Science: v.1-v.219

AAAS Academic activity American amino acids analysis animals antibody associated behavior Biol biology California carotenoid cells Center centromeres cerumen chemical chemistry Chlorella chromosome concentration cores Department depth effects electron environment enzyme experimental experiments federal field fraction genetic guanine Hasselblad Health human hydrazine ibid illus increase indicate Institute instrument kyanite laboratory leukemia light marine measurements ment mice molecular mutagenic mutations Nalgene National normal observed OHIO STATE UNIVERSITY optical organisms papers particles percent physical position present problems Proc produced protein pteridine Purkinje cells radiolarian range recorded References and Notes response samples Science scientific scientists sediments social specific staurolite structure surface symposium tained techniques temperature tion tissue tive tridymite ture United Univ University uracil values York