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Page 6345, results 158601 - 158625

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Virucidal activity of two Iodophors to salmonid viruses
Donald F. Amend, John P. Pietsch
1972, Journal of the Fisheries Research Board of Canada (29) 61-65
Wescodyne® and Betadine®, organic iodine complexes, were compared in vitro for virucidal activity against infectious hematopoietic necrosis (IHN), infectious pancreatic necrosis (IPN), and viral hemorrhagic septicemia (VHS) viruses. Both iodophors were about equally effective on all three viruses. Each iodophor completely destroyed IHN virus within 30 sec at 12 ppm iodine, and was...
Production and standing crop of Hexagenia (Ephemeroptera) in a large reservoir
P.L. Hudson, G.A. Swanson
1972, Studies in Natural Sciences (1) 1-42
Population dynamics of the mayflies, Hexagenia limbata (Serville) and Hexagenia bilineata (Say), were studied in Lewis and Clark Lake from 1962 to 1969. Nymphs that hatched in June and July emerged as adults in 13-14 months (titled 1-year cycle) and nymphs hatched in late August or September emerged in 22...
Electron microprobe evaluation of terrestrial basalts for whole-rock K-Ar dating
E. A. Mankinen, G. Brent Dalrymple
1972, Earth and Planetary Science Letters (17) 89-94
Four basalt samples for whole-rock K-Ar dating were analyzed with an electron microprobe to locate potassium concentrations. Highest concentrations of potassium were found in those mineral phases which were the last to crystallize. The two reliable samples had potassium concentrated in fine-grained...
Surface charge density dependency on Al2O3 content in imogolite
E. A. Jenne
1972, Clays and Clay Minerals (20) 101-103
An analysis of the available literature data indicates that the cation exchange capacity and surface charge density of imogolite decrease systematically as the mole % of Al2O3 (i.e. 100 Al2O3/SIO2 + Al2O3) increases. This behavior is analogous to that of synthetic aluminosilicates. In contrast, no relation is apparent between the...
Martian physical properties experiments: The Viking Mars Lander
R.W. Shorthill, R.E. Hutton, H. J. Moore, R.F. Scott
1972, Icarus (16) 217-222
Current data indicate that Mars, like the Earth and Moon, will have a soil-like layer. An understanding of this soil-like layer is an essential ingredient in understanding the Martian ecology.The Viking Lander and its subsystems will be used in a manner similar to that used by Sue Surveyor program to...
Biscalitheca suzanneana, N. Sp., from the uppermost Pennsylvanian of Texas
S.H. Mamay
1972, Review of Palaeobotany and Palynology (14) 141-147
Biscalitheca suzanneana, n. sp., is described from specimens found in an uppermost Pennsylvanian deposit in north-central Texas. The genus was identified primarily on the basis of impressions of the unique sporangial annuli. The occurrence establishes for Biscalitheca a stratigraphic range equivalent to nearly the entire...
Prospects for earthquake prediction and control
J. H. Healy, W.H.K. Lee, L. C. Pakiser, C.B. Raleigh, M.D. Wood
1972, Tectonophysics (14) 319-332
The San Andreas fault is viewed, according to the concepts of seafloor spreading and plate tectonics, as a transform fault that separates the Pacific and North American plates and along which relative movements of 2 to 6 cm/year have been taking place. The resulting strain can be released by creep,...
H. W. Murdy, 1924-1971
H.K. Nelson
1972, Journal of Wildlife Management (36) 681-681
Abstract has not been submitted...
Fecundity of the sea lamprey (Petromyzon marinus) in Lake Superior
Patrick J. Manion
1972, Transactions of the American Fisheries Society (101) 718-720
An infectious agent, which appears to be a virus (RJV) has been isolated from the liver of a wild raccoon which has led to a highly fatal type of disease characterized by conjunctivitis and an elevated serum bilirubin frequently accompanied by jaundice on inoculation of raccoons. Ferrets also appear to...
Downstream migration of recently transformed sea lampreys before and after treatment of a Lake Michigan tributary with a lampricide
John W. Hodges
1972, Journal of the Fisheries Research Board of Canada (29) 1237-1240
After the Pere Marquette River was treated with a lampricide in May 1964, the number of recently transformed sea lampreys (Petromyzon marinus) collected in the water-intake structure of a chemical plant near the mouth of the stream dropped 99.5%, from 13,913 (average for 1962-63 and 1963-64) to 76 (average for...
The geologic setting of the Luna 16 landing site
J.F. McCauley, D. H. Scott
1972, Earth and Planetary Science Letters (13) 225-232
The Luna 16 landing site is similar in its geologic setting to Apollos 11 and 12. All three sites are located on basaltic mare fill which occurs mostly within multi-ring basins formed by impact earlier in the moon's history. A regolith developed...