Heat increment associated with dietary protein, fat, carbohydrate and complete diets in salmonids: comparative energetic efficiency
R. R. Smith, G. L. Rumsey, M. L. Scott
1978, Journal of Nutrition (108) 1025-1032
The heat increment (HI) of feeding, which is the increased heat production following consumption of food by an animal, accounts for as much as 30% of the ingested metabolizable energy (ME) in mammals and birds. The purpose of these experiments was to measure the HI associated with the feeding of...
Borehole gravity survey in the Dry Piney oil and gas field, Big Piney-La Barge area, Sublette County, Wyoming
L. A. Beyer, F. G. Clutsom
1978, Oil and Gas Investigation Chart 84
No abstract available....
A new myxosporidan, Dicauda atherinodi n.g., n. sp. of the minnow, Notropis atherinoides Rafinesque
G. L. Hoffman, R. Walker
1978, Journal of Fish Diseases (1) 343-349
Dicauda atherinoidi n.g., n. sp. (Protozoa: Myxosporida) was found in feral minnows, Notropis atherinoides (Cyprinidae), from western Lake Erie (Sterling State Park), Michigan, and the lower Mohawk and Hudson Rivers, New York. Dicauda, closely related to Myxobolus, differs from it in having two, occasionally three or more, rigid tail-like possibly mucoid appendages attached to the...
Malic acid accumulation in roots in response to flooding: Evidence contrary to its role as an alternative to ethanol
Jon E. Keeley
1978, Journal of Experimental Botany (29) 1345-1349
Across a time course of flooding the malic acid content in roots of the swamp tree Nyssa sylvatica var. biflora increased 5-fold from 1 week to 1 month of flooding and remained at that level through a full year of flooding. Alcoholic fermentation rates accelerated within the first month of flooding but dropped to...
Sea otter predation and community organization in the western Aleutian Island, Alaska
J. E. Estes, N. S. Smith, J. F. Palmisano
1978, Ecology (59) 822-833
Predation by the sea otter (Enhydra lutris) limits epibenthic invertebrates, especially sea urchins (Strongylocentrotus polyacanthus), in turn allowing a luxuriant development of the macroalgal canopy. Where sea otters are abundant, sea urchins are small and scarce in shallow water, and the association of fleshy macroalgae apparently is regulated by competition....
Net energy maintenance requirements of salmonids as measured by direct calorimetry: Effect of body size and environmental temperature
R. R. Smith, G. L. Rumsey, M. L. Scott
1978, Journal of Nutrition (108) 1017-1024
Most studies of metabolic rates and energy requirements in aquatic animals have been conducted using indirect methods wherein heat production estimates were based on O2 consumed and CO2 produced. The purpose of the present study was to determine the feasibility of direct calorimetry as a method for measuring heat production of fish...
Evaluation of an aerial survey of Pacific walruses
J. A. Estes, James R. Gilbert
1978, Journal of the Fisheries Research Board of Canada (35) 1130-1140
An aerial survey of Pacific walruses (Odobenus rosmarus divergens) was evaluated to determine the reliability of estimates of population abundance. The probability of detecting groups of walruses on the pack ice remained uniform to at least 0.93 km from the flight line, whereas the probability of detection decreased significantly beyond 0.23 km...
Two migratory thrushes and the African pitta in coastal Kenya
P.L. Britton, G. B. Rathbun
1978, Scopus (2) 11-17
Mars synthetic topographic mapping
S.S.C. Wu
1978, Icarus (33) 417-440
Topographic contour maps of Mars are compiled by the synthesis of data acquired from various scientific experiments of the Mariner 9 mission, including S-band radio-occulation, the ultraviolet spectrometer (UVS), the infrared radiometer (IRR), the infrared interferometer spectrometer (IRIS) and television imagery, as well as Earth-based radar information collected at Goldstone,...
Distinctive sedimentary features of cold-climate eolian deposits, North Park, Colorado
Thomas S. Ahlbrandt, S. Andrews
1978, Palaeogeography, Palaeoclimatology, Palaeoecology (25) 327-351
Cold-climate eolianites contain diagnostic sedimentary features that contrast with the sedimentary features of warm-climate eolianites. Distinctive tensional, compressional, and dissipation sedimentary structures related to freezing, thawing and snow melting characterize eolian dune-sand deposits in North Park, Colorado. The North Park dunes have few of the characteristics considered to be diagnostic...
Distribution of rutile in metamorphic rocks and implications for placer deposits
R. Goldsmith, E. R. Force
1978, Mineralium Deposita (13) 329-343
Pelitic units in the eastern Great Smoky Mountains of the North Carolina Blue Ridge contain rutile grains only in kyanite and higher zones. Adjacent non-pelitic rocks do not contain rutile at kyanite grade but commonly contain sphene. Detrital rutile breaks down at metamorphic grades lower than those at which metamorphic...
