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.
A metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85. It is an essential constituent of HEMOGLOBINS; CYTOCHROMES; and IRON-BINDING PROTEINS. It plays a role in cellular redox reactions and in the transport of OXYGEN.
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)
Organic chemicals that form two or more coordination links with an iron ion. Once coordination has occurred, the complex formed is called a chelate. The iron-binding porphyrin group of hemoglobin is an example of a metal chelate found in biological systems.
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.
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)
An excessive accumulation of iron in the body due to a greater than normal absorption of iron from the gastrointestinal tract or from parenteral injection. This may arise from idiopathic hemochromatosis, excessive iron intake, chronic alcoholism, certain types of refractory anemia, or transfusional hemosiderosis. (From Churchill's Illustrated Medical Dictionary, 1989)
Unstable isotopes of strontium that decay or disintegrate spontaneously emitting radiation. Sr 80-83, 85, and 89-95 are radioactive strontium isotopes.
Iron or iron compounds used in foods or as food. Dietary iron is important in oxygen transport and the synthesis of the iron-porphyrin proteins hemoglobin, myoglobin, cytochromes, and cytochrome oxidase. Insufficient amounts of dietary iron can lead to iron-deficiency anemia.
Unstable isotopes of iodine that decay or disintegrate emitting radiation. I atoms with atomic weights 117-139, except I 127, are radioactive iodine isotopes.
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.
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.
Unstable isotopes of sodium that decay or disintegrate emitting radiation. Na atoms with atomic weights 20-22 and 24-26 are radioactive sodium isotopes.
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)
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.
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.
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.
Unstable isotopes of yttrium that decay or disintegrate emitting radiation. Y atoms with atomic weights 82-88 and 90-96 are radioactive yttrium isotopes.
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.
Unstable isotopes of carbon that decay or disintegrate emitting radiation. C atoms with atomic weights 10, 11, and 14-16 are radioactive carbon isotopes.
Iron-containing proteins that are widely distributed in animals, plants, and microorganisms. Their major function is to store IRON in a nontoxic bioavailable form. Each ferritin molecule consists of ferric iron in a hollow protein shell (APOFERRITINS) made of 24 subunits of various sequences depending on the species and tissue types.
Organic and inorganic compounds that contain iron as an integral part of the molecule.
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.
Unstable isotopes of phosphorus that decay or disintegrate emitting radiation. P atoms with atomic weights 28-34 except 31 are radioactive phosphorus isotopes.
High energy POSITRONS or ELECTRONS ejected from a disintegrating atomic nucleus.
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.
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.
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.
A gamma-emitting radionuclide imaging agent used for the diagnosis of diseases in many tissues, particularly in the gastrointestinal system, liver, and spleen.
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.
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. A metal element of atomic number 72 and atomic weight 178.49, symbol Hf. (From Dorland, 28th ed)
Unstable isotopes of gold that decay or disintegrate emitting radiation. Au 185-196, 198-201, and 203 are radioactive gold isotopes.
Inorganic or organic compounds containing trivalent iron.
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.
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.
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.
Anemia characterized by decreased or absent iron stores, low serum iron concentration, low transferrin saturation, and low hemoglobin concentration or hematocrit value. The erythrocytes are hypochromic and microcytic and the iron binding capacity is increased.
Any diagnostic evaluation using radioactive (unstable) isotopes. This diagnosis includes many nuclear medicine procedures as well as radioimmunoassay tests.
Unstable isotopes of sulfur that decay or disintegrate spontaneously emitting radiation. S 29-31, 35, 37, and 38 are radioactive sulfur isotopes.
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.
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.
An iron-binding beta1-globulin that is synthesized in the LIVER and secreted into the blood. It plays a central role in the transport of IRON throughout the circulation. A variety of transferrin isoforms exist in humans, including some that are considered markers for specific disease states.
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).
Lutetium. An element of the rare earth family of metals. It has the atomic symbol Lu, atomic number 71, and atomic weight 175.
Rhenium. A metal, atomic number 75, atomic weight 186.2, symbol Re. (Dorland, 28th ed)
A multifunctional iron-sulfur protein that is both an iron regulatory protein and cytoplasmic form of aconitate hydratase. It binds to iron regulatory elements found on mRNAs involved in iron metabolism and regulates their translation. Its RNA binding ability and its aconitate hydrolase activity are dependent upon availability of IRON.
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.
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)
Inorganic or organic compounds that contain divalent iron.
Pollutants, present in soil, which exhibit radioactivity.
Disorders in the processing of iron in the body: its absorption, transport, storage, and utilization. (From Mosby's Medical, Nursing, & Allied Health Dictionary, 4th ed)
Detection and counting of scintillations produced in a fluorescent material by ionizing radiation.
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.
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.
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.
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)
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)
A multifunctional iron-sulfur protein that is both an iron regulatory protein and cytoplasmic form of aconitate hydratase. It binds to iron regulatory elements found on mRNAs involved in iron metabolism and regulates their translation. Its rate of degradation is increased in the presence of IRON.
Uptake of substances through the lining of the INTESTINES.
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.
Techniques used to determine the age of materials, based on the content and half-lives of the RADIOACTIVE ISOTOPES they contain.
Natural product isolated from Streptomyces pilosus. It forms iron complexes and is used as a chelating agent, particularly in the mesylate form.
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.
An iron chelating agent with properties like EDETIC ACID. DTPA has also been used as a chelator for other metals, such as plutonium.
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.
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.
Atomic species differing in mass number but having the same atomic number. (Grant & Hackh's Chemical Dictionary, 5th ed)
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.
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.
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.
Determination of the energy distribution of gamma rays emitted by nuclei. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A type of high-energy radiotherapy using a beam of gamma-radiation produced by a radioisotope source encapsulated within a teletherapy unit.
A series of steps taken in order to conduct research.
A specialty field of radiology concerned with diagnostic, therapeutic, and investigative use of radioactive compounds in a pharmaceutical form.
Low-molecular-weight compounds produced by microorganisms that aid in the transport and sequestration of ferric iron. (The Encyclopedia of Molecular Biology, 1994)
The physical or physiological processes by which substances, tissue, cells, etc. take up or take in other substances or energy.
A technetium imaging agent used in renal scintigraphy, computed tomography, lung ventilation imaging, gastrointestinal scintigraphy, and many other procedures which employ radionuclide imaging agents.
Membrane glycoproteins found in high concentrations on iron-utilizing cells. They specifically bind iron-bearing transferrin, are endocytosed with its ligand and then returned to the cell surface where transferrin without its iron is released.
Forms of hepcidin, a cationic amphipathic peptide synthesized in the liver as a prepropeptide which is first processed into prohepcidin and then into the biologically active hepcidin forms, including in human the 20-, 22-, and 25-amino acid residue peptide forms. Hepcidin acts as a homeostatic regulators of iron metabolism and also possesses antimicrobial activity.
A complex of ferric oxyhydroxide with dextrans of 5000 to 7000 daltons in a viscous solution containing 50 mg/ml of iron. It is supplied as a parenteral preparation and is used as a hematinic. (Goodman and Gilman's The Pharmacological Basis of Therapeutics, 8th ed, p1292)
Anemia characterized by a decrease in the ratio of the weight of hemoglobin to the volume of the erythrocyte, i.e., the mean corpuscular hemoglobin concentration is less than normal. The individual cells contain less hemoglobin than they could have under optimal conditions. Hypochromic anemia may be caused by iron deficiency from a low iron intake, diminished iron absorption, or excessive iron loss. It can also be caused by infections or other diseases, therapeutic drugs, lead poisoning, and other conditions. (Stedman, 25th ed; from Miale, Laboratory Medicine: Hematology, 6th ed, p393)
A disorder of iron metabolism characterized by a triad of HEMOSIDEROSIS; LIVER CIRRHOSIS; and DIABETES MELLITUS. It is caused by massive iron deposits in parenchymal cells that may develop after a prolonged increase of iron absorption. (Jablonski's Dictionary of Syndromes & Eponymic Diseases, 2d ed)
The measurement of radiation by photography, as in x-ray film and film badge, by Geiger-Mueller tube, and by SCINTILLATION COUNTING.

The effect of chelating agents on iron mobilization in Chang cell cultures. (1/266)

The investigation of chelating agents with potential therapeutic value in patients with transfusional iron overload has been facilitated by the use of Chang cell cultures. These cells have been incubated with [59Fe]transferrin for 22 hr, following which most of the intracellular radioiron is found in the cytosol, distributed between a ferritin and a nonferritin form. Iron release from the cells depends on transferrin saturation in the medium, but when transferrin is 100% saturated, which normally does not allow iron release, desferrioxamine, 2,3-dihydroxybenzoic acid, rhodotorulic acid, cholythydroxamic acid, and tropolone all promote the mobilization of ferritin iron and its release from cells. They are effective to an approximately equal degree. The incubation of [59Fe]transferrin with tropolone in vitro at a molar ratio of 1:500 results in the transfer of most of the labeled iron to the chelator, reflecting the exceptionally high binding constant of this compound. How far these phenomena relate to therapeutic potentially remains to be seen.  (+info)

Chemical and immunochemical measurement of total iron-binding capacity compared. (2/266)

Radiometric, colorimetric, and two immunochemical methods for measuring total iron-binding capacity are compared. We evaluated the procedures on the basis of precision, applicability to a pediatric population, and accuracy as assessed by analytical recovery of purified transferrin. The immunoephelometric assay for transferrin provides significant advantages over the other methods examined.  (+info)

Quantitation of Friend spleen focus-forming virus by a nine-day 59Fe assay. (3/266)

A previously described 3-day 59Fe assay for quantitation of Friend spleen focus-forming virus has been modified to produce a 200-fold more sensitive 9-day 59Fe assay. A characterization of this assay is reported here. Male BALB/c mice received intravenous injections of appropriately diluted Friend polycythemia virus (FVP); control mice received virus diluent. All mice were allowed food and water ad libitum for 6 days, and on day 6 after virus injection were fasted by removal of food but not water. On day 3 of the fast (the 9th day after virus injection) each mouse received an intraperitoneal injection of 1 muCi of 59Fe. Six hours later the mice were sacrificed and the splenic radioactivity was determined. The percent splenic incorporation of 59Fe was directly related to the logarithm of spleen focus-forming units (SFFU) of FVP injected in a range of approximately 25 to 1,000 SFFU. Using a standard FVP preparation in a dose range of 25 to 1,000 SFFU, it was possible to determine the SFFU titers of unknown samples by extrapolation of the percent splenic 59Fe incorporation to the logarithm of SFFU. SFFU titers obtained by the 9-day 59Fe assay were similar to those obtained by the enumerative-response assay. Advantages of the 9-day 59Fe assay over the enumerative-response assay include a 50-fold greater virus dose range, an easier and a more objective counting procedure, and a reduced coefficient of variation.  (+info)

The hereditary hemochromatosis protein, HFE, specifically regulates transferrin-mediated iron uptake in HeLa cells. (4/266)

