A member of the alkali metals. It has an atomic symbol Cs, atomic number 50, and atomic weight 132.91. Cesium has many industrial applications, including the construction of atomic clocks based on its atomic vibrational frequency.
Unstable isotopes of cesium that decay or disintegrate emitting radiation. Cs atoms with atomic weights of 123, 125-132, and 134-145 are radioactive cesium isotopes.
Stable cesium atoms that have the same atomic number as the element cesium, but differ in atomic weight. Cs-133 is a naturally occurring isotope.
Pollutants, present in water or bodies of water, which exhibit radioactivity.
Nuclear power accident that occurred following the Tohoku-Kanto earthquake of March 11, 2011 in the northern region of Japan.
Pollutants, present in soil, which exhibit radioactivity.
Separation of particles according to density by employing a gradient of varying densities. At equilibrium each particle settles in the gradient at a point equal to its density. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Facilities that convert NUCLEAR ENERGY into electrical energy.
Metals that constitute group 1(formerly group Ia) of the periodic table. They are the most strongly electropositive of the metals. Note that HYDROGEN is not considered an alkali metal even though it falls under the group 1 heading in the periodic table.
Determination of the energy distribution of gamma rays emitted by nuclei. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A number of different cardioactive glycosides obtained from Strophanthus species. OUABAIN is from S. gratus and CYMARINE from S. kombe. They are used like the digitalis glycosides.
Inorganic compounds derived from hydrochloric acid that contain the Cl- ion.
An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
The observation, either continuously or at intervals, of the levels of radiation in a given area, generally for the purpose of assuring that they have not exceeded prescribed amounts or, in case of radiation already present in the area, assuring that the levels have returned to those meeting acceptable safety standards.
An element that is an alkali metal. It has an atomic symbol Rb, atomic number 37, and atomic weight 85.47. It is used as a chemical reagent and in the manufacture of photoelectric cells.
Chemicals necessary to perform experimental and/or investigative procedures and for the preparation of drugs and other chemicals.
A technique used to separate particles according to their densities in a continuous density gradient. The sample is usually mixed with a solution of known gradient materials and subjected to centrifugation. Each particle sediments to the position at which the gradient density is equal to its own. The range of the density gradient is usually greater than that of the sample particles. It is used in purifying biological materials such as proteins, nucleic acids, organelles, and cell types.
Uncontrolled release of radioactive material from its containment. This either threatens to, or does, cause exposure to a radioactive hazard. Such an incident may occur accidentally or deliberately.
April 25th -26th, 1986 nuclear power accident that occurred at Chernobyl in the former USSR (Ukraine) located 80 miles north of Kiev.
Unstable isotopes of potassium that decay or disintegrate emitting radiation. K atoms with atomic weights 37, 38, 40, and 42-45 are radioactive potassium isotopes.
The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization).
The elements OXYGEN; POLONIUM; SELENIUM; SULFUR; and TELLURIUM; that form group 16 (formerly group VI) of the periodic table.
A rare metal element with a blue-gray appearance and atomic symbol Ge, atomic number 32, and atomic weight 72.63.
Inorganic compounds that contain barium as an integral part of the molecule.
Macrocyclic polyethers with the repeating unit of (-CH2-CH2-O)n where n is greater than 2 and some oxygens may be replaced by nitrogen, sulfur or phosphorus. These compounds are useful for coordinating CATIONS. The nomenclature uses a prefix to indicate the size of the ring and a suffix for the number of heteroatoms.
Zeolites. A group of crystalline, hydrated alkali-aluminum silicates. They occur naturally in sedimentary and volcanic rocks, altered basalts, ores, and clay deposits. Some 40 known zeolite minerals and a great number of synthetic zeolites are available commercially. (From Merck Index, 11th ed)
A superorder of CEPHALOPODS comprised of squid, cuttlefish, and their relatives. Their distinguishing feature is the modification of their fourth pair of arms into tentacles, resulting in 10 limbs.
An element in the alkali metals family. It has the atomic symbol Li, atomic number 3, and atomic weight [6.938; 6.997]. Salts of lithium are used in treating BIPOLAR DISORDER.
Viruses whose taxonomic relationships have not been established.
A form species of spore-producing CYANOBACTERIA, in the family Nostocaceae, order Nostocales. It is an important source of fixed NITROGEN in nutrient-depleted soils. When wet, it appears as a jelly-like mass.
Cell membrane glycoproteins that are selectively permeable to potassium ions. At least eight major groups of K channels exist and they are made up of dozens of different subunits.
A member of the alkali group of metals. It has the atomic symbol Na, atomic number 11, and atomic weight 23.
Gated, ion-selective glycoproteins that traverse membranes. The stimulus for ION CHANNEL GATING can be due to a variety of stimuli such as LIGANDS, a TRANSMEMBRANE POTENTIAL DIFFERENCE, mechanical deformation or through INTRACELLULAR SIGNALING PEPTIDES AND PROTEINS.
Inorganic salts of the hypothetical acid ferrocyanic acid (H4Fe(CN)6).
The material that descends to the earth or water well beyond the site of a surface or subsurface nuclear explosion. (McGraw-Hill Dictionary of Chemical and Technical Terms, 4th ed)
The measurement of the density of a material by measuring the amount of light or radiation passing through (or absorbed by) the material.
An element of the alkaline earth group of metals. It has an atomic symbol Ba, atomic number 56, and atomic weight 138. All of its acid-soluble salts are poisonous.
Inorganic binary compounds of iodine or the I- ion.
A potassium-selective ion channel blocker. (From J Gen Phys 1994;104(1):173-90)
Centrifugation using a rotating chamber of large capacity in which to separate cell organelles by density-gradient centrifugation. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Vertical transmission of hereditary characters by DNA from cytoplasmic organelles such as MITOCHONDRIA; CHLOROPLASTS; and PLASTIDS, or from PLASMIDS or viral episomal DNA.
Detection and counting of scintillations produced in a fluorescent material by ionizing radiation.
Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli.
Centrifugation with a centrifuge that develops centrifugal fields of more than 100,000 times gravity. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Process of using a rotating machine to generate centrifugal force to separate substances of different densities, remove moisture, or simulate gravitational effects. It employs a large motor-driven apparatus with a long arm, at the end of which human and animal subjects, biological specimens, or equipment can be revolved and rotated at various speeds to study gravitational effects. (From Websters, 10th ed; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Any of the covalently closed DNA molecules found in bacteria, many viruses, mitochondria, plastids, and plasmids. Small, polydisperse circular DNA's have also been observed in a number of eukaryotic organisms and are suggested to have homology with chromosomal DNA and the capacity to be inserted into, and excised from, chromosomal DNA. It is a fragment of DNA formed by a process of looping out and deletion, containing a constant region of the mu heavy chain and the 3'-part of the mu switch region. Circular DNA is a normal product of rearrangement among gene segments encoding the variable regions of immunoglobulin light and heavy chains, as well as the T-cell receptor. (Riger et al., Glossary of Genetics, 5th ed & Segen, Dictionary of Modern Medicine, 1992)
Positively charged atoms, radicals or groups of atoms which travel to the cathode or negative pole during electrolysis.
The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.
The sum of the weight of all the atoms in a molecule.
An electrophysiologic technique for studying cells, cell membranes, and occasionally isolated organelles. All patch-clamp methods rely on a very high-resistance seal between a micropipette and a membrane; the seal is usually attained by gentle suction. The four most common variants include on-cell patch, inside-out patch, outside-out patch, and whole-cell clamp. Patch-clamp methods are commonly used to voltage clamp, that is control the voltage across the membrane and measure current flow, but current-clamp methods, in which the current is controlled and the voltage is measured, are also used.

Ionic currents underlying spontaneous action potentials in isolated cerebellar Purkinje neurons. (1/1232)

Acutely dissociated cell bodies of mouse Purkinje neurons spontaneously fired action potentials at approximately 50 Hz (25 degrees C). To directly measure the ionic currents underlying spontaneous activity, we voltage-clamped the cells using prerecorded spontaneous action potentials (spike trains) as voltage commands and used ionic substitution and selective blockers to isolate individual currents. The largest current flowing during the interspike interval was tetrodotoxin-sensitive sodium current (approximately -50 pA between -65 and -60 mV). Although the neurons had large voltage-dependent calcium currents, the net current blocked by cobalt substitution for calcium was outward at all times during spike trains. Thus, the electrical effect of calcium current is apparently dominated by rapidly activated calcium-dependent potassium currents. Under current clamp, all cells continued firing spontaneously (though approximately 30% more slowly) after block of T-type calcium current by mibefradil, and most cells continued to fire after block of all calcium current by cobalt substitution. Although the neurons possessed hyperpolarization-activated cation current (Ih), little current flowed during spike trains, and block by 1 mM cesium had no effect on firing frequency. The outward potassium currents underlying the repolarization of the spikes were completely blocked by 1 mM TEA. These currents deactivated quickly (<1 msec) after each spike. We conclude that the spontaneous firing of Purkinje neuron cell bodies depends mainly on tetrodotoxin-sensitive sodium current flowing between spikes. The high firing rate is promoted by large potassium currents that repolarize the cell rapidly and deactivate quickly, thus preventing strong hyperpolarization and restoring a high input resistance for subsequent depolarization.  (+info)

Electrostatic interactions during activation of coagulation factor IX via the tissue factor pathway: effect of univalent salts. (2/1232)

Interaction between the Gla-domain of coagulation proteins and negatively charged phospholipid membranes is essential for blood coagulation reactions. The interaction is calcium-dependent and mediated both by electrostatic and hydrophobic forces. This report focuses on the electrostatic component of factor IX activation via the extrinsic pathway. Effective charges during the reaction are measured by ionic titration of activity, according to the Debye-Huckel and Gouy-Chapman models. Rates of activation decrease with ionic strength independently of the type of monovalent salt used to control ionic strength. Moreover, the effect of ionic strength decreases at concentrations of charged phospholipid approaching saturation levels, indicating that membrane charges participate directly in the ionic interaction measured. The effective charge on calcium-bound factor IX during activation on phospholipid membranes is 0.95+/-0.1. Possible sites mediating contacts between the Gla-domain and membranes are selected by geometrical criteria in several metal-bound Gla-domain structures. A pocket with a solvent opening-pore of area 24-38 A2 is found in the Gla-domain of factors IX, VII, and prothrombin. The pocket contains atoms with negative partial charges, including carboxylate oxygens from Gla residues, and has a volume of 57-114 A3, sufficient to accommodate additional calcium atoms. These studies demonstrate that electrostatic forces modify the activity coefficient of factor IX during functional interactions and suggest a conserved pocket motif as the contact site between the calcium-bound Gla-domain and charged membranes.  (+info)

Modulation of slow inactivation in human cardiac Kv1.5 channels by extra- and intracellular permeant cations. (3/1232)

