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Search Results: 1 - 10 of 262964 matches for " Maria de Lourdes da Silva;Pacheco "
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Potencial genético da cultivar de milho BR 5011-Sertanejo nos tabuleiros costeiros do nordeste brasileiro
Pesquisa Agropecuária Brasileira , 2000, DOI: 10.1590/S0100-204X2000000600013
Abstract: five selection cycles were carried among and within half-sib progenies on the cultivar br 5011-sertanejo in the counties of neópolis (1991 and 1992), neópolis and umbaúba (1993), lagarto (1994) and neópolis, lagarto and cruz das almas (1995), located in the coastal plainlands of the northern region of brazil. the study aimed to obtain a more yielding and well adapted cultivar of maize to the soil and climatic conditions of this region. the progenies were evaluated in lattice 14x14 with two replications. recombinations of the outstanding progenies were processed within the same year in order to get one cycle per year. the magnitude of the genetic variability of the br5011-sertanejo cultivar was approximately the same in the cycles vi, vii and ix, conducted in one location. however, a reduction of this variability was observed in the cycles viii and x, performed in more than one locality, since the estimatives obtained were less influenced by the interaction progeny x local, showing the importance of the selection in more than one environment, to increase the efficiency of the process and to obtain more accurate estimates of the genotypic variances. in relation to year yield the average gain estimated per selection cycle was 12.68% which associated to the high genetic variability presented by the cultivar and to the high average of progenies productivity indicates its potential for the continuation of the breeding program.
Potencial genético da cultivar de milho BR 5011-Sertanejo nos tabuleiros costeiros do nordeste brasileiro
Pesquisa Agropecuária Brasileira , 2000,
Abstract: Cinco ciclos de sele o entre e dentro de progênies de meios-irm os foram realizados na cultivar de milho BR 5011-Sertanejo, nos municípios de Neópolis (1991 e 1992), Neópolis e Umbaúba (1993), Lagarto (1994) e Neópolis, Lagarto e Cruz das Almas (1995), localizados nos tabuleiros costeiros do Nordeste brasileiro, visando à obten o de uma cultivar mais produtiva e mais bem adaptada às condi es edafoclimáticas da regi o. As progênies foram avaliadas em látice 14x14, com duas repeti es. As recombina es foram realizadas dentro do mesmo ano agrícola do teste, de modo a se obter um ciclo por ano. A variabilidade genética da cultivar BR 5011-Sertanejo permaneceu praticamente a mesma nos ciclos VI, VII e IX, quando a sele o foi efetuada em um só local. Nos ciclos VIII e X, realizados em mais de um local, detectou-se redu o dessa variabilidade pelo fato de as estimativas obtidas estarem menos influenciadas pela intera o progênies x locais, o que evidencia a importancia de se realizar a sele o em mais de um local, para melhorar a eficiência do processo seletivo e obter estimativas mais consistentes dos componentes da variancia genotípica. O ganho médio estimado por ciclo de sele o foi de 12,68%. A possibilidade de ganho com a sele o, a alta variabilidade genética apresentada pela cultivar e as elevadas médias de produtividade das progênies indicam o grande potencial dessa popula o na continuidade do programa de melhoramento.
Adaptabilidade e estabilidade de comportamento de cultivares de milho em treze ambientes nos tabuleiros costeiros do nordeste brasileiro
Carvalho, Hélio Wilson Lemos de;Santos, Manoel Xavier dos;Leal, Maria de Lourdes da Silva;Pacheco, Cleso Antonio Pato;Tabosa, José Nildo;
Pesquisa Agropecuária Brasileira , 1999, DOI: 10.1590/S0100-204X1999001200008
Abstract: the potential of the brazilian northeast coastal tablelands for corn production and the adaptability and stability of sixteen corn cultivars were evaluated at thirteen environments of this region in 1994/95 on a randomized block design experiment with three replications. the large potential of this coastal strip for corn production was evidenced by the obtained yield, highlighting the hybrids, on the coastal tablelands of piauí, sergipe and bahia states, where corn would become a major crop option for the growers. pooled variance analysis showed significant difference for environments and cultivars, and the interactions environment x cultivar, which were inconsistent. hybrids had better adaptation than varieties and populations; they are recommended for higher input situations. the ag 510 hybrid showed good adaptation to low and high input conditions, and therefore is recommended for both situations. the br 5011, br 5028, br 106 and br 5033 varieties had reasonable yields and are suitable for small and medium corn growers.
