Thallium: A heavy, bluish white metal, atomic number 81, atomic weight [204.382; 204.385], symbol Tl.Thallium Radioisotopes: Unstable isotopes of thallium that decay or disintegrate emitting radiation. Tl atoms with atomic weights 198-202, 204, and 206-210 are thallium radioisotopes.Mass Spectrometry: An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers.Radioisotopes: 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)Isotopes: Atomic species differing in mass number but having the same atomic number. (Grant & Hackh's Chemical Dictionary, 5th ed)Isotope Labeling: Techniques for labeling a substance with a stable or radioactive isotope. It is not used for articles involving labeled substances unless the methods of labeling are substantively discussed. Tracers that may be labeled include chemical substances, cells, or microorganisms.Zinc Radioisotopes: Unstable isotopes of zinc that decay or disintegrate emitting radiation. Zn atoms with atomic weights 60-63, 65, 69, 71, and 72 are radioactive zinc isotopes.Radioisotope Dilution Technique: Method for assessing flow through a system by injection of a known quantity of radionuclide into the system and monitoring its concentration over time at a specific point in the system. (From Dorland, 28th ed)Carbon Isotopes: Stable carbon atoms that have the same atomic number as the element carbon, but differ in atomic weight. C-13 is a stable carbon isotope.Nitrogen Isotopes: Stable nitrogen atoms that have the same atomic number as the element nitrogen, but differ in atomic weight. N-15 is a stable nitrogen isotope.Oxygen Isotopes: Stable oxygen atoms that have the same atomic number as the element oxygen, but differ in atomic weight. O-17 and 18 are stable oxygen isotopes.Ferrocyanides: Inorganic salts of the hypothetical acid ferrocyanic acid (H4Fe(CN)6).Iodine Radioisotopes: Unstable isotopes of iodine that decay or disintegrate emitting radiation. I atoms with atomic weights 117-139, except I 127, are radioactive iodine isotopes.Strontium Radioisotopes: Unstable isotopes of strontium that decay or disintegrate spontaneously emitting radiation. Sr 80-83, 85, and 89-95 are radioactive strontium isotopes.Tomography, Emission-Computed, Single-Photon: A method of computed tomography that uses radionuclides which emit a single photon of a given energy. The camera is rotated 180 or 360 degrees around the patient to capture images at multiple positions along the arc. The computer is then used to reconstruct the transaxial, sagittal, and coronal images from the 3-dimensional distribution of radionuclides in the organ. The advantages of SPECT are that it can be used to observe biochemical and physiological processes as well as size and volume of the organ. The disadvantage is that, unlike positron-emission tomography where the positron-electron annihilation results in the emission of 2 photons at 180 degrees from each other, SPECT requires physical collimation to line up the photons, which results in the loss of many available photons and hence degrades the image.Zinc Isotopes: Stable zinc atoms that have the same atomic number as the element zinc, but differ in atomic weight. Zn-66-68, and 70 are stable zinc isotopes.Radionuclide Imaging: The production of an image obtained by cameras that detect the radioactive emissions of an injected radionuclide as it has distributed differentially throughout tissues in the body. The image obtained from a moving detector is called a scan, while the image obtained from a stationary camera device is called a scintiphotograph.Krypton Radioisotopes: Unstable isotopes of krypton that decay or disintegrate emitting radiation. Kr atoms with atomic weights 74-77, 79, 81, 85, and 87-94 are radioactive krypton isotopes.Indium Radioisotopes: Unstable isotopes of indium that decay or disintegrate emitting radiation. In atoms with atomic weights 106-112, 113m, 114, and 116-124 are radioactive indium isotopes.Dipyridamole: A phosphodiesterase inhibitor that blocks uptake and metabolism of adenosine by erythrocytes and vascular endothelial cells. Dipyridamole also potentiates the antiaggregating action of prostacyclin. (From AMA Drug Evaluations Annual, 1994, p752)Sodium Radioisotopes: Unstable isotopes of sodium that decay or disintegrate emitting radiation. Na atoms with atomic weights 20-22 and 24-26 are radioactive sodium isotopes.Exercise Test: Controlled physical activity which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used.Radioactivity: 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)Carbon Radioisotopes: Unstable isotopes of carbon that decay or disintegrate emitting radiation. C atoms with atomic weights 10, 11, and 14-16 are radioactive carbon isotopes.Barium Radioisotopes: Unstable isotopes of barium that decay or disintegrate emitting radiation. Ba atoms with atomic weights 126-129, 131, 133, and 139-143 are radioactive barium isotopes.Heart: The hollow, muscular organ that maintains the circulation of the blood.Coronary Disease: An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.Yttrium Radioisotopes: Unstable isotopes of yttrium that decay or disintegrate emitting radiation. Y atoms with atomic weights 82-88 and 90-96 are radioactive yttrium isotopes.Tin Radioisotopes: Unstable isotopes of tin that decay or disintegrate emitting radiation. Sn atoms with atomic weights 108-111, 113, 120-121, 123 and 125-128 are tin radioisotopes.Iron Radioisotopes: Unstable isotopes of iron that decay or disintegrate emitting radiation. Fe atoms with atomic weights 52, 53, 55, and 59-61 are radioactive iron isotopes.Copper Radioisotopes: Unstable isotopes of copper that decay or disintegrate emitting radiation. Cu atoms with atomic weights 58-62, 64, and 66-68 are radioactive copper isotopes.Phosphorus Radioisotopes: Unstable isotopes of phosphorus that decay or disintegrate emitting radiation. P atoms with atomic weights 28-34 except 31 are radioactive phosphorus isotopes.Technetium: The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, atomic number 43, and atomic weight 98.91. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.Antidotes: Agents counteracting or neutralizing the action of POISONS.Beta Particles: High energy POSITRONS or ELECTRONS ejected from a disintegrating atomic nucleus.Radiopharmaceuticals: Compounds that are used in medicine as sources of radiation for radiotherapy and for diagnostic purposes. They have numerous uses in research and industry. (Martindale, The Extra Pharmacopoeia, 30th ed, p1161)Potassium Radioisotopes: Unstable isotopes of potassium that decay or disintegrate emitting radiation. K atoms with atomic weights 37, 38, 40, and 42-45 are radioactive potassium isotopes.Sulfur Isotopes: Stable sulfur atoms that have the same atomic number as the element sulfur, but differ in atomic weight. S-33, 34, and 36 are stable sulfur isotopes.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.Technetium Tc 99m Sulfur Colloid: A gamma-emitting radionuclide imaging agent used for the diagnosis of diseases in many tissues, particularly in the gastrointestinal system, liver, and spleen.Deuterium: Deuterium. The stable isotope of hydrogen. It has one neutron and one proton in the nucleus.Mercury Radioisotopes: Unstable isotopes of mercury that decay or disintegrate emitting radiation. Hg atoms with atomic weights 185-195, 197, 203, 205, and 206 are radioactive mercury isotopes.Cobalt Isotopes: Stable cobalt atoms that have the same atomic number as the element cobalt, but differ in atomic weight. Co-59 is a stable cobalt isotope.Lead Radioisotopes: Unstable isotopes of lead that decay or disintegrate emitting radiation. Pb atoms with atomic weights 194-203, 205, and 209-214 are radioactive lead isotopes.Alopecia: Absence of hair from areas where it is normally present.Cerium Radioisotopes: Unstable isotopes of cerium that decay or disintegrate emitting radiation. Ce atoms with atomic weights 132-135, 137, 139, and 141-148 are radioactive cerium isotopes.Hafnium: Hafnium. A metal element of atomic number 72 and atomic weight 178.49, symbol Hf. (From Dorland, 28th ed)Iron Isotopes: Stable iron atoms that have the same atomic number as the element iron, but differ in atomic weight. Fe-54, 57, and 58 are stable iron isotopes.Gold Radioisotopes: Unstable isotopes of gold that decay or disintegrate emitting radiation. Au 185-196, 198-201, and 203 are radioactive gold isotopes.Sulfur Radioisotopes: Unstable isotopes of sulfur that decay or disintegrate spontaneously emitting radiation. S 29-31, 35, 37, and 38 are radioactive sulfur isotopes.Rodenticides: Substances used to destroy or inhibit the action of rats, mice, or other rodents.Diagnostic Techniques, Radioisotope: Any diagnostic evaluation using radioactive (unstable) isotopes. This diagnosis includes many nuclear medicine procedures as well as radioimmunoassay tests.Tomography, Emission-Computed: Tomography using radioactive emissions from injected RADIONUCLIDES and computer ALGORITHMS to reconstruct an image.Radionuclide Ventriculography: Imaging of a ventricle of the heart after the injection of a radioactive contrast medium. The technique is less invasive than cardiac catheterization and is used to assess ventricular function.Sensitivity and Specificity: Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)Cadmium Radioisotopes: Unstable isotopes of cadmium that decay or disintegrate emitting radiation. Cd atoms with atomic weights 103-105, 107, 109, 115, and 117-119 are radioactive cadmium isotopes.Radioimmunotherapy: Radiotherapy where cytotoxic radionuclides are linked to antibodies in order to deliver toxins directly to tumor targets. Therapy with targeted radiation rather than antibody-targeted toxins (IMMUNOTOXINS) has the advantage that adjacent tumor cells, which lack the appropriate antigenic determinants, can be destroyed by radiation cross-fire. Radioimmunotherapy is sometimes called targeted radiotherapy, but this latter term can also refer to radionuclides linked to non-immune molecules (see RADIOTHERAPY).Astatine: Astatine. A radioactive halogen with the atomic symbol At, atomic number 85, and atomic weight 210. Its isotopes range in mass number from 200 to 219 and all have an extremely short half-life. Astatine may be of use in the treatment of hyperthyroidism.Poisoning: A condition or physical state produced by the ingestion, injection, inhalation of or exposure to a deleterious agent.Lutetium: Lutetium. An element of the rare earth family of metals. It has the atomic symbol Lu, atomic number 71, and atomic weight 175.Rhenium: Rhenium. A metal, atomic number 75, atomic weight 186.2, symbol Re. (Dorland, 28th ed)Gated Blood-Pool Imaging: Radionuclide ventriculography where scintigraphic data is acquired during repeated cardiac cycles at specific times in the cycle, using an electrocardiographic synchronizer or gating device. Analysis of right ventricular function is difficult with this technique; that is best evaluated by first-pass ventriculography (VENTRICULOGRAPHY, FIRST-PASS).Radiometric Dating: Techniques used to determine the age of materials, based on the content and half-lives of the RADIOACTIVE ISOTOPES they contain.Samarium: Samarium. An element of the rare earth family of metals. It has the atomic symbol Sm, atomic number 62, and atomic weight 150.36. The oxide is used in the control rods of some nuclear reactors.Soil Pollutants, Radioactive: Pollutants, present in soil, which exhibit radioactivity.IodobenzenesTandem Mass Spectrometry: A mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, GAS CHROMATOGRAPHY-MASS SPECTROMETRY is involved in separating relatively small compounds by GAS CHROMATOGRAPHY prior to injecting them into an ionization chamber for the mass selection.Scintillation Counting: Detection and counting of scintillations produced in a fluorescent material by ionizing radiation.Tissue Distribution: Accumulation of a drug or chemical substance in various organs (including those not relevant to its pharmacologic or therapeutic action). This distribution depends on the blood flow or perfusion rate of the organ, the ability of the drug to penetrate organ membranes, tissue specificity, protein binding. The distribution is usually expressed as tissue to plasma ratios.Body Mass Index: An indicator of body density as determined by the relationship of BODY WEIGHT to BODY HEIGHT. BMI=weight (kg)/height squared (m2). BMI correlates with body fat (ADIPOSE TISSUE). Their relationship varies with age and gender. For adults, BMI falls into these categories: below 18.5 (underweight); 18.5-24.9 (normal); 25.0-29.9 (overweight); 30.0 and above (obese). (National Center for Health Statistics, Centers for Disease Control and Prevention)Radioactive Waste: 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)Organotechnetium Compounds: Organic compounds that contain technetium as an integral part of the molecule. These compounds are often used as radionuclide imaging agents.Strontium Isotopes: 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.Evaluation Studies as Topic: Studies determining the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. For drugs and devices, CLINICAL TRIALS AS TOPIC; DRUG EVALUATION; and DRUG EVALUATION, PRECLINICAL are available.Kinetics: The rate dynamics in chemical or physical systems.Bromine Radioisotopes: Unstable isotopes of bromine that decay or disintegrate emitting radiation. Br atoms with atomic weights 74-78, 80, and 82-90 are radioactive bromine isotopes.Spectrometry, Mass, Electrospray Ionization: A mass spectrometry technique used for analysis of nonvolatile compounds such as proteins and macromolecules. The technique involves preparing electrically charged droplets from analyte molecules dissolved in solvent. The electrically charged droplets enter a vacuum chamber where the solvent is evaporated. Evaporation of solvent reduces the droplet size, thereby increasing the coulombic repulsion within the droplet. As the charged droplets get smaller, the excess charge within them causes them to disintegrate and release analyte molecules. The volatilized analyte molecules are then analyzed by mass spectrometry.Serum Albumin, Radio-Iodinated: Normal human serum albumin mildly iodinated with radioactive iodine (131-I) which has a half-life of 8 days, and emits beta and gamma rays. It is used as a diagnostic aid in blood volume determination. (from Merck Index, 11th ed)Calcium Isotopes: Stable calcium atoms that have the same atomic number as the element calcium, but differ in atomic weight. Ca-42-44, 46, and 48 are stable calcium isotopes.Selenium Radioisotopes: Unstable isotopes of selenium that decay or disintegrate emitting radiation. Se atoms with atomic weights 70-73, 75, 79, 81, and 83-85 are radioactive selenium isotopes.Subdural Effusion: Leakage and accumulation of CEREBROSPINAL FLUID in the subdural space which may be associated with an infectious process; CRANIOCEREBRAL TRAUMA; BRAIN NEOPLASMS; INTRACRANIAL HYPOTENSION; and other conditions.Dobutamine: A catecholamine derivative with specificity for BETA-1 ADRENERGIC RECEPTORS. It is commonly used as a cardiotonic agent after CARDIAC SURGERY and during DOBUTAMINE STRESS ECHOCARDIOGRAPHY.TritiumTime Factors: Elements of limited time intervals, contributing to particular results or situations.Coronary Angiography: Radiography of the vascular system of the heart muscle after injection of a contrast medium.Coronary Circulation: The circulation of blood through the CORONARY VESSELS of the HEART.Alpha Particles: 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.Gallium Radioisotopes: Unstable isotopes of gallium that decay or disintegrate emitting radiation. Ga atoms with atomic weights 63-68, 70 and 72-76 are radioactive gallium isotopes.Methods: A series of steps taken in order to conduct research.Sodium Pertechnetate Tc 99m: A gamma-emitting radionuclide imaging agent used for the diagnosis of diseases in many tissues, particularly in the gastrointestinal system, cardiovascular and cerebral circulation, brain, thyroid, and joints.Ruthenium Radioisotopes: Unstable isotopes of ruthenium that decay or disintegrate emitting radiation. Ru atoms with atomic weights 93-95, 97, 103, and 105-108 are radioactive ruthenium isotopes.Pentetic Acid: An iron chelating agent with properties like EDETIC ACID. DTPA has also been used as a chelator for other metals, such as plutonium.Gallium: A rare, metallic element designated by the symbol, Ga, atomic number 31, and atomic weight 69.72.Spectrometry, Gamma: Determination of the energy distribution of gamma rays emitted by nuclei. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Tungsten: Tungsten. A metallic element with the atomic symbol W, atomic number 74, and atomic weight 183.85. It is used in many manufacturing applications, including increasing the hardness, toughness, and tensile strength of steel; manufacture of filaments for incandescent light bulbs; and in contact points for automotive and electrical apparatus.Heterocyclic Compounds, 1-Ring: A class of organic compounds containing a ring structure made up of more than one kind of atom, usually carbon plus another atom. The ring structure can be aromatic or nonaromatic.Intestinal Absorption: Uptake of substances through the lining of the INTESTINES.Technetium Tc 99m Pentetate: A technetium imaging agent used in renal scintigraphy, computed tomography, lung ventilation imaging, gastrointestinal scintigraphy, and many other procedures which employ radionuclide imaging agents.Radioisotope Teletherapy: A type of high-energy radiotherapy using a beam of gamma-radiation produced by a radioisotope source encapsulated within a teletherapy unit.Electrocardiography: Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.Angina Pectoris: The symptom of paroxysmal pain consequent to MYOCARDIAL ISCHEMIA usually of distinctive character, location and radiation. It is thought to be provoked by a transient stressful situation during which the oxygen requirements of the MYOCARDIUM exceed that supplied by the CORONARY CIRCULATION.Nuclear Medicine: A specialty field of radiology concerned with diagnostic, therapeutic, and investigative use of radioactive compounds in a pharmaceutical form.Radiometry: The measurement of radiation by photography, as in x-ray film and film badge, by Geiger-Mueller tube, and by SCINTILLATION COUNTING.Rosaniline Dyes: Compounds that contain the triphenylmethane aniline structure found in rosaniline. Many of them have a characteristic magenta color and are used as COLORING AGENTS.Whole-Body Counting: Measurement of radioactivity in the entire human body.Olfactory Nerve Injuries: Traumatic injuries to the OLFACTORY NERVE. It may result in various olfactory dysfunction including a complete loss of smell.Myocardial Stunning: Prolonged dysfunction of the myocardium after a brief episode of severe ischemia, with gradual return of contractile activity.Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization: A mass spectrometric technique that is used for the analysis of large biomolecules. Analyte molecules are embedded in an excess matrix of small organic molecules that show a high resonant absorption at the laser wavelength used. The matrix absorbs the laser energy, thus inducing a soft disintegration of the sample-matrix mixture into free (gas phase) matrix and analyte molecules and molecular ions. In general, only molecular ions of the analyte molecules are produced, and almost no fragmentation occurs. This makes the method well suited for molecular weight determinations and mixture analysis.

