conclusions generally, there is a lack of robust and high quality empirical evidence regarding the effects of iso 9001 and the efqm model on the quality care provided by and the performance of hospitals. however, the limited evidence shows that iso 9001 and the efqm model might improve hospital performance. results seven out of the 121 studies that were retrieved met the inclusion criteria. thr...

Quality of Service delivery in network services has been a mayor issue for both customers and providers, but it is only recently that the possibility to integrate network performance metrics into a global Network Management system has become a reality thanks to modern analysis tools and computing power improvement. In order to define and characterize quality of service as the basis to provide r...

We consider the linear quadratic differential games for positive linear systems with the feedback information structure and two players. The Newton method to obtain the stabilizing solution of a corresponding set of Riccati equations is presented in the literature. Here, we modify the Newton method and propose a new faster iterative method. Moreover, the convergence properties of the modificati...

Multimedia networks will support a wide range of applications with different requirements and traffic characteristics. Connection Admission Control (CAC) algorithms are used to decide whether an incoming connection should be accepted or rejected in order to maintain the quality of service (QoS) demanded by the applications. The objective of this work is to present an environment we developed us...

A key issue to address in the design and implementation of any assessment system is ensuring its reliability and validity. University assessment policies often require staff to prepare parallel examinations for students who are unable to sit the initial examination. There is little published literature to give confidence to staff or students that these examinations are indeed reliable or equiva...

Packet scheduling algorithms enhances the packet delivery rate effectively in wireless networks; it helps to improve the quality of service of the wireless networks. Many algorithms had been deployed in the area of packet scheduling in wireless networks but less attention is paid to security. Some algorithms which offer security often compromise performances such as schedulability, this is not ...

With the introduction of digital broadcasting techniques to radio and television, it becomes desirable to have an efficient possibility to reach receivers operating under varying degrees of received signal strength. Cover [2] showed that it is not efficient to do time sharing, that is transmitting a robust but low quality signal time multiplexed with a signal more susceptible to perturbations o...