A trace element that is a component of vitamin B12. It has the atomic symbol Co, atomic number 27, and atomic weight 58.93. It is used in nuclear weapons, alloys, and pigments. Deficiency in animals leads to anemia; its excess in humans can lead to erythrocytosis.
Unstable isotopes of cobalt that decay or disintegrate emitting radiation. Co atoms with atomic weights of 54-64, except 59, are radioactive cobalt isotopes.
Stable cobalt atoms that have the same atomic number as the element cobalt, but differ in atomic weight. Co-59 is a stable cobalt isotope.
A trace element with the atomic symbol Ni, atomic number 28, and atomic weight 58.69. It is a cofactor of the enzyme UREASE.
A trace element that plays a role in glucose metabolism. It has the atomic symbol Cr, atomic number 24, and atomic weight 52. According to the Fourth Annual Report on Carcinogens (NTP85-002,1985), chromium and some of its compounds have been listed as known carcinogens.
Specific alloys not less than 85% chromium and nickel or cobalt, with traces of either nickel or cobalt, molybdenum, and other substances. They are used in partial dentures, orthopedic implants, etc.
Porphyrins with four methyl, two vinyl, and two propionic acid side chains attached to the pyrrole rings. Protoporphyrin IX occurs in hemoglobin, myoglobin, and most of the cytochromes.
Electropositive chemical elements characterized by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (Grant & Hackh's Chemical Dictionary, 5th ed)
Metals with high specific gravity, typically larger than 5. They have complex spectra, form colored salts and double salts, have a low electrode potential, are mainly amphoteric, yield weak bases and weak acids, and are oxidizing or reducing agents (From Grant & Hackh's Chemical Dictionary, 5th ed)
A group of compounds containing the porphin structure, four pyrrole rings connected by methine bridges in a cyclic configuration to which a variety of side chains are attached. The nature of the side chain is indicated by a prefix, as uroporphyrin, hematoporphyrin, etc. The porphyrins, in combination with iron, form the heme component in biologically significant compounds such as hemoglobin and myoglobin.
A cobalt-containing coordination compound produced by intestinal micro-organisms and found also in soil and water. Higher plants do not concentrate vitamin B 12 from the soil and so are a poor source of the substance as compared with animal tissues. INTRINSIC FACTOR is important for the assimilation of vitamin B 12.
Inorganic compounds that contain tungsten as an integral part of the molecule.
A metallic element of atomic number 30 and atomic weight 65.38. It is a necessary trace element in the diet, forming an essential part of many enzymes, and playing an important role in protein synthesis and in cell division. Zinc deficiency is associated with ANEMIA, short stature, HYPOGONADISM, impaired WOUND HEALING, and geophagia. It is known by the symbol Zn.
Cyclic TETRAPYRROLES based on the corrin skeleton.
Literary and oral genre expressing meaning via symbolism and following formal or informal patterns.
Time period from 1801 through 1900 of the common era.
Lists of persons or organizations, systematically arranged, usually in alphabetic or classed order, giving address, affiliations, etc., for individuals, and giving address, officers, functions, and similar data for organizations. (ALA Glossary of Library and Information Science, 1983)
A suborder of HEMIPTERA, called true bugs, characterized by the possession of two pairs of wings. It includes the medically important families CIMICIDAE and REDUVIIDAE. (From Dorland, 28th ed)
The affective response to an actual current external danger which subsides with the elimination of the threatening condition.
Sequential operating programs and data which instruct the functioning of a digital computer.
Sound that expresses emotion through rhythm, melody, and harmony.
The use of music as an adjunctive therapy in the treatment of neurological, mental, or behavioral disorders.
Method of making images on a sensitized surface by exposure to light or other radiant energy.
A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.
Organized activities related to the storage, location, search, and retrieval of information.
The portion of an interactive computer program that issues messages to and receives commands from a user.
Automotive safety devices consisting of a bag designed to inflate upon collision and prevent passengers from pitching forward. (American Heritage Dictionary, 1982)
A usually four-wheeled automotive vehicle designed for passenger transportation and commonly propelled by an internal-combustion engine using a volatile fuel. (Webster, 1973)
Accidents on streets, roads, and highways involving drivers, passengers, pedestrians, or vehicles. Traffic accidents refer to AUTOMOBILES (passenger cars, buses, and trucks), BICYCLING, and MOTORCYCLES but not OFF-ROAD MOTOR VEHICLES; RAILROADS nor snowmobiles.
A shared service which combines the purchasing power of individual organizations or facilities in order to obtain lower prices for equipment and supplies. (From Health Care Terms, 2nd ed)
Organized groups of users of goods and services.
Agencies of the FEDERAL GOVERNMENT of the United States.
The opening and closing of ion channels due to a stimulus. The stimulus can be a change in membrane potential (voltage-gated), drugs or chemical transmitters (ligand-gated), or a mechanical deformation. Gating is thought to involve conformational changes of the ion channel which alters selective permeability.
A form of interactive entertainment in which the player controls electronically generated images that appear on a video display screen. This includes video games played in the home on special machines or home computers, and those played in arcades.
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.
The application of electronic, computerized control systems to mechanical devices designed to perform human functions. Formerly restricted to industry, but nowadays applied to artificial organs controlled by bionic (bioelectronic) devices, like automated insulin pumps and other prostheses.
Voltage-dependent cell membrane glycoproteins selectively permeable to calcium ions. They are categorized as L-, T-, N-, P-, Q-, and R-types based on the activation and inactivation kinetics, ion specificity, and sensitivity to drugs and toxins. The L- and T-types are present throughout the cardiovascular and central nervous systems and the N-, P-, Q-, & R-types are located in neuronal tissue.