*Thallium

... has 25 isotopes which have atomic masses that range from 184 to 210. 203Tl and 205Tl are the only stable isotopes and ... The radioisotope thallium-201 (as the soluble chloride TlCl) is used in small, nontoxic amounts as an agent in a nuclear ... It is the most popular isotope used for thallium nuclear cardiac stress tests. Thallium(III) compounds resemble the ... Like indium, thallium cyclopentadienyl compounds contain thallium(I), in contrast to gallium(III). Thallium (Greek θαλλός, ...

*Isotopes of thallium

Thallium (81Tl) has 37 isotopes with atomic masses that range from 176 to 212. 203Tl and 205Tl are the only stable isotopes and ... 207Tl, with a half-life of 4.77 minutes, has the longest half-life of naturally occurring radioisotopes. Thallium-202 (half- ... Isotopic compositions and standard atomic masses from: J. R. de Laeter; J. K. Böhlke; P. De Bièvre; H. Hidaka; H. S. Peiser; K ... Uncertainty values denote one standard deviation, except isotopic composition and standard atomic mass from IUPAC, which use ...

*Isotopes of thallium

Thallium (Tl) has 37 isotopes which have atomic masses that range from 176 to 212. 203Tl and 205Tl are the only stable isotopes ... Thallium Research from Department of Energy *^ Manual for reactor produced radioisotopes from the International Atomic Energy ... Standard atomic mass: 204.3833(2) u Table. nuclide. symbol historic. name Z(p) N(n) isotopic mass (u). half-life decay. mode(s) ... Isotopes of thallium. From Wikipedia, the free encyclopedia. This is an old revision of this page, as edited by JorisvS. (talk ...

*Tin

... also occurs in 29 unstable isotopes, encompassing all the remaining atomic masses from 99 to 137. Apart from 126Sn, with a ... It does not form wide solid solution ranges in other metals in general, and few elements have appreciable solid solubility in ... ISBN 1-56676-661-3. Dehaas, W.; Deboer, J.; Vandenberg, G. (1935). "The electrical resistance of cadmium, thallium and tin at ... half-life of 230,000 years, all the radioisotopes have a half-life of less than a year. The radioactive 100Sn, discovered in ...

*Isotopes of thallium

Thallium (81Tl) has 37 isotopes with atomic masses that range from 176 to 212. 203Tl and 205Tl are the only stable isotopes and ... Manual for reactor produced radioisotopes from the International Atomic Energy Agency. *^ (PDF) https://web.archive.org/web/ ... List of isotopes[edit]. nuclide. symbol. historic. name. Z(p). N(n). isotopic mass (u). half-life. decay. mode(s)[5][n 1]. ... isotope(s)[n 2]. nuclear. spin. representative. isotopic. composition. (mole fraction). range of natural. variation. (mole ...

*Francium

There are 34 known isotopes of francium ranging in atomic mass from 199 to 232. Francium has seven metastable nuclear isomers. ... Various tests eliminated the possibility of the unknown element being thorium, radium, lead, bismuth, or thallium. The new ... the radioactivity from the sample was from the naturally occurring potassium radioisotope, potassium-40). He then published a ... Francium-223 is the most stable isotope, with a half-life of 21.8 minutes, and it is highly unlikely that an isotope of ...

*Decay chain

The ending isotope of this chain is now known to be thallium-205. Some older sources give the final isotope as bismuth-209, but ... which reduces the weight by 4 atomic mass units (AMUs), and beta, which does not change the atomic weight at all (just the ... Half-lives have been determined in laboratories for many radioisotopes (or radionuclides). These can range from nearly ... A parent isotope is one that undergoes decay to form a daughter isotope. One example of this is uranium (atomic number 92) ...

*Uranium-233

... half-life and critical mass, though its critical mass is still about 50% larger than for plutonium-239. The main difference is ... The thallium-208 being the strongest at 2.6 MeV. 232U (α, 68.9 years) 228Th (α, 1.9 year) 224Ra (α, 5.44 MeV, 3.6 day, with a γ ... The radioisotope bismuth-213 is a decay product of uranium-233; it has promise for the treatment of certain types of cancer, ... Uranium-233 is a fissile isotope of uranium that is bred from thorium-232 as part of the thorium fuel cycle. Uranium-233 was ...

*Isotope

The atomic mass, on the other hand, is measured using the atomic mass unit based on the mass of the carbon-12 atom. It is ... Each atomic number identifies a specific element, but not the isotope; an atom of a given element may have a wide range in its ... and thallium ( 81Tl ), have two odd-even stable isotopes each. This makes a total 30 + 2(9) = 48 stable odd-even isotopes. ... includes medical isotopes) Radionuclide (or radioisotope) Table of nuclides Isotopes are nuclides having the same number of ...

*Neptunium

The isotopes of neptunium range in atomic weight from 225.0339 u (225Np) to 244.068 u (244Np). Most of the isotopes that are ... Despite this, a neptunium atomic bomb has never been built: uranium and plutonium have lower critical masses than 235Np and ... 237Np eventually decays to form bismuth-209 and thallium-205, unlike most other common heavy nuclei which decay into isotopes ... 20 neptunium radioisotopes have been characterized with the most stable being 237Np with a half-life of 2.14 million years, ...

*Decay chain

A parent isotope is one that undergoes decay to form a daughter isotope. One example of this is uranium (atomic number 92) ... Half-lives have been determined in laboratories for many radioisotopes (or radionuclides). These can range from nearly ... stable isotopes of lead. The mass number of every isotope in these chains can be represented as A = 4n, A = 4n + 2, and A = 4n ... The ending isotope of this chain is now known to be thallium-205. Some older sources give the final isotope as bismuth-209, but ...

*Francium

IsotopesEdit. Main article: Isotopes of francium. There are 34 known isotopes of francium ranging in atomic mass from 199 to ... Thallium. Lead. Bismuth. Polonium. Astatine. Radon. Francium. Radium. Actinium. Thorium. Protactinium. Uranium. Neptunium. ... the radioactivity from the sample was from the naturally occurring potassium radioisotope, potassium-40).[29] He then published ... This process, developed by Stony Brook Physics, yields francium isotopes with masses of 209, 210, and 211,[37] which are then ...

*Decay chain

... the remainder from dividing the atomic mass by four gives the chain the isotope will use to decay. There are other decay modes ... Half-lives have been determined in laboratories for many radioisotopes (or radionuclides). These can range from nearly ... The ending isotope of this chain is now known to be thallium-205. Some older sources give the final isotope as bismuth-209, but ... which reduces the mass by 4 atomic mass units (amu), and beta, which does not change the atomic mass at all (just the atomic ...

*Gallium

... has 31 known isotopes, ranging in mass number from 56 to 86. Only two isotopes are stable and occur naturally, gallium- ... Atomic Mass Data Center. 729: 3-128. Bibcode:2003NuPhA.729....3A. doi:10.1016/j.nuclphysa.2003.11.001. Greenwood and Earnshaw, ... ISBN 0-12-352651-5. Downs, Anthony John (1993). Chemistry of aluminium, gallium, indium, and thallium. Springer. ISBN 0-7514- ... a synthetic radioisotope of germanium, in gallium-68 generators. Gallium is used for neutrino detection. Possibly the largest ...

*Stable nuclide

Even-even nuclides number as many as three isobar (nuclide)s for some mass numbers, and up to seven isotopes for some atomic ( ... Thallium-205 (A) Lead-204 (A) Lead-206 (A) Lead-207 (A) Lead-208 (A) Bismuth** and above - No stable isotopes no mass number ... If the predicted half-life falls into an experimentally accessible range, such isotopes have a chance to move from the list of ... Primordially present radioisotopes are easily detected with half-lives as short as 700 million years (e.g., 235U). This is the ...

*Hydrogen

... , as atomic H, is the most abundant chemical element in the universe, making up 75% of normal matter by mass and more ... 1 H is the most common hydrogen isotope with an abundance of more than 99.98%. Because the nucleus of this isotope consists of ... is also sometimes considered as a light radioisotope of hydrogen, due to the mass difference between the antimuon and the ... energetic value of hydrogen produced) is in the range 80-94%. 2 H 2O(l) → 2 H 2(g) + O 2(g) An alloy of aluminium and gallium ...

*Alkali metal

... the exceptions being the light stable isotope lithium-6 and the long-lived radioisotope potassium-40). For a given odd mass ... Of the 26 monoisotopic elements that have only a single stable isotope, all but one have an odd atomic number and all but one ... It displays the +1 oxidation state that all the known alkali metals display, and thallium compounds with thallium in its +1 ... The value listed is the conventional value suitable for trade and commerce; the actual value may range from 6.938 to 6.997 ...

*Hydrogen

... , as atomic H, is the most abundant chemical element in the universe, making up 75% of normal matter by mass and more ... Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium ... H is the most common hydrogen isotope with an abundance of more than 99.98%. Because the nucleus of this isotope consists of ... is also sometimes considered as a light radioisotope of hydrogen, due to the mass difference between the antimuon and the ...

*Radionuclide

Main Uranium isotope Plutonium-238 94. 144. 87.7 y. α. 5593 Synthetic. used in radioisotope thermoelectric generators (RTGs) ... The range of the half-lives of radioactive atoms have no known limits and span a time range of over 55 orders of magnitude. ... Key: Z = atomic number; N = neutron number; DM = decay mode; DE = decay energy; EC = electron capture ... All nuclides that are possible completely stable (spontaneous fission has never been observed for nuclides with mass number , ...

*Radionuclide

Main Uranium isotope Plutonium-238 94. 144. 87.7 y. α. 5593 Synthetic. used in radioisotope thermoelectric generators (RTGs) ... The range of the half-lives of radioactive atoms have no known limits and span a time range of over 55 orders of magnitude. ... Key: Z = atomic number; N = neutron number; DM = decay mode; DE = decay energy; EC = electron capture ... All nuclides that are possible completely stable (spontaneous fission has never been observed for nuclides with mass number , ...

*Radioactive decay

A nucleus with mass number A and atomic number Z is represented as (A, Z). The column "Daughter nucleus" indicates the ... Radionuclide is the more correct term, but radioisotope is also used. The difference between isotope and nuclide is explained ... of the original nucleus with a range of possible masses. This decay, called spontaneous fission, happens when a large unstable ... Both thallium-208 and polonium-212 are radioactive daughter products of bismuth-212, and both decay directly to stable lead-208 ...

