Metals that constitute the group 2 (formerly group IIa) of the periodic table.
Stable strontium atoms that have the same atomic number as the element strontium, but differ in the atomic weight. Sr-84, 86, 87, and 88 are the stable strontium isotopes.
Stable yttrium atoms that have the same atomic number as the element yttrium, but differ in atomic weight. Y-89 is the only naturally occurring stable isotope of yttrium.
Inorganic compounds that contain oxygen as an integral part of the molecule.
Inorganic compounds that contain nitrogen as an integral part of the molecule.
An element of the alkaline earth family of metals. It has the atomic symbol Sr, atomic number 38, and atomic weight 87.62.
A chelating agent that sequesters a variety of polyvalent cations such as CALCIUM. It is used in pharmaceutical manufacturing and as a food additive.
Unstable isotopes of cesium that decay or disintegrate emitting radiation. Cs atoms with atomic weights of 123, 125-132, and 134-145 are radioactive cesium isotopes.
Stable cesium atoms that have the same atomic number as the element cesium, but differ in atomic weight. Cs-133 is a naturally occurring isotope.
Salts or ions of the theoretical carbonic acid, containing the radical CO2(3-). Carbonates are readily decomposed by acids. The carbonates of the alkali metals are water-soluble; all others are insoluble. (From Grant & Hackh's Chemical Dictionary, 5th ed)
Exclusive legal rights or privileges applied to inventions, plants, etc.
Carbonic acid calcium salt (CaCO3). An odorless, tasteless powder or crystal that occurs in nature. It is used therapeutically as a phosphate buffer in hemodialysis patients and as a calcium supplement.
A collective term for interstitial, intracavity, and surface radiotherapy. It uses small sealed or partly-sealed sources that may be placed on or near the body surface or within a natural body cavity or implanted directly into the tissues.
A compound used as an x-ray contrast medium that occurs in nature as the mineral barite. It is also used in various manufacturing applications and mixed into heavy concrete to serve as a radiation shield.
Piperazines with two keto oxygens.
Specialized solutions for PARENTERAL NUTRITION. They may contain a variety of MICRONUTRIENTS; VITAMINS; AMINO ACIDS; CARBOHYDRATES; LIPIDS; and SALTS.
Extracellular vesicles generated by the shedding of CELL MEMBRANE blebs.
The misinterpretation of a real external, sensory experience.
Systems for the delivery of drugs to target sites of pharmacological actions. Technologies employed include those concerning drug preparation, route of administration, site targeting, metabolism, and toxicity.
Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS).
Compounds based on a 7-membered heterocyclic ring including an oxygen. They can be considered a medium ring ether. A natural source is the MONTANOA plant genus. Some dibenzo-dioxepins, called depsidones, are found in GARCINIA plants.
Analog or digital communications device in which the user has a wireless connection from a telephone to a nearby transmitter. It is termed cellular because the service area is divided into multiple "cells." As the user moves from one cell area to another, the call is transferred to the local transmitter.
Computer programs or software installed on mobile electronic devices which support a wide range of functions and uses which include television, telephone, video, music, word processing, and Internet service.
A family of heterotrimeric GTP-binding protein alpha subunits that activate ADENYLYL CYCLASES.
The continuous remodeling of MITOCHONDRIA shape by fission and fusion in response to physiological conditions.
A type of MICROCOMPUTER, sometimes called a personal digital assistant, that is very small and portable and fitting in a hand. They are convenient to use in clinical and other field situations for quick data management. They usually require docking with MICROCOMPUTERS for updates.
A family of proteins that contain several 42-amino acid repeat domains and are homologous to the Drosophila armadillo protein. They bind to other proteins through their armadillo domains and play a variety of roles in the CELL including SIGNAL TRANSDUCTION, regulation of DESMOSOME assembly, and CELL ADHESION.
A type of procedural memory manifested as a change in the ability to identify an item as a result of a previous encounter with the item or stimuli.
A subspecialty of internal medicine concerned with the study of the physiology and diseases of the digestive system and related structures (esophagus, liver, gallbladder, and pancreas).
Hospital department whose primary function is the upkeep and supervision of the buildings and grounds and the maintenance of hospital physical plant and equipment which requires engineering expertise.
Institutional systems consisting of more than one health facility which have cooperative administrative arrangements through merger, affiliation, shared services, or other collective ventures.
Noninflammatory degenerative disease of the knee joint consisting of three large categories: conditions that block normal synchronous movement, conditions that produce abnormal pathways of motion, and conditions that cause stress concentration resulting in changes to articular cartilage. (Crenshaw, Campbell's Operative Orthopaedics, 8th ed, p2019)
A province of Canada lying between the provinces of Manitoba and Quebec. Its capital is Toronto. It takes its name from Lake Ontario which is said to represent the Iroquois oniatariio, beautiful lake. (From Webster's New Geographical Dictionary, 1988, p892 & Room, Brewer's Dictionary of Names, 1992, p391)
Noninflammatory degenerative disease of the hip joint which usually appears in late middle or old age. It is characterized by growth or maturational disturbances in the femoral neck and head, as well as acetabular dysplasia. A dominant symptom is pain on weight-bearing or motion.
The spontaneous transformation of a nuclide into one or more different nuclides, accompanied by either the emission of particles from the nucleus, nuclear capture or ejection of orbital electrons, or fission. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
Isotopes that exhibit radioactivity and undergo radioactive decay. (From Grant & Hackh's Chemical Dictionary, 5th ed & McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
High energy POSITRONS or ELECTRONS ejected from a disintegrating atomic nucleus.
Positively charged particles composed of two protons and two NEUTRONS, i.e. equivalent to HELIUM nuclei, which are emitted during disintegration of heavy ISOTOPES. Alpha rays have very strong ionizing power, but weak penetrability.
Energy released by nuclear fission or nuclear fusion.
The hospital department responsible for the administration and provision of diagnostic and therapeutic services for the cancer patient.
A 36-amino acid peptide present in many organs and in many sympathetic noradrenergic neurons. It has vasoconstrictor and natriuretic activity and regulates local blood flow, glandular secretion, and smooth muscle activity. The peptide also stimulates feeding and drinking behavior and influences secretion of pituitary hormones.
Institutions specializing in the care of cancer patients.
A medical specialty concerned with maintaining health and providing medical care to children from birth to adolescence.
New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms.
Cell surface proteins that bind neuropeptide Y with high affinity and trigger intracellular changes which influence the behavior of cells.
Liquid, solid, or gaseous waste resulting from mining of radioactive ore, production of reactor fuel materials, reactor operation, processing of irradiated reactor fuels, and related operations, and from use of radioactive materials in research, industry, and medicine. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Disposal, processing, controlling, recycling, and reusing the solid, liquid, and gaseous wastes of plants, animals, humans, and other organisms. It includes control within a closed ecological system to maintain a habitable environment.
Science dealing with the properties, distribution, and circulation of water on and below the earth's surface, and atmosphere.
Facilities that convert NUCLEAR ENERGY into electrical energy.
Units that convert some other form of energy into electrical energy.
Pollutants, present in water or bodies of water, which exhibit radioactivity.

Serum pepsinogen and gastric cancer screening. (1/3)

Since the 1990's, the test for serum pepsinogen as a marker for chronic atrophic gastritis has been incorporated into gastric cancer screening programs, on a trial basis, to identify people at high risk for gastric cancer. The addition of the serum test to the cancer screening program has been shown to improve the detection rate of cancer and pepsinogen testing is useful in detecting early-stage gastric cancers arising from atrophic gastric mucosa, which macroscopically tend to be elevated and histologically differentiated. Furthermore, the cost for the detection of a single cancer case is much less than that for conventional screening. Thus, with the introduction of pepsinogen testing, complimenting barium X-ray, a more efficient screening system is available.  (+info)

[(76) Br]BMK-152, a nonpeptide analogue, with high affinity and low nonspecific binding for the corticotropin-releasing factor type 1 receptor. (2/3)

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Room-temperature semiconductor detectors for in vivo monitoring of internal contamination. (3/3)

In vivo monitoring of low-energy X-ray and gamma-ray emitters has always been a difficult task, primarily because of lack of accuracy and the high detection limits of classical techniques. Various types of PIN diodes (diodes with a large intrinsic zone) were tested in the Radiation Protection Department of the Studie Centrum voor Kernenergie, Centre d'etude de l'Energie Nucleaire (Mol, Belgium) in the measurement of radioactive body burden by direct methods. Current research is oriented toward the use of room-temperature diodes for the detection of low-energy photons escaping the body. In this paper, a new counting technique that involves a portable jacket containing the diodes is described. The system uses silicon diodes and is used out of shielding room in order to be near the contamination. With this method rapid analysis and long counting times are possible, stress is reduced, and medical treatment can be optimized. CdZnTe detectors were also evaluated for this measurement technique but this type of detector is better adapted for counting inside a shielding room. The improvement of the accuracy of the measurement, taking into account the effect of the ribs, is described here, as well the associated electronics necessary for this type of counting.  (+info)

ortholog of the Eg5 kinesin that plays an essential role in promoting mitotic spindle bipolarity in most animal phyla. This was surprising, because two large deletion alleles of bmk-1 are homozygous viable, and papers had been published concluding that bmk-1 is not essential in C. elegans (with the only detectable requirement being to modestly decrease the rate of P0 spindle elongation during the first embryonic mitotic cell division). However, our bmk-1(or645ts) allele was 100% embryonic-lethal at 25 degrees C, with monopolar oocyte meiotic spindles, consistent with its known role in promoting spindle bipolarity during mitosis in vertebrates. I convinced myself that the two deletion alleles were not null and we had finally discovered the essential function for bmk-1 in C. elegans. We therefore devoted a great deal of effort toward further characterizing this mutant phenotype. However, one day Rene Medema, at the Netherlands Cancer Institute, emailed me asking if they might use our ...