Ionic currents underlying spontaneous action potentials in isolated cerebellar Purkinje neurons. (1/2206)

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)

Cyanide poisoning: pathophysiology and treatment recommendations. (2/2206)

This paper aims to assess and compare currently available antidotes for cyanide poisoning. Such evaluation, however, is difficult. Thus, extrapolation from the results of animal studies has potential pitfalls, as significant inter-species differences in response may exist, and these experiments often involve administration of toxin and antidote almost simultaneously, rather than incorporating a more realistic time delay before initiation of treatment. Direct inference from human case reports is also problematic; either because of uncertainties over the exposure levels involved (and hence the likely outcome without treatment), or because of difficulties in identifying the specific contribution of a particular antidote within the overall treatment regimen. Certainly an effort to compare the relative efficacy of cyanide antidotes produces equivocal findings, with no single regimen clearly standing out. Indeed, factors such as the risks of antidote toxicity to various individuals and other practical issues, may be more important considerations. There is therefore no single treatment regimen which is best for all situations. Besides individual risk factors for antidote toxicity, the nature of the exposure and hence its likely severity, the evolving clinical features and the number of persons involved and their proximity to hospital facilities, all need to be considered. Clinically mild poisoning may be treated by rest, oxygen and amyl nitrite. Intravenous antidotes are indicated for moderate poisoning. Where the diagnosis is uncertain, sodium thiosulphate may be the first choice. With severe poisoning, an additional agent is required. Given the various risks with methaemoglobin formers or with unselective use of kelocyanor, hydroxocobalamin may be preferred from a purely risk-benefit perspective. However the former alternatives will likely remain important.  (+info)

Source of inappropriate receptive fields in cortical somatotopic maps from rats that sustained neonatal forelimb removal. (3/2206)

Previously this laboratory demonstrated that forelimb removal at birth in rats results in the invasion of the cuneate nucleus by sciatic nerve axons and the development of cuneothalamic cells with receptive fields that include both the forelimb-stump and the hindlimb. However, unit-cluster recordings from primary somatosensory cortex (SI) of these animals revealed few sites in the forelimb-stump representation where responses to hindlimb stimulation also could be recorded. Recently we reported that hindlimb inputs to the SI forelimb-stump representation are suppressed functionally in neonatally amputated rats and that GABAergic inhibition is involved in this process. The present study was undertaken to assess the role that intracortical projections from the SI hindlimb representation may play in the functional reorganization of the SI forelimb-stump field in these animals. The SI forelimb-stump representation was mapped during gamma-aminobutyric acid (GABA)-receptor blockade, both before and after electrolytic destruction of the SI hindlimb representation. Analysis of eight amputated rats showed that 75.8% of 264 stump recording sites possessed hindlimb receptive fields before destruction of the SI hindlimb. After the lesions, significantly fewer sites (13.2% of 197) were responsive to hindlimb stimulation (P < 0.0001). Electrolytic destruction of the SI lower-jaw representation in four additional control rats with neonatal forelimb amputation did not significantly reduce the percentage of hindlimb-responsive sites in the SI stump field during GABA-receptor blockade (P = 0.98). Similar results were obtained from three manipulated rats in which the SI hindlimb representation was silenced temporarily with a local cobalt chloride injection. Analysis of response latencies to sciatic nerve stimulation in the hindlimb and forelimb-stump representations suggested that the intracortical pathway(s) mediating the hindlimb responses in the forelimb-stump field may be polysynaptic. The mean latency to sciatic nerve stimulation at responsive sites in the GABA-receptor blocked SI stump representation of neonatally amputated rats was significantly longer than that for recording sites in the hindlimb representation [26.3 +/- 8.1 (SD) ms vs. 10.8 +/- 2.4 ms, respectively, P < 0.0001]. These results suggest that hindlimb input to the SI forelimb-stump representation detected in GABA-blocked cortices of neonatally forelimb amputated rats originates primarily from the SI hindlimb representation.  (+info)

