Gastric emptying scintigraphy - The test involves eating a small meal containing trace amounts of radioactive material (radioisotopes). (pvillage.org)
A radionuclide ( radioactive nuclide , radioisotope or radioactive isotope ) is a nuclide that has excess nuclear energy, making it unstable. (wikipedia.org)
Radiometric dating, radioactive dating or radioisotope dating is a technique which is used to date materials such as rocks or carbon, in which trace radioactive Accuracy of radiometric · Modern dating methods · Radiocarbon dating. (sierranorte.com)
Common radioactive foods usually get their radioisotopes from the soil, although it's also possible to absorb isotopes with water. (sciencenotes.org)
Thus, detectors like Geiger-Müller counter are used to trace the presence of radioactive radiations. (cikgunaza.com)
In an MPI test, trace amounts of radioactive isotopes are injected into the patient undergoing a stress test. (dukehealth.org)
In it, a small amount of a radioactive substance, called a radioisotope, is introduced into the body. (timboucher.ca)
Isotope3
Every last trace of octreotide and the isotope Indium 111 used in the OctreoScan are gone from the body within 1 week. (carcinoid.org)
Isotope Phosphorus-32 or Nitrogen-15 used to traces the rate of nutrient absorptions in plants. (cikgunaza.com)
The stable isotope 27 Al (almost 100%) and the radioisotope 26 Al (in traces, half-life approx. (chemlin.org)
Amounts3
A trace radioisotope is a radioisotope that occurs naturally in trace amounts (i.e. extremely small). (wikipedia.org)
Generally speaking, trace radioisotopes have half-lives that are short in comparison with the age of the Earth, since primordial nuclides tend to occur in larger than trace amounts. (wikipedia.org)
The comparative advantages and drawbacks of some reactor-produced arsenic radioisotopes having favourable characteristics for their use as tracers are discussed. (springer.com)
Long-lived radioisotopes serve as tracers and chronometers in many branches of science e.g. (iuac.res.in)
Isotopic2
Because of its possibility to determine the radioisotopes at the faintest level, in some cases isotopic concentrations down to the range of 10-16, extremely wide applications in different fields are evolved. (psi.ch)
This work follows the penetration of anthropogenic lead (traced using its isotopic signatures) into the pristine deep Pacific Ocean. (geotraces.org)
Carbon-141
Radioisotopes such as phosphorus-32, carbon-14, sodium-24 and iodine-131 emit radiations. (cikgunaza.com)
Short-lived1
Using the trace radioactivity of short-lived 134 Cs in foodstuffs, we then evaluated the contribution ratio of Fukushima-derived 137 Cs in general foodstuffs in Japan. (nature.com)
Stable3
Natural processes which produce trace radioisotopes include cosmic ray bombardment of stable nuclides, ordinary alpha and beta decay of the long-lived heavy nuclides, thorium-232, uranium-238, and uranium-235, spontaneous fission of uranium-238, and nuclear transmutation reactions induced by natural radioactivity, such as the production of plutonium-239 and uranium-236 from neutron capture by natural uranium. (wikipedia.org)
These include: field parameters (e.g. electrical conductivity, temperature), major and trace ions (e.g. metals), stable isotopes of oxygen and hydrogen, industrial compounds (CFCs and SF6) and dissolved carbon isotopes (i.e. inorganic and organic forms). (edu.au)
Confirm or exclude the presence of CSF in leaking fluid by means of an immunoelectrophoretic study of the fluid for beta-2 transferrin (B2Tr) or, where available, beta-trace protein. (medscape.com)
Beta-trace protein is prostaglandin D2 synthase. (medscape.com)
Immunoelectrophoretic assay of beta-trace protein has been reported to have high specificity and sensitivity for CSF detection. (medscape.com)
Occur1
The elements that occur on Earth only in traces are listed below. (wikipedia.org)
Radioactivity2
Using measurements of trace 134 Cs radioactivity, we investigated the contribution ratio of 137 Cs derived from the Fukushima accident on 2011 and pre-Fukushima. (nature.com)
Food radioactivity due to accidents is a bigger problem because radioisotopes are absorbed into the plants and animals and may also form a dust on their surfaces. (sciencenotes.org)
Uranium3
A procedure has been developed and tested for particle induced X-ray emission (PIXE) analysis for thorium and uranium in drainage from the radioisotope laboratory at Tohoku University. (elsevierpure.com)
