The rDNA genes coding for ribosomal RNA (rRNA) in animals are repeat sequences with high GC content and complicated structure. Based on the sequences of human ribosomal DNA repeat unit and transcription unit and the long and accurate PCR method with LA Taq DNA polymerase and GC buffer, we were able to amplify the complicated repeat sequences of rDNA genes in Bos taurus. Three rDNA genes and 2 i...

In this paper, by using some analytic techniques, several sufficient conditions are given to ensure the passivity of continuous-time recurrent neural networks with delays. The passivity conditions are presented in terms of some negative semi-definite matrices. They are easily verifiable and easier to check computing with some conditions in terms of complicated linear matrix inequality.

in april 2003 iraq with a complicated and problematic conditions, was occupied by forces of us and its allies. this country adopted a constitution in october 2005 through a cumbersome process. deferent elements and factors, with their own backgrounds, have had their impacts on the formulation of the constitution. this paper is an attempt to examine the impact of the local, regional, and interna...

BACKGROUND To test the hypothesis that complications increase the use of resources in managing patients in hospitals, we examined the costs of managing patients with the same disease with and without complications. METHODS We used a database developed by the University HealthSystems Consortium that contains the costs of managing more than 1 million patients in 60 University hospitals. We crea...