Nuclear transfer of synchronized African wild cat somatic cells into enucleated domestic cat oocytes
M.C. Gomez, J.A. Jenkins, A. Giraldo, R.F. Harris, A. King, B.L. Dresser, C.E. Pope
2003, Biology of Reproduction (69) 1032-1041
The African wild cat is one of the smallest wild cats and its future is threatened by hybridization with domestic cats. Nuclear transfer, a valuable tool for retaining genetic variability, offers the possibility of species continuation rather than extinction. The aim of this study was to investigate the ability of...
Late Pleistocene to Holocene slip rates for the Gurvan Bulag thrust fault (Gobi-Altay, Mongolia) estimated with 10Be dates
J.-F. Ritz, D. Bourles, E.T. Brown, S. Carretier, J. Chery, B. Enhtuvshin, P. Galsan, R.C. Finkel, Thomas C. Hanks, K.J. Kendrick, H. Philip, G. Raisbeck, A. Schlupp, David P. Schwartz, F. Yiou
2003, Journal of Geophysical Research B: Solid Earth (108)
We surveyed morphotectonic markers along the central part of the Gurvan Bulag thrust, a fault that ruptured with the Bogd fault during the Gobi-Altay earthquake (1957, M 8.3), to document climatic and tectonic processes along the fault for the late Pleistocene- Holocene period. The markers were dated using 10Be produced...
Measurement of in vitro leucocyte mitogenesis in fish: ELISA based detection of the thymidine analogue 5'-bromo-2'-deoxyuridine
David T. Gauthier, Deborah D. Cartwright, Christine L. Densmore, Vicki Blazer, Christopher A. Ottinger
2003, Fish and Shellfish Immunology (14) 279-288
In this study we present a method for the measurement of in vitro mitogenesis in fish leucocytes that is based on the incorporation of the thymidine analogue 5′-bromo-2′-deoxyuridine (BrdU) into the DNA of replicating cells, followed by ELISA-based detection. This technique, adapted from methods developed for mammalian cells, operates on a similar...
The 1997 eruption of Okmok Volcano, Alaska: A synthesis of remotely sensed imagery
M.R. Patrick, J. Dehn, K.R. Papp, Z. Lu, K. Dean, L. Moxey, P. Izbekov, R. Guritz
2003, Journal of Volcanology and Geothermal Research (127) 87-105
Okmok Volcano, in the eastern Aleutian Islands, erupted in February and March of 1997 producing a 6-km-long lava flow and low-level ash plumes. This caldera is one of the most active in the Aleutian Arc, and is now the focus of international multidisciplinary studies. A synthesis of remotely sensed data...
Temperature dependence of polyhedral cage volumes in clathrate hydrates
B.C. Chakoumakos, C.J. Rawn, A.J. Rondinone, L.A. Stern, S. Circone, S. H. Kirby, Y. Ishii, C.Y. Jones, B.H. Toby
2003, Canadian Journal of Physics (81) 183-189
The polyhedral cage volumes of structure I (sI) (carbon dioxide, methane, trimethylene oxide) and structure II (sII) (methane-ethane, propane, tetrahydrofuran, trimethylene oxide) hydrates are computed from atomic positions determined from neutron powder-diffraction data. The ideal structural formulas for sI and sII are, respectively, S2L6 ?? 46H2O and S16L???8 ?? 136H2O,...
Palynology, petrography and geochemistry of the Sewickley coal bed (Monongahela Group, Late Pennsylvanian), Northern Appalachian Basin, USA
C.F. Eble, B.S. Pierce, W.C. Grady
2003, International Journal of Coal Geology (55) 187-204
Forty-two bench samples of the Sewickley coal bed were collected from seven localities in the northern Appalachian Basin and analyzed palynologically, petrographically, and geochemically. The Sewickley coal bed occurs in the middle of the Pittsburgh Formation (Monongahela Group) and is of Late Pennsylvanian age. Palynologically, it is dominated by spores...
Baseflow and stormflow metal fluxes from two small agricultural catchments in the Coastal Plain of the Chesapeake Bay Basin, United States
C.V. Miller, G.D. Foster, B.F. Majedi
2003, Applied Geochemistry (18) 483-501
Annual yields (fluxes per unit area) of Al, Mn, Fe, Ni, Cd, Pb, Zn, Cu, Cr, Co, As and Se were estimated for two small non-tidal stream catchments on the Eastern Shore of the Chesapeake Bay, United States - a poorly drained dissected-upland watershed in the Nanticoke River Basin, and...
Geographical distribution of organochlorine pesticides (OCPs) in polar bears (Ursus maritimus) in the Norwegian and Russian Arctic
E. Lie, A. Bernhoft, F. Riget, Stanislav Belikov, Andrei N. Boltunov, A.E. Derocher, G.W. Garner, O. Wiig, J.U. Skaare
2003, Science of the Total Environment (306) 159-170
Geographical variation of organochlorine pesticides (OCPs) was studied in blood samples from 90 adult female polar bear (Ursus maritimus) from Svalbard, Franz Josef Land, Kara Sea, East-Siberian Sea and Chukchi Sea. In all regions, oxychlordane was the dominant OCP. Regional differences in mean levels of HCB, oxychlordane, trans-nonachlor, ??-HCH, ??-HCH...
