A5101470094- Seismic Imaging and Inversion Techniques
- Reservoir Engineering and Simulation Methods
- Hydraulic Fracturing and Reservoir Analysis
- Rabies epidemiology and control
- Seismic Waves and Analysis
- Drilling and Well Engineering
- Planetary Science and Exploration
- Hydrocarbon exploration and reservoir analysis
- Astro and Planetary Science
- Microbial infections and disease research
- Yersinia bacterium, plague, ectoparasites research
- Poxvirus research and outbreaks
- Virology and Viral Diseases
- Wildlife Ecology and Conservation
- Geophysical Methods and Applications
- Natural Resources and Economic Development
- X-ray Diffraction in Crystallography
- Global Energy and Sustainability Research
- Crystallization and Solubility Studies
- Seismology and Earthquake Studies
- High-pressure geophysics and materials
- Geological Modeling and Analysis
- Marine and environmental studies
- Geophysical and Geoelectrical Methods
- Methane Hydrates and Related Phenomena
ExxonMobil (Germany)
2005-2022
Environment and Climate Change Canada
2017
ExxonMobil (United States)
1989-2015
ExxonMobil (Qatar)
2015
Viventia Bio (Canada)
2003-2013
ExxonMobil (Norway)
2013
Michigan Technological University
2010
Chevron (United States)
2010
University of Houston
2010
Animal and Plant Health Inspection Service
2005
The attenuation of compressional (P) and shear (S) waves in dry, saturated, frozen rocks is measured the laboratory at ultrasonic frequencies. A pulse transmission technique spectral ratios are used to determine coefficients quality factor (Q) values relative a reference sample with very low attenuation. In frequency range about 0.1–1.0 MHz, coefficient linearly proportional (constant Q) both for P‐ S‐waves. dry rocks, [Formula: see text] slightly smaller than waves. brine water‐saturated...
Theoretical models based on several hypothesized attenuation mechanisms are discussed in relation to published data the effects of pressure and fluid saturation attenuation. These include friction, flow, viscous relaxation, scattering. The application these ultrasonic Toksöz et al (1979, this issue) indicates that friction thin cracks grain boundaries is dominant mechanism for consolidated rocks under most conditions earth’s upper crust. Increasing decreases number contributing by thus...
Animal rabies control has been frustrated by the existence of multiple wildlife reservoirs and lack efficacious oral vaccines. In this investigation, raccoons fed a vaccinia-rabies glycoprotein recombinant virus in sponge bait developed virus-neutralizing antibody (0.6-54.0 units) resisted street infection 28 205 days after feeding. Additional immunized infusion with attenuated antigenic variants strains CVS-11 ERA failed to develop antibody. This work demonstrates feasibility vaccine...
Ultrasonic P and S wave Q values as functions of hydrostatic pressure are presented for the Berea Navajo sandstones, Bedford limestone, Colorado oil shale. In most cases attenuation was obtained both dry water‐saturated samples. is determined by measuring rock sample relative to a high standard identical geometry using Fourier spectral ratios. The data show that increases with pressure, rate increase being dependent on type crack density distribution. s about equal or larger than p rocks...
Static and dynamic bulk moduli (K s K d ) are measured as continuous functions of pressure from zero to 2‐3 kilobars for two sandstones, a tuff, limestone, granite, oil shale. Results the sandstones granite in good agreement with previously reported data /K varying about 0.5 at atmospheric close unity pressures 2 above. For rocks behaving elastically under static loading, ratio is inversely related microcrack density. time dependent deformation associated pore collapse results ratios...
The province of Ontario (Canada) reported more laboratory confirmed rabid animals than any other state or in Canada the USA from 1958-91, with exception 1960-62. More 95% those cases occurred southern 10% (approximately 100,000 km2), region highest human population density and greatest agricultural activity. Rabies posed an expensive threat to health significant costs economy. rabies variant originated arctic foxes: main vector was red fox (Vulpes vulpes), lesser involvement striped skunk...
To evaluate the effectiveness of intervention efforts to halt 2 wildlife rabies epizootics from 1995 through 2003, including 9 oral vaccination campaigns for coyotes and 8 gray foxes.Retrospective study.98 during prevaccination surveillance 963 104 nontarget animals postvaccination in south Texas, 699 foxes 561 west-central Texas.A recombinant-virus vaccine edible baits was distributed by aircraft consumption foxes. Bait acceptance monitored use microscopic analysis tetracycline biomarker...
Deformational properties, P‐wave and S‐wave velocities, electrical resistivity were measured for three North Sea Malm shales in the laboratory under pressures to 800 bars temperatures 100 °C. These data used evaluate how factors such as mineralogy, microstructure, compaction, pore‐fluid conductivity affect a shale’s seismic responses. Deformation is dominated by inelastic processes which cause time‐dependent changes velocity, resistivity, pore pressure. Overall, are less sensitive pressure...
