Estimation of (co)variance components by derivative-free REML requires repeated evaluation of the log-likelihood function of the data. Gaussian elimination of the augmented mixed model coefficient matrix is often used to evaluate the likelihood function, but it can be costly for animal models with large coefficient matrices. This study investigated the use of a direct sparse matrix solver to ob...

The article contains a translation and an original text of the report Ratmann Lübeck, Zhachariah Meyer, about his diplomatic trips to Moscow in 1586–1587. document is stored Archives Hanseatic City Lübeck (Archiv der Hansestadt Lübeck) has not been published so far. On behalf magistrate Meyer visited court Tsar Fyodor Ioannovich Novgorod Pskov. In context transformation League, which took place...