We propose a peer-driven video streaming system that provides a reliable and high-performance video on-demand service. We encode each video into multiple low bit-rate substreams and distribute copies of the sub-streams from the participating peers. Each client receives the constituent multiple sub-streams from different serving peers, and combines them into the original video stream. When a ser...

With demand for health services continuing to grow as populations age and new technologies emerge to meet health needs, healthcare policy-makers are under constant pressure to set priorities, ie, to make choices about the health services that can and cannot be funded within available resources. In a recent paper, Smith et al apply an influential policy studies framework – Kingdon’s multiple str...

The adoption and use of IOS’s by organizations has proved to be difficult and complicated due to a number of reasons. Accordingly, IOS research has been distributed into multiple streams. This paper discusses four widely used theoretical perspectives and the IOS literature related to each perspective. The perspectives are transaction cost economics, incomplete contracts theory, adoption theory ...

This research endeavors to integrate theory from several research streams in order to propose a framework for research into the common situation where organizations make sequential decisions with multiple relevant goals and multiple possible actions where the goals, actions, and decision context display dynamic characteristics in relation to environmental and decision contexts. Goal-driven deci...

This study develops an optimal pricing and replenishment policy in an arborescent (tree-like) supply chain system. Since it benefits the up-streams more than the down-streams when a producer, a distributor and multiple retailers are integrated, a pricing strategy with price reduction is derived to entice the down-streams to accept the incentive system with minimum total cost. Negotiation factor...

various human pressures are affecting the aquatic biocoenosis in running waters of iran - similar to many other areas of the world. overall 190 sites, 88 at salmonid (44 reference/impacted respectively) and 102 at cyprinid (50 reference/52 impacted) streams of the southern caspian sea basin were investigated in terms of human pressures present and the related impact on fish assemblages. in tota...