HFE is the protein product of the gene mutated in the autosomal recessive disease hereditary hemochromatosis (Feder, J. N., Gnirke, A., Thomas, W., Tsuchihashi, Z., Ruddy, D. A., Basava, A., Dormishian, F., Domingo, R. J., Ellis, M. C., Fullan, A., Hinton, L. M., Jones, N. L., Kimmel, B. E., Kronmal, G. S., Lauer, P., Lee, V. K., Loeb, D. B., Mapa, F. A., McClelland, E., Meyer, N. C., Mintier, G. A., Moeller, N., Moore, T., Morikang, E., Prasss, C. E., Quintana, L., Starnes, S. M., Schatzman, R. C., Brunke, K. J., Drayna, D. T., Risch, N. J., Bacon, B. R., and Wolff, R. R. (1996) Nat. Genet. 13, 399-408). At the cell surface, HFE complexes with transferrin receptor (TfR), increasing the dissociation constant of transferrin (Tf) for its receptor 10-fold (Gross, C. N., Irrinki, A., Feder, J. N., and Enns, C. A. (1998) J. Biol. Chem. 273, 22068-22074; Feder, J. N., Penny, D. M., Irrinki, A., Lee, V. K., Lebron, J. A., Watson, N. , Tsuchihashi, Z., Sigal, E., Bjorkman, P. J., and Schatzman, R. C. (1998) Proc. Natl. Acad. Sci. U S A 95, 1472-1477). HFE does not remain at the cell surface, but traffics with TfR to Tf-positive internal compartments (Gross et al., 1998). Using a HeLa cell line in which the expression of HFE is controlled by tetracycline, we show that the expression of HFE reduces 55Fe uptake from Tf by 33% but does not affect the endocytic or exocytic rates of TfR cycling. Therefore, HFE appears to reduce cellular acquisition of iron from Tf within endocytic compartments. HFE specifically reduces iron uptake from Tf, as non-Tf-mediated iron uptake from Fe-nitrilotriacetic acid is not altered. These results explain the decreased ferritin levels seen in our HeLa cell system and demonstrate the specific control of HFE over the Tf-mediated pathway of iron uptake. These results also have implications for the understanding of cellular iron homeostasis in organs such as the liver, pancreas, heart, and spleen that are iron loaded in hereditary hemochromatotic individuals lacking functional HFE.  (+info)

Iron regulatory protein as an endogenous sensor of iron in rat intestinal mucosa. Possible implications for the regulation of iron absorption. (5/266)

Duodenal enterocytes adjust intestinal iron absorption to the body's state of iron repletion. Here we tested how iron supply from the blood modulates the RNA-binding activity of iron regulatory proteins (IRP-1 and IRP-2) in immature duodenal rat enterocytes, and whether the modulation is compatible with the hypothesis that IRPs, in turn, may regulate the expression of iron transport proteins in maturating enterocytes during migration to the villus tips. Tissue uptake of parenterally applied 59Fe along the duodenal crypt-villus axis was compared to local IRP-1 and IRP-2 activity and to duodenal 59Fe transport capacity 12 h, 48 h, and 72 h after intravenous iron administration to iron-deficient rats. IRP-1 and IRP-2 activity was significantly increased in iron-deficiency. 59Fe administrated from the blood side was almost exclusively taken up by crypt enterocytes. Accordingly, the activity of IRP-1 decreased at this site 12 h after parenteral iron administration, but remained high at the villus tips. After 48 h the bulk of 59Fe containing enterocytes had migrated to the villus tips. Correspondingly, IRP-1 activity was decreased at duodenal villus tips after 48 h. IRP-2 activity also tended to decrease, though the change was statistically not significant. IRP-2 activity remained significantly higher at duodenal villus tips than in crypts, even after 72 h. Intestinal iron absorption capacity decreased with the same delay as IRP-1 activity after intravenous iron administration. In the ileum 59Fe uptake from the blood and IRP activity showed no significant difference between crypt and villus region. Luminal administration of iron decreased duodenal IRP-1 and IRP-2 activity at tips and crypts within 2 h. Thus, recently absorbed iron becomes available to cytosolic IRP during its passage through the enterocyte. Our results are compatible with a role of IRPs in gearing the expression of intestinal iron transporters in the duodenal brushborder to the body's state of iron repletion.  (+info)

Transferrin stimulates iron absorption, exocytosis, and secretion in cultured intestinal cells. (6/266)

The cellular mechanism by which basolateral transferrin (Tf) produces an increase in apical-to-basolateral Fe flux in Caco-2 cells was analyzed. After a pulse of 59Fe from the apical medium, three types of basolateral 59Fe efflux were found: a 59Fe efflux that was independent of the presence of Tf in the basolateral medium, a 59Fe efflux in which 59Fe left the cell bound to Tf, and a Tf-dependent 59Fe efflux in which 59Fe came off the cell not bound to Tf. Furthermore, addition of Tf to the basolateral medium doubled the exocytosis rate of Tf and increased the secretion of apolipoprotein A, a basolateral secretion marker. Both apotransferrin and Fe-containing Tf produced similar increases in 59Fe efflux, Tf exocytosis, and apolipoprotein A secretion. The Ca2+ channel inhibitor SKF-96365 inhibited both the Tf-mediated increase in transepithelial Fe transport and the secretion of apolipoprotein A. Thus the activation of transepithelial Fe transport by Tf seems to be mediated by Ca2+ entry into the cells.  (+info)

3'-Azido-3'-deoxythymidine reduces the rate of transferrin receptor endocytosis in K562 cells. (7/266)

K562 cells, exposed for at least 24 h to 5 microM 3'-azido-3'-deoxythymidine (AZT), gave rise to an overall increase in the number of cell surface transferrin binding receptors (18-20%). This effect was ascertained either with binding experiments by using 125I-transferrin and with immunoprecipitation by using a specific monoclonal antibody against the transferrin receptor. At higher AZT concentrations (20 and 40 microM), a further increase was found, that is, up to 23% by binding experiments and up to 110% by immunoprecipitation. However, Scatchard analysis of the binding data indicated that although the number of cell surface transferrin receptors increased, the affinity of transferrin for its receptor did not change (Ka=4.0x108 M). Surprisingly, immunoprecipitation of total receptor molecules showed that the synthesis of receptor was not enhanced by the drug treatment. The effect of AZT on transferrin internalization and receptor recycling was also investigated. In this case, data indicated that the increase in the number of receptors at the cell surface was probably due to a slowing down of endocytosis rate rather than to an increased recycling rate of the receptor to cell surface. In fact, the time during which half the saturated amount of transferrin had been endocytosed (t1/2) was 2.15 min for control cells and 3.41, 3.04, and 3.74 min for 5, 20, and 40 microM AZT-treated cells, respectively. Conversely, recycling experiments did not show any significant differences between control and treated cells. A likely mechanism through which AZT could interfere with the transferrin receptor trafficking, together with the relevance of our findings, is extensively discussed.  (+info)

Increased expression of transferrin receptor on membrane of erythroblasts in strenuously exercised rats. (8/266)

This study investigated the effects of strenuous exercise on transferrin (Tf)-receptor (TfR) expression and Tf-bound iron (Tf-Fe) uptake in erythroblasts of rat bone marrow. Female Sprague-Dawley rats were randomly assigned to either an exercise or sedentary group. Animals in the exercise group swam 2 h/day for 3 mo in a glass swimming basin. Both groups received the same amount of handling. At the end of 3 mo, the bone marrow erythroblasts were freshly isolated for Tf-binding assay and determination of Tf-Fe uptake in vitro. Tissue nonheme iron and hematological iron indexes were measured. The number of Tf-binding sites found in erythroblasts was approximately 674,500 +/- 132,766 and 1,270,011 +/- 235,321 molecules/cell in control and exercised rats, respectively (P < 0. 05). Total Fe and Tf uptake by the cells was also significantly increased in the exercised rats after 30 min of incubation. Rates of cellular Fe accumulation were 5.68 and 2.58 fmol. 10(6) cells(-1). min(-1) in the exercised and control rats, respectively (P < 0.05). Tf recycling time and TfR affinity were not different in exercised and control rats. Increased cellular Fe was mainly located in the stromal fraction, suggesting that most of accumulated Fe was transported to the mitochondria for heme synthesis. The findings demonstrated that the increased cellular Fe uptake in exercised rats was a consequence of the increased TfR expression rather than the changes in TfR affinity and Tf recycling time. The increase in TfR expression and cellular Fe accumulation, as well as the decreased serum Fe concentration and nonheme Fe in the liver and the spleen induced by exercise, probably represented the early signs of Fe deficiency.  (+info)

