies of cut and fertilization
Thiago Carvalho da Silva,Carlos Henrique Oliveira Macedo,Silvaney dos Santos Araújo,Ricardo Martins Araújo Pinho
Revista Brasileira de Saúde e Produ??o Animal , 2011,
Abstract: Objetivou-se avaliar as características agron micas do Brachiaria decumbens Stapf. submetido a intensidades e frequências de corte e aduba o nitrogenada, nas condi es do Brejo paraibano. Foi utilizado delineamento em blocos casualizados em esquemas de parcelas subdivididas, tendo nas parcelas combina es entre duas alturas de corte (40 e 50cm) e duas alturas de resíduo (15 e 25cm), e nas subparcelas a aduba o nitrogenada (com ou sem nitrogênio-N), com quatro repeti es. As variáveis analisadas foram: produ o de matéria verde e seca total e por corte; percentual de folhas, colmo e material morto na matéria seca; rela o lamina/colmo; taxas de acúmulo de folha, colmo, material morto e acúmulo líquido e de matéria seca total. A produ o de matéria seca total apresentou diferen a entre as intensidades de corte, sendo que na altura de corte 40cm e intensidade de corte com resíduo 25cm (40-25), com aduba o, houve um incremento de 42% em rela o à intensidade de corte 40-15. O percentual médio de folhas na MS foi maior para a altura de corte 50cm em rela o à altura de corte de 40cm. A aduba o aumentou em 84% a taxa de acúmulo líquido de matéria seca. Conclui-se que a aduba o nitrogenada combinada com a altura de corte de 40cm e resíduo de 25cm eleva o percentual de folhas das plantas, aumenta a velocidade de crescimento e diminui o tempo entre intervalos de corte ou pastejo. The objective of this experiment was to evaluate agronomic characteristics of Brachiaria decumbens Stapf. under intensities and frequencies of cut and nitrogen fertilization, in Areia-PB. An completely randomized block design was used, with four replicates, in a split plot scheme, where in the plot was a combination of two heights of cut (40 e 50cm) and two stubble heights (15 e 25cm) and the splited plot (with or without nitrogen fertilization). The Variables total and by cutting fresh matter and dry matter production; leaf, steam and death of dry matter percentage; leaf/steam ratio; leaf, steam, death matter and net dry matter accumulation rates were evaluated. Total dry matter production presented differences observed among cutting intensities, and the 25/40 showed an increment of 42% in relation to 40-15 cutting intensity. Leaf percentage was higher in treatments with height of cut of 50cm in relation to treatments with 40cm height of cut. Fertilization increased net dry matter accumulation rate in 84%. Nitrogen fertilization increases productivity of Brachiaria and when combined with the height of residue 25 and 40cm cutting increases the growth rate and decreases the time int
Influence of the mechanical loading history on the stress assisted two way memory effect in a Ti-Ni-Cu alloy
Araújo, Carlos José de;Gonzalez, Cézar Henrique;Morin, Michel;Guénin, Gérard;
Materials Research , 2001, DOI: 10.1590/S1516-14392001000300007
Abstract: in this work, several tests of thermal cycling under constant load are carried out on ti-45.0ni-5.0cu (at%) shape memory wires. the properties related to the stress assisted two way memory effect (satwme) of the material are investigated as a function of the mechanical loading history for the same temperature range during cooling and heating. for this reason, two thermomechanical tests have been employed: tests i, where one sample is used for just one constant stress level test and tests ii, where only one sample is employed for several constant stress level tests in sequence. the results obtained show that for loads applied below 150 mpa, the transformation temperatures and the thermal hysteresis associated with the transformation of the material are the same during the two tests. however, above 150 mpa in tests ii transformation temperatures and thermal hysteresis are respectively higher and smaller than the ones obtained in tests i. on the other hand, transformation temperatures obtained from both tests are in good agreement with the ones measured by dsc and electrical resistance measurements. it is also observed that the satwme obtained by tests ii is smaller than the one measured during tests i. it is shown that these different behaviors are induced by accumulation of plastic strain in the sample during tests ii.
