Speculative pre-computation and multithreading, allows a processor to use spare hardware contexts to spawn speculative threads to very effectively pre-fetch data well in advance of the main thread. In the process, the thin film is fed by a feed device to a downstream punching station and transferred to a downstream processing station after the punching operation. The MR head further includes a shield layer and a shield core layer which includes a shield section and a core section. The anchor is made at least in part of, and may be made entirely of, a porous metal material to facilitate the ingrowth of surrounding bone into the anchor for osseointegrating the anchor into the surrounding bone. The present invention also encompasses detergent compositions containing such particles.