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Search Results: 1 - 10 of 186336 matches for " Souza Elias Fernandes de "
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Express?o sexual do mamoeiro sob diferentes laminas de irriga??o na Regi?o Norte Fluminense
Almeida, Frederico Terra de;Marinho, Cláudia Sales;Souza, Elias Fernandes de;Grippa, Sidney;
Revista Brasileira de Fruticultura , 2003, DOI: 10.1590/S0100-29452003000300005
Abstract: imperfect flowers occurrence in hermaphrodite plants of papaya tree is related to genetic causes, which are affected by environmental factors. high humidity conditions as well as high concentration of water and nitrogen in the soil tend to change the sex of the hermaphrodite flowers producing deformed fruits. the intent of this work was studying the production behavior of flowers of hermaphrodite types of the papaya tree 'improved sunrise solo 72/12' affected by the application of different depth of water in the north region of rio de janeiro, brazil. the experiment was carried out under randomized block design with seven treatments (depth irrigation) three repetitions and five useful plants in each experimental plot. the water was applied by microsprinkler irrigation system. the treatments applied were seven percentages of the reference evapotranspiration (t1 = 0; t2 = 40; t3 = 80; t4 = 120; t5 = 160; t6 = 200 and t7 = 240% of eto). after the flower emergence the numbers of sterile flowers, carpelloid and pentandric fruits were evaluated monthly. the sterile flowers occurrence was responsible for the largest losses in the production and it was larger in the summer and become worse with the water deficit. the adoption of irrigation amount of 120% of eto, minimized the losses caused by production of imperfect flowers.
Viabilidade econ mica e risco do cultivo de mam o em fun o da lamina de irriga o e doses de sulfato de am nio = Economic viability and cultivation risk of papaya in function of irrigation depth and ammonium sulfate
Guilherme Bastos Lyra,Niraldo José Ponciano,Paulo Marcelo de Souza,Elias Fernandes de Sousa
Acta Scientiarum : Agronomy , 2010,
Abstract: Objetivou-se determinar a viabilidade econ mica e o risco do cultivo do mam o na Regi o Norte do Espírito Santo e comparar os índices econ micos com dados experimentais de irriga o e doses de sulfato de am nio. O experimento foi conduzido na Fazenda Caliman Agrícola S.A., em Linhares, Estado do Espírito Santo. Foram avaliadas, separadamente, duas variedades de mam o, Golden e UENF Caliman 01, em cinco níveis de irriga o (50, 70, 90, 110 e 130% da evapotranspira o de referência), combinados com quatro doses de sulfato de am nio (90, 188, 288 e 377 kg ha-1 mês-1). Na determina o dos riscos e índices da cultura do mam o utilizou-se o cálculo do Valor Presente Líquido, a Taxa Interna de Retorno, a análise de sensibilidade e o método de Monte Carlo. Os tratamentos de irriga o apresentaram diferen as estatísticas significativas (p < 0,05) emrela o à produtividade. Contudo, as doses de sulfato de am nio e suas intera es com as laminas aplicadas n o apresentaram diferen as significativas (p < 0,05) para a produtividade. Mediante a simula o de Monte Carlo (simula o triangular), a probabilidade de obterValor Presente Líquido negativo é de 63,2 e 81,4%, para Golden e UENF Caliman 01, respectivamente. The aim of this paper was to determine the economic viability and cultivation risk in northern Espírito Santo State and compare theeconomic indices with experimental irrigation data and ammonium sulfate doses. The experiment was carried out at Calima Agricola S.A. farm, in Linhares, ES. Two varieties were evaluated separately, Golden and UENF Caliman 01, in five irrigation levels, combined withfour ammonium sulfate doses. The determination of indices and risks of papaya cultivation utilized the calculation of net present value, internal rate of return, sensitivity analysis and Monte Carlo method. The irrigation treatments showed significant statistical differences (p < 0.05) in relation to productivity. The ammonium sulfate and its interactions with applied irrigation depths did not present significant differences (p < 0.05) for the same variable. By means of a Monte Carlo simulation (triangular simulation), the probability of obtaining negative net present value is 63.2 and 81.4% for Golden and UENF Caliman 01, respectively.
