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Search Results: 1 - 10 of 216608 matches for " Castro Christian Roberto de Carvalho "
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Perdas de forragem em capim-Tanzania (Panicum maximum Jacq cv. Tanzania-1) manejado sob diferentes alturas sob pastejo
Cecato Ulysses,Castro Christian Roberto de Carvalho,Canto Marcos Weber do,Peternelli Maurício
Revista Brasileira de Zootecnia , 2001,
Abstract: RESUMO - O experimento foi conduzido com objetivo de avaliar as perdas de forragem e a acumula o de liteira em uma pastagem de capim-Tanzania (Panicum maximum Jacq cv. Tanzania-1 ) manejada sob diferentes alturas. Os níveis de altura (tratamentos) estudados foram: 29,8; 32,0; 47,1; 51,5; 57,9; 62,7; 72,6 e 80,0 cm, em um delineamento completamente casualizado e com duas repeti es. As taxas de acúmulo e acumula o de liteira e as perdas de forragem foram iguais em todas as alturas. A porcentagem de forragem senescente foi influenciada de forma quadrática pelos níveis de altura. Os resultados indicam que foram altos os níveis de acumula o de liteira e as perdas de forragem, em média, 38,9 kg/ha/dia de MS e 2179 kg/ha de MS, respectivamente. Devido à possibilidade de se reduzirem a persistência da pastagem e a modifica o da estrutura das plantas, recomenda-se n o utilizar pastagens de capim-Tanzania em alturas próximas ou iguais a 20 e 80 cm, sob lota es contínuas.
Teores de carboidratos n?o-estruturais, nitrogênio total e peso de raízes em Coastcross-1 (Cynodon dactylon (L.) Pers) pastejado por ovinos
Cecato, Ulysses;Cano, Clovenilson Cláudio Perissato;Bortolo, Marcelino;Herling, Valdo Rodrigues;Canto, Marcos Weber do;Castro, Christian Roberto de Carvalho;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000300006
Abstract: the experiment was conducted from october 1997 to april 1998, to evaluate the nonstructural carbohydrates (sc), total nitrogen (tn) and roots weight, of the pasture of coastcross - 1 (cynodon dactylon (l.) pers), under four levels of dry matter residue (dmr: 1978, 2130, 2545 and 3857 kg dm/ha), under continuous stocking (put and take). a completely randomized design, with two replications, was used. sc and tn contents were analysed on roots and stem base according to dry matter residue levels (dmr) and time (days) of sampling. sc in the roots and percentage of tn in the stem base were not influenced by levels of dmr and sampling period. the highest sc in the stem base was found in the residue of 2545 kg dm/ha, and was observed an adaptation to the pasture condictions as time progressed. sc was higher in the stem base compared with the roots. tn percentage in the roots decreased until the leavel of 2545 kg dm/ha. dry matter production of roots increased as dmr increased, but declined as the sampling period progressed.
Perdas de forragem em capim-Tanzania (Panicum maximum Jacq cv. Tanzania-1) manejado sob diferentes alturas sob pastejo
Cecato, Ulysses;Castro, Christian Roberto de Carvalho;Canto, Marcos Weber do;Peternelli, Maurício;Almeida Júnior, Josmar;Jobim, Clóves Cabreira;Cano, Clovenilson Claudio Perissato;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000200001
Abstract: the experiment was conducted to evaluate, the forage losses and litter accumulation, in a pasture of tanzania grass (panicum maximun jacq cv. tanzania) managed in different sward height levels. the studied levels of sward heights (treatments) were: 29.8, 32.0, 47.1, 51.5, 57.9, 62.7, 72.6 and 80.0 cm, in a completely randomized design and two replications. the litter accumulation rate, litter accumulation and forage losses were similar in all heights. the percentage of senescent forage in the plant canopy was influenced on a quadratic way by the sward height levels. the results show that the litter accumulation and forage losses were high, with average dm of 38.9 kg/ha.day and 2179 kg/ha of dm, respectively. due to the possibility to reduce the pasture persistence and plant structure deteriorate, it is not recommended to utilize tanzania grass pastures, in levels sward height near or equal of 20 and 80 cm, under continuous stocking rate.
