The problem of complex eigensystems in the semianalytical solution for advancement of time in solute transport simulations: a new method using real arithmetic
Amjad M.J. Umari, Steven M. Gorelick
1986, Water Resources Research (22) 1149-1154
In the numerical modeling of groundwater solute transport, explicit solutions may be obtained for the concentration field at any future time without computing concentrations at intermediate times. The spatial variables are discretized and time is left continuous in the governing differential equation. These semianalytical solutions have been presented in the...
Urea cycle activity and arginine formation in rainbow trout (Salmo gairdneri)
Y. N. Chiu, R. E. Austic, G. L. Rumsey
1986, Journal of Nutrition (116) 1640-1650
Studies were conducted to determine whether rainbow trout fingerlings possess the ability to synthesize arginine via the urea cycle. Several urea cycle enzymes were detected in trout tissues. An experiment was conducted to determine whether the enzymes increase in response to starvation or in response to dietary protein level (0,...
Analytical results and sample locality map of heavy-mineral-concentrate and rock samples from the Fort Piute Wilderness Study Area (CDCA- 267), San Bernardino County, California
B. M. Adrian, J. G. Frisken, Paul H. Briggs, L. A. Bradley, J.G. Crock
1986, Open-File Report 86-584
No abstract available....
Effect of exogenous corticosteroids on circulating virus and neutralizing antibodies in striped bass (Morone saxatilis) infected with infectious pancreatic necrosis virus
S.J. Wechsler, P. E. McAllister, F. M. Hetrick, D. P. Anderson
1986, Veterinary Immunology and Immunopathology (12) 305-311
You asked for it! The fathead minnow: an overview on propagation, culturing, and uses
M. Martin
1986, Aquaculture Magazine (12) 48-51
You asked for it! Re-inventing the wheel: raceway production of catfish
M. Martin
1986, Aquaculture Magazine (12) 40-41
You asked for it! A review of new handout publications and aquaculture papers presented at the 39th Annual Conference of the Southeastern Association of Fish and Wildlife Agencies
M. Martin
1986, Aquaculture Magazine (12) 39-42
Antimicrobials and fish: a review of drugs used to treat bacterial diseases of channel catfish and rainbow trout
R. L. Herman, G. L. Bullock
1986, Veterinary and Human Toxicology (28 Supp 1) 11-17
The evolution of young silicic lavas at Medicine Lake Volcano, California: Implications for the origin of compositional gaps in calc-alkaline series lavas
T.L. Grove, J.M. Donnelly-Nolan
1986, Contributions to Mineralogy and Petrology (92) 281-302
At Medicine Lake Volcano, California, the compositional gap between andesite (57-62 wt.% SiO2) and rhyolite (73-74 wt.% SiO2) has been generated by fractional crystallization. Assimilation of silicic crust has also occurred along with fractionation. Two varieties of inclusions found in Holocene rhyolite flows, hornblende gabbros and aphyric andesites, provide information...
Paleodrainages of the Eastern Sahara-The radar rivers revisited (SIR-A/B Implications for a Mid-Tertiary Trans-Afnrcan Drainage System)
John F. McCauley, Carlos S. Breed, Gerald G. Schaber, William P. McHugh, Bahay Issawi, C. Vance Haynes, Maurice J. Grolier, Ali El Kilani
1986, IEEE Transactions on Geoscience and Remote Sensing (GE-24) 624-648
A complex history of Cenozoic fluvial activity in the presently hyperarid Eastern Sahara is inferred from SIR data and postflight field investigations in southwest Egypt and northwest Sudan. SIR images were coregistered with Landsat and existing maps as a guide to exploration of the buried paleodrainages (radar rivers) first discovered...
Isotope geochemistry of recent magmatism in the Aegean arc: Sr, Nd, Hf, and O isotopic ratios in the lavas of Milos and Santorini-geodynamic implications
L. Briqueu, M. Javoy, J.R. Lancelot, M. Tatsumoto
1986, Earth and Planetary Science Letters (80) 41-54
In this comparative study of variations in the isotopic compositions (Sr, Nd, O and Hf) of the calc-alkaline magmas of the largest two volcanoes, Milos and Santorini, of the Aegean arc (eastern Mediterranean) we demonstrate the complexity of the processes governing the evolution of the magmas on the scale both...
PERSPECTIVE ON LANDSLIDE DAMS.
Robert L. Schuster, John E. Costa
Schuster Robert L., editor(s)
1986, Conference Paper
The most common types of mass movements that form landslide dams are rock and soil slumps and slides; mud, debris, and earth flows: and rock and debris avalanches. The most common initiation mechanisms for dam-forming landslides are excessive rainfall and snow melt, and earthquakes. Most landslide dams are remarkable short-lived....