1. The properties and regulation of slow inactivation by intracellular and extracellular cations in the human heart K+ channel hKv1.5 have been investigated. Extensive NH2- and COOH-terminal deletions outside the central core of transmembrane domains did not affect the degree of inactivation. 2. The voltage dependence of steady-state inactivation curves of hKv1.5 channels was unchanged in Rb+ and Cs+, compared with K+, but biexponential inactivation over 10 s was reduced from approximately 100 % of peak current in Na+ to approximately 65 % in K+, approximately 50 % in Rb+ and approximately 30 % in Cs+. This occurred as a result of a decrease in both fast and slow components of inactivation, with little change in inactivation time constants. 3. Changes in extracellular cation species and concentration (5-300 mM) had only small effects on the rates of inactivation and recovery from inactivation (tau recovery approximately 1 s). Mutation of residues at a putative regulatory site at R487 in the outer pore mouth did not affect slow inactivation or recovery from inactivation of hKv1.5, although sensitivity to extracellular TEA was conferred. 4. Symmetrical reduction of both intra- and extracellular cation concentrations accelerated and augmented both components of inactivation of K+ (Kd = 34.7 mM) and Cs+ (Kd = 20.5 mM) currents. These effects could be quantitatively accounted for by unilateral reduction of intracellular K+ (K+i) (Kd = 43.4 mM) or Cs+i with constant 135 mM external ion concentrations. 5. We conclude that inactivation and recovery from inactivation in hKv1.5 were not typically C-type in nature. However, the ion species dependence of inactivation was still closely coupled to ion permeation through the pore. Intracellular ion modulatory actions were more potent than extracellular actions, although still of relatively low affinity. These results suggest the presence of ion binding sites capable of regulating inactivation located on both intracellular and extracellular sides of the pore selectivity filter.  (+info)

Gating current studies reveal both intra- and extracellular cation modulation of K+ channel deactivation. (4/1232)

1. The presence of permeant ions can modulate the rate of gating charge return in wild-type human heart K+ (hKv1.5) channels. Here we employ gating current measurements in a non-conducting mutant, W472F, of the hKv1.5 channel to investigate how different cations can modulate charge return and whether the actions can be specifically localized at the internal as well as the external mouth of the channel pore. 2. Intracellular cations were effective at accelerating charge return in the sequence Cs+ > Rb+ > K+ > Na+ > NMG+. Extracellular cations accelerated charge return with the selectivity sequence Cs+ > Rb+ > Na+ = NMG+. 3. Intracellular and extracellular cation actions were of relatively low affinity. The Kd for preventing slowing of the time constant of the off-gating current decay (tau off) was 20.2 mM for intracellular Cs+ (Cs+i) and 358 mM for extracellular Cs+ (Cs+o). 4. Both intracellular and extracellular cations can regulate the rate of charge return during deactivation of hKv1.5, but intracellular cations are more effective. We suggest that ion crystal radius is an important determinant of this action, with larger ions preventing slowing more effectively. Important parallels exist with cation-dependent modulation of slow inactivation of ionic currents in this channel. However, further experiments are required to understand the exact relationship between acceleration of charge return and the slowing of inactivation of ionic currents by cations.  (+info)

Kir2.1 encodes the inward rectifier potassium channel in rat arterial smooth muscle cells. (5/1232)

1. The molecular nature of the strong inward rectifier K+ channel in vascular smooth muscle was explored by using isolated cell RT-PCR, cDNA cloning and expression techniques. 2. RT-PCR of RNA from single smooth muscle cells of rat cerebral (basilar), coronary and mesenteric arteries revealed transcripts for Kir2.1. Transcripts for Kir2.2 and Kir2.3 were not found. 3. Quantitative PCR analysis revealed significant differences in transcript levels of Kir2.1 between the different vascular preparations (n = 3; P < 0.05). A two-fold difference was detected between Kir2.1 mRNA and beta-actin mRNA in coronary arteries when compared with relative levels measured in mesenteric and basilar preparations. 4. Kir2.1 was cloned from rat mesenteric vascular smooth muscle cells and expressed in Xenopus oocytes. Currents were strongly inwardly rectifying and selective for K+. 5. The effect of extracellular Ba2+, Ca2+, Mg2+ and Cs2+ ions on cloned Kir2.1 channels expressed in Xenopus oocytes was examined. Ba2+ and Cs+ block were steeply voltage dependent, whereas block by external Ca2+ and Mg2+ exhibited little voltage dependence. The apparent half-block constants and voltage dependences for Ba2+, Cs+, Ca2+ and Mg2+ were very similar for inward rectifier K+ currents from native cells and cloned Kir2.1 channels expressed in oocytes. 6. Molecular studies demonstrate that Kir2.1 is the only member of the Kir2 channel subfamily present in vascular arterial smooth muscle cells. Expression of cloned Kir2.1 in Xenopus oocytes resulted in inward rectifier K+ currents that strongly resemble those that are observed in native vascular arterial smooth muscle cells. We conclude that Kir2.1 encodes for inward rectifier K+ channels in arterial smooth muscle.  (+info)

Properties and functional roles of hyperpolarization-gated currents in guinea-pig retinal rods. (6/1232)

1. The inward rectification induced by membrane hyperpolarization was studied in adult guinea-pig rods by the perforated-patch-clamp technique. 2. CsCl blocked the rectification observed in both voltage- and current-clamp recordings at voltages negative to -60 mV, while BaCl2 blocked the inward relaxation observed at voltages positive to -60 mV. The current activated at -90 mV had a low selectivity between sodium and potassium and reversed at -31.0 mV. 3. These observations suggest that two inward rectifiers are present in guinea-pig rods: a hyperpolarization-activated (Ih) and a hyperpolarization-deactivated (Ikx) current. The functional roles of Ih and Ikx were evaluated by stimulating rods with currents sinusoidally modulated in time. 4. Rods behave like bandpass amplifiers, with a peak amplification of 1.5 at about 2 Hz. For hyperpolarizations that mainly gate Ikx, amplification and phase shifts are fully accounted for by a rod membrane analogue model that includes an inductance. For hyperpolarizations that also gate Ih, a harmonic distortion became apparent. 5. Bandpass filtering and amplification of rod signals, associated with Ih and Ikx gating by membrane hyperpolarization, are strategically located to extend, beyond the limits imposed by the slow phototransductive cascade, the temporal resolution of signals spreading to the rod synapse.  (+info)

Mechanisms of delta-hexachlorocyclohexane toxicity: II. Evidence for Ca2+-dependent K+-selective ionophore activity. (7/1232)

delta-Hexachlorocyclohexane (delta-HCH) interacts with cardiac ryanodine-sensitive Ca2+ channels (RyR2), accounting in part for altered Ca2+ transients and contractility (reported in companion report). Analysis of channel gating kinetics in the presence of delta-HCH also revealed a nonfluctuating membrane current that remained even after RyR2 channels were blocked. We further elucidated the nature of a direct interaction between delta-HCH and biological membranes by measuring ionic currents across planar lipid bilayers made from defined lipids lacking cellular protein using voltage-clamp. Dimethyl sulfoxide, in the presence or absence of 50 microM gamma-HCH (lindane) or delta-HCH, produced negligible steady-state current with symmetric 100 mM CsCl in the range of +/-50 mV. However, the addition of 50 microM Ca2+ to the bilayer chamber in the presence of delta-HCH induced a profound increase in ionic permeability that was not seen in the presence of gamma-HCH or dimethyl sulfoxide control. Significantly, the permeability increase 1) was proportional with increasing Ca2+ to approximately 600 microM and saturated between 1 and 2 mM Ca2+ regardless of holding potential, 2) occurred only when delta-HCH and Ca2+ were added to the same side of the membrane, and 3) was independent of the order of addition or of the side of the membrane to which delta-HCH and Ca2+ was added. The Ca2+-dependent current produced by delta-HCH was highly selective for monovalent cations (K+ >> Cs+ > Na+), with negligible conductance for Ca2+ or Cl-. In symmetric 100 mM K+, the conductance induced with 50 microM concentration each of delta-HCH and Ca2+ was 4.25 pA/mV. The results show that delta-HCH increases the ionic permeability of phospholipid membranes by two distinct Ca2+-dependent mechanisms: one mediated through RyR and the other mediated by a unique ionophore activity.  (+info)

Coordinate regulation of gonadotropin-releasing hormone neuronal firing patterns by cytosolic calcium and store depletion. (8/1232)

Elevation of cytosolic free Ca2+ concentration ([Ca2+]i) in excitable cells often acts as a negative feedback signal on firing of action potentials and the associated voltage-gated Ca2+ influx. Increased [Ca2+]i stimulates Ca2+-sensitive K+ channels (IK-Ca), and this, in turn, hyperpolarizes the cell and inhibits Ca2+ influx. However, in some cells expressing IK-Ca the elevation in [Ca2+]i by depletion of intracellular stores facilitates voltage-gated Ca2+ influx. This phenomenon was studied in hypothalamic GT1 neuronal cells during store depletion caused by activation of gonadotropin-releasing hormone (GnRH) receptors and inhibition of endoplasmic reticulum (Ca2+)ATPase with thapsigargin. GnRH induced a rapid spike increase in [Ca2+]i accompanied by transient hyperpolarization, followed by a sustained [Ca2+]i plateau during which the depolarized cells fired with higher frequency. The transient hyperpolarization was caused by the initial spike in [Ca2+]i and was mediated by apamin-sensitive IK-Ca channels, which also were operative during the subsequent depolarization phase. Agonist-induced depolarization and increased firing were independent of [Ca2+]i and were not mediated by inhibition of K+ current, but by facilitation of a voltage-insensitive, Ca2+-conducting inward current. Store depletion by thapsigargin also activated this inward depolarizing current and increased the firing frequency. Thus, the pattern of firing in GT1 neurons is regulated coordinately by apamin-sensitive SK current and store depletion-activated Ca2+ current. This dual control of pacemaker activity facilitates voltage-gated Ca2+ influx at elevated [Ca2+]i levels, but also protects cells from Ca2+ overload. This process may also provide a general mechanism for the integration of voltage-gated Ca2+ influx into receptor-controlled Ca2+ mobilization.  (+info)