abuse,. (IBM) 80 or below. Used in describing the expected intelligence range of the luser. Well, but hows this interface going to play with the room-temperature IQ crowd? This is a much more insulting phrase in countries that use Celsius thermometers. See drool-proof paper. [Jargon File] Last updated: 1996-04-06. ...
Friese K , Aroyo M I , Schwalowsky I , Adiwidjaja G , Bismayer U , Journal of Solid State Chemistry , 165 (2002) p.136-147, The disordered high-temperature structure of (NH4)3H(SO4)2 and its relationship, to the room-temperature phase, Locality: synthetic, Sample: T = 293 K ...
Advanced Materials and Technologies: Growth Structures and Phase Formation in Industrially Room-Temperature Pulsed Laser Deposited FCC Ti-Based Nitride Coatings
Customers can only store whole blood at room-temperature for up to 24hrs before initiation of shipping; otherwise whole blood needs to be refrigerated (2-8°C) for up to 10 days. ,This test is not intended for use on samples of cord blood. ...
Ovsyannikov, S. V.; Bykov, M.; Medvedev, S. A.; Naumov, P. G.; Jesche, A.; Tsirlin, A. A.; Bykova, E.; Chuvashova, I.; Karkin, A. E.; Dyadkin, V. et al.; Chernyshov, D.; Dubrovinsky, L. S.: A Room-Temperature Verwey-type Transition in Iron Oxide, Fe5O6. Angewandte Chemie, International Edition 59, pp. 5632 - 5636 (2020 ...
Ovsyannikov, S. V.; Bykov, M.; Medvedev, S. A.; Naumov, P. G.; Jesche, A.; Tsirlin, A. A.; Bykova, E.; Chuvashova, I.; Karkin, A. E.; Dyadkin, V. et al.; Chernyshov, D.; Dubrovinsky, L. S.: A Room-Temperature Verwey-type Transition in Iron Oxide, Fe5O6. Angewandte Chemie International Edition 59, pp. 5632 - 5636 (2020 ...
About Us - Contact Us Disclaimer: All opinions expressed here are those of their authors and not of their employer. The information provided here is for educational purposes only and is not intended to provide medical advice. By accessing the web site, the visitors acknowledge that there is no physician-patient relationship between them and the authors. ...
In this paper, an innovative coaxial-type dielectric barrier discharge plasma generator is proposed to produce the large-volume and visibly uniform cold ar
臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。. To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of NTU Repository with Academic Hub to form NTU Scholars.. ...
A room-temperature Kerr-Lens modelocked (KLM) Cr:ZnS laser generates ,70 fs pulses duration (about eight optical cycles) with 5.6 nJ pulse energy and over 100 nm FWHM spectral width at 105-157 MHz repetition rates. The ...
Magikmold® U-740 is an economical, room-temperature curing (RTV), two-part, Shore A40 urethane rubber designed for the manufacture of flexible molds and parts.
A room-temperature superconductor is a hypothetical material that would be capable of exhibiting superconductivity at operating temperatures above 0 °C (273.15 K). While this is not strictly room temperature, which would be approximately 20-25 °C, it is the temperature at which ice forms and can be reached and easily maintained in an everyday environment. The highest temperature known superconducting material is highly pressurized hydrogen sulfide, the transition temperature of which is 203 K (−70 °C), the highest accepted superconducting critical temperature as of 2015. By substituting a small part of sulfur with phosphorus and using even higher pressures, it has been predicted that it may be possible to raise the critical temperature to above 0 °C and achieve room-temperature superconductivity. Previously the record was held by the cuprates, which have demonstrated superconductivity at atmospheric pressure at temperatures as high as 138 K (−135 °C), and 164 K (−109 °C) under high ...
The room-temperature densification method was developed for Li2MoO4 ceramics and is based on the water-solubility of Li2MoO4. It can be used for the fabrication of Li2MoO4 ceramics instead of conventional thermal sintering. The method utilizes a small amount of aqueous phase formed by moistening the Li2MoO4 powder. The densification occurs during sample pressing as the solution incorporates the pores between the powder particles and recrystallizes. The contact points of the particles provide a high pressure zone, where solubility is increased, whereas the pores act as a suitable place for the precipitation of the solution. Any residual water is removed by post-processing typically at 120 °C. The method is suitable also for Li2MoO4 composite ceramics with up to 30 volume-% of filler material, enabling the optimization of the dielectric properties. A room-temperature fabrication method for microwave dielectric Li2MoO4 ceramics and their applicability for antennas ...
Y. Han and S. B. Lee, Room-Temperature Tunable Multiwavelength Erbium-Doped Fiber Laser Based on Degenerate Four-Wave Mixing Effect in Dispersion-Shifted Fiber, in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2006), paper OWI38 ...
Methods by which synthetic adhesives can be cured at ambient temperatures are covered. The alkyl cyanoacrylates, epoxies, and MPL monomers can be cured, with little shrinkage, to obtain metal adhesive bonds which compare favorably to those obtained by high temperature modes of curing. An investigation by which novolac epoxies were rendered more flexible with accompanying increases in the temperature and salt spray resistance is described. ...
The development of solid electrolytes with superior electrical and electrochemical performances for the room-temperature operation of sodium (Na)-based batteries is at the infant stage and still remains a challenge. Herein, we, for the first time, report hybrid solid electrolytes consisting of PEO20-NaClO4-5 2017 Journal of Materials Chemistry A HOT Papers
For those who have the program running . . . Can it provide more output? Comparing results with theory would be much more straightforward if one could count only the number of mutations that have fixed, rather than all present in the population; it would also be useful to see the allele frequency spectrum. (And if it cant do those things, then it is of no interest as a population genetics tool ...
Materials scientists at Ecole polytechnique fédérale de Lausanne, or EPFL, proposes methods for storing vaccines without refrigeration for many days.
It is going hectic. I had to rewrite my patent since it is everytime judged in terms of the mainstream models like BCS which are all wrong since not one of them can explain the fact that a superconductor is a conducting insulator. When no current is flowing it reacts to an applied electric-field like a highly polarisable insulator, while when a current flows it cancels the electric-field within it. In other words without a current flowing, the metal-to-superconducting transition at the critical temperature Tc is a metal-to-insulatior transition ...
Proteoglycan 2 (PRG2, also known as eosinophil major basic protein) is a protein encoded by this gene as the predominant constituent of the crystalline core of the eosinophil granule. Elevated levels of the preform of this protein are present in placenta and pregnancy serum. Here it exists as a complex with several other proteins including C3dg, pregnancy-associated plasma protein A (PAPPA), and angiotensin (AGT). PRG2 may be involved in antiparasitic defense mechanisms as a cytotoxin and helminthotoxin, and in immune hypersensitivity reactions. The protein has been directly implicated in epithelial cell damage, exfoliation and bronchospasm in allergic diseases.. This monoclonal antibody detects eosinophil major basic protein (BMK-13). This mAb may be used by researchers working in the field(s) of Downs syndrome diagnostics, asthma and cardiology.. Previously validated monoclonal antibody used for R&D purposes. PRG2 is also known as BMPG, MBP, MBP1, Eosinophil major basic protein, proteoglycan ...
Room-temperature ferromagnetism was observed in undoped and Fe2+(3+)-doped CeO2 nanocrystals. In Fe-doped samples the enhancement of ferromagnetic ordering occurs by changing the valence state of Fe ions, whereas Raman spectra demonstrated strong electron-molecular vibrational coupling and increase in oxygen vacancy concentration. Air annealing showed degradation of ferromagnetic ordering and appearance of hematite phase in Fe3+-doped sample. The observed ferromagnetic coupling in Fe-doped samples, associated with the presence of magnetic ions mediated by single charged O2- vacancies, demonstrated that valence state of dopant has a strong influence on magnetic properties of CeO2 nanoparticles ...