Adaptabilidade e estabilidade de produ??o de cultivares de milho no nordeste brasileiro
Carvalho, Hélio Wilson Lemos de;Santos, Manoel Xavier dos;Leal, Maria de Lourdes da Silva;Pacheco, Cleso Ant?nio Pato;Cardoso, Milton José;Monteiro, Ant?nio Augusto Teixeira;
Pesquisa Agropecuária Brasileira , 1999, DOI: 10.1590/S0100-204X1999000900008
Abstract: twenty five cultivars of maize (zea mays l.) were evaluated in 1994, in twelve different environments of the northeast region of brazil. the trials were arranged in randomized block designs with three replications aiming to obtain knowledge concerning to the adaptability and yield stability of the cultivars in each environment. the significant effects related to environment, cultivars and cultivars x environments interaction gave the evidence of outstanding differences among that parameters. the hybrids showed better performance than the varieties, yielding in average 22.5% higher in relation to the environmental variations. only the cargill 505 and ag 510 hybrids showed poor adaptability in unfavorable environments. taking in account the means presented by the varieties, cms 39 was the most adjusted to the optimal genotype proposed in the model. none of the materials studied gave a determination coefficient (r2) lower than 80%, indicating a good production stability.
Rese a de "História da profiss o docente no Brasil: representa es em disputa." de VICENTINI, Paula Perin; LUGLI, Rosário Genta.
Maria De Lourdes Da Silva
Revista Brasileira de Educa??o , 2011,
El papel de la institución en el escoger, acoger y acompa?ar al profesor universitario
da Silva Marques Ferreira,Maria de Lourdes;
Investigación y Educación en Enfermería , 2011,
Abstract: objective. to analyze the role of the institution in choosing, receiving and chaperone professors. methodology. qualitative study, which body analysis was composed of 32 participations in a thematic forum of a group of nine health professionals. results. after professor hiring it is necessary to receive and chaperone him. professors with longer time in the institution represent a more important role in the admission of the new professor. chaperone process is an opportunity to change and redefine the rules, and should be supported by permanent evaluation. the university as a legitimate learning scenario, production and knowledge reconstitution, should accompany changes of contemporary science and support the interdisciplinary demands in the new knowledge construction. conclusion. it is fundamental the role of the university receiving and chaperoning teachers from joining. as well university should favor the growth of the professor, not only by supporting the challenges of their pedagogic activity, but mainly through the respect of autonomy.
Motivos que influenciam a n?o-realiza??o do exame de papanicolaou segundo a percep??o de mulheres
Ferreira, Maria de Lourdes da Silva Marques;
Escola Anna Nery , 2009, DOI: 10.1590/S1414-81452009000200020
Abstract: the aim of this study was to analyze reasons which influenced a group of women on never having done the papanicolaou test, even after they started their sexual life. it was a qualitative research and the question "why have you never done the preventive exam before?" was asked during the approach. the descriptions were analyzed through bardin′s content analysis technique. women showed not to know much about cancer and the importance and techniques for prevention. they also revealed to be afraid of doing the exam and knowing the result. shame and embarrassment were feelings expressed by women, due to the intimacy exposition they're submitted to. they also expressed cultural values which make attitude changing difficult. having a job, children and the access to this kind of service were related as impediment factors too. the results showed the importance of educational actions on the necessity of prevention in the beginning of sexual activities, as well as the demystification of techniques and results.
