The abstract behaviour of a grid application management system can be modelled as an Orc expression in which sites are called to perform sub-computations. An Orc expression specifies how a set of site calls are to be orchestrated so as to realise some overall desired computation. In this paper evaluations of Orc expressions in untrusted environments are analysed by means of game theory. The set...

The myth of the fallen angels, as it is known from intertestamental literature, narrates story angels who break divine law, marry earthly women, and beget malevolent hybrid progeny. latter element this narrative can be found in Babylonian Talmud, where invested with new significance: these are distinguished rabbis heavenly messengers’ offspring. I start paper by outlining traces rabbis’ familia...

Purpose: While value creation has long been a target for most economies of the world, only recently have certain macroeconomic and socio-economic practicalities discovered to play key roles in propelling creation. Amazingly, this is topical theme characterized by rareness both theoretical empirical researches. Thus, aim paper assess whether microeconomic (what termed as global competitiveness, ...