When programming a contiguous page of memory storage units, every time a memory storage unit has reached its targeted state and is program-inhibited or locked out from further programming, it creates a perturbation on an adjacent memory storage unit still under programming. Detergents provided by the invention have a higher content of the 2-phenyl alkylbenzene isomers than was previously available in materials of prior art. The first socket may include a central detent configured to releasably retain a toy wheel with a portion of the toy wheel held inside the central detent. In the secondary lateral areas, the cross section will form substantially straight lines.