Express o sexual do mamoeiro sob diferentes laminas de irriga o na Regi o Norte Fluminense
Almeida Frederico Terra de,Marinho Cláudia Sales,Souza Elias Fernandes de,Grippa Sidney
Revista Brasileira de Fruticultura , 2003,
Abstract: O aparecimento de flores imperfeitas nas plantas hermafroditas do mamoeiro está relacionado a fatores genéticos, os quais s o afetados pelo ambiente. Condi es de alta umidade, altos teores de nitrogênio e de água no solo tendem a mudar o sexo das flores hermafroditas, produzindo frutos deformados. O objetivo deste trabalho foi estudar o comportamento do mamoeiro 'Improved Sunrise Solo 72/12', na produ o dos diferentes tipos de flores hermafroditas, em rela o à aplica o de diferentes laminas de água, na regi o Norte Fluminense. O experimento foi conduzido sob delineamento em blocos casualizados com sete tratamentos (laminas de irriga o), três repeti es e cinco plantas úteis em cada parcela experimental. Foi utilizado um sistema de irriga o por microaspers o para aplica o de água. Os níveis de irriga o aplicados foram sete percentagens da evapotranspira o de referência (T1 = 0; T2 = 40; T3 = 80; T4 = 120; T5 = 160; T6 = 200 e T7 = 240 % da ET0). Após o início do florescimento foram avaliados, mensalmente, os números de flores estéreis, de frutos carpelóides e pentandricos. A ocorrência de flores estéreis foi responsável pelas maiores perdas na produ o e foi maior no ver o e agravada pelo déficit hídrico. A ado o de uma lamina em torno de 120% da ETo minimizou as perdas pela produ o de flores imperfeitas.
Red blood cell transfusion does not increase oxygen consumption in critically ill septic patients
Constantino J Fernandes, Nelson Akamine, Fernando VC De Marco, José AM De Souza, Sofia Lagudis, Elias Knobel
Critical Care , 2001, DOI: 10.1186/cc1070
Abstract: This study evaluates the hemodynamic and oxygen utilization effects of hemoglobin infusion on critically ill septic patients.Fifteen septic patients undergoing mechanical ventilation whose hemoglobin was <10 g% were eligible. Ten patients (APACHE II: 25.5 ± 7.6) received an infusion of 1 unit of packed RBC over 1 h while sedated and paralyzed. The remaining five control patients (APACHE II: 24.3 ± 6.0) received a 5% albumin solution (500 ml) over 1 h. Hemodynamic data, gastric tonometry and calorimetry were obtained prior to and immediately after RBC transfusion or 5% albumin infusion.Transfusion of RBC was associated with an improvement in left ventricular systolic work index (38.6 ± 12.6 to 41.1 ± 13.0 g/min/m2; P = 0.04). In the control group there was no significant change in the left ventricular systolic work index (37.2 ± 14.3 to 42.2 ± 18.9 g/min/m2). An increase in pulmonary vascular resistance index (203 ± 58 to 238 ± 49 dyne/cm5/m2; P = 0.04) was also observed, while no change was produced by colloid infusion (237 ± 87.8 to 226.4 ± 57.8 dyne/cm5/m2). Oxygen utilization did not increase either by Fick equation or by indirect calorimetry in either group. Gastric intramucosal pH increased only in the control group but did not reach statistical significance.Hemoglobin increase does not improve either global or regional oxygen utilization in anemic septic patients. Furthermore, RBC transfusion may hamper right ventricular ejection by increasing the pulmonary vascular resistance index.The treatment of septic patients emphasizes the optimization of oxygen utilization by tissues through maintenance of an adequate oxygen supply, minimizing the cellular dysfunction progression [1]. Blood cell transfusion is frequently used with the intention of augmenting arterial oxygen content and its utilization by the tissues [2]. Blood cell transfusion efficacy in septic patients is still not convincingly demonstrated and previous studies report conflicting results. When oxygen
Viabilidade econ?mica e risco do cultivo de mam?o em fun??o da lamina de irriga??o e doses de sulfato de am?nio
Lyra, Guilherme Bastos;Ponciano, Niraldo José;Souza, Paulo Marcelo de;Sousa, Elias Fernandes de;Lyra, Gustavo Bastos;
Acta Scientiarum. Agronomy , 2010, DOI: 10.4025/actasciagron.v32i3.2451
Abstract: the aim of this paper was to determine the economic viability and cultivation risk in northern espírito santo state and compare the economic indices with experimental irrigation data and ammonium sulfate doses. the experiment was carried out at calima agricola s.a. farm, in linhares, es. two varieties were evaluated separately, golden and uenf caliman 01, in five irrigation levels, combined with four ammonium sulfate doses. the determination of indices and risks of papaya cultivation utilized the calculation of net present value, internal rate of return, sensitivity analysis and monte carlo method. the irrigation treatments showed significant statistical differences (p < 0.05) in relation to productivity. the ammonium sulfate and its interactions with applied irrigation depths did not present significant differences (p < 0.05) for the same variable. by means of a monte carlo simulation (triangular simulation), the probability of obtaining negative net present value is 63.2 and 81.4% for golden and uenf caliman 01, respectively.