Regulation of interleukin-8 expression by reduced oxygen pressure in human glioblastoma. (4/2206)

Oxygen deprivation is an important biological feature of tumor growth. We previously showed that in glioma, anoxia increases expression of IL-8, a chemokine and angiogenic factor. Here, we analysed for the first time the biochemical mechanisms inducing the IL-8 gene upon anoxia in glioma cells, and showed that they differ from those inducing the VEGF gene. Both genes are induced in biologically and genetically heterogenous glioblastoma cell lines (LN-229, LN-Z308, U87MG, T98G), whereas, in gliosarcoma cells (D247MG), only the VEGF gene is induced. The kinetics of IL-8 and VEGF mRNA inductions differ in these cells and reoxygenation experiments showed that the induction is due to the anoxic stress per se. Furthermore, in LN-229 and LN-Z308 cell lines actinomycin D, DRB and nuclear run-on experiments showed that anoxia stimulates increased transcription of both genes. Electromobility shift assays show increased protein binding to the AP-1 site on the IL-8 promoter following anoxia treatment. Finally, in situ hybridization on glioblastoma sections shows that the in vivo expression patterns of IL-8 and VEGF genes overlap, but are not identical. Since intratumoral augmentation of IL-8 and VEGF secretion, following microenvironmental decreases in oxygen pressure, may promote angiogenesis, further definition of these pathways is essential to appropriately target them for antitumoral therapy.  (+info)

Acetylcholine-induced membrane potential changes in endothelial cells of rabbit aortic valve. (5/2206)

1. Using a microelectrode technique, acetylcholine (ACh)-induced membrane potential changes were characterized using various types of inhibitors of K+ and Cl- channels in rabbit aortic valve endothelial cells (RAVEC). 2. ACh produced transient then sustained membrane hyperpolarizations. Withdrawal of ACh evoked a transient depolarization. 3. High K+ blocked and low K+ potentiated the two ACh-induced hyperpolarizations. Charybdotoxin (ChTX) attenuated the ACh-induced transient and sustained hyperpolarizations; apamin inhibited only the sustained hyperpolarization. In the combined presence of ChTX and apamin, ACh produced a depolarization. 4. In Ca2+-free solution or in the presence of Co2+ or Ni2+, ACh produced a transient hyperpolarization followed by a depolarization. In BAPTA-AM-treated cells, ACh produced only a depolarization. 5. A low concentration of A23187 attenuated the ACh-induced transient, but not the sustained, hyperpolarization. In the presence of cyclopiazonic acid, the hyperpolarization induced by ACh was maintained after ACh removal; this maintained hyperpolarization was blocked by Co2+. 6. Both NPPB and hypertonic solution inhibited the membrane depolarization seen after ACh washout. Bumetanide also attenuated this depolarization. 7. It is concluded that in RAVEC, ACh produces a two-component hyperpolarization followed by a depolarization. It is suggested that ACh-induced Ca2+ release from the storage sites causes a transient hyperpolarization due to activation of ChTX-sensitive K+ channels and that ACh-activated Ca2+ influx causes a sustained hyperpolarization by activating both ChTX- and apamin-sensitive K+ channels. Both volume-sensitive Cl- channels and the Na+-K+-Cl- cotransporter probably contribute to the ACh-induced depolarization.  (+info)

The distribution of neurons expressing calcium-permeable AMPA receptors in the superficial laminae of the spinal cord dorsal horn. (6/2206)