Adenovirus are efficient gene delivery systems. The standard method for purification of adenoviral vectors is based on using a cesium chloride (CsCl) density gradient combined with ultracentrifugation. This method is suitable for small-scale purification and is less expensive than column chromatography or commercial purification kits.
Nonradioactive caesium compounds are only mildly toxic, and nonradioactive caesium is not a significant environmental hazard. Because biochemical processes can confuse and substitute caesium with potassium, excess caesium can lead to hypokalemia, arrhythmia, and acute cardiac arrest.[109] But such amounts would not ordinarily be encountered in natural sources.[110] The median lethal dose (LD50) for caesium chloride in mice is 2.3 g per kilogram, which is comparable to the LD50 values of potassium chloride and sodium chloride.[111] The principal use of nonradioactive caesium is as caesium formate in petroleum drilling fluids because it is much less toxic than alternatives, though it is more costly.[73] Caesium metal is one of the most reactive elements and is highly explosive in the presence of water. The hydrogen gas produced by the reaction is heated by the thermal energy released at the same time, causing ignition and a violent explosion. This can occur with other alkali metals, but caesium is ...
The ionic compound cesium chloride adopts a cubic crystal structure bearing the same name. However, ab initio electronic structure calculations based on density functional theory methods using generalized gradient approximation functionals do not predict that cesium chloride adopts this phase. In this paper we apply semiempirical methods (density functional theory plus a pairwise dispersion correction) to account for missing van der Waals interactions within cesium chloride. The C6 and R0 dispersion parameters for cesium are established within Grimmes DFT+D2 formalism. Inclusion of the dispersion corrections is found not only to improve the quality of structures in comparison to experiment for all cesium halides, but also leads to the correct prediction of the ground-state phase under ambient conditions.. ...
Caesium acetate or cesium acetate is an ionic caesium compound with the molecular formula CH3CO2Cs. It is often used in organic synthesis especially in Perkin synthesis: the formation of unsaturated cinnamic-type acids by the condensation of aromatic aldehydes with fatty acids.[3] It may be formed by the reaction of caesium hydroxide or caesium carbonate with acetic acid. Caesium acetate is occasionally used instead of caesium formate in petroleum drilling fluids.[citation needed] ...
Cesium chloride, White powder/crystalline/beads, 99.99% (Metals basis), Alfa Aesar™ 50g Cesium chloride, White powder/crystalline/beads, 99.99% (Metals basis),...
This Digitalglobe Cesium.js example demonstrates how to create stunning 3D renditions of our world. Cesium is a JavaScript library for creating 3D globes and 2D maps in a web browser without a plugin. The Cesium Content Server provides a conduit to stream 3D content, such as terrain, into Cesium. The web-optimized, open-formatted services provide a content source for any Cesium application. DigitalGlobe combines resolution, accuracy, global coverage and experience to provide high-resolution Earth satellite imagery, data and analysis ...
The amount of dissolved Cesium tetrafluoroaluminate was calculated by: Considering aluminium and cesium: Amount of aluminium in test item = 10.2 % Amount of cesium in test item = 57.7 % Amount of aluminium and cesium = 67.7 % Purity of the test item = 98.2 % Mean concentration of aluminium and cesium added: Vessel 1: 13.2 ± 0.08 g/L Vessel 1: 13.2 ± 0.12 g/L With this concentrations the dissolved test item was calculated: Mean of concentration x 98.2 % / 67.7 %: Vessel 1: 19.1 ± 0.12 g/L Vessel 2: 19.1 ± 0.17 g/L Mean: 19.1 ± 0.14 g/L ...
Definition of cesium in the Financial Dictionary - by Free online English dictionary and encyclopedia. What is cesium? Meaning of cesium as a finance term. What does cesium mean in finance?
There has been a lot of talk about cesium chloride for the treatment of cancer. I have not seen any proof of effectiveness, and no talk about the dangers, including death. So I am going to address these here. As for effectiveness it has been claimed to be highly effective against all cancers. So how do they explain this study? Zero efficacy with cesium chloride self-treatment for brain cancer Samadani U, Marcotte P. Mayo Clin Proc. 2004 Dec;79(12):1588 Safety is also a big concern as the side effects can not only be very dangerous, but deat ...
cesium number of protons - 28 images - cesium, elements05 cesium, ppt, particle physics how come neutrons in a nucleus don t, flw incorporated specialists in physical measurement
Cesium nitrate, 99.99% (metals basis), Alfa Aesar™ 500g Cesium nitrate, 99.99% (metals basis), Alfa Aesar™ Inorganic Cesium Compounds
Ive been doing the liquid ionic cesium chloride protocol for 4 months. This one calls for 3 grams a day of the cesium, along with about half that much daily potassium. I also wondered about the rate of response compared to what I read online, but then realized most of what I read referenced a dose of 6 or 9 grams daily, meant to be taken for a .... [Chat Online] ...
Molecular Cloning, also known as Maniatis, has served as the foundation of technical expertise in labs worldwide for 30 years. No other manual has been so popular, or so influential.
The use of cesium salts as an alternative or natural treatment for cancer is based on the unproven theory that somehow they raise the pH inside neoplastic cells, damaging them. Advocates of cesium believe that the low incidence of cancer seen in the Hunza tribe of North Pakistan can be attributed to a diet high in cesium. These claims have never been tested. Unfortunately, the adverse effects caused by cesium have been well demonstrated both clinically and in the laboratory, and are all too real.. Cesium (atomic number 55) is an alkali metal with an ionic charge of +1. It appears on the periodic table in the same column as sodium and potassium. When ingested, it is absorbed in the small intestine and distributed throughout the body as if it were potassium. Manifestations of cesium toxicity include diarrhea, hypo-kalemia, and cardiac arrhythmia. Cesium blocks potassium re-entry into the myocardial cell during phase 3 of the action potential, delaying repolarization and prolonging the QT ...
High pH Therapy using cesium chloride requires following an alkaline style diet along with a daily supplement protocol. The Budwig Diet is very similar in many ways to an alkaline diet and can be used interchangeably when following the High pH protocol. The Budwig Diet and cesium chloride work well together. • The Original Budwig…
In most of these reactions, the higher solubility of cesium acetate compared to the insoluble incumbents CsF or CsCO3 which only work best at elevated reaction temperature) facilitates the chemistries to proceed at much lower reaction temperatures. Reduced reaction temperatures widens the reaction scope to volatile shorter chain acid and amine reactants that would rather decompose at elevated reaction temperatures. In other high-tech applications, researchers established that alloying Cs⁺ into hybrid lead halide perovskites generates a path to long-term perovskites stability critical to the implementation in solar cells (See: Laura Piveteau, et. al., Bulk and Nanocrystalline Cesium Lead-Halide Perovskites as Seen by Halide Magnetic Resonance, ACS Cent. Sci. 2020, 6, 7, 1138-1149). In these applications, cesium acetate is proving to be a more versatile cesium precursor, again replacing cesium carbonate as a more soluble (easier to work with) cesium source in the fabrication of cesium lead ...
High pH Therapy is based on the ready uptake of cesium chloride by cancer cells, and is aimed at depriving the cell of glucose while supporting the body with antioxidants and other nutrients.
Learn more about Cesium chloride. We enable science by offering product choice, services, process excellence and our people make it happen.
The FTS 4100 is a self-contained module that is designed to be part of a larger system. It has the same cesium beam tube and electronics as other older (e.g., model 4050) FTS cesium standards, but no metering or other than the bare minimum of controls. Here is some performance information for FTS 4100 SN 172 measured against a Z3801A GPSDO for 14 days. ...
Cesium has applications in vacuum tubes, atomic clocks, petroleum exploration and electronics. The diversity of uses for cesium are a result of its high number of isotopes, the most of any element....
On Sat, Mar 18, 2017 at 2:48 AM, ,cdelect at juno.com, wrote: , Looks like Oscilloquartz is getting ready to sell this commercially! http://www.chronos.co.uk/files/pdfs/itsf/2015/day2/1410_High_performance_optically-pumped_cesium_beam_clock-PBerthoud-Oscilloquartz.pdf Two year old deck with a fair amount of overlap, though a few more engineering diagrams. Heres to hoping they fit it with an unreliable LCD backlight so theyll be available as cosmetically defective cheap surplus in the future ...
Bentley Systems joins Analytical Graphics Inc. (AGI), the creators of Cesium, to accelerate open-source development for Cesiums virtual globe technology
You are about to download CAESIUM 1.0.3.8 Latest APK for Android, CAESIUM is a single player CYBER-PUNK SurvivalFirst Person Shooter, designed for Mobile Devices. CAESIUM...
Cesium acetate | CH3COOCs or C2H3CsO2 | CID 5152919 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Effective April 12, 2017, or as contracts allow, Cabot Corporation will increase prices by up to 18 percent for its fine cesium chemicals product port
I had cervical cancer 27 years ago and had cesium implants placed in my stomach. The implants are now leaking into my stomach causing horrendous pain. The doctors can not offer me any more pain relief than what I am on and don t seem to be able to offer any alternative treatment for me. Is there any one else that has had this kind of treatment that would be willing to discuss this with me there may be some treatment that my doctor has missed or just to chat in general . Thanks for taking the time to read this. ...
Javascript & XML Projects for $250 - $750. I need someone to convert a Collada (DAE, LODTreeExport) to Cesium 3D tiles. http://cesiumjs.org/2015/08/10/introducing-3d-tiles/...
Thanks to the atomic coherence in the coupling-laser-driven atomic system, sub-Doppler absorption has been observed in Doppler-broadened cesium vapor cell via the Λ-type three-level scheme. The linew
Little more than two months ago, I reported on the pending sale of Americaâ??s world monopoly in cesium, a Trump Administration-designated critical mineral, to China (Mercenary Musing, April 22, 2019).
VERY IMPORTANT TO READ THIS LINK BELOW (DEAL WITH BRAIN CANCERS AND MORE): http://www.cancertutor.com/Cancer/Alkaline.html
The CSV is a delimited data format that has fields/columns separated by the semicolon character and records/rows separated by newlines. Fields that may contain a special character (semicolon, newline, or double quote), are enclosed in double quotes. For an easier handling, the list of Pre-registered substances is available in four parts ordered by EC number. They contain the same information as the following full list.. ...
Question 10: [10] It has been regarded as the strongest base, but in reality, many compounds that are not classic hydroxide bases such as n-butyllithium and ________ are stronger, and are destroyed by water. ...
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Hi Mark, Im in Pittwater and sail a Couta boat.. As far as I can see my tracks are for public consumption, so if you search for boat name Cariad or me James George you should see several races.. Im beginning to think it is a problem with Cesium. Originally the Hello World test worked but now it doesnt.. But I can find no simple way to load Cesium on my Mac.. Let me know what you find.. James. ...
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I have DNA that has been purified through cesium chloride preparation and have been using it for transfections and not getting good efficiency--we think there may be a problem with the DNA (maybe excess ethanol was left) and would like to take some of this already purified DNA and re-ethanol precipitate it and dry it exceptionally well to prevent excess ethanol from remainig this time...what is a good protocol to use to re-ethanol precipitate the DNA ...