An analytical investigation was conducted to examine and predict the capillary dryout and rewetting behaviors occurring at the evaporator section of room-temperature heat pipes during startup. The physical model is based on the displacement of a leading-edge front of a thin liquid layer flowing on finite groove uniformly heated with a constant heat flux. Numerical solutions were obtained by a fully implicit Finite Difference Method, accounting for the movement of the liquid and a known time-variable temperature boundary condition at the liquid front. The velocity and position of the liquid front were found to vary with the applied heat flux, the initial conditions, and the thermophysical properties of the working fluid. The wall temperature distribution in the dried region was also predicted. The working fluid temperature compared well with experimental results. The analysis indicated that a partial or full dryout at the evaporator section may exist for certain heat fluxes.. Copyright © 2005 by ...
Researchers from Arizona State and Tsinghua Universities achieved a room-temperature CMOS laser using a molybdenum ditelluride monolayer over a silicon cavity.
The collision-induced absorption structure accompanying the magnetic-dipole-allowed $1.27 \mu$m band of $O_{2}$, originally observed in the laboratory by Badger, Wright, and Whitlock, has been measured at $0.03 cm^{-1}$ resolution using a Fourier-transform infrared spectrometer. Spectra were recorded at an optical pathlength of 84 m for pure $O_{2}$, at temperatures between 253 K to 293 K and pressures to 9 atm. Several spectra were also measured for room-temperature $O_{2}/N_{2}$ mixtures. These results presently being analyzed will allow comparison with recent measurements of these bands in the atmosphere by Mlawer. Clough, Brown, Stephen, Landry, Goldman, and Murcray. ...
Poly LiteCast is a lightweight, wood-like polyurethane plastic that is often used as an alternative to plaster and concrete. This product is typically used to make lightweight decorative moldings, props, patterns, fixtures and tools.This room-temperature curing, two-part plastic has a 1A:1B mix
RICHMOND, Va.— Quantum Silicones L.L.C. has introduced its latest moldmaking product, the QM 254, a two-component, room-temperature, addition-cure silicone material. The company said the cured rubber is resin resistant and has a 10-to-one mix ratio. Aquantum touted the QM 254s low…
The current status of gastric cancer screening, worldwide, as well as in Japan, using the serum pepsinogen test method, was reviewed. We performed a metaanalysis of sensitivity and specificity results from 42 individual studies (27 population-based screening studies: n = 296 553 and 15 selected grou …
Irradiation induced pulsations of reverse biased metal oxide/silicon structures. Fink, D.; Kiv, A.; Fuks, D.; Tabacnics, M.; de A. Rizutto, M.; de O. D. Silva, A.; Chandra, A.; Golovanov, V.; Ivanovskaya, M.; Khirunenko, L. // Applied Physics Letters;8/20/2007, Vol. 91 Issue 8, p083512 Specific electronic features have been found in structures consisting of metal oxide layers on silicon substrates upon swift heavy ion irradiation. These features are linked to the appearance of radiation-induced negative differential resistances in the structures. In the reversed bias direction... ...
The illustration on the left shows the variations of light intensity within a nanolaser. The figure on the right shows schematically a nanolaser with a metallic cavity, where the center red region confines electrons and the grey enclosure is a silver cavity. The blue layer on top is a substrate where the laser structure is grown. The orange-yellow color on top indicates the light emission. Research led by Arizona state University engineering professor Cun-Zheng Ning has produced nanolasers that can operate under a battery power at room temperatures instead of only in refrigerated conditions which opens the door to use of the lasers in many practical applications in modern electronics. ...
The possible transition to a new generation of electronic devices based on spintronics has been given a boost with a method which would let the technology function at room temperature.. A team of researchers at Aarhus University reckon that it has made a massive leap forward in making spintronics a viable technology sooner, rather than later. With current computer electronics being produced at ever lower processes scientists are looking at spintronics as a method to enable faster and more efficient processors in the future. While such a move is not vital in the short term, spintronics has been in developmental stages in many labs.. But now the scientists believe they have brought forward the use of spintronics significantly by devising a method to make it work under normal conditions.. This is down to a topological insulator material bismuth selenide which can help to regulate the flow of electrons used to record a rotational spin. Because the effect is so small it is necessary for the ...
A hybrid polymer/oxide/ionic-liquid solid electrolyte for na-metal batteries / S. F. Song, M. Kotobuki, F. Zheng et al. // Journal of Materials Chemistry A. - 2017. - Vol. 5, no. 14. - P. 6424-6431. The development of solid electrolytes with superior electrical and electrochemical performances for the room-temperature operation of sodium (Na)-based batteries is at the infant stage and still remains a challenge. Herein, we, for the first time, report hybrid solid electrolytes consisting of PEO20-NaClO4-5% SiO2-x% Emim FSI (x = 50, 70) designed for solid-state Na-metal batteries. The hybrid design yields a solid electrolyte featuring a high room-temperature ionic conductivity of 1.3 × 10−3 S cm−1, suitable mechanical property, a wide voltage stability window of 4.2 V and a high Na+ transference number of 0.61. A prototypical Na-metal battery using this hybrid solid electrolyte demonstrates promising long-term cycling performances at room temperature and at an elevated temperature of 60 oC for ...
Category:Radioisotope fuels See also: Radioisotope thermoelectric generator Radioisotope heater unit Radioisotope piezoelectric generator Thermionic converter
Pulses of light from infrared lasers can speed up computer operations by a factor of 1 million, and may have opened the door to room-temperature quantum computing.
Spirals tower conveyor for room-temperature cooling or forced cooling, freezing and fermentation. spiral fermenting room is the ideal device for automatic Industrialized bread Production, which can be integrated to the complete set of product line.
Another use is as a carrier of strontium-90 radioisotope in radioisotope thermoelectric generators. https://www.mindat.org/min- ... Its optical properties are intermediate to calcium fluoride and barium fluoride. Strontium fluoride is used as an optical ...
... includes the study of both natural and man-made radioisotopes. All radioisotopes are unstable isotopes of ... Gamma radiation requires an appreciable amount of heavy metal radiation shielding (usually lead or barium-based) to reduce its ... Radiochemistry also includes the study of the behaviour of radioisotopes in the environment; for instance, a forest or grass ... for example the action of cosmic rays on the air is responsible for the formation of radioisotopes (such as 14C and 32P), the ...
Beryllium-7, beryllium-10, and calcium-41 are trace radioisotopes; calcium-48 and barium-130 have very long half-lives and thus ... To produce barium, barite (impure barium sulfate) is converted to barium sulfide by carbothermic reduction (such as with coke ... Calcium and barium are weakly radioactive: calcium contains about 0.1874% calcium-48, and barium contains about 0.1062% barium- ... such as barium nitrate. These in turn are calcined into barium oxide, which eventually yields pure barium after reduction with ...
Barium compounds impart a green color to flames and have been used in fireworks. Barium sulfate is used for its density, ... Iridium radioisotopes are used in some radioisotope thermoelectric generators. Iridium is found in meteorites with an abundance ... Soluble barium compounds are poisonous due to release of the soluble barium ion, and have been used as rodenticides. New uses ... The most common naturally occurring minerals are the very insoluble barium sulfate, BaSO4 (barite), and barium carbonate, BaCO3 ...
It has a half-life of 30 years, and decays by beta decay without gamma ray emission to a metastable state of barium-137 (137m ... With a short half-life of 8 days, this radioisotope is not of practical use in radioactive sources in industrial radiography or ... The ground state of barium-137 is stable. The gamma ray (photon) energy of 137m Ba is about 662 keV. These gamma rays can be ... Lanthanum-140 is a decay product of barium-140, a common fission product. It is a potent gamma emitter. It was used in high ...
Diagnosis is via one or more of the following: barium swallow X-ray, barium beefsteak meal, radioisotope gastric-emptying scan ... For the X-ray, the patient drinks a liquid containing barium after fasting which will show up in the X-ray and the physician is ... Gastroparesis can be diagnosed with tests such as barium swallow X-rays, manometry, and gastric emptying scans. ...
Some of these radioisotopes are tritium, carbon-14 and phosphorus-32. Here is a list of radioisotopes formed by the action of ... The barium was present in the form of the nitrate in the chemical explosives used while the plutonium was the fissile fuel used ... This radioisotope can be released from the nuclear fuel cycle; this is the radioisotope responsible for the majority of the ... In addition some natural radioisotopes are present. A recent paper reports the levels of long-lived radioisotopes in the ...
Radioisotopes of francium would presumably be dangerous as well due to their high decay energy and short half-life, but none ... Redko, M. Y.; Huang, R. H.; Jackson, J. E.; Harrison, J. F.; Dye, J. L. (2003). "Barium azacryptand sodide, the first alkalide ... Radioisotopes of caesium require special precautions: the improper handling of caesium-137 gamma ray sources can lead to ... Radioisotope Brief: Cesium-137 (Cs-137). U.S. National Center for Environmental Health The Radiological Accident in Goiânia. ...
