service oriented enterprises (soes) are subject to constant change and variation. in this paper, the changes are considered from an economic perspective based on service culture notion. once a change is implemented, the costs of some member services may increase, whereas the costs of some other services may reduce. we construct a game theoretic model trying to capture the possible conflicting i...

Systemic acquired resistance (SAR) is the phenomenon whereby a plant’s own defense mechanisms are induced by prior treatment with either a biological or chemical agent. The concept of SAR has been widely recognized and studied for the past 100 years in relation to increasing resistance to fungal, bacterial, and viral pathogens of economically important crop plants. The use of SAR as part of a d...

The Internet has become a multi-purpose network capable of providing many services to a variety of geographies and population. Content delivery of digital content covers many possibilities from music and video to published papers and e-Books, and also wide ranging services and applications. This paper describes the challenges of providing the infrastructure required to make digital content deli...

Content Distribution Networks (CDNs) are based on a static infrastructure, and caching and replication in CDNs are performed in a static manner. We argue that it is necessary to design future CDNs in such a way that they are scalable to reach enough customers, their costs are kept low, and they provide a Quality-of-Service that satisfies the client requirements. To reach these goals, more flexi...