A system, method, and computer program product are provided for sending a request to a network for routing a call. The rocker is operable to rotate about a fixed axis. The feedback circuit is constructed such that the feedback amount is variable depending on HIGH or LOW of the output of the output buffer by selecting a predetermined resistance depending on HIGH or LOW. 35, or ZraTibNicCud where a,b,c and d denote atomic % of Zr, Ti, Ni and Cu respectively; 48\u2266a\u226660; 20<b<28; 19<c+d<30; 3<d<12; and 0. An even interphase with a radius of curvature of at least one metre is produced during the crystal growing process by applying a vertical, axial temperature gradient between the bottom of the melt vessel and its top opening and preventing heat from entering andor leaving through the side walls. The high melt flow rate, high crystallinity polypropylene homopolymers produced according to the current invention display improved flexural modulus and tensile yield stress when nucleated.