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Page 2855, results 71351 - 71375

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Not all publications have extents, not all extents are completely accurate
Induction of lupus autoantibodies by adjuvants
M. Satoh, Y. Kuroda, H. Yoshida, K.M. Behney, A. Mizutani, J. Akaogi, D.C. Nacionales, T.D. Lorenson, R.J. Rosenbauer, W.H. Reeves
2003, Journal of Autoimmunity (21) 1-9
Exposure to the hydrocarbon oil pristane induces lupus specific autoantibodies in non-autoimmune mice. We investigated whether the capacity to induce lupus-like autoimmunity is a unique property of pristane or is shared by other adjuvant oils. Seven groups of 3-month-old female BALB/cJ mice received a single intraperitoneal injection of pristane, squalene...
Factors influencing the variation in capture rates of shrews in southern California, USA
Juha Laakkonen, Robert N. Fisher, Ted J. Case
2003, Acta Theriologica (48) 157-166
We examined the temporal variation in capture rates of shrewsNotiosorex crawfordi (Coues, 1877) and Sorex ornatus (Merriam, 1895) in 20 sites representing fragmented and continuous habitats in southern California, USA. InN. crawfordi, the temporal variation was significantly correlated with the mean capture rates. Of the 6 landscape...
Exploration and discovery in Yellowstone Lake: Results from high-resolution sonar imaging, seismic reflection profiling, and submersible studies
L. A. Morgan, Wayne C. Shanks, D. A. Lovalvo, S. Y. Johnson, W. J. Stephenson, K. L. Pierce, S. S. Harlan, C. A. Finn, G. Lee, M. Webring, B. Schulze, J. Duhn, R. Sweeney, L. Balistrieri
2003, Journal of Volcanology and Geothermal Research (122) 221-242
Discoveries from multi-beam sonar mapping and seismic reflection surveys of the northern, central, and West Thumb basins of Yellowstone Lake provide new insight into the extent of post-collapse volcanism and active hydrothermal processes occurring in a large lake environment above a large magma...
Support of total maximum daily load programs using spatially referenced regression models
G. McMahon, R. B. Alexander, S. Qian
2003, Journal of Water Resources Planning and Management (129) 315-329
The spatially referenced regressions on watershed attributes modeling approach, as applied to predictions of total nitrogen flux in three North Carolina river basins, addresses several information needs identified by a National Research Council evaluation of the total maximum daily load program. The model provides reach-level predictions of the probability of...
Using semipermeable membrane devices (SPMDs) to assess the toxicity and teratogenicity of aquatic amphibian habitats
C.M. Bridges, E. E. Little
Gregory L. Linder, S. Krest, Don Sparling, Edward Little, editor(s)
2003, ASTM Special Technical Publication STP1443
Environmental contamination has been suspected of being partially responsible for recent declines in amphibian populations. It is often not feasible to identify all of the compounds in an environment, nor the concentrations in which they are present. SPMDs are passive sampling devices that uptake lipophilic compounds from the environment in...
Nocturnal activity by diurnal lizards (Sceloporus jarrovi, S. virgatus) eaten by small owls (Glaucidium gnoma, Otus trichopsis)
W.W. Duncan, F.R. Gehlbach, G. A. Middendorf III
2003, Southwestern Naturalist (48) 218-222
Whiskered screech-owls (Otus trichopsis) and northern pygmy-owls (Glaucidium gnoma) delivered freshly caught Yarrow's spiny lizards (Sceloporus jarrovi) and striped plateau lizards (S. virgatus) to nestlings from dusk to dark in southeastern Arizona. This observation stimulated studies of the prey deliveries by the owls and lizard activity patterns, because the lizards...
Long-term change in eelgrass distribution at Bahía San Quintín, Baja California, Mexico, using satellite imagery
David H. Ward, Alexandra Morton, T. Lee Tibbitts, David C. Douglas, Eduardo Carrera-Gonzalez
2003, Estuaries (26) 1529-1539
Seagrasses are critically important components of many marine coastal and estuarine ecosystems, but are declining worldwide. Spatial change in distribution of eelgrass, Zostera marina L., was assessed at Bahía San Quintín, Baja California, Mexico, using a map to map comparison of data interpreted from a 1987 Satellite Pour l'Observation...
PCR primers for microsatellite loci in the desert tortoise (Gopherus agassizii, Testudinidae)
T. Edwards, C.S. Goldberg, M.E. Kaplan, C.R. Schwalbe, D.E. Swann
2003, Molecular Ecology Notes (3) 589-591
The desert tortoise, Gopherus agassizii, is a threatened species native to the North American desert southwest and is recognized as having distinct Mojave and Sonoran populations. We identified six polymorphic microsatellite loci in the desert tortoise. All six loci were polymorphic in Sonoran samples. Five of the loci were variable...
