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Search Results: 1 - 10 of 8323 matches for " Willian Dias; "
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Suplemento RBO Ortopedia Pediátrica
Willian Dias Belangero
Revista Brasileira de Ortopedia , 2010, DOI: 10.1590/s0102-36162010000700001
Abstract:
Synthesis, toxicity towards brine shrimp (Artemia salina Leach) and antimicrobial activity evaluation of 3,5-diphenylchlorinated-1,2,4- oxadiazoles = Síntese, toxicidade frente a Artemia salina Leach e avalia o da atividade antimicrobiana de 1,2,4-oxadiazóis-3,5-difenilclorados
Silvio Luiz Machado,Luciane Vieira dos Santos,Willian Ferreira da Costa,Benedito Prado Dias Filho
Acta Scientiarum : Technology , 2005,
Abstract: The known oxadiazoles 3,5-bis-(phenyl)-1,2,4-oxadiazole (3a); the 3-(4-chlorophenyl)-5-phenyl-1,2,4-oxadiazole (3b); and the new 3,5-diphenylchlorinated-1,2,4-oxadiazoles 3c-e were synthesized from the reaction of benzamidoximes with an appropriated acid chloride and cyclisation of the resulting O-acylbenzamidoxime intermediate. The compounds synthesized were characterized on the basis of their IR, NMR (1D and 2D) and mass spectral data. Compounds 3a-e were evaluated for their antimicrobial activity and for their toxicity towards brineshrimp (Artemia salina Leach). Os oxadiazóis 3,5-bis-(fenil)-1,2,4- oxadiazol (3a) e 3-(4-clorofenil)-5-fenil-1,2,4-oxadiazol (3b), já descritos na literatura, e, os 1,2,4- oxadiazóis-3,5-fenilclorados inéditos 3c-e, foram sintetizados pela rea o de bezamidoximas com um cloreto de ácido apropriado, seguido da cicliza o do intermediário O-acilíco resultante. Os compostos obtidos foram caracterizados com base nas análises dos dados espectroscópicos de IV, EM e RMN (uni- e bidimensionais). Os compostos 3a-e foram submetidos a bioensaios paraavalia o de atividade antimicrobiana e, de toxicidade frente ao microcrustáceo Artemia salina Leach.
Osmocondicionamento em sementes de pimenta 'amarela comprida' (Capsicum annuum L.) Submetidas à deteriora??o controlada
Fialho, Gustavo Sessa;Silva, Camila Andrade;Dias, Denise Cunha Fernandes dos Santos;Alvarenga, Eveline Mantovani;Barros, Willian Silva;
Ciência e Agrotecnologia , 2010, DOI: 10.1590/S1413-70542010000300017
Abstract: the osmotic conditioning technique has been considered promising for improving the physiological potential of seeds of various species. in this context, the study aimed to evaluate the effect of osmotic conditioning on the performance of pepper seeds subjected to controlled deterioration. thus, seeds of 'long yellow pepper' (capsicum annuum l.), with water content adjusted to 24%, were subjected to controlled deterioration in water bath at 45 °c for 0, 24, 48 and 72 hours. after that, they were osmotic conditioning in peg 6000 to -1.1 mpa during 0, 6 and 8 days. the germination, first count of germination, germination at low temperature, speed of germination at 15 o c and 25 °c, dry weight of seedlings and length of primary root were evaluated. it was found that the osmotic conditioning was beneficial to the germination of pepper seeds deteriorated by 48 and 72 hours, not affecting the germination of seeds of high physiological quality. it also helped to improve the strength of both the seeds that had not been damaged and those deteriorated by 48 and 72 hours, being a promising technique to increase their physiological quality.
