ScienceJohn Michels (Journalist) 1947 |
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Стр. 67
... period of 456 days . During this time a total amount of 23.2 grams of silver nitrate was consumed by the two animals , or an average of 11.6 grams each . On the 457th day the silver nitrate solution was discontinued and replaced by ...
... period of 456 days . During this time a total amount of 23.2 grams of silver nitrate was consumed by the two animals , or an average of 11.6 grams each . On the 457th day the silver nitrate solution was discontinued and replaced by ...
Стр. 180
... period of 16 years were obtained and are presented in Fig . 2. The 16 - year period was divided into two 8 - year periods . The average of the first period was 2,173 pounds / acre ; that of the second , 2,224 . Prof. W. W. Mackie ...
... period of 16 years were obtained and are presented in Fig . 2. The 16 - year period was divided into two 8 - year periods . The average of the first period was 2,173 pounds / acre ; that of the second , 2,224 . Prof. W. W. Mackie ...
Стр. 324
... period for the lead - plate - covered mice was only 8.5 weeks as com- pared with 11.3 weeks for the controls . The ... period ( wks . ) 50 % latent Car- Tu- cino- mors genic ( 10 period index wks . ) 21 0 OOO 1300 8 Total ..... 0 67 2 2 ...
... period for the lead - plate - covered mice was only 8.5 weeks as com- pared with 11.3 weeks for the controls . The ... period ( wks . ) 50 % latent Car- Tu- cino- mors genic ( 10 period index wks . ) 21 0 OOO 1300 8 Total ..... 0 67 2 2 ...
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AAAS acid activity administration American animals application appointed Association atomic awarded barbiturate biological blood cancer carbon cells cent centrioles chairman chemical chemistry Chicago chromosomes clinical College Commission Committee concentration Department director disease Division Edison effect electrical energy engineering enzyme estrone experimental experiments field Foundation glycerides grams Harlow Shapley Illustrated inactivation increase industrial injection Institute investigation isotopes Kirtley F Laboratory liver material Medical Medicine meeting ment method mice mustard gas National neutrons normal nutrition observed obtained operation organization patients penicillin period physical physiology pipette plants plutonium possible present president problems production professor protein radiation radioactive rats reactions record Roger Adams sample School Science scientific scientists Service smegma Society sodium solution specific stanine streptomycin subtilin technical temperature tests thermal neutrons thiamine tion tissue treatment tube tumors University uranium vitamin Washington York zirconium