El papel de la institución en el escoger, acoger y acompa ar al profesor universitario O papel da institui o para escolher, acolher e acompanhar ao professor universitário The role of the institution in choosing, receiving and chaperone professors in the university
Maria de Lourdes da Silva Marques Ferreira
Investigación y Educación en Enfermería , 2011,
Abstract: Objetivo. Analizar el papel de la institución en el proceso de escoger, acoger y acompa ar al profesor universitario. Metodología. Estudio cualitativo cuyo cuerpo de análisis estuvo compuesto por 32 participaciones en un foro temático de un grupo de nueve profesionales del área de la salud. Resultados. Después de la contratación del profesor es necesario acogerlo y acompa arlo. Los profesores con mayor tiempo en la institución representan un papel importante en la acogida del nuevo compa ero. El proceso de acompa amiento es una oportunidad para cambios y redefinición de reglas y debe ser apoyado por la evaluación permanente. La universidad como escenario legítimo de aprendizaje, producción y reconstrucción de conocimiento debe acompa ar las transformaciones de la ciencia contemporánea y apoyar las exigencias interdisciplinarias en la construcción de nuevo conocimiento. Conclusión. Es fundamental el papel de la universidad en acoger y acompa ar al docente desde su vinculación; así mismo la universidad debe favorecer el crecimiento del profesor, no solo apoyando los desafíos de su actividad pedagógica, sino principalmente a través del respeto de su autonomía. Objetivo. Analisar o papel da institui o ao escolher, acolher e acompanhar ao professor universitário. Metodologia. Estudo qualitativo, cujo corpo de análise esteve composto por 32 participa es num foro temático de um grupo de nove profissionais da área da saúde. Resultados. Depois da contrata o do professor, é necessário acolhê-lo e acompanhá-lo. Os professores com maior tempo de institui o representam um papel importante na acolhida do novo colega. O processo de acompanhamento é uma oportunidade para mudan as e redefini o de regras, e deve ser apoiado pela avalia o permanente. A universidade como palco legítimo de aprendizagem, produ o e reconstru o de conhecimento deve acompanhar as transforma es da ciência contemporanea e apoiar as exigências interdisciplinares na constru o de novo conhecimento. Conclus o. é fundamental o papel da universidade em acolher e acompanhar ao docente desde sua vincula o; assim mesmo a universidade deve favorecer o crescimento do professor, n o só apoiando os desafios de sua atividade pedagógica, sen o principalmente através do respeito de sua autonomia. Objective. To analyze the role of the institution in choosing, receiving and chaperone professors. Methodology. Qualitative study, which body analysis was composed of 32 participations in a thematic forum of a group of nine health professionals. Results. After professor hiring it is necessary to receive and c
17DD and 17D-213/77 Yellow Fever Substrains Trigger a Balanced Cytokine Profile in Primary Vaccinated Children
Ana Carolina Campi-Azevedo, Luiza Pacheco de Araújo-Porto, Maria Luiza-Silva, Maurício Azevedo Batista, Marina Angela Martins, Renato Sathler-Avelar, Denise da Silveira-Lemos, Luiz Antonio Bastos Camacho, Reinaldo de Menezes Martins, Maria de Lourdes de Sousa Maia, Roberto Henrique Guedes Farias, Marcos da Silva Freire, Ricardo Galler, Akira Homma, José Geraldo Leite Ribeiro, Jandira Aparecida Campos Lemos, Maria Auxiliadora-Martins, Iramaya Rodrigues Caldas, Silvana Maria Elói-Santos, Andréa Teixeira-Carvalho, Olindo Assis Martins-Filho
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0049828
