The present invention relates to a process for producing porous or finely divided solid inorganic materials, the surface of which has been modified with at least one organic substance, under supercritical conditions, wherein the supercritical conditions are lowered by addition of an inert organic substance. More specifically, the invention is directed to a transgenic non-human animal which is incapable of expressing functional EDG2 protein. Occurrences of stagnant flow events during the period are determined. Each transmitting element has a plurality of movable sections and fixed sections. The roller end is opposite the welding machine body and is configured to move to a first position and a second position.