A system and method for manufacturing an uncured concrete block using the dry-cast manufacturing process includes a mold box having a pair of side walls, a pair of side plates, an open top side and an open bottom side defining a mold cavity. The first field effect transistor receives an input voltage signal through an input node, amplifies the input voltage signal, and outputs the amplified input voltage signal through an output node. The invention further provides compounds that are inhibitors of rsk activity. Each groove may have a specified shape, dimension and surface condition.