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searching for Radioactive tracer 47 found (108 total)

Fracking proppants (1,266 words) [view diff] exact match in snippet view article find links to article

gum, biocides, emulsion breakers, emulsifiers, 2-butoxyethanol, and radioactive tracer isotopes. Proppants have greater permeability than small mesh proppants

Ventilation–perfusion mismatch (927 words) [view diff] exact match in snippet view article find links to article

Ventilation Scan: Takes 15 to 20 minutes. A radioactive tracer gas is inhaled and then this radioactive tracer gas is traced (looked) by taking pictures

Radionuclide angiography (2,244 words) [view diff] exact match in snippet view article find links to article

scan is performed by labeling the patient's red blood pool with a radioactive tracer, technetium-99m-pertechnetate (Tc-99m), and measuring radioactivity

Lymphogram (676 words) [view diff] exact match in snippet view article find links to article

being studied to evaluate spreading, a mixture of blue dye and a radioactive tracer is injected next to the mass. Special cameras detect the spread of

Synthetic radioisotope (742 words) [view diff] exact match in snippet view article find links to article

medicine covers use of radioisotopes for diagnosis or treatment. Radioactive tracer compounds, radiopharmaceuticals, are used to observe the function

Operation Starvation (novel) (790 words) [view diff] exact match in snippet view article

intercept Kathy. Dominique meets her and secretly tags her with a radioactive tracer. She attempts to flee. Carter tracks her with a Geiger counter as

Blood volume (1,002 words) [view diff] exact match in snippet view article find links to article

determined through the dilution principle (i.e. similar as the case for radioactive tracer methods). Although CO gas in large volumes is toxic to humans, the

Gamma probe (425 words) [view diff] exact match in snippet view article find links to article

staging; both are currently considered standards of care. The use of a radioactive tracer, rather than a coloured dye, was proposed in 1984. To locate the draining

Splenogonadal fusion (1,385 words) [view diff] exact match in snippet view article find links to article

Technetium-99m Scintigraphy Radioactive tracer uptake in mass equivalent to uptake in normal splenic tissue Radioactive tracer uptake in mass equivalent

Biliary dyskinesia (741 words) [view diff] exact match in snippet view article find links to article

the health and function of the gallbladder and biliary system. A radioactive tracer is injected through any accessible vein and then allowed to circulate

Plexaurella nutans (466 words) [view diff] exact match in snippet view article find links to article

inside the coral's skeleton. After particles of liver marked with a radioactive tracer were fed experimentally to a single polyp, radioactivity was detected

Nuclear pharmacy (1,083 words) [view diff] exact match in snippet view article find links to article

Radiopharmacology Christian, John E. (June 1948). "The applications of radioactive tracer techniques to pharmacy and pharmaceutical research". Journal of the

Neuroimaging (5,152 words) [view diff] exact match in snippet view article find links to article

three-dimensional images of active brain regions. SPECT relies on an injection of radioactive tracer, or "SPECT agent," which is rapidly taken up by the brain but does

Radiochemistry (2,096 words) [view diff] exact match in snippet view article find links to article

intravenously into the patient and then taken to the PET machine. The radioactive tracer releases radiation outward from the patient and the cameras in the

Gamma camera (1,700 words) [view diff] exact match in snippet view article find links to article

reconstructed image reflects the distribution and relative concentration of radioactive tracer elements present in the organs and tissues imaged.: 162 Hal Anger

Eating behavior in insects (750 words) [view diff] exact match in snippet view article find links to article

many methods, the most commonly applied are capillary feeder (CAFE), radioactive tracer labeling in food, dye tracer labeling in food and counting of proboscis

Uses of radioactivity in oil and gas wells (1,277 words) [view diff] exact match in snippet view article find links to article

"A comprehensive study of the analysis and economic benefits of radioactive tracer engineered stimulation procedures," Society of Petroleum Engineers

Spectral noise logging (648 words) [view diff] case mismatch in snippet view article find links to article

Help to Diagnoses Complex Problems McKinley, R.M. 1994. Temperature, Radioactive Tracer, and Noise Logging for Well Integrity: 112-156 Wang J, Alex van der

John H. Lawrence (768 words) [view diff] exact match in snippet view article find links to article

being used to treat a human patient. Lawrence pioneered the usage of radioactive tracer techniques to study the impact of disease on metabolic processes.

Iterative reconstruction (1,783 words) [view diff] exact match in snippet view article find links to article

resistance to the streak artifacts common with FBP. Since the density of radioactive tracer is a function in a function space, therefore of extremely high-dimensions

Herta Regina Leng (463 words) [view diff] exact match in snippet view article find links to article

fellowship permitted her the freedom to pursue the pioneer research on radioactive tracer materials. In 1943, Leng moved to New York City to accept a faculty

K-casein (1,687 words) [view diff] exact match in snippet view article find links to article

the rate of degradation of casein previously labeled with either a radioactive tracer or a fluorochrome compound. All these methods use casein as the substrate

Sentinel lymph node (2,607 words) [view diff] exact match in snippet view article find links to article

up the radionuclide. One or several nodes may take up the dye and radioactive tracer, and these nodes are designated the sentinel lymph nodes. The surgeon