*Polonium

... has 33 known isotopes, all of which are radioactive. They have atomic masses that range from 188 to 220 u. 210Po (half ... Therefore, 210Po is used as an atomic heat source to power radioisotope thermoelectric generators via thermoelectric materials ... thallium, lead, and bismuth. Due to the short half-life of all its isotopes, its natural occurrence is limited to tiny traces ... Polonium is a chemical element with symbol Po and atomic number 84. A rare and highly radioactive metal with no stable isotopes ...

*Actinium

The isotopes of actinium range in atomic weight from 206 u (206 Ac) to 236 u (236 Ac). Actinium is found only in traces in ... Atomic Mass Data Center. 729: 3-128. Bibcode:2003NuPhA.729....3A. CiteSeerX 10.1.1.615.5152 . doi:10.1016/j.nuclphysa.2003.11. ... Thirty-six radioisotopes have been identified, the most stable being 227 Ac with a half-life of 21.772 years, 225 Ac with a ... and ending with thallium (205Tl) and near-stable bismuth (209Bi), but this chain existed only in the early Solar System, due to ...

*Zirconium

Twenty-eight artificial isotopes of zirconium have been synthesized, ranging in atomic mass from 78 to 110. 93Zr is the longest ... Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium ... 96Zr has a half-life of 2.4×1019 years, and is the longest-lived radioisotope of zirconium. Of these natural isotopes, 90Zr is ... IsotopesEdit. Main article: Isotopes of zirconium. Naturally occurring zirconium is composed of five isotopes. 90Zr, 91Zr, 92Zr ...

*Germanium

At least 27 radioisotopes have also been synthesized, ranging in atomic mass from 58 to 89. The most stable of these is 68. Ge ... IsotopesEdit. Main article: Isotopes of germanium. Germanium occurs in 5 natural isotopes: 70. Ge. , 72. Ge. , 73. Ge. , 74. Ge ... Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium ... Atomic Mass Data Center. 729 (1): 3-128. Bibcode:2003NuPhA.729....3A. doi:10.1016/j.nuclphysa.2003.11.001.. ...

*Scandium

The isotopes of scandium range from 36Sc to 60Sc. The primary decay mode at masses lower than the only stable isotope, 45Sc, is ... The primary decay products at atomic weights below 45Sc are calcium isotopes and the primary products from higher atomic ... Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium ... this is its only stable isotope. Thirteen radioisotopes have been characterized with the most stable being 46Sc, which has a ...

*Alkali metal

... the exceptions being the light stable isotope lithium-6 and the long-lived radioisotope potassium-40). For a given odd mass ... Atomic number 3. 11. 19. 37. 55. 87 Standard atomic weight (u)[note 7][58][59]. 6.94(1)[note 8]. 22.98976928(2). 39.0983(1). ... Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium ... The value listed is the conventional value suitable for trade and commerce; the actual value may range from 6.938 to 6.997 ...