Nitrile is the most cost effective and commonly available O ring material. Ideal for use as seals for pumps, drive belts, and other general engineering applications in the hydraulic and pneumatic industry. NBR is good for applications where the O-ring is
Browse many computed properties for this tetragonal Cs(FeSb)2 compound, including formation energy from the elements, energy of decomposition into the set of most stable materials at this chemical composition, bulk crystalline density, and band gap. Also known as: Cesium iron antimonide (1/2/2). Cite this material using DOI 10.17188/1188592.
The carbonyl-ruthenium substituted undecatungstosilicate [α-SiW11O39RuII(CO)]6− (1) was isolated as a caesium salt and successfully characterized by using 183W and 13C NMR, elemental analysis, IR, UV-vis and cyclic voltammetry (CV). Polyanion 1 represents the first example of a metal-carbonyl moiety being fu
Caesium (or cesium) is the chemical element with the atomic number 55 on the periodic table. Its symbol is Cs. Caesium is an alkali metal. Its melting point is low (28 °C). It is extremely reactive. Because of its high reactivity, it is a dangerous chemical. It may set itself on fire (ignite) in air. It explodes on contact with water. It reacts more violently than the other alkali metals with water. Because of this, caesium is stored in mineral oil.[6] Caesium is a rare element. Since there is little caesium on the Earth, it is rather expensive. The human body does not need caesium. In large amounts, its chemical compounds are mildly poisonous because it is close to potassium, which the body does need. ...
Cesium: Natures premier body alkalizer. Cesium, the most electropositive and least abundant of the five naturally occurring alkali metals, was discovered spectroscopically in 1860. The first cesium metal was produced in 1881. Historically, the most important use for cesium has been in research and development. There are a number of areas of the world where the incidence of cancer is very low. The authors have been able to collect information on the chemical composition of food in these low incidence areas. In every case, the cesium content has been found to be very high. In addition, the diet has been found to be high in the supportive compounds i.e. vitamin C, vitamin A, zinc and selenium. It seems apparent therefore, that the composition of foods and the diet eaten in these areas are similar to the nutritive requirements for the high pH therapy.. Dr. Otto Warburg published a Nobel Prize winning paper over 75 years ago describing the environment of the cancer cell. A normal cell undergoes an ...
ˈsiːziəm/ SEE-zee-əm) is the chemical element with the symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal with a melting point of 28 °C (82 °F), which makes it one of only five elemental metals that are liquid at (or near) room temperature.[note 2] Caesium is an alkali metal and has physical and chemical properties similar to those of rubidium and potassium. The metal is extremely reactive and pyrophoric, reacting with water even at −116 °C (−177 °F). It is the least electronegative element that has stable isotopes, of which it has only one, caesium-133. Caesium is mined mostly from pollucite, while the radioisotopes, especially caesium-137, are extracted from waste produced by nuclear reactors.. Two German chemists, Robert Bunsen and Gustav Kirchhoff, discovered caesium in 1860 by the newly developed method of flame spectroscopy. The first small-scale applications for caesium have been as a getter in vacuum tubes and in photoelectric cells. In 1967, a specific ...
Video articles in JoVE about centrifugation density gradient include Characterization and Isolation of Mouse Primary Microglia by Density Gradient Centrifugation, DNA Extraction from 0.22 μM Sterivex Filters and Cesium Chloride Density Gradient Centrifugation, Protocol for Isolation of Primary Human Hepatocytes and Corresponding Major Populations of Non-parenchymal Liver Cells, A New Approach for the Comparative Analysis of Multiprotein Complexes Based on 15N Metabolic Labeling and Quantitative Mass Spectrometry, Isolation of Intact Mitochondria from Skeletal Muscle by Differential Centrifugation for High-resolution Respirometry Measurements, Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol, Isolation of Cellular Lipid Droplets: Two Purification Techniques Starting from Yeast Cells and Human Placentas, Cloning and Large-Scale Production of High-Capacity Adenoviral Vectors Based on the Human
The particularities of cesium incorporation into synthetic calcium phosphates with either apatite or whitlockite-type structures were investigated using the sorption process from aqueous solution and further heating to 700 °C. The nanoparticles for sorption were prepared by wet precipitation from aqueous solutions at a fixed molar ratio of Ca/P = 1.67 and two different ratios of CO32−/PO43− (0 or 1). The obtained substituted calcium phosphates and corresponding samples after the sorption of cesium from solutions with different molar concentrations (c(Cs+) = 0.05, 0.1 and 0.25 mol L−1) were characterized by powder X-ray diffraction, FTIR spectroscopy, scanning electron microscopy and elemental analysis. Based on the combination of X-ray diffraction and elemental analyses data for the powders after sorption, the cesium incorporated in the apatite- or whitlockite-type structures and its amount increased with its concentration in the initial solution. For sodium-containing calcium phosphate even
Get information, facts, and pictures about cesium at Encyclopedia.com. Make research projects and school reports about cesium easy with credible articles from our FREE, online encyclopedia and dictionary.
The pH Therapy Basic Package 1 with Cesium Chloride and Potassium is designed to be used in conjunction with an alkalizing diet and lifestyle change.
TRIVENI INTERCHEM PVT. LTD. - Exporter, Manufacturer, Distributor, Supplier, Trading Company of Caesium lithium borate based in Vapi, India
Chemical mechanical polishing compositions including an abrasive and cesium hydroxide and methods for polishing dielectric layers associated with integrated circuits using cesium hydroxide containing polishing compositions.
TEPCO said July 10 that 33,000 becquerels of cesium levels per liter, compared to 309 becquerels on July 5, were detected in water samples collected on July 9 from a well on the seaward side of the No. 2 reactor building. The figure means that cesium levels increased by an additional 20 percent from 27,000 becquerels measured a day earlier. It is the highest level found since the onset of the March 2011 nuclear disaster. ‎· silpol ...
Cesium as Alkali Promoter in Me-Cs Me = Cu, Co, Fe- Al2O3 Structured Catalysts for the Simultaneous Removal of Soot and NOx. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
Herein we report a robust and easy method for detecting cesium metal ion (Cs+) in partially aqueous solutions using the fluorescence quenching of 2,4-bis[4-(N,N-dihydroxyethylamino)phenyl]squaraine. This squaraine dye was found to be both highly sensitive (low limits of detection) and selective (limited resp
Here, we demonstrate the successful synthesis of brightly emitting colloidal cesium lead halide (CsPbX3, X = Cl, Br, I) nanowires (NWs) with uniform diameters and tunable compositions. By using highly monodisperse CsPbBr3 NWs as templates, the NW composition can be independently controlled through anion-exchange reactions. CsPbX3 alloy NWs with a wide range of alloy compositions can be achieved with well-preserved morphology and crystal structure. The NWs are highly luminescent with photoluminescence quantum yields (PLQY) ranging from 20% to 80%. The bright photoluminescence can be tuned over nearly the entire visible spectrum. The high PLQYs together with charge transport measurements exemplify the efficient alloying of the anionic sublattice in a one-dimensional CsPbX3 system. The wires increased functionality in the form of fast photoresponse rates and the low defect density suggest CsPbX3 NWs as prospective materials for optoelectronic applications.
The present work deals with the recent advances of atomic spectroscopy experiments on cesium and francium, which aim at precise parity violation (PV) measurements in these atoms. Within the framework of a
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Read Cesium carbonate as a mediated inorganic base in some organic transformations, Research on Chemical Intermediates on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Methods 1. MSCs of rabbit were isolated from the posterior iliac crest of rabbit and were used from passages 2 to 4. 2. The self-inactivating HIV1-based lentiviral vector (LentiV) was used as transgene delivery, which was constructed with plasmid hHCN4/pcDNA3. 3. Total RNA was extracted from control MSCs and those transfected with hHCN4, and RT-PCR was performed. 4. Membrane proteins were extracted from control MSCs and those transfected with hHCN4. Western blot analysis was performed. 5. Whole-cell patch clamp was used to study membrane currents. After the If was recorded, cells were superfused with extracellular solution containing 4 mM caesium chloride and the currents were measured accordingly. 6. MSCs transfected with either GFP alone or GFP-hHCN4 were cocultured with neonatal rabbit ventricular myocytes. The coculture beating rate of cardiac myocytes was measured after 3 days of coculture.. ...
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Two macro-cyclic compounds viz. calix-benzo-crown (CBC) and calix-crown-6 (CC6) has been synthesized indigenously at large scale for selective separtion of ces...
Cesium Lead Bromide (CsPbBr3) merupakan material perovskite alkali halida yang bersifat semikonduktor. Tujuan dari penelitian ini adalah untuk membuat material CsPbBr3 dengan metode one step solution dan mengkarakterisasi ...
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Caesium chloride (cubic 8:8)[edit]. At high temperature and pressure, RbCl adopts the caesium chloride (CsCl) structure (NaCl ... Caesium chloride. Francium chloride Except where otherwise noted, data are given for materials in their standard state (at 25 ° ...
has used their Cesium platform to build a 3D map for visualizing Santa's location with more accurate global terrain and ... Moore, Vanessa (December 5, 2017). "NORAD Santa Tracker Technology through the Years". Cesium. Retrieved December 21, 2017. " ...
"Princeton University Brings Historical Context to International Crises with Cesium". Cesium. Official website LISD on Facebook ...
2008 (March 14-16) Assemblage 23 , The Azoic , Cesium 137) , Ego Likeness , Iris , Seabound , Zombie Girl , ... DJs: Ian Fford ... Cesium 137) , Razed In Black , Decoded Feedback , Iris , Bella Morte , Dismantled , Voltaire , Ego Likeness , Carfax Abbey , ...
"Moving GEFS Online from Google Earth to Cesium". Cesium Blog. "A galaxy of your own". Google-latlong.blogspot.com. September 30 ...
"Cesium Chloride". Memorial Sloan-Kettering Cancer Center. 3 May 2012. Melnikov, P; Zanoni, LZ (June 2010). "Clinical effects of ... Caesium chloride - a toxic salt, promoted as a cancer cure (sometimes as "high pH therapy"), on the basis that it targets ... cesium intake". Biological Trace Element Research. 135 (1-3): 1-9. doi:10.1007/s12011-009-8486-7. PMID 19655100. S2CID 19186683 ...
On the chip, liquid metal cesium in a tiny capsule is heated to vaporize the cesium. A laser shines a beam of infrared light ... Like other cesium clocks the watch keeps time with an ultraprecise 9.192631770 GHz microwave signal produced by electron ... The breakthrough that allowed a rack-sized cesium clock to be shrunk small enough to fit on a chip was a technique called ... When the oscillator is at the precise frequency of the transition, the cesium atoms absorb the light, reducing the output of ...
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"Moving GEFS Online from Google Earth to Cesium". Cesium Blog. • GeoFS Official Twitter v t e. ... GeoFS is a multi-platform amateur flight simulator based on the Cesium WebGL Virtual Globe. The free map is based on images ...
... and caesium. Spectral lines also depend on the physical conditions of the gas, so they are widely used to determine the ...
Cesium. USAF. EOS. Suborbital, experimental test (4 min operation) Snapshot. 3 Apr 1965. Ion engine. 1. Cesium. USAF/Army. EOS ... Cesium. USAF/NASA. EOS. Experimental SERT 2. 3 Feb 1970. Ion engine. 2. Mercury. NASA. NASA/Westinghouse. (Experimental), ... Cesium. USAF. EOS. Suborbital, experimental test (19 min operation) Zond 2. 30 Nov 1964. 14 May 1965. Pulsed plasma thruster. ... Cesium. NASA. EOS. Experimental 92 hours operation Meteor-Priroda 1 (Meteor 1-18). 9 Jul 1974. Hall effect thruster. 2. SPT-60 ...
