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Search Results: 1 - 10 of 90052 matches for " Luis Gonzaga;Silva Filho "
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Estudo anatomotopográfico do canal arterial em fetos natimortos dirigido para sua abordagem por videotoracoscopia
Castro Neto, Josué Viana de;Vieira, Fernando Meton;Leite, Raquel Russo;Carvalho, Raquel;Sena, José Ivanberg Nobre de;Pinheiro, Luis Gonzaga Porto;Silva Filho, Ant?nio Ribeiro da;
Acta Cirurgica Brasileira , 2001, DOI: 10.1590/S0102-86502001000100010
Abstract: the purpose of this work is to realize an anatomic and topographic study of the ductus arteriosus in newborn cadavers emphasizing its lenght and diameter according to each size of the newborn cadaver. we also describe distances between the ductus and important structures for thoracoscopic approach. we study sixteen newborn cadavers. eight were male. size of the cadavers, thoracic and cephalic perimeters ranged from 42-47,26-35 and 29-35,5 cm, respectively. median lenght and diameter were 11,06 and 5,56 mm. distances between ductus arteriosus and follow structures were: collarbone-22,13mm, second rib-20,75mm, sternum-33,88mm and left subclavian artery-5,30mm. we belived that these distances described can facilitate thoracoscopic surgical approach to the ductus arteriosus.
BRS 336: a high-quality fiber upland cotton cultivar for Brazilian savanna and semi-arid conditions
Morello, Camilo de Lelis;Pedrosa, Murilo Barros;Suassuna, Nelson Dias;Lamas, Fernando Mendes;Chitarra, Luis Gonzaga;Silva Filho, Jo?o Luis;Andrade, Francisco Pereira;Barroso, Paulo Augusto Vianna;Ribeiro, José Lopes;Godinho, Vicente de Paulo Campos;Lanza, Marcelo Abreu;
Crop Breeding and Applied Biotechnology , 2012, DOI: 10.1590/S1984-70332012000100012
Abstract: cotton cultivar brs 336 is a high-quality fiber upland cultivar and has wide adaptation to the brazilian growing areas, with resistance to bacterial blight. brs 336 exhibited fiber length higher than 32.0 mm in all field tests. also, fiber strength exceeded all upland cotton currently grown in brazil.
BRS 335: a midseason high-yielding upland cotton cultivar for northeast brazilian savanna
Morello, Camilo de Lelis;Pedrosa, Murilo Barros;Suassuna, Nelson Dias;Chitarra, Luiz Gonzaga;Lamas, Fernando Mendes;Silva Filho, Jo?o Luis;Andrade, Francisco Pereira de;Barroso, Paulo Augusto Vianna;Ribeiro, José Lopes;Godinho, Vicente de Paulo Campos;Lanza, Marcelo Abreu;
Crop Breeding and Applied Biotechnology , 2012, DOI: 10.1590/S1984-70332012000300011
Abstract: cotton cultivar brs 335 is a midseason high-yield cultivar and has adaptation to the northeast brazilian savanna, yield stability, desirable resistance to main cotton diseases and good fiber quality. the cultivar brs 335 meets growers' demands for competitive lint yield as well as fulfilling industrial textile requirements.
Colecistectomia videolaparoscópica experimental em cadáver humano: 70 casos
Sena, José Ivamberg Nobre de;Silva Filho, Ant?nio Ribeiro da;Pinheiro, Luiz Gonzaga Porto;
Revista do Colégio Brasileiro de Cirurgi?es , 2001, DOI: 10.1590/S0100-69912001000200005
Abstract: background: we present a model of training in laparoscopic cholecistectomy using human corpses. the objective this method is initiate, adapt, prepare and perfect the surgeons in this newer operative technique. method: seventy stillborn fresh unfreezed of both males and female were used with body heights ranging from 39 to 54 centimeters (average = 49 cm) and weights between 1,210 and 3,900 grams (average = 2,900 g). a complete set of equipment for videolaparoscopic surgery was employed. each fetus was submitted to experimental videocholecistectomy. the surgical techniques were the same than in vivo colecistectomy laparoscopic. anatomic biliary dissection and surgical ressection of the gallbladders were feasible. the relevant data for the technical and anatomical aspects of each procedure were registered. results: the use of human material for training allows similar conditions and identical anatomy as those which will be met during daily operative surgical practice. conclusions: the authors concluded that the videolaparoscopic training in stillborn human corpse can be applied in training surgeons in basic and advanced laparoscopic surgery.
Mariano-da-Silva, Samuel;Prado-Filho, Luíz Gonzaga do;
Scientia Agricola , 1999, DOI: 10.1590/S0103-90161999000200021
Abstract: the aim of this paper was to study accumulation of cadmium (cd) by saccharomyces cerevisiae fermenting sugar-cane must, with sub-toxic additions of cadmium. fermentation conditions were the same as those used in industrial production of alcohol, using non-sterilized must at ph 4.5 containing 12% total reducing sugar (w/w). using cadmium acetate, four levels of contamination were applied, as follows: 0.5; 1.0; 2.0 and 5.0 mg cd kg-1 must. the must was inoculated with baker's yeast (10% w/w). after 4 hours of fermentation, the wine was centrifuged and alcohol content and percent of yeast in the wine were determined. the separated yeast was analyzed for wet weight, solid and crude protein contents. cadmium content was determined by atomic absorption spectrophotometry. accumulation of cadmium by the yeast was shown at all levels of contamination.