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Magnesium is a cofactor in more than 300 enzyme systems that regulate diverse biochemical reactions in the body, including protein synthesis, muscle and nerve function, blood glucose control, and blood pressure regulation. Magnesium is required for energy production, oxidative phosphorylation, and glycolysis. It contributes to the structural development of bone and is required for the synthesis of DNA, RNA, and the antioxidant glutathione. Magnesium also plays a role in the active transport of calcium and potassium ions across cell membranes, a process that is important to nerve impulse conduction, muscle contraction, and normal heart rhythm. Magnesium Bisglycinate has higher absorbability and bioavailability that other forms of magnesium and is gentle on the stomach. Medicinal Ingredients:Each vegetarian tablet contains:• Magnesium (bisglycinate) 100 mg Recommended Dosage: Adults: 1 capsule 1-2 times per day or as directed by a health care practitioner. 120 capsules
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Thornes Iron Bisgylcinate is NSF Certified for Sport®. It is essential for the formation of red blood cells.* The U.S. Centers for Disease Control has determined that the prevalence of iron deficiency is greatest among toddlers (7% of those ages 1-2 years) and menstruating adolescent and adult females (9-16 % of individuals ages 12-49, whether they are athletes or not. Conventional iron supplementation, including forms such as ferrous sulfate, can cause gastrointestinal side effects - including nausea, vomiting, constipation, diarrhea, and dark-colored stools - because these conventional forms of iron are poorly absorbed. Thornes Iron Bisglycinate provides 25 mg of elemental iron per capsule that has been reacted with glycine for optimal absorption in the gastrointestinal tract, thus helping to decrease the typical gastrointestinal side effects ...
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INDICATIONS Vitamin A (as Vitamin a Palmitate) ............ 10,000.00 IU Vitamin C (as Sodium Ascorbate) .............. 1,500.00 mg Vitamin D3 (as Cholecalciferol) ............... 2,000.00 IU Magnesium (as TRAACS Magnesium Bisglycinate Chelate) ..... 125.00 mg Zinc (as TRAACS Zinc Bisglycinate Chelate) .......... 30.
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The oral application of a newly developed ferrous bisglycinate paste for suckling piglets at a dose of 180 mg/kg body weight led to increased death rates in 10% (n = 10) of Swiss test pig breeding farms (n = 100). Necropsy examination of suckling piglets (n = 12), selected randomly from the test farms with increased death rates, demonstrated severe gastric mucosal ulceration and necrosis. Due to the presence of crystalline iron surface coating within the gastric lesions, the iron was considered as the toxic principle and cause of death. To demonstrate the direct toxicity of ferrous bisglycinate, the paste was administered experimentally to a litter of suckling piglets (n=11). Different time points (24, 48 and 72 h post partum) and doses (180 mg/kg and 360 mg/kg) were investigated. The manufacturers recommended dose of 180 mg/kg corresponded to approximately 36 mg Fe/kg and to 6.4 % of the acute lethal dose(50) of oral iron in rats. In all piglets the lesions were reproduced and most severe at ...
Kirkmans Buffered Magnesium Bisglycinate is a hypoallergenic formulation for individuals with special requirements and sensitivities. Magnesium glycinate is a form of magnesium that is easier to digest and absorb than some other forms of magnesium. This product is also part of the Bio-Max Series‚ which uses forms of nutrients that have clinically proven to be among the best absorbed and most highly bioavailable. These capsules are buffered‚ which means that they are resistant to pH changes‚ making them less reactive and less likely to irritate the digestive tract-while also being easier to absorb. Kirkman uses magnesium glycinate exclusively sourced from Albion Labs‚ Inc. of Clearfield‚ Utah‚ a leader in the manufacture of mineral chelates. The use and effectiveness of magnesium supplementation is well-documented. Magnesium is an essential mineral that is involved in many bodily functions‚ while supporting strong bones and teeth. It is an essential element of cellular metabolism ...
Thornes Magnesium Bisgylcinate is NSF Certified for Sport®. Magnesium is essential for the health of the heart and blood vessels, brain, bones, skeletal muscles, lungs, and pancreas.* As a cofactor for more than 600 enzymes, magnesium supports numerous mechanisms of action; for example, it relieves bronchial spasms, relaxes smooth and skeletal muscle, enhances insulin sensitivity, and is a cofactor in numerous enzymatic reactions necessary for energy production.* Other magnesium mechanisms of action include modulating intracellular electrical activity and improving endothelial-dependent vasodilation, which support heart and lung health.* Thornes Magnesium Bisglycinate is formulated for optimal absorbability.* Its molecular structure also reduces the laxative effect typically seen in magnesium supplements.* Lightly sweetened with Monk Fruit and a hint of citrus. A low level of magnesium is associated with an increased level of C-reactive protein ...
Ferrasorb benefits those with a greater need for iron and those who have difficulty absorbing iron.* It contains active forms of vitamin B6, vitamin B12, folate and well-absorbed iron bisglycinate with vitamin C to enhance iron absorption.* Contains 36 mg of elemental iron per capsule Provides the active forms of folat
Magnesium Bis-Glycinate 200 delivers a significant 200mg dose of elemental magnesium in every capsule. Magnesium bisglycinate is the preferred form of magnesium due to its superior absorption and gentleness on the bowels. Each bottle contains a 240 day supply of 100% pure magnesium bisglycinate, in easy to swallow vegetable capsules. Magnesium has been shown by research to be essential to maintaining the health of bones and teeth as well as the functioning of muscles, including the heart muscle.. ...
irc://irc.ubuntu.com/ubuntu-it,#ubuntu-it]],,BR,,[[irc://irc.ubuntu.com/ubuntu-it+1,#ubuntu-it+1]],,BR,,[[irc://irc.ubuntu.com/ubuntu-it-chat,#ubuntu-it-chat]],,BR,,[[irc://irc.ubuntu.com/ubuntu-it-dev,#ubuntu-it-dev]],,BR,,[[irc://irc.ubuntu.com/ubuntu-it-doc,#ubuntu-it-doc]],,BR,,[[irc://irc.ubuntu.com/ubuntu-it-fcm,#ubuntu-it-fcm]],,BR,,[[irc://irc.ubuntu.com/ubuntu-it-forum,#ubuntu-it-forum]],,BR,,[[irc://irc.ubuntu.com/ubuntu-it-meeting,#ubuntu-it-meeting]],,BR,,[[irc://irc.ubuntu.com/ubuntu-it-ops,#ubuntu-it-ops]],,BR,,[[irc://irc.ubuntu.com/ubuntu-it-promo,#ubuntu-it-promo]],,BR,,[[irc://irc.ubuntu.com/ubuntu-it-test,#ubuntu-it-test]],,BR,,[[irc://irc.ubuntu.com/ubuntu-it-trad,#ubuntu-it-trad]],,[[ItalianTeam,Italy]],,[[https://launchpad.net/~perottae,jester ...
irc://irc.freenode.net/ubuntu-it,#ubuntu-it]],,BR,,[[irc://irc.freenode.net/ubuntu-it+1,#ubuntu-it+1]],,BR,,[[irc://irc.freenode.net/ubuntu-it-chat,#ubuntu-it-chat]],,BR,,[[irc://irc.freenode.net/ubuntu-it-dev,#ubuntu-it-dev]],,BR,,[[irc://irc.freenode.net/ubuntu-it-doc,#ubuntu-it-doc]],,BR,,[[irc://irc.freenode.net/ubuntu-it-fcm,#ubuntu-it-fcm]],,BR,,[[irc://irc.freenode.net/ubuntu-it-forum,#ubuntu-it-forum]],,BR,,[[irc://irc.freenode.net/ubuntu-it-meeting,#ubuntu-it-meeting]],,BR,,[[irc://irc.freenode.net/ubuntu-it-ops,#ubuntu-it-ops]],,BR,,[[irc://irc.freenode.net/ubuntu-it-promo,#ubuntu-it-promo]],,BR,,[[irc://irc.freenode.net/ubuntu-it-test,#ubuntu-it-test]],,BR,,[[irc://irc.freenode.net/ubuntu-it-trad,#ubuntu-it-trad]],,[[ItalianTeam,Italy]],,[[https://launchpad.net/~perottae,jester ...
Reduced lglutathione (150 mg). Detoxification support†. 100 vegetarian capsules. magnesium (as traacs® magnesium bisglycinate chelate, magnesium oxide‡). Reduced lglutathione.
irchelp.org is a website about the workings of IRC for both newbies and experts alike. It exists since 1996, but has recently been converted to jekyll.
attoparsec (==0.10.*), base (==4.*), bytestring (==0.9.*), containers (==0.4.*), cprng-aes (==0.2.*), data-lens (==2.10.*), data-lens-template (==2.1.*), HTTP (==4000.2.*), MonadCatchIO-mtl (==0.3.*), mtl (==2.1.*), network (==2.3.*), regex-pcre-builtin (==0.94.*), stm (==2.3.*), text (==0.11.*), time (==1.4.*), tls (==0.9.*), tls-extra (==0.4.*) [details] ...
Ушбу командалар яхшилиги шундаки, тармоққа уланиш имкони йўқ вақтда ҳам уларни ишлатиш мумкин. Агар сизга ушбу қўлланма ёрдами етарли бўлмаса сиз уларни Freenode IRC (irc.freenode.net) сервер ...
Objective: To compare the effects of oral ferrous bisglycinate 25 mg iron/day vs. ferrous sulfate 50 mg iron/day in the prevention of iron deficiency (ID) and iron deficiency anemia (IDA) in pregnant women. Design: Randomized, double-blind, intention-to-treat study. Setting: Antenatal care clinic. Sample: 80 healthy ethnic Danish pregnant women.. Methods: Women were allocated to ferrous bisglycinate 25 mg elemental iron (Aminojern®) (n=40) or ferrous sulfate 50 mg elemental iron (n=40) from 15 to 19 weeks of gestation to delivery. Hematological status (hemoglobin, red blood cell indices) and iron status (plasma iron, plasma transferrin, plasma transferrin saturation, plasma ferritin) were measured at 15-19 weeks (baseline), 27-28 weeks and 36-37 weeks of gestation. Main outcome measures: Occurrence of ID (ferritin ,15 μg/L) and IDA (ferritin ,12 μg/L and hemoglobin ,110 g/L).. Results: At inclusion, there were no significant differences between the bisglycinate and sulfate group concerning ...
Arguably the most serious problem with most current nutrient risk assessment methodologies is that they are based upon the assessment of entire nutrient groups (e.g. vitamin D, vitamin E, calcium, zinc or iron), as opposed to individual nutrient forms (egg vitamin D3, gamma-tocopherol, calcium hydroxyapatite, zinc sulphate or iron bisglycinate).. Why is this important? Because, in short, the supposed risks from consuming a particular vitamin or a mineral are highly dependent upon the chemical form in which it is presented.. For example, ferrous sulphate, commonly prescribed by medical doctors to treat anaemia, is generally recognized as the most toxic form of iron, and can potentially cause a number of unpleasant side effects, including gastro-intestinal discomfort and nausea. However, iron bisglycinate, the form widely recommended by clinical nutritionists and nutritional therapists is a far gentler form of iron, and does not share the unpleasant the side effects of its relatively more toxic ...
The most favored speculation is that on binding to its receptor, Fe-citrate is dissociated and Fe and citrate are taken up independently by cells [forty,41], with the concomitant reduction of ferric iron in the approach. Our outcomes expose a remarkably very similar sample between Fe and citrate uptake, while a craze for a better rate of citrate uptake about Fe was noticed, supporting the speculation that various mechanisms regulate the uptake of the two components. The current benefits also display that the variances in Fe uptake in each and every experimental problem and the high correlation involving Fe3Cit3 and Fe uptake are not thanks to a preferential uptake of membrane-certain Fe in unique ailments but rather may possibly reflect a higher specificity of a putative receptor for the oligomeric Fe-citrate species. SolithromycinWe anticipate that this locating could be instrumental in the look for for the elusive Fe-citrate transporter because it represents the identification of the ligand to ...
|p|Iron SAP™ supports red blood cell formation, health hemoglobin and plasma ferritin levels, energy, stamina, immunity, and cognitive health.* Iron SAP™ contains the bisglycinate form for maximum absorption and efficacy, and enhanced GI toler
CLINICAL STRENGTH Chelate Mag 2 provides Magnesium, an essential mineral, in the form of an easy-to-absorb Patented Amion Acid Chelate compound of magnesium bisglycinate. Magnesium helps keep blood pressure stable, promotes heart health, regulates nerve and muscle function, and builds bone, DNA, and protein. A lack of magnesium may also contribute to headaches and migraines and sleepless nights.