Some of these elements are thought to be simple bystander contaminants without function (examples: caesium, titanium), while ...
Caesium compounds are rarely encountered by most people, but most caesium compounds are mildly toxic. Like rubidium, caesium ... Caesium-137 has been used as a tracer in hydrologic studies, analogous to the use of tritium. Small amounts of caesium-134 and ... Rubidium and caesium are often used in atomic clocks. Caesium atomic clocks are extraordinarily accurate; if a clock had been ... As such, caesium is not a major chemical environmental pollutant. The median lethal dose (LD50) value for caesium chloride in ...
In no case were the rubidium and caesium reactions nearly as violent or explosive as depicted on Brainiac. An earlier and more ... Caesium. The Periodic Table of Videos. "Alkali metals". OpenLearn. JGrantMedia.com Archived 4 October 2008 at the Wayback ... Similar experiments with caesium or rubidium have been repeated; these include Popular Science columnist Theodore Gray's ... According to Tom Pringle, Brainiac's "Dr Bunhead", very little occurred in the real reaction of caesium and water, as the large ...
Caesium hydroxide. Lithium hydroxide. Potassium hydroxide. Rubidium hydroxide Except where otherwise noted, data are given for ...
At 315 °C and 1 atm, rubidium azide will transition to the normal cesium chloride structure. The II/I transition temperature of ... At room temperature, rubidium azide has the same structure as potassium hydrogen fluoride; a distorted cesium chloride ... Cesium and Francium: Pergamon Texts in Inorganic Chemistry. Online: Pergamon Press. p. 438. ISBN 9781483187570. Retrieved 31 ...
"Caesium Beam Atomic Clock". The Government of the Hong Kong Special Administrative Region. Retrieved 2013-02-14. "History of ... Lee, Ho Seong; Kwon, Taeg Yong; Park, Sang Eon; Choi, Sang-Kyung; Park, Young-Ho (August 2004). "Research on Cesium Atomic ... Newman, Michael E. (1999-12-29). "NIST-F1 Cesium Fountain Clock". NIST News. The National Institute of Standards and Technology ... Takamizawa, A.; Yanagimachi, S.; Shirakawa, Y.; Watabe, K.; Hagimoto, K.; Ikegami, T., "Cesium Atomic Fountain Clocks at NMIJ ...
20 to 40% of all core caesium-137 was released, 85 PBq in all. Caesium was released in aerosol form; caesium-137, along with ... The four most harmful radionuclides spread from Chernobyl were iodine-131, caesium-134, caesium-137 and strontium-90, with half ... caesium and strontium. Iodine-131 was and caesium-137 remains the two most responsible for the radiation exposure received by ... 8.5×1016 Bq equals 24 kilograms of caesium-137. Cs-137 has a half-life of 30 years. Tellurium-132, half-life 78 hours, an ...
However, if caesium perchloratoborate is heated the decomposition becomes exothermic above 90 °C, and at 100 °C it explodes ... B(ClO4)3 + ClO− 4 → B(ClO 4)− 4 Caesium perchloratoborate is hydroscopic. It has a density of 2.5 g/cm3. It has no colour. ... Rosolovskii, V. Ya.; V. P. Babaeva (1971). "Some properties of cesium perchloratoborate". Bulletin of the Academy of Sciences ... Infrared absorption bands are observed in caesium perchloratoborate at 640 and 1,087 cm−1. Potassium perchloratoborate has ...
One of the atoms used is caesium, most modern atomic clocks probe caesium with microwaves to determine the frequency of these ... Cesium Atoms at Work Archived 23 February 2015 at the Wayback Machine USNO, downloaded 28 June 2016. IEC 60050-113:2011, item ... At its 1997 meeting, the CIPM affirmed that this definition refers to a caesium atom in its ground state at a temperature of 0 ... Since 1967, the International System of Measurements bases its unit of time, the second, on the properties of caesium atoms. SI ...
Moskalev YI (1961). "Biological Effects of Cesium-137". In Lebedinskiĭ AV, Moskalev YI (eds.). Distribution, Biological Effects ...
Dzuba, V. A.; Berengut, J. C.; Flambaum, V. V.; Roberts, B. (2012). "Revisiting Parity Nonconservation in Cesium". Physical ...
"55 Caesium". Elements.vanderkrogt.net. Retrieved 2008-09-12. Caesium Archived 2012-03-09 at the Wayback Machine "37 Rubidium". ...
Caesium sulfate - Cs2SO4. Ca[edit]. *Calcium bromide - CaBr2 ...
The caesium brine is converted into caesium formate which is used mostly as additive for drilling fluids to increase the ... Tanco Mine or Bernic Lake mine is an underground caesium and tantalum mine, owned and operated by Sinomine on the north west ... A concentrated solution of caesium formate has a density of 2.3 g/cm3. The mine has the largest tantalum reserves in Canada ... The mine has the largest known deposit of pollucite and is also the world's largest producer of caesium. The pegmatite ore body ...
Taft, E.; Apker, L. (1953-02-01). "Photoemission from Cesium and Rubidium Tellurides". JOSA. 43 (2): 81-83. Bibcode:1953JOSA... ... Spectral Response of Cesium Telluride and Rubidium Telluride Photocathodes for the Production of Highly Charged Electron ...
The first accurate atomic clock, a caesium standard based on a certain transition of the caesium-133 atom, was built by Louis ... Calibration of the caesium standard atomic clock was carried out by the use of the astronomical time scale ephemeris time (ET ... The cesium atomic clock, maintained by the National Institute of Standards and Technology, is accurate to 30 billionths of a ... "What is a Cesium Atomic Clock?". National Research Council Canada. Retrieved March 4, 2015. Davies, Norman; p. 435 "Julien Le ...
Schulz, L. G. (1951). "Polymorphism of cesium and thallium halides". Acta Crystallographica. 4 (6): 487-489. doi:10.1107/ ...
Both of those deposits are also sources of caesium. Although rubidium is more abundant in Earth's crust than caesium, the ... the enrichment is far less effective than that of caesium. Zone pegmatite ore bodies containing mineable quantities of caesium ... "Cesium and Rubidium Hit Market". Chemical & Engineering News. 37 (22): 50-56. 1959. doi:10.1021/cen-v037n022.p050. Kirchhoff, G ... Rubidium & Cesium/ Reactions with Oxygen Ohly, Julius (1910). "Rubidium". Analysis, detection and commercial value of the rare ...
Haynes, p. 4.94 Haynes, p. 4.135 Haynes, p. 10.242 Schulz, L. G. (1951). "Polymorphism of cesium and thallium halides". Acta ...
Stable (non-radioactive) cesium has been found in at least 10 of the 1,585 National Priority List (NPL) sites identified by the ... High levels of radioactive cesium can cause nausea, vomiting, diarrhea, bleeding, coma, and even death. This may occur after ... Environmental Protection Agency (EPA). Radioactive cesium has been found in at least 22 of the 1,585 NPL sites identified by ... Exposure to stable or radioactive cesium occurs from ingesting contaminated food or drinking water or breathing contaminated ...
The high density of the caesium ion makes solutions of caesium chloride, caesium sulfate, and caesium trifluoroacetate (Cs(O. 2 ... Caesium-134, and to a lesser extent caesium-135, have also been used in hydrology to measure the caesium output by the nuclear ... 2O) may contain only 0.002% caesium. Consequently, caesium is found in few minerals. Percentage amounts of caesium may be found ... This solution can be evaporated to produce caesium chloride or transformed into caesium alum or caesium carbonate. Though not ...
... of the metallic element cesium. Cesium-137 is one of the major products formed when uranium undergoes nuclear fission , as in a ... nuclear reactor or nuclear weapons . Source for information on Cesium 137: Environmental Encyclopedia dictionary. ... Cesium 137. A radioactive isotope of the metallic element cesium. Cesium-137 is one of the major products formed when uranium ... Cesium 137 Environmental Encyclopedia COPYRIGHT 2003 The Gale Group Inc.. ...
Toxicological profile for Cesium. Atlanta, GA: U.S. Department of Health and Human Services, Public Health Service. ...
... or cesium[note 1] (. /ˈsiːziəm/ SEE-zee-əm) is the chemical element with the symbol Cs and atomic number 55. It is a ... caesium-133. Caesium is mined mostly from pollucite, while the radioisotopes, especially caesium-137, are extracted from waste ... Since then, caesium has been widely used in atomic clocks.. Since the 1990s, the largest application of the element has been as ... The radioactive isotope caesium-137 has a half-life of about 30 years and is used in medical applications, industrial gauges, ...
Caesium auride (CsAu) is an ionic compound containing the unusual Au− ion first discovered in 1978 in the laboratory of Joseph ... It is obtained by heating a stoichiometric mixture of caesium and gold; the two metallic-yellow liquids react to give a clear ... The compound reacts violently with water, yielding caesium hydroxide, metallic gold, and hydrogen gas; in liquid ammonia it can ... be reacted with a caesium-specific ion exchange resin to produce tetramethylammonium auride. Kienast, Gerhard; Verma, Jitendra ...
The primary compounds of caesium are caesium chloride and its nitrate. The price of caesium metal in 1997 was about $US 30 per ... Caesium (also spelled cesium, IPA: /ˈsiːziəm/) is a chemical element in the periodic table that has the symbol Cs and atomic ... Caesium. 2007 Schools Wikipedia Selection. Related subjects: Chemical elements. 55. xenon ← caesium → barium. ... Caesium fluoride is widely used in organic chemistry as a base and as a source of anhydrous fluoride ion.*Caesium vapor is used ...
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database ...
Browse Cesium iodide and related products at MilliporeSigma. ... Cesium iodide, AnhydroBeads™, −10 mesh, 99.999% trace metals ... Cesium iodide. undefined. Synonyms: . CAS 7789-17-5. Molecular Weight 259.81. ...
Cesium hydroxide dimer Colorless or yellowish, crystalline solid. [Note: Hygroscopic (i.e., absorbs moisture from the air).] ...
... www.epa.gov/rpdweb00/radionuclides/cesium.htmlexternal icon. ... Cesium-137 (Cs-137)plus icon *Radioisotope Brief. *Toxicology ...
Caesium hydroxide in solution: UN 2681; UN Hazard class:8; UN Packgroup: II,III; Transport Emergency Card: TEC (R)-80GC5-II+III ... CAESIUM HYDROXIDE. ICSC. : 1592. Cesium hydrate. Cesium hydroxide. Caesium hydrate. April 2006. ...
Cesium_137 is named after a radioactive isotope of caesium. It continues a tradition in industrial music of incorporating a ... CS1 maint: discouraged parameter (link) CS1 maint: archived copy as title (link) Official Cesium_137 website Cesium_137 ... military and was no longer available as a member of Cesium_137. Cesium_137 had a hiatus of three years before their next ... Cesium_137s style was much mellower and synthpop inspired and less angst-ridden on these releases than on Advanced/Decay. In ...
Make research projects and school reports about cesium easy with credible articles from our FREE, online encyclopedia and ... Cesium carbonate and cesium fluoride are used to make specialty glasses. Cesium carbonate and cesium chloride are used in the ... Small amounts of cesium react with any air left in the bulb. It converts the gas into a solid cesium compound. Cesium is called ... Cesium Chemistry: Foundations and Applications COPYRIGHT 2004 The Gale Group, Inc.. Cesium. melting point: 28.5°C. boiling ...
Here, we report a new method for the production of high-quality cesium lead bromide and cesium lead chloride nanowires as well ... Lasing in cesium lead halide perovskite nanowires. Samuel W. Eaton, Minliang Lai, Natalie A. Gibson, Andrew B. Wong, Letian Dou ... Lasing in cesium lead halide perovskite nanowires. Samuel W. Eaton, Minliang Lai, Natalie A. Gibson, Andrew B. Wong, Letian Dou ... Lasing in robust cesium lead halide perovskite nanowires. Samuel W. Eaton, Minliang Lai, Natalie A. Gibson, Andrew B. Wong, ...
The diversity of uses for cesium are a result of its high number of isotopes, the most of any element.... ... Cesium has applications in vacuum tubes, atomic clocks, petroleum exploration and electronics. ... Cesium vapor is often a component of vapor lamps and lasers.. The cesium-133 isotope is part of some of the most accurate ... Cesium is relatively non-toxic in comparison to other drilling fluids. While cesium is expensive, it is reclaimable and ...
Tag: cesium chloride. NaturopathyPharmaceuticalsPolitics and Regulation. FDA proposes ban on curcumin and other naturopathic ... Based on a thorough review of the evidence by experts, the FDA is proposing a ban on using curcumin, cesium chloride and other ... FDA blacklists cesium chloride, ineffective and dangerous naturopathic cancer treatment. The FDA recently issued an alert ... warning of significant safety risks associated with cesium chloride. It is a mineral salt promoted by naturopathic "doctors" ...