Nuclear medicine physician (1,485 words) [view diff] exact match in snippet view article find links to article

only a little over a quarter of a century (1925) until the first radioactive tracer study in animals was performed by George de Hevesy, and the next year

Tribology (7,993 words) [view diff] exact match in snippet view article find links to article

material are observed. Another method of investigation is that of the radioactive tracer, used to evaluate wear at macroscopic levels. One of the two materials

Rare-earth mineral (1,838 words) [view diff] exact match in snippet view article find links to article

which make it useful for conductivity, aircraft assembly, and as a radioactive tracer. Kyawthuite is a rare earth mineral due to its unique formation process

Cardiac imaging (3,062 words) [view diff] exact match in snippet view article find links to article

nuclear medicine imaging methodology using gamma rays emitted by a radioactive tracer injected into the blood stream, which ultimately distributes into

Spondylolysis (2,791 words) [view diff] exact match in snippet view article find links to article

scan, bone scintigraphy involves the injection of a small amount of radioactive tracer into the bloodstream. This tracer decays and emits radioactive energy

Caesium-137 (3,745 words) [view diff] exact match in snippet view article find links to article

sedimentation occurring after 1945. Caesium-137 is also used as a radioactive tracer in geologic research to measure soil erosion and deposition; its affinity

Solubility equilibrium (3,908 words) [view diff] exact match in snippet view article find links to article

thermostatted room. Very low concentrations can be measured if a radioactive tracer is incorporated in the solid phase. A variation of the static method

Reconstruction from projections (1,222 words) [view diff] exact match in snippet view article find links to article

any chosen axis of the body. SPECT is similar to PET in its use of radioactive tracer material and detection of gamma rays, while the tracers used in SPECT

Radiology (5,771 words) [view diff] exact match in snippet view article find links to article

of substances with affinity for certain body tissues labeled with radioactive tracer. The most commonly used tracers are technetium-99m, iodine-123, iodine-131

Stafford L. Warren (2,900 words) [view diff] exact match in snippet view article find links to article

John S. Lawrence, who had pioneered the use of phosphorus-32 as a radioactive tracer, as professor of medicine. With Dr William P. Longmire Jr, a 34-year-old

Well logging (4,114 words) [view diff] case mismatch in snippet view article find links to article

Help to Diagnoses Complex Problems McKinley, R.M. 1994. Temperature, Radioactive Tracer, and Noise Logging for Well Integrity: 112-156 Wang J, Alex van der

Fantastic Voyage (5,029 words) [view diff] exact match in snippet view article find links to article

outside Benes's body are still able to track their movements via a radioactive tracer, allowing General Alan Carter and Colonel Donald Reid, the officers

Elizabeth Rona (3,471 words) [view diff] exact match in snippet view article find links to article

to Tennessee in the late 1970s, publishing a book in 1978 on her radioactive tracer methods. Rona died on 27 July 1981 in Oak Ridge, Tennessee. Rona did

Plus Therapeutics (2,003 words) [view diff] exact match in snippet view article find links to article

therapy. It is in the same chemical family as Technetium-99m (99mTc), a radioactive tracer that is the most commonly used isotope for diagnostic scintigraphic

Michael I. Miller (2,168 words) [view diff] exact match in snippet view article find links to article

With Snyder, Miller worked to stabilize likelihood-estimators of radioactive tracer intensities via the method-of-sieves . This became one of the approaches

Ventilation–perfusion coupling (2,496 words) [view diff] exact match in snippet view article find links to article

and a perfusion scan for blood flow distribution in the lungs. A radioactive tracer is used to scan the whole lung and the ventilation and perfusion function

Copley Medal (4,419 words) [view diff] exact match in snippet view article find links to article

of radioactive elements and especially for his development of the radioactive tracer techniques in the investigation of biological processes" 1950 James

Melanoma (15,963 words) [view diff] exact match in snippet view article find links to article

needed] A process called lymphoscintigraphy is performed in which a radioactive tracer is injected at the tumor site to localize the sentinel node(s). Further

Magnesium in biology (10,486 words) [view diff] exact match in snippet view article find links to article

of putative Mg2+ ions for the binding of some drugs". The use of radioactive tracer elements in ion uptake assays allows the calculation of km, Ki and

Gordon McClymont (4,103 words) [view diff] exact match in snippet view article find links to article

approach to researching metabolic diseases in livestock, utilizing radioactive tracer methods to identify "the quantitative importance of various metabolites

Magnesium in biology (10,486 words) [view diff] exact match in snippet view article find links to article

of putative Mg2+ ions for the binding of some drugs". The use of radioactive tracer elements in ion uptake assays allows the calculation of km, Ki and

Magnesium transporter (12,021 words) [view diff] exact match in snippet view article find links to article

Co2+ and Ni2+ have been shown to be transported by CorA by using radioactive tracer analysis, although with lower affinities (km) and velocities (Vmax)

Diffuse optical mammography (3,543 words) [view diff] exact match in snippet view article find links to article

tumour, but it is very expensive and requires the administration of a radioactive tracer. For this reason, its application is not frequently recommended. On

Fracking in the United States (24,900 words) [view diff] exact match in snippet view article find links to article

Thus, despite concerns about the elevated levels of iodine-131 (a radioactive tracer used in hydraulic fracturing) in drinking water in Philadelphia and