Desenvolvimento e análise de uma rede neural artificial para estimativa da erosividade da chuva para o Estado de S?o Paulo
Moreira, Michel Castro;Cecílio, Roberto Avelino;Pinto, Francisco de Assis de Carvalho;Pruski, Fernando Falco;
Revista Brasileira de Ciência do Solo , 2006, DOI: 10.1590/S0100-06832006000600016
Abstract: knowledge on rainfall erosivity (r) of particular sites is fundamental for soil loss estimation by the universal soil loss equation (usle) and therefore highly important in conservation planning. in order to obtain the r value estimates for places where it is unknown, an artificial neural network (ann) was developed for the state of s?o paulo, and its accuracy compared with the inverse distance weighted (idw) interpolation method. the developed ann presented a smaller mean relative error in the r estimation and a confidence index classified as "excellent", better than the idw. ann can therefore be used to estimate r values for soil use planning, management and conservation in s?o paulo state.
Controle interno da qualidade em citopatologia ginecológica: um estudo de 48.355 casos
Arcuri Roberto Alfonso,Cunha Katia Cilene Ferreira da,Alves Elizabeth de Carvalho,Castro Antonio Alexandre de
Jornal Brasileiro de Patologia e Medicina Laboratorial , 2002,
Abstract: Todos os sistemas de avalia o de desempenho em laboratórios de citopatologia exigem um programa de controle interno da qualidade estabelecido e executado. O presente estudo tem por objetivo identificar os resultados do programa e o desempenho dos citotécnicos. Para tanto foram revistos os laudos, emitidos pelos citotécnicos e pelos citopatologistas, de 48.355 exames citopatológicos ginecológicos realizados durante 21 meses. Foram identificados 2.299 casos an malos encaminhados ao citopatologista, e confirmados 1.132; 2.973 casos de alto risco foram detectados e 998 an malos identificados. A revis o de 10% dos negativos representou 3.180 casos, com identifica o de 77 an malos. Os an malos totais detectados foram: 1.176 Ascus, 60 Agus, 819 Nic I/HPV, 85 Nic II, 33 Nic III, 11 carcinomas escamosos, 17 adenocarcinomas, cinco Vain I e um Vain III. Os Ascus/Agus foram 56%, e as outras les es representaram 44%. Os 4,56% de an malos detectados concordam com os valores propostos por Cardin (3% a 5%), pelo sistema Bethesda (4% a 6%) e por Kurman et al. (5%) (4, 6, 7). O citopatologista revisou 17,48% dos casos (n = 8.452). Dos 77 (0,16% do total) an malos identificados no reescrutínio, 59 (0,12%) foram Ascus, seis (0,01%) Agus e 12 (0,02%) Nic I. O presente estudo mostra resultados do controle interno da qualidade desenvolvido em laboratório particular e fornece dados relevantes para o planejamento de um programa de preven o do cancer uterocervical.
Cidadania ou "estadania" na gest o pública brasileira? Citizenship or "stateship" in public management in Brazil?