Fluid flow in the resurgent dome of Long Valley Caldera: Implications from thermal data and deep electrical sounding
D.F.C. Pribnow, C. Schutze, S.J. Hurter, C. Flechsig, J.H. Sass
2003, Journal of Volcanology and Geothermal Research (127) 329-345
Temperatures of 100??C are measured at 3 km depth in a well located on the resurgent dome in the center of Long Valley Caldera, California, despite an assumed >800??C magma chamber at 6-8 km depth. Local downflow of cold meteoric water as a process for cooling the resurgent dome is...
Environmental fate and effects of the lampricide Bayluscide: A review
V. K. Dawson
2003, Conference Paper
Bayluscide is an additive to TFM that increases the effectiveness of TFM as a lampricide. A review of the literature was undertaken to determine the environmental fate and effects of Bayluscide. Niclosamide (2′, 5-dichloro-4′-nitrosalicylanilide), the active ingredient of Bayluscide, degrades rapidly in natural water and sediment systems, however, the rate...
The sedimentary record of climatic and anthropogenic influence on the Patuxent estuary and Chesapeake Bay ecosystems
T. M. Cronin, C.D. Vann
2003, Estuaries (26) 196-209
Ecological and paleoecological studies from the Patuxent River mouth reveal dynamic variations in benthic ostracode assemblages over the past 600 years due to climatic and anthropogenic factors. Prior to the late 20th century, centennial-scale changes in species dominance were influenced by climatic and hydrological factors that primarily affected salinity and...
Excess nitrogen in selected thermal and mineral springs of the Cascade Range in northern California, Oregon, and Washington: Sedimentary or volcanic in origin?
Robert H. Mariner, William C. Evans, T. S. Presser, L. D. White
2003, Journal of Volcanology and Geothermal Research (121) 99-114
Anomalous N2/Ar values occur in many thermal springs and mineral springs, some volcanic fumaroles, and at least one acid-sulfate spring of the Cascade Range. Our data show that N2/Ar values are as high as 300 in gas from some of the hot springs, as...
Photographic techniques for characterizing streambed particle sizes
Matthew S. Whitman, Edward H. Moran, Robert T. Ourso
2003, Transactions of the American Fisheries Society (132) 605-610
We developed photographic techniques to characterize coarse (>2-mm) and fine (≤2-mm) streambed particle sizes in 12 streams in Anchorage, Alaska. Results were compared with current sampling techniques to assess which provided greater sampling efficiency and accuracy. The streams sampled were wadeable and contained gravel—cobble streambeds. Gradients ranged from about 5%...
The Hula Valley subsurface structure inferred from gravity data
M. Rybakov, L. Fleischer, Uri S. ten Brink
2003, Israel Journal of Earth Sciences (52) 113-122
We use the 3-D gravity inversion technique to model the shape of the Hula basin, a pull-apart basin along the Dead Sea Transform. The interpretation was constrained using the Notera-3-well density logs and current geological knowledge. The model obtained by inversion shows a rhomb-shaped graben filled with approximately 4 km...
Phylogeography of Canada Geese (Branta canadensis) in western North America
Kim T. Scribner, Sandra L. Talbot, John M. Pearce, Barbara J. Pierson, K.S. Bollinger, Dirk V. Derksen
2003, The Auk (120) 889-907
Using molecular genetic markers that differ in mode of inheritance and rate of evolution, we examined levels and partitioning of genetic variation for seven nominal subspecies (11 breeding populations) of Canada Geese (Branta canadensis) in western North America. Gene trees constructed from mtDNA control region sequence data show that subspecies...
Comparisons of coarse and fine versions of two carbons for reducing the bioavailabilities of sediment-bound hydrophobic organic contaminants
J.A. Lebo, J.N. Huckins, J. D. Petty, W.L. Cranor, K.T. Ho
2003, Chemosphere (50) 1309-1317
Coarse (whole) and finely ground Ambersorb 1500 and coarse and fine coconut charcoal were compared as to their efficiencies in scavenging organic contaminants desorbed from sediment. Aqueous slurries of a test sediment spiked (1 ppm) with p,p???-DDE (DDE), 2,2???,5,5???-tetrachlorobiphenyl (TCB), naphthalene (NAP), or phenanthrene (PHEN), and containing 1% levels of...
Depositional environments and processes in Upper Cretaceous nonmarine and marine sediments, Ocean Point dinosaur locality, North Slope, Alaska
R. L. Phillips
2003, Cretaceous Research (24) 499-523
A 178-m-thick stratigraphic section exposed along the lower Colville River in northern Alaska, near Ocean Point, represents the uppermost part of a 1500 m Upper Cretaceous stratigraphic section. Strata exposed at Ocean Point are assigned to the Prince Creek and Schrader Bluff formations. Three major depositional environments are identified consisting,...