Induction of auroral zone electric currents within the Alaska pipeline
W.H. Campbell
1978, Pure and Applied Geophysics PAGEOPH (116) 1143-1173
The Alaskar pipeline is a highly conducting anomaly extending 800 miles (1300 km) from about 62?? to 69?? geomagnetic latitude beneath the most active regions of the ionospheric electrojet current. The spectral behavior of the magnetic field from this current was analyzed using data from standard geomagnetic observatories to establish...
The solubility of the noble gases He, Ne, Ar, Kr, and Xe in water up to the critical point
R.W. Potter II, M.A. Clynne
1978, Journal of Solution Chemistry (7) 837-844
The solubility of the noble gases Ar, He, Ne, Kr, and Xe in pure water was measured from 298 to 561??K. These data in turn were extrapolated to the critical point of water, thus providing a complete set of Henry's law constants from 274 to 647??K when combined with the...
Decomposition of hydroxy amino acids in foraminiferal tests; kinetics, mechanism and geochronological implications
J.L. Bada, M.-Y. Shou, E.H. Man, R. A. Schroeder
1978, Earth and Planetary Science Letters (41) 67-76
The diagenesis of the hydroxy amino acids serine and threonine in foraminiferal tests has been investigated. The decomposition pathways of these amino acids are complex; the principal reactions appear to be dehydration, aldol cleavage and decarboxylation. Stereochemical studies indicate that the...
Friction of rocks
J. Byerlee
1978, Pure and Applied Geophysics PAGEOPH (116) 615-626
Experimental results in the published literature show that at low normal stress the shear stress required to slide one rock over another varies widely between experiments. This is because at low stress rock friction is strongly dependent on surface roughness. At high normal stress that effect is diminished and the...
Time-dependent friction and the mechanics of stick-slip
James H. Dieterich
1978, Pure and Applied Geophysics PAGEOPH (116) 790-806
Time-dependent increase of static friction is characteristic of rock friction undera variety of experimental circumstances. Data presented here show an analogous velocity-dependent effect. A theor of friction is proposed that establishes a common basis for static and sliding friction. Creep at points of contact causes increases in friction that are...
Zur chemie der marsoberfläche
Klaus Keil, Benton C. Clark, A. K. Baird, Priestley Toulmin III, Harry J. Rose Jr.
1978, Die Naturwissenschaften (65) 231-238
Analyses of 13 samples of Martian surface materials with the Viking X-ray fluorescence spectrometers show SiO2 similar to that of terrestrial mafic rocks, whereas Fe2O3, Cl, and S are higher and Al2O3, K2O, Rb, Sr, Y, and Zr are lower. Low totals suggest presence of CO2, H2O, and Na2O. Duricrust fragments...
Revised values for the Gibbs free energy of formation of [Al(OH)4 aq-], diaspore, boehmite and bayerite at 298.15 K and 1 bar, the thermodynamic properties of kaolinite to 800 K and 1 bar, and the heats of solution of several gibbsite samples
B. S. Hemingway, R. A. Robie, J.A. Kittrick
1978, Geochimica et Cosmochimica Acta (42) 1533-1543
Solution calorimetric measurements compared with solubility determinations from the literature for the same samples of gibbsite have provided a direct thermochemical cycle through which the Gibbs free energy of formation of [Al(OH)4 aq−] can be determined. The Gibbs free energy of formation of [Al(OH)4 aq−] at 298.15 K is −1305...
Velocity anomalies: An alternative explanation based on data from laboratory experiments
D.A. Lockner, J.D. Byerlee
1978, Pure and Applied Geophysics PAGEOPH (116) 765-772
Locations and velocities were calculated for microseisms occurring in samples of rock subjected to triaxial loading and injection of pore fluid. This was accomplished by analyzing arrival times of acoustic emission using an automatic first arrival picker. Apparent velocity anomalies were observed prior to both failure of intact samples and...
Map and table describing metalliferous and selected nonmetalliferous mineral deposits, Talkeetna Mountains quadrangle, Alaska
Bela Csejtey Jr., R. J. Miller
1978, Open-File Report 78-558-B
No abstract available....
Map showing geochemical distribution and abundance of gold in stream sediments and heavy mineral concentrates, Talkeetna Mountains quadrangle, Alaska
R. J. Miller, G.C. Curtin, Bela Csejtey Jr.
1978, Open-File Report 78-558-H
No abstract available....
Map showing geochemical distribution and abundance of silver in stream sediments and heavy mineral concentrates, Talkeetna Mountains quadrangle, Alaska
R. J. Miller, G.C. Curtin, Bela Csejtey Jr.
1978, Open-File Report 78-558-G
No abstract available....
Map showing zinc determined by atomic absorption in stream sediments, Ketchikan and Prince Rupert quadrangles, Alaska
Richard D. Koch, Raymond L. Elliott, M. J. Diggles
1978, Open-File Report 78-73-E
No abstract available....
Drill-hole location maps, Carlsbad mining district, Eddy and Lea Counties, New Mexico
Water Resources Division, U.S. Geological Survey
1978, Open-File Report 79-251
No abstract available....
Underway seismic data collected on U.S.G.S. Cruise S6-77, southeastern Bering Sea
James V. Gardner, T.L. Vallier
1978, Open-File Report 78-322
No abstract available....
