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Search Results: 1 - 10 of 180842 matches for " élvio Ant?nio de; "
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MORFOLOGICAL AND HISTOCHEMICAL OBSERVATIONS ON THE SALIVARY GLANDS OF THE ALLIGATOR Caiman latirostris OBSERVA ES MORFOLóGICAS E HISTOQUíMICAS SOBRE AS GL NDULAS SALIVARES DO JACARé Caiman latirostris (Crocodilia Reptilia)
Antniolvio Rabelo,Renato Antnio da Costa,Gilson Herbert de Faria
Pesquisa Agropecuária Tropical , 2007, DOI: 10.5216/pat.v22i1.2600
Abstract: Using histological and histochemical methods for glicoconjugates, the present work on the salivary glands of the alligator Caiman latirostris (Crocodilia Reptilia), was developed. On the bases of the results obtained, the authors believe that those glands are not well developed, appearing as unicellular structures goblet-like cells, in the stratified squamous epithelium of the oral cavity. Scattered glands alveolus without excretory tubules which extend directly with the epitelium were also present. By means of histochemical methods for glicoconjugates, it was possible to detect the glicoprotein and the sialic acid in the glandular formation of these animals. Empregando-se métodos histológicos e histoquímicos para glicoconjugados, desenvolveu-se um trabalho sobre glandulas salivares do jacaré Caiman latirostris. Com base nos resultados obtidos, constatou-se que estas glandulas s o pouco desenvolvidas, aparecendo como estruturas unicelulares, semelhantes às células caliciformes, incluídas no epitélio estratificado pavimentoso da cavidade oral. Observou-se, ainda, a presen a de esparsos alvéolos glandulares desprovidos de ductos excretores que continuam diretamente com o epitélio. Por meio de métodos histoquímicos para glicoconjugados, foi possível a detec o de glicoproteína e de ácido siálico nas forma es glandulares desses animais.
Análise espacial e de vizinhan?a no melhoramento genético de plantas
Costa, Janaina Ribeiro;Bueno Filho, Júlio Sílvio de Sousa;Ramalho, Magno Antnio Patto;
Pesquisa Agropecuária Brasileira , 2005, DOI: 10.1590/S0100-204X2005001100004
Abstract: three forms of spatial analysis were compared to the analysis of the normal gauss-markov model in genetical experiments, supposing progeny effects as random: moving averages on raw data (mm), moving averages on residual data (papadakis - ppd), and spatial analysis modelling with residual covariances (ae). the local control information was initially ignored to test the effectiveness of spatial analysis. thereafter, the different forms of spatial analysis were applied to the complete model, considering the local control of lattice design. the average values of proportions between estimates of variance components and of heritability were used as a discussion guide to determine the best form of analysis. results showed that ignoring the experimental design, using spatial information was not effective, in general. in average, mm and ppd improved the original model justified by design, in contrast to ae. ae, although ineffective, did not change variance component estimates and heritability. this property guarantees that the combination of random effects for progenies and ae does not violate the assumptions (some of these justified by the design). this is specially useful in large experiments, with a huge number of progenies.
AVALIA O DA PRODUTIVIDADE DAS SILAGENS DE GIRASSOL, MILHO, SORGO E MILHETO EM DIFERENTES ESPA AMENTOS
TEIXEIRA, Fabrício Antnio,AMIN, Willian Garofo,MELLO,lvio de Paula
Nucleus , 2009,
Abstract: The experimental work was conducted on the campus of FAFRAM, Faculty "Dr. Francisco Maeda", located in the municipality of Ituverava, SP, in the period from November 14, 2007 to February 12, 2008, aimingto evaluate the productivity of green matter on crops of sunflower, corn, millet and sorghum in different spacings, forsilage. The experimental design was a randomized blocks in a factorial 4 x 4 with two replications. Each plot wasformed by three meters, with spacing of 0,50, 0,60, 0,70 and 0,80 meters. The results were significant for the weightof the stem, weight of the chapter and total weight of green matter (PTMV) in sunflower cultivation. For the weightof the sheet was a significant difference for corn. In spacing of 0,60, 0,70 and 0,80 meters, the weights of Stockholm,ear, panicle and PTMV not have significant differences. For the weight of leaf, the spacing of 0,80 provided betteraverage. As the weight of the stem on crops of sunflower, millet, maize and sorghum in the spacing of 0,50, 0,60,0,70 and 0,80 m, obtained significant results in the four spacing the culture of sunflower registering 28.166,66 kg,31.526,51 kg, 43.450,20 kg and 39.062,49 kg respectively. It was concluded that the total production of green massfor the cultivation of sunflower, millet and corn was higher with the