The superficial dorsal horn is a major site of termination of nociceptive primary afferents. Fast excitatory synaptic transmission in this region is mediated mainly by release of glutamate onto postsynaptic AMPA and NMDA receptors. NMDA receptors are known to be Ca2+-permeable and to provide synaptically localized Ca2+ signals that mediate short-term and long-term changes in synaptic strength. Less well known is a subpopulation of AMPA receptors that is Ca2+-permeable and has been shown to be synaptically localized on dorsal horn neurons in culture (Gu et al., 1996) and expressed by dorsal horn neurons in situ (Nagy et al., 1994; Engelman et al., 1997). We used kainate-induced cobalt uptake as a functional marker of neurons expressing Ca2+-permeable AMPA receptors and combined this with markers of nociceptive primary afferents in the postnatal rat dorsal horn. We have shown that cobalt-positive neurons are located in lamina I and outer lamina II, a region strongly innervated by nociceptors. These cobalt-positive neurons colocalize with afferents labeled by LD2, and with the most dorsal region of capsaicin-sensitive and IB4- and LA4-positive afferents. In contrast, inner lamina II has a sparser distribution of cobalt-positive neurons. Some lamina I neurons expressing the NK1 receptor, the receptor for substance P, are also cobalt positive. These neurons are likely to be projection neurons in the nociceptive pathway. On the basis of all of these observations, we propose that Ca2+-permeable AMPA receptors are localized to mediate transmission of nociceptive information.  (+info)

EPR characterization of axial bond in metal center of native and cobalt-substituted guanylate cyclase. (7/2206)

The nature of the metal-proximal base bond of soluble guanylate cyclase from bovine lung was examined by EPR spectroscopy. When the ferrous enzyme was mixed with NO, a new species was transiently produced and rapidly converted to a five-coordinate ferrous NO complex. The new species exhibited the EPR signal of six-coordinate ferrous NO complex with a feature of histidine-ligated heme. The histidine ligation was further examined by using the cobalt protoporphyrin IX-substituted enzyme. The Co2+-substituted enzyme exhibited EPR signals of a broad g perpendicular;1 component and a g;1 component with a poorly resolved triplet of 14N superhyperfine splittings, which was indicative of the histidine ligation. These EPR features were analogous to those of alpha-subunits of Co2+-hemoglobin in tense state, showing a tension on the iron-histidine bond of the enzyme. The binding of NO to the Co2+-enzyme markedly stimulated the cGMP production by forming the five-coordinate NO complex. We found that N3- elicited the activation of the ferric enzyme by yielding five-coordinate high spin N3- heme. These results indicated that the activation of the enzymes was initiated by NO binding to the metals and proceeded via breaking of the metal-histidine bonds, and suggested that the iron-histidine bond in the ferric enzyme heme was broken by N3- binding.  (+info)

Inhibition of hypoxia-inducible factor 1 activation by carbon monoxide and nitric oxide. Implications for oxygen sensing and signaling. (8/2206)

It has been proposed that cells sense hypoxia by a heme protein, which transmits a signal that activates the heterodimeric transcription factor hypoxia-inducible factor 1 (HIF-1), thereby inducing a number of physiologically relevant genes such as erythropoietin (Epo). We have investigated the mechanism by which two heme-binding ligands, carbon monoxide and nitric oxide, affect oxygen sensing and signaling. Two concentrations of CO (10 and 80%) suppressed the activation of HIF-1 and induction of Epo mRNA by hypoxia in a dose-dependent manner. In contrast, CO had no effect on the induction of HIF-1 activity and Epo expression by either cobalt chloride or the iron chelator desferrioxamine. The affinity of CO for the putative sensor was much lower than that of oxygen (Haldane coefficient, approximately 0.5). Parallel experiments were done with 100 microM sodium nitroprusside, a nitric oxide donor. Both NO and CO inhibited HIF-1 DNA binding by abrogating hypoxia-induced accumulation of HIF-1alpha protein. Moreover, both NO and CO specifically targeted the internal oxygen-dependent degradation domain of HIF-1alpha, and also repressed the C-terminal transactivation domain of HIF-1alpha. Thus, NO and CO act proximally, presumably as heme ligands binding to the oxygen sensor, whereas desferrioxamine and perhaps cobalt appear to act at a site downstream.  (+info)

