| http://www.w3.org/ns/prov#value | - As employed herein, lower alkyl refers to straight or branched chain alkyl radicals having in the range of about 1 up to 4 carbon atoms; alkyl refers to straight or branched chain alkyl radicals having in the range of about 1 up to 12 carbon atoms; "substituted alkyl refers to alkyl radicals further bearing one or more substituents such as hydroxy, alkoxy (of a lower alkyl group), mercapto (o
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