A novel growth arrest homeobox gene has been discovered and the nucleotide sequences have been determined in both the rat and the human. A mechanical connection produces rectilinear movement in response to pivotal movement of the lever and a core element is connected to the mechanical connection for receiving the rectilinear movement. In one embodiment, an additional paired unit, if available, is allocated for execution of an identified stretch of code. The well layers each include an un-doped InXGa1-XN region. The implosion energy and the fuel in the cavity may be used to activate and sustain a fusion reaction.