ScienceJohn Michels (Journalist) 1953 |
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Стр. 26
... recent marine sediments and that many ancient clays and shales contain chemically precipitated colloidal - size quartz . Chemical analyses of river and sea water and recent marine and ancient sediments are cited in many sources of ...
... recent marine sediments and that many ancient clays and shales contain chemically precipitated colloidal - size quartz . Chemical analyses of river and sea water and recent marine and ancient sediments are cited in many sources of ...
Стр. 32
... recent enough to be rep- resentative of present practices . Journals were selected to form a representative sample of subject fields , and the coverage by the abstracting services of articles published during 1947-1949 has been analyzed ...
... recent enough to be rep- resentative of present practices . Journals were selected to form a representative sample of subject fields , and the coverage by the abstracting services of articles published during 1947-1949 has been analyzed ...
Стр. 419
... recent history of Germany and Russia shows how quickly science is fettered , once totalitarianism gains control . The scientist may have " wages , fame , ( and ) for- tune " but if these become his major goals , it may not be long ...
... recent history of Germany and Russia shows how quickly science is fettered , once totalitarianism gains control . The scientist may have " wages , fame , ( and ) for- tune " but if these become his major goals , it may not be long ...
Содержание
News and Notes | 38 |
21 | 40 |
A Quantitative Analysis of the Factors Involved in | 49 |
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AAAS acid activity American animals antibiotics application Association Atomic auxin awarded bacteria Bentley Glass Biochem Biol biological blood Cancer cells Chem chemical Chemistry chlordane coal balls College Committee compounds Conference Congress culture Department determined Director Division dose effect electric electron Engineering enzyme experimental experiments fellowships field genetic glucose glucuronic acid grant growth heptachlor hyaluronidase Ibid Illus injected Institute International investigations laboratory larvae magnetic magnetic moment Manuscript received material Medical Medicine ment methionine method mice National normal nuclear nucleons observed obtained organisms paper phenylalanine Physics Physiology plants present President problems production Professor progesterone protein radiation rats reaction reported samples School Science scientific scientists Sept serum silica Society solution strains streptomycin sucrose Sulcia Table techniques temperature thiamine tion tissue tube tumor Univ University virus Washington York