Correlation and repeatability in progenies of African oil palm = Correla es e repetibilidade em progênies de dendê
Digner Santiago Ortega Cedillo,Willian Silva Barros,Fábio Medeiros Ferreira,Luiz Ant?nio dos Santos Dias
Acta Scientiarum : Agronomy , 2008,
Abstract: The phenotypic, genotypic and environmental correlations between thenumber of palm fruit bunches and the annual yield and their combinations in African palm were estimated. There were also estimated the coefficients of repeatability and determination, with the objective of indicating the lowest number of successive harvestsrequired to exploit the genotypic potential of the evaluated progenies. The genotypic correlation between the number of bunches per plant and the yield was negative, indicating that when genotypes with a higher yield are selected the number of bunches decreases. Ingeneral, the signal of the genotypic correlation differed was opposite to the one from the environmental correlation, evidencing that genetic and environmental factors influence the number of bunches and yield through different physiological mechanisms. Based on the method of principal components applied to the correlation matrix, at least four years of evaluation seem to be necessary, values coefficients of reliability and repeatability were87.6% e 0.64, respectively. Estimaram-se as correla es fenotípicas, genotípicas e ambientais entre o número de cachos por planta e a produ o anual e suas combina es em dendê (Elaeis guineensis). Os coeficientes derepetibilidade e de determina o também foram estimados, com o objetivo de indicar o período mínimo de colheita necessário para se acessar o potencial genotípico das progênies avaliadas. A correla o genotípica entre o número de cachos e a produ o foi negativa,indicando que, se forem selecionados os genótipos com maior produ o, o número de cachos deverá diminuir. A correla o genotípica geralmente apresentou sinal oposto do que precedia correla o ambiental, evidenciando que as causas genéticas e ambientaisinfluenciam o número de cachos e a produ o por meio de mecanismos fisiológicos distintos. Com base no método de componentes principais aplicado à matriz de correla o, o período mínimo de colheitas foi de quatro anos, com confiabilidade de 87,6% e coeficiente de repetibilidade de 0,64.
HIGH ECCENTRICITY EOQ TOTAL COST FUNCTION YIELDS JIT RESULTs
Willian Roach
Revista de Administra??o FACES Journal , 2010,
Abstract: No estoque de bens perecíveis, o custo de armazenamento H é muito maior do que o previsto na fórmula clássica do lote econ mico do pedido (EOQ). Para bens perecíveis, a fun o custo total no EOQ é um pico e n o uma reta horizontal. Esta forma pontiaguda leva o modelo EOQ a produzir entregas just in time (JIT) - resultados semelhantes. O efeito pontiagudo (excentricidade) da curva de custo total do lote econ mico EOQ depende apenas do custo de armazenamento (H) e n o da demanda anual (D) ou do custo do pedido (S). D e S determinam o nível (altura) da curva de custo total do estoque (TC), mas n o a forma.
Los temas de la discusión pública en las elecciones presidenciales chilenas 2005: relaciones entre las agendas de los medios y las agendas mediatizadas de los candidatos y del gobierno
Willian PORATH
América Latina Hoy , 2009,
Abstract: RESUMEN: El objetivo del presente trabajo es analizar cuáles fueron los temas de la discusión pública que predominaron en los medios de comunicación chilenos durante la campa a presidencial de fines de 2005, y cuáles fueron los temas con que los candidatos y el gobierno aparecieron posicionados en ellos. Utilizando el marco metodológico y conceptual de la teoría de la agenda setting se analizan las interrelaciones entre las agendas de estos tres actores con el objetivo de describir de qué manera se articuló la discusión pública. Se realizó un análisis de contenido cuantitativo de los dos principales diarios y de los noticieros centrales de tres canales nacionales. Los resultados muestran una pauta distinta para la televisión y la prensa escrita, siendo esta última la que está más cerca de los temas con los que los actores políticos aparecen en los medios. El estudio también revela que el entonces presidente Ricardo Lagos y sus voceros muestran en los medios agendas distintas. En cuanto a los candidatos, en un marco de grandes similitudes, tiende a darse un eje de discusión entre la candidata oficialista Michelle Bachelet, por un lado, y sus tres contendores, por otro, los que aparecen con discursos homogeneizados. ABSTRACT: The purpose of this paper is to show the public discussion topics that dominated the mass media during the last presidential election campaign in Chile in late 2005. It also intends to determine the topics for which the candidates and the government appeared in the media. Agenda-setting’s conceptual theory and methodological frame were employed to analyze the inter-relations among the agendas of these three public actors with the aim to describe how the public discussion was articulated. A quantitative content analysis was carried out on the two most influential newspapers and the three most important television newscasts. The results show a difference in television’s agenda compared with newspapers’. In fact, the papers’ agenda is closer to the topics, which the political actors appear in the media. The results also reveal that President Ricardo Lagos and his speakers appear with different agendas in the media. The candidates share many similarities, but while a discussion is evident between the government’s candidate Michelle Bachelet and her three contenders, the latter tend to appear in the media with a homogenous agenda.
