Average Arithmetic
Mostrando 13-24 de 55 artigos, teses e dissertações.
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13. Using AFLP-RGA markers to assess genetic diversity among pigeon pea (Cajanus cajan) genotypes in relation to major diseases
Resistance gene analog (RGA)-anchored amplified fragment length polymorphism (AFLP-RGA) marker system was used in order to evaluate genetic relationships among 22 pigeon pea genotypes with varied responses to Fusarium wilt and sterility mosaic disease. Five AFLP-RGA primer combinations (E-CAG/wlrk-S, M-GTG/wlrk-S, M-GTG/wlrk-AS, E-CAT/S1-INV and E-CAG/wlrk-A
Acta Bot. Bras.. Publicado em: 2014-06
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14. Characterization of potato genotypes using molecular markers.
The objective of this work was to characterize 27 potato genotypes, using molecular markers. Polyacrylamide gel electrophoresis, RAPD techniques and isozymes of esterase, phosphoglucomutase and soluble proteins were analyzed in tubers, and isocitrate dehydrogenase, aspartate transaminase, phosphoglucomutase and peroxidase, in leaves. Eighteen primers were te
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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15. Genetic characterization of ninety elite soybean cultivars using coefficient of parentage.
The objective of this work was to estimate the coefficient of parentage and to understand the genetic structure of 90 elite soybean cultivars, which are adapted to different Brazilian environments. A total of 4,005 coefficients of parentage (f) were obtained and used to group the cultivars by UPGMA method. The constructed dendrogram showed several related cu
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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16. Agreement index and fuzzy risk for the evaluation of waste stabilization pond systems / INDICE DE CONCORDÃNCIA E RISCO FUZZY NA AVALIAÃÃO DO DESEMPENHO DE SISTEMAS DE LAGOAS DE ESTABILIZAÃÃO
In the present study fuzzy arithmetic via triangular fuzzy numbers (TFNs) was applied to compute Fuzzy Agreement Index (FAI) and Fuzzy Risk (FR) for the evaluation of operational aspects, performance and effluent quality in 14 full-scale waste stabilization pond plants (6 primary facultative ponds â PFPs and 8 pond series- PSs) treating domestic sewage. Fin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/10/2010
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17. Diversidade genética entre três linhagens de codorna selecionadas para produção de ovos
A diversidade genética entre três linhagens de codorna (Coturnix japônica) foi avaliada utilizando-se a técnica de random amplified polymorphic DNA (RAPD). As linhagens selecionadas para produção de ovos foram identificadas como amarela, azul e vermelha por meio de anilhas no pé esquerdo. Seis primers de RAPD amplificaram 55 loci, os quais geraram pad
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2010-06
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18. Validação de sequência didática para (re)construção de conhecimentos estatísticos por professores do Ensino fundamental
The purpose of this study is to validates a didactic sequence verifying the forms the teachers of elementary Education understand and work the meanings of the center and spread measures, mode, arithmetic and mean average, according to the levels of operation of Aline Robert s knowledge (1998). To reach this objective we elaborated a didactic sequence that co
Publicado em: 2010
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19. Application of artificial neural networks commitee machine in the solution of an inverse radiative transfer problem / Aplicação de máquinas de comitê de redes neurais artificiais na solução de um problema inverso em transferência radiativa
This work is based on the concept of neural networks committee machine and has the objective to solve the inverse radiative transfer problem in one-dimensional, homogeneous, absorbing and isotropic scattering media. The artificial neural networks committee machine adds and combines the knowledge acquired by an exact number of specialists which are represente
Publicado em: 2010
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20. Análise de alterações em cimentos de ionômero de vidro indicados para o tratamento restaurador atraumático submetidos à ação de escovas dentais de diferentes texturas / Analysis of changes in ionomer glass indicated for atraumatic restorative treatment submitted to the action of toothbrushes of different textures.
This in vitro study was conducted to test the potential for abrasion toothbrush bristles of soft to medium texture in different glass ionomer cements indicated for atraumatic restorative treatment (ART). The evaluation of the abrasion caused by brushing was performed using three parameters: change in mass, roughness and surface hardness. We evaluated two ion
Publicado em: 2010
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21. Genetic variability in Brazilian wheat cultivars assessed by microsatellite markers
Wheat (Triticum aestivum) is one of the most important food staples in the south of Brazil. Understanding genetic variability among the assortment of Brazilian wheat is important for breeding. The aim of this work was to molecularly characterize the thirty-six wheat cultivars recommended for various regions of Brazil, and to assess mutual genetic distances,
Genetics and Molecular Biology. Publicado em: 19/06/2009
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22. Genetic variability identification in Brachiaria ruziziensis by molecular marckers / Identificação da Variabilidade genética de Brachiaria ruziziensis por marcadores molecular
Knowledge of the genetic variability of Brachiaria ruziziensis is required before you start a breeding program. This study investigated the genetic variability of 37 samples of Brachiaria ruziziensis, from the collection held by EMBRAPA Dairy Cattle by molecular markers and long primers. The DNA was extracted from leaves by CTAB method, we used 14 decamer pr
Publicado em: 2009
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23. Estratégias para análise do comportamento de genótipos de soja ao nematoide de cistos (Heterodera glycines) / Strategies for analysis the behavior of soybean genotypes to the cyst nematode (Heterodera glycines)
The objectives of this study were the following ones: to evaluate the stability of the soybean cyst nematode race (H. glycines) from the Nematode Bank of the Soybean Breeding Program by the Federal University of Viçosa (NBSBP-FUV), that is kept under greenhouse conditions; to select the soybean genotypes that were originated by one-single pod descending met
Publicado em: 2009
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24. Study of the dimensions of double-torsion test specimens
Double-torsion tests were carried out to ascertain whether a thin test specimen would affect the results of this test. The tests involved two test specimen sizes, one with a thickness five-fold greater than the particle size of the material and the other with a three-fold greater thickness. The width of both test specimens was ten times that of their thickne
Materials Research. Publicado em: 2008-09