Pb-, Sr- and Nd-Isotopic systematics and chemical characteristics of cenozoic basalts, Eastern China
Z. C. Peng, R. E. Zartman, K. Futa, D.G. Chen
1986, Chemical Geology (59) 3-33
Forty-eight Paleogene, Neogene and Quaternary basaltic rocks from northeastern and east-central China have been analyzed for major-element composition, selected trace-element contents, and Pb, Sr and Nd isotopic systematics. The study area lies entirely within the marginal Pacific tectonic domain. Proceeding east to...
Strategies for reducing risks from introductions of aquatic organisms: A philosophical perspective
W.R. Courtenay Jr., J.N. Taylor
1986, Fisheries (11) 30-33
North American waters contain a variety of introduced aquatic plants, invertebrates and fishes. Many species are exotic (of foreign origin) but most are transplants of native forms. While carelessness and accidental releases have led to establishment of the majority of introduced aquatic organisms, a significant number have been purposefully or...
Predicting two-dimensional steady-state soil freezing fronts using the CVBEM
T. V. Hromadka II
1986, Journal of Heat Transfer (108) 235-237
The complex variable boundary element method (CVBEM) is used instead of a real variable boundary element method due to the available modeling error evaluation techniques developed. The modeling accuracy is evaluated by the model-user in the determination of an approximative boundary upon which the CVBEM provides an exact solution. Although...
An incidence of twinning in the sea otter (Enhydra lutris)
Ronald J. Jameson, James L. Bodkin
1986, Marine Mammal Science (2) 305-309
On 3 October 1984 at 0928 h (PST) near Pt. San Simeon, California (35°39’N, 121°11’W), we observed a female sea otter (Enhydra lutris) resting in a kelp bed (Macrocystis pyrifera) with a small pup on her chest; approximately 2 m away another small pup floated unattended in the kelp. The...
Dune stabilization on San Miguel Island off the coast of southern California
W. L. Halvorson, R. E. Koske, D.P. Morris
1986, Restoration & Management Notes (4) 35-35
No abstract available....
Desert tortoise (Gopherus agassizii) relocation: implications of social behavior and movements
K.H. Berry
1986, Herpetologica (42) 113-125
Influence of weather and density on lamb survival of desert mountain sheep
Charles L. Douglas, David M. Leslie Jr.
1986, Journal of Wildlife Management (50) 153-156
This report concerns the effect of weather on lamb survival in desert mountain sheep (Ovis canadensis nelsoni) to 6-8 months of age in the River Mountains, Nevada, and how it integrates with density to limit the population. Regression analyses were used to examine relationships between lamb survival and weather variables...
Effect of height and orientation (microclimate) on geomorphic degradation rates and processes, late-glacial terrace scarps in central Idaho
K. L. Pierce, Steven M. Colman
1986, Geological Society of America Bulletin (97) 869-885
Skip Nav DestinationRESEARCH ARTICLE| JULY 01, 1986Effect of height and orientation (microclimate) on geomorphic degradation rates and processes, late-glacial terrace scarps in central Idaho <i...
Past and present status of polar bears in Alaska
Steven C. Amstrup, Ian Stirling, J. Lentfer
1986, Wildlife Society Bulletin (14) 241-254
No abstract available....
Lake Devlin and Pinedale glacial history, front range, Colorado
R.F. Madole
1986, Quaternary Research (25) 43-54
Glacial Lake Devlin was an ice-margin lake that formed during Pinedale time when the North Boulder Creek valley glacier blocked the mouth of a tributary near the downvalley limit of glaciation. The lake was about 2 km long and as much as 60 m deep, and was fed by meltwater...
Reservoir processes and fluid origins in the Baca geothermal system, Valles Caldera, New Mexico
A.H. Truesdell, C. J. Janik
1986, Journal of Geophysical Research Solid Earth (91) 1817-1833
At the Baca geothermal field in the Valles caldera, New Mexico, 19 deep wells were drilled in an attempt to develop a 50-MWe (megawatts electric) power plant. The chemical and isotopic compositions of steam and water samples have been used to indicate uniquely the origin of reservoir fluids and natural reservoir...
Thermal comfort of the elderly is affected by clothing, activity and psychological adjustment
K. Cena, J.R. Spotila, H.W. Avery
1986, Transactions of the American Society of Heating, Refrigerating, and Air-conditioning Engineers (ASHRAE) (96) 329-342
Adaptation of Selenastrum capricornutum (Chlorophyceae) to copper
J.S. Kuwabara, H.V. Leland
1986, Environmental Toxicology and Chemistry (5) 197-203
Selenastrum capricornutum Printz, growing in a chemically defined medium, was used as a model for studying adaptation of algae to a toxic metal (copper) ion. Cells exhibited lag‐phase adaptation to 0.8 μM total Cu (10−12 M free ion concentration) after 20 generations of Cu exposure. Selenastrum adapted to the same...