|p|Dual-Mag Complex™ offers two unique forms of magnesium, buffered bisglycinate and lysinate glycinate chelates, that are broadspectrum in activity, well-tolerated, and highly bioavailable. This provides an efficacious, synergistic blend with numer
00:12 RSpliet: And back in those days, X.org always ran as root and had access to /dev/mem to do stuff. KMS took security forward a step, I have no idea how xf86-driver-nv (a UMS - user-space mode setting - driver) was adapted to the new reality ...
13:19 Eliasvan: tobijk: because when the card is powered off I verified with nvagetbios that my previous write succeeded, but as soon as I modprobe nouveau, and then download the vbios via cat /sys/kernel/debug/dri/0/vbios.rom , vbios.rom to see whether the write is persistent, the write seems to be undone (overwritten by the default value ...
2021woxikon.fr· Contactez-nous· Politique de confidentialité. » Français Anglais Traductions de liquéfaction vers liste de clients irc ...
trackbot, comment ACTION-25 n the U.S. the EFOIA Amendments require agencies to make available any records that are requested by anyone and likely to be of interest to three or more citizens. It also requires agencies to take reasonable steps to make information available in whatever form it is requested, e.g., XML. (by Owen ...
Semantic Scholar extracted view of The uptake in vitro of radioactive iron by avian erythrocytes. by Wallace N. Jensen et al.
Looking for online definition of iron-59 in the Medical Dictionary? iron-59 explanation free. What is iron-59? Meaning of iron-59 medical term. What does iron-59 mean?
A delicious lemon-lime flavoured magnesium powder containing vitamins, minerals and amino acids. It provides 320mg of elemental magnesium per serve made up from magnesium citrate and magnesium bisglycinate, two well-absorbed forms of magnesium. Buy Herbs of Gold Muscle Resuscitation Online & Save It contains vitami
Different aspects related to the sol-gel preparation and structural investigation of silico-phosphate glasses (SiO2-P2O5 system) doped with Fe ions are reported. During the preparation process, tetrae
[105 Pages Report] Check for Discount on Global Ferric Citrate Market Professional Survey Report 2016 report by QYResearch Group. This report mainly covers the following Segment regions including (the...
Visit Our Website http://animerg.se/ for our latest stuff and for requesting your anime!:! Come Join us in our IRC Channel! :- #[email protected] ...
The IRC section 1031 exchange is one of the most powerful tax-saving and wealth-building tools available for people who own highly appreciated land.
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Objective: To compare the effects of oral ferrous bisglycinate 25 mg iron/day vs. ferrous sulfate 50 mg iron/day in the prevention of iron deficiency (ID) and iron deficiency anemia (IDA) in pregnant women. Design: Randomized, double-blind, intention-to-treat study. Setting: Antenatal care clinic. Sample: 80 healthy ethnic Danish pregnant women.. Methods: Women were allocated to ferrous bisglycinate 25 mg elemental iron (Aminojern®) (n=40) or ferrous sulfate 50 mg elemental iron (n=40) from 15 to 19 weeks of gestation to delivery. Hematological status (hemoglobin, red blood cell indices) and iron status (plasma iron, plasma transferrin, plasma transferrin saturation, plasma ferritin) were measured at 15-19 weeks (baseline), 27-28 weeks and 36-37 weeks of gestation. Main outcome measures: Occurrence of ID (ferritin ,15 μg/L) and IDA (ferritin ,12 μg/L and hemoglobin ,110 g/L).. Results: At inclusion, there were no significant differences between the bisglycinate and sulfate group concerning ...
Micronized Nutrient Capsule: Vitamin A (from beta carotene), Thiamin (Vitamin B1 from organic food blend), Riboflavin (Vitamin B2 from organic food blend), Niacin (Vitamin B3 as niacinamide from organic food blend), Vitamin B6 (Pyridoxine from organic food blend), Folate (Vitamin B9 from organic food blend), Vitamin B12 (Methylcobalamin), Biotin, Pantothenic Acid (Vitamin B5 from organic food blend), Iron (Ferrous Bisglycinate chelate), Magnesium (Magnesium glycinate chelate), Zinc (Zinc Bisglycinate chelate), Selenium (Selenium glycinate chelate), Copper (Copper bisglycinate chelate), Manganese (Magnesium bisglycinate chelate), Chromium (Chromium nicotinate glycinate chelate), Molybdenum (Molybdenum glycinate chelate), Proprietary Master Formula Capsule Blend: Atlantic kelp, Inositol, PABA (Para amino benzoic acid), Boron citrate, Lycopene, Spirulina algae, Barley grass, Citrus bioflavanoids, Orange fruit powder, NingXia wolfberry (Lycium barbarum) powder, Olive (Olea europea) leaf extract, ...
1. Iron absorption from 10 mg Fe (as ferrous sulphate), labelled with 1.3 mg 58Fe, was measured in fasting, non-anaemic adult subjects by the faecal-balance technique. The measurement was performed twice, each subject being given, in random order, either 50 mg Fe or a placebo 18 h before the 58Fe-labelled FeSO4. 2. The 50 mg Fe load significantly reduced Fe absorption the following day (P less than 0.01), from a mean of 35.4 (SEM 4.6)% to 29.0 (SEM 5.1)%. This points to the importance of strict dietary control during Fe-absorption studies to eliminate bias in results. 3. In a separate study, the feasibility of using 58Fe-enrichment of erythrocytes, measured by neutron activation analysis (NAA), 10 d after a meal labelled with 0.69 mg 58Fe as an index of Fe absorption was examined. The levels of 58Fe in the blood were detectable by NAA. Regression analysis showed a significant relation between 58Fe-enrichment of blood and 58Fe absorption, calculated as the difference between intake and faecal ...
With the growing interest of cardiovascular computed tomography around the world, international membership in the Society of Cardiovascular Computed Tomography (SCCT) has been increasing annually. As the number of SCCT members in a particular country or region grow to a certain size, it becomes feasible for those members to be able to establish an International Regional Committee (IRC) of SCCT. The Board of Directors recognizes this and actively encourages the formation of International Regional Committees for the mutual benefit for the local members in those regions and SCCT. IRCs are committees set up to promote cardiovascular CT and the objectives of SCCT in a certain region.. Australia/New Zealand (ANZ) IRC. Brazil IRC. Canada IRC. China IRC. Europe IRC. India IRC. Israel IRC. Japan IRC. Korea IRC. Latin America IRC. Middle East IRC. Taiwan IRC. UK IRC. To learn more about the International Regional Committee Policy, which details the criteria for IRCs, click here.. If you are interested in ...
Background: Food fortification is one approach for addressing anemia, but information on program effectiveness is limited.Objective: We evaluated the impact of Costa Ricas fortification program on anemia in women aged 15-45 y and children aged 1-7 y.Design: Reduced iron, an ineffective fortificant, was replaced by ferrous fumarate in wheat flour in 2002, and ferrous bisglycinate was added to maiz ...
rat HFE protein: an MHC class I-like protein that must bind beta2-microglobulin for proper cell surface expression; GenBank AJ001517
Using a selection system that was enriched for mutants unable to grow on low-iron media, Askwith et al. reported the identification of a mutant, fet3, that was unable to grow on low-iron media (14). This mutant had a normal surface reductase activity but was unable to accumulate 59Fe. A gene that could complement both the low-iron growth defect and the inability to accumulate radioactive iron was identified by complementation of the mutant strain with a genomic library. Genetic studies.... ...
Iron is a mineral Most of the iron in the body is found in the hemoglobin of red blood cells and in the myoglobin of muscle cells Iron is needed for transporting Get Price ...
An IRC based tool for testing the capabilities of a botnet. - GitHub - jpdias/botnet-lab: An IRC based tool for testing the capabilities of a botnet.
We are currently adding data for this species for central and northern Florida. If you would like to contribute information or images, please contact George Gann via the IRC staff page. ...
you are right. But while you forget help informations after some month, if the app is user friendly/instinctive you can use it easily also when you mind is still dreaming or doing something else. Then, this will produce a better integration with the human side and also with the rest of the OS (as secondary effect while trying to reach a good usability ...
AM: it is possible to model XACML, problem is to find out how to prevent attack. if there is no relation between paper and eve. Now if charly comes on, if eve has already relation to paper p, deny. Can model this with XACML ...
This hook has been enabled on mozilla-mobile-5.0 (for testing), and now for mozilla-inbound, and went active today. evilpie on irc said there was more bikeshedding on this implementation, and that it was recommended that I hold off that in deploying it until the discussion had resolved ...
This is the signup topic for The Simpsons Mafia which will be hosted primarily by me. Many users have already signed up on IRC but there is still space to...
In another study, 17 subjects received iron supplement shots containing radioisotopes of iron. Neither the children nor their ... Radioisotope Studies at the Fernald State School, Massachusetts". Retrieved 2017-06-24. SHARPE LM, PEACOCK WC, COOKE R, HARRIS ... MIT Professor of Nutrition Robert S. Harris led the experiment, which studied the absorption of calcium and iron. The boys were ... The 57 club members ate iron-enriched cereals and calcium-enriched milk for breakfast. In order to track absorption, several ...
Longer-life radioisotopes, typically caesium-137 and strontium-90, present a long-term hazard. Intense beta radiation from the ... Iron-59 follows at 300 hours, and after 100-300 days, the significant contributor becomes cobalt-60. Radioactive particles can ... For ground bursts, the elements of concern are aluminium-28, silicon-31, sodium-24, manganese-56, iron-59, and cobalt-60. The ... The primary fallout hazard is gamma radiation from short-lived radioisotopes, which represent the bulk of activity. Within 24 ...
... metal tarnishes slowly in air, forming a spalling green oxide layer like iron rust; a centimetre-sized sample of ... 38 other radioisotopes have been synthesized. All of these isotopes have half-lives under a day (and most under a minute), with ...
... and thus is particularly suitable as an imaging radioisotope. Gadolinium(III), Iron(III), Manganese(II): For MRI imaging ... Iron: iron toxicity, iron poisoning, or iron overload is well known. Iron does test only very weakly positive for the Ames test ... Platinum, Titanium, Vanadium, Iron: cis DDP (cis-diaminedichoroplatinum), titanium, vanadium, and iron have been shown to react ... Examples of specific types of metal anemia include: Iron: common simple anemia (iron deficiency), results in the loss of ...
Brucer invented an "iron maiden" containing radioactive sand which was tested for the treatment of breast cancer. That year he ... Brucer told a conference that the use of radio-isotopes of iodine, gold and phosphorus was becoming increasingly commonplace. ... Iron maiden' tried for breast cancer (1955) - on Newspapers.com". Newspapers.com. Retrieved 2016-11-13. "Atom scientists fight ... They were given atomic "cocktails" to drink and injections of radio-isotopes, and became temporarily radioactive. While not ...
The ore is then added to a leach tank of sulfuric acid and ferrous iron (Fe2+) in a 1.6:1 ratio. The iron reacts with the ... Several radioisotopes have been isolated and described, ranging in atomic weight from 44 u (44Mn) to 69 u (69Mn). The most ... The male magnes attracted iron, and was the iron ore now known as lodestone or magnetite, and which probably gave us the term ... Manganese(III) reacts with iron(II) to reduce strong green color in glass by forming less-colored iron(III) and slightly pink ...
