One embodiment of the present invention sets forth a technique to perform fine-grained rendering predication using an IGPU and a DGPU. An example according to the technique is a substrate including two antennas, a transceiver, and a connector. The system allows the presentation to be highly configurable and may therefore customize the presentation for a specific user. The outer ferrule is crimped about the exposed end portion of the woven metal shield to clamp exposed end portion of the conductive layer between the inner ferrule and the outer ferrule. The user may lock the selection of these columns. The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion and materials used therein.