This paper proposes a formal model of agent ontologies, suitable to represent the realities of both customers and sellers in a B2C electronic commerce scenario. This model is capable of describing the entities involved in the above realities (products, product features, product categories) as well as the behaviour of customers and sellers in performing their activities. A system architecture, b...

As managed care gains increasing influence over the American health financing system, economic pressures and emerging market realities have created a fertile climate for wishful thinking on the part of hospital executives and physicians. Rather than accept the inevitability of reducing excess capacity and incomes, providers cling to self-serving myths about managed care's strategic direction. H...

this article analyses the effects of post-zionism in israeli ,society and state. by using the discoursive analysis in social theory, the author argues that discourses such as post-zionism are the results of socio-political and economic conditions (processes), but their evolution is basically the result of the mental and value activities of their proponent, rather than the socio-political proces...

A combined view of the human brain and computer-generated virtual realities is motivated by recent developments in cognitive neuroscience and human-computer interaction (HCI). The emergence of new theories of human brain function, together with an increasing use of realistic human-computer interaction, give reason to believe that a better understanding of the relationship between human brains a...

Current iterations of the hygiene hypothesis suggest an adaptive role for helminth parasites in shaping the proper maturation of the immune system. However, aspects of this hypothesis are based on assumptions that may not fully account for realities about human helminth infections. Such realities include evidence of causal associations between helminth infections and asthma or inflammatory bowe...