This iron potassium cyanide compound acts as an ion-exchanger. The cyanide is so tightly bonded to the iron that it is safe for ... Just because a radioisotope is released it does not mean it will enter a human and then cause harm. For instance, the migration ... This paper also reports details of the effect of potassium, ammonium and calcium ions on the uptake of the radioisotopes. In ... If the radioisotope is tightly bound to the minerals in the soil, then less radioactivity can be absorbed by crops and grass ...
No clear geochronological data exist for CIDs, as no radioisotope methods are applicable to directly date CID deposits. ... The source of iron for the CIDs is believed to be a Miocene aged iron-rich soils which developed upon a palaeosurface (since ... Channel iron deposits are formed by accumulation of massive deposits of what is generally referred to as "pisolite iron gravels ... Channel iron deposits (CID) are iron-rich fluvial sedimentary deposits of possible Miocene age occupying meandering ...
The mixtures contained radioactive iron and the researchers were determining how fast the radioisotope crossed into the ... The bones were cremated and the ashes analyzed for radioisotopes. This project was kept secret primarily because it would be a ... which keeps the remains of people who died with radioisotopes in their body. Three patients at Billings Hospital at the ... 73 mentally disabled children were fed oatmeal containing radioactive calcium and other radioisotopes, to track "how nutrients ...
They have also been identified as potential ligands for radioisotope delivery, with selectivity towards hypoxic tissues, ... usually mediated through binding to copper or iron in cells. ...
Ruthenium and osmium have very similar chemistry due to the lanthanide contraction but iron shows some differences from them; ... using the synthetic osmium radioisotopes 172Os and 173Os as a reference. During the experiment, seven hassium atoms were ... The team bombarded a lead (208 82Pb ) target with accelerated iron (58 26Fe ) nuclei. GSI's experiment to create element 108 ... In preparation for the chemical characterization of hassium, research focused on ruthenium and osmium rather than iron because ...
Since newer radioisotopes involve nanoparticles such as 99mTC-labelled iron oxide nanoparticles, they could potentially be ... Unlike PET, the radioisotopes used in SPECT (such as technetium-99m) emit γ-rays directly, instead of from annihilation events ... As the radioisotopes decay, they emit positrons which annihilates with electrons found naturally in the body. This produces 2 γ ... Almost any biological compound can be traced by micro-PET, as long as it can be conjugated to a radioisotope, which makes it ...
Silicon-32 Phosphorus-32 Sulfur-35 Sulfur-38 Chlorine-34m Chlorine-36 Chlorine-38 Chlorine-39 Argon-39 Argon-42 Calcium-41 Iron ... A trace radioisotope is a radioisotope that occurs naturally in trace amounts (i.e. extremely small). Generally speaking, trace ... Trace radioisotopes are therefore present only because they are continually produced on Earth by natural processes. Natural ... radioisotopes have half-lives that are short in comparison with the age of the Earth, since primordial nuclides tend to occur ...
Iron may be the most common as it accounts for 90% of all refined metals. Platinum may be the most ubiquitous given it is said ... heavy metals are also employed as spallation targets for the production of neutrons or radioisotopes such as astatine (using ... Heat escaping from the inner solid core is believed to generate motion in the outer core, which is made of liquid iron alloys. ... In golf, tungsten, brass, or copper inserts in fairway clubs and irons lower the centre of gravity of the club making it easier ...
Twenty-eight radioisotopes have been characterized; the most stable are 60Co with a half-life of 5.2714 years, 57Co (271.8 days ... For example, 57Co is produced by cyclotron irradiation of iron. The main reaction is the (d,n) reaction 56Fe + 2H → n + 57Co. ... Cobalt-57 is used as a source in Mössbauer spectroscopy of iron-containing samples. Electron capture by 57Co forms an excited ... Measurement of the gamma ray spectrum provides information about the chemical state of the iron atom in the sample. "Standard ...
Thirty-six radioisotopes have been synthesized, ranging in atomic mass from 169 to 205. The most stable of these is 195 Au with ... Blue gold can be made by alloying with iron, and purple gold can be made by alloying with aluminium. Less commonly, addition of ... Most of gold's radioisotopes with atomic masses below 197 decay by some combination of proton emission, α decay, and β+ decay. ... Only salts and radioisotopes of gold are of pharmacological value, since elemental (metallic) gold is inert to all chemicals it ...
In contrast, iron forms a more porous oxide through which oxygen can migrate, causing continued rusting. Passivation can be ... 19 radioisotopes have been characterized, with the most stable being 50Cr with a half-life of (more than) 1.8×1017 years, and ... Chromium, unlike iron and nickel, does not suffer from hydrogen embrittlement. However, it does suffer from nitrogen ... Pure chromium metal is produced by a different process: roasting and leaching of chromite to separate it from iron, followed by ...
The sulfur may be present as sulfates of sodium, magnesium, calcium, or iron. A sulfide of iron is also possible. The Spirit ... The Viking 2 lander was powered by radioisotope generators and operated on the surface until April 12, 1980, when its batteries ... The tested soil contained abundant silicon and iron, along with significant amounts of magnesium, aluminum, sulfur, calcium, ...
1951 The 2.5 liter GM Iron Duke engine, also called the 151 The human gene GPR151, or G protein-coupled receptor 151 Psalm 151 ... is a main belt asteroid The atomic number of an element temporarily called unquintunum Samarium-151 is a radioisotope of ...
The inclusion of iron and chromium rich regions probably originate from a molten nozzle that did not have enough time to be ... An eventually present layer of more dense molten metal, containing fewer radioisotopes (Ru, Tc, Pd, etc., initially composed of ... The zirconium-rich phase was found around the pores and on the grain boundaries and contains some iron and chromium in the form ... and is initially composed primarily of zirconium dioxide and uranium dioxide, possibly with iron oxide and boron oxides), can ...
Unlike the lighter congener iron, ruthenium is paramagnetic at room temperature, as iron also is above its Curie point. The ... Of these radioisotopes, the most stable are 106Ru with a half-life of 373.59 days, 103Ru with a half-life of 39.26 days and ... Like iron but unlike osmium, ruthenium can form aqueous cations in its lower oxidation states of +2 and +3. Ruthenium is the ... Fifteen other radioisotopes have been characterized with atomic weights ranging from 89.93 u (90Ru) to 114.928 u (115Ru). Most ...
... iron radioisotopes MeSH D01.496.749.540 - krypton radioisotopes MeSH D01.496.749.560 - lead radioisotopes MeSH D01.496.749.590 ... iron radioisotopes MeSH D01.496.532.500 - mercury radioisotopes MeSH D01.496.586.520 - nitrogen radioisotopes MeSH D01.496. ... xenon radioisotopes MeSH D01.496.749.960 - yttrium radioisotopes MeSH D01.496.749.980 - zinc radioisotopes MeSH D01.496.807.800 ... xenon radioisotopes MeSH D01.496.943.800 - yttrium radioisotopes MeSH D01.496.966.800 - zinc radioisotopes MeSH D01.524.500.040 ...
However, nickel-56 then decays to cobalt-56 within a few weeks, then this radioisotope finally decays to iron-56 with a half ... followed by iron-58 and iron-56. This is the approximate basic reason why iron and nickel are very common metals in planetary ... Iron nuclei are the most stable nuclei (in particular iron-56), and the best sources of energy are therefore nuclei whose ... and past iron, the second increase outweighs the first. Iron-56 (56Fe) is the most efficiently bound nucleus meaning that it ...
A radio isotope analysis conducted in 2022 at Murdoch University determined that The Gentleman may have spent most of his life ... It was also revealed that his body had two cast iron shoe lasts attached to it. Each weighed 3 kilograms (6.6 lb), were based ...
An iron-nickel mixture is thought to compose Earth's outer and inner cores. Use of nickel (as natural meteoric nickel-iron ... At least 26 nickel radioisotopes have been characterized; the most stable are 59 Ni with half-life 76,000 years, 63 Ni (100 ... In a similar reaction with iron, iron pentacarbonyl can form, though this reaction is slow. If necessary, the nickel may be ... Nickel is preeminently an alloy metal, and its chief use is in nickel steels and nickel cast irons, in which it typically ...
... iron oxides and iron in an electric furnace. The vanadium ends up in pig iron produced from vanadium-bearing magnetite. ... Twenty-four artificial radioisotopes have been characterized, ranging in mass number from 40 to 65. The most stable of these ... If this titanomagnetite is used to produce iron, most of the vanadium goes to the slag, and is extracted from it. Vanadium is ... Vanadium is harder than most metals and steels (see Hardnesses of the elements (data page) and iron). It has good resistance to ...
"Iron Ore - Monthly Price - Commodity Prices - Price Charts, Data, and News - IndexMundi". "Global price of Iron Ore". "Iron Ore ... TV screens and in radio isotopes. Demand for these metals appeared to be increasing as computers and mobile phones became more ... The prices of iron ore rose sharply from around $10 per tonne in 2003 to around $170 in April 2009 (transported to China). ... The major metals such as iron, lead and tin are commonplace.[citation needed] Recycling of the aluminum, ferrous metals, copper ...
... iron, and protein amounts to aiding micronutrient deficiency in Third World countries like the Philippines. Dr. Rhodora R. ... a radioisotope laboratory, and screenhouses for testing the modified rice. On December 4, 2006, the Philippine Rice Research ...
Both are characteristic components of meteoric iron, though cobalt is much less abundant in iron meteorites than nickel. As ... Twenty-two radioisotopes have been characterized: the most stable, 60Co, has a half-life of 5.2714 years; 57Co has a half-life ... Except as recently delivered in meteoric iron, pure cobalt in native metal form is unknown on Earth. The element has a medium ... Cobalt-57 (Co-57 or 57Co) is a cobalt radioisotope most often used in medical tests, as a radiolabel for vitamin B12 uptake, ...
Iridium radioisotopes are used in some radioisotope thermoelectric generators. Iridium is found in meteorites with an abundance ... the high density and tendency of iridium to bond with iron caused most iridium to descend below the crust when the planet was ... Although the element is only mildly toxic, it is a hazardous material as a metal and its radioisotopes present a high health ... Caesium is mined mostly from pollucite, while the radioisotopes, especially caesium-137, a fission product, are extracted from ...
33 radioisotopes of neodymium have been detected as of 2022[update], with the most stable radioisotopes being the naturally ... However, for the best color, iron-containing impurities need to be minimized in the silica used to make the glass. The same ... Neodymium is also used to remove the green color caused by iron contaminants from glass. Neodymium is a component of "didymium ... Among these technologies, permanent magnets are often used to fabricate high-efficiency motors, with neodymium-iron-boron ...
Appropriate radioisotopes of elements within chemical compounds of the metabolic pathway being examined are used to make the ... and identify other abnormalities of the heart muscle itself such as infiltration with iron or amyloid protein. Disadvantages of ... Positron emission tomography (PET), a nuclear medicine imaging methodology for positron emitting radioisotopes. PET enables ...
Iron Ring Clock Text Analysis Portal for Research Whidden Lectures McMaster University was formed in 1887 as a result of a ... and medical radioisotope production; including 60 per cent of the world's supply of iodine-125, an isotope used in nuclear ...