spacing of 0,80 meters, while the cultivation ofsorghum production was higher with the spacing of 0,60 meters.O trabalho experimental foi conduzido no Campus da FAFRAM, Faculdade “Dr. Francisco Maeda”,localizada no município de Ituverava, SP, no período de 14 de novembro de 2007 a 12 de fevereiro de 2008, com oobjetivo de avaliar a produtividade de matéria verde nas culturas de girassol, milho, milheto e sorgo em diferentesespa amentos, para silagem. O delineamento experimental foi o de blocos ao acaso em um esquema fatorial 4 x 4com duas repeti es. Cada parcela foi constituída por três metros lineares, com espa amentos de 0,50, 0,60, 0,70 e0,80 metros. Os resultados foram significativos para o peso do colmo, peso do capítulo e peso total de matéria verde(PTMV) na cultura do girassol. Já para o peso da folha observou-se diferen a significativa para a cultura do milho.Nos espa amentos de 0,60, 0,70 e 0,80 metros, os pesos de colmo, espiga, panícula e PTMV n o apresentamdiferen as significativas. Já para o peso de folha, o espa amento de 0,80 proporcionou melhor média. Quanto aopeso do colmo nas culturas de girassol, milheto, milho e sorgo nos espa amentos de 0,50, 0,60, 0,70 e 0,80 m,obtiveram resultados significativos nos quatro espa amentos a cultura do girassol
Cardiocirculatory changes in hemorrhagic shock induced in pigs submitted to three distinct therapeutic methods
Abreu, Gilberto Fernandes Silva de;Coelho, Antnio Roberto Barros;Aguiar, José Lamartine de Andrade;Moura Filho,lvio Amorim;
Acta Cirurgica Brasileira , 2010, DOI: 10.1590/S0102-86502010000100025
Abstract: purpose: to evaluate and compare the response of pigs submitted to hemorrhagic shock and treated using three different strategies. methods: thirty-five dalland pigs were divided into four groups: control; bleeding; saline and saline + red cell concentrate. parameters evaluated: heart rate (hr), mean arterial blood pressure (map) and central vein pressure (cvp).hemorrhagic shock was induced by removing (624.25±64.55), (619.30±44.94) and (664.23±39.96) ml of blood respectively, with the following treatment: bleeding group - zero volume replacement; saline group - replacement with 676 ml of 0.9% saline solution; saline + red cell concentrate group - replacement with 440 ml of 0.9% saline solution + 291 ml of red cell concentrate. the treatment was evaluated after 10 (t3), 30 (t4), 45 (t5) and 60 (t6) minutes. results: hr: no statistically significant difference was found between the bleeding and saline [p=1.000], bleeding and saline + red cell concentrate [p=1.000], and saline and saline + red cell concentrate [p=0.721] groups. map; significant differences were found between all the groups studied. cvp: no significant difference was found between the groups. conclusion: non-replacement and euvolemic resuscitation maintained a satisfactory hemodynamic pattern in controlled severe hemorrhagic shock in swine. the euvolemic replacement strategies exceeded the limit values of map for rebleeding.
Resistência química de vitro-ceramicos pertencentes a sistemas Li2O-ZrO2-BaO-SiO2 frente ao tratamento com solu??es ácidas e básicas
Campos, Silvia Denofre de;Espíndola, Cláudio;Silveira, Cristian Berto da;Campos, élvio Antnio de;
Química Nova , 2002, DOI: 10.1590/S0100-40422002000200003
Abstract: the chemical durability of the li2o-zro2-bao-sio2 system was examined by determination of the vickers hardness. the dependence of hardness and of the chemical resistance with bao addition was investigated. the experimental results indicate that the hardness increases with the bao content. the samples surface's morphology submitted to the chemical treatment in acidic (h2so4) and basic (koh) solution was accompanied by scanning electron microscopy. the chemical durability of the materials with bao showed better than the glass ceramic without this content. these materials treated with h2so4 solution showed a preferential attack to the silica rich sites.
Resistência química de vitro-ceramicos pertencentes a sistemas Li2O-ZrO2-BaO-SiO2 frente ao tratamento com solu es ácidas e básicas
Campos Silvia Denofre de,Espíndola Cláudio,Silveira Cristian Berto da,Campos élvio Antnio de
Química Nova , 2002,
Abstract: The chemical durability of the Li2O-ZrO2-BaO-SiO2 system was examined by determination of the Vickers hardness. The dependence of hardness and of the chemical resistance with BaO addition was investigated. The experimental results indicate that the hardness increases with the BaO content. The samples surface's morphology submitted to the chemical treatment in acidic (H2SO4) and basic (KOH) solution was accompanied by scanning electron microscopy. The chemical durability of the materials with BaO showed better than the glass ceramic without this content. These materials treated with H2SO4 solution showed a preferential attack to the silica rich sites.