Compreens es de conceitos de cálculo diferencial no primeiro ano de matemática - uma abordagem integrando oralidade, escrita e informática
Willian Beline
Bolema: Boletim de Educa??o Matemática , 2008,
Abstract:
Selection among and within and combined selection in oil palm families derived from Dura x Dura
Cedillo, Digner Santiago Ortega;Ferreira, Fábio Medeiros;Barros, Willian Silva;Cruz, Cosme Dami?o;Dias, Luiz Ant?nio dos Santos;Rocha, Rodrigo Barros;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008000100011
Abstract: oil palm, in view of the worldwide consumed oil, is a perennial crop of great importance. nevertheless, the genetic improvement is still incipient. in this study we applied the selection among and within families and the combined selection, based on the phenotypic values and phenotypic performance (pi statistic), to verify which strategy obtained the highest genetic gains. five full-sib families were evaluated in randomized blocks, with five replicates and 12 plants per plot, over five years of successive harvests. the total number of bunches and the total fruit yield per year plant-1 were evaluated. values of 1.00 and 0.25 for the ratio between the environmental variance among plots and the environmental variance among plants within the plot for both traits, respectively, were adequate for the estimation of the genetic parameters. the existence of genetic variability in the population dura was verified for both evaluated traits. the combined selection, based either on the phenotypic values or on the underlying pi statistic, resulted in the highest genetic gains. despite the satisfactory gains since it translates the true yield potential of the evaluated genotypes and their performance stability.
Milho pipoca consorciado com feij?o em diferentes arranjos de plantas
Viegas Neto, Antonio Luiz;Heinz, Rafael;Gon?alves, Manoel Carlos;Correia, Allan Michel Pereira;Mota, Leandro Henrique de Souza;Araújo, Willian Dias;
Pesquisa Agropecuária Tropical , 2012, DOI: 10.1590/S1983-40632012000100004
Abstract: the intercropping of popcorn and bean is an alternative for small farmers, by providing higher profits and a better use of the crop area, besides reducing loss risks. this study aimed to evaluate different popcorn and bean intercropping systems. the experiment was carried out in an experimental field owned by the universidade federal da grande dourados, in dourados, mato grosso do sul state, brazil. the experimental design was randomized blocks, with four replications, with treatments arranged in a split-plot scheme, with plots consisting of two popcorn cultivars (zélia and brs angela) and subplots consisting of three intercropping systems with popcorn and the brs mg pioneiro bean (popcorn + bean in the popcorn row, popcorn + bean between the popcorn rows, and corn + bean in the popcorn row + bean between the popcorn rows), and popcorn under monocropping system. the intercropping systems evaluated did not affect the popcorn yield, and bean sown in the popcorn row + between the popcorn rows resulted in a higher yield. in general, the intercropping between the two species decreased bean yield, however, due to the equivalent area index values, it was 50% to 91% more efficient than the monocropping systems.
Modelos de capacidade de suporte de carga de um Latossolo Vermelho-amarelo sob diferentes usos e manejos
Pires, Bruno Silva;Dias Junior, Moacir de Souza;Rocha, Wellington Willian;Araujo Junior, Cezar Francisco;Carvalho, Rita de Cássia Ribeiro;
Revista Brasileira de Ciência do Solo , 2012, DOI: 10.1590/S0100-06832012000200032
Abstract: soil compaction has been identified as one of the main factors causing yield reduction of several crops. the use of the load carrying capacity models to identify management techniques which leads to alterations on soil density is a proven and consolidated methodology. this study was carried out to: a) generate load carrying capacity models for different uses and managements of an oxisol; b) identify the land use or management that is most susceptible or most resistant to compaction by these models. the study was conducted in passos, minas gerais. seven land use and managements were evaluated in the study, namely: irrigated pastures before and after cattle trampling, non-irrigated pasture before and after cattle trampling, passage to the pickets, no-tillage corn, and native forest. undisturbed soil samples of the 0-5 cm layer were subjected to uniaxial compression test. the load carrying capacity models of irrigated and non-irrigated pasture prior to cattle trampling did not differ from each other but from the native forest model. the load carrying capacity models of the irrigated pasture after trampling, non-irrigated pasture after trampling; no-tillage corn and passage to the pickets did not differ statistically, but did from the native forest model. compared to the native forest, it was concluded that cattle trampling changed the soil structure.
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