Uptake and depuration of nonionic organic contaminants from sediment by the oligochaete, Lumbriculus variegatus
Christopher G. Ingersoll, Eric L. Brunson, Ning Wang, James F. Dwyer, Gerald T. Ankley, David R. Mount, James Huckins, J. Petty, Peter F. Landrum
2003, Environmental Toxicology and Chemistry (22) 872-885
Uptake of sediment-associated contaminants by the oligochaete Lumbriculus variegatus was evaluated after 1, 3, 7, 14, 28, and 56 d of exposure to a field-collected sediment contaminated with DDT and its metabolites, dichlorodiphenyldichloroethane (DDD) and dichlorodiphenyldichloroethylene (DDE), or to a field-collected sediment contaminated with polycyclic aromatic hydrocarbons (PAHs). Depuration of...
Seismic velocity anisotropy and heterogeneity beneath the Mantle Electromagnetic and Tomography Experiment (MELT) region of the East Pacific Rise from analysis of P and S body waves
W.C. Hammond, D.R. Toomey
2003, Journal of Geophysical Research B: Solid Earth (108)
We use teleseismic P and S delay times and shear wave splitting measurements to constrain isotropic and anisotropic heterogeneity in the mantle beneath the southern East Pacific Rise (SEPR). The data comprise 462 P and S delay times and 18 shear wave splitting observations recorded during the Mantle Electromagnetic and...
Terpenoids as major precursors of dissolved organic matter in landfill leachates, surface water, and groundwater
J.A. Leenheer, M.A. Nanny, C. McIntyre
2003, Environmental Science & Technology (37) 2323-2331
13C NMR analyses of hydrophobic dissolved organic matter (DOM) fractions isolated from a landfill leachate contaminated groundwater near Norman, OK; the Colorado River aqueduct near Los Angeles, CA; Anaheim Lake, an infiltration basin for the Santa Ana River in Orange County, CA; and groundwater from the Tomago Sand Beds, near...
Toxicity evaluation with the microtox® test to assess the impact of in situ oiled shoreline treatment options: natural attenuation and sediment relocation
Kenneth Lee, Gary Wohlgeschaffen, Gilles H. Tremblay, B. Thomas Johnson, Gary A. Sergy, Roger C. Prince, Chantal C. Guenette, Edward H. Owens
2003, Spill Science and Technology Bulletin (8) 273-284
Changes in the toxicity levels of beach sediment, nearshore water, and bottom sediment samples were monitored with the Microtox® Test to evaluate the two in situ oil spill treatment options of natural attenuation (natural recovery––no treatment) and sediment relocation (surf washing). During a series of field trials, IF-30 fuel oil was intentionally sprayed...
Surface seismic refraction/reflection measurement determinations of potential site resonances and the areal uniformity of NEHRP site class D in Memphis, Tennessee
R. A. Williams, S. Wood, W. J. Stephenson, J. K. Odum, M. E. Meremonte, R. Street, D. M. Worley
2003, Earthquake Spectra (19) 159-189
We determined S-wave velocities (Vs) to about 40-m depth at 65 locations in the Memphis-Shelby County, Tennessee, area. The Vs measurements were made using high-resolution seismic refraction and reflection methods on the ground surface. We find a clear difference in the Vs profiles between sites located on the Mississippi River...
The diet of Chesapeake Bay striped bass in the late 1950s
J.C. Griffin, F.J. Margraf
2003, Fisheries Management and Ecology (10) 323-328
The diet of Chesapeake Bay striped bass, (Morone saxatilis) Walbaum, based on unpublished stomach content data from 916 fish collected between 1955 and 1959 was described. The diet in the late 1950s, quantified using an index of relative importance (IRI), was dominated by Atlantic menhaden, Brevoortia tyrannus Latrobe. Atlantic menhaden...
Mapping the spatial distribution and time evolution of snow water equivalent with passive microwave measurements
J. Guo, L. Tsang, E.G. Josberger, A.W. Wood, J.-N. Hwang, D.P. Lettenmaier
2003, IEEE Transactions on Geoscience and Remote Sensing (41) 612-621
This paper presents an algorithm that estimates the spatial distribution and temporal evolution of snow water equivalent and snow depth based on passive remote sensing measurements. It combines the inversion of passive microwave remote sensing measurements via dense media radiative transfer modeling results with snow accumulation and melt model predictions...
Evidence of sexually dimorphic introgression in Pinaleno Mountain Apache trout
M.T. Porath, J.L. Nielsen
2003, North American Journal of Fisheries Management (23) 172-180
The high-elevation headwater streams of the Pinaleno Mountains support small populations of threatened Apache trout Oncorhynchus apache that were stocked following the chemical removal of nonnative salmonids in the 1960s. A fisheries survey to assess population composition, growth, and size structure confirmed angler reports of infrequent occurrences of Oncorhynchus spp....
