Science: v.1-v.219Moses King, 1958 |
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Стр. 1139
v.1-v.219. Concentrations of Radioactive Materials in the Air during 1957 The present concern over the possible hazards associated with the introduction of man - made radioactive materials into the air has been occasioned , in part , by ...
v.1-v.219. Concentrations of Radioactive Materials in the Air during 1957 The present concern over the possible hazards associated with the introduction of man - made radioactive materials into the air has been occasioned , in part , by ...
Стр. 1183
... radioactive fall- out ( 1 ) Libby pointed out that neutrons released in the explosions of nuclear weapons react with nitrogen nuclei in the air to make carbon - 14 , which has a half - life of about 5600 years . In his dis- cussion of ...
... radioactive fall- out ( 1 ) Libby pointed out that neutrons released in the explosions of nuclear weapons react with nitrogen nuclei in the air to make carbon - 14 , which has a half - life of about 5600 years . In his dis- cussion of ...
Стр. 1495
... radioactive carbon - 14 , the number of persons in the world likely to have genetic or other ab- normalities from carbon - 14 radiation will be increased . Expressed as a fraction , the increase from bomb testing to date is very small ...
... radioactive carbon - 14 , the number of persons in the world likely to have genetic or other ab- normalities from carbon - 14 radiation will be increased . Expressed as a fraction , the increase from bomb testing to date is very small ...
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12 Sept 18 July AAAS acid activity aldosterone American amino acids animals apparatus Association Atomic B. F. Skinner Bausch & Lomb behavior biochemical biological cells chemical chemistry Chicago chlorophyll Choice Hotel cholinesterase College Colorimeters complete Corp curve Department Dept effect electron ence energy enzyme equipment experiments field Glass gram hemerythrin increase Institute Instrument International Geophysical isotopes Laboratory material mathematics measurement Medical ment method microscope Model molecules National nuclear observed OHIO STATE UNIVERSITY operation optical oxidation papers particles percent physics plant predicates present problems protein radiation radioactive range reaction References and Notes sample Science Scientific scientists Soviet surface temperature tion titration tive tryptophan tube ture U.S. Geological Survey United Univ University volume Washington x-ray York