The periannular extension of infection is one of the most dangerous complications in patients with infective endocarditis (IE) and can significantly impact on the prognoses of these patients. The accurate detection and delineation of periannular complications are crucial in patient management, which may also provide guidance for surgical intervention. Echocardiography is the preferred imaging e...

Telomeric DNA can fold into four-stranded structures known as G-quadruplexes. Here we investigate the ability of G-quadruplex DNA to serve as a substrate for recombinant Tetrahymena and native Euplotes telomerase. Inter- and intramolecular G-quadruplexes were gel-purified and their stability examined using native gel electrophoresis, circular dichroism (CD) and thermal denaturation. While inter...

This paper assumes the cell formation problem as a distributed decision network. It proposes an approach based on application and extension of information theory concepts, in order to analyze informational complexity in an agent- based system, due to interdependence between agents. Based on this approach, new quantitative concepts and definitions are proposed in order to measure the amount of t...

this research was carried out to identify the role of ict in intrapreneurship development in iranian agricultural extension organization. it was implemented as a correlational research through the use of casual model. statistical population of the study consisted of 2768 iran extension employees. one out of each six regional groups of provinces (n= 25) was randomly selected while 250 extension ...

In this paper, we propose a new concurrency control algorithm based on multi-agent systems which is an extension of majority protocol. Then, we suggest a clustering approach to get better results in reliability, decreasing message passing and algorithm’s runtime. Here, we consider n different transactions working on non-conflict data items. Considering execution efficiency of some different...

A lack of power and extensibility in their query languages has seriously limited the generality of DBMSs and hampered their ability to support data mining applications. Thus, there is a pressing need for more general mechanisms for extending DBMSs to support efficiently database-centric data mining appliacations. To satisfy this need, we propose a new extensibility mechanism for SQL-compliant D...