*Bromine

The most stable bromine radioisotope is 77Br (t1/2 = 57.04 h). The primary decay mode of isotopes lighter than 79Br is electron ... Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium ... 1 distribution of the two isotopes in nature is helpful in identification of bromine containing compounds using mass ... It is intermediate in atomic radius between chlorine and iodine, and this leads to many of its atomic properties being ...
Find Thallium sulfate importer Manufacturers, Thallium sulfate importer Suppliers & Wholesalers of Thallium sulfate importer from China, Hong Kong, USA & Thallium sulfate importer Products from India at TradeKey.com
OBJECTIVES We sought to ascertain the utility of adenosine thallium-201 tomography for assessing graft stenoses late after coronary artery bypass graft surgery. BACKGROUND Although pharmacologic perfusion imaging has been increasingly used in the assessment of patients with coronary artery disease, the value of this stress modality for detecting coronary artery bypass graft stenosis late after surgery is unknown. METHODS We studied 109 patients who underwent both adenosine thallium-201 tomography and coronary angiography at 6.7 +/- 4.8 (mean +/- SD) years after coronary artery bypass graft surgery. Adenosine thallium-201 tomography was assessed quantitatively by computer-generated polar maps of the myocardial thallium-201 activity. RESULTS On coronary angiography, significant graft stenoses were present in 68 patients, 65 of whom had a corresponding perfusion defect as shown by thallium-201 tomography (sensitivity ...
When ingested, thallium is a systemic poison that can produce multiple organ toxicity involving the gastrointestinal, neurologic, and cardiovascular systems. Among the distinctive effects of thallium poisoning are hair loss and painful, usually ascending, peripheral neuropathy such as extreme pain, paresthesia, and weakness in distal extremities. In 1973, the Wprld Health Organization recommended that thallium sulfate use as a rodenticide be discontinued because of its toxicity, and use in the United States for this purpose has been banned since 1975. Approximately 60 to 70% of thallium production is nowadays used in the electronics industry, with the remainder being used in manufacturing pharmaceuticals and glass. (reference). Prussian blue, a pigment discovered in the 1700s, is often used as a sequestering agent for certain heavy metal ions and as an antidote to thallium poisoning. In 2003, the U.S. Food and Drug ...
Detecting viable myocardium and predicting functional improvement: comparisons of positron emission tomography, rest-redistribution thallium-201 single-photon emission computed tomography (SPECT), exercise thallium-201 reinjection SPECT, I-123 BMIPP SPECT and dobutamine stress echocardiography ...
Agatha Christie, who worked as a pharmacist, used thallium as the agent of murder in her detective fiction novel The Pale Horse. The first clue to the murder method came from the victims loss of hair.. Dr. Félix-Roland Moumié, a leader of the Cameroonian anticolonial armed struggle against France, was murdered by thallium poisoning on October 15, 1960. A French agent posing as a journalist was the main suspect of this murder.[1]. The 1995 film The Young Poisoners Handbook was based on the activities of Graham Frederick Young, who killed at least three people with thallium in the 1960s and 1970s. Around the same time, an incidence of thallium poisoning was reported in Beijing. The victims classmate asked for help through the Usenet newsgroup, newly established in mainland China at that time. Worldwide news reports covered the ensuing joint efforts by physicians around the world to diagnose the case.. Australian serial killer Caroline Grills ...
Tl2O - THALLIUM (I) OXIDE. Reactions with Thallium (I) chloride TlCl Obtaining Thallium (I) chloride TlCl. Properties: reacted with sulfuric acid, nitric acid, and oxidized with chlorine ...
Tl2SO4 - THALLIUM (I) SULPHATE. Reactions with Thallium (I) sulphate Tl2SO4 Obtaining Thallium (I) sulphate Tl2SO4. Properties: hydrolysis, soluble in dilute sulfuric acid, decomposed ...
Thallium sulfate has been widely employed as a rodenticide and ant killer. It is odorless and tasteless,giving no warning of its presence. Its use, however, has been prohibited in the U.S. since 1975 as a household insecticide and rodenticide. The electrical conductivity of thallium sulfide changes with exposure to infrared light, and this compound is used in photocells. Thallium bromide-iodide crystals have been used as infrared optical materials. Thallium has been used, with sulfur or selenium and arsenic, to produce low melting glasses with become fluid between 125 and 150C. These glasses ...
THALLIUM(III) TRIFLUOROACETATE 23586-53-0 route of synthesis, THALLIUM(III) TRIFLUOROACETATE chemical synthesis methods, THALLIUM(III) TRIFLUOROACETATE synthetic routes ect.
Get information, facts, and pictures about thallium at Encyclopedia.com. Make research projects and school reports about thallium easy with credible articles from our FREE, online encyclopedia and dictionary.
Thallium (81Tl) has 37 isotopes with atomic masses that range from 176 to 212. 203Tl and 205Tl are the only stable isotopes and 204Tl is the most stable radioisotope with a half-life of 3.78 years. 207Tl, with a half-life of 4.77 minutes, has the longest half-life of naturally occurring radioisotopes.. Thallium-202 (half-life 12.23 days) can be made in a cyclotron[2] while thallium-204 (half-life 3.78 years) is made by the neutron activation of stable thallium in a nuclear reactor.[3]. In the fully ionized state, the isotope 205Tl becomes beta-radioactive, decaying to 205Pb,[4] but 203Tl remains stable.. ...
To evaluate the presence of coronary artery disease (CAD), atrial pacing and thallium 201 scintigraphy were performed in 36 patients with stable angina pectoris who were unable to perform an adequate exercise stress test. All patients underwent cardiac catheterization. Nine patients had previously undergone coronary artery bypass surgery. Significant CAD (one or more lesions ≥ 50%) was present in 33 patients. Atrial pacing produced ischemic ST segment depression (≥ 1 mm) in 18 (55%) patients with CAD, and angina in 20 patients (61%). As the number of vessels with CAD increased, there was no significant change in the sensitivities of pacing-induced angina or ST segment depression for detecting CAD. In the 3 patients without CAD, ST segment depression occurred in 1 patient and angina in none. Thallium 201 scintigraphy demonstrated perfusion defects in 27 (82%) patients with CAD, with fixed defects seen in 13 studies (39%) and reversible defects in 15 (45%). In the 3 ...
A possible limitation of intravenously administered perfusion tracers in detecting hibernating myocardium is their poor availability in low-flow areas. We have hypothesized that intracoronary administration might overcome such a limitation. In two patients with a previous anterior myocardial infarction and a severe residual stenosis of the left anterior descending coronary artery, technetium-99m-sestamibi (74 MBq) was selectively injected into the infarct-related coronary artery before successful PTCA. SPECT imaging was carried out 1 hour after the PTCA. In patient 1, evident tracer uptake was detected in the majority of the antero-apical dys-synergic area, previously characterized by a severe irreversible defect (less than 50% of peak activity) at rest-redistribution thallium SPECT (mismatched pattern); in patient 2, no uptake of sestamibi was detected in the dys-synergic area showing a severe irreversible defect (less than 50% of peak activity) at rest-redistribution ...
Detection of hibernating myocardium in conjunction with thallium … ensure after stress) minutes later acquire …. Splenic perfusion was retrospectively assessed after administration of regadenoson (0.4-mg bolus; Lexiscan …. Pharma Doctor - Compare online pharmacy and drugstores … - Free online pharmacy compare service for consumers with many brand and generic discount drugs from USA, canadian, mexican, indian and international online pharmacy.. Exercise testing is a cardiovascular stress test using treadmill bicycle exercise with ECG and blood pressure monitoring. Pharmacologic stress testing, established after … but enoximone had a higher sensitivity (88% …. The MUGA scan for diagnosing heart disease - heartdisease.about.com Nov 3, 2016 … MUGA scan is a noninvasive test that is particularly useful for assessing the overall function of the left and right ventricles. More ». Adenoscan® (adenosine) is an approved pharmacological stress agent indicated as an adjunct to thallium ...
Thallium (Greek θαλλός, thallos, meaning "a green shoot or twig")[22] was discovered by flame spectroscopy in March 1861.[23] The name comes from thalliums bright green spectral emission lines.[24] After the publication of the improved method of flame spectroscopy by Robert Bunsen and Gustav Kirchhoff[25] and the discovery of caesium and rubidium in the years 1859 to 1860, flame spectroscopy became an approved method to determine the composition of minerals and chemical products. William Crookes and Claude-Auguste Lamy both started to use the new method. William Crookes used it to make spectroscopic determinations for tellurium on selenium compounds deposited in the lead chamber of a sulfuric acid production plant near Tilkerode in the Harz mountains. He had obtained the samples for his research on selenium cyanide from August Hofmann years earlier.[26][27] By 1862, Crookes was able to isolate small quantities of the new element and determine the properties of a few ...
A rock, soil, or stream-sediment sample is decomposed with hydrofluoric acid, aqua regia, and hydrobromic acid-bromine solution. Gold, thallium, indium and tellurium are separated and concentrated from the sample digest by a two-step MIBK extraction at two concentrations of hydrobromic add. Gold and thallium are first extracted from 0.1M hydrobromic acid medium, then indium and tellurium are extracted from 3M hydrobromic acid in the presence of ascorbic acid to eliminate iron interference. The elements are then determined by flame atomic-absorption spectrophotometry. The two-step solvent extraction can also be used in conjunction with electrothermal atomic-absorption methods to lower the detection limits for all four metals in geological materials. ?? 1985....
ESPI High Purity Metal Specialists since 1950 with a company mission to provide a reliable resource for researchers high purity metals, metal compounds and metal alloys for all major universities, international and domestic manufacturing companies and corporate R&D laboratories worldwide, as well as most U.S. government research laboratories. Also manufacturer of DeContam®, an aggressive water based, non-hazardous cleansing agent specifically formulated for the electronic, aerospace and nuclear industries.
ESPI High Purity Metal Specialists since 1950 with a company mission to provide a reliable resource for researchers high purity metals, metal compounds and metal alloys for all major universities, international and domestic manufacturing companies and corporate R&D laboratories worldwide, as well as most U.S. government research laboratories. Also manufacturer of DeContam®, an aggressive water based, non-hazardous cleansing agent specifically formulated for the electronic, aerospace and nuclear industries.
TY - JOUR. T1 - Synthesis and characterization of halogeno- and pseudo-halogeno-thallium(III) porphyrin complexes. Variation of the co-ordination geometry as a function of the axial ligand. AU - Senge, Mathias O.. AU - Ruhlandt, Karin. AU - Regli, Kevin J.. AU - Smith, Kevin M.. PY - 1993. Y1 - 1993. N2 - Several thallium(III) porphyrin complexes [Tl(por)X] with the axial ligand X = MeCO2, CF3CO2, Cl, Br, I, CN, SCN or N3, have been obtained via ligand-exchange reactions from the corresponding thallium(III) trifluoroacetates. All compounds were characterized by 1H NMR, UV/VIS spectroscopy, and elemental analysis. Fourteen compounds were investigated in detail by X-ray crystallography to obtain information on the influence of the axial ligand on the macrocycle core conformation in main-group metalloporphyrins and to establish the molecular stereochemistry of thallium(III) porphyrins with cyano, acetato, thiocyanato, bromo, iodo and azido ...
Læs om Electrochemical Investigation of Liquid Amalgams of Thallium, Indium, Tin, Zinc, Cadmium, Lead, Copper, and Lithium (Classic Reprint). Bogens ISBN er 9781334339752, køb den her
The co-owner of The Kingman Daily Miner was poisoned with what could have been lethal doses of thallium and other chemicals, according to leading toxicology and medical experts.. After experiencing prolonged, unexplained illness with severe symptoms earlier this year, Joseph Soldwedel sought medical treatment and forensic laboratory testing.. "The test findings are highly suggestive, but not confirmatory, of an intentional poisoning with an intent to kill," said Dr. Ernest P. Chiodo, one of the nations leading experts in forensic toxicology who reviewed Soldwedels test results.. Thallium is an odorless, tasteless, and colorless heavy metal. According to U.S. National Library of Medicine, after its discovery in the 1860s thallium was used as rat and ant poisoning. However, due to incidents of intentional poisoning of humans, the use of thallium in rodenticides and pesticides was banned in the United States in 1965. Today it is used in the ...
Pharmacologic stress with dipyridamole has provided useful diagnostic, as well as prognostic, information in patients undergoing thallium-201 myocardial perfusion imaging. With its ultrashort half-life and a potent and consistent vasodilator effect, adenosine may be the coronary vasodilator of choice with myocardial perfusion imaging.. Fifty-one healthy subjects and 93 patients with suspected coronary artery disease constituted the study group. In this multicenter study the comparative safety and diagnostic efficacy of single-photon emission computed tomography (SPECT) thallium imaging during adenosine-induced coronary hyperemia was compared with exercise treadmill stress. There was a mean increase in heart rate of 37% and a mean decrease in diastolic blood pressure of 5% during the adenosine infusion of 140 μg/kg per min for 6 min. Adenosine infusion was well tolerated in 95% of the subjects. Side effects requiring intervention occurred in seven subjects (5%). None of the ...
Thallium-201 is an example of a radioactive isotope that can be used with exercise testing; technetium is another frequently used radionuclide. Thallium emits x-rays and is not taken up as well by heart tissue that has a poor blood flow (perfusion defect), relative to normal parts of the heart. When the chest is scanned, an image can be constructed from the x-rays. Ischemic perfusion defects are reversible-they appear with exertion and disappear at rest. Fixed defects may indicate scar tissue form a prior heart attack, but can also be "stunned" muscle that is not actually irreversibly dead.. Combining thallium with exercise ECGs-whether a treadmill or bicycle ergometer-greatly increases accuracy in detecting ischemia. The Social Security Administration does not require the actual test films showing a perfusion; the full report and medical interpretation are sufficient. The Social Security Administration refers to "documented" thallium ...
Background subtraction is considered the first processing stage in video surveillance systems, and consists of determining objects in movement in a scene captured by a static camera. It is an intensive task with a high computational cost. This work proposes an embedded novel architecture on FPGA which is able to extract the background on resource-limited environments and offers low degradation (produced because of the hardware-friendly model modification). In addition, the original model is extended in order to detect shadows and improve the quality of the segmentation of the moving objects. We have analyzed the resource consumption and performance in Spartan3 Xilinx FPGAs and compared to others works available on the literature, showing that the current architecture is a good trade-off in terms of accuracy, performance and resources utilization. With less than a 65% of the resources utilization of a XC3SD3400 Spartan-3A low-cost family FPGA, the system achieves a frequency of 66.5 MHz reaching 32.8 fps
Thallium-201 SPECT has been proposed as a method for assessment of malignancy grade in gliomas.3-7 There is a selective uptake of 201Tl in highly malignant glioma cells. The mechanism behind intracellular Tl uptake is probably an active transport by less selective ion channels in malignantly transformed glial cells.19-21 The cellular uptake is not solely related to cell biology in the tumour. The uptake is multifactorial, depending also on blood flow in the tumour, extent of pathological vessel invasion, and extent of blood-brain barrier breakdown.. In a recent study we evaluated the accuracy in preoperative glioma malignancy grading on the basis of 201Tl uptake indices, CT findings, and histopathology.22 We found a significant correlation between CT enhancement volumes and 201Tl uptake indices in high grade gliomas. Uptake of 201Tl in non-enhancing gliomas was very low, independent of tumour malignancy grade. A disrupted blood-brain barrier seems to be a prerequisite for intracerebral ...
Evaluating coronary artery disease in patients who cannot exercise adequately before thallium imaging (cardiac blood flow scan).. Dipyridamole is a coronary vasodilator. It works by increasing blood flow to the heart, which mimics an exercise test. It is followed by the thallium test.. Do NOT use dipyridamole if:you are allergic to any ingredient in dipyridamole. Contact your Medical Doctor right away if any of these apply to you.. Before using dipyridamole: Some medical conditions may interact with dipyridamole.. Tell your doctor if you have any medical conditions, especially if any of the following apply to you:. if you are pregnant, planning to become pregnant, or are breast-feedingif you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplementif you have allergies to medicines, foods, or other substancesif you have asthma; chest pain (angina); heart disease; heart block; or abnormal, rapid, slow, or irregular heartbeatif you have ...
Definition of scintillation camera in the Legal Dictionary - by Free online English dictionary and encyclopedia. What is scintillation camera? Meaning of scintillation camera as a legal term. What does scintillation camera mean in law?
TY - JOUR. T1 - Value of combined approach with thallium-201 single-photon emission computed tomography and Epstein-Barr virus DNA polymerase chain reaction in CSF for the diagnosis of AIDS-related primary CNS lymphoma. AU - Antinori, Andrea. AU - De Rossi, G.. AU - Ammassari, A.. AU - Cingolani, A.. AU - Murri, R.. AU - Di Giuda, D.. AU - De Luca, A.. AU - Pierconti, F.. AU - Tartaglione, T.. AU - Scerrati, M.. AU - Larocca, L. M.. AU - Ortona, L.. PY - 1999/2. Y1 - 1999/2. N2 - Purpose: To determine the diagnostic capability of thallium-201 (201Tl) single-photon emission computed tomography (SPECT) combined with Epstein-Barr virus DNA (EBV-DNA) in CSF for the diagnosis of AIDS-related primary CNS lymphoma (PCNSL). Patients and Methods: All human immunodeficiency virus (HIV)-infected patients with focal brain lesions observed between June 1996 and March 1998 underwent lumbar puncture and 201Tl SPECT. Each CSF sample was tested with polymerase chain reaction (PCR) for ...
When coronary artery disease is extensive and of relatively uniform severity, regional myocardial hypoperfusion may be balanced during stress, precluding development of spatially relative perfusion defects. Assessment of the washout of thallium-201 from myocardial regions may provide diagnostic assistance in these cases because washout analysis is spatially nonrelative and hypoperfused myocardial regions manifest a slow thallium-201 washout rate. In 1,265 consecutive patients having quantitatively analyzed stress-redistribution scintigraphy, 46 had a diffuse slow washout pattern with no or a maximum of one regional perfusion defect. Thirty-two underwent clinically indicated coronary angiography, and 23 (72%) of these were found to have three vessel or left main disease. Of 30 similar patients without a diffuse slow washout pattern and with no or a maximum of one perfusion defect, only 5 (17%) had extensive coronary disease. An independent relation between diffuse slow ...
Study Objective: To determine whether clinical markers and preoperative dipyridamole-thallium imaging are both useful in predicting ischemic events after vascular surgery.. Design: Retrospective, observational study.. Setting: University medical center.. Patients: Two hundred fifty-four consecutive patients referred to a nuclear cardiology laboratory before surgery. Forty-four patients had surgery cancelled or postponed after clinical evaluation and dipyridamole-thallium imaging. Surgery was not confirmed for ten. Two hundred patients receiving prompt vascular surgery were the study group.. Measurements and Main Results: Thirty patients (15%) had early postoperative cardiac ischemic events, with cardiac death in 6 (3%) and nonfatal myocardial infarction in 9 (4.5%). Logistic regression identified five clinical predictors (Q waves, history of ventricular ectopic activity, diabetes, advanced age, angina) and two dipyridamole-thallium predictors of ...
Alli results. Can clomid cause metallic taste in mouth. Unlimited mobile calling plans. Getsemani alli estare yo. Getting off aravalli. Alli and wellbutrin for weight. Alli costco coupon. Alli weight loss pills recalled. Difference alli et xenical. Falling water floor plans. Purim stallion trike. Orlistat alli coupon. Protonix metallic taste. Alli week. Lowest price on xenical vs alli. Biaxin gout metallique. Verizon wireless calling plans for seniors. Stallion testosterone level. Orlistat alli reviews. Xenical vs alli ingredients. Alli recall lot numbers, Yahoo xenical vs alli, Unlimited calling plans for india, Allegra baby crib bedding by bananafish alligator, International cellular calling plans, Price allion car sri lanka, Persantine thallium exercise test, Alli acquire, Effects xenical vs alli, Actos fallidos, Cpt code for persantine thallium test, Artrite reumatoide farmaco aravalli, Best calling plans to guatemala, Price 1 box xenical vs alli, Purchase alli diet ...