Inquérito epidemiológico sobre hipertens?o arterial em Volta Redonda - RJ
Klein, Carlos Henrique;Araújo, José Wellington Gomes de;Leal, Maria do Carmo;
Cadernos de Saúde Pública , 1985, DOI: 10.1590/S0102-311X1985000100008
Abstract: at the end of the year 1979 a cross-seccional study on arterial hypertension was carried out in the town of volta redonda. households, as epidemiologic units, were randomically sorted. 650 adults from 20 to 74 years old were examined at home. the current paper describes in detail the methodology used for collecting the information and some of the results are presented. the mean systolic and diastolic pressures were respectively 122.4 ± 0.9 and 70.6 ± 0.7mmhg. the prevalence of hypertension according to the who criteria (systolic > 160 and/or diastolic > 95 mmhg) was 10.1 ± 1.3 per cent, considering the effect of the household cluster sampling design. in volta redonda higher prevalence of arterial hypertension were found in young and middle-age groups. this probably explains the high mortality ratio by diseases of the cardiovascular system found in the above age groups.
Agricultural crops in the diet of bearded capuchin monkeys, Cebus libidinosus Spix (Primates: Cebidae), in forest fragments in southeast Brazil
Freitas, Carlos Henrique de;Setz, Eleonore Z. F.;Araújo, Alba R. B.;Gobbi, Nivar;
Revista Brasileira de Zoologia , 2008, DOI: 10.1590/S0101-81752008000100006
Abstract: capuchin monkeys occupy a wide range of habitats where they feed on fruits, arthropods, and vertebrates. their large home ranges (80-900 ha) suggest that living in forest fragments may challenge their adaptability. we identified and quantified the main food items of cebus libidinosus spix, 1823 in forests fragments (100 ha) in southeastern brazil. we recorded the feeding activities of two groups using scan sampling over a 13-month period. the diet was composed of fruits, crops, animal prey, seeds, plant matter and undetermined. fruit was eaten more in the wet season than in the dry season, and maize and sugar cane consumption peaked in the early dry season. the proportion of fruit in the diet was positively correlated with fruiting intensity of zoochorous trees. the plant diet included 54 species, with maize, rhamnidium elaeocarpus, acrocomia aculeata, guazuma ulmifolia and cariniana, being most important. although dietary composition and diversity were similar to capuchins in larger forest fragments, feeding on crops attained higher percentages at times when zoochorous fruit production was low in fragments.
Epidemia de leishmaniose visceral no Estado do Piauí, Brasil, 1980-1986
Costa,Carlos Henrique N.; Pereira,Humberto F.; Araújo,Maurílio V.;
Revista de Saúde Pública , 1990, DOI: 10.1590/S0034-89101990000500003
Abstract: the kala-azar epidemic in the state of piauí 1980-1986 is analyzed on the basis of the data collected by sucam piauí. the outbreak began in towns of central and northern piauí in 1980. in contrast what has happened in endemic periods in which the disease occurred in areas of higher altitude and semi-arid climate, the epidemic developed in humid tropical river valleys in rural zones. the epidemic was worst in the towns. the state capital, teresina, hit in 1981, reached the epidemic peak in 1984 and accounted, for more than 60% of the 1,509 cases in the state. the epidemic was not substantial in those regions sprayed to combat malaria and chagas' disease. while control in teresina was attempted through intensive use of insecticides, the outbreak gave way spontaneously in rural areas. neither the number of cases nor the phlebotomine population of teresina presented significant seasonal variations but were moderately correlated. there was greater prevalence in children of 5 years of age or less, especially during the peak epidemic years, and much lesser prevalence in adults over 40 years of age. the geographical distribution of the epidemic process and its beginning, concommitant with a prolonged drought with its accompanying migration of people and domestic animals from endemic to epidemic regions, suggests that migration unleashed the epidemic. the fact that the epidemic process spontaneously relinquished its hold in areas where no control was attempted, indicates that the end of the epidemic cannot be attributed solely to measures of control. an analysis of the coefficients of specific incidence within age groups sparks the discussion about the possibility that progressive reduction of susceptibility (determined by the great number of assymptomatic infections as well as by long-lasting immunity) contributed to the extinction of the epidemic.