Daniela Meirelles Andrade,Carolina Lescura de Carvalho Castro,José Roberto Pereira
Revista de Administra??o Pública , 2012, DOI: 10.1590/s0034-76122012000100009
Abstract: O processo de democratiza o brasileira ocorreu de uma forma bem diferente da vivenciada por outros países, como Estados Unidos da América e Fran a. Nesse sentido, o objetivo deste artigo teórico é apresentar os elementos centrais sobre democracia e cidadania e demonstrar como a forma o histórica do Estado brasileiro impulsionou o fortalecimento de uma "estadania" nacional em detrimento da cidadania. Demonstrou-se que a forma o do Estado brasileiro é um entrave para a consolida o da cultura cívica, pois n o consegue desenvolver os direitos sociais, políticos e civis como apresentados por Marshall. Assim, o que se percebe é que o exercício da democracia n o é uma tarefa fácil, porém, para uma na o evoluir em termos de participa o efetiva dos cidad os, os mesmos precisam participar do processo. No Brasil, nota-se prevalência de a es que conferem maior poder ao Estado, como responsável pela estrutura o e desenvolvimento da vida social. Portanto, prevalece em nossa na o a "estadania", visto a ausência de uma cultura cívica, cabendo aos atores n o estatais um papel de coadjuvantes no processo. Por outro lado, mudan as relacionadas à democratiza o mais efetiva do Estado e à democratiza o da própria democracia fazem-se necessárias. The democratization process in Brazil occurred in a manner quite different from that experienced by other countries like USA and France. In this sense, the objective of this theoretical essay is to present the core elements of democracy and citizenship, and demonstrate how the historic formation of the Brazilian state boosted the strength of a "stateship" at the expense of national citizenship. It was demonstrated that the formation of the Brazilian state is an obstacle to the consolidation of civic culture, because it can not develop social rights, political and civil as presented by Marshall. Thus, we can see is that the exercise of democracy is not an easy task, but for a nation to evolve in terms of effective participation of citizens, they have to participate in the process. In Brazil, there is prevalence of actions that give more power to the State as responsible for structuring and development of social life. So prevalent in our nation "stateship", since the absence of a civic culture, while the non-state actors a facilitating role in the process. Moreover, changes related to democratization more effective state and the democratization of democracy itself are necessary.
Determina??o de glicerol livre e total em amostras de biodiesel por método enzimático com detec??o colorimétrica
Valdez, Higor da Cal;Amado, Roberto Salgado;Souza, Flávia Carvalho de;D'Elia, Eliane;Vieira, Eduardo de Castro;
Química Nova , 2012, DOI: 10.1590/S0100-40422012000300028
Abstract: a method based on enzymatic activities was developed using three enzymes (glycerokinase, glycerol-3-phosphate oxidase and peroxidase) and colorimetric detection for the determination of glycerol in biodiesel. the enzymatic conversion of glycerol produces h2o2 that is eliminated by the action of peroxidase, an oxygen acceptor and 4- aminoantipirine, producing water and a colored compound, which was analyzed. this method showed good linear correlation coefficient (r = 0.9937) in the concentration range of 4.95 x 10-5 to 3.96 x 10-4% (w/w) and had experimental limits of detection and quantitation of 7.10 x 10-6 and 2.10 x 10-5% (w/w), respectively.
Nitric oxide monocyte production levels in patients with the hepatosplenic form of Scistosoma mansoni infection who underwent splenectomy, ligature of the left gastric vein and auto implantation of spleen tissue in the major omentum
Brandt Carlos Teixeira,Leite Carlos Roberto Carvalho,Manhaes-de-Castro Francisco Machado,Macedo érika Michelle Correia de
Acta Cirurgica Brasileira , 2006,
Abstract: PURPOSE: To measure the levels of NO production by monocytes in patients with the hepatosplenic form of schistosomiasis mansoni who underwent splenectomy, ligature of the left gastric vein and auto implantation of spleen tissue in the major omentum. METHODS: Four groups of volunteers were enrolled in the investigation: G1 - 12 patients with S. mansoni infection in its hepatosplenic form without any kind of treatment (SMH); G2 - 13 SMH patients who underwent medical treatment and portal hypertension decompression splenectomy and ligature of the left gastric vein (SMH/SLGV); G3 - 19 patients similar to the later group, but additionally received auto implantation of spleen morsels in the major omentum (SMH/SLGV/AI); and G4 - 15 individuals with no S. mansoni infection coming from the same geographical area and presenting similar socio economical status (CG). Nitrite production by monocytes was determined by a standard Griess reaction adapted to microplates. The results were presented by mean ? SD for each group. Significant differences in NO production by monocytes were determined by Tukey-Kramer multicomparisons test. Probability values of 0.05 were considered significant. RESULTS: Patients from G1 (SMH) showed lower level of NO production by monocytes (5.28 ? 1.28mmol/ml). Patients from G2 (SMH/SLGV) showed similar results (6.67 ? 0.44mmol/ml - q = 2.681 p > 0.05). Individuals of G4 (CG) showed higher level of NO production by monocytes (8.19 ? 2.74mmol/ml). Patients from G3 (SMH/SGLV/AI) showed similar NO production by PBMC as compared to individuals of G4 (CG) - (7.41 ? 1.65mmol/ml - q = 1.615 p > 0.05). The volunteers from G4 (CG) and G3 (SMH/SLGV/AI) showed significantly greater levels of NO production by monocytes as compared to those from G1 (SMH) - (q = 5.837 p < 0.01, and q = 4.285 p < 0.05). CONCLUSION: Collectively, the results point to a restoration of NO normal production by monocytes in SHM patients who underwent medical and surgical treatments, especially in those who had received auto implantation of spleen tissue in the major omentum after splenectomy and ligature of the left gastric vein. The data gives further support to the hypothesis that this additional procedure is important in the restoration of the immune response of these patients, since NO synthesis by the monocytes correlates with protective immunity against infection; thus, protecting them against overwhelming post splenectomy infection.