The evolution and state of the interior Mars are studied through use theoretically calculated thermal history density models. These models satisfy constraints mean density, moment inertia, recent volcanism implied by Mariner 9 photographs. Invoking melting an Fe-FeS mixture permits initial core formation within first billion years. At present time radius ranges from about 1300 to 1800 km, depending on composition, is liquid even if composition varied eutectic. Large-scale differentiation...
Objective To determine effectiveness of large-scale distribution an oral rabies vaccine contained in a palatable bait for halting expansion canine epizootic coyotes ( Canis latrans ). Design Prospective study. Animals 98 during prevaccination surveillance and 449 60 other wild animals postvaccination surveillance. Procedure A vaccinia recombinant was inserted into edible that also tetracycline as biomarker. Vaccine units were then distributed via aircraft, using automated equipment flight...
Journal Article Efficacy of a Vaccinia-Rabies Glycoprotein Recombinant Virus Vaccine in Raccoons (Procyon lotor) Get access Charles E. Rupprecht, Rupprecht Please address requests for reprints to Dr. The Wistar Institute Anatomy and Biology, 3601 Spruce Street, Philadelphia, Pennsylvania 19104. Search other works by this author on: Oxford Academic PubMed Google Scholar Amir N. Hamir, Hamir David H. Johnston, Johnston Hilary Koprowski Reviews Infectious Diseases, Volume 10, Issue...
Wildlife rabies invaded Ontario in 1954 along the coasts of Hudson and James Bays. During period to 1958, was carried into southern by red foxes (Vulpes vulpes), 1958–59 a severe epizootic occurred. From 1961 1969 has remained endemic Ontario. The fox striped skunk (Mephitis mephitis) are main wildlife vectors, account for 43% 16% total cases respectively. Of domestic species, cattle make up 22%, dogs 7%, cats 5%. remaining 7% several other wild species. An annual cycle occurs each year,...
Miniature collar-type transmitters originally designed by W. Cochran, Illinois, were adapted for use on timber wolves (Canis lupus sp.) in east-central Ontario. Wild captured steel traps, restrained with a forked stick, fitted radio-collars and released at point of capture. Receivers trucks, airplanes, walking rough bush country. Maximum ranges 3.2 km ground 9.6 aircraft receivers. A preadult female tagged July, 1964, lactating adult June, 1965, tracked intermittently 5.5 2.5 months,...
The role of crack and grain boundary contacts in determining seismic wave attenuation rock is investigated by examining Q as a function thermal cycling (cracking) strain amplitude. values are obtained using longitudinal resonant bar technique the 10‐ to 20‐kHz range for maximum amplitudes varying from roughly 10 −8 −5 . samples studied include Berea Navajo sandstones, Plexiglas, Westerly granite, Solenhofen limestone, Frederick diabase, latter two relatively free their virgin state....
Abstract The Pan and Parapan American Games (PA15) are the third largest sporting event in world were held Toronto summer of 2015 (10–26 July 7–15 August). This was used as an opportunity to coordinate showcase existing innovative research development activities related weather, air quality (AQ), health at Environment Climate Change Canada. New observational technologies included weather stations based on compact sensors that augmented with black globe thermometers, two Doppler lidars, wave...
An aerial baiting system was developed to deliver oral rabies vaccines wild carnivore vectors of rabies, e.g., red fox, striped skunk, and raccoon. The bait consists a polyethylene bag that contains either 30-g hamburger ball or 25-mL cube polyurethane sponge coated with wax-beef tallow mixture containing 100-150 mg tetracycline as biomarker. Attractants used the were added (e.g., liver slurry, cheeses, fish oils, fruits). Baits (greater than 80,000) dropped from light aircraft at densities...
A series of experiments are described on the acceptance, by red foxes (Vulpes vulpes) and other species, two types vaccine-baits intended to deliver liquid rabies vaccine. The baits consisted a cube sponge coated in mixture tallow wax, or plastic blister-pack embedded tallow. All contained tetracycline as biological marking agent: examination thin sections carnivore canines under an ultraviolet microscope revealed fluorescent line if individual had eaten baits. Baits were dropped from...
Ketamine hydrochloride was administered intramuscularly to 171 individual animals of five carnivore species. The drug used in doses which resulted a range effects from simple immobilization surgical plane anesthesia during minor operations were conducted. found have wide margin safety, easily by syringe, and took effect rapidly. Undesirable side excessive salivation maintenance muscle tone readily controlled combining ketamine with other drugs.
Mature and immature red foxes (Vulpes vulpes) striped skunks (Mephitis mephitis) were fed varying numbers of white mice infected with street isolates a fixed strain rabies virus. Rabies deaths the development serum neutralizing antibody to virus occurred in both species. The epizootiological implications these findings are discussed.