... develops a contemporary equivalent to barium sulfate (BaSO4) radiocontrasting using a custom radioisotope with which he can ...
On occasion, the radioisotope is a simple soluble dissolved ion, such as an isotope of gallium(III). Most of the time, though, ... barium-140 and europium-154) and activation products (chromium-51 and cobalt-58). These may be imaged using SPECT in order to ... SPECT is more widely available, because the radioisotope used is longer-lasting and far less expensive in SPECT, and the gamma ... In the nuclear power sector, the SPECT technique can be applied to image radioisotope distributions in irradiated nuclear fuels ...
... potassium radioisotopes MeSH D01.496.749.075 - barium radioisotopes MeSH D01.496.749.090 - bromine radioisotopes MeSH D01.496. ... iron radioisotopes MeSH D01.496.749.540 - krypton radioisotopes MeSH D01.496.749.560 - lead radioisotopes MeSH D01.496.749.590 ... xenon radioisotopes MeSH D01.496.749.960 - yttrium radioisotopes MeSH D01.496.749.980 - zinc radioisotopes MeSH D01.496.807.800 ... xenon radioisotopes MeSH D01.496.943.800 - yttrium radioisotopes MeSH D01.496.966.800 - zinc radioisotopes MeSH D01.524.500.040 ...
Some early evidence for nuclear fission was the formation of a short-lived radioisotope of barium which was isolated from ... as it was then standard radiochemical practice to use a barium sulfate carrier precipitate to assist in the isolation of radium ...
Some early evidence for nuclear fission was the formation of a short-lived radioisotope of barium which was isolated from ... 3H (tritium), the radioisotope of hydrogen, is available at very high specific activities, and compounds with this isotope in ... A short review of the biochemical properties of a series of key long lived radioisotopes can be read on line. 99Tc in nuclear ... In addition, they bombarded aluminium and magnesium with neutrons to make new radioisotopes. Radiochemistry is the chemistry of ...
... is a barium neutron activation product, the barium in the Trinity device coming from the slow explosive lens employed in the ... Salted bomb Table of nuclides Manual for reactor produced radioisotopes from the International Atomic Energy Agency Neeb, Karl ... as a result of the production of neutron-rich radioisotopes.[citation needed] Some atoms require more than one neutron to ...
In total, barium has about 40 known isotopes, ranging in mass between 114 and 153. The most stable artificial radioisotope is ... Barium in seawater Barium exists in seawater as the Ba2+ ion with an average oceanic concentration of 109 nmol/kg. Barium also ... Barium found in the Earth's crust is a mixture of seven primordial nuclides, barium-130, 132, and 134 through 138. Barium-130 ... Barium, typically as barium nitrate imparts a yellow or "apple" green color to fireworks; for brilliant green barium ...
Barium is formed in large amounts by the fission process. A short-lived barium isotope was confused with radium by some early ... The strontium radioisotopes are very important, as strontium is a calcium mimic which is incorporated in bone growth and ... It is the most significant radioisotope left in the area around Chernobyl. Caesium-134 is found in spent nuclear fuel but is ... Because the chemistry of barium and radium the two elements could be coseparated by for instance a precipitation with sulfate ...
All other radioisotopes have half-lives shorter than two weeks. The longest-lived isomer is 133mBa, which has a half-life of ... Barium-114 is predicted to undergo cluster decay, emitting a nucleus of stable 12C to produce 102Sn. However this decay is not ... Primordial radioisotope Believed to undergo β+β+ decay to 132Xe with a half-life over 300×1018 years Fission product Meija, ... Naturally occurring barium (56Ba) is a mix of six stable isotopes and one very long-lived radioactive primordial isotope, ...
133Ba and 241Am were created by the neutron activation of barium and plutonium inside the bomb. The barium was present in the ... A paper on the radioisotopes left on an island by the French nuclear bombs tests of the 20th century has been printed by the ... A 2006 paper reports the levels of long lived radioisotopes in the trinitite. 152Eu and 154Eu was mainly formed by the neutron ... Many atomic batteries have been of the radioisotope thermoelectric generator (RTG) type. The Plutonium-238 used in RTGs has a ...
137Cs beta decays to barium-137m (a short-lived nuclear isomer) then to nonradioactive barium-137, and is also a strong emitter ... The longest-lived radioisotopes are 135Cs with a half-life of 2.3 million years, 137Cs with a half-life of 30.1671 years and ... It decays via emission of a low-energy beta particle into the stable isotope barium-135. Caesium-135 is one of the 7 long-lived ... Caesium (55Cs) has 40 known isotopes, making it, along with barium and mercury, one of the elements with the most isotopes. The ...
Like calcium and barium, as well as the alkali metals and the divalent lanthanides europium and ytterbium, strontium metal ... "Radioisotopes That May Impact Food Resources" (PDF). Epidemiology, Health and Social Services, State of Alaska. Archived from ... The metal itself has a limited use as a getter, to remove unwanted gases in vacuums by reacting with them, although barium may ... It is softer than calcium and harder than barium. Its melting (777 °C) and boiling (1377 °C) points are lower than those of ...
Later 90Sr and 137Cs are the main radioisotopes, being succeeded by 99Tc. In the case of a release of radioactivity from a ... xenon and barium. The threat becomes smaller with the passage of time. Locations where radiation fields once posed immediate ... but a considerable number of the radioisotopes have half-lives longer than a day. The radioactivity in the fission product ... in the fission product mixture in an atom bomb is mostly caused by short-lived isotopes such as iodine-131 and barium-140. ...
Any alpha-emitting radioisotope will suffice, but usually a high specific activity alpha-emitter is chosen, such as radium (Ra- ... To their surprise, they found barium residue, a clear indication that they had instead fissioned uranium nuclei. This discovery ...
ISBN 978-0-19-515026-1. Radioisotope Power Systems Committee, National Research Council U.S. (2009). Radioisotope power systems ... barium, chromium, and platinum). In 1934, Josef Mattauch finally formulated the isobar rule. One of the indirect consequences ... Nuclides were produced in 1941 which were not radioisotopes of neodymium or samarium, and the name "cyclonium" was proposed, ... Duggirala, Rajesh; Lal, Amit; Radhakrishnan, Shankar (2010). Radioisotope Thin-Film Powered Microsystems. Springer. p. 12. ISBN ...
Beryllium-7, beryllium-10, and calcium-41 are trace radioisotopes; calcium-48 and barium-130 have very long half-lives and thus ... Barium has some use in vacuum tubes to remove gases,[50] and barium sulfate has many uses in the petroleum industry,[4] as well ... Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Of the six alkaline earth metals, beryllium, calcium, barium, and radium have at least one naturally occurring radioisotope; ...
Small amounts of barium impurities give the compound a rose color. It is soluble in water, though less so than barium chloride ... More recently discovered radioisotopes, such as cobalt-60 and caesium-137, are replacing radium in even these limited uses ... Radium has a density of 5.5 g/cm3, higher than that of barium, again confirming periodic trends; the radium-barium density ... The remaining residue was then treated with sodium carbonate to convert the barium sulfate into barium carbonate (carrying the ...
Shortly after, the process was improved; barium was removed chemically, by double precipitation from a solution as barium ... Other radioisotopes, present as impurities, have a long enough half-life to present a potential problem even decades after the ... The improved process that separated lanthanum from the barium chloride solution had the advantage that barium could be "milked ... Barium was isolated in a purpose-built hot laboratory in Oak Ridge and shipped in a lead pig to Los Alamos, where it was used ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Radioisotopes of caesium require special precautions: the improper handling of caesium-137 gamma ray sources can lead to ... Similar solutions are formed by the heavy divalent alkaline earth metals calcium, strontium, barium, as well as the divalent ... All of the alkali metals except lithium and caesium have at least one naturally occurring radioisotope: sodium-22 and sodium-24 ...
The two tables show some of the major radioisotopes, their half-lives, and their radiation yield as a proportion of the yield ... Coal contains a small amount of radioactive uranium, barium, thorium and potassium, but, in the case of pure coal, this is ... The radon decays to form solid radioisotopes which form coatings on the inside of pipework. In an oil processing plant the area ... This is further complicated by the fact that many radioisotopes do not decay immediately to a stable state but rather to ...
used in radioisotope thermoelectric generators (RTGs) and radioisotope heater units as an energy source for spacecraft ... Barium-133 9694 TBq/kg (262 Ci/g) 10.7 years 81.0, 356.0 ... Radioisotopes are also a method of treatment in hemopoietic ... "Radioisotopes in Industry". World Nuclear Association.. *. Martin, James (2006). Physics for Radiation Protection: A Handbook. ... most commonly used medical radioisotope, used as a radioactive tracer Iodine-129 53. 76. 15,700,000 y. β−. 194 Cosmogenic. ...