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TY - JOUR. T1 - Evidence against implant-derived cobalt toxicity. T2 - Case report and retrospective study of serum cobalt concentrations in an orthopedic implant population. AU - Tolan, Nicole V.. AU - Sierra, Rafael J.. AU - Moyer, Thomas P.. PY - 2015/2/1. Y1 - 2015/2/1. N2 - Objectives: Cobalt (Co) exposure has been documented to result in increased erythropoiesis. To evaluate the potential for implant-derived Co toxicity, we examined the relationship between serum Co (sCo) and erythrocyte counts (ERY) in a metal-containing total-hip arthroplasty implant population. Methods: Retrospective review of sCo concentrations identified 77 patients with concomitant ERY. Statistical analysis was performed to determine if there was a significant difference in ERY for patients divided into clinically relevant sCo ranges. A single detailed case review of a patient with a loose mal-positioned acetabular component and significantly elevated sCo was also performed for symptoms thought to arise from Co ...
TY - JOUR. T1 - Redox characteristics of Schiff base manganese and cobalt complexes related to water-oxidizing complex of photosynthesis. AU - Hotchandani, S.. AU - Ozdemir, U.. AU - Nasr, C.. AU - Allakhverdiev, Suleyman. AU - Karacan, N.. AU - Klimov, V. V.. AU - Kamat, P. V.. AU - Carpentier, R.. PY - 1999/2/1. Y1 - 1999/2/1. N2 - In an effort to obtain synthetic analogues of water-oxidizing complex (WOC) of photosystem II (PS II) of plant photosynthesis, a Schiff base manganese and a cobalt complex, employing Niten, a SALEN type ligand, have been prepared. Cyclic and square wave voltammetric measurements have been performed to assess their redox characteristics. Both complexes undergo several reduction processes in cathodic negative potential region at more or less similar potentials. In view of these reductions being independent of the nature of the metal, they are thought to be ligand-localized. Although similar in negative region, a marked difference in the behavior of the complexes is ...
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Building on the idea of a pentapyridine ligand, the Piers group has recently focused on the development of a family of boron-substituted pentadentate ligands (B2Pz4Py). This work will describe the expansion of preliminary research completed by Dr. Denis Spasyuk, involving newly synthesized cobalt complexes coordinated with a dianionic pentadentate phenyl-substituted diborate ligand. Instead of continuing with the phenyl-substituted ligand, the synthetic procedure for the ligand was adapted to make a tolyl-substituted version. The synthesis and characterization of cobalt(II) complexes and their propensity to bind O2 forming a binuclear μ-peroxo cobalt(III) complex was explored. The binding of oxygen was found to be reversible and that the O2 was activated towards protonation and that reduction of the products lead back to cobalt(II). The relevance of this chemistry to the Oxygen Reduction Reaction (ORR) was discussed. The catalytic ability of the complex to reduce oxygen was measured and ...
Workers may be exposed to cobalt during the production of cobalt and cobalt salts, in the production of alloys and hard metal, drying agents, pigments and catalysts, and during diamond polishing. World production of refined cobalt has increased steadily over the last decade, due partly to new operations and partly to a net increase in production by established producers [1]. World cobalt mine production in 2001 was 36,700 tons and the cobalt refinery production 38,400 tons [2]. The respective numbers in 2016 were 123,000 tons and 91,300 tons [3]. In the United States, more than a million workers are potentially exposed to cobalt and its compounds [4]. In Finland, about 1500 workers (0.1% of employed people) are estimated to be exposed to cobalt or cobalt compounds at work [5].. Different epidemiological studies provide relatively sparse and contradictory data on the carcinogenicity of cobalt to humans. A Swedish study retrospectively followed a cohort of 3000 cobalt workers in 1951-1982 [6]. It ...
