Their theory further identifies the classes of systems for which rattling explains self-organization. "When we first heard about rattling from physicists, it was very hard to believe it could be true.

This article summarizes activity theory as advanced by Finnish organizational analyst Yrjö Engeström, with particular attention paid to antecedents of activity theory in the work of Vygotsky, Leontyev ...

This article summarizes activity theory as advanced by Finnish organizational analyst Yrjö Engeström, with particular attention paid to antecedents of activity theory in the work of Vygotsky, Leontyev ...