Selection and estimation of the genetic gain in segregating generations of papaya (Carica papaya L.)
Francisco Filho da Silva,Messias Gonzaga Pereira,Helaine Christine Cancela Ramos,Pedro Corrêa Damasceno Junior
Crop Breeding and Applied Biotechnology , 2008,
Abstract: In Brazil, papaya is sustained by a narrow genetic basis, with few genetically distinct cultivars for planting.Therefore, this study aimed to select and estimate the direct and combined genetic gains for commercial fruit yield (Yld Plt-1)in segregating generations of papaya. Six traits were simultaneously targeted in combined selection and were attributedweights associated to agronomic values. Direct selection however was based on Yld Plt-1 only. Results indicated geneticvariability in the segregating generations for the evaluated traits and although combined selection achieved a lower geneticgain in Yld Plt-1, it offers greater chances of success in the following generations since favorable and unfavorable agronomictraits of papaya are considered. These results motivated the recommendation to advance generations with 30 plants, selectedfrom a total of 345 plants, considering all segregating treatments.
Seasonal and genetic influences on sex expression in a backcrossed segregating papaya population.
Helaine Christine Cancela Ramos,Messias Gonzaga Pereira,Francisco Filho da Silva,Alexandre Pio Viana
Crop Breeding and Applied Biotechnology , 2011,
Abstract: This study aimed to evaluate the genetic and seasonal influence on sex expression in segregating generationsof papaya elite and backcrossed genotypes. In the four seasons of the 2005/2006 growing season, 200 hermaphrodite plantswere evaluated. Of the eight studied traits, four were related to flowering and four to fruiting, i.e., to the percentage of normal,deformed, sterile, and total number of flowers, as well as the percentage of total, carpelloid, pentandric, and marketablefruits. Significant differences due to the genotype x season interaction were verified. Based on the genotypic determinationcoefficient and the variation index it was concluded that winter and spring are most appropriate for the selection of superiorgenotypes. Thus, selection in early stages of plant development is more successful, indicating that the physiological age mayalso be a factor involved in the expression of the above traits.
Estimation of genetic parameters related to morphoagronomic and fruit quality traits of papaya
Francisco Filho da Silva,Messias Gonzaga Pereira,Helaine Christine Cancela Ramos,Pedro Corrêa Damasceno Junior
Crop Breeding and Applied Biotechnology , 2008,
Abstract: The estimation of genetic parameters allows an identification of the genetic variability in a population andunderlies the choice of the most suitable improvement methods. This study aimed to estimate the genetic parameters related tomorpho-agronomic and fruit quality traits in the following papaya genotypes: 16BC1S1, 52BC1S1, 115BC1S1, SS 72/12 x 4BC1,BC2, SS 783 and Golden. Based on the means and respective standard deviations and on the estimates of genetic parametersof the evaluated traits, it was concluded that selection in the segregating generations has great chances of success, in view ofthe wide genotypic variability among them, with values of H2 (coefficient of genotypic determination) of over 80% for mostevaluated phenotypic attributes. Considering the importance of the flowering and fruiting attributes, the high H2 indicates thatimprovement programs can achieve great increases in papaya yield.
Genotypic correlations of morpho-agronomic traits in papaya and implications for genetic breeding
Francisco Filho da Silva,Messias Gonzaga Pereira,Helaine Christine Cancela Ramos,Pedro Corrêa Damasceno Junior
Crop Breeding and Applied Biotechnology , 2007,
Abstract: It is essential to study the correlations between traits of genetic breeding, principally, when selection for a traitis impaired by low heritability or difficulties with measurement and identification. This study aimed to estimate genotypiccorrelations among 15 morpho-agronomic traits in papaya. Results indicated that early selection for greater stem diameter(SD) can result in more productive plants. Although correlations between normal flowers and commercial fruits, estimated inthe same period of evaluation, cannot be recommended for the selection procedures, the correlations between deformedflowers and carpelloid and pentandric fruits are reliable enough to be used in the selection procedures if measured in the sameperiod. Deformed flowers and sexual reversion affect the commercial fruit yield, indicating the need for the development ofsegregating generations for selection in the main producing regions of Brazil.
Mariano-da-Silva Samuel,Prado-Filho Luíz Gonzaga do
Scientia Agricola , 1999,
Abstract: O presente trabalho visou estudar o acúmulo de cádmio (Cd) por Saccharomyces cerevisiae, fermentando mosto de caldo de cana-de-a úcar com contamina es controladas, em níveis sub-tóxicos do citado metal. As condi es de fermenta o foram similares às reinantes na produ o industrial de etanol. O mosto, n o esterelizado, continha 12% de a úcares redutores totais (ART) e pH 4,5. Para a contamina o controlada empregou-se acetato de cádmio em quatro níveis de contamina es (0,5; 1,0; 2,0 e 5,0 mg Cd kg-1 mosto). A inocula o do mosto foi executada com fermento de panifica o (10% p/p). Após a fermenta o (4 horas) foram determinados, porcentagem de fermento no vinho centrifugado e teor alcoólico do mesmo. Na levedura separada foram determinados peso úmido, matéria seca, proteína bruta e teores de cádmio por espectrofotometria de absor o at mica. Em todos os níveis de contamina o estudados houve acúmulo de Cd pela levedura.
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