Matura o e dormência em diásporos de carrapicho-de-carneiro (Acanthospermum hispidum DC. - Asteraceae) Maturation and dormancy in Acanthospermum hispidum DC. - Asteraceae diaspores
Edson Ferreira Duarte,Jaylson Araújo dos Santos,Jailson de Souza Peixoto,Carlos Henrique Barbosa Santos
Revista Brasileira de Sementes , 2012, DOI: 10.1590/s0101-31222012000300011
Abstract: Objetivou-se acompanhar a matura o dos diásporos de carrapicho-de-carneiro (Acanthospermum hispidum DC.) e avaliar métodos de supera o da dormência. Diásporos com 7, 14, 21, 28 e 35 dias após antese (DAA) obtidos em plantas ocorrentes na área experimental da Universidade Federal do Rec ncavo da Bahia, Cruz das Almas, BA, Brasil. Foram avaliadas as dimens es dos diásporos de cada estádio, seu teor de água e de massa seca. Fez-se um teste de emergência de plantulas, a 25 oC, sob 16 horas de luz em areia lavada. Avaliou-se semanalmente a emiss o da parte aérea, determinando o índice de velocidade de emergência (IVE) e a porcentagem de diásporos mortos e dormentes. Em outro experimento, utilizaram-se tratamentos para supera o da dormência: escarifica o com lixa; lavagem em água corrente por 24 horas; estratifica o a 10 oC por sete dias; GA3 a 4000 mg L-1; sementes intactas. Ocorreram incrementos na largura e na massa da matéria seca até 21 DAA, o comprimento aumentou até 35 DAA. A máxima emergência de plantulas (45%) e o máximo IVE (3,4) ocorreram aos 21 DAA, quando ocorreu a maturidade fisiológica; nos estádios seguintes verificou-se aumento da dormência. A. hispidum dispersa sementes fisiologicamente dormentes e a dormência é superada com GA3. The objective of the study was to evaluate the maturation of A. hispidum diaspores and methods for overcoming dormancy. Diaspores were obtained 7, 14, 21, 28 and 35 days after anthesis (DAA) from plants in the experimental area of the Universidade Federal do Rec ncavo Bahiano, Cruz das Almas, Bahia, Brazil. Diaspore dimensions, water content and dry weight were evaluated. Emergence was tested at 25°C with 16 hours of light in washed sand. Emergence was monitored weekly, counting the aerial part of the seedlings above the substrate, and determining the germination velocity emergence (GVE) and percentage of dead and dormant diaspores. In another experiment, the treatments for overcoming dormancy were: scarification with sandpaper; washing in running water for 24 h; stratification at 10 oC for 7 days; GA3 4000 mg L-1; and intact seeds. The dry weight increased until 21 days and the length increased until 35 DAA. The maximum emergence (45%) and GVE (3.4) of the diaspores was at 21 DAA when there was physiological maturity. Dormancy increased in the subsequent stages. A. hispidum disperses physiologically dormant seeds and dormancy can be overcome with GA3.
Determinants of migration in Brazil: regional polarization and poverty traps
André Braz Golgher,Carlos Henrique Rosa,Ari Francisco de Araújo Junior
Papeles de población , 2008,
Abstract: En el presente estudio, usamos el modelo neoclásico de capital humano como base teórica para los análisis de los determinantes de la migración en Brasil. Para esto empíricamente, aplicamos una regresión múltiple del macro modelo de migración, basados en el modelo gravitacional y en la distribución de Poisson. En el modelo empírico, el número de migrantes entre las meso-regiones brasile as fue la variable de respuesta, y los aspectos socioeconómicos y criminalísticas regionales y los modelos geográficos fueron las variables explicativas. La influencia de la distancia en el proceso migratorio, así como el poder de la polarización regional fueron analizados por centro urbano. Los determinantes de la migración al aplicarse a migrantes de diferentes estratos de ingresos mostraron evidencia de la existencia de trampas de pobreza en la Región Noreste de Brasil, el área más pobre del país.
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