999 resultados para Audit sampling


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Audit report on the City of Guttenberg, Iowa, for the years ended June 30, 2009 and 2008

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Audit report on the Xenia Rural Water District for the year ended December 31, 2009

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Audit report on the Iowa Department of Natural Resources for the year ended June 30, 2009

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Audit report on the Iowa Centennial Memorial Foundation for the year ended May 31, 2010

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Audit report on the Iowa Petroleum Underground Storage Tank Board (UST Board) for the year ended June 30, 2009

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Audit report on the Iowa Communications Network (ICN) for the year ended June 30, 2009

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Audit report on the Iowa Legislature for the year ended June 30, 2009

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To test whether quantitative traits are under directional or homogenizing selection, it is common practice to compare population differentiation estimates at molecular markers (F(ST)) and quantitative traits (Q(ST)). If the trait is neutral and its determinism is additive, then theory predicts that Q(ST) = F(ST), while Q(ST) > F(ST) is predicted under directional selection for different local optima, and Q(ST) < F(ST) is predicted under homogenizing selection. However, nonadditive effects can alter these predictions. Here, we investigate the influence of dominance on the relation between Q(ST) and F(ST) for neutral traits. Using analytical results and computer simulations, we show that dominance generally deflates Q(ST) relative to F(ST). Under inbreeding, the effect of dominance vanishes, and we show that for selfing species, a better estimate of Q(ST) is obtained from selfed families than from half-sib families. We also compare several sampling designs and find that it is always best to sample many populations (>20) with few families (five) rather than few populations with many families. Provided that estimates of Q(ST) are derived from individuals originating from many populations, we conclude that the pattern Q(ST) > F(ST), and hence the inference of directional selection for different local optima, is robust to the effect of nonadditive gene actions.

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Audit report on the Disaster Grants – Public Assistance program of the Iowa River - Flint Creek Levee District in Des Moines County and Louisa County, Iowa for the year ended June 30, 2009

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Audit report on the Disaster Grants – Public Assistance program of Louisa – Des Moines County Drainage District in Des Moines County and Louisa County, Iowa for the year ended June 30, 2009

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Audit report on Washington County, Iowa for the year ended June 30, 2009

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Audit report on the Iowa Turkey Marketing Council for the years ended December 31, 2009 and 2008

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Audit report on the Student Health Facility Revenue Bond Funds of Iowa State University of Science and Technology for the year ended June 30, 2010

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Audit report on the Office of Treasurer of State, Iowa Educational Savings Plan Trust for the year ended June 30, 2010