Erradica??o de escleródios de Sclerotium rolfsii em substratos tratados em coletores solares, em Campos dos Goytacazes-RJ
Martins, Marlon Vagner Valentim;Silveira, Silvaldo Felipe da;Carvalho, Almy Junior Cordeiro de;Souza, Elias Fernandes de;
Revista Brasileira de Fruticultura , 2003, DOI: 10.1590/S0100-29452003000300015
Abstract: although there is a risk of soil being contaminated with plant pathogen inocula its uses in the substrate composition is the most economical and useful practice for fruit propagation in general. in this work, looking for an alternative method besides the methyl bromide fumigation for soil sterilization the efficiency of solar collector devices for substrate disinfestations in the elimination of s. rolfsii sclerotia was evaluated. the assays were realized in three dates: october 6th and 25th and december 13th of 2000. for evaluation of the sclerotia viability the sclerotia recovered from the soil treated in solar collector were sown in culture medium and submitted to the tetrazolium staining test (tetrazolium triphenil-chloride). the tetrazolium coloration was used to confirm if non-germinated sclerotia were really heat inactivated or if there was fungistase induction. in the first assay during a cloudy day, the maximum temperature reached in the substrate was 45oc and the germination of sclerotia was null and accompanied by 100% of bacteria colonization. in the two last dates of evaluation during sunny days the maximum temperatures in the substrate varied from 60 to 80oc and the sclerotia were 100% eradicated with only one day-treatment. the staining test with ttc confirmed that non-germinated sclerotia were heat inactivated by the absence of red color due to the dehydrogenase activity inhibition (enzymatic denaturation). it was concluded that even under sub-optimum conditions for substrate treatment in solar collector devices the long exposition to higher temperatures were enough to cause severe injuries in the pathogen sclerotia which became vulnerable to microbial antagonism. the solar collector devices were efficient for substrate disinfestations and for the control of s. rolfsii in the evaluated conditions.
Erradica o de escleródios de Sclerotium rolfsii em substratos tratados em coletores solares, em Campos dos Goytacazes-RJ
Martins Marlon Vagner Valentim,Silveira Silvaldo Felipe da,Carvalho Almy Junior Cordeiro de,Souza Elias Fernandes de
Revista Brasileira de Fruticultura , 2003,
Abstract: Na produ o de mudas de fruteiras em geral, o uso de solo na composi o de substratos ainda é a prática mais econ mica e utilizada pelos agricultores, embora haja o risco deste conter inóculos de fitopatógenos. Visando uma alternativa à esteriliza o química com brometo de metila, neste trabalho avaliou-se a eficiência de coletores solares para a desinfesta o de substratos contendo solo, na erradica o de escleródios de S. rolfsii, em Campos dos Goytacazes-RJ. Os ensaios foram realizados nos dias: 6 e 25 de outubro e 13 de dezembro de 2000. Os escleródios recuperados dos substratos tratados nos coletores solares foram plaqueados em meio de cultura e submetidos à colora o em solu o de cloreto de trifenil-tetrazólio (TCT). A colora o em TCT foi utilizada para comprovar se os escleródios n o-germinados em meio de cultura foram realmente inativados pelo calor ou se houve indu o de fungistase. No primeiro ensaio, em dia nublado, o máximo de temperatura alcan ado no substrato foi de 45oC e a germina o dos escleródios foi nula e acompanhada de 100% de coloniza o por bactérias. Nas duas últimas datas de avalia o, em dias ensolarados, as temperaturas máximas alcan adas nos substratos variaram de 60 a 80oC e os escleródios foram totalmente erradicados, em apenas um dia de tratamento. Nos três ensaios, os escleródios tratados n o apresentaram atividade de desidrogenase, evidenciada pela falta de colora o avermelhada interna na presen a de TCT, corroborando a inativa o pelo calor. Conclui-se que mesmo em condi es sub-ótimas para tratamento de substratos em coletores solares, a exposi o prolongada a temperaturas elevadas foi suficientemente danosa aos escleródios do patógeno, tornando-os mais vulneráveis ao antagonismo microbiano. Os coletores solares foram eficientes na desinfesta o dos substratos, visando o controle de S. rolfsii, nas condi es avaliadas.
