ScienceJohn Michels (Journalist) 1947 |
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Стр. 16
... occurs within cysts , each gametocyst producing two gametes . In Eucomonympha , no cysts have been seen , and the method by which the gametes are formed is unknown . In Saccinobaculus , Barbulanympha , etc. , other processes occur . In ...
... occurs within cysts , each gametocyst producing two gametes . In Eucomonympha , no cysts have been seen , and the method by which the gametes are formed is unknown . In Saccinobaculus , Barbulanympha , etc. , other processes occur . In ...
Стр. 328
... occurring in the thyroid gland ( 6 ) . It would seem as if a competition for thiouracil and thiothymine between ... occur in normal cells ; thymus nucleic acid , only in cell nuclei ; ribonucleic acid , in both nucleus and cytoplasm ...
... occurring in the thyroid gland ( 6 ) . It would seem as if a competition for thiouracil and thiothymine between ... occur in normal cells ; thymus nucleic acid , only in cell nuclei ; ribonucleic acid , in both nucleus and cytoplasm ...
Стр. 584
... occur at accelerations , applied from seat to head , of approximately 23-25 times the acceleration due to gravity ( " G " ) . The relations between exposure time and the critical level of acceleration which is likely to cause vertebral ...
... occur at accelerations , applied from seat to head , of approximately 23-25 times the acceleration due to gravity ( " G " ) . The relations between exposure time and the critical level of acceleration which is likely to cause vertebral ...
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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