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TY - JOUR. T1 - Effect of Cobalt on the Catalytic Properties of Platinum during the Oxidation of CO. T2 - Experimental Data and Quantum-Chemical Simulation. AU - Pichugina, D. A.. AU - Nikitina, N. A.. AU - Kuzmenko, N. E.. AU - Potemkin, D. I.. PY - 2019/10/1. Y1 - 2019/10/1. N2 - Abstract: The oxidation of CO over Pt and Pt-Co catalysts was studied both experimentally and by quantum-chemistry calculations. Density functional theory simulation shows that CO is oxidized on Pt13 via dissociative oxygen adsorption. The calculated activation energy for the dissociation of O2 on Pt13 is 56 kJ/mol. It is found that when a cobalt atom is introduced into the cluster, the activation energy falls for the stages of CO oxidation and the dissociation of O2. Catalytic tests performed on Pt and Pt0.5Co0.5 nanopowders confirm the Pt-Co system displays high activity in the oxidation of CO.. AB - Abstract: The oxidation of CO over Pt and Pt-Co catalysts was studied both experimentally and by quantum-chemistry ...
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In this study, N,N-dimethylaminopropyl methacrylamide (DMAPMAm) homopolymer and DMAPMAm/itaconic acid (DMAPMAm/IA) copolymers were obtained from 60Co-γ radiation polymerization. Gel fraction and percentage of swelling values were calculated through gravimetrical calculations. In order to increase the swelling of the hydrogel, the amount of IA in initial copolymer composition was gradually increased, but it was observed that gelation values were low. The structural and morphological assessments of homopolymer and copolymers were made by means of several techniques including Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy (SEM), and Energy-Dispersive X-ray Spectroscopy (EDS). The cobalt ion (Co2+) removal capacities of hydrogel were investigated by taking into account of the initial metal ion concentration and pH of aqueous medium. When it came to the maximum capacity of values obtained from adsorption experiments by using Co2+ solutions at pH 5, they changed between ...
In order to collect further evidence on the mode of action for cobalt-induced carcinogenicity (see chapter Summary and discussion of carcinogenicity or the endpoint summary in IUCLID section 7.7- Carcinogenicity), further in vitro mechanistic studies were conducted. The aim of these studies was to elucidate the role of genotoxicity, oxidative stress and HIF1a activation, which are recognised key events in cells and tissues after cobalt exposure. In the ToxTracker assay reported by Derr and Brandsma (2019 and Hendriks (2019) mouse embryonic stem (mES) reporter cell lines were exposed to 15 different cobalt substances. The ToxTracker assay is used to identify the biological reactivity and potential carcinogenic properties of these cobalt substances in a single test. The test system monitors activation of specific cellular signalling pathways for detection of the biological reactivity of the cobalt substances. ToxTracker consists of a panel of six different mES GFP reporter cell lines ...
TY - JOUR. T1 - Cobalt ions cross an electrotonic synapse if cytoplasmic concentration is low. AU - Politoff, A.. AU - Pappas, G. D.. AU - Bennett, Michael V. L.. PY - 1974/8/16. Y1 - 1974/8/16. UR - http://www.scopus.com/inward/record.url?scp=0016138697&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0016138697&partnerID=8YFLogxK. U2 - 10.1016/0006-8993(74)90466-1. DO - 10.1016/0006-8993(74)90466-1. M3 - Article. C2 - 4844459. AN - SCOPUS:0016138697. VL - 76. SP - 343. EP - 346. JO - Brain Research. JF - Brain Research. SN - 0006-8993. IS - 2. ER - ...
Our previous study demonstrated the direct involvement of the HIF-1α subunit in the promotion of cardiac differentiation of murine embryonic stem cells (ESCs). We report the use of cobalt chloride to induce HIF-1α stabilization in human ESCs to promote cardiac differentiation. Treatment of undifferentiated hES2 human ESCs with 50μM cobalt chloride markedly increased protein levels of the HIF-1α subunit, and was associated with increased expression of early cardiac specific transcription factors and cardiotrophic factors including NK2.5, vascular endothelial growth factor, and cardiotrophin-1. When pretreated cells were subjected to cardiac differentiation, a notable increase in the occurrence of beating embryoid bodies and sarcomeric actinin-positive cells was observed, along with increased expression of the cardiac-specific markers, MHC-A, MHC-B, and MLC2V. Electrophysiological study revealed increased atrial-and nodal-like cells in the cobalt chloride-pretreated group. Confocal calcium ...