These include barium swallow, barium meal, barium follow-through, and barium enema.[2] The barium swallow, barium meal, and ... Barium meal and barium follow-through[edit]. For barium meal or barium follow-through examinations, a 6-hour period of fasting ... Depending on the organs to be examined, barium radiographs can be classified into barium swallow, barium meal, barium follow- ... Radioisotope renography. *Sestamibi parathyroid scintigraphy. *Radioactive iodine uptake test. *Bone scintigraphy. * ...
Röntgen was investigating cathode rays using a fluorescent screen painted with barium platinocyanide and a Crookes tube which ... Radioisotope renography. *Sestamibi parathyroid scintigraphy. *Radioactive iodine uptake test. *Bone scintigraphy. * ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... 27 radioisotopes have been observed, with the most stable ones being 169Yb with a half-life of 32.0 days, 175Yb with a half- ...
"56 Barium". Elements.vanderkrogt.net. Retrieved 2008-09-12.. *^ "17 Chlorine". Elements.vanderkrogt.net. Retrieved 2008-09-12. ... Marinsky, J. A.; Glendenin, L. E.; Coryell, C. D. (1947). "The chemical identification of radioisotopes of neodymium and of ... Barium 1772 W. Scheele 1808 H. Davy Scheele distinguished a new earth (BaO) in pyrolusite and Davy isolated the metal by ...
Double-contrast barium enema. *Endoanal ultrasound. *Enteroclysis. *Lower gastrointestinal series. *Small-bowel follow-through ... Radioisotope renography. *Sestamibi parathyroid scintigraphy. *Radioactive iodine uptake test. *Bone scintigraphy. * ...
Baddeleyite Barite Barium barometer Basalt base Bastnasite battery Bauxite Beckerite Benzene benzene ring Berkelium Beryl ... radioisotope Radium Radon Radon fluoride Raman spectroscopy Raoult's law Redox Reduction Reflux Reversible reaction Rhazes ... Svante Arrhenius Syenite Sylvite synthetic radioisotope systematic element name Tabun Talc Talcum Tantalite Tantalum Tanzanite ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... While most of germanium's radioisotopes decay by beta decay, 61. Ge. and 64. Ge. decay by β+. delayed proton emission.[46] 84. ... At least 27 radioisotopes have also been synthesized, ranging in atomic mass from 58 to 89. The most stable of these is 68. Ge ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Fourteen radioisotopes have been characterized. The most stable are 15O with a half-life of 122.24 seconds and 14O with a half- ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Fourteen radioisotopes have been characterized. The most stable are 15O with a half-life of 122.24 seconds and 14O with a half- ...
Barium sulfate is used in some applications too. However, when cost is important, almost any material can be used, but it must ... injection of medical radioisotopes such as technetium-99m. The occupational hazards from airborne radioactive particles in ... Hand-held ion chamber survey meter in use for surface dose rate on one of three radioisotope thermoelectric generators (RTGs) ... or the plaster may contain barium sulfate. Operators view the target through a leaded glass screen, or if they must remain in ...
Radioisotope. Emission energy (keV). Half-life. Radiopharmaceutical. Activity (MBq). Rotation (degrees). Projections. Image ... barium-140 and europium-154) and activation products (chromium-51 and cobalt-58). These may be imaged using SPECT in order to ... On occasion, the radioisotope is a simple soluble dissolved ion, such as an isotope of gallium(III). Most of the time, though, ... SPECT is more widely available, because the radioisotope used is longer-lasting and far less expensive in SPECT, and the gamma ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Thirty radioisotopes have been characterised, which range in mass number from 209[22] to 238.[20] After 232Th, the most stable ... barium, thallium, and ammonium are known for thorium fluorides, chlorides, and bromides.[50] For example, when treated with ... All of these isotopes occur in nature as trace radioisotopes due to their presence in the decay chains of 232Th, 235U, 238U, ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Twenty-eight radioisotopes have been characterized, the most stable being 105Ag with a half-life of 41.29 days, 111Ag with a ... AgF4]2− is also known in its violet barium salt, as are some silver(II) complexes with N- or O-donor ligands such as pyridine ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... 19 radioisotopes have been characterized, with the most stable being 50Cr with a half-life of (more than) 1.8×1017 years, and ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... 204Tl is the most stable radioisotope, with a half-life of 3.78 years.[12] It is made by the neutron activation of stable ... The radioisotope thallium-201 (as the soluble chloride TlCl) is used in small, nontoxic amounts as an agent in a nuclear ... "Manual for reactor produced radioisotopes" (PDF). International Atomic Energy Agency. 2003. Retrieved 2010-05-13.. ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... is also sometimes considered as a light radioisotope of hydrogen, due to the mass difference between the antimuon and the ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... allowing the use of radioisotope rubidium-82 in nuclear medicine to locate and image brain tumors.[50] Rubidium-82 has a very ... Bolter, E.; Turekian, K.; Schutz, D. (1964). "The distribution of rubidium, cesium and barium in the oceans". Geochimica et ...
CT colonography (also known as virtual colonoscopy or VC for short) is far more accurate than a barium enema for detection of ... Radioisotope renography. *Sestamibi parathyroid scintigraphy. *Radioactive iodine uptake test. *Bone scintigraphy. * ... Dilute barium sulfate has the advantage that it does not cause allergic-type reactions or kidney failure, but cannot be used in ... However, oral alternatives to iodinated contrast exist, such as very dilute (0.5-1% w/v) barium sulfate suspensions. ...
Barium. Lanthanum. Cerium. Praseodymium. Neodymium. Promethium. Samarium. Europium. Gadolinium. Terbium. Dysprosium. Holmium. ... The most stable radioisotopes are 107Pd with a half-life of 6.5 million years (found in nature), 103Pd with 17 days, and 100Pd ... Eighteen other radioisotopes have been characterized with atomic weights ranging from 90.94948(64) u (91Pd) to 122.93426(64) u ... It is used to prepare heterogeneous palladium catalysts such as palladium on barium sulfate, palladium on carbon, and palladium ...
Lukens Jr, H. R., Anderson, E. E., & Beaufait Jr, L. J. (1954). Punched Card System for Radioisotopes. Analytical Chemistry. 26 ... Anderson, Elda E., & Zumwalt, L. R. (1964). The Diffusion of Barium in Simulated High-Temperature Graphite Fuel Elements. ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Hg being the most abundant (29.86%). The longest-lived radioisotopes are 194. Hg with a half-life of 444 years, and 203. Hg ... Most of the remaining radioisotopes have half-lives that are less than a day. 199. Hg and 201. Hg are the most often studied ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... The most stable chlorine radioisotope is 36Cl. The primary decay mode of isotopes lighter than 35Cl is electron capture to ... and perchloric acid is made by reacting anhydrous sodium perchlorate or barium perchlorate with concentrated hydrochloric acid ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Thirty-six radioisotopes have been characterized, with the heaviest being terbium-171 (with atomic mass of 170.95330(86) u) and ... lightest being terbium-135 (exact mass unknown).[12] The most stable synthetic radioisotopes of terbium are terbium-158, with a ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... K are foond in aw potassium, an it is the maist common radioisotope in the human bouk. ...
Double-contrast barium enema. *Endoanal ultrasound. *Enteroclysis. *Lower gastrointestinal series. *Small-bowel follow-through ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... About 20 radioisotopes and 7 nuclear isomers between 233Cm and 252Cm are known for curium, and no stable isotopes. The longest ... Furthermore, a number of ternary oxides of the type M(II)CmO3 are known, where M stands for a divalent metal, such as barium.[ ... They predominantly emit α-particles, and the heat released in this process can serve as a heat source in radioisotope ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Therefore, 210Po is used as an atomic heat source to power radioisotope thermoelectric generators via thermoelectric materials. ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Zn, which has a half-life of 243.66 days, is the least active radioisotope, followed by 72. Zn with a half-life of 46.5 hours.[ ... The most common decay mode of a radioisotope of zinc with a mass number lower than 66 is electron capture. The decay product ... The most common decay mode of a radioisotope of zinc with mass number higher than 66 is beta decay (β−), which produces an ...
Barium. Lanthanum. Cerium. Praseodymium. Neodymium. Promethium. Samarium. Europium. Gadolinium. Terbium. Dysprosium. Holmium. ... Carbon-14 (14C) is a naturally occurring radioisotope, created in the upper atmosphere (lower stratosphere and upper ...