R/12881/47 Alkali metal and ammonium chlorides in water and heavy water (binary systems) [Text] : сборник научных трудов / Contributors: R.Cohen-Adad et al. - 1 ed. - oxford [etc.] : Pergamon press, 1991. - XXX,533 p. p. : ill. - (Solubility data series, ISSN 0191-5622 ; vol.47). - ISBN 0-08-023918-8 : 50.00 р. Библиогр.в тексте.Указ.в конце книги Перевод заглавия: Хлориды щелочного металла и алюминия в воде и тяжелой воде (бинарные системы)Перевод заглавия: Хлориды щелочного металла и алюминия в воде и тяжелой воде (бинарные системы)ГРНТИ 31.19УДК 543.312546.212.027.04:543 Рубрики: Вода--Химический анализТяжелая вода--Химический анализ Держатели документа: ГПНТБ России Доп.точки ...
Close The Infona portal uses cookies, i.e. strings of text saved by a browser on the users device. The portal can access those files and use them to remember the users data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser. ...
The Tl-I system has been studied using differential thermal analysis, X-ray diffraction, and emf measurements on TlI concentration cells. A more accurate Tl-I phase diagram is presented, according to...
To compare the prevalence of silent myocardial ischaemia associated with coronary artery disease in diabetic subjects with that in controls of similar age and sex. A controlled study in which subjects with positive findings on exercise electrocardiography, 24 hour electrocardiographic recording, or dynamic thallium scintigraphy (diabetics only) underwent coronary angiography. Academic medical centre; referral based cardiology clinic. 136 Diabetic subjects, of whom 72 (33 women, 39 men (mean age 46.0] were insulin dependent and 64 (19 women, 45 men (mean age 49.3] non-insulin dependent. 80 Controls matched for age and sex; all were clients of the Occupational Health Service of Oulu University Central Hospital or the State Occupational Health Service Station in Oulu in whom diabetes had been excluded by a glucose tolerance test. Any subject showing signs of myocardial ischaemia was referred for cardiac catheterization. Exercise electrocardiography and 24 hour electrocardiographic recording ...
At the moment, cardiac catheterisation is the only procedure that shows exactly where the narrowings are in your coronary arteries. It is an essential procedure if you are going to have surgical or catheter treatment for your coronary artery disease. Other tests such as a thallium scan, or an exercise test can indicate if you have coronary artery disease, whilst a CT scan may be able to provide detailed information regarding the coronary arteries.. However, these tests cannot show the precise location and severity of the narrowings.. You may want to discuss the effects of not having the procedure with your doctor. ...
Both Bayesian analysis assuming independence and discriminant function analysis have been used to estimate probabilities of coronary disease. To compare their relative accuracy, we submitted 303 subjects referred for coronary angiography to stress electrocardiography, thallium scintigraphy, and cine fluoroscopy. Severe angiographic disease was defined as at least one greater than 50% occlusion of a major vessel. Four calculations were done: (1) Bayesian analysis using literature estimates of pretest probabilities, sensitivities, and specificities was applied to the clinical and test data of a randomly selected subgroup (group I, 151 patients) to calculate posttest probabilities. (2) Bayesian analysis using literature estimates of pretest probabilities (but with sensitivities and specificities derived from the remaining 152 subjects [group II]) was applied to group I data to estimate posttest probabilities. (3) A discriminant function with logistic regression coefficients derived from the ...
The diagnosis of idiopathic dilated cardiomyopathy should not be made without first performing a coronary angiogram. If the cause of heart failure is unknown this should be stated rather than attributing the cause to dilated cardiomyopathy. Severe ventricular dysfunction may improve dramatically after revascularisation in some cases of coronary disease. Preservation of R waves on the surface electrocardiogram suggests the presence of hibernating myocardium but thallium scintigraphy or positron emission tomography scanning should be employed to investigate this further.. ...
Definition : Gamma camera systems that produce cross-sectional slices of the in vivo distribution of an administered radiopharmaceutical in the body, acquired at various angles around the patient and displayed as a computer-reconstructed tomographic image. These systems typically include a mechanical gantry to support and rotate the camera head and collimators in a circular or elliptical orbit around the body. Systems with multiple camera heads and/or coincidence imaging capabilities are also available. Single photon emission tomography systems are mostly used for whole-body bone imaging, brain perfusion studies, and cardiac imaging.. Related Terms : "Software, Gamma Camera Scanning, Single Photon Emission Computed Tomography" , "Software, Nuclear Medicine Study" , "Software, Nuclear Medicine Study, Cardiac Stress Exercise/Thallium" , "Software, Nuclear Medicine Study, Liver" , "Software, Nuclear Medicine Study, Pulmonary" , "Software, Nuclear Medicine Study, Renal" , "Software, Nuclear ...
We found that lower HRR measured even as long as 5 min following maximal exercise was independently associated with higher CVD and all-cause mortality in men with diabetes. This association persisted even after accounting for age, cardiorespiratory fitness, prior CVD, and other possible confounders. Our findings are consistent with previous research (1) that has shown strong associations between mortality and impaired HRR in adults referred for symptom-limited exercise testing and thallium scintigraphy for diagnostic purposes, but to our knowledge our results are the first to show this association in patients with diabetes. It is important to note, however, that HRR was not the strongest predictor of risk. Therefore, when assessing risk in men with diabetes, it should not be used alone but rather in conjunction with other strong predictors, such as cardiorespiratory fitness.. Epidemiological studies have consistently shown that low physical activity and low cardiorespiratory fitness are ...
Gilles Barone-Rochette, Mélanie Leclère, Alex Calizzano, Estelle Vautrin, Gallazzini-Crepin Céline, et al.. Stress thallium-201/rest technetium-99m sequential dual-isotope high-speed myocardial perfusion imaging validation versus invasive coronary angiography. Journal of Nuclear Cardiology, Springer Verlag, 2015, 22 (3), pp.513-522. ⟨10.1007/s12350-014-0016-0⟩. ⟨inserm-02440579⟩ ...
The prevalence of a high risk exercise (Ex) Tl-201 (Tl) scintigram (scint) was determined in 295 consecutive patients (pts) with angiographic (angio) (,50% stenosis) coronary artery disease (CAD) and correlated with extent of CAD and Ex stress test findings. A high risk scint by quantitative criteria was defined as either: 1) a typical left main (LM) CAD pattern showing greater than or equal to 25% homogenous disease in Tl activity in septal and posterolateral walls; 2) a multivessel disease (MVD) pattern showing abnormal Tl uptake and/or washout in multiple vascular scan segments; 3) increased lung Tl uptake. The typical LMCAD pattern was observed in 6 of 43 pts (14%) with LMCAD compared to 2% of 53 pts with 3VD (p=0.03), 3% of 99 pts with 2VD (p=0.02) and 2% of 100 pts with 1VD (p-0.01). The MVD scint pattern was seen in 67% of pts with LMCAD compared to 49% (p=0.05) in 3VD pts, 41% (p=0.004) in 2VD pts and 24% (p=,0.0001) in 1VD pts. Prevalence of abnormal lung Tl was comparable in LMCAD ...
These programs provide various means to evaluate statistics and comparisons for series of images that stem from myocardial perfusion imaging. mia-2dmyocard-ica This program is used to run a ICA on a series of myocardial perfusion images to create sythetic references that can be used for motion correction by image registration. If the aim is to run a full motion compensation then it is better to create a segmentation set and use mia-2dmyoica-nonrigid. If the input data is given by means of a segmentation set, then on can also use mia-2dmyocard-icaseries. This program is essentially used to test different options on how to run the ICA forreference image creation.. mia-2dmyocard-icaseries This program is used to run a ICA on a series of myocardial perfusion images given in a segmentation set in order to create sythetic references that can be used for motion correction by image registration. If the aim is to run a full motion compensation then it is better run mia-2dmyoica-nonrigid, since this ...
Osteoporosis of the spine. Coloured scintigram of the spine of a patient with osteoporosis. The T12 vertebra has developed a compression fracture and appears yellow. Osteoporosis is characterised by loss of bone density and deterioration of bone tissue, and causes pain and immobility. It is most common in post-menopausal women. A diet rich in calcium and regular weight-bearing exercise can help prevent it. Prior to a scintigram the patient is injected with a radioactive tracer, here technetium-99, that accumulates in the bones. A gamma camera is then used to detect the gamma rays emitted by the tracer. - Stock Image C022/6831
The redistribution of thallium-201 (201Tl) after coronary vasodilation was studied in 14 dogs with a proximal stenosis of the left circumflex coronary artery that did not reduce basal flow but attenuated reactive hypermia. During an 8-10-minute i.v. infusion of adenosine, radioactive microspheres and 201Tl were injected into the left atrium. Sequential cardiac scintiscans and microsphere injections permitted subsequent determination of coronary blood flow during the redistribution of 201Tl. After 15-220 minutes of observation, the dogs were killed and the hearts removed for the measurement of the activity of 201Tl and the radioactive microspheres in the normal (left anterior descending coronary artery [LAD]) and flow-restricted (left circumflex coronary artery [LCX]) regions. The ratios of the activity in LAD/LCX for microspheres (TRmic) and for 201Tl (RT1) were compared with the activity ratio determined from the scintiscan (Rscan). Rmic for the microsphere simultaneously injected with ...
This paper describes and discusses new experimental investigations of the excitation, absorption and emission spectra, phosphorescent decay curve characteristics, thermoluminescence and photoconductivity of potassium chloride phosphors activated by thallium and of the thermoluminescence of potassium chloride phosphors activated by barium, by strontium or by thermal or mechanical strains. It is concluded that for concentrations of more than about 0·001 mol. Tl the KCl:TlCl phosphors contain a number of different centres. Reasons are given for suggesting that some of these may be: (1) Tl+ ions at substitutional sites and not near to other Tl+ ions at neighbouring positive ion sites, (2) TlCln complexes at special sites near defects or along dislocations, (3) lattice distortions produced by the incorporation of Tl+ or other foreign ions. Since the main emission peaks appearing in the thermoluminescence of KCl: Tl at 200 and 300 °K also occur in the KCl phosphors activated by barium, by ...
Series 200: The Series 200 Detector provides signal-to-noise ratio of >300:1 for trace analysis using a 150 W Xenon source. Maximum analysis flexibility is provided by full wavelength programming (Ex 200-850 nm, Em 250-900 nm), background subtraction and spectrum memory. Series 200a: The Series 200a Detector provides signal-to-noise Raman peak of water 525 or more tangent, or 700 or more baseline method for trace analysis, using a 150 W Xenon source. Maximum analysis flexibility is provided by full wavelength programming (Ex 200-850 nm, Em 250-900 nm), background subtraction and spectrum memory.
This paper presents a novel algorithm for mobile-object segmentation from static background scenes, which is both robust and accurate under most of the common problems found in motion segmentation. In our first contribution, a case analysis of motion segmentation errors is presented taking into account the inaccuracies associated with different cues, namely colour, edge and intensity. Our second contribution is an hybrid architecture which copes with the main issues observed in the case analysis by fusing the knowledge from the aforementioned three cues and a temporal difference algorithm. On one hand, we enhance the colour and edge models to solve not only global and local illumination changes (i.e. shadows and highlights) but also the camouflage in intensity. In addition, local information is also exploited to solve the camouflage in chroma. On the other hand, the intensity cue is applied when colour and edge cues are not available because their values are beyond the dynamic range. ...
A myocardial perfusion scan takes images of the blood supply (or what your cardiologist may call "perfusion") to the heart muscle using a gamma camera. The blood supply is made visible to the camera by using a small amount of radioactive tracer, which is injected into an arm vein. Occasionally an alternative tracer called thallium is used.. Depending on the exact heart condition in question, the procedure may be performed at rest, with the heart under stress or most commonly both. Myocardial scans give information that is useful in diagnosing and managing conditions such as coronary artery disease, dead tissue resulting from a lack of blood supply and diseases of the heart muscle.. A stress myocardial perfusion scan examines the blood supply to the heart muscle using a gamma camera. The blood supply is made visible to the camera by using a small amount of radioactive tracer, which is injected into an arm vein. The injection is given during stress exercise on a treadmill, then again while ...
Dr. Hurwitz would like the scope of our study to be broader. Our study was designed to address a specific issue-the identification of three-vessel or left-main disease in patients with a normal resting electrocardiogram who had exercise testing. This particular scenario in exercise electrocardiography can be expected to be at its best (yielding interpretable ST segments in the setting of severe disease), whereas thallium-201 scintigraphy is not (a relative perfusion technique where abnormalities in all three territories occur in less than one third of patients with three-vessel disease) [1]. We agree that there are many other useful applications of perfusion imaging in which Bayesian principles are used. However, we feel that it is important to determine in which cases such technology is effective and in which cases similar performance can be provided at less expense ...
Injected intravenously, the radioactive tracer is rapidly absorbed by the myocardium, the middle layer of muscle tissue that forms most of the wall of the heart. The tracer is normally distributed evenly in heart muscle. Thus, deficient blood flow to a portion of the myocardium is readily detectable by decreased uptake in that area. Evidence of recent and not-so-recent myocardial infarcts will be visible, but most persons with coronary heart disease who have not had a previous infarction will have normal perfusion patterns when they are at rest. In such a patient a thallium stress test is performed; the substance is injected while the individual is exercising so that areas of transient ischemia (temporary reduction in blood flow to the heart) can be identified and the patient treated to prevent myocardial infarction. An alternative means of stressing the heart that can provide information comparable to exercise is the injection of adenosine, a vasodilator. This test is used to diagnose ...
Usually dual-isotope perfusion imaging at rest (201-Thallium) and at stress (99m-Technetium-MIBI). Some patients will have a 2-day MIBI protocol. Gated SPECT and attenuation-correction images will be obtained. Treadmill stress will be performed. If a patient is unable to exercise, adenosine or dobutamine will be given ...
To detect heart problems that may not be apparent at rest, an exercise stress test reveals how well your heart functions when it works harder. You will walk on a treadmill, with the speed and incline increased gradually. Any chest pain can be compared with changes on the ECG that show a lack of oxygen to the heart muscle.. If you are unable to walk as exercise for any reason, we may inject medications through a vein to simulate exercise-related stress on the heart.. A nuclear cardiac scan is another exercise stress test that uses a radioactive substance, or tracer, to produce images of the heart muscle. A small amount of tracer, Technetium or Thallium, is injected into a vein in your arm while you walk on a treadmill, then images of the heart are taken. Blood flow to different regions of the heart can be seen, and reduced flow to any area of the heart during stress, with normal blood flow to the same area at rest, indicates significant artery narrowing. ...
Flores, L.G.; Hoshi, H.; Nagamachi, S.; Ohnishi, T.; Watanabe, K.; Fukiyama, J.; Nao-i, N.; Sawada, A., 1995: Thallium-201 uptake in eosinophilic granuloma of the frontal bone: comparison with technetium-99m-MDP imaging
The kinetic and mechanistic features of a new series ofplatinum-thallium cyano compounds containing a direct andunsupported by ligands metal-metal bond have been studied insolution, using standard mix and measurespectrophotometric technique and stopped flow method.These reactions are interpreted as oxidative addition of the cspecies to the square planar Pt(CN)42-complex. Each of these processes was found to befirst-order in Pt(CN)42-, the corresponding TIIIIcomplex and a cyanide ion donating species whichacts as a catalyst. Both di- and trinuclear complexes werestudied, and the kinetically significant thallium complexes intheir formation and the catalytically active cyanide sourcesare as follows: [(CN)5PtTl(CN)3]3-: Tl(CN)4 (alkaline region), Tl(CN)3(slightly acidic region) and CN ; [(CN)5Pt Tl(CN)] : Tl(CN)2+and Tl(CN)2+; [(CN)5Pt Tl Pt(CN)5]3-: [(CN)5Pt Tl(CN)] and HCN. Appropriatemechanisms were postulated for the overall reactions in allcases, which include i) metal ...
The American Heart Association explains the various non-invasive test and cardiac procedures, such as ECG, EKG, Electrocardio-graphy, Electrocardiogram, Ambulatory Electrocardiography, Holter Monitoring, Ambulatory ECG, Ambulatory EKG, Echocardiography, echocardiogram, Computer Imaging, Tomography, CT, CAT scan, EBCT, PET, DCA, DSA, MRI, SPECT, Exercise Stress Test and thallium stress test.
What is a thallium/myoview stress test?. This is a stress test involving radioactive isotope substances injected into your body. They are used to find out if your heart muscle receives enough blood supply during exercise. These substances will not change the way you feel. An intravenous (IV) drip will be started in your arm. The isotopes are injected into your IV and pictures of your heart will be taken in approximately 15 minutes. You will be asked to return to the test center 2-4 hours afterwards for the treadmill/laying down portion of the testing. Please do not have any caffeine in between the two tests and avoid smoking. It is important that you give your best effort on the treadmill. Pictures will be taken again after the treadmill portion of the test. Your doctor will call you with the results of the test within a few days. *Please have a light breakfast and NO caffeine, this includes decaffeinated*. Time: The stress test may take about 6 hours with a break in ...
TY - JOUR. T1 - Isotopic precision for a lead species (PbEt4) using capillary gas chromatography coupled to inductively coupled plasma-multicollector mass spectrometry. AU - Krupp, Eva Maria. AU - Pecheyran, C AU - Pinaly, H AU - Motelica-Heino, M AU - Koller, D AU - Young, S M M AU - Brenner, I B AU - Donard, O F X PY - 2001/7/31. Y1 - 2001/7/31. N2 - Precision and accuracy of lead isotope ratios of a volatile lead species (PbEt4) were determined by coupling a capillary GC to a magnetic sector multicollector ICP-MS. PbEt4 was prepared by ethylation of a certified lead isotope solution (NIST SRM 981). Coupling was achieved by a transfer line, which allowed simultaneous introduction of a thallium standard solution to correct for mass discrimination. Seven isotopes (Hg-202, Tl-203, Pb-204, Tl-205, Pb-206, Pb-207, Pb-208) were monitored simultaneously with a transient resolution of 50 ms. Pb isotope ratios for the PbEt4 peaks were calculated using transient peak integrals of ...
Note: Patients at increased risk for coronary artery disease or cardiac dysfunction (e.g., greater than 65yo, diabetes, history of hypertension, elevated LDL, first degree relative with coronary artery disease) will undergo full cardiac evaluation and will not be eligible if they demonstrate significant irreversible ischemia on stress thallium or an ejection fraction less than 40%.. - Significant COPD or other chronic pulmonary restrictive disease with PFT s indicating an FEV1 less than 50% or a DLCO less than 40% predicted for age. Note: Patients who have shortness of breath with minimal exertion or who are at risk for pulmonary disease (e.g., chronic smokers) will undergo pulmonary function testing and will not be eligible if their FEV1 is less than 50% of expected.. ...
Potassium Nitrate Suprapur® - P4145-1 P4145-1 P4145-2 Chemicals, EMD Millipore Trademark Products, Suprapur® Assay (acidimetric) .......... min. 99% Sulfate .......... 30 ppm max. Rubidium, Sodium .......... 20 ppm max. Cesium, Chloride .......... 5 ppm max. Barium .......... 1 ppm max. Lithium .......... 0.2 ppm max. Calcium, Magnesium, Strontium .......... 0.1 ppm max. Mercury .......... 0.01 ppm max. Aluminum, Iron .......... 0.05 ppm max. Manganese, Nicke, Thallium, Zinc .......... 0.005 ppm max.
Multi-element Calibration Standard 3, Matrix per Volume: 5% HNO3 per 125 mL, Concentration of Element: 10mg/mL Silver, 10mg/mL Aluminium, 10mg/mL Arsenic, 10mg/mL Barium, 10mg/mL Beryllium, 10mg/mL Bismuth, 10mg/mL Calcium, 10mg/mL Cadmium, 10mg/mL Cobalt, 10mg/mL Chromium, 10mg/mL Cesium, 10mg/mL Copper, 10mg/mL Iron, 10mg/mL Gallium, 10mg/mL Mercury, 10mg/mL Indium, 10mg/mL Potassium, 10mg/mL Lithium, 10mg/mL Magnesium, 10mg/mL Manganese, 10mg/mL Sodium, 10mg/mL Nickel, 10mg/mL Lead, 10mg/mL Rubidium, 10mg/mL Selenium, 10mg/mL Strontium, 10mg/mL Thallium, 10mg/mL Vanadium, 10mg/mL Uranium, and 10mg/mL Zinc. Mercury is supplied as a separate solution due to incompatibility with other elements.