Somas de quadrados e hipóteses associadas ao modelo dialélico de Gardner e Eberhart
Lima, Paulo César;Ferreira, Daniel Furtado;Bueno Filho, Julio Sílvio de Sousa;Ramalho, Magno Antnio Patto;
Ciência e Agrotecnologia , 2003, DOI: 10.1590/S1413-70542003000500020
Abstract: the diallel analysis model proposed by gardner and eberhart (1966) has been used to evaluate and select superior genotypes in plant breeding programs and to study several characters of genetic inheritance. however, the diallel model is non orthogonal as pointed out by the authors. dependencies can also be generated by losses of genotypes' means, and that can lead to erroneous interpretation of the tested hypotheses because when the model is non orthogonal or unbalanced there are different approaches to the proposed hypotheses that generate different values for the sums of squares. this work intends to determine how the sums of squares of the diallel model effect and their associated hypotheses are affected, including the situations of losses of genotype means. examples of complete and partial diallels were used and the type i sums of squares were determined by means of successive reductions of the unrestricted model according to the procedure used by the sas and they were compared with the type iii sums of squares, obtained through the inverse-of-part-of-inverse algorithm. the associated hypotheses were also compared. the type i was obtained through the estimable functions reported in the glm of the sas system and the type iii was obtained by means of the procedure described by searle (1987), that are correspondent to obtain the solution of wrβ = wβ. the analysis of the complete and partial diallel models, with or without losses of means, was affected in a way similar to the sums of squares and associated hypotheses. it was verified that the losses of crossing means affected in a different way the type i and iii sums of squares and the associated hypotheses of most of the effects and that heterosis was not affected by losses of parents' means. the complete and partial diallel, without losses of means, only presented differences between the sums of squares and associated type i and iii hypotheses for parents confirming the natural non-orthogonality of the adopted mod
A moderniza??o agropecuária nas microrregi?es do Estado de Minas Gerais
Ferreira Júnior,lvio;Baptista, Antnio José M. S.;Lima, Jo?o Eustáquio de;
Revista de Economia e Sociologia Rural , 2004, DOI: 10.1590/S0103-20032004000100004
Abstract: the purpose of this study was to identify and characterize different groups of homogeneous microregions concerning cattle breeding and agriculture modernization in minas gerais state. in order to achieve it, the factorial analysis techniques and the grouping analysis were used to obtain the factors reflecting the technological standard, factors whose relations enable to organize groups of similar microregions. ten different groups of homogeneous microregions were identified, and each of them has its own combination of such factors, reflecting its technological level. the groups found in the study constitute preliminary information for localized application of support policies to the sector, as well as for decisions to be made by private initiative agents.
Desenvolvimento de um Coletor Automático para Ensaios de Aspersores em Laboratório
TADEU MIRANDA DE QUEIROZ,LVIO CARLOS RIBEIRO VIEIRA LIMA,TARLEI ARRIEL BOTREL,JOSé ANTNIO FRIZZONE
Revista Brasileira de Agricultura Irrigada , 2008, DOI: 10.7127/rbai.v2n100200
Abstract: O desenvolvimento de um coletor para precipita o de aspersores em laboratório foi alvo de estudo para implanta o no Laboratório de Ensaios em Equipamentos de Irriga o – LEEI, em SobralCe. Foram estudados os melhores formatos para a coleta da precipita o, levando em conta os fatores: volume coletado, material utilizado e adapta o à automa o utilizando sensores de press o como forma mais econ mica de utiliza o. Conclui-se que os coletores aqui desenvolvidos possuem plena capacidade de serem utilizados para os ensaios e que devem ser realizados testes para confirmar os estudos.
Hipersinais subcorticais no exame de ressonancia magnética: compara o entre idosos deprimidos e idosos normais
Novaretti Tania Maria da Silva,Marcolin Marco Antnio,Meira Jr Sílvio,Gelás Paulo de Lorenzetti
Arquivos de Neuro-Psiquiatria , 2001,
Abstract: é relatado em alguns estudos que idosos deprimidos apresentam maior frequência de hipersinais ao exame de ressonancia magnética do que controles normais. No entanto os indivíduos estudados tinham fatores de risco para doen as cerebrovasculares. Este estudo analisou pacientes com história de depress o maior e indivíduos controles compatíveis, excluindo-se fatores de risco cerebrovasculares, com o objetivo de determinar se indivíduos deprimidos apresentam maior frequência de hipersinais em substancia branca e outras les es. Avaliamos a prevalência e a severidade dos hipersinais à ressonancia magnética de encéfalo em 30 pacientes idosos deprimidos e 20 controles pareados para a idade. Hipersinais de substancia branca profunda, hipersinais periventriculares e hipersinais em substancia cinzenta subcortical foram classificados em escala padr o 0-3, por dois radiologistas que desconheciam o diagnóstico clínico. N o foram encontradas diferen as significativas entre os grupos para hipersinais subcorticais. Estes achados sugerem que os fatores de risco cerebrovasculares provavelmente medeiam a rela o entre depress o e hipersinais, encontrada em estudos anteriores.
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