This paper proves a preliminary step towards a splitter theorem for internally 4-connected binary matroids. In particular, we show that, provided M or M∗ is not a cubic Möbius or planar ladder or a certain coextension thereof, an internally 4-connected binary matroid M with an internally 4-connected proper minor N either has a proper internally 4-connected minor M ′ with an N -minor such that |...

cytochrome-c (cyt-c) is an electron transport protein, and it is present throughout the evolution. more than 280 sequences have been reported in the protein sequence database (www.uniprot.org). though sequentially diverse, cyt-c has essentially retained its tertiary structure or fold. thus a vast data set of varied sequences with retention of similar structure and function makes it a primary ca...

ion Techniques for Parameterized Verification Muralidhar Talupur November 2006 CMU-CS-06-169 School of Computer Science Carnegie Mellon University Pittsburgh, PA 15213 Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy. Thesis Committee: Edmund M. Clarke, Chair Randal E. Bryant Amir Pnueli, New York University Jeannette M. Wing Copyright c © 2006 Muralid...

karyotypes of eleven iranian populations of trigonella foenum-graceum were investigated. somatic chromosome numbers of examined populations were determined as 2n = 14. chromosomal parameters were examined as follows: long arm length (tl), short arm, total chromosome length, arm ratio, r-value, form percentage of chromosome, total form percentage of karyotype. chromosomes were mostly metacentric...

litter size is one of the most important economical traits in sheep breeding industry. in addition to minor genes, litter size is under the influence of major genes. bone morphogenetic protein 15 (bmp-15), a member of the transforming growth factor beta (tgf-ß) superfamily, which is specifically expressed in oocytes, plays a dramatic role in sheep prolificacy. reported mutations in this gene ca...

background: there is a growing concern on the impact of the presence of extended-spectrum β-lactamase (esbl) producing escherichia coli isolated from animals on public health. objectives: the aim of this study was to investigate the presence of three classes of esbl genes in e. coli isolates from sheep and broilers at a slaughter in urmia region, iran. methods: a total of 111 e. coli isolates w...