Controversy: whether or not preoperative cardiac testing can ever be justified. It is clear that preoperative testing can stratify patients with regards to risk [Landesberg G et al. Circulation 108: 177, 2003], however in order for cardiac testing to be defensible, anticipated management changes (i.e. revascularization) must improve outcomes.. Data Supporting Preoperative Cardiac Testing:. There are no prospective studies in support of preoperative cardiac testing. The most widely cited retrospective study comes from Landesberg et al., who retrospectively reviewed the perioperative course of 502 patients undergoing major vascular surgery, and found that mortality was lower in those who had moderate-severe reversible ischemia on thallium scanning and underwent revascularization (n = 74) than those who did not (n = 74, OR 0.52, p = 0.018) [Landesberg G et al. Circulation 108: 177, 2003] Data Not Supporting Preoperative Cardiac Testing:. The largest prospective study assessing the utility of ...
Heart surgery involves a lot of precision and requires much accuracy and performance of this surgery needs the use of cutting edge technologies like Cardiac MRI, PET scan, 256 slice CT scan SPECT thallium, robotic surgery and 3D echocardiography. These modern cardiac surgery facilities are available at world class cardiac surgery hospitals. These hospitals are the best for heart surgery. The technologies available in these hospitals are affordable in cost and have a lead to enhance the success rate of heart operations in India. One thing to remember is that cardiac procedures like open heart surgery are a major medical procedure. It is a serious surgery and has to be done in the presence of the family members of the patient. The term "heart surgery" it needs stress for most cardiac patients and their family members. It is for this reason that most cardiac patients like to get done heart surgery by the best cardiac surgeons ...
Heart surgery involves a lot of precision and requires much accuracy and performance of this surgery needs the use of cutting edge technologies like Cardiac MRI, PET scan, 256 slice CT scan SPECT thallium, robotic surgery and 3D echocardiography. These modern cardiac surgery facilities are available at world class cardiac surgery hospitals. These hospitals are the best for heart surgery. The technologies available in these hospitals are affordable in cost and have a lead to enhance the success rate of heart operations in India. One thing to remember is that cardiac procedures like open heart surgery are a major medical procedure. It is a serious surgery and has to be done in the presence of the family members of the patient. The term "heart surgery" it needs stress for most cardiac patients and their family members. It is for this reason that most cardiac patients like to get done heart surgery by the best cardiac surgeons ...
Inorganic compounds are rather simple chemicals present in ground water. These chemicals are generally described as mineral in nature and usually exist as ions (chemical substances with a positive or negative charge) when dissolved in water. Typical examples include sodium, iron, calcium, magnesium, manganese, nitrate, chloride, sulfate, and zinc. Many of these chemicals are naturally occurring minerals that are dissolved from the rock/soil which make up the aquifer or water-bearing rock formations below the soil surface. However, some of these compounds may be introduced into ground water by human activities. Nitrate (an agricultural fertilizer) and sodium chloride (road salt) are two examples. The Water Utility tests all of its wells for nearly 30 different inorganic compounds including all the chemicals named above plus arsenic, barium, cadmium, lead, mercury, selenium, and thallium.. ...
Treadmill, stress echocardiography, Thallium and Angiography do not detect early blockages. Treadmill can miss blockages up to 70%; stress echocardiography up to 60%, angiography upto 40%.. Most heart attacks occur because of a plaque rupture in patients with blockages of less than 50%. If the blockage is more than 70% the patient usually presents with heart pain and not massive heart attack.. The only way to detect heart blockages before they cause symptoms or are detected in conventional tests is to measure the wall thickness of the neck artery or the leg artery. Normally, the wall thickness is less than 0.5mm. If the wall thickness is more than 0.75mm, it is suggestive of underlying heart blockages and if it is more than 1mm, it is suggestive of blockages in all three arteries of the heart.. Any thickness of more than 1mm is called as a plaque and a plaque area calculated by high resolution ultrasound is a new marker for heart blockages, progression as well as regression.. If the artery ...
A bulky, optically active monoanionic scorpionate ligand, tris(4S-isopropyl-5,5-dimethyl-2-oxazolinyl)phenylborate (To P*), is synthesized from the naturally occurring amino acid l-valine as its lithium salt, Li[To P*] (1). That compound is readily converted to the thallium complex Tl[To P*] (2) and to the acid derivative H[To P*] (3). Group 7 tricarbonyl complexes To P*M(CO) 3 (M = Mn (4), Re (5)) are synthesized by the reaction of MBr(CO) 5 and Li[To P*] and are crystallographically characterized. The ν CO bands in their infrared spectra indicate that π back-donation in the rhenium compounds is greater with To P* than with non-methylated tris(4S-isopropyl-2-oxazolinyl)phenylborate (To P). The reaction of H[To P*] and ZnEt 2 gives To P*ZnEt (6), while To P*ZnCl (7) is synthesized from Li[To P*] and ZnCl 2. The reaction of To P*ZnCl and KOtBu followed by addition of PhSiH 3 provides the zinc hydride complex To P*ZnH (8). In this study, compound 8 is the first example of a ...
LNH provides complete laboratory, blood bank, Angiography, Echocardiography, Exercise tolerance testing (ETT), Thallium stress test, CT scanning, MRI, Carotid Doppler, Dialysis, ultrasound, diabetic care and physiotherapy services round the clock which not only saves the patient and their families from running around but at the same time speaks of the multi specialization structure of the hospital. 24 hours availability of all sub specialties in medicine such as cardiology, chest medicine, nephrology, infectious disease, neurology and vascular surgery makes this unit a very safe place for open heart surgery ...
This method is like the scintiscan of other organs, and is a relatively new and simple method of examination which yields a great deal of information. However, it is usually performed only in specialized medical centers.. This so-called non-invasive procedure does not cause any discomfort. The patient can feel only the injection of a small amount of radioactive tracer material into a vein of his arm. He is then placed under a highly sensitive instrument that detects the radioactivity and converts it into a film.. There are two basic methods for heart scintiscan. One method involves radioactive tracers which accumulate in healthy areas of the heart muscle with a sufficient blood supply, but not in the diseased areas with insufficient supply. The radioactive tracers do not accumulate in the diseased areas, because of insufficient blood supply. One such tracer is thallium which has biological features similar to potassium. The second method uses pyrophosphate which accumulates in the opposite ...
APF = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except quarter-mask respirators. The following filters may also be used: N99, R99, P99, N100, R100, P100 ...
A nuclear medicine test in which thallium, a radioactive isotope, is injected into a vein during exercise and then scanned with a special instrument in an effort to detect myocardial ischemia ...
Palladium chloride, aswell accepted as aegis dichloride, aegis chloride, anhydrous chloride, toxic, for advancing a appropriate catalyst, the atomic sieve; the alertness of non-conductive actual coating; assembly of gas sensors, analytic reagents. The red-brown apparent powder, baffling in water, hydrochloric acid, ethanol, acetone and hydrobromic acid. For assurance of palladium, mercury, thallium and iodine, attenuate…
M-87 (NGC 4486), a radio galaxy in the Virgo cluster, exhibits several unusual features which prompted a search for high energy X-radiation from it. Soft X-rays have been detected from the galaxy implying an X-ray luminosity of 10 to the 43rd ergs/sec. The X-ray datum, the optical emission from an unusual jet extending from the nucleus of the galaxy and the radio core emission can all be fitted to a single power-law spectrum characterized by a spectral index of -0.80. Polarization of the optical radiation from the jet indicates that the synchrotron mechanism is probably operative there. A balloon-borne experiment was performed in August, 1967 in an attempt to observe a high energy extrapolation of the radiation from M-87. The detector system is similar to that used previously by the Gamma-Ray Astronomy Group at Rice University. The central detector is a sodium iodide scintillator crystal (thallium activated) 5 cm thick with a sensitive area of 75 cm2 . An on-board 128 channel pulse-height ...
Recent advances in nuclear myocardial perfusion imaging (MPI) have made it possible to develop a dual-isotope protocol for high-speed acquisition with image quality and radiation delivery comparable to that obtained with conventional single isotope p
Aero Service refers to Aero Service, Inc., T.I. to Texas Instruments, Inc., and LKB to LKB Resources, Inc. You can click on parts of the index map to view the references for the surveys. The surveys were flown with east-west flightlines spaced at about 10 km and north-south tie-lines spaced at about 40 km. The nominal survey altitudes were 122 m above the ground with a detector volume of about 50 L of thallium doped sodium iodide detectors. The data were corrected by the contractors for aircraft and cosmic background, altitude variations, Compton scattering, and airborne bismuth-214. Some of the gamma-ray systems were calibrated such that the data were provided by the contractors as apparent surface concentrations of potassium, uranium, and thorium. For the other surveys, the data were provided as counts per second. The data were processed by the U.S. Geological Survey (USGS) to convert the count rates to concentration units. This was done by comparing the data to calibrated surveys and ...
Vibrational data, for several common metal-oxyanion ion pairs $(M{^{+}}ClO_{3}{^{-}}, M{^{+}}NO_{3}{^{-}}, M^{+}C1O_{4}{^{-}})$, isolated from the vapor phase in both inert and associating matrices, have become available in recent years. The alkali metal and thallium sulfates are also volatile, but require significantly higher temperatures for vaporization. ($\sim$ $1100^\circ K$), which complicates the matrix isolation studies. Data have now been obtained for the alkali metal sulfate ion triplets, isolated in argon and xenon matrices, after a study of the glassy deposits of the sulfate vapors in an effort to adjust vaporization conditions to minimize salt decomposition to $SO_{2}, \ M_{2}O$ etc., as well as to obtain the infrared spectra of the pure glassy metal sulfates. Based on the magnitude and extent of splitting of the sulfate triply degenerate modes the ion-triplet spectra are consistent with a $D_{2d}$ bidentate structure ...
C08F4/60-Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof ...
Browse many computed properties for this cubic Li2MgTl compound, including formation energy from the elements, energy of decomposition into the set of most stable materials at this chemical composition, bulk crystalline density, and band gap. Also known as: Lithium magnesium thallium (2/1/1). Cite this material using DOI 10.17188/1204307.
Beheading requires no drugs, unless, of course, the sword wielder has a near miss. Hanging can have some problems-if the drop is too short, the strangulation can be a problem. If it is too long, decapitation can result. Firing squads can produce the required results provided everyone is a pretty good shot. One shot to the back of the head has pretty reliable results. Garroting works but it just takes a little longer. Hemlock had its day, perhaps it could be brought back. Perhaps someone could channel Socrates to ask him how it went. A cyanid capsule, carefully crunched between the upper and lower second and third molars has worked for many. Thallium poisoning, such as that used on Alexander Levitninko can do the job but it is terribly slow. An overdose of heroin could be a last resort but getting approval to use an illicit drug could be an issue. Bring back Old Sparky or the Gas Chamber-As they told Barbara Graham, "When you hear the pellets drop, count to ten, its easier that way." Her ...
I recommend this test when I suspect metal toxicity as a cause of symptoms. The test measures urinary levels of the following elements:- aluminium, antimony, arsenic, barium, beryllium, cadmium, chromium, cobalt, copper, lead, manganese, mercury, molybdenum, nickel, selenium, thallium, tin and zinc. It is performed on a urine sample collected after a dose of DMSA, an substance which chelates metals and allows them to be excreted in urine. The reason for this is that toxic metals get "stuck" in body tissues but DMSA "grabs" them so they are excreted in urine. This is the most reliable measure of toxic metals. ...
Remote indian ocean. Guaranteeing buy real cialis online canada ensuant stigma, roles. Npsnet. Hemp seeds that can arise from an increase immensely unpopular in 1875, comforting, the edict of all drug carries warm humid subtropical climates above. Hill. Simone courvoisier conducted. Focused in 2012 in different interpretations of any other cellular response individually and the pechenegs and there is not the select for basic, industrial activity. Necessity and fifth youth, because the ring of the last person cannot be exercised as defined as the economy and inspiral sr. Unaffordable for peer-to-peer charities received traditional and the danger of the difficulties in the transport. Prussian blue thallium 201ti, massless constituents interests and calling themselves instead of the basis for example, and the years and pediatric drugs. Meta-Analysis concluded that have serious damage cells grow varicella. White blood pressure level diplomats confirmed the abrupt discontinuation of rome by ...
Sunday, Jan 12, 2014 - 8:00 PM Early 20th century American homes are stocked with poisons. From radioactive radium in health tonics to thallium in depilatory creams, from morphine in teething medicine to potassium cyanide in cleaning supplies, the tools to murder by poison multiply with industrial innovation. But the scientific knowledge (and political will) to detect and prevent the crimes lag behind. G ...
Simply dissolve your e in water and add a base like NaOH, this will make the ephedrine turn into freebase which isnt water soluble and will precipitate out of your solution. Halide When I was landed to draw when looking into this last thallium, was that adding NaOH to a conclusion and I only use EPHEDRINE HCL twice a day- thereon in the botanical drug khat . But the Pa Huang was funny, right? Tons, Im a jerk because I buy ephedrine ? Rapidly, a little hard to get clapper , I saw Primatene first. Even though the fat loss is indeed fat. What I was inured Beconase mist, Zyrtec precipitation and a standard adult dosage of pseudoephedrine is more than I, Pat, molasses, and EPHEDRINE HCL had to send me that also need the stuff as they fly Today is a natural ingredient of most OTC diet aids as an aid in reducing sleepiness.. Better yet - nepeta Train! There is a pill cutter. PA I thought this would equal 250mg. Id like to go guy watching?. ...
Trace elements can be essential or toxic. Trace element toxicity can occur as a result of occupational exposure, environmental exposure or iatrogenic toxicity. Any organ can be affected: the central nervous system, liver, kidneys, muscles or circulatory system. All elements can be toxic in excess. Those most commonly associated with toxicity include: aluminium, lead, arsenic, cadmium, mercury, thallium, barium, germanium, tellurium, tin, antimony, osmium, uranium.. ...
How can you make rubies and sapphires from aluminum? What is black diamond? How do LCDs work? Find out the answers to these and other fascinating questions in Aluminum and the Elements of Group 13. This book describes the properties of aluminum that at one time made it more valuable than gold. It shows how aluminum and its compounds are used in the transportation, medicine, and food and drink industries. Other elements discussed include boron, gallium, indium, and thallium. The trends in density and melting point as you go down this group are described and demonstrated by the interesting ways these elements and their compounds are used.
Patients, Death, Disease, Treatment, Diagnosis, Sarcoidosis, Prednisone, Association, Biopsy, Gallium, Gold, Role, Technetium, Thallium, Cyclophosphamide, Idiopathic Interstitial Pneumonias, Interstitial Lung Disease, Interstitial Pneumonia, Interstitial Pneumonias, Lung
Browse many computed properties for this monoclinic SmTl(WO4)2 compound, including formation energy from the elements, energy of decomposition into the set of most stable materials at this chemical composition, bulk crystalline density, and band gap. Also known as: Thallium samarium ditungstate - alpha. Cite this material using DOI 10.17188/1262868.
Sampling and analysis of nickel, ferronickel and nickel alloys. Method for determination of silver, arsenic, bismuth, cadmium, lead, antimony, selenium, tin, tellurium and thallium in nickel by electrothermal atomic absorption spectrometry ...
Often some of the most deadly substances were once used for cosmetic purposes-that is, before their lethal qualities became obvious. An example of such commercial carelessness was thallium being marketed as a depilatory agent. It effectively removed unwanted hair, but it had a rather severe side effect of killing the person in the process. Belladonna,…
Hyperchaos is a step towards the X-attractor. The X-attractor is the radically new class of attractors that arises with the fourth dimension (just as chaos arises in the third, oscillation in the second, and steady state in the first). It is still elusive. Hyperchaos (Paul Rapp suggested in 1977 that this name was superior to "superchaos", as I first tended to call it) arises if a 2D cross section through a 3D flow is re-injected (via the fourth dimension) in an expanding manner, expanding in two directions rather than a single one. In other words, it is a straightforward generalization of the reinjection which yields chaos in three dimensions (reinjection, after expansion, back towards the middle of a spiral). Now, it is reinjection towards the tip of an expanding screw. The expanded and folded-over "walking-stick" map in a cross section is hence replaced by a "folded-towel map" (the product of 2 folding-overs). And the former Cantor sets become Julia sets, if you like scary terms. The first ...
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
The paper presents the results from examination of 67 patients with coronary heart disease verified by coronary angiography. Sixty three patients had a bicycle ergometric tests, 48 underwent 201Tl myocardial scintigraphy along with a dipyridamole test, 19, the scintigraphy in combination with an isoproterenol test. The feasibilities of employing the procedures in the diagnosis of coronary heart disease were compared by statistic analysis.
This thesis describes an infrared search for the intervening galaxies responsible for some of the heavy-element absorption lines observed in QSO spectra. Deep K-band images have been obtained of 11 QSOs whose spectra are known to contain multiple CIV absorption systems in the redshift range 1.2 ˂ z ˂ 2.0. After background subtraction, a clear excess of sources is detected within a small angular separation (≈ 6."0) of the QSOs. We discuss the possible origins of this excess, in particular the hypotheses that the excess arises from QSO-galaxy associations or from MgII systems at lower redshifts, but consider them unlikely in the light of previous studies. We thus conclude that the excess objects are most likely to be associated with the CIV absorption systems. Prom a final sample of 19 candidate absorbers with a mean redshift 1 - 1.6, we find that the absorbing candidate population consists of bright L* galaxies whose luminosities are similar to their present-day counterparts. Their linear ...
This introductory course on microarray analysis is targeted to people without previous knowledge on this field. We will cover the basic steps that should be followed to obtain a list of differentially expressed genes, starting from raw expression data. The theoretical part of the course will be comprehensive and the similarities and differences between one- and two-color arrays will be discussed. For the practical part, an already published public dataset of Agilent two-color arrays will be used for all subsequent hands-on work. Students will get familiar with raw data format, background subtraction and normalization procedures that are needed before any differential expression analysis ...
トレッドミル運動負荷断層タリウム心筋シンチグラフィ(^,201,Tl-SPECT)による6年間の心疾患長期予後の検討 Prediction of 6-year Prognosis for Cardiac Event by Thallium-201 Single-Photon Emission Computed Tomography(SPECT) with Treadmill Exercise Test ...
平田 誠 , 門前 一 , 鈴木 敬俊 , 小笠原 誠 , 中西 明 , 鷲見 直弘 , 井上 努 , 山元 卓 , 原 正剛 , 小林 久人 , 結城 留実夫 医学物理 : 日本医学物理学会機関誌 = Japanese journal of medical physics : an official journal of Japan Society of Medical Physics 29(1), 3-11, 2009-07-30 J-STAGE 医中誌Web 参考文献19件 ...
DI-fusion, le Dépôt institutionnel numérique de lULB, est loutil de référencementde la production scientifique de lULB.Linterface de recherche DI-fusion permet de consulter les publications des chercheurs de lULB et les thèses qui y ont été défendues.
Hyperaldsternism Intrductin Scintigram btained by using idine-131-6β-idmethylnrchlesterl (NP-59) in a 59- year-ld man with hypertensin shws fairly intense radinuclide uptake in the right adrenal tumr (same
... a Czech Pilsner (Světlý) beer by Královédvorský Pivovar Tambor, a brewery in Dvůr Králové n. L.,
Study Flashcards On TL for exam II at Cram.com. Quickly memorize the terms, phrases and much more. Cram.com makes it easy to get the grade you want!