Low-head sea lamprey barrier effects on stream habitat and fish communities in the Great Lakes basin
H.R. Dodd, D.B. Hayes, J.R. Baylis, L.M. Carl, J.D. Goldstein, R. L. McLaughlin, D.L.G. Noakes, L.M. Porto, M.L. Jones
2003, Conference Paper, Journal of Great Lakes Research
Low-head barriers are used to block adult sea lamprey (Petromyzon marinus) from upstream spawning habitat. However, these barriers may impact stream fish communities through restriction of fish movement and habitat alteration. During the summer of 1996, the fish community and habitat conditions in twenty-four stream pairs were sampled across the...
Seasonal and spatial distribution of bacterial biomass and the percentage of viable cells in a reservoir of Alabama
T.E. Tietjen, R.G. Wetzel
2003, Journal of Plankton Research (25) 1521-1534
Spatial community dynamics of bacterioplankton were evaluated along the length of the former stream channel of Elledge Lake, a small reservoir in western Alabama. The reservoir was strongly stratified from April to October with up to a 10??C temperature difference across the 1 m deep metalimnion. Bacterial biomass was highest...
Budgeting postglacial sedimentation history on the Santa Cruz, California mid-continental shelf
E. E. Grossman, S.L. Eittreim, D.M. Hanes, M.E. Field, B. D. Edwards, S.J. Fallon, R. J. Anima
2003, Conference Paper, Oceans Conference record
High-resolution seismic reflection profiling and surface texture mapping of the central California continental shelf, reveal a prominent subsurface reflector interpreted as a low stand erosion surface and an overlying mudbelt that covers 421 km2 of the mid-shelf in depths of 40-90 m. Radiometric and sedimentologic analyses of samples from vibracores...
Vegetation, soil, and flooding relationships in a blackwater floodplain forest
M.K. Burke, S.L. King, D. Gartner, M.H. Eisenbies
2003, Wetlands (23) 988-1002
Hydroperiod is considered the primary determinant of plant species distribution in temperate floodplain forests, but most studies have focused on alluvial (sediment-laden) river systems. Few studies have evaluated plant community relationships in blackwater river systems of the South Atlantic Coastal Plain of North America. In this study, we characterized the...
Gunbarrel mafic magmatic event: A key 780 Ma time marker for Rodinia plate reconstructions
S. S. Harlan, L. Heaman, A.N. LeCheminant, W. R. Premo
2003, Geology (31) 1053-1056
Precise U-Pb baddeleyite dating of mafic igneous rocks provides evidence for a widespread and synchronous magmatic event that extended for >2400 km along the western margin of the Neoproterozoic Laurentian craton. U-Pb baddeleyite analyses for eight intrusions from seven localities ranging from the northern Canadian Shield to northwestern Wyoming-southwestern Montana...
Comparative hydraulics of two fishery research circular tanks and recommendations for control of experimental bias
M. Odeh, R. M. Schrock, A. Gannam
2003, Journal of Applied Aquaculture (14) 1-23
Hydraulic characteristics inside two research circular tanks (1.5-m and 1.2-m diameter) with the same volume of water were studied to understand how they might affect experimental bias by influencing the behavior and development of juvenile fish. Water velocities inside each tank were documented extensively and flow behavior studied. Surface inflow...
Effects of desert wildfires on desert tortoise (Gopherus agassizii) and other small vertebrates
T. C. Esque, C.R. Schwalbe, L.A. DeFalco, R.B. Duncan, T.J. Hughes
2003, Southwestern Naturalist (48) 103-110
We report the results of standardized surveys to determine the effects of wildfires on desert tortoises (Gopherus agassizii) and their habitats in the northeastern Mojave Desert and northeastern Sonoran Desert. Portions of 6 burned areas (118 to 1,750 ha) were examined for signs of mortality of vertebrates....
A stepwise regression tree for nonlinear approximation: applications to estimating subpixel land cover
C. Huang, J.R.G. Townshend
2003, International Journal of Remote Sensing (24) 75-90
A stepwise regression tree (SRT) algorithm was developed for approximating complex nonlinear relationships. Based on the regression tree of Breiman et al . (BRT) and a stepwise linear regression (SLR) method, this algorithm represents an improvement over SLR in that it can approximate nonlinear relationships and over BRT in that...