Formic acid cesium salt; Linear Formula: CHCsO2; find Aldrich-433764 MSDS, related peer-reviewed papers, technical documents, ... Cesium, Cesium Salts, Chemical Synthesis, Essential Chemicals, Inorganic Salts, Materials Science, Metal and Ceramic Science, ... Cesium formate 98%; CAS Number: 3495-36-1; EC Number: 222-492-8; Synonym: ...
The theory is that cesium-137-contaminated waters reached these beaches in the wake of the disaster, that the cesium ... 2 of 17 minke whales caught off the Pacific coast of Hokkaido showed traces of radioactive cesium, both about 1/20th of the ... Per a press release, the cesium cant stick to sand under highly salty conditions, so as the brackish water becomes ... As the researchers write, Aside from the aquifer beneath [the plant], the highest recorded present-day activities of [cesium- ...
Radioactive cesium of up to 30.8 becquerels per kilogram has been found in baby formula manufactured and sold by Meiji Co., ... Radioactive Cesium Found In Meiji Baby Formula. Health & Wellness (tags: radioactive cesium, infant formula, Meiji Co., Japan, ... Radioactive cesium of up to 30.8 becquerels per kilogram has been found in baby formula manufactured and sold by Meiji Co., ... Radioactive Cesium Found In Meiji Baby Formula. ...
... clinical findings at two medical centers of the successful treatment of brain cancers and tumors using IsoRays patented Cesium ... clinical findings at two medical centers of the successful treatment of brain cancers and tumors using IsoRays patented Cesium ...
The level of cesium in the sample is 50 percent higher than other samples collected, but is still more than 500 times lower ... The isotope cesium-134 is the "fingerprint" of Fukushima, but, with a 2-year half-life, it decays much quicker than cesium-137 ... Almost any seawater sample from the Pacific will show traces of cesium-137, an isotope of cesium with a 30-year half-life, some ... Higher levels of Fukushima cesium detected offshore. Woods Hole Oceanographic Institution. Funder. National Science Foundation ...
Noun 1. cesium 137 - a radioactive isotope of cesium used in radiation therapy atomic number 55, caesium, cesium, Cs - a soft ... cesium 137 synonyms, cesium 137 pronunciation, cesium 137 translation, English dictionary definition of cesium 137. ... cesium 137 - a radioactive isotope of cesium used in radiation therapy. atomic number 55, caesium, cesium, Cs - a soft silver- ... cesium 137. Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.. Related to cesium 137: Chernobyl, cobalt 60 ...
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  • Cesium Hydroxide Monohydrate, purity min. (albemarle.com)
  • Cesium hydroxide monohydrate acts as a base in organic synthesis. (albemarle.com)
  • In water, Caesium violently reacts to make Caesium Hydroxide (2CsOH). (wikipedia.org)
  • Chemical mechanical polishing compositions including an abrasive and cesium hydroxide and methods for polishing dielectric layers associated with integrated circuits using cesium hydroxide containing polishing compositions. (google.es)
  • A chemical mechanical polishing composition comprising a fumed abrasive and from 0.01 to 5.0 wt% of cesium hydroxide. (google.es)
  • A chemical mechanical polishing composition capable of polishing integrated circuits with gate widths less than 0.25 m comprising from 1 to 50 wt% of a metal oxide abrasive and from 0.01 to 5.0 wt% cesium hydroxide. (google.es)
  • Caesium hydroxide is extremely corrosive and attack glass much faster than the other alkali hydroxides. (sciencemadness.org)
  • Based on a thorough review of the evidence by experts, the FDA is proposing a ban on using curcumin, cesium chloride and other naturopathic favorites in compounded drugs. (sciencebasedmedicine.org)
  • The FDA recently issued an alert warning of significant safety risks associated with cesium chloride. (sciencebasedmedicine.org)
  • Cesium chloride is considered a potent cancer treatment for even stage four levels of cancer and cancer metastasized throughout the body, including lymphoma and leukemia. (naturalnews.com)
  • Selling or purchasing cesium chloride is not illegal. (naturalnews.com)
  • His research evolved into a protocol using cesium chloride. (naturalnews.com)
  • Cesium chloride is one of a very few molecules that can penetrate cancer cells. (naturalnews.com)
  • However, normal cells do not take in the cesium chloride. (naturalnews.com)
  • Though one can administer cesium chloride after purchasing it, some guidance from the vendor is necessary. (naturalnews.com)
  • Caesium chloride for example, melts at at 645 °C, while cesium metal boils at 671 °C, so without a sensitive temperature controller there's a risk of boiling the metal. (sciencemadness.org)
  • The German scientist Hans Nieper has in the meantime shown that cesium chloride is effective in the management of most problematic tumors, e.g. of advanced brochogenic carcinoma with bone metastization. (digitalnaturopath.com)
  • BACKGROUND: Intravenous injection of cesium chloride (Cs) causes ventricular tachyarrhythmias in rabbits. (biomedsearch.com)
  • Computer model of a caesium chloride (CsCl) crystal. (sciencephoto.com)
  • G. W. Day and P. M. Gruzensky, "Some Optical Properties of Cesium Cupric Chloride," Appl. (osapublishing.org)
  • He has also followed up on the cesium chloride research of Dr. Keith Brewer and has successfully used cesium chloride therapy for years in the treatment of cancer. (newmediaexplorer.org)
  • Seven-week-old Sprague-Dawley rats received a daily oral dose of 500 mg/kg cesium chloride and/or DML (30, 100, and 300 mg/kg) for 4 weeks. (springer.com)
  • Animals were killed 2 h after the last cesium chloride and/or DML treatment. (springer.com)
  • Cesium chloride treatment significantly increased the levels of cesium in blood, and in the kidney and liver by 200 times or more, but the administration of DML did not show any significant effect on the levels of cesium in any tissue. (springer.com)
  • Blood and tissue concentration of cesium after exposure to cesium chloride: a report of two cases. (springer.com)
  • The metal is extremely reactive and pyrophoric , reacting with water even at −116 °C (−177 °F). It is the least electronegative element that has stable isotopes, of which it has only one, caesium-133. (princeton.edu)
  • One of its radioactive isotopes, cesium-137, is widely used in a variety of medical and industrial applications. (encyclopedia.com)
  • A number of artificial radioactive isotopes of cesium are known also. (encyclopedia.com)
  • The diversity of uses for cesium are a result of its high number of isotopes, the most of any element. (reference.com)
  • The level of radioactive cesium isotopes in the sample, 11 Becquerel's per cubic meter of seawater (about 264 gallons), is 50 percent higher than other samples collected along the West Coast so far, but is still more than 500 times lower than US government safety limits for drinking water, and well below limits of concern for direct exposure while swimming, boating, or other recreational activities. (eurekalert.org)
  • The appended maps describe the contamination of the radioactive isotopes cesium-134 and cesium-137 in topsoils in the depth of 0-12 cm. (berlin.de)
  • Radioactive levels in seawater were 10 to 100 times higher than before the nuclear accident, particularly near the facility, suggesting that water containing strontium and cesium isotopes was still leaking into the Pacific Ocean. (medicalnewstoday.com)
  • Caesium has at least 39 known isotopes ranging in atomic mass from 112 to 151. (wikipedia.org)
  • The amount of the long-lived radioactive isotope cesium-137, and the shorter-lived iodine-131, which have already escaped from the troubled Fukushima power plant in Japan may be significant, approaching emissions of these isotopes from the Chernobyl accident in 1986. (nature.com)
  • Crucially, he points out, only a few highly volatile elements, such as iodine, cesium and xenon, have escaped from the Fukushima plant, whereas at Chernobyl the greater damage to the core caused substantial quantities of many other less-volatile isotopes to be released, leading to far higher total radiation levels. (nature.com)
  • Unstable isotopes of cesium that decay or disintegrate emitting radiation. (harvard.edu)
  • Cs atoms with atomic weights of 123, 125-132, and 134-145 are radioactive cesium isotopes. (harvard.edu)
  • Nor do these total numbers account for the release of other isotopes from lingering plant discharges, including strontium-90, which, although present in quantities much lower than cesium , is of concern: It accumulates in the bones offish that could be eaten. (thefreedictionary.com)
  • Madigan and his team focused on the two cesium isotopes because they don't decay quickly, unlike other radioisotopes released by the Fukushima disaster. (thefreedictionary.com)
  • Radioactive isotopes of iodine ( 131 I and 129 I) and cesium ( 137 Cs) are important contaminants present in nuclear waste. (nrc.gov)
  • Since the 1990s, the largest application of the element has been as caesium formate for drilling fluids , but it has a range of applications in the production of electricity, in electronics, and in chemistry. (wikipedia.org)
  • Since the 1990s, the largest application of the element has been as caesium formate for drilling fluids . (princeton.edu)
  • Probably the most widespread use of caesium today is in caesium formate-based drilling fluids for the oil industry. (mcgill.ca)
  • The high density of the caesium formate brine (up to 2.3 sg,) coupled with the relative benignity of 133 Cs , reduces the requirement for toxic high-density suspended solids in the drilling fluid, which is a significant technological, engineering and environmental advantage. (mcgill.ca)
  • Cesium formate plays an important part in petroleum exploration as a drilling fluid. (reference.com)
  • The company is a leading provider of rubber and specialty carbons , activated carbon , inkjet colorants , cesium formate drilling fluids , fumed silica and aerogel . (businesswire.com)
  • Most cesium demand comes from a niche use in the oil and gas business whereby cesium formate brines are added to drilling fluids to prevent blow-outs in high temperature, over-pressurized wells. (kitco.com)
  • Caesium formate is used in oil drilling because of its high density . (wikipedia.org)
  • Cesium compounds, such as cesium formate , are used as drilling fluids. (sciencemadness.org)
  • The young tuna were found to be contaminated with two radioactive forms of the element cesium from Fukushima. (newser.com)
  • While Buesseler's work focuses on ocean chemistry and does not involve sampling of biological organisms, the InFORM scientists have done sampling of fish and have not seen any Fukushima cesium in fish collected in British Columbia. (eurekalert.org)
  • The isotope cesium-134 is the "fingerprint" of Fukushima, but, with a 2-year half-life, it decays much quicker than cesium-137. (eurekalert.org)
  • Scientists back calculate traces of cesium-134 to determine how much was actually released from Fukushima in 2011 and add to it an equal amount of cesium-137 that would have been released at the same time. (eurekalert.org)
  • FUKUSHIMA - Tokyo Electric Power Co. said Tuesday it has detected radioactive cesium about 1 km off the coast of the crippled Fukushima No. 1 nuclear plant for the second time since it started the survey in August. (japantimes.co.jp)
  • Levels of radioactive cesium-134 in a well at Fukushima nuclear power plant are up to 90 times higher than just three days ago, and may spread into the Pacific Ocean. (rt.com)
  • The largest concern on the cesium-137 ( 137 Cs) deposition and its soil contamination due to the emission from the Fukushima Daiichi Nuclear Power Plant (NPP) showed up after a massive quake on March 11, 2011. (pnas.org)
  • SENDAI - Levels of radioactive cesium in soil and on the ground of two forests in Miyagi Prefecture have risen since the 2011 Fukushima nuclear disaster started, according to results of a recent survey. (japantimes.co.jp)
  • In forests about 60 km and 120 km north of the severely damaged Fukushima No. 1 power plant, cesium is believed to be accumulating in the soil as cesium-contaminated leaves fall to the ground and decompose. (japantimes.co.jp)
  • In a forest in the town of Marumori closer to Fukushima, the average cesium level of 10 samples of fallen quills was 26,684 becquerels per kilogram in June 2012, but rose to 42,759 becquerels a year later. (japantimes.co.jp)
