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laundry worker was heavily identified with the chinese . discrimination, lack of english-language skills, and lack of capital kept chinese immigrants out of most desirable careers. around , one in four ethnic chinese men in the u.s. worked in a laundry, typically working to hours a day. [ ] [ ] new...
. the light that is transmitted is seen by the observer and appears coloured because some of the wavelengths of the visible spectrum are now missing. figure mauveine was the first ever synthetic dye. it was produced accidentally by william perkin in who was trying to synthesize quinine. it became particularly...
and encapsulate the implant small circular fibers small circular fibers are better encapsulated by human tissue than larger fibres with irregular cross-sections. non-toxicity fibre polymer or fabrication techniques must be non-toxic and fibres should be free of contaminants. biodegredability / -stability...