The subject invention provides a mounting assembly for supporting a hopper and a spreading mechanism on a vehicle for carrying and spreading a material. A housing is mounted to the standard wherein the housing is adapted to removably clamp around a push pole. The invention also includes a method of preventing a Schwann cell from forming a tumor by contacting the cell with an amount of tyrphostin AG825 sufficient to inhibit a receptor selected from ErB2, ErB3, \u03b21 integrins and combinations thereof, so as to prevent phosphorylation of Schwannomin-S815 by one or more endogenous kinases. The critical areas are areas of the OPCed IC design layout that are at risk for hot spots.