BARIUM COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BODY; CARBOXYLIC ACIDS; CHELATING AGENTS; DAYS ... MAT.; EDTA; RESPONSE MODIFYING FACTORS; STRONTIUM ISOTOPES; METABOLISM; YTTRIUM ISOTOPES; BARIUM NITRATES; MICE; RADIONUCLIDE ... MINUTES LIVING RADIOISOTOPES; NITRATES; NITROGEN COMPOUNDS; NUCLEI; ODD-EVEN NUCLEI; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANS; ... OXYGEN COMPOUNDS; RADIOISOTOPES; RODENTS; STRONTIUM COMPOUNDS; VERTEBRATES; 560172* - Radiation Effects- Nuclide Kinetics & ...
... from barium (Ba) carbonate. Uses of the Cs-131 purified by the method include cancer research and treatment, such as for the ... Radioisotope dispersed in a matrix for brachytherapy. US6608277. Jun 11, 2002. Aug 19, 2003. Bard Acquisition Sub. Inc.. ... in a first solution comprising an acid which reacts with the barium to form a soluble barium salt, whereby the barium and Cs- ... in a first solution comprising an acid which reacts with the barium to form a soluble barium salt, whereby the barium and Cs- ...
Barium Radioisotopes. Unstable isotopes of barium that decay or disintegrate emitting radiation. Ba atoms with atomic weights ... Barium Enema. X-RAY examination of LOWER GASTROINTESTINAL TRACT. Imaging is done while a BARIUM COMPOUND (e.g., BARIUM SULFATE ... Barium vs. BariumFerumoxsil. The purpose of this study is to determine whether Barium or BariumFerumoxsil is better for fecal ... BaB2O3F2: A New Barium Fluorooxoborate with a Unique (_"∞" ^"2" )"B2O3F-" Layer and Short Cutoff Edge.. 08:00 EDT 1st April ...
Barium X-ray : You drink a liquid (barium), which coats the esophagus, stomach, and small intestine and shows up on X-ray. This ... Radioisotope gastric-emptying scan (gastric scintigraphy): You eat food that contains a very small amount of radioisotope (a ... test is also known as an upper GI (gastrointestinal) series or a barium swallow. ...
Barium-contrast upper gastrointestinal series or gastric pH probe; radioisotope milk scan ... Barium-contrast upper gastrointestinal series or gastric pH probe; radioisotope milk scan ...
Radioisotopes; The catalytic metals; The electronic metals; Germanium; Tantalum; Caesium; Barium, beryllium, thallium and the ...
Does Barium-144 have any useful purpose? All I really know about it is that it is a product of fission (one of the fission ... Some radioisotopes are used in the medical field. What does Barium-144 bring to the table?. Can anyone help? ... Some radioisotopes are used in the medical field. What does Barium-144 bring to the table?. Can anyone help? ... Does Barium-144 have any useful purpose?. All I really know about it is that it is a product of fission (one of the fission ...
Radioisotopes and radioopaque agents include gallium, technetium, indium, strontium, iodine, barium, and phosphorus. ...
All other radioisotopes have half-lives shorter than two weeks. The longest-lived isomer is 133mBa, which has a half-life of ... Barium-114 is predicted to undergo cluster decay, emitting a nucleus of stable 12C to produce 102Sn. However this decay is not ... Primordial radioisotope Believed to undergo β+β+ decay to 132Xe with a half-life over 300×1018 years Fission product Meija, ... Naturally occurring barium (56Ba) is a mix of six stable isotopes and one very long-lived radioactive primordial isotope, ...
Barium enema. CT colography. Red cell radioisotope-labelled scanning. Selective angiography 17 ... Why are Barium enemas and CT colographies not as good as colonoscopy? ...
56, Ba, Barium, group=2, period=6, block=s, series=4, mass=137.327, eleneg=0.89, eleaffin=0.14462, covrad=1.98, atmrad= ... Five other radioisotopes exist. Discovered in 1863 by Reich and Richter.) e[Sn].description = ( Silvery malleable ... Some of the radioisotopes are even more toxic.) e[Ba].description = ( Silvery-white reactive element, belonging to group 2 ... Eighteen radioisotopes have been produced, but all have very short half-lives. Found only in nuclear decay waste. Pm-147 ...
In total, barium has about 40 known isotopes, ranging in mass between 114 and 153. The most stable artificial radioisotope is ... Barium in seawater Barium exists in seawater as the Ba2+ ion with an average oceanic concentration of 109 nmol/kg. Barium also ... Barium found in the Earths crust is a mixture of seven primordial nuclides, barium-130, 132, and 134 through 138. Barium-130 ... Barium, typically as barium nitrate imparts a yellow or "apple" green color to fireworks; for brilliant green barium ...
Radioisotopes of refractory elements such as strontium5,6,7, barium and lanthanides were monitored only in rare occasions8. ...
... www.tricorderproject.org/blog/dr-jansen-or-how-i-stopped-worrying-and-learned-to-love-the-barium/ ... OpenCT, an extremely low resolution scanner using this sensor and a radioisotope source: http:// ...
Imaging modalities (barium studies, ultrasound, CT, MRI, radioisotope scan, ERCP, EUS, capsule endoscopy) ... This will include upper GI endoscopy, sigmoidoscopy, colonoscopy, barium studies, ultrasound, CT, MRI, radioisotope scan, ERCP ...
used in radioisotope thermoelectric generators (RTGs) and radioisotope heater units as an energy source for spacecraft ... Barium-133 9694 TBq/kg (262 Ci/g) 10.7 years 81.0, 356.0 ... Radioisotopes are also a method of treatment in hemopoietic ... "Radioisotopes in Industry". World Nuclear Association.. *. Martin, James (2006). Physics for Radiation Protection: A Handbook. ... most commonly used medical radioisotope, used as a radioactive tracer Iodine-129 53. 76. 15,700,000 y. β−. 194 Cosmogenic. ...
For example, we wont be giving dilute oral barium to a bone scan patient prior to SPECT, Frey said. ... Certain SPECT exams require the use of iodine radioisotopes. Prior administration of iodinated CT contrast agents should ...
Upper GI study and barium enema:. o May be of benefit when the mass involves the intestine. A 2 year old healthy male presents ... Radioisotope cholescintigraphy (HIDA) scan:. o Liver, gallbladder. • Voiding cystourethrography or intravenous urography:. o ...
Barium Strontium Cobalt Ferrite Ba-Sr-Co-Fe-O bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free ... Co-60, a commercially important radioisotope, is useful as a radioactive tracer and gamma ray source. The origin of the word ... 56 Ba 137.327000000 Barium See more Barium products. Barium (atomic symbol: Ba, atomic number: 56) is a Block S, Group 2, ... Barium Strontium Cobalt Ferrite Synonyms. Barium Strontium Cobalt Iron Oxide, barium-strontium-cobalt-ferrite, BSCF, Ba1−ySryCo ...
For X-radiography, suitable labels include radioisotopes such as barium or cesium, which emit detectable radiation but are not ... In the case of a radioisotope moiety, for a human subject, the quantity of radioactivity injected will normally range from ... The diagnostic composition of claim 16, wherein said label is selected from the group consisting of a radioisotope, a ... The probes (nucleic acid molecules or antibodies) can be detectably labelled, for example, with a radioisotope, a ...
For X-radiography, suitable labels include radioisotopes such as barium or cesium, which emit detectable radiation but are not ... Besides enzymes, other suitable labels include radioisotopes, such as iodine (125I, 121I), carbon (14C), sulfur (35S), tritium ... In the case of a radioisotope moiety, for a human subject, the quantity of radioactivity injected will normally range from ... such as a radioisotope (for example, 131I, 112In, 99 mTc), a radio-opaque substance, or a material detectable by nuclear ...
Barium beefsteak meal. During this test, the patient eats a meal containing barium, allowing the radiologist to watch the ... Radioisotope gastric-emptying scan. During this test, the patient eats food containing a radioisotope, which is a slightly ... The amount of time it takes for the barium meal to be digested and leave the stomach gives the doctor an idea of how well the ... The dosage of radiation from the radioisotope is very small and not harmful, but allows the radiologist to see the food in the ...
Barium Strontium Titanate (BST) Nanoparticles / Nanopowder BaO4SrTi bulk & research qty manufacturer. Properties, SDS, ... Radioactive isotopes of strontium have been used in radioisotope thermoelectric generators (RTGs) and for certain cancer ... 56 Ba 137.327000000 Barium See more Barium products. Barium (atomic symbol: Ba, atomic number: 56) is a Block S, Group 2, ... Barium Strontium Titanate (BST) Nanoparticles / Nanopowder Synonyms. Barium strontium titanium oxide, Barium strontium ...
Barium is sometimes used as a contrast agent; it is not absorbed orally and thus does not affect breastfeeding. ... Radioisotopes. Use of radioisotopes sometimes requires temporary weaning. The length of time will depend upon the type of ... Home ▸ Breastfeeding ▸ Can I Breastfeed if...? ▸ Illness, Surgery & Medical Procedures ▸ Use of Radioisotopes (and other ... It can be dated, frozen and used after 5+ half-lives of the radioisotope have passed (after 5 half-lives, 96.9% of the ...