Building on this material by adding cobalt on the B-site (replacing titanium) as well as iron, we have the material STFC, or ... health and safety consequences of decommissioning radioisotope thermal generators (RTGs) in Northwest Russia (PDF), Østerås: ...
The longest-lived radioisotope of lithium is lithium-8, which has a half-life of just 838.7(3) milliseconds. Lithium-9 has a ... Lithium ions replace magnesium or iron in certain octahedral locations in clays, and lithium-6 is sometimes preferred over ...
... iron-sulfur protein - isoenzyme - isoleucine - Isomer - Isothermal titration calorimeter - Isotopic tracer junk DNA kainic acid ... quaternary structure radioisotope - radioisotopic labelling - Raman spectroscopy - random coil - Ras gene - Ras protein - ...
... radioisotopes are used in some radioisotope thermoelectric generators. Iridium is found in meteorites in much higher ... A reinvestigation of irons with Ge concentrations between 25 and 80 ppm". Geochimica et Cosmochimica Acta. 37 (8): 1957-1983. ... The radioisotope iridium-192 is one of the two most important sources of energy for use in industrial γ-radiography for non- ... At least 37 radioisotopes have also been synthesized, ranging in mass number from 164 to 202. 192Ir, which falls between the ...
... iron and two isotopes of helium, He-3 and He-4. Distinguishing between helium isotopes will help determine which of several ... the extreme variation in solar irradiance made for an expensive mission and required a radioisotope thermal generator for power ...
The ferrous iron dissolved in the water oxidizes as the water reaches the surface, turning the water blood red. The test ... Autonomous underwater vehicle for exploring sinkholes in Mexico Radioisotope thermoelectric generator - Type of electric ...
... high iron (H) and low iron (L) chondrites. Their work "underscored the value of reliable chemical data" and led to significant ... Craig developed new methods in radiocarbon dating and applied radioisotope and isotope distribution to various topics in marine ... A compilation of stony and iron meteorite analyses". Meteoritics. 25 (4): 323-337. Bibcode:1990Metic..25..323J. doi:10.1111/j. ...
Turbine meter bodies are commonly made of bronze, cast Iron, or ductile iron. Internal turbine elements can be plastic or non- ... tracer methods may be used to deduce the flow rate from the change in concentration of a dye or radioisotope. Both gas and ... Providence, Rhode Island: Builders Iron Foundry. Lipták, Flow Measurement, p. 85 Report Number 3: Orifice Metering of Natural ...
... and iron. Also, MB found that much of the iron in Paso Robles soil was of the oxidized, Fe3+ form, which would happen if water ... The rover's operating temperature ranged from −40 to +40 °C (−40 to 104 °F). Radioisotope heater units provided a base level of ... Iron sulfate has very little cohesion, making it difficult for the rover's wheels to gain traction. JPL team members simulated ... Search for iron-containing minerals, identify and quantify relative amounts of specific mineral types that contain water or ...
Seven radioisotopes have been characterized, the most stable being 8Li with a half-life of 838 ms and 9Li with a half-life of ... Lithium ions substitute for magnesium and iron in octahedral sites in clay minerals, where 6Li is preferred to 7Li, resulting ... Lithium's coefficient of thermal expansion is twice that of aluminium and almost four times that of iron. Lithium is ... Other rechargeable batteries that use lithium include the lithium-ion polymer battery, lithium iron phosphate battery, and the ...
Type Ia supernovae produce mainly silicon and iron-peak elements, metals such as nickel and iron. Core collapse supernovae ... Fields, B. D.; Hochmuth, K. A.; Ellis, J. (2005). "Deep‐Ocean Crusts as Telescopes: Using Live Radioisotopes to Probe Supernova ... Iron-60 enrichment was later reported in deep-sea rock of the Pacific Ocean. In 2009, elevated levels of nitrate ions were ... When a massive star develops an iron core larger than the Chandrasekhar mass it will no longer be able to support itself by ...
Solutions of technetate(VII) react with the surface of iron to form technetium dioxide, in this way it is able to act as an ... 99m Tc radioisotope generator. As the 99 Mo continuously decays to 99m Tc , the 99m Tc can be removed periodically (usually ... while the medically useful radioisotope 99m Tc O− 4 is eluted in the saline. The eluate from the column must be sterile and ...
He was awarded the Iron Cross, Second Class, on 30 March 1915, and the city of Hamburg awarded him the Hanseatic Cross on 11 ... de Hevesy, Georg (1962). Adventures in Radioisotope Research. New York: Pergamon Press. OCLC 12162216. Retrieved 20 June 2015. ... He was awarded the Iron Cross, First Class, on 23 February 1918. He was discharged from the Army on 25 November 1918, soon ... He was seriously injured in 1917 in a gas attack and was awarded the Iron Cross 1st Class. Franck became the Head of the ...
"Natürliche Radioisotope: die "Atomuhr" für die Bestimmung des absoluten Alters von Gesteinen und archäologischen Funden". ... The deviation due to the ship's magnetism was corrected by movable iron masses at the binnacle. Thomson's innovations involved ... worked to perfect the adjustable compass to correct errors arising from magnetic deviation owing to the increased use of iron ...
An iron rod was bent into a bow and one end was heated in boiling water. When the ends of the iron bow were dipped into the two ... Space probes often use radioisotope thermoelectric generators with the same mechanism but using radioisotopes to generate the ... In 1794, Volta found that if a temperature difference existed between the ends of an iron rod, then it could excite spasms of a ... of iron rod] for about half a minute, then I took it out and without giving it time to cool, resumed the experiment with the ...
A further 31 artificial radioisotopes of tellurium are known, with atomic masses ranging from 104 to 142 and with half-lives of ... The largest consumer of tellurium is metallurgy in iron, stainless steel, copper, and lead alloys. The addition of steel and ... It is alloyed into cast iron for promoting chill for spectroscopy, where the presence of electrically conductive free graphite ... iron, and stainless steel. Of the chalcogens (oxygen-family elements), tellurium has the highest melting and boiling points, at ...
Iodine Ion Ionic bond ionization potential Irène Joliot-Curie Iridium iron Iron (III) oxide Irving Langmuir isocyanate Isomer ... radioisotope Radium Radon Radon difluoride Raman spectroscopy Raoult's law Redox Reduction Reflux Reversible reaction Rhazes ... Svante Arrhenius Syenite Sylvite synthetic radioisotope systematic element name Tabun Talc Talcum Tantalite Tantalum Tanzanite ...
The evidence pointed to an iron or iron sulphide core and mantle 400 to 1,300 kilometers (250 to 810 mi) below the surface, ... over what they perceived as an unacceptable risk to the public's safety from the plutonium in the Galileo's radioisotope ... Doppler data used to measure Io's gravitational field revealed that Io had a core of molten iron and iron sulfide. Another ... The discovery of Io's iron core raised the possibility that it had a magnetic field. The I24, I25 and I27 encounters had been ...
Iron will come from low-grade iron-bearing material such as raw rock from anywhere in an iron formation, not much different ... Radium has been replaced by much cheaper cobalt-60 and other radioisotopes in radiation treatment. Noncorroding lead as a cable ... As coking coal reserves decline, pig iron and steel production will use non-coke-using processes (i.e. electric steel). The ... Rock, 100 tonnes of "average" igneous rock, will yield eight tonnes of aluminum, five tonnes of iron, and 0.6 tonnes of ...
Skutterudites, a cobalt arsenide mineral with variable amounts of nickel and iron, can be produced artificially, and are ... NASA is developing a Multi-Mission Radioisotope Thermoelectric Generator in which the thermocouples would be made of ... This metal ore was found to demonstrate an improved thermoelectric performance after undering cation exchange with iron. Cation ... and are therefore used in some radioisotope thermoelectric generators (RTG) (notably the MHW-RTG and GPHS-RTG) and some other ...
Released radioisotopes pose a health danger to human populations, animals and plants as radioactive particles enter organisms ... impact of hydraulic fracturing Environmental impact of hydraulic fracturing in the United States Environmental impact of iron ...
... chromel-gold/iron alloy), the negative wire is gold with a small fraction (0.03-0.15 atom percent) of iron. The impure gold ... In a radioisotope thermoelectric generator, the radioactive decay of transuranic elements as a heat source has been used to ... Wide range is −270 °C to +740 °C and narrow range is −110 °C to +140 °C. Type J (iron-constantan) has a more restricted range ... Type B, S, R and K thermocouples are used extensively in the steel and iron industries to monitor temperatures and chemistry ...
Electron beams are an on-off technology that provide a much higher dose rate than gamma or X-rays emitted by radioisotopes like ... These investigations often involve collisions of heavy nuclei - of atoms like iron or gold - at energies of several GeV per ... radioisotope production for medical diagnostics, ion implanters for the manufacture of semiconductors, and accelerator mass ...
Aura (paranormal) § Aura photography Cherenkov radiation § Medical imaging of radioisotopes and external beam radiotherapy ... Psychic Discoveries Behind the Iron Curtain. High-voltage electrophotography soon became known to the general public as Kirlian ... Psi Discoveries Behind the Iron Curtain, (Prentice-Hall 1970) Iovine, John Kirlian Photography - A Hands on Guide , (McGraw- ...
Instead, we know that the Earth's core is composed of an alloy of iron and other minerals. Reconstructions of seismic waves in ... mapping using ground and airborne gamma spectrometry can be used to map the concentration and distribution of radioisotopes ... In the Earth's core, the circulation of the molten iron is structured by Taylor columns. Waves and other phenomena in the ... In the highly conductive liquid iron of the outer core, magnetic fields are generated by electric currents through ...
Iron Radioisotopes ✖ Remove constraint Subject: Iron Radioisotopes Genre Reports ✖ Remove constraint Genre: Reports ... 1. Iron Clearance and Utilization in Rats Using a Direct Method of Counting Fe59 Format: Text ...
It resembles iron or nickel.. How can it hurt me?. Because it decays by gamma radiation, external exposure to large sources of ...
Tens of millions of nuclear medicine procedures are performed each year, and demand for radioisotopes is increasing rapidly ... the use of radioisotopes for diagnostics, radiation therapy, radiopharmaceuticals and other beneficial medical uses of nuclear ... Iron-59 (46 d):. Used in studies of iron metabolism in the spleen. ... Home / Information Library / Non-power Nuclear Applications / Radioisotopes & Research / Radioisotopes in Medicine ...
Can Radioisotope Dating Be Trusted? , The Creation Podcast: Episode.... Carbon dating is a common method used to determine the ... Acids extract iron. Siderophores capture iron. Hyphae break new ground. And the cycle continues. Human mining engineers use ... which releases trace amounts of iron. This first step implies that the fungus uses a sensitive and accurate miniaturized iron- ... flavus manufactures and exports unique iron-trapping chemicals called siderophores. These keep iron atoms near so the microbe ...
Each sector has stray 50pF to the iron compensated by a 0.3µH coil each. These coils can consist approximately of 2.5 turns of ... Or they can produce useful radioisotopes, by 98Mo(n,g)99Mo or other. This would favour heavy water.. Marc Schaefer, aka ... Re: Tokamak produces radioisotopes « Reply #30 on: July 31, 2022, 11:34:34 AM » ... Re: Tokamak produces radioisotopes « Reply #31 on: August 06, 2022, 11:43:38 AM » ...
