Science, Том 109John Michels (Journalist) American Association for the Advancement of Science, 1883 Since Jan. 1901 the official proceedings and most of the papers of the American Association for the Advancement of Science have been included in Science. |
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Стр. 7
... isotopes , since these è as different one from another as those of atoms . Some of these separate stable iso- important as tracers , but more of that later . other methods of isotope separation were during the war , and some of them ...
... isotopes , since these è as different one from another as those of atoms . Some of these separate stable iso- important as tracers , but more of that later . other methods of isotope separation were during the war , and some of them ...
Стр. 80
... isotopes do not exchange between oxygen gas and water vapor when passed through a glow dis- charge at low temperatures and pressures . An ex- change of oxygen isotopes could be demonstrated , however , between carbon dioxide and oxygen ...
... isotopes do not exchange between oxygen gas and water vapor when passed through a glow dis- charge at low temperatures and pressures . An ex- change of oxygen isotopes could be demonstrated , however , between carbon dioxide and oxygen ...
Стр. 109
... isotopes in tissue because n of the administered radioactive tracer t equilibrate , owing to absorption and the other hand , the radioactive isotopes o indicate the rate of turnover of sub- hemical reactions . There are many im- ems ...
... isotopes in tissue because n of the administered radioactive tracer t equilibrate , owing to absorption and the other hand , the radioactive isotopes o indicate the rate of turnover of sub- hemical reactions . There are many im- ems ...
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