As the two primary radioisotopes of cesium (134Cs and 137Cs) decay to stable isotopes of barium (134Ba and 137Ba, respectively ...
Finally, barium and strontium likely existed as naturally occurring stable isotopes, but a small fraction likely originated as ... We suspect that many of the elements detected are radioisotopes, though radiochemical analyses were not performed. XRD analysis ... and barium. Trace amounts of cobalt, chromium, copper, lanthanum, lithium, sodium, strontium, uranium, vanadium, and zirconium ...
Barium x-ray *Barium beefsteak meal *Radioisotope gastric-emptying scan *Gastric manometry ...
and here is Barium 133 .... i get a much better resolution with the semiconductor detector but the surface area window being so ... Sciencemadness Discussion Board » Special topics » Radiochemistry » Radioisotope Identification. Select A Forum. Fundamentals. ... Sciencemadness Discussion Board » Special topics » Radiochemistry » Radioisotope Identification. Select A Forum. Fundamentals. ...
There are several engineering issues to be solved in preparing the targets, so barium was used as a safe surrogate to work out ... TAT-11: Radium Targets for the Reactor Production of Alpha-emitting Medical Radioisotopes Published 03 May 2019 Ottawa, ON, ... barium used as a surrogate, extracting radium. ...
  • 1983. Particulate forms of radium and barium in uranium mine waste waters and receiving river waters. (cdc.gov)
  • Relatively little information is available about the fate of radioisotopes in produced water discharges from offshore platforms, and reliable data on bioaccumulation of radium isotopes by marine animals are sparse. (springer.com)
  • The Group 2 alkaline earth metals include Beryllium, Magnesium, Calcium, Barium, Strontium and Radium and are soft, silver metals that are less metallic in character than the Group 1 â ¦ The is used in the manufacturing of aircraft, car engines and missile construction. (euroshoe.com)
  • Alkaline This is unusual as periodic trends would predict element 120 to be more reactive than barium and radium. (euroshoe.com)
  • 78], The chemistry of element 120 is predicted to be closer to that of calcium or strontium[79] instead of barium or radium. (euroshoe.com)
  • Other radioisotopes, such as 60 Co, are now being used in place of radium. (lanl.gov)
  • Specifically, we are interested in the chemical cycles of naturally occurring radioisotopes (e.g. radium, radon), trace metals (e.g. barium, uranium), and nutrients (e.g. nitrate, phosphate). (whoi.edu)
  • Large quantities of oil and gas wastewater with high loads of chloride, barium, strontium, radium and organic compounds left high concentrations in the sediments and pore water. (psu.edu)
  • BARIUM SULFATE) fills the large intestine via the rectum as a CONTRAST MATERIAL. (bioportfolio.com)
  • The most common minerals of barium are baryte (barium sulfate, BaSO4) and witherite (barium carbonate, BaCO3), both insoluble in water. (wikipedia.org)
  • Barium sulfate is used as an insoluble additive to oil well drilling fluid, as well as in a purer form, as X-ray radiocontrast agents for imaging the human gastrointestinal tract. (wikipedia.org)
  • Sulfuric acid is a notable exception because passivation stops the reaction by forming the insoluble barium sulfate on the surface. (wikipedia.org)
  • What mass of barium sulfate can be produced when 100.0 mL of a 0.100-M solution of barium chloride is mixed wit. (bartleby.com)
  • After a month, he founded that mineral barite is composed of barium sulfate BaSO4. (euroshoe.com)
  • Barium has some use in vacuum tubes to remove gases,[50] and barium sulfate has many uses in the petroleum industry,[4] as well as other industries. (ultrarev.com.br)
  • The most common naturally occurring minerals of barium are barite (now called baryte [5] [6] ) ( barium sulfate , BaSO 4 ) and witherite ( barium carbonate , BaCO 3 ), both insoluble in water. (readtiger.com)
  • 1973. The determination of trace amounts of barium in calcium carbonate by atomic- absorption spectrophotometry. (cdc.gov)
  • Calcium, strontium, and barium react with water to produce hydrogen gas and their respective hydroxides , and also undergo transmetalation reactions to exchange ligands . (wikipedia.org)
  • harder than barium and softer than calcium. (ultrarev.com.br)
  • Alkali Earth Metals â Group 2 Elements Included in the group two elements are Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), and Barium (Ba). (ultrarev.com.br)
  • Calcium, strontium, and barium all form octacarbonyl complexes and an 18-electron valence shell. (howlingpixel.com)
  • Analysis of the electronic structure reveals that not only barium but also strontium and calcium may effectively use their ( n − 1)d atomic orbitals in chemical bonding, suggesting they behave like transition metals. (howlingpixel.com)
  • Mention is here made of the formation of saccharates of barium, strontium , and calcium in low concentrations. (dictionary.com)
  • Inorganic compounds that contain barium as an integral part of the molecule. (bioportfolio.com)
  • Barium compounds are added to fireworks to impart a green color. (wikipedia.org)
  • Water-soluble barium compounds are poisonous and have been used as rodenticides. (wikipedia.org)
  • Volatile barium compounds burn with a green to pale green flame, which is an efficient test to detect a barium compound. (wikipedia.org)
  • In addition to the eight toxic metals-arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver-analytes included the underlying hazardous constituents (UHC) antimony, beryllium, nickel, and thallium which could not be eliminated from analysis by process knowledge. (unt.edu)
  • D uring this test, the patient eats a meal containing barium, allowing the radiologist to watch the stomach as it digests the meal. (nyhq.org)
  • You will eat a meal that contains barium, thus allowing the radiologist to watch your stomach as it digests the meal. (verywellhealth.com)
  • During this test, the patient eats a meal containing barium (a metallic, chemical, chalky, liquid used to coat the inside of organs so that they will show up on an X-ray), allowing the radiologist to watch the stomach as it digests the meal. (nyhq.org)
  • Barium enema examination, radioisotope bone scanning, cystoscopy, and proctosigmoidoscopy have a low yield, particularly in early disease, and these procedures are performed for only specific indications that are based on the symptoms or clinical findings. (medscape.com)
  • Barium is given into the rectum as an enema. (nyhq.org)
  • All patients with the diagnosis of colorectal cancer should undergo colonoscopy , even if the diagnosis has already been established with another test such as a barium enema or sigmoidoscopy. (virginiamason.org)
  • Upper GI (gastrointestinal) series (also called barium swallow). (nyhq.org)
  • This test is also known as an upper GI (gastrointestinal) series or a barium swallow . (webmd.com)
  • You will swallow a metallic fluid called barium. (bristolgastro.com)
  • Unstable isotopes of barium that decay or disintegrate emitting radiation. (bioportfolio.com)
  • Barium beefsteak meal. (nyhq.org)
  • In fact, people who have diabetes-related gastroparesis often digest fluid normally, so the barium beefsteak meal can be more useful. (verywellhealth.com)
  • These tests may include barium x-ray, barium beefsteak meal, or a radioisotope gastric-emptying scan. (verywellhealth.com)
  • One or more of the following tests can be used to confirm the diagnosis of diabetic gastroparesis: Barium X-ray, Barium beefsteak test, Radioisotope gastric-emptying scan, Gastric manometry and others. (delveinsight.com)
  • Radioisotope gastric-emptying scan. (nyhq.org)
  • During this test, the patient eats food containing a radioisotope, which is a slightly radioactive substance that will show up on a scan. (nyhq.org)
  • You will eat food that contains a radioisotope, a slightly radioactive substance that will show up on the scan. (verywellhealth.com)
  • The previous version of this CT scanner used a barium check source - the hottest radioisotope source that's available without a license - and a photodiode detector found in the Radiation Watch to scan small objects. (hackaday.com)
  • Tell your doctor and the technologist if there is a possibility you are pregnant or if you recently had a barium exam or received an injection of contrast material for a CT or radioisotope scan. (radiologyinfo.org)
  • Inform your physician if you recently had a barium examination or have been injected with a contrast material for a computed tomography (CT) scan or radioisotope scan . (radiologyinfo.org)
  • Radionuclide bone scan in a 25-year-old man with cortical osteoid osteoma (same patient as in the previous image) shows focal intense uptake of radioisotope corresponding to the site of radiographic abnormality, which is consistent with osteoid osteoma. (medscape.com)
  • Do not schedule this exam within one week after having an exam that uses barium, a radioisotope injection, or oral or intravenous contrast material (such as an MRI or CT scan). (patientsmedical.com)
  • During this test, you will eat food containing a mildly radioactive substance, or radioisotope, that will show up on a scan. (bristolgastro.com)
  • Most commonly, this test is a radioisotope gastric emptying scan. (aboutgimotility.org)
