The PB2 protein of influenza A viruses has been shown as host range determinant. In this study PB2gene of five H9N2 isolates from Tehran province during the period of 1998-2001 were partially amplifiedand sequenced to do phylogenetic study. Iranian isolates could be classified in Eurasian lineage according totheir PB2 gene sequences. The PB2 genes of these isolates are different from those of M...

equine piroplasmosis is a tick-borne disease caused by intra-erythrocyte protozoa, theileria equi and babesia caballi. the present study aimed to detect piroplasm infection in horses in kurdestan province, iran, through molecular and microscopic approaches.n this study, 186 blood samples were randomly collected from horses of five regions of kurdestan province. the tbs-s/tbs-a primer set was us...

Prdm9 (Meisetz) is the first speciation gene discovered in vertebrates conferring reproductive isolation. This locus encodes a meiosis-specific histone H3 methyltransferase that specifies meiotic recombination hotspots during gametogenesis. Allelic differences in Prdm9, characterized for a variable number of zinc finger (ZF) domains, have been associated with hybrid sterility in male house mice...

This paper shows how a one-way mapping using majority information on adjacent bits will improve the randomness of d-sequences. Introduction In a recent article, Anthes [1] summarizes recent results in generating true random numbers. In particular, it mentions the work at Intel Corp. to use thermal noise on the central processing unit of the computer as random number generator (RNG) [2]. This is...

An infinite sequence a1 < a2 < · · · is d-complete if every sufficiently large integer is the sum of ai such that no one divides the other. We investigate d-completeness of sets of the form {pαqβ} and {pαqβrγ} with α, β, γ nonnegative.

A comparative gene map of the horse genome composed of 127 loci was assembled based on the new assignment of 68 equine type I loci and on data published previously. PCR primers based on consensus gene sequences conserved across mammalian species were used to amplify markers for assigning 68 equine type I loci to 27 horse synteny groups established previously with a horse-mouse somatic cell hybr...

BACKGROUND Sox 9 is a major marker of chondrocyte differentiation. When chondrocytes are cultured in vitro they progressively de-differentiate and this is associated with a decline in Sox 9 expression. The active form of vitamin D, 1, 25 (OH)2D3 has been shown to be protective of cartilage in both humans and animals. In this study equine articular chondrocytes were grown in culture and the effe...