  • The results differ from a study the Forestry Agency conducted in 2011 and 2012 in three municipalities in Fukushima Prefecture, which found levels of cesium increasing in soil but declining in fallen foliage. (japantimes.co.jp)
  • Difference in the Cesium Body Contents of Affected Area Residents Depending on the Evacuation Timepoint Following the 2011 Fukushima Nuclear Disaster. (harvard.edu)
  • In Fukushima Prefecture, the straw was found to contain up to 97,000 becquerels of radioactive cesium per kg. (thefreedictionary.com)
  • 18 ( ANI ): A mountain trout caught in the Niida River in Fukushima Prefecture contained 11,400 becquerels of radioactive cesium per kilogram, more than 110 times above the government limit for food products, a survey by the Environment Ministry showed. (thefreedictionary.com)
  • Internal structure of cesium-bearing radioactive microparticles released from Fukushima nuclear power plant. (globalresearch.ca)
  • Since the accident at the Fukushima Daiichi Nuclear Power Plant, the discharge of radioactive cesium , especially 137Cs (half-life: 30.17 years), into the environment has become a serious environmental problem. (phys.org)
  • [note 2] Caesium has physical and chemical properties similar to those of rubidium and potassium . (wikipedia.org)
  • The chemistry of caesium is similar to that of other alkali metals, in particular rubidium, the element above caesium in the periodic table. (wikipedia.org)
  • The Chemistry of Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium studies the physical and chemical properties of the elements listed in the title, including their chemical compounds and reactions. (elsevier.com)
  • In its ionic form, caesium ions are extremely similar to potassium and rubidium ions, and its toxicity is just as low as the mentioned elements. (sciencemadness.org)
  • Potassium , Rubidium, and especially Cesium. (digitalnaturopath.com)
  • 1984.---Mass spectrographic and isotope studies have shown that potassium, rubidium, and especially cesium are most efficiently taken up by cancer cells. (newmediaexplorer.org)
  • Tests on mice fed cesium and rubidium showed marked shrinkage in the tumor masses within 2 weeks. (newmediaexplorer.org)
  • Most cesium compounds dissolve in water. (cdc.gov)
  • In moist soils, most cesium compounds are very soluble. (cdc.gov)
  • Working in industries that process or use natural cesium or cesium compounds. (cdc.gov)
  • Laboratory animals given very large amounts of cesium compounds showed changes in behavior, such as increased or decreased activity. (cdc.gov)
  • Nonradioactive caesium compounds are only mildly toxic , but the pure metal's tendency to react explosively with water means that caesium is considered a hazardous material, and the radioisotopes present a significant health and ecological hazard in the environment. (wikipedia.org)
  • And now less than four weeks later, the Chinese are in control of the world's mine-to-market supply chain of cesium, including proprietary technologies to manufacture a variety of cesium compounds. (kitco.com)
  • Caesium forms compounds with many other chemical elements . (wikipedia.org)
  • Thirdly, that humic compounds in the peat soils chelate the caesium and hold it in solution. (europa.eu)
  • One way is to reduce caesium halides with a reactive metal such as calcium , barium , or lithium at 700-800 °C, followed by distillation of the caesium metal. (sciencemadness.org)
  • Purer caesium metal can also be prepared by decomposing caesium azide in vacuum at 390 °C, which is prepared from caesium sulfate and barium azide . (sciencemadness.org)
  • Because radioactive cesium emits ionizing radiation, carcinogenic effects similar to those observed in Japanese survivors of the atomic bombing incidents might be expected among individuals acutely exposed to very high levels of radiation from a radioactive cesium source. (cdc.gov)
  • Caesium ( IUPAC spelling [6] ) ( also spelled cesium in American English ) [note 1] is a chemical element with the symbol Cs and atomic number 55. (wikipedia.org)
  • Since then, caesium has been widely used in highly accurate atomic clocks . (wikipedia.org)
  • Cesium has applications in vacuum tubes, atomic clocks, petroleum exploration and electronics. (reference.com)
  • The cesium-133 isotope is part of some of the most accurate atomic clocks in the world. (reference.com)
  • The element that has the largest atomic radius is cesium. (reference.com)
  • Cesium (or Caesium) (atomic symbol: Ce, atomic number: 55) is a Block S, Group 1, Period 6 element with an atomic weight of 132.9054519. (americanelements.com)
  • Caesium (or cesium ) is the chemical element with the atomic number 55 on the periodic table . (wikipedia.org)
  • The amplitude of the parity-nonconserving transition between the 6 S and 7 S states of cesium was precisely measured with the use of a spin-polarized atomic beam. (sciencemag.org)
  • Leaving the container sealed, four experts from the Japan Atomic Energy Research Institute in Tokyo measured gamma rays and detected cesium 137 in one section of the 6-meter-long, 2. (thefreedictionary.com)
  • This revolutionary technology uses a chip-scale atomic clock (CSAC) to precisely divide a second into exactly 9,192,631,770 vibrations of the cesium 133 atom - in fact this is the scientific definition of a second by the International System of Units (SI). (kickstarter.com)
  • It basically says that these things [optical atomic clocks] are now capable of being better than cesium [clocks]," says atomic clock specialist Patrick Gill of the National Physical Laboratory in Teddington, England. (thefreedictionary.com)
  • Caesium or cesium is an alkali metal with the chemical symbol Cs and atomic number 55. (sciencemadness.org)
  • Only one naturally occurring isotope of cesium is known, cesium-133. (encyclopedia.com)
  • One radioactive isotope of cesium is of special importance, cesium-137. (encyclopedia.com)
  • Almost any seawater sample from the Pacific will show traces of cesium-137, an isotope of cesium with a 30-year half-life, some of which is left over from nuclear weapons testing carried out in the 1950s to 1970s. (eurekalert.org)
  • He adds that the modelling was only for the 137 isotope of cesium, but that he'd expect similar amounts of cesium-134 (which has a half-life of two years) to have been released. (nature.com)
  • That particular isotope of cesium , which has a half-life of about 30 years, is generated when atoms of uranium-235 and plutonium-239 undergo fission within bombs or nuclear reactors. (thefreedictionary.com)
  • The River Protection Project - Hanford Tank Waste Treatment and Immobilization Plant will use cesium ion exchange to remove 137Cs from Low Activity Waste down to 0.3 Ci/m3 in the Immobilized LAW, ILAW product. (unt.edu)
  • Cesium is a member of the alkali family, which consists of elements in Group 1 (IA) of the periodic table. (encyclopedia.com)
  • Cesium has one valence electrons in its outer ring, as indicated by its placement in column 1 of a wide form periodic table or column IA of a narrow form periodic table. (answers.com)
  • Although in theory francium is more active than cesium, francium is too rare to have any commercial uses. (encyclopedia.com)
  • the alloy with a molar distribution of 41% caesium, 47% potassium, and 12% sodium has the lowest melting point of any known metal alloy, at −78 °C (−108 °F). A few amalgams have been studied: CsHg 2 is black with a purple metallic lustre, while CsHg is golden-coloured, also with a metallic lustre. (wikipedia.org)
  • A description is given of the preparation and properties of a granular form of potassium hexacyanocobalt(II) ferrate(II) that is a highly selective absorbent for cesium ion. (unt.edu)
  • You can be exposed to radioactive cesium if you eat food that was grown in contaminated soil, or if you come near a source of radioactive cesium. (cdc.gov)
  • Mercury is the only stable elemental metal with a known melting point lower than caesium. (wikipedia.org)
  • In its elemental form, cesium has a silvery gold appearance. (americanelements.com)
  • While more than half of 2004's album Elemental was produced by Cesium_137, the remainder was produced in conjunction with Soundwave2000 Studios in Finland, Danse Macabre Studios Germany, and with their favorite new media Composer, Andreas Meyer (aka Forma Tadre). (metropolis-records.com)
  • Simply put, Elemental was the dream Cesium_137 conjured into reality. (metropolis-records.com)
  • Electrolytic preparation of elemental cesium is extremely difficult. (sciencemadness.org)
  • Cesium is relatively non-toxic in comparison to other drilling fluids. (reference.com)
  • Cesium is a very reactive metal. (encyclopedia.com)
  • Play media Caesium metal is highly reactive and very pyrophoric. (wikipedia.org)
  • Caesium is extremely reactive in air and water. (wikipedia.org)
  • Caesium is an extremely reactive metal an will spontaneously ignite in air to form caesium oxides and hydroxides. (sciencemadness.org)
  • Because it's extremely reactive, isolating pure caesium metal is extremely difficult. (sciencemadness.org)
  • Caesium metal is extremely reactive and pyrophoric in air. (sciencemadness.org)
  • The German chemist Robert Bunsen and physicist Gustav Kirchhoff discovered caesium in 1860 by the newly developed method of flame spectroscopy . (wikipedia.org)
  • Cesium was discovered in 1861 by German chemists Robert Bunsen (1811-99) and Gustav Kirchhoff (1824-87). (encyclopedia.com)
  • Cesium was discovered by Robert Bunsen and Gustav Kirchhoff in 1860 and first isolated by Carl Setterberg in 1882. (americanelements.com)
  • A 50% suspension was the highest feasible concentration of cesium fluoroaluminate in propylene. (europa.eu)
  • Following cultivation of Arabidopsis seedlings on a culture medium containing a high concentration of cesium carbonate, Cesium Green was applied to the seedlings, and the resulting green fluorescence observed was used to confirm the presence of cesium within the plants' cells. (phys.org)
  • Little more than two months ago, I reported on the pending sale of America's world monopoly in cesium, a Trump Administration-designated critical mineral, to China ( Mercenary Musing, April 22, 2019 ). (kitco.com)
  • Alboloushi A., Aba A., Alboloushi O. (2019) Cesium and Uranium Radioisotopes Monitoring in Kuwait Bay Seawater. (springer.com)
  • In the context of this program, the national trend in replacing cesium irradiators will be summarized, including the Fiscal Year 2019 National Defense Authorization Act goal to voluntarily replace all cesium blood irradiators on the United States by 2027. (aabb.org)
  • Nuclear explosions or the breakdown of uranium in fuel elements can produce two radioactive forms of cesium, 134 Cs and 137 Cs. (cdc.gov)
  • Caesium is mined mostly from pollucite , while the radioisotopes , especially caesium-137 , a fission product , are extracted from waste produced by nuclear reactors . (wikipedia.org)
  • During atmospheric testing of nuclear weapons after World War II , cesium-137 was a source of major concern to health scientists. (encyclopedia.com)
  • Large quantities of cesium-137 were released when the Chernobyl nuclear reactor exploded in 1986. (encyclopedia.com)
  • 134 Cs has been used in hydrology as a measure of caesium output by the nuclear power industry. (mcgill.ca)
  • Long-term inputs refer only to cesium-137, caused by the global fallout from atmospheric nuclear tests in the 50's and 60's. (berlin.de)
  • The figures are lower than the legal limit for the release of cesium-137 from nuclear power plants, which is set at 90 becquerels per liter. (japantimes.co.jp)
  • Cobalt-60, cesium-137, and europium-152 have been identified in "trinitite," an artifical mineral produced in the first nuclear explosion at Alamagordo, New Mexico, in 1945. (sciencemag.org)
  • Radioactive cesium ( 137 Cs) has inevitably become a human concern due to exposure from nuclear power plants and nuclear accident releases. (mdpi.com)
  • This observation suggests the possibility of a vitamin, mineral , antioxidant formula containing cesium in an amount equal to that found in the soil of cancer free habitats. (digitalnaturopath.com)
  • It reacts with ice at temperatures as low as −116 °C (−177 °F). Because of this high reactivity, caesium metal is classified as a hazardous material. (wikipedia.org)
  • Cesium binds strongly to moist soils and does not travel far below the surface of the soil. (cdc.gov)
  • Secondly, that flooding of peat soils allows the caesium to be washed out easily. (europa.eu)
