introduction: quality of services extremely depends on how personnel have contact and interaction with the clients. moreover, the personnel’s attitudes and their behaviors with the clients significantly affect clients’ perception of quality of services and consequently influence their satisfaction as well as their absorption to the services of an institution. this study intends to investigate t...

The notion of a $D$-poset was introduced in a connection withquantum mechanical models. In this paper, we introduce theconditional expectation of  random variables on theK^{o}pka's $D$-Poset and prove the basic properties ofconditional expectation on this  structure.

We study a Bertrand game where two sellers supplying products of different and unverifiable qualities can outwit potential clients through their (costly) deceptive advertising. We characterize a class of pooling equilibria where sellers post the same price regardless of their quality and low quality ones deceive buyers. Although in these equilibria low quality goods are purchased with positive ...

HTTP Adaptive Streaming (HAS) has become a prevailing technology for media delivery nowadays. It enables high quality streaming of media content over the internet delivered from conventional HTTP web servers. However, its on-off traffic pattern constructed by segmented transmission can lead to some performance problems, such as instability, inefficiency and unfairness, while multiple clients co...