| http://www.w3.org/ns/prov#value | - In general terms, this variation is a system for determining the presence of hard keratin (mammalian hair, feathers, etc.) from light reflected therefrom, the device comprising (a) a measurement device adapted to measure reflected light from the assayed area, space or region, the measurement comprising a measurement of the respective amount and (b) a processor at the remote site and capable of rel
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