Due to network effects and switching costs, platform providers often become entrenched. To dislodge them, entrants generally must offer revolutionary products. We explore a second path to platform leadership change that does not rely on Schumpeterian creative destruction: platform envelopment. By leveraging common components and shared user relationships, one platform provider can move into ano...

Four subfamilies of voltage-gated K"*" channels {Shaker, Shal, Shab and Shaw) have been defined that are present in many species to regulate neuronal excitability. The well characterized simple leech nervous system is ideal to study the roles K+ channels have in regulating neuronal circuits. As a starting point for studies to examine the role of K+ channels in well defined leech circuitry, we r...