Professor PhDr. Gabriela Petrová, CSc.

Gabriela Wiosna-Sałyga

Csc-1

The Aurora B kinase complex is a critical regulator of chromosome segregation and cytokinesis. In Caenorhabditis elegans, AIR-2 (Aurora B) function requires ICP-1 (Incenp) and BIR-1 (Survivin). In various systems, Aurora B binds to orthologues of these proteins. Through genetic analysis, we have identified a new subunit of the Aurora B kinase complex, CSC-1. C. elegans embryos depleted of CSC-1...

Cluster - preserving embedding of proteins by Gabriela

Similarity searching in protein sequence databases is a standard technique for biologists dealing with a newly sequenced protein. Exhaustive search in such databases is prohibitive because of the large sizes of these database and because pairwise comparisons are slow. Heuristic techniques, such as FASTA and BLAST, are useful because they are fast and accurate, though it has been shown that exha...

Education Policy and Equality of Opportunity Gabriela

Education Policy and Equality of Opportunity We provide a measure of equality of educational opportunity in 54 countries, estimated as the effect of family background on student performance in two international TIMSS tests. We then show how organizational features of the education system affect equality of educational opportunity. Our model predicts that late tracking and a long pre-school cycl...

CSC 576: Linear System

• σi(A) denotes the ith largest singular value of A, σmin(A) denotes the minimal nonzero singular value of A and σmax(A) denotes the maximal singular value of A; • If U has orthogonal columns, that is, UTU = I, then ‖Ux‖ = ‖x‖ and ‖U>y‖ ≤ ‖y‖; • ‖Ax‖ ≤ σmax(A)‖x‖, where σmax(A) denotes the largest singular value of A; • Note that we do NOT have in general ‖Ax‖ ≥ σmin(A)‖x‖, where σmin(A)(> 0) d...