  • To confirm the latter we may do a radioisotope gastric emptying study, anorectal motility and a colonic transit test. (medhelp.org)
  • Dynamic radioisotope scintigraphy for gastric banding adjustme. (mysciencework.com)
  • Dynamic radioisotope scintigraphy for gastric banding adjustment. (mysciencework.com)
  • You drink a liquid (barium), which coats the esophagus , stomach, and small intestine and shows up on X-ray. (webmd.com)
  • The amount of time it takes for the barium meal to be digested and leave the stomach gives the doctor an idea of how well the stomach is working and helps to detect emptying problems that may not show up on the liquid barium X-ray. (nyhq.org)
  • This test can help detect emptying problems that do not show up on the liquid barium x-ray. (verywellhealth.com)
  • Later, Robert Bunsen and Augustus Matthiessen isolated pure barium by electrolysis of a mixture of barium chloride and ammonium chloride. (euroshoe.com)
  • Barium has a medium specific weight and high electrical conductivity. (wikipedia.org)
  • I'm not sure, but isn't there a barium isotope used as a tracer in ct scans or x-rays? (physicsforums.com)
  • Naturally occurring barium (56Ba) is a mix of six stable isotopes and one very long-lived radioactive primordial isotope, barium-130, identified as being unstable by geochemical means (from analysis of the presence of its daughter xenon-130 in rocks) in 2001. (wikipedia.org)
  • A radionuclide ( radioactive nuclide , radioisotope or radioactive isotope ) is an atom that has excess nuclear energy, making it unstable. (wikipedia.org)
  • Barium found in the Earth's crust is a mixture of seven primordial nuclides, barium-130, 132, and 134 through 138. (wikipedia.org)
  • Barium Strontium ions precipitate with soluble sulphate salts. (euroshoe.com)
  • Therefore, this time a group of researchers resorted to the help of barite, or heavy spar - a barium mineral collected on the Belcher archipelago in the Hudson's Bay. (earth-chronicles.com)
  • 2. The method according to claim 1 wherein step (b) comprises adding the first solution to a second solution comprising ammonium carbonate, under conditions of rate of addition and mixing sufficient to precipitate the barium as a solid, whereby the Cs-131 remains dissolved in the combined solution of the first and second solutions. (google.com)
  • Bromine Radioisotopes" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (harvard.edu)
  • This graph shows the total number of publications written about "Bromine Radioisotopes" by people in Harvard Catalyst Profiles by year, and whether "Bromine Radioisotopes" was a major or minor topic of these publication. (harvard.edu)
  • Below are the most recent publications written about "Bromine Radioisotopes" by people in Profiles. (harvard.edu)
  • Alternatively, this test could be an upper gastrointestinal series in which the patient drinks barium that outlines the stomach on an x-ray. (aboutgimotility.org)
  • After fasting for 12 hours, you will drink a thick liquid called barium, which coats the inside of the stomach, making it show up on the x-ray. (verywellhealth.com)
  • The barium coats the upper GI tract so that it will show up clearly on X-rays. (ucsd.edu)
  • Barium coats the organs so that they can be seen on an X-ray. (bristolgastro.com)
  • Barium was identified as a new element in 1774, but not reduced to a metal until 1808 with the advent of electrolysis. (wikipedia.org)
  • Barium itself was finally isolated in 1808 when Humphry Davy used electrolysis with molten salts, and Davy named the element barium, after baryta. (euroshoe.com)
  • For the test, a substance called barium is used. (ucsd.edu)
  • The patient is given an intravenous injection of a radioactive substance, called a radioisotope or tracer, which has been attached to a simple sugar. (virginiamason.org)
  • Ba atoms with atomic weights 126-129, 131, 133, and 139-143 are radioactive barium isotopes. (bioportfolio.com)
  • 1999. Standard test method for barium in brines, seawater, and brackish water by direct-current argon plasma atomic emission spectroscopy. (cdc.gov)
  • 2000. Standard test method for barium in water, atomic absorption spectrophotometry, graphite furnace. (cdc.gov)
  • Barium is a chemical element with the symbol Ba and atomic number 56. (wikipedia.org)
  • The term radioisotope is also loosely used to refer to any radioactive atomic species. (persianblog.ir)
  • Whereas approximately a dozen radioisotopes are found in nature in appreciable amounts, hundreds of different radioisotopes have been artificially produced by bombarding stable nuclei with various atomic projectiles. (persianblog.ir)
  • Barium hydroxide ("baryta") was known to alchemists, who produced it by heating barium carbonate. (wikipedia.org)
  • Its hydroxide, known in pre-modern times as baryta , does not occur as a mineral , but can be prepared by heating barium carbonate. (readtiger.com)
  • Acute barium nitrate intoxication treated by hemodialysis. (cdc.gov)
  • The barium was present in the form of the nitrate in the chemical explosives used while the plutonium was the fissile fuel used. (wikipedia.org)
  • The technologist will also need to know if any barium examinations, contrast injections or radioisotope tests have been performed recently. (healthcareimaging.com.au)
  • Reactions with water and alcohols are very exothermic and release hydrogen gas: Ba + 2 ROH → Ba(OR)2 + H2↑ (R is an alkyl group or a hydrogen atom) Barium reacts with ammonia to form complexes such as Ba(NH3)6. (wikipedia.org)
  • Most radioisotopes produced in quantity are made in the nuclear reactor by one of four reactions (Table 1): neutron-gamma, neutron-proton, neutron-alpha, and neutron-fission. (persianblog.ir)
  • Some of these naturally occurring radioisotopes (primary parents of series) have half-lives (time in which one-half of the atoms decay) greater than 108 years, and therefore have not had time to disappear. (persianblog.ir)
  • Barium is a soft, silvery-white metal, with a slight golden shade when ultrapure. (wikipedia.org)
  • Ultrapure barium is very difficult to prepare, and therefore many properties of barium have not been accurately measured yet. (readtiger.com)
  • it decomposes in water and is somewhat more volatile than barium. (lanl.gov)
  • 63], Strontium and barium do not have as many applications as the lighter alkaline earth metals, but still have uses. (euroshoe.com)
  • At room temperature and pressure, barium metal adopts a body-centered cubic structure, with a barium-barium distance of 503 picometers, expanding with heating at a rate of approximately 1.8×10−5/°C. It is a very soft metal with a Mohs hardness of 1.25. (wikipedia.org)
  • Acute barium poisoning in a dog after ingestion of handheld fireworks (party sparklers). (bioportfolio.com)
  • To report a case of acute barium poisoning in a dog subsequent to ingestion of a common handheld pyrotechnic (sparkler). (bioportfolio.com)
  • Most exceptions are in a few rare and unstable molecular species that are only characterised in the gas phase such as BaF, but recently a barium(I) species has been reported in a graphite intercalation compound. (wikipedia.org)
  • For this reason, metallic barium is often stored under oil or in an inert atmosphere. (wikipedia.org)
  • A fluid called barium (a metallic, chemical, chalky, liquid used to coat the inside of organs so that they will show up on an X-ray) is swallowed. (nyhq.org)
  • A soft, easily oxidized metallic element that ignites spontaneously in air when finely divided, used in pharmaceuticals and in radioisotope form for bone imaging. (dictionary.com)
  • 2005. Uncertainty of inductively coupled plasma mass spectrometry based measurements: An application to the analysis of urinary barium, cesium, antimony, and tungsten. (cdc.gov)
  • Association between concentrations of barium and aluminum in placental tissues and risk for orofacial clefts. (bioportfolio.com)
  • Barium salts are typically white when solid and colorless when dissolved. (wikipedia.org)
  • Natural exposure to and increasing use of barium and aluminum in various products, such as plastics, rubber, and food additives, raise concerns for their potential health impacts on pregnant women and. (bioportfolio.com)
  • Cesium-137 decays to barium-137m, a short-lived decay product, which in turn decays to a nonradioactive form of barium. (stopsprayingcalifornia.com)
  • During this test, the patient is given small amounts of a liquid containing barium to drink using a bottle, spoon, or cup. (barnesjewish.org)
  • The shorter-lived isotopes, barium-140 and lanthanum-140, point to a second test around May 11th. (scitechdaily.com)
  • To test this hypothesis of feast and famine, experts analyzed the oxygen, sulfur, and barium isotopes in the samples of hard spar they collected. (earth-chronicles.com)
  • 133Ba and 241Am were created by the neutron activation of barium and plutonium inside the bomb. (wikipedia.org)
  • Radioisotope thermoelectric generators (RTG's) convert heat from plutonium oxide into electricity using the Seebeck Effect. (uah.edu)
  • Small barium-oxide clusters BamOn+ are studied by mass spectrometry and X-ray absorption spectroscopy (XAS) to discuss stability of the clusters and oxidation state of constituent atoms. (bioportfolio.com)
  • The silvery-white color of barium metal rapidly vanishes upon oxidation in air yielding a dark gray layer containing the oxide. (wikipedia.org)