A GEST O PúBLICA E O REUNI: ENTRE O SOCIAL E O GERENCIAL
Diego César Terra de Andrade,Conrado Gomide de Castro,M?nica Carvalho Alves Cappelle,José Roberto Pereira
Revista da Universidade Vale do Rio Verde , 2011,
Abstract: With this article, aims to analyze the characteristics of the public management of higher education policy in force in Brazil, in terms of the Federal Institutions of Higher Education – IFES and the Support Program for the Restructuring and Expansion of Federal Universities – REUNI, and the restrictions consequences to a quality education. From there, was adopted, as a methodological resource, a review of the key characteristics of State Reform and documentary research of the points addressed in the Decree. 6096, workingmainly with data collected form official documents and sites of federal government. It was concluded that despite the large proportion of investment, hiring and the social discourse in this Decree, the reform in the higher education, taking place in the IFES, is guided by characteristics of macroeconomic policies in regard to the restructuring of production and the Reformation State in the same sense of what has been implemented in recentdecades in the country.
Aderência e atividade microbicida de monócitos em portadores de esquistossomose mans?nica na forma hepatoesplênica cirúrgica
Brandt, Carlos Teixeira;Leite, Carlos Roberto Carvalho;Manh?es-de-Castro, Raul;Brandt Filho, Carlos;Castro, Célia Maria Machado Barbosa de;
Acta Cirurgica Brasileira , 2003, DOI: 10.1590/S0102-86502003000200011
Abstract: surgical treatment in children suffering from schistosomissis mansoni includes splenectomy; ligature of left gastric vein and auto-implantation of spleen morsels into the greater omentum. the efficacy of this procedure may be responsible for the disappearance of overwhelming post-splenectomy infection (opsi), in this kind of patients. this condition may be assigned to the lowering of igm, circulating lymphocytes, properdin and to the absence of tutfsin, which may lead to the deficiency of mono-macrophage activity cells, responsible for bacteria adherence, phagocytosis and its destruction. purpose: to analyze the functional features of the monocytes from young patients, who underwent splenectomy, ligature of left gastric vein and auto-implantation of morsels of spleen tissue on the major omentum. these patients were cared for at - university hospital - "servi?o de cirurgia geral da crian?a, hospital das clínicas, ufpe", from 1991 to 2000. methods: it was analyzed the rates of monocytes in vitro adherence to the solid surface and the generation of o2- radical by the monocytes, stimulated with acetate miristate of phorbol (pma) and pma + tuftsin, in 3 groups. the 1st group (ai), constituted by 18 patients with schistosomiasis mansoni in the hepatosplenic form and treated with splenectomy, ligature of left gastric vein and auto-implantation of fragments of spleen tissue on the major omentum; the 2nd group (esp), formed by 09 patients with schistosomiasis mansoni in the hepatosplenic form who underwent azigo-portal disconnection with splenectomy and the 3rd one (ct) constituted by 12 voluntary teenagers from the same geographic area and with the same socio-economical conditions. results: there was no significant difference in the monocyte adherence rate among the 3 groups. with regard to the generation of o2- release, the monocytes of patients from ai group had a super oxide generation similar to that of individuals from ct group, and higher than the patients from esp gr
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