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From: Steven J. Hill ,[email protected], Signed-off-by: Steven J. Hill ,[email protected], --- arch/mips/cobalt/setup.c , 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c index ec3b2c4..3fdd449 100644 --- a/arch/mips/cobalt/setup.c +++ b/arch/mips/cobalt/setup.c @@ -15,9 +15,9 @@ #include ,linux/ioport.h, #include ,linux/pm.h, -#include ,asm/bootinfo.h, #include ,asm/reboot.h, #include ,asm/gt64120.h, +#include ,asm/fw/fw.h, #include ,cobalt.h, @@ -97,21 +97,9 @@ void __init plat_mem_setup(void) void __init prom_init(void) { - unsigned long memsz; - int argc, i; - char **argv; + fw_init_cmdline(); - memsz = fw_arg0 & 0x7fff0000; - argc = fw_arg0 & 0x0000ffff; - argv = (char **)fw_arg1; - - for (i = 1; i , argc; i++) { - strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE); - if (i , (argc - 1)) - strlcat(arcs_cmdline, , COMMAND_LINE_SIZE); - } - - add_memory_region(0x0, memsz, BOOT_MEM_RAM); + ...
NanoMolar Nickel / Cobalt Assay Kit The NanoMolar Nickel / Cobalt Assay Kit is for measurement of nanomolar concentrations of nickel or cobalt (10 nM - 500 nM). The assay is based on the principle that binding the fluorescence dye NMA with nickel or cobalt ions results in decrease of the fluorescence intensity (emission 535 nm, excitation 485 nm). Other metal ions including Mg2+, Ca2+, Zn2+, Mn2+, Al3+, Cu2+ and Ag+ give much lower assay sensitivity. Chelators such EDTA and thiol compounds bind strongly some of the metal ions and should be avoided in the assay.. The assay kit can be used for high-throughput measurements of nickel or cobalt concentrations in biological samples or environmental water samples. The kit can also be used for biochemical assays of enzyme assays associated with nickel or cobalt metabolism.. ...
As previously discussed, cobalt has a low bioaccumulation potential in both aquatic and terrestrial pathways (see section 4.4) and as an essential element for plants and animals (Gal et al 2008) homeostatic mechanisms maintain cobalt concentrations in tissues and body fluids within ideal levels by actively accumulating or depurating cobalt depending on metabolic requirements. Therefore there is no indication of a bioaccumulation potential, hence secondary poisoning is not considered relevant. The PNECoral values represent dietary predicted no effect concentrations, below which food concentrations are not expected to pose a risk to birds or mammals. Although a PNECoral value is not relevant for cobalt, an approximate no effect dietary concentration was estimated for both bird and mammal pathways using a Tier 1 approach according to ECHA TGD R.7.13. In this approach, a default assessment factor was applied to the lowest available NOEC identified for both the bird (7.5.1) and mammal (7.5.2) ...
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Cobalt ions can enhance the generation of reactive oxygen species (ROS), which may be the reason for cobalt toxicity. This study aimed to determine whether Co 2+ toxicity in goldfish is related to induced oxidative stress in gills, heart and spleen, and to assess responses of antioxidant systems. Exposure of goldfish to 50, 100 and 150 mg L -1 of Co 2+ for 96 h elevated total hemoglobin in blood by 23, 44 and 78%, respectively. In gills, cobalt exposure enhanced lipid peroxide levels and activities of primary antioxidant enzymes; superoxide dismutase (SOD) rose by 125% and glutathione peroxidase (GPx) increased by 53-296%. Glutathione-S- transferase (GST) activity also increased by 117-157% and glucose-6-phosphate dehydrogenase (G6PDH) enhanced by 46-96%. Heart showed limited effects of fish exposure to 50 or 100 mg L -1 of Co 2+, but the exposure to 150 mg L -1 of Co 2+ elevated concentrations of lipid peroxides by 123% and activities of GPx by 98% and SOD by 208%. The most substantial effects ...
To determine the effect of different types of cobalt supplementation on dairy cow performance and indicators of cobalt status and the benefits of vitamin B12 supplementation in cobalt restricted cows.. Expected Outcomes. ...
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Coordination chemistry research on metal complexes of Schiff bases has shown their potential for applications based on their biological activities, catalytic reactions and as photoelectric materials. 4-Chloro-2-(quinolin-8-yliminomethyl)-phenol (HClQP) is a Schiff base synthesized by condesation of 8-aminoquinoline and 5-chloro-2-hydroxybenzaldehyde. It can be used as an N,N,O-tridentate ligand for the synthesis of new metal complexes of Schiff bases. However, few crystal structural studies on the metal complexes of HClQP have so far been reported (Neves et al., 2009; Vasilchenko et al., 1999). In the present work, we report the first cobalt(III) complex of HClQP in cationic form, with a simple cobalt(II) complex in anionic form as the counterion (Fig. 1).. Crystal structure refinement of the title complex revealed that half of the cobalt(II) of the starting material was oxidized to cobalt(III) under the solvothermal synthesis conditions. The cobalt(III) is six-coordinated by four N atoms and ...
