Proceedings of the National Academy of Sciences of the United States of America, 6-7. sējumiNational Academy of Sciences, 1920 |
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Citi izdevumi - Skatīt visu
Bieži izmantoti vārdi un frāzes
acid Amer apparatus Astronomical atomic average Bureau C₁ C₂ Camarasaurus cells Chem chemical chemical elements chondrules chromosome coefficient color Committee constant coöperation corresponding critical absorption crossveinless curve determined distance E. H. Moore earth effect electric electrons energy equation error experiments F₁ factors figure frequency function genes given heat hydrogen hypocotyl increase indicated intensity International International Astronomical Union investigation ionization ions isoelectric point isostasy kf÷k Kilauea linear liquid magnetic magnitude means measurements metal method molecules MOUNT WILSON OBSERVATORY mutant normal observations Observatory obtained paper physical plate platinum population possible potential present pressure problems production protein Quercina radiation ratio region Research seismology shown solar solar constant solution species stars surface T. H. Morgan temperature theory tion tube tuberin tungsten unit University values variable variation velocity volcanoes wave-length X-ray
Populāri fragmenti
395. lappuse - To survey the larger possibilities of science, to formulate comprehensive projects of research, and to develop effective means of utilizing the scientific and technical resources of the country for dealing with these projects.
357. lappuse - Science and the Division of Chemistry and Chemical Technology of the National Research Council.
137. lappuse - Papers from the Department of Biometry and Vital Statistics, School of Hygiene and Public Health, Johns Hopkins University, No.
360. lappuse - Washington, DC The Bulletin of the National Research Council presents contributions from the National Research Council, other than proceedings, for which hitherto no appropriate agencies of publication have existed. The "Bulletin" is published at irregular intervals.
368. lappuse - Wilson be adopted, namely, the Pfund arc operated between 110 and 250 volts as convenient, with 5 amperes or less, at a length of 12 millimeters, and used over a central zone, at right angles to the axis of the arc, not to exceed iy4 millimeters in width.
458. lappuse - ... in it are arranged in groups radiating from one or more points on the external surface in such a manner as to indicate that they were developed after the fragments had acquired their present spheroidal shape.
356. lappuse - They hold office until the end of the next ordinary General Assembly, and are re-eligible. When a Standing Committee is composed of members appointed partly by the Astronomical Union and partly by some other Union connected with the International Council...
361. lappuse - Hull. March, 1921. Pages 81. Price $1.00. Number 10. Report on photo-electricity including ionizing and radiating potentials and related effects. By Arthur Llewelyn Hughes. April, 1921.
159. lappuse - ... cannot avoid the conclusion that if true fats are essential for nutrition during growth the minimum necessary must be exceedingly small.
692. lappuse - ... mechanism of the upper respiratory tract, thus allowing bacterial invasion of the lung. It has been shown by Underbill1 and his associates that in acute poisoning by the lethal war gases edema of the lungs is accompanied by marked changes in the concentration of the blood, which, according to Underbill, is the chief factor contributing to death. Blood concentration means a failing circulation, an inefficient oxygen carrier, oxygen starvation of the tissues, fall of temperature, and finally suspension...