  • Caesium is the least abundant of the five non-radioactive alkali metals. (mcgill.ca)
  • Cesium, the most electropositive and least abundant of the five naturally occurring alkali metals, was discovered spectroscopically in 1860. (digitalnaturopath.com)
  • Based on dissolved Cs and Al the solubilty of cesium fluoroaluminate was determined. (europa.eu)
  • Cesium_137's style was much mellower and synthpop inspired and less angst-ridden on these releases than on Advanced/Decay. (wikipedia.org)
  • The drop in soil contamination is more determined by the decay of cesium-134 than it is by any transferring process. (berlin.de)
  • A matched-pair analysis of clinical outcomes after intracavitary cesium-131 brachytherapy versus stereotactic radiosurgery for resected brain metastases. (harvard.edu)
  • Cesium must be stored under kerosene or a mineral oil to protect it from reacting with oxygen and water vapor in the air. (encyclopedia.com)
  • The mineral containing the largest fraction of cesium is pollucite (Cs 4 Al 4 Si 9 O 26 ). (encyclopedia.com)
  • Cesium is also found in small amounts in a mineral of boron called rhodizite. (encyclopedia.com)
  • NaturalNews) Cesium, an extremely alkaline mineral, has been used effectively on cancer since the 1930s. (naturalnews.com)
  • Because of this, caesium is stored in mineral oil . (wikipedia.org)
  • The cesium mineral pollucite has been identified within the Pakeagama Lake pegmatite and is only the fourth pollucite occurrence noted in Ontario. (thefreedictionary.com)
  • The best way to handle metallic cesium is in a glove box filled with inert gas, such as argon. (sciencemadness.org)
  • Cesium metals are packaged in glass ampoules under argon and sold by the gram or kilogram. (espimetals.com)
  • Exposure to stable or radioactive cesium occurs from ingesting contaminated food or drinking water or breathing contaminated air. (cdc.gov)
  • You can be exposed to low levels of stable or radioactive cesium by breathing air, drinking water, or eating food containing cesium. (cdc.gov)
  • Food and drinking water are the largest sources of exposure to cesium. (cdc.gov)
  • Exposure to large amounts of radioactive cesium can damage cells in your body from the radiation. (cdc.gov)
  • Exposure to the radiation from radioactive cesium has caused birth defects in animals. (cdc.gov)
  • IsoRay announced the presentation of clinical findings at two medical centers of the successful treatment of brain cancers and tumors using IsoRay's patented Cesium-131 sutured seeds and seed sutured mesh for internal radiation therapy. (yahoo.com)
  • Prepared by the Scientific Committee 64-23 on Cesium in the Environment of the National Council on Radiation Protection and Measurements, this report summarizes the current state of knowledge of radiocesium in the environment and aims to identify management issues concerning cesium 137 contamination of ecosystems. (thefreedictionary.com)
  • To confirm whether the Austrian centre's estimates are accurate Smith says he would like to see the Japanese authorities publishing more radiation measurements, and in particular maps of cesium deposition in the region. (nature.com)
  • Access to the "radiation room" where cesium and other radioactive substances are stored has been reduced from six people to two: Cassiano and a radiation safety officer. (latimes.com)
  • Deerfield Beach, FL -- ( SBWire ) -- 11/30/2017 --The Cesium Carbonate Market Research Report 2017 is a professional and in-depth study on the current state of the Cesium Carbonate industry. (sbwire.com)
  • Furthermore, the untapped opportunities in emerging economies will provide a considerable impetus to the small, medium, and large companies operating in the Global Cesium Carbonate market. (sbwire.com)
  • These opportunities in turn are projected to have positive impact on the Global Cesium Carbonate market. (sbwire.com)
  • Competitors often are competing on the basis of the cost of the products in the Global Cesium Carbonate market. (sbwire.com)
  • The report studies the Cesium Carbonate market by evaluating the market chain, prevalent policies, and regulations as well as the manufacturers, their manufacturing chain, cost structures, and contribution in the industry. (sbwire.com)
  • The regional markets for the global Cesium Carbonate market are examined by analyzing the pricing of products in the region compared to the profit generated. (sbwire.com)
  • The report therefore studies in detail the impact of the strategies, plans, and policies adopted by leading vendors of the Cesium Carbonate market. (sbwire.com)
  • The method developed in this research can be used to detect cesium carbonate particles at high resolution (micrometer-level) by using a fluorescent probe called "Cesium Green," which also enables intracellular imaging of cesium distribution. (phys.org)
  • Thus, the obtained Prussian blue-coated magnetic nanoparticles were then characterized and examined for their physical and radioactive cesium adsorption properties. (mdpi.com)
  • The waste contains toxic and highly radioactive elements, including plutonium, cesium 137 , and strontium 90 mixed in with other materials that make the liquids in the tanks extremely caustic. (thefreedictionary.com)
  • And in 1993, tritium, strontium 90, cesium 137 and plutonium 238 were found in soil samples taken from the camp along the Rocketdyne property line. (thefreedictionary.com)
  • Scientists from the Universitat Autònoma de Barcelona (UAB) investigated the levels of radioactive strontium and cesium in the coast off Japan in September 2013. (medicalnewstoday.com)
  • Although the total levels of cesium collected on July 8 were far higher than those collected just three days earlier on July 5, levels of other radioactive materials, such as strontium, remained the same as three days ago. (rt.com)
  • The spectrometer, developed over 10 years by Hamby and Abi Farsoni, an assistant professor in the College of Engineering, can quickly tell the type and amount of radionuclides that are present in something like a soil sample-contaminants such as cesium 137 or strontium 90-that were produced from reactor operations. (thefreedictionary.com)
  • This is because caesium explodes instantly upon contact with water, leaving little time for hydrogen to accumulate. (wikipedia.org)
  • Methylmercury and Cesium-137 accumulate in predatory fish (pike, perch, pikeperch, burbot) in the same lakes. (evira.fi)
  • Furthermore, fluorescence microscopy observations, which take advantage of the precise location-detecting properties of Cesium Green, revealed that cesium has a tendency to accumulate in the vacuoles of the cells. (phys.org)
  • Mean cesium concentrations of vessel 1 and 2 over all sampling periods. (europa.eu)
  • In order to evaluate the radiological safety of locally sourced desalinated water and seafood, the activity concentrations of Cesium-137 ( 137 Cs), Uranium-234 ( 234 U), and Uranium-238 ( 238 U) in Kuwait Bay seawater were measured. (springer.com)
  • Fourthly, that low concentrations of ammonia in rainfall displace caesium from frayed edge sites on the small quantity of illite particles in the catchment area. (europa.eu)
  • 9 km away from the plant, containing radioactive cesium concentrations of 651 becquerels per kilogram, the team said. (thefreedictionary.com)
  • Herein we report a robust and easy method for detecting cesium metal ion (Cs + ) in partially aqueous solutions using the fluorescence quenching of 2,4-bis[4-( N , N -dihydroxyethylamino)phenyl]squaraine. (rsc.org)
  • Cesium-137 is an expected fission product, but the origin of the other two radionuclides is not certain. (sciencemag.org)
  • Cesium-137 was detected at a level of 1.6 becquerels per liter from seawater extracted Friday, higher than the reading measured earlier at the same survey point. (japantimes.co.jp)
  • Seawater extracted Oct. 8 had a reading of 1.4 becquerels per liter of cesium-137. (japantimes.co.jp)
  • TEPCO, the company that operated the plant and is now in charge of the cleanup and decommissioning, said that cesium-134 levels in the well water were at 9,000 becquerels per liter, 150 times the legal level. (rt.com)
  • Since the methods involved here can be initially investigated using harmless non- radioactive cesium , which has the same chemical properties as radioactive cesium (in terms of detectability using Cesium Green), it is a highly versatile method that requires no special experimental facilities. (phys.org)
  • It is highly unlikely that you would be exposed to high enough amounts of stable cesium to cause harmful health effects. (cdc.gov)
  • Here, we report the low-temperature, solution-phase growth of cesium lead halide nanowires exhibiting low-threshold lasing and high stability. (pnas.org)
  • The increase will also help to ensure Cabot remains a reliable, long-term supplier of high quality cesium products, and continues to deliver exceptional support to its customers. (businesswire.com)
  • However, this equipment contained cesium-rich, high-level waste, which was transported aboveground via roadway to an on-site interim safe storage pad," said Savannah River Remediation (SRR) president and project manager Phil Breidenbach. (ans.org)
  • Cesium`s high alkalinity shoots the cell`s pH to 8.0 or higher (normal is 7) while the serum (blood) pH stays at or below normal. (naturalnews.com)
  • The latest findings, just 25 meters from the Pacific Ocean, were made just a month after TEPCO detected cesium in the groundwater flowing from high ground fairly far from the sea into its destroyed plant. (rt.com)
  • In every case, the cesium content has been found to be very high. (digitalnaturopath.com)
  • Note that in areas of the world where there is a high cesium content in the soil cancer is virtually unknown: Hopi Indians of Arizona, the Hunza of North Pakistan, and the Indians of Central and South America. (digitalnaturopath.com)
  • http://www.chronos.co.uk/files/pdfs/itsf/2015/day2/1410_High_performance_optically-pumped_cesium_beam_clock-PBerthoud-Oscilloquartz.pdf Two year old deck with a fair amount of overlap, though a few more engineering diagrams. (febo.com)
  • Whereas organic-inorganic lead halide perovskite materials are known for their instability, cesium lead halides offer a robust alternative without sacrificing emission tunability or ease of synthesis. (pnas.org)
  • Baye, E. An Alternative Method for the Synthesis of γ-Lactones by Using Cesium Fluoride-Celite/Acetonitrile Combination. (alfa.com)
  • article{osti_1434096, title = {Synthesis and optical properties of ordered-vacancy perovskite cesium bismuth halide nanocrystals}, author = {Nelson, R. D. and Santra, K. and Wang, Y. and Hadi, A. and Petrich, J. W. and Panthani, M. G.}, abstractNote = {Vacancy-ordered cesium bismuth halide nanocrystals were synthesized using hot-injection methods. (osti.gov)
  • The half-life of Iodine 131 is eight days, and for Cesium 137 , 30 years, though both are removed from the atmosphere fairly quickly. (thefreedictionary.com)
  • Wotawa says he was "surprised at the cesium levels, but less so with respect to iodine, as its highly volatile. (nature.com)
  • The golden colour of caesium comes from the decreasing frequency of light required to excite electrons of the alkali metals as the group is descended. (wikipedia.org)
  • Atoms are represented as spheres and are colour-coded: caesium (pink) and chlorine (green). (sciencephoto.com)
  • However, a caesium-water explosion is often less powerful than a sodium-water explosion with a similar amount of sodium. (wikipedia.org)
  • Cesium metal cannot be safely neutralized by dissolving it in isopropanol , like sodium, as the reaction is just as violent as the one with water. (sciencemadness.org)
  • We synthesize nanowires of a promising set of compositions, the cesium lead halides, and accomplish this under near-ambient conditions. (pnas.org)
  • Very small amounts of cesium alloys are used in the cathode of the electron gun from the cathode ray tube TVs. (sciencemadness.org)
  • How can families reduce the risk of exposure to cesium? (cdc.gov)
  • in other words, the plasmonic frequency of the alkali metals becomes lower from lithium to caesium. (wikipedia.org)
  • Cesium is a silvery-white, shiny metal that is very soft and ductile. (encyclopedia.com)
  • Caesium auride (CsAu) is an ionic compound containing the unusual Au− ion first discovered in 1978 in the laboratory of Joseph Lagowski. (wikipedia.org)
  • in liquid ammonia it can be reacted with a caesium-specific ion exchange resin to produce tetramethylammonium auride. (wikipedia.org)