Influência do cromo no desempenho, na qualidade da carne e no teor de lipídeos no plasma sanguíneo de frangos de corte
Souza, Luciana Maria Garcia de;Murakami, Alice Eiko;Fernandes, Jovanir Inês Müller;Guerra, Rafael Lachinski de Holanda;Martins, Elias Nunes;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000400016
Abstract: the aim of this work was to evaluate the effect of dietary chromium supplementation on performance, carcass yield, meat quality, cholesterol level on the breast and blood biochemical parameters on broilers. it was used a complete randomized experimental design with five levels of chromium tripicolinate (0, 150, 300, 450 and 600 μg/kg of chromium) and six replicates with 50 broilers per experimental unit. the use of chromium tripicolinate had no effect on the performance of broilers. the levels of chromium did not change the carcass yield neither the breast ph of the broilers at 42 days of age. at evaluation of dry matter composition, crude protein and ether extract of breast meal, only the percentage of ether extract was quadractly affected by the dietary chromium level. chromium level of 218.2 μg reduced the ether extract percentage by 7.03 when compared to the lack of chromium. the addition of chromium in the diets did not influence the total cholesterol level in the breast meat but it did change the levels of hdl at 14 old, the vldl and triglicerides at 21 days old. the dietery suplementation of chromium did not influence the performance neither the carcass yield. levels of chromium ranging from 218.2 to 360.3 ì g affects fat meat and levels of blood lipids of broiler chickens.
Avalia??o da dissimilaridade genética em genótipos de bananeira (Musa spp.) via marcadores RAPD
Souza, Carolina Maria Palácios de;Viana, Alexandre Pio;Ferreira, Cláudia Fortes;Silva, Sebasti?o de Oliveira e;Carvalho, Almy Junior Cordeiro de;Berbert, Pedro Amorim;Sousa, Elias Fernandes de;
Revista Brasileira de Fruticultura , 2008, DOI: 10.1590/S0100-29452008000200026
Abstract: banana is a very important social and economic crop. the introduction of of banana cultivars was initiated through the plant genetics laboratory at uenf. cultivars from embrapa cassava and tropical fruits and western amazon were introduced. the objective of the present work was to analyze the genetic dissimilarity between 21 cultivars and obtain the correct identification of the possible genotypes introduced at uenf. the following genotypes were evaluated: fhia 18, prata an?, uenf 1526, pacovan, caipira, ma??, uenf 1527, nanic?o, thap maeo, uenf 1528, uenf 1529, grande naine, ambrósia, bucaneiro, calipso, pv42-68, pv42-85, pv42-142, st12-31, calcutta and bb da fran?a. the genetic dissimilarity was carried out using rapd molecular markers. thirty-one primers were used, generating a total of 94 bands. the rapd molecular markers were capable to accurately reveal the existence of genetics diversity among the 21 banana genotypes. for data interpretation, the jaccard index was used. based on cluster analysis upgma and the tocher method, the dissimilarity could be observed by the presence of similar and dissimilar genotypes.
A Study of Human Thermal Comfort, Ozone and Respiratory Diseases in Children  [PDF]
Amaury de Souza, Flavio Aristone, Luciane Fernandes
Atmospheric and Climate Sciences (ACS) , 2014, DOI: 10.4236/acs.2014.44060
Abstract: Objective: To assess the impact of air pollution and ozone on morbidity due to respiratory diseases among children from 2005 to 2008. Methods: The database was composed by daily reports on visits by children with respiratory diseases in health units of the Unified Health System (SUS) in the municipality of Campo Grande, MS, Brazil, by daily levels of ozone concentration measured by the Department of Physics, Federal University of Mato Grosso do Sul, and by daily measurements of temperature and relative humidity provided by the Agricultural Research Corporation-EMBRAPA Gado de Corte-MS. The relationship between respiratory diseases and ozone concentration was investigated through Generalized Linear Models (GLM) using the multiple Poisson regression model. The significance level α = 5% was adopted for all tests. Results: It was observed that the association between ozone (lagged by three time-steps) and attendance for respiratory diseases in children was statistically significant. The bio-meteorological variable Wind-adjusted Effective Temperature (lagged by four time-steps) was also significantly associated with diseases. Conclusions: The results suggest that the surface ozone concentration promotes adverse effects on children’s health even when pollutant levels are below the amounts permitted by law.
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