this study examines the quality of services at iran’s central library of management and planning organization (mpo) from the viewpoint of its users. the research was conducted in two phases: first, the library and its services were compared to the standards for special libraries published by the national library of iran (nli). the library was found to meet most of the standards. second, the qua...

It is a critical issue in network dimensioning that the characterization of traffic at the call level should be accurate enough to provide the designer with reliable tools for dimensioning the transmission and switching capacities. Since in B-ISDN the nature of traffic is expected to be very different from traditional telephone traffic with much more complex features, therefore, new methods are...

The discovery of services is of one of the most integral parts of a service-oriented system. Discovery is the problem of identifying services from a pool of service descriptions that fulfill the requirements of a discovery request. With an increasing number of services developed and offered in an enterprise setting or the Web, users can hardly verify their requirements manually in order to find...

Objective: To study the protective effect of polyprenols on acute liver injury induced by CCl4 and D-Gal. Method: The acute liver injury model induced by 0.5% CCl4 in olive oil (10ml/kg) and D-Gal (800mg/kg, i.p.) in mice and rats respectively. 10, 40 and 160 mg/kg polyprenols was administered i.g., to study the protective effect for different doses of polyprenols, the therapeutic effect of eac...

This paper presents an extensive data-based analysis of the non-profit democratic hospitality exchange service bewelcome.org. We hereby pursuit the goal of determining the factors influencing its growth. It also provides general insights on internet-based hospitality exchange services. The other investigated services are hospitalityclub.org and couchsurfing.org. Communities using the three serv...