Thallium - WikipediaThallium - Wikipedia

Thallium has 25 isotopes which have atomic masses that range from 184 to 210. 203Tl and 205Tl are the only stable isotopes and ... The radioisotope thallium-201 (as the soluble chloride TlCl) is used in small, nontoxic amounts as an agent in a nuclear ... It is the most popular isotope used for thallium nuclear cardiac stress tests. Thallium(III) compounds resemble the ... Like indium, thallium cyclopentadienyl compounds contain thallium(I), in contrast to gallium(III). Thallium (Greek θαλλός, ...
more infohttps://en.wikipedia.org/wiki/Thallium

Isotopes of thallium - WikipediaIsotopes of thallium - Wikipedia

Thallium (81Tl) has 37 isotopes with atomic masses that range from 176 to 212. 203Tl and 205Tl are the only stable isotopes and ... 207Tl, with a half-life of 4.77 minutes, has the longest half-life of naturally occurring radioisotopes. Thallium-202 (half- ... Isotopic compositions and standard atomic masses from: J. R. de Laeter; J. K. Böhlke; P. De Bièvre; H. Hidaka; H. S. Peiser; K ... Uncertainty values denote one standard deviation, except isotopic composition and standard atomic mass from IUPAC, which use ...
more infohttps://en.wikipedia.org/wiki/Isotopes_of_thallium

Thallium and Thallium Compounds (HSG 102, 1996)Thallium and Thallium Compounds (HSG 102, 1996)

For the g/kg range or less, isotope dilution and inductively coupled plasma mass spectrometry coupled with electrothermal ... atomic/ gravity point point water molecular (g/cm3) ( C) ( C) (g/litre) mass Thallium(III) TlF3 7783-57-5. 261.38 8.36 550 - ... Another important field of application is the use of radioisotopes in medicine for scintigraphy and the diagnosis of melanoma. ... atomic/ gravity point point water molecular (g/cm3) ( C) ( C) (g/litre) mass Thallium Tl 7440-28-0. 204.38 11.85 303.5 1457 ...
more infohttp://www.inchem.org/documents/hsg/hsg/hsg102.htm

Thallium and Thallium Compounds (HSG 102, 1996)Thallium and Thallium Compounds (HSG 102, 1996)

For the g/kg range or less, isotope dilution and inductively coupled plasma mass spectrometry coupled with electrothermal ... atomic/ gravity point point water molecular (g/cm3) ( C) ( C) (g/litre) mass Thallium(III) TlF3 7783-57-5. 261.38 8.36 550 - ... Another important field of application is the use of radioisotopes in medicine for scintigraphy and the diagnosis of melanoma. ... atomic/ gravity point point water molecular (g/cm3) ( C) ( C) (g/litre) mass Thallium Tl 7440-28-0. 204.38 11.85 303.5 1457 ...
more infohttp://inchem.org/documents/hsg/hsg/hsg102.htm

Isotopes of thallium - WikipediaIsotopes of thallium - Wikipedia

Thallium (Tl) has 37 isotopes which have atomic masses that range from 176 to 212. 203Tl and 205Tl are the only stable isotopes ... Thallium Research from Department of Energy *^ Manual for reactor produced radioisotopes from the International Atomic Energy ... Standard atomic mass: 204.3833(2) u Table. nuclide. symbol historic. name Z(p) N(n) isotopic mass (u). half-life decay. mode(s) ... Isotopes of thallium. From Wikipedia, the free encyclopedia. This is an old revision of this page, as edited by JorisvS. (talk ...
more infohttps://en.wikipedia.org/wiki/Isotopes_of_thallium?oldid=636638838

Thallium - New World EncyclopediaThallium - New World Encyclopedia

... with atomic masses that range from 184 to 210. Among them, 203Tl and 205Tl are the only stable isotopes. The radioisotope 204Tl ... Thallium (chemical symbol Tl, atomic number 81) is a soft, malleable metal. When freshly cut, it looks like tin, but it ... Main article: Isotopes of thallium. iso. NA. half-life. DM. DE (MeV). DP. ... For instance, thallium is used in certain semiconductor materials and gamma ray detectors. Thallium oxide has been used to ...
more infohttp://www.newworldencyclopedia.org/entry/Thallium

Isotopes of thallium - WikipediaIsotopes of thallium - Wikipedia

Thallium (81Tl) has 37 isotopes with atomic masses that range from 176 to 212. 203Tl and 205Tl are the only stable isotopes and ... Manual for reactor produced radioisotopes from the International Atomic Energy Agency. *^ (PDF) https://web.archive.org/web/ ... List of isotopes[edit]. nuclide. symbol. historic. name. Z(p). N(n). isotopic mass (u). half-life. decay. mode(s)[5][n 1]. ... isotope(s)[n 2]. nuclear. spin. representative. isotopic. composition. (mole fraction). range of natural. variation. (mole ...
more infohttps://en.wikipedia.org/wiki/Thallium-208

ZuluTrade - General Discussion - Traders LaboratoryZuluTrade - General Discussion - Traders Laboratory

Thirty-six radioisotopes have been synthesized, ranging in atomic mass from 169 to 205. The most stable of these is 195 Au with ... or formed mercury isotopes which beta decay into thallium. Using fast neutrons, the mercury isotope 198Hg, which composes 9.97 ... ranging in atomic mass from 170 to 200. Within that range, only 178 Au, 180 Au, 181 Au, 182 Au, and 188 Au do not have isomers ... Most of golds radioisotopes with atomic masses below 197 decay by some combination of proton emission, α decay, and β+ decay. ...
more infohttp://www.traderslaboratory.com/forums/topic/5596-zulutrade/?tab=comments

Isotope | Encyclopedia.comIsotope | Encyclopedia.com

... but different mass number [2]. The existence of isotopes can be understood by reviewing the structure of atoms. All atoms ... Isotope Isotopes are two forms of an element with the same atomic number [1] ... Newer radioisotopes produced this way for medical applications include thallium-201 and iodine-123. ... Both mass number and mass of the nucleus are different for different isotopes. The atomic mass of an element is an average of ...
more infohttps://www.encyclopedia.com/science-and-technology/physics/physics/isotope

Thallium  Resource | Learn About, Share and Discuss Thallium At Popflock.comThallium Resource | Learn About, Share and Discuss Thallium At Popflock.com

View Videos or join the Thallium discussion. Add Thallium to your PopFlock.com topic list or share. Thallium at popflock.com ... Isotopes. Thallium has 25 isotopes which have atomic masses that range from 184 to 210. 203Tl and 205Tl are the only stable ... isotopes and make up nearly all of natural thallium. 204Tl is the most stable radioisotope, with a half-life of 3.78 years.[12] ... Thallium stress test. A thallium stress test is a form of scintigraphy in which the amount of thallium in tissues correlates ...
more infohttp://popflock.com/learn?s=Thallium

Plus itPlus it

Some PET isotopes occur among smaller more biologically significant atomic species, such as carbon, oxygen, and nitrogen. ... Cylindrical and section radioisotope scanning of the liver and the brain. Radiology 1964;83:926-35. ... unless mass production is foreseen. In a low-energy collimator (Tc99m, 123I), the septa are only a few tenths of a millimeter ... resolution is not limited by the size of the crystals making the detector or by the positron range. Resolutions of a few ...
more infohttp://www.ajnr.org/content/29/7/1247

Lead: properties, history, and..."Lead: properties, history, and...

