A value transfer system with physical tokens including indicia hiding means and indica substantially hidden by the hiding means and the hiding being substantially removable is improved by providing a plurality of regions with substantially removable hiding means, with the hiding means substantially hiding...
Biol. Chemistry: 277(42): 39062-39065; and Li et al., 2002, J. Neurochem. 82(6): 1540-1548). Accumulation of presenilin into high molecular weight complexes is altered in cells lacking these proteins. A third enzyme, α-secretase, cleaves the precursor protein between the β- and γ-...