The PIXE analysis for these two kinds of targets can be applied to routine work for contamination control of drainage from a radioisotope laboratory using extremely long-lived actinides such as thorium and natural uranium in various experiments. (elsevierpure.com)
The roots of Israel's acquisition of enriched uranium during the early years of its nuclear development can be traced to certain ideological alliances between apartheid regimes, most notably that of South Africa, but also a period of military trade with Argentina. (warscapes.com)
Decay2
It is therefore argued that only changing radioisotope decay rates in the past could account for these discordant isochron 'ages' for the same geologic event. (answersingenesis.org)
The gamma rays emitted from the decay of the radioisotope leave the tumour in all directions. (theconversation.com)
Gamma rays1
Gamma rays emitted from the location of the disease area allows the gamma camera to localise the position of the radioisotope within the body. (southtees.nhs.uk)
Radiation3
Several familiar foods emit trace levels of radiation. (sciencenotes.org)
The radioisotope emits radiation that can be detected by special cameras or scanners, which produce images of the inside of the body. (timboucher.ca)
Exposure to the radioisotope delivers a small amount of radiation. (medlineplus.gov)
Prashanth L, Kattapagari KK, Chitturi RT, Baddam RVR, Prasad LK (2015) A review on role of essential trace elements in health and disease. (springer.com)
Dr. Aebersold based his conclusion on experiments with radioisotopes, which trace the movements of chemical elements in and out of the body. (time.com)
Seo and his colleagues show pronounced atmospheric and shelf inputs of trace elements in the Japan Sea. (geotraces.org)
Processes1
Trace radioisotopes are therefore present only because they are continually produced on Earth by natural processes. (wikipedia.org)
Substance1
These scanners trace the substance as it moves through the heart area. (medlineplus.gov)
Contamination1
Nuclear industry advancements and growing concerns about environmental contamination and terrorist activity have increased interest in quantifying radioisotopes in environmental and human samples. (cdc.gov)
Body3
PET and SPECT are whole body imaging techniques that use trace quantities of radioisotope-tagged bioactive molecules to probe biological function. (nottingham.ac.uk)
How long does the octreotide/radioisotope remain in the body? (carcinoid.org)
Traces of 40 K are found in all potassium, and it is the most common radioisotope in the human body. (chemkits.eu)
The recommended options for the production of relatively short half-life radionuclides are 77 As by capture on germanium or 76 As via (n,α) reaction on bromine, while two different ways are applicable for the production of 74 As, longer-lived radioisotope. (springer.com)
Conventional techniques in commercial radioisotope production - restricted mainly on reactor-based or accelerator-driven production routes - are approaching their limitations. (psi.ch)
The platform is integrated with GE's FastLab 2 New Edition platform and can produce 100 times the amount of gallium-68 compared with a generator for radioisotope production for prostate cancer imaging, according to the vendor. (auntminnie.com)
Development1
However, the development of new radioisotopes has allowed the cameras to make accurate readings in women and heavy-set patients. (dukehealth.org)
Produce1
The computer then traces back the origin of this signal to produce an image. (southtees.nhs.uk)
These images can be used to trace the path of the radioisotope and identify any abnormalities or problems. (timboucher.ca)
I see other people using the content that I create in much the same way: where the images and stories I create are like the radioisotopes, and when they get picked up by other people in an information ecosystem, we can use them as a way of tracking how and where these things propagate online. (timboucher.ca)
Shown1
Radioisotope studies in animals have shown conclusively that when eaten, organ and gland tissue selectively travel to the corresponding organs and glands in the consumer, in high concentrations. (felineinstincts.com)
Samples1
However, our new K-Ar, Rb-Sr, Sm-Nd, and Pb-Pb radioisotope data from 11 whole-rock samples (eight diabase, three granophyre) and six mineral phases separated from one of the whole-rock diabase samples yield discordant whole-rock and mineral isochron 'ages. (answersingenesis.org)
Medicine1
There is a branch of medicine called nuclear medicine, or radioisotope scanning, that is relevant here. (timboucher.ca)