Current versus future reproduction: an experimental test of parental investment decisions using nest desertion by mallards (Anas platyrhynchos)
Joshua T. Ackerman, J.M. Eadie
2003, Behavioral Ecology and Sociobiology (54) 264-273
Past investment in offspring may be important in determining a parent's ability to reproduce in the future and, hence, should affect the relative value of current offspring. However, there have been surprisingly few clear tests of whether animals actually adjust parental care in response to diminished opportunities for future reproduction....
Methods for using groundwater model predictions to guide hydrogeologic data collection, with application to the Death Valley regional groundwater flow system
C. R. Tiedeman, M. C. Hill, F. A. D’Agnese, C.C. Faunt
2003, Water Resources Research (39)
Calibrated models of groundwater systems can provide substantial information for guiding data collection. This work considers using such models to guide hydrogeologic data collection for improving model predictions by identifying model parameters that are most important to the predictions. Identification of these important parameters can help guide collection of field...
Athena Mars rover science investigation
S. W. Squyres, R. E. Arvidson, E.T. Baumgartner, J.F. Bell III, P. R. Christensen, S. Gorevan, K. E. Herkenhoff, G. Klingelhofer, M.B. Madsen, R.V. Morris, R. Rieder, R.A. Romero
2003, Journal of Geophysical Research E: Planets (108)
Each Mars Exploration Rover carries an integrated suite of scientific instruments and tools called the Athena science payload. The primary objective of the Athena science investigation is to explore two sites on the Martian surface where water may once have been present, and to assess past environmental conditions at those...
Field evaluation of boat-mounted acoustic Doppler instruments used to measure streamflow
D. S. Mueller
Rizoli J.A., editor(s)
2003, Conference Paper, Proceedings of the IEEE Working Conference on Current Measurement
The use of instruments based on the Doppler principle for measuring water velocity and computing discharge is common within the U.S. Geological Survey (USGS). The instruments and software have changed appreciably during the last 5 years; therefore, the USGS has begun field validation of the instruments used to make discharge...
Removal of dissolved textile dyes from wastewater by a compost sorbent
L.S. Tsui, William R. Roy, M.A. Cole
2003, Coloration Technology (119) 14-18
The objective of this study was to evaluate the potential for treating dye-contaminated waste streams by sorption using compost as a low-cost sorbent. A mature, thermophilic compost sample was used to sorb CI Acid Black 24, CI Acid Orange 74, CI Basic Blue 9, CI Basic Green 4, CI Direct...
Temperature, pressure, and compositional effects on anomalous or "self" preservation of gas hydrates
L.A. Stern, S. Circone, S. H. Kirby, W.B. Durham
2003, Canadian Journal of Physics (81) 271-283
We previously reported on a thermal regime where pure, polycrystalline methane hydrate is preserved metastably in bulk at up to 75 K above its nominal temperature stability limit of 193 K at 0.1 MPa, following rapid release of the sample pore pressure. Large fractions (>50 vol.%) of methane hydrate can...
Stratigraphy, geochronology, and accretionary terrane settings of two Bronson Hill arc sequences, northern New England
R. H. Moench, J. N. Aleinikoff
2003, Physics and Chemistry of the Earth (28) 113-160
The Ammonoosuc Volcanics, Partridge Formation, and the Oliverian and Highlandcroft Plutonic Suites of the Bronson Hill anticlinorium (BHA) in axial New England are widely accepted as a single Middle to Late Ordovician magmatic arc that was active during closure of Iapetus. Mapping and U–Pb dating indicate, however, that the BHA...
High precision earthquake locations reveal seismogenic structure beneath Mammoth Mountain, California
Stephanie G. Prejean, Anna Stork, William L. Ellsworth, David Hill, Bruce R. Julian
2003, Geophysical Research Letters (30)
In 1989, an unusual earthquake swarm occurred beneath Mammoth Mountain that was probably associated with magmatic intrusion. To improve our understanding of this swarm, we relocated Mammoth Mountain earthquakes using a double difference algorithm. Relocated hypocenters reveal that most earthquakes occurred on two structures, a near-vertical plane at 7–9 km...
Importance of geology to fisheries management: Examples from the northeastern Gulf of Mexico
Kathryn M. Scanlon, Christopher C. Koenig, Felicia C. Coleman, Margaret W. Miller
2003, American Fisheries Society Symposium (2003) 95-99
Seafloor mapping of shelf-edge habitats in the northeastern Gulf of Mexico demonstrates how sidescan-sonar imagery, seismic-reflection profiling, video data, geologic mapping, sediment sampling, and understanding the regional geologic history can enhance, support, and guide traditional fisheries research and management. New data from the Madison Swanson and Steamboat Lumps Marine Reserves...