High-grade transvaal chalcopyrite was neutron-irradiated to produce radioisotopes copper- 64, iron-59, and sulfur-35. ... The effects of solution variables such as ph, oxygen partial pressure, and ferric iron concentration at different temperatures ...
Radioisotope, and Blue Dye Versus the Radioisotope Method in Breast Cancer: A Randomized Controlled Trial. Ann Surg Oncol 21: ... Innovative tracers such as indocyanine green (ICG), superparamagnetic iron oxide (SPIO), and microbubbles have been explored [ ... The present prospective study reports a radioisotope-free method of SLNB using a combination of ICG and MB that had a 99.6% ... Goonawardena J, Yong C, Law M (2020) Use of indocyanine green fluorescence compared to radioisotope for sentinel lymph node ...
Iron Binding Capacity of the Milk. H. SAITO. Radioisotope Laboratory, Nagoya University School of Medicine. The Japanese ... Radioisotope Service of Muroran Iron Works Hospital, **Balneotherapeutic Institute, School of Medicine, Hokkaido University. ... Radioisotope angiography for differentiation of hepatic mass. N. TONAMI, T. MISHIMA, Y. SUZUKI, K. HISADA. Division of Nuclear ... Application of Radioisotope Renogram in Pediatric Field. T. OKADA. Department of Pediatrics, Niigata University School of ...
But the value of radioisotopes cannot be estimated only in terms of money saved by industry (very large as the sums are) or in ... By means of them it is possible to control the production processes of pig iron and steel--to control automatically milling, ... Radioisotopes in mines check the operation of transportation mechanisms; in chemical works they control the levels of liquids ... Radioisotopes have also been extensively used in oil production, chiefly in studying the technical conditions of the wells. ...
Physiologically-based models are used for radioisotopes of calcium, iron, strontium, iodine, barium, lead, radium, thorium, ...
Shiner that radioisotopes iron, shrinkydink droppings thats disgusting, other sentences had. Trenchesthe same beastly suitor ...
A Mars sized impactor (of Earth) with its iron core also gives Earth an extra helping of the long lived radio-isotopes like ... iron core than smaller dwarf planets would and Theas iron core is assumed to have sank to the core of the Earth giving it a ... Image: The basin-forming process for an impactor 780 kilometers in diameter (with a 200-kilometer diameter of iron core) with ... iron loving elements) which has an affinity for the core and sank down into it but the halfnium 182 stayed in Earths mantle ...
Iron Radioisotopes - Preferred Concept UI. M0011723. Scope note. Unstable isotopes of iron that decay or disintegrate emitting ... Radioisotopes, Iron. Tree number(s):. D01.268.556.412.500.498. D01.268.956.287.500.498. D01.496.473.498. D01.496.749.514. ... Unstable isotopes of iron that decay or disintegrate emitting radiation. Fe atoms with atomic weights 52, 53, 55, and 59-61 are ... Fe atoms with atomic weights 52, 53, 55, and 59-61 are radioactive iron isotopes. ...
Iron --metabolism. en_US. dc.subject.mesh. Iron Radioisotopes. en_US. dc.subject.mesh. Malabsorption Syndromes --metabolism. en ... Absorption studies of iron and vitamin B12 by INMAS whole body counters. Indian Journal of Medical Research. 1973 Jan; 61(1): ... Absorption studies of iron and vitamin B12 by INMAS whole body counters.. en_US. ...
Here the main nuclides of concern in reactor metalwork are cobalt-60 and iron-55, both with ~5 year half-lives. Applying the 10 ... The period of 300 years is derived from 10 half-lives of the 2 main dangerous radioisotopes, caesium-137 and strontium-90: both ...
Studies of iron:zinc interactions in adult rats and the effect of iron fortification of two commercial infant weaning products ... can the Fe content of duodenal mucosal cells cause lumen or mucosal radioisotope dilution, or both, thus resulting in the ... Iron in food and its availability. Fairweather-Tait, S. J., 1989, In: Acta paediatrica Scandinavica. Supplement. 361, p. 12-20 ... Iron and zinc absorption in human subjects from a mixed meal of extruded and nonextruded wheat bran and flour. Fairweather-Tait ...
This is because the U.S. economy, from banks to telephone systems and from power plants to iron and steel works, relies ... which contaminate soils for three centuries with radioisotopes. ...
Iron radioisotope (substance). Code System Preferred Concept Name. Iron radioisotope (substance). Concept Status. Published. ...
Accumulation of radio-iron and plutonium, alone and in combination, inPseudomonas putidagrown in liquid cultures. J Radiol Prot ... "Radioisotopes" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH (Medical Subject ... This graph shows the total number of publications written about "Radioisotopes" by people in this website by year, and whether ... Below are the most recent publications written about "Radioisotopes" by people in Profiles. ...
More specifically, superparamagnetic iron oxide (SPIO) nanoparticles combined to 18F radioisotope and the PVC method named ... Positron emission tomography (PET) images are characterized by a low spatial resolution mainly due to: (i) radioisotopes ... Mais especificamente, como base deste projecto foram utilizadas nanopartículas SPIO (Superparamagnetic Iron Oxide) associadas a ...
Cobalt is a naturally-occurring element that has properties similar to those of iron and nickel. It has an atomic number of 27 ... If you do not have enough iron in your body, the body may absorb more cobalt from the foods you eat. Once cobalt enters your ... 60Co is the most important radioisotope of cobalt. It is produced by bombarding natural cobalt, 59Co, with neutrons in a ... Cobalt is a naturally-occurring element that has properties similar to those of iron and nickel. It has an atomic number of 27 ...
The medications and radioisotopes of VTE are universally the particular for buy friction stir welding. now VTE is herein be ... usually, these connectomics can also iron in establishing a better passport for the Primary browser of useful reddish-orange ...
Evaporation of Iron-, Nickel-, and Cobalt-Base Alloys at 760 to 980°C in High Vacuums Description: Report issued by the Oak ... Review of Radioisotopes Program, 1964 Description: Report issued by the Oak Ridge National Laboratory discussing a review of ... As stated in the abstract, an investigation was undertaken to determine the compatibility of conventional nickel, iron, and ... the Radioisotopes Program during 1964. Research and experimental projects conducted during 1964 is presented. This report ...
However, nickel-56 then decays to cobalt-56 within a few weeks, then this radioisotope finally decays to iron-56 with a half ... followed by iron-58 and iron-56. This is the approximate basic reason why iron and nickel are very common metals in planetary ... It is generally believed that iron-56 is more common than nickel isotopes in the universe for mechanistic reasons, because its ... where it has no time to decay to iron before being released into the interstellar medium in a matter of a few minutes, as the ...
They note that this is the only solution that avoids the use of radioisotopes but instead manages to maintain standard working ... The Sentimag System is contraindicated for any patient with a history of hypersensitivity to iron oxide or dextran compounds, ... and it is also not recommended for those with iron-overload disease or with a metal implant in the axilla or in the chest. ... uses the principle of magnetic susceptometry and generates an alternating magnetic field that transiently magnetizes the iron ...
Reinfelder for guidance with radio-isotope experiments; and E. P. Greenberg for helpful comments on the manuscript. This ... Quorum sensing and iron regulate a two-for-one siderophore gene cluster in Vibrio harveyi. / McRose, Darcy L.; Baars, Oliver; ... Quorum sensing and iron regulate a two-for-one siderophore gene cluster in Vibrio harveyi. In: Proceedings of the National ... Quorum sensing and iron regulate a two-for-one siderophore gene cluster in Vibrio harveyi. Proceedings of the National Academy ...
On Earth, it is solely produced by spallation processes with highly energetic cosmic particles at iron minerals. However, this ... The production of short-lived radioisotopes in the course of supernova explosions depends strongly on the mass and the ... heavier elements up to iron. After exhausting its "thermonuclear fuel" it undergoes a tremendous explosion (middle) - called ... the best possibility to directly observe freshly produced radioisotopes. A prominent example is the investigation of the ...
Iron is also essential for proper functioning of the brain and nervous system. ... Iron supplements help increase energy levels and build strong bones and muscles. ... This field involves using radioisotopes (radionuclides) as tracers and for.... Read more ... There are three main types of iron supplements: iron from plants, iron from animals, and iron from synthetic sources. The best ...
Russ: It grants a lexikon team der server fluorescence-radioisotope journal, to content total. Assist( Retro) Iron(III) or ...
It is the formation of ammonia from nitrogen and hydrogen using iron as the catalyst. Functional group and their pure iron from ... In the human body, radioisotopes are also used in sterilization of medical devices. Very few of the transition metals are found ... Iron, scratched, the greater the stability of the complex ion formed. Please enable javascript when a cyclopropane product ... One of the best alloy metal is Iron because it makes the material very attractive to the attraction. What can be stranded in ...
  • Unstable isotopes of iron that decay or disintegrate emitting radiation. (bvsalud.org)
  • Fe atoms with atomic weights 52, 53, 55, and 59-61 are radioactive iron isotopes. (bvsalud.org)
  • These include radium-224, radium-226, radium-228, thorium-232 (administered in colloidal form as thorium-232 dioxide), plutonium-239 (exposure to which also entails exposure to plutonium-240 and other isotopes of plutonium), radioisotopes of iodine including iodine-131, and phosphorus-32. (iarc.fr)
  • Two of these radioisotopes, iodine-131 and cobalt-60, proved crucial to the diagnosis and treatment of life-threatening diseases. (llnl.gov)
  • Nuclear accidents such as Fukushima (or nuclear war) can expose your body to radioactive iodine-131, a dangerous radioisotope. (meprepper.com)
  • The attributes of naturally decaying atoms, known as radioisotopes, give rise to several applications across many aspects of modern day life (see also information paper on The Many Uses of Nuclear Technology ). (world-nuclear.org)
  • These keep iron atoms near so the microbe can recover them essentially one atom at a time. (icr.org)
  • Zinc coating assists stop rusting on iron and steel surfaces, thereby stopping the permanent loss of the atoms of metals that bind with atmospheric oxygen and form oxides of the metals. (wifi4life.com)
  • IMSEAR at SEARO: Absorption studies of iron and vitamin B12 by INMAS whole body counters. (who.int)
  • Gupta NK, Bhola GC, Gupta S, Kalra K, Gupta MM. Absorption studies of iron and vitamin B12 by INMAS whole body counters. (who.int)
  • Measurement of non-haem iron absorption in non-anaemic rats using 59Fe: can the Fe content of duodenal mucosal cells cause lumen or mucosal radioisotope dilution, or both, thus resulting in the underestimation of Fe absorption? (uea.ac.uk)
  • ThThathat's a lot of iron suppthat'save a high concentration of minerals such as zinc and calcium, which can interfere with iron absorption . (healthpert.com)
  • Through radioisotope cisternography, affected patients have also been found to have a 3- to 5-fold decrease in CSF absorption. (medscape.com)
  • Accumulation of radio-iron and plutonium, alone and in combination, inPseudomonas putidagrown in liquid cultures. (musc.edu)
  • The bed preserves significant examples of noncontemporary plastics, glasses, and metals, including the earliest known examples of silicones, exceptionally well-preserved iron and aluminum alloys, and traces of artificially produced radioisotopes including uranium, cesium, and plutonium. (texastriffidranch.com)
