A fluid power assisted rack and pinion steering apparatus for a vehicle includes a rack connectable with steerable wheels of the vehicle, a housing partially enclosing the rack and defining a fluid chamber, a bushing encircling the rack, a sleeve supporting the rack for sliding movement relative to the bushing, and a fluid tight seal member for sealing the fluid chamber. A gate oxide layer formed on the surface of the source region, the drain region, and the insulation layer. Each client device is associated with a unique user and connected to a communications network. 75<n, and 35<v, where n is a refractive index of the glass for at least one of used wavelengths, and v is an Abbe number for a d-lay.