The inventionrelates to a method for makinga titanium-basedautomotiveenginevalvesusingpowdermetallurgyprocess, and theautomotiveengine valve stem, enginevalve and method of producing both.
They believe a single type of cell may be cancer's main growth engine:mutant stem cells that, though barely present, spawn other cells that then spark growth.
Besides playing to the gallery of public opinion, it is hoping that, in the long term, stem-cell technology could become an important engine of growth.