A therapy mat table has an upper surface and removable mat. of 1 to 10 mm2s, and a polyacrylate viscosity index improver containing a structural unit represented by the formula in a proportion of 30 to 90 mol % and having a hydrocarbon main chain ratio of 0. Raised SiGe sourcedrain regions are formed on either side of the oxide liner and slim spacers are formed over the oxide liner. In order to establish correspondence, a non-monotonic temporal reference may be formed by the clock of a synchronous bus connecting, at least temporarily, the two machines. An ATMARP Server determines which member of a standby group should handle IP packets destined for that group.