Science: v.1-v.219Moses King, 1965 |
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Стр. 1358
... mechanism was acti- vated and " refilled , " thus making pos- sible more reinforcement as the sub- ject made further contact . During the brief time the dipper mechanism was in operation , no reinforcement was pos- sible . In 3 to 5 ...
... mechanism was acti- vated and " refilled , " thus making pos- sible more reinforcement as the sub- ject made further contact . During the brief time the dipper mechanism was in operation , no reinforcement was pos- sible . In 3 to 5 ...
Стр. 1611
... Mechanism 1 has a high affinity for potassium , but its affinity for sodium is so low that , in the presence of even a low concen- tration of potassium ( 1 mM ) , sodium absorption by this mechanism is all but abolished . Mechanism 2 ...
... Mechanism 1 has a high affinity for potassium , but its affinity for sodium is so low that , in the presence of even a low concen- tration of potassium ( 1 mM ) , sodium absorption by this mechanism is all but abolished . Mechanism 2 ...
Стр. 1617
... mechanism re- sults in no net motion . It must be emphasized that the mech- anism applies to particles of all sizes , to fairly small particles in a mass of still finer particles , to pebbles or stones in a coarse mixture of sand and ...
... mechanism re- sults in no net motion . It must be emphasized that the mech- anism applies to particles of all sizes , to fairly small particles in a mass of still finer particles , to pebbles or stones in a coarse mixture of sand and ...
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AAAS acid activity aflatoxins American amino acids analysis animals anode antibody antigen aposematic argon atmosphere atoms auxin biological California cells chemical Chemistry clinoenstatite cloud collagen Committee complete concentration Dept deuterium effect electron energy enzyme ethylene experiments field function gradient grafts growth ibid Illus increase Institute instrument International ionization laboratory Lake Vanda Mathematics measured mechanism Medical ment meters methods mitosis Model mutant Nalgene National nitrous acid normal observed obtained operation optical papers particles percent Physics position potential present Press problems produced protein pulse range Rat Island records References and Notes response sample Science scientific scientists serum solution specific stimulation streamer streptolysin studies Surtsey symposium techniques temperature tephra theory thymine tion tissue tive tryptamine ture Univ University Washington York