ScienceJohn Michels (Journalist) 1959 |
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Стр. 209
... period Max . Date Total time above 20 pphm ( hr ) Time maxi- mum value was reached Av . 8 - hr period ( 9 A. M. to Range in 24 - hr period 5 P.M. ) Min . 23 Sept. 0.8 3:02 P.M. 4.5 12.4 0 31 26 Sept. 1.6 * 9:55 A.M. 5.4 14.3 0.5 37 8 ...
... period Max . Date Total time above 20 pphm ( hr ) Time maxi- mum value was reached Av . 8 - hr period ( 9 A. M. to Range in 24 - hr period 5 P.M. ) Min . 23 Sept. 0.8 3:02 P.M. 4.5 12.4 0 31 26 Sept. 1.6 * 9:55 A.M. 5.4 14.3 0.5 37 8 ...
Стр. 390
... period after each stimu- lation . Any stimulus arriving during this refractory period will fail to result in excitation . A third explanation ( 3 ) in- volves the threshold of brightness dis- crimination . Stimulation by a flash of ...
... period after each stimu- lation . Any stimulus arriving during this refractory period will fail to result in excitation . A third explanation ( 3 ) in- volves the threshold of brightness dis- crimination . Stimulation by a flash of ...
Стр. 391
... period in such a combination is arbi- trary , the circles below the diagonal line A = B are mirror images of those above the line , and vice versa . The solid circles in Fig . 2 represent the fusion points ob- tained by varying period B ...
... period in such a combination is arbi- trary , the circles below the diagonal line A = B are mirror images of those above the line , and vice versa . The solid circles in Fig . 2 represent the fusion points ob- tained by varying period B ...
Содержание
POLARIMETER | 162 |
Speed versatility and convenience in measuring | 219 |
Volume 10 1959 | 291 |
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900 North Michigan AAAS acetylcholine acid activity American amino acids ammonia animals areas Association Atomic basic behavior biochemical biological California carnitine cells Center Chem chemical chemistry Chicago citron cloud College Colorimeters Committee Council crystals culture Department Dept director effects electron ence energy Engineering enzyme experience field folic acid genetic glycine gram hemoglobin hydroxyproline ical Institute instrument International laboratory measurements mechanism Medical ment methemoglobin microscope mitochondria Model National National Science Foundation nictitating membrane nuclear nuclei observed operation optical organic papers percent Ph.D physics plant present president problems production protein protozoa radiation range References and Notes Ruth Benedict samples School Science scientific scientists Society soil Soviet specific surface Technology temperature theory tion tissue ture United Univ University volume Washington World Data Center York