Suppose $pi:mathcal{A}rightarrow mathcal{B}$ is a surjective unital $ast$-homomorphism between C*-algebras $mathcal{A}$ and $mathcal{B}$, and $0leq aleq1$ with $ain  mathcal{A}$. We give a sufficient condition that ensures there is a proection $pin mathcal{A}$ such that $pi left( pright) =pi left( aright) $. An easy consequence is a result of [L. G. Brown and G. k. Pedersen, C*-algebras of real...

background and objectives: hbv dna monitoring is important in management of chronic viral hepatitis b infection. hbv dna measurements are carried out over period of months to years. so the analytical system must be stable and reproducible. the aim of this study was to determine the performance characteristics and to plan a statistical quality control system of a laboratory-developed real-time q...

conclusions the prevalence of pandemic influenza viruses in recent years has caused financial losses as well as mortalities around the world. this shows the importance of the rapid diagnosis of common serotypes in our society. using real-time rt-pcr is recommended for the early diagnosis and the rapid identification of the individuals infected with pandemic influenza virus. background timely di...

understanding of the natural history of chronic hbv infection is useful for presenting the optimal management of chronic hbv infection. the aim of this study was to evaluate the natural history of chronic hepatitis b infection.in this cross sectional study, 219 untreated chronic hepatitis b patients from jan. 2010 to aug. 2012 were included. the subjects were classified in four groups based on ...

A significant result in the structure theory of regular languages is the Krohn-Rhodes Theorem, which states that any finite automaton can be decomposed into simple “prime factors”. This theorem can be stated in different versions using different products on different structures, namely the cascade product of automata, the wreath product of transformation semigroups and the block product of semi...