ScienceJohn Michels (Journalist) 1949 |
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Стр. 85
... problems and to prepare themselves to deal with the products of this evolution . When the great agricultural agencies of the nation were organized , the compelling problems , for the most part , had to do with handling crops in the ...
... problems and to prepare themselves to deal with the products of this evolution . When the great agricultural agencies of the nation were organized , the compelling problems , for the most part , had to do with handling crops in the ...
Стр. 103
... problems and to prepare themselves to deal with the products of this evolution . When the great agricultural agencies of the nation were organized , the compelling problems , for the most part , had to do with handling crops in the ...
... problems and to prepare themselves to deal with the products of this evolution . When the great agricultural agencies of the nation were organized , the compelling problems , for the most part , had to do with handling crops in the ...
Стр. 491
... problems that have long baffled others . While this may be true enough , a re- view of the history of science will show that in general the solution of a problem is relatively easy once the problem has been posed and that the real ...
... problems that have long baffled others . While this may be true enough , a re- view of the history of science will show that in general the solution of a problem is relatively easy once the problem has been posed and that the real ...
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SCIENCE | 4 |
TECHNICAL PAPERS | 26 |
The Validity of the Use of Tracers to Follow | 149 |
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AAAS absorption acetylcholine action activity adaptation agricultural research Amer American amino acids ascorbic acid Atomic Beer-Lambert law biol biological cancer Chem chemical chemistry chloride College color Committee comparison area concentration containing curve Department disease effect energy enzyme esterase esters experimental experiments extinction field folic acid genetic hyaluronidase Illustrated increase Institute investigation isotopes Journal kappa kappa particles killer animals Laboratory light lupulon material measurements Medicine meiosis ment method microscope molecules muscle National nitrogen nitrogen mustard nuclear nucleic acid observed obtained optical organic oriented paper physical Physiol physiology plants present problems production professor protein publication radiation radioactive reaction reported royal jelly Science scientific scientists serum sickle cell anemia Society solution specific sporangia standard substance Table technique temperature thread tion tissue tive United Univer University values virus vitamin vitamin B12 Washington York zoospores