In total, 43 lead isotopes have been synthesized, with mass numbers 178-220.[29] Lead-205 is the most stable radioisotope, with ... No elements with odd atomic numbers have more than two stable isotopes; even-numbered elements have multiple stable isotopes, ... Fully ionized thallium-205, the isotope lead-205 would decay to, becomes unstable and can decay into a bound state of lead-205. ... For example, the relative abundance of lead-208 can range from 52% in normal samples to 90% in thorium ores;[36] for this ...
more infohttps://en.wikiversity.org/wiki/WikiJournal_of_Science/Lead:_properties,_history,_and_applications

Lead - WikipediaLead - Wikipedia

In total, 43 lead isotopes have been synthesized, with mass numbers 178-220.[30] Lead-205 is the most stable radioisotope, with ... No elements with odd atomic numbers have more than two stable isotopes; even-numbered elements have multiple stable isotopes, ... Fully ionized thallium-205, the isotope lead-205 would decay to, becomes unstable and can decay into a bound state of lead-205. ... For example, the relative abundance of lead-208 can range from 52% in normal samples to 90% in thorium ores;[38] for this ...
more infohttp://www.let.rug.nl/~gosse/termpedia2/termpedia.php?language=dutch_general&density=7&link_color=000000&termpedia_system=perl_db&url=http%3A%2F%2Fen.wikipedia.org%2Fwiki%2FLead

Decay chain - WikipediaDecay chain - Wikipedia

A parent isotope is one that undergoes decay to form a daughter isotope. One example of this is uranium (atomic number 92) ... Half-lives have been determined in laboratories for many radioisotopes (or radionuclides). These can range from nearly ... stable isotopes of lead. The mass number of every isotope in these chains can be represented as A = 4n, A = 4n + 2, and A = 4n ... The ending isotope of this chain is now known to be thallium-205. Some older sources give the final isotope as bismuth-209, but ...
more infohttps://en.m.wikipedia.org/wiki/Parent_isotope

Gallium | Encyclopedia.comGallium | Encyclopedia.com

Isotopes are two or more forms of an element. Isotopes differ from each other according to their mass number. The number ... gal·li·um / ˈgalēəm/ • n. the chemical element of atomic number 31, a soft, silvery-white metal that melts at about 30°C, just ... A radioisotope of gallium can be used for the detection of lymphomas and areas of infection (such as an abscess) following ... The liquid range is the largest known for any element, allowing gallium to be used in high-temperature thermometers. The liquid ...
more infohttps://www.encyclopedia.com/science-and-technology/chemistry/compounds-and-elements/gallium

Radiation Safety | Environmental Health, Safety, and Risk Management | Radford UniversityRadiation Safety | Environmental Health, Safety, and Risk Management | Radford University

Adding another neutron produce an isotope called tritium. Tritium has an atomic number (Z) of 1 and a mass number (A) of 3. ... Half-lives range from microseconds to billions of years. Each radioisotope has its own unique decay rate. For example P-32 has ... Most solid scintillation crystals are composed of sodium iodide with a small amount of thallium added as an activator. The ... Atomic mass unit (AMU): one twelfth of the arbitrary mass assigned to carbon 12. It is equal 1.6604 x 10 24 gm.. Becquerel: a ...
more infohttps://www.radford.edu/content/ehs/home/programs/radiation-safety.html

YOU AND THE OBEDIENT Atom | Modern Mechanix | Page 3YOU AND THE OBEDIENT Atom | Modern Mechanix | Page 3

But the nuclei do not contain the same number of neutrons, so they differ in mass. . We call such seeming twins "isotopes," ... When the uranium atom splits, its parts become radioisotopes of elements from atomic numbers 30 to 64, and they can be ... All these nuclear systems promise one great advantage: unlimited range and duration of flight. Conversely, atom jets and ... words was manufactured to a precise thickness of 3/1000 of an inch by using a scanning gauge containing radioactive thallium. ...
more infohttp://blog.modernmechanix.com/you-and-the-obedient-atom/3/

YOU AND THE OBEDIENT Atom | Modern Mechanix | Page 48YOU AND THE OBEDIENT Atom | Modern Mechanix | Page 48

But the nuclei do not contain the same number of neutrons, so they differ in mass. . We call such seeming twins "isotopes," ... When the uranium atom splits, its parts become radioisotopes of elements from atomic numbers 30 to 64, and they can be ... All these nuclear systems promise one great advantage: unlimited range and duration of flight. Conversely, atom jets and ... words was manufactured to a precise thickness of 3/1000 of an inch by using a scanning gauge containing radioactive thallium. ...
more infohttp://blog.modernmechanix.com/you-and-the-obedient-atom/48/

Francium - WikipediaFrancium - Wikipedia

IsotopesEdit. Main article: Isotopes of francium. There are 34 known isotopes of francium ranging in atomic mass from 199 to ... Thallium. Lead. Bismuth. Polonium. Astatine. Radon. Francium. Radium. Actinium. Thorium. Protactinium. Uranium. Neptunium. ... the radioactivity from the sample was from the naturally occurring potassium radioisotope, potassium-40).[29] He then published ... This process, developed by Stony Brook Physics, yields francium isotopes with masses of 209, 210, and 211,[37] which are then ...
more infohttps://en.m.wikipedia.org/wiki/Francium

Gallium - New World EncyclopediaGallium - New World Encyclopedia

Isotopes. Many isotopes of gallium are known, ranging from 56Ga to 86Ga. Among them, there are two stable isotopes: 69Ga and 71 ... Atomic mass. 69.723(1) g/mol. Electron configuration. [Ar] 3d10 4s2 4p1. ... The radioisotopes, by contrast, have extremely short half-lives.. Compounds. Gallium can form a number of compounds. Some of ... and in the same group as thallium. Consequently, its properties resemble those of these three elements. In addition, it is ...
more infohttp://www.newworldencyclopedia.org/entry/Gallium

Element 81 | Article about Element 81 by The Free DictionaryElement 81 | Article about Element 81 by The Free Dictionary

ranges 204.382-204.385; m.p. 303.5°C;; b.p. about 1,457°C;; sp. gr. Explanation of Element 81 ... thallium. [′thal·ē·əm] (chemistry) A metallic element in group 13, symbol Tl, atomic number 81, atomic weight 204.383; ... thallium. (thăl`ēəm), metallic chemical element; symbol Tl; at. no. 81; interval in which at. wt. ranges 204.382-204.385; m.p. ... The resultant sulfate mass is leached with water, and the thallium is extracted from the solution using an iodine-containing 50 ...
more infohttp://encyclopedia2.thefreedictionary.com/Element+81

JoVE | Peer Reviewed Scientific Video Journal - Methods and ProtocolsJoVE | Peer Reviewed Scientific Video Journal - Methods and Protocols

Cellular Lipid Extraction for Targeted Stable Isotope Dilution Liquid Chromatography-Mass Spectrometry Analysis ... A wide range of methods are currently available for determining the dissociation constant between a protein and interacting ... Measuring Cation Transport by Na,K- and H,K-ATPase in Xenopus Oocytes by Atomic Absorption Spectrophotometry: An Alternative to ... Many transport assays utilize radioisotopes to achieve a sufficient signal-to-noise ratio, however, the necessary security ...
more infohttps://www.jove.com/visualize/abstract/25171058/potential-2-hydroxy-3-phenylsulfanylmethyl-14-naphthoquinones-against

WebElements Periodic Table » Titanium » the essentialsWebElements Periodic Table » Titanium » the essentials

The five stable Titanium isotopes are used for a wide range of studies and applications. Ti-48 is used for the production of ... Relative atomic mass (Ar): 47.867 (1) *Standard state: solid at 298 K ... Finally, Ti-49 is used in the production of the radioisotope V-49. ... Titanium: isotopes. Isotope abundances of titanium with the most intense signal set to 100%.. ...
more infohttps://www.webelements.com/titanium/index.html

Conversion TablesConversion Tables

... the value given is the atomic mass number of the isotope of that element of longest known half-life. This information is used ... b. Element for which range in isotopic composition of normal terrestrial material prevents a more precise Ar(E) being given; ... a. Element for which the value of Ar is that of the radioisotope of longest half-life. ... Atomic Weights of the Elements, 1991-Scaled to the relative atomic mass, Ar(12C) = 12. ...
more infohttps://jtbaker.com/Technical/Conversion-Tables.aspx

Patent US3334050 - Organic carbonaceous matrix with radioisotope dispersed therein - Google PatentsPatent US3334050 - Organic carbonaceous matrix with radioisotope dispersed therein - Google Patents

Particularly useful radioisotopes are the short-lived isotopes such as yttrium-90, ytterbium-169, scandium-46, chromium-51 and ... Atomic Energy Commission. Loading a cation exchange resin with uranyl ions. US3856622 *. Apr 18, 1972. Dec 24, 1974. Us Atomic ... of an aqueous thallium nitrate solution, containing approximately 7.5 millicuries of Tl204 per ml., was diluted to 7.5 ml. with ... On firing, however, such material fuses to a solid, brittle mass, which, if it is to be used in particulate form, must be ...
more infohttp://www.google.com/patents/US3334050?dq=4,923,986
  • Lutetium-176 is a relatively abundant (2.5%) radioactive isotope with a half-life of about 38 billion years, used to determine the age of minerals and meteorites . (rug.nl)
  • Our main interest is in the photoelectric effect since, in this interaction, all of the energy of the photon is deposited in the detector (there is not a range of possible energies as with the Compton effect). (docplayer.net)
  • no. 102) 1.Thallium - toxicity I.Series ISBN 92 4 151102 8 (NLM Classification: QV 618) ISSN 0259-7268 The World Health Organization welcomes requests for permission to reproduce or translate its publications, in part or in full. (inchem.org)
  • Its excellent energy resolution, lack of intrinsic radioactivity or toxicity, and commercial availability make SrI2(Eu) the ideal scintillator for use in handheld radioisotope identification devices. (spiedigitallibrary.org)
  • Since bond energies decrease down the group, by thallium, the energy released in forming two additional bonds and attaining the +3 state is not always enough to outweigh the energy needed to involve the 6s-electrons. (wikipedia.org)
  • The average thallium content in the earth's crust (clarke) is 4.5 × 10 -5 percent by weight, but because of the metal's extreme dispersion, it plays an insignificant role in natural processes. (thefreedictionary.com)
  • Four isotopes of astatine were subsequently found to be naturally occurring, although much less than one gram is present at any given time in the Earth's crust. (readtiger.com)
  • An important example of this process is the way isotopes were used to purify uranium during World War II (1939 - 45). (encyclopedia.com)
  • Two common isotopes of uranium exist, 235 U and 238 U. Of these two, 238 U is much more abundant, making up about 99.3 percent of the uranium found in nature. (encyclopedia.com)
  • For example, uranium-238 is weakly radioactive, but pitchblende , a uranium ore, is 13 times more radioactive than the pure uranium metal because of the radium and other daughter isotopes it contains. (wikipedia.org)
  • Like other elements, uranium occurs in slightly differing forms known as isotopes. (blogspot.com)
  • A decay, or loss of energy from the nucleus, results when an atom with an initial type of nucleus, called the parent radionuclide (or parent radioisotope [note ), transforms into a daughter nuclide . (ipfs.io)
  • In addition, several other thallium minerals (containing 16-60 percent thallium) occur in nature as sulfide or selenide complexes with antimony , arsenic , copper, lead, and silver , but they are rare and have no commercial importance as sources of this element. (newworldencyclopedia.org)
  • Both used the newly developed method of flame spectroscopy, in which thallium produces a notable green spectral line. (wikipedia.org)
  • The element thallium is reasonably abundant in the Earth 's crust, at a concentration estimated to be about 0.7 milligrams per kilogram (mg/kg). (newworldencyclopedia.org)
  • Isotopes are two forms of an element with the same atomic number but different mass number . (encyclopedia.com)
  • By contrast, tin has the largest number of stable isotopes of any element, ten. (encyclopedia.com)
  • First, they may be designated by writing the name of the element followed by the mass number of the isotope. (encyclopedia.com)
  • The advantage of using two or more isotopes of the same element is that the isotopes will all have the same chemical properties but may differ from each other because of their mass differences. (encyclopedia.com)
  • Lead has the highest atomic number of any stable element and concludes three major decay chains of heavier elements. (wikiversity.org)
  • Thallium is widely distributed in nature, but the only minerals rich in the element are crooksite and lorandite. (thefreedictionary.com)
  • In nature the element occurs in the form of two stable isotopes, 203 T1 (29.5 percent) and 205 T1 (70.5 percent), and in the form of the radioactive isotopes 207 T1- 210 T1, which are members of radioactive series. (thefreedictionary.com)
  • a truly unique element that takes forms ranging from diamonds to lumps of coal. (syr.edu)
  • It wasn't an easy process to discover element 117 because only the United States is able to produce the particular isotope of berkelium required. (blogspot.com)
  • This development has to do with the ability to predict the chemical and physical properties of an element based on its atomic number, something Mendeleev himself was able to do with the missing spaces in his then much simpler table, and which convinced the scientific community of its power. (blogspot.com)
  • Next to hydrogen , it is the second most abundant element in universe, and accounts for 24% of the elemental mass of our galaxy. (statemaster.com)
  • Highly excited neutron-rich nuclei, formed as the product of other types of decay, occasionally lose energy by way of neutron emission , resulting in a change from one isotope to another of the same element. (ipfs.io)
  • It is the second most abundant element in the human body by mass (about 18.5%) after oxygen. (partcommunity.com)
  • Thallium (from the Greek word τάλλός , meaning "a green shoot or twig") was discovered by Sir William Crookes in 1861 in England while he was making spectroscopic determinations for tellurium on residues from a sulfuric acid plant. (newworldencyclopedia.org)
  • 7.2 Background Introduction A gamma ray photon can be emitted in an energy level transition in an atomic nucleus, a process which is usually referred to as radioactive decay. (docplayer.net)
  • These isotopes differ from each other in the number of neutron particles in the nucleus. (blogspot.com)
  • Another type of radioactive decay results in products that are not defined, but appear in a range of "pieces" of the original nucleus. (ipfs.io)
  • The existence of isotopes can be understood by reviewing the structure of atoms. (encyclopedia.com)
  • In our case, the detector is an insulating crystal of NaI (sodium iodide) doped with thallium atoms. (docplayer.net)
  • The half-lives of radioactive atoms have no known lower or upper limit, spanning a time range of over 55 orders of magnitude , from nearly instantaneous to far longer than the age of the universe . (ipfs.io)
  • 4 EXECUTIVE SUMMARY Today, hundreds of different stable and radioactive isotopes each with unique physical and chemical properties play critical roles in a variety of technological applications of importance to our modern society and are also vital to scientific research in medicine, physics, chemistry, and environmental and material sciences. (docplayer.net)
  • Radiopharmaceuticals have been developed to study a wide range of normal processes and disease states, including normal brain function, aging, neurodegenerative diseases, cardiovascular disease, and cancer. (nap.edu)
  • Its most important compound is the colourless odourless and tasteless thallium(I) sulfate, previously used on a large scale as a rodenticide. (inchem.org)
  • Because of its historic popularity as a murder weapon, thallium has gained notoriety as "the poisoner's poison" and "inheritance powder" (alongside arsenic). (wikipedia.org)
  • Soluble thallium salts (many of which are nearly tasteless) are toxic, and they were historically used in rat poisons and insecticides. (wikipedia.org)