Abstract: Background This study aimed to compare the cytokine-mediated immune response in children submitted to primary vaccination with the YF-17D-213/77 or YF-17DD yellow fever (YF) substrains. Methods A non-probabilistic sample of eighty healthy primary vaccinated (PV) children was selected on the basis of their previously known humoral immune response to the YF vaccines. The selected children were categorized according to their YF-neutralizing antibody titers (PRNT) and referred to as seroconverters (PV-PRNT+) or nonseroconverters (PV-PRNT?). Following revaccination with the YF-17DD, the PV-PRNT? children (YF-17D-213/77 and YF-17DD groups) seroconverted and were referred as RV-PRNT+. The cytokine-mediated immune response was investigated after short-term in vitro cultures of whole blood samples. The results are expressed as frequency of high cytokine producers, taking the global median of the cytokine index (YF-Ag/control) as the cut-off. Results The YF-17D-213/77 and the YF-17DD substrains triggered a balanced overall inflammatory/regulatory cytokine pattern in PV-PRNT+, with a slight predominance of IL-12 in YF-17DD vaccinees and a modest prevalence of IL-10 in YF-17D-213/77. Prominent frequency of neutrophil-derived TNF-α and neutrophils and monocyte-producing IL-12 were the major features of PV-PRNT+ in the YF-17DD, whereas relevant inflammatory response, mediated by IL-12+CD8+ T cells, was the hallmark of the YF-17D-213/77 vaccinees. Both substrains were able to elicit particular but relevant inflammatory events, regardless of the anti-YF PRNT antibody levels. PV-PRNT? children belonging to the YF-17DD arm presented gaps in the inflammatory cytokine signature, especially in terms of the innate immunity, whereas in the YF-17D-213/77 arm the most relevant gap was the deficiency of IL-12-producing CD8+T cells. Revaccination with YF-17DD prompted a balanced cytokine profile in YF-17DD nonresponders and a robust inflammatory profile in YF-17D-213/77 nonresponders. Conclusion Our findings demonstrated that, just like the YF-17DD reference vaccine, the YF-17D-213/77 seed lot induced a mixed pattern of inflammatory and regulatory cytokines, supporting its universal use for immunization.
Influence of the rainfall in the content of nutrients in litter in agroforestry systems managed with burning and without burning in Amazon  [PDF]
Rosecélia Moreira Da Silva Castro, Maria De Lourdes Pinheiro Ruivo, Jorge Luiz Piccinin, Eraldo Ferreira Rodrigues
Agricultural Sciences (AS) , 2013, DOI: 10.4236/as.2013.411A004

This study evaluated the nutrient content of the litter, testing different treatments with burning and no burning, of the vegetation, to identify which one provides better efficiency in operation and production of nutrients in different seasonal conditions. The study area is located on the property of the family farmer, initially selected by a diagnosis socioeconomic, community Benjamin Constant, in northeastern Para. Litter was collected during two periods: dry season (November) and rainy (March) in 2009. For the collection of litter samples, we used collectors measuring (0.25 × 0.25 m2), which were placed directly on the soil surface. The collected material was stored in paper bags and taken to the laboratory for Chemical Analysis of the Brazilian Agricultural Research Corporation (EMBRAPA), which was determined by analyses of macronutrients (N, P, K, Ca, Mg, Na) and micronutrients (Fe, Cu, Mn, Zn). The highest concentrations of macronutrients were found in N for agroforestry systems with and without burning in two seasons (wet and dry). All macronutrients showed influence of seasonality, which was verified by the wide variation in nutritional behavior. The decreasing concentration of nutrients was presented N > Ca > Mg > Na > K > P in agroforestry system with burning, with maximum values of all nutrients in the rainy season, and N, P, K, Ca, Na in higher concentrations in agroforestry system without burning, and showed only the Mg peak in agroforestry system with burning. The behavior of the concentration of nutrients was opposite to that observed one, for all elements analyzed showed a reduction in the concentrations of nutrients in the dry season. The decreasing concentration of nutrients was presented Fe > Mn > Zn > Cu.

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