Báo cáo sinh học: "Parameter expansion for estimation of reduced rank covariance matrices (Open Access publication)" potx

... 10.1051/gse:2007032 Original article Parameter expansion for estimation of reduced rank covariance matrices ( Open Access publication) Karin Meyer ∗ Animal Genetics and Breeding Unit ∗∗ , University of New England, Armidale ... 1). Hence, implementation of an EM algorithm for reduced rank estimation requires part of a second set of MME – proportional to the n...

Ngày tải lên: 14/08/2014, 13:22

... considered for the estimation of sire components. The performances of their daughters were introduced in the analysis in order to improve the accuracy of the estimation ... fixed effects of the year-season of calving, of the age at 1st calving and of the length of the preceding lactation were ignored, so that the Cholesky transform...

Ngày tải lên: 14/08/2014, 20:20

... that are of importance. Another one consists in looking for the solution of the Dirichlet problem in the form of a simple layer potential. This approach leads to an integral equation of the first ... concern the study of the first derivatives of a double layer potential. This leads to the construction of a reducing operator, which will be useful in the study of the integral sy...

Ngày tải lên: 18/06/2014, 22:20

... into the mechanisms and effects of IIS. However, an important aspect of the extracellular regulation of the pathway has not been dissected in Drosophila: the binding of ligands by extracellular binding ... circulates as part of ternary complexes of IGF, IGFBP3 and the acid-labile subunit (ALS) [8], was uncovered by the recent characterization of the Drosophila ALS [17], which ap...

Ngày tải lên: 06/08/2014, 18:21

... approach for the estimation of covariance matrices in linear stochastic models, as implemented in the current version of the VCE package for covariance component estimation ... distinguished by their covariance matrices. The model equation for an element v of type y has the form Here All is the coefficient matrix of the block of eq...

Ngày tải lên: 09/08/2014, 18:22

... suitability for prediction of breeding values using large-scale molecular data, e.g. [10,11]. Therefore, one option for reducing the computational burden of 'BayesB' and for avoiding the use of ... was reduced by 7% for the BayesB method, and 16% for the two regression methods. For the lowest marker density, the selection accuracy was reduced by 14% for the r...

Ngày tải lên: 14/08/2014, 13:21

... second order Taylor series expansions Whe wish to find the mode of the marginal distribution of Jfl (or maximum of the marginal likelihood of the data) by recourse to ... to joint estimation ofp and u. When the prior density assigned to U2 is flat, then the mode of the marginal posterior distribution of Jfl is identical to the...

Ngày tải lên: 14/08/2014, 19:22

... showing the distribution of cells for the number of Ag-NORs are presented in figure 2. MCh twins had similar profiles for each NOR-bearing chromosome and for the total number ... existed. Each embryo differed from all others either for the frequency of staining of Ag-NORs, or for the Ag-spot sizes, or for both criteria. MCh co-twin...

Ngày tải lên: 09/08/2014, 18:21

... vector of individual phenotypes, b the vector of fixed effects, X the design matrix of fixed effects, v a vector of random QTL effects, and e the vec- tor of residual effects. The variance of y ... segregation was identified for Growth1 (P < 0.02) and for one (Growth9.1) of the two QTL on chromo- some 7 (P < 0.05). For t he other QTL, the model assuming independence...

Ngày tải lên: 14/08/2014, 13:21

... matrix. Elements of the matrices of derivatives of L are subsets of elements of L, ie, exist only for non-zero elements of L. Thus the same system of pointers can be used for ... derivatives of M are of the form with QR standing in turn for and for first and second derivatives, respectively. As outlined above, R is blockdiago...

Ngày tải lên: 09/08/2014, 18:22