Researches on instructional methods and learners’ factors are more frequently conducted than those on the differences caused by media. Under these circumstances, a new model for the selecting media for instruction was proposed (Reiser & Gagne, 1983), based on R.M. Gagne’s theory of instruction (Gagne, 1985) . This model is an integration of the research findings that the Educational Technology ...

This study proposes a behavioural complexity theory for media selection in global virtual teams. This theory captures multiple contingencies into one holistic approach to media selection. Unlike existing linear and mechanistic theories of media selection, this heuristic theory moves away from the universal models that were previously proposed. The behavioural complexity theory assumes ambiguity...

based on the carnahan and starling hard sphere equation of compressibility, an equation of state has been derived. conditions that must be met by all equations of state are applied in order to obtain attractive term or non - ideal compressibility term of the equation. second virial coefficient and acentric factor arc used in the derivation of the equation of state. in this equation, compressibi...

The present investigation analysis a problem of r­­­eflection and transmission at an interface of two micropolar orthotropic piezothermoelastic media. The basic equations and constitutive relations for micropolar orthotropic piezothermoelastic media for G-L theory are derived. The expressions for amplitude ratios corresponding to reflected and transmitted waves are derived analytically. The eff...