Partition Of Variance
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Estrutura da comunidade de macroinvertebrados bentônicos na bacia hidrográfica do Rio Forqueta (RS, BRASIL) em múltiplas escalas espaciais
Os macroinvertebrados bentônicos constituem uma importante comunidade em riachos, pois participam do fluxo de energia, sendo um importante recurso alimentar para níveis tróficos adjacentes e superiores. Formam uma fauna bastante diversificada e a estrutura desta comunidade pode ser influenciada por diversos fatores ambientais, os quais variam no tempo, no
Publicado em: 2011
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2. Mixture models in quantitative genetics and applications to animal breeding
Finite mixture models are helpful for uncovering heterogeneity due to hidden structure; for example, unknown major genes. The first part of this article gives examples and reviews quantitative genetics issues of continuous characters having a finite mixture of Gaussian components. The partition of variance in a mixture, the covariance between relatives under
Revista Brasileira de Zootecnia. Publicado em: 2007-07
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3. Epistasia e interação epistasia por locais para a produção de grãos em soja / Epistasis and epistasis by location interaction for grain yield in soybean
In soybean breeding programs the selfing progenies are generally evaluated as possible cultivars. The study of the structure of the genetic variation among progenies in different generations of selfing depends upon the action of the loci involved and the variability of the trait under study. In soybeans, grain yield is the most important trait and it is char
Publicado em: 2007
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4. Variabilidade genética de acessos de tomateiro (Lycopersicon esculentum Mill.) com base na avaliação de fotossíntese, partição de fotoassimilados e produção / Genetic variability of tomato (Lycopersicon esculentum Mill.) accesses on the basis of the evaluation of the photosynthesis, partition of photoassimilates and production
The genetic variability of nine accesses of tomato (Lycopersicon esculentum Mill.) of indeterminate type, of the Vegetable Germplasm Bank of the Viçosa Federal University was evaluated for photosynthetic capacity (A), dry matter, partitioning dry matter and yield, having been used as standard of the cultivating tomato the Santa Clara cultivar. The experimen
Publicado em: 2007
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5. Application of open queueing network models for the design and planning of discrete manufacturing systems. / Aplicação de modelos de redes de filas abertas no projeto e planejamento de sistemas discretos de manufatura.
The management of manufacturing systems have become more complex, once that new products are arising, product demands are uncertain, life cycles get shorter, and a wide variety of products compete for common resources. This thesis deals with the design and planning of discrete manufacturing systems, based on open queueing network models to support the decisi
Publicado em: 2005
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6. Language boundaries and biological differentiation of Bougainville: multivariate analysis of variance.
Blood genetic and antropometric data on Melanesians from Bougainville, Papus New Guinea, are analyzed by random-effects analysis of variance to partition the observed variation into components for the individuals, village, and language group level. Both clinial and unpatterned group differences exist. The differences between language groups appear to be subs
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7. Epistasis in Measured Genotypes: Drosophila P-Element Insertions
Transposon tagging provides an opportunity to construct large numbers of strains of organisms that differ by single insertional mutations. By scoring the phenotypes of these ``measured genotypes,'' powerful tests of effects of mutations on phenotypic expression have been performed. Here we extend this approach by constructing with simple crosses all possible
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8. Mixed model analysis of quantitative trait loci
We develop a mixed model approach of quantitative trait locus (QTL) mapping for a hybrid population derived from the crosses of two or more distinguished outbred populations. Under the mixed model, we treat the mean allelic value of each source population as the fixed effect and the allelic deviations from the mean as random effects so that we can parti
The National Academy of Sciences.
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9. Genetic Variability of Flight Metabolism in DROSOPHILA MELANOGASTER . II. Relationship between Power Output and Enzyme Activity Levels
The major goal of the studies reported here was to determine the extent to which genetic variation in the activities of the enzymes participating in flight metabolism contributes to variation in the mechanical power output of the flight muscles in Drosophila melanogaster. Isogenic chromosome substitution lines were used to partition the variance of both type
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10. Photosynthetic electron transport from water to NADP+ driven by photosystem II in inside-out chloroplast vesicles
It is now widely held that the light-induced noncyclic (linear) electron transport from water to NADP+ requires the collaboration in series of the two photosystems that operate in oxygen-evolving cells: photosystem II (PSII) photooxidizes water and transfers electrons to photosystem I (PSI); PSI photoreduces ferredoxin, which in turn reduces NADP+ (the Z sch
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11. Self-association of the polyene antibiotic nystatin in dipalmitoylphosphatidylcholine vesicles: a time-resolved fluorescence study.
The interaction between Nystatin and small unilamellar vesicles of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine, both in gel (T = 21 degrees C) and in liquid-crystalline (T = 45 degrees C) phases, was studied by steady-state and time-resolved fluorescence measurements by taking advantage of the intrinsic tetraene fluorophore present in this antibiotic. It was
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12. Transition modes in Ising networks: an approximate theory for macromolecular recognition.
For a statistical lattice, or Ising network, composed of N identical units existing in two possible states, 0 and 1, and interacting according to a given geometry, a set of values can be found for the mean free energy of the 0-->1 transition of a single unit. Each value defines a transition mode in an ensemble of nu N = 3N - 2N possible values and reflects t