  • There is widespread awareness of the use of radiation and radioisotopes in medicine, particularly for diagnosis (identification) and therapy (treatment) of various medical conditions. (world-nuclear.org)
  • High-grade transvaal chalcopyrite was neutron-irradiated to produce radioisotopes copper- 64, iron-59, and sulfur-35. (cdc.gov)
  • Functional group and their pure iron from the electrode in the draft was added to copper, they are often used to the direction of tumor cell. (shotgame.online)
  • The majority of the fossils in this slab are relatively unweathered plastics, mostly nylon and polyethylenes, but a significant number of unweathered metals including copper, gold, iron, aluminum, tungsten, and neodymium-boron composites. (texastriffidranch.com)
  • Too a lot zinc can also have an effect on the levels in your body of other elements, such as iron, copper, magnesium or calcium. (wifi4life.com)
  • At the identical time zinc is also the fourth-most frequent metal for sector, soon after iron, aluminum, and copper. (wifi4life.com)
  • Although zinc was employed by the ancient Greeks and Romans, it was not as popular as iron or copper, possibly since the element boils away prior to reaching the temperature essential to extract it from ore. (wifi4life.com)
  • It is well known that iron deficiency is common among women. (healthpert.com)
  • While there are several ways to develop iron deficiency, the most common is eating an insufficient amount of iron-rich foods. (healthpert.com)
  • Many assume that iron supplements are a good way to prevent iron deficiency. (healthpert.com)
  • Generally, people with anemia or iron deficiency should avoid taking supplements . (healthpert.com)
  • The Sentimag uses the principle of magnetic susceptometry and generates an alternating magnetic field that transiently magnetizes the iron oxide particles in Sienna+ and then, in turn, the tiny magnetic signature generated by the Sienna+ particles is detected by the Sentimag probe. (medscape.com)
  • The Sentimag System is contraindicated for any patient with a history of hypersensitivity to iron oxide or dextran compounds, and it is also not recommended for those with iron-overload disease or with a metal implant in the axilla or in the chest. (medscape.com)
  • To overcome side effects of radioisotopes (radiation exposure) and BD (allergic reactions), innovative tracers such as indocyanine green (ICG), superparamagnetic iron oxide (SPIO), and microbubbles have been explored. (medscape.com)
  • The characteristics of a system using an iron-based oxide cermet as fuel material are discussed. (worldwidescience.org)
  • The oxidized form of iron, Fe (III) or ferric oxide, can be used to detect the anaerobic respiration and metabolic rate of prokaryotes in the iron reduction zone. (helen-huang.org)
  • During the 1940s, the University of Vanderbilt began an experiment that gave more than 800 pregnant women radioactive iron. (historictalk.com)
  • In apparent anticipation of this problem, T. flavus manufactures and exports unique iron-trapping chemicals called siderophores . (icr.org)
  • Siderophores capture iron. (icr.org)
  • Also not considered are radionuclides (e.g., iron-55, gallium-67) which undergo radioactive decay through processes that do not include emission of either a or b particles. (iarc.fr)
  • Over 40 million nuclear medicine procedures are performed each year, and demand for radioisotopes is increasing at up to 5% annually. (world-nuclear.org)
  • In developed countries (a quarter of the world population) about one person in 50 uses diagnostic nuclear medicine each year, and the frequency of therapy with radioisotopes is about one-tenth of this. (world-nuclear.org)
  • The most common radioisotope used in diagnosis is technetium-99 (Tc-99), with some 40 million procedures per year, accounting for about 80% of all nuclear medicine procedures and 85% of diagnostic scans in nuclear medicine worldwide. (world-nuclear.org)
  • This achieves China's goal of eliminating the American people without destroying the natural resources and farmland through the use of nuclear weapons, which contaminate soils for three centuries with radioisotopes. (naturalnews.com)
  • The Nuclear Spectroscopic Telescope ARray (NuSTAR) launched at 13th June 2013 gives - at the present day - the best possibility to directly observe freshly produced radioisotopes. (psi.ch)
  • The effects of solution variables such as ph, oxygen partial pressure, and ferric iron concentration at different temperatures were measured. (cdc.gov)
  • The most typical decay mode of a radioisotope of zinc with mass quantity greater than 66 is beta decay (β−), which produces an isotope of gallium. (wifi4life.com)
  • Most zinc is used to galvanise other metals, such as iron, to prevent rusting. (rsc.org)
  • Radioisotopes" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (musc.edu)
  • Assist( Retro) Iron(III) or gallium(III) download A world der bicycle number book PDF approach and theoretical countries used coding urban category from edible online error populations. (web-wattenbeker-energieberatung.de)
  • It is the formation of ammonia from nitrogen and hydrogen using iron as the catalyst. (shotgame.online)
  • Radioisotope 56 Co formed on the foil would have sufficient kinetic energy to run out of the foil's surface and be implanted on the aluminum used as the secondary target. (batan.go.id)
  • After 2 days of cooling down, about 0.397 MBq of 56 Co stayed on the foil was counted by NaI(Tl) detector coupled with Multi Channel Analyzer (MCA).It was found that about 9.45% of the total 56 Co formed on the iron foil was successfully implanted into aluminum target. (batan.go.id)
  • Se comunican los resultados de las investigaciones sobre irradiacion, asi como de los trabajos efectuados en los circuitos del reactor. (worldwidescience.org)
  • Sterilization of medical equipment is also an important use of radioisotopes. (world-nuclear.org)
  • In the human body, radioisotopes are also used in sterilization of medical devices. (shotgame.online)
  • Iron supplements , especially those with vitamin B6, can cause many problems. (healthpert.com)
  • Red meat, grains, pulses, nuts, inexperienced leafy greens and dried fruit are all good sources of iron, however they are absorbed higher when eaten with food wealthy in Vitamin C. Docs can prescribe iron dietary supplements, or you should purchase liquid iron tonics. (20mg-cheapesttadalafil.com)
  • We will apply radioisotope and stable isotope labeling of collected sediments and combine these methods with molecular probing and nanoscale secondary iron mass spectrometry to investigate cryptic methane cycling on the microbial level. (helen-huang.org)
  • There can then be a knock-on impact of lack of these components - for instance, anaemia from a lack of iron. (wifi4life.com)
  • The same acid it used to extract iron from the mineral's surface also reacts with silicon and oxygen to form a gel-like silica layer that prevents further chemical extraction. (icr.org)
  • It is also found in whole grains and some vegetables, but iron from plant foods is not as efficient at transferring oxygen to the cells. (healthpert.com)
  • It resembles iron or nickel. (cdc.gov)
  • Cobalt is a naturally-occurring element that has properties similar to those of iron and nickel. (cdc.gov)
  • What happens when a soil fungus runs into a hard mineral containing precious trace amounts of nutritious iron? (icr.org)
  • When it contacts a suitable rock, the hyphae deploy an acid that immediately degrades the mineral surface, which releases trace amounts of iron. (icr.org)
  • This is where you get most of the iron, but it also contains other nutrients that are harmful in high amounts. (healthpert.com)
  • There are a lot of studies showing that this type of iron is very harmful to humans. (healthpert.com)
  • 2 By penetrating the silica gel to access and pry apart hard layers, fungal hyphae rapidly expose new iron sources. (icr.org)
  • Iron is a crucial nutrient for human health and development. (healthpert.com)
  • helpAdChoicesPublishersLegalTermsPrivacyCopyrightSocial effects and pages throughout the High Iron Mungbean Recipes keep you like effort' with Chef and the crucial postgraduate way. (edgar-schueller.de)
  • In recent years specialists have also come from radiology, as dual PET/CT (positron emission tomography with computerized tomography) procedures have become established, increasing the role of accelerators in radioisotope production. (world-nuclear.org)
  • The Geology study authors wrote, 'The stronger siderophore production detected in Exp-mixP [fungus-mineral interface], together with the unaffected Fe [iron] distribution below the culture-mineral interface, thus strongly suggest that the cell-promoted dissolution of lizardite (containing ~4.6% Fe 2 O 3 ) is intended for Fe extraction. (icr.org)
  • The radioisotope production is modeled using two different Monte Carlo codes (MCNPX and PHITS) and a stand-alone inventory calculation code FISPACT-II, with different cross section data libraries. (bvsalud.org)
  • While iron is vital to the human body , too much isn't good for you. (healthpert.com)
  • Iron supplements are useful to replenish the iron levels in your body. (healthpert.com)
  • A lack of iron is one of the most common causes of anemia, which occurs when the body does not produce enough red blood cells . (healthpert.com)
  • A ferrous sulfate is a form of iron that's rethat'sabsorbed by the body . (healthpert.com)
  • Hand, E. Iron-eating fungus disintegrates rocks with acid and cellular knives . (icr.org)
  • Constraints of radioisotopes have led to the development of non-radioactive alternatives. (researchsquare.com)
  • The progenitor of a supernova (left) - a massive star at least 12 times heavier as our Sun - produced, during several stages of its development, heavier elements up to iron. (psi.ch)
  • Radioisotopes are an essential part of medical diagnostic procedures. (world-nuclear.org)
  • In each panel, the left halves represent the materials used in the model: gabbroic anorthosite (pale green), dunite (blue), and iron (orange) represent the lunar crust, mantle, and core, respectively. (centauri-dreams.org)
  • The first procedures were based on two methods of non-specific marking of LN vmacrophages using a radioisotope ( 99m Tc) and a blue dye (BD, Isosulfan, Patent or Methylene). (medscape.com)
  • General Rules lists more High Iron Mungbean about working authentic secrets, English reasons, etc. (edgar-schueller.de)
  • Iron oxides have substantial effects on biochemical processes when coupled to organic matter degradation, due to their redox reactivity and ubiquitous presence in aquatic sediments. (helen-huang.org)
  • iron from plants, iron from animals, and iron from synthetic sources. (healthpert.com)
  • While it's ait'stter than iron from other sources, it's stilit'st ideal-synthetic hairstylist's worst source of iron. (healthpert.com)
  • A radioisotope of one of these elements, americium-241, is an ingredient of household smoke detectors. (llnl.gov)
  • The most important distinction is between the types of iron found in food and those in supplements . (healthpert.com)
  • While it is important to get enough iron, too much iron can be harmful. (healthpert.com)
  • This graph shows the total number of publications written about "Radioisotopes" by people in this website by year, and whether "Radioisotopes" was a major or minor topic of these publications. (musc.edu)
  • Experimental results are compared with theoretical predictions of the developed models, showing that inaccuracies in the available cross section libraries prevent an accurate reproduction of the generated radioisotope activities. (bvsalud.org)
  • The best way to take an iron supplement is as a food source. (healthpert.com)
  • Iron, scratched, the greater the stability of the complex ion formed. (shotgame.online)
  • Below are the most recent publications written about "Radioisotopes" by people in Profiles. (musc.edu)
  • Iron deficiencies can lead to anemia, which can cause fatigue and other symptoms . (healthpert.com)
  • Always protect the lead element - If you're about to cross the road, don't let everyone cross en masse. (meprepper.com)