TY - JOUR. T1 - Highly Active Oxygen Evolution on Carbon Fiber Paper Coated with Atomic-Layer-Deposited Cobalt Oxide. AU - Choi, Hyung Jong. AU - Han, Gwon Deok. AU - Bae, Kiho. AU - Shim, Joon Hyung. PY - 2019/3/20. Y1 - 2019/3/20. N2 - In this work, we evaluated the oxygen evolution performance of cobalt oxide (CoO x )-coated carbon fiber paper in electrochemical water splitting. For a uniform coating of CoO x layers along the carbon fiber paper, the atomic layer deposition (ALD) technique was applied. We achieved a uniform and conformal coating of atomic-layer-deposited CoO x (ALD-CoO x ) on the carbon fiber paper. The overpotential for oxygen evolution measured for the optimized ALD-coated carbon fiber paper was as low as 343 mV at 10 mA cm -2 , which is competitive with the activity of state-of-the-art CoO x prepared on electrodes with large surface areas. Oxygen evolution is not enhanced after a critical thickness, about 28 nm in our study, is reached. The optimal thickness of the ALD-CoO ...
TY - JOUR. T1 - Confinement of Ultrasmall Cobalt Oxide Clusters within Silicalite-1 Crystals for Efficient Conversion of Fructose into Methyl Lactate. AU - Yan, Yue. AU - Zhang, Zihao. AU - Bak, Seong Min. AU - Yao, Siyu. AU - Hu, Xiaobing. AU - Shadike, Zulipiya. AU - Do-Thanh, Chi Linh. AU - Zhang, Feng. AU - Chen, Hao. AU - Lyu, Xilei. AU - Chen, Kequan. AU - Zhu, Yimei. AU - Lu, Xiuyang. AU - Ouyang, Pingkai. AU - Fu, Jie. AU - Dai, Sheng. PY - 2019/3/1. Y1 - 2019/3/1. N2 - Chemocatalysis of sugars to methyl lactate (MLA) exhibits great advantages over the conventional fermentation approach because of its higher productivity and cost-effective separation process. However, widely used supported metal oxide catalysts suffer from deactivation resulting from sintering during the reaction and removal of coke at high temperatures. Herein, we report ultrasmall cobalt oxide clusters (∼1.7 nm) stabilized within silicalite-1 crystals catalyst ([email protected]), exhibiting superior catalytic ...
Cobalt poisoning can occur when you are exposed to large amounts of it. In this curious study, the doctors selected patients with a pre-operative known sensitisation to chromium, cobalt, nickel, or a cement component for a post-operative allergic reaction. Never think about my knee. Some of the metal ions (e.g. The pragmatic approach adopted by most contact dermatologists for patients known to be allergic to nickel, cobalt or chromium and who require joint replacement is to recommend prostheses made of titanium-based alloys. Very small amounts are needed for animals and humans to stay healthy. FINAL DIAGNOSIS. Doctors in Finland have released a new troubling study on the release of metal debris from knee replacement hardware. Epub 2015 Nov 2.[Pubmed]. The most common metal ions found in knee replacement implants that can cause hypersensitivity include nickel, cobalt, and chromium. Cobalt poisoning can result in nervous system disorders beginning with tremors in the hand, ringing in the ears, ...
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Cobalt Iron is the global leader in SaaS-based enterprise data protection. The company was founded in 2013 to fundamentally change the way the world thinks about data protection. Through analytics and automation, Cobalt Iron enables enterprises to transform and optimize legacy backup solutions into a simple cloud-based architecture. By leveraging the cloud, Cobalt Iron reduces overall capex by more than 50 percent while eliminating backup failures and inefficiencies. Processing more than 7 million jobs a month for customers in 44 countries, Cobalt Iron delivers modern enterprise data protection for enterprise customers.. Partnering with DLT, through analytics and automation, Cobalt Iron enables enterprises to transform and optimize legacy backup environments into a simple and secure cloud-based solution.. ...
By Peter Kennedy. The Democratic Republic of Congo has granted a monopoly to a new state-owned company that is being set up to buy and market all cobalt in the country that is not mined industrially.. According to a Reuters report, the move is a bid to control the entire artisanal supply chain and boost government revenue through control of prices. Another aim is to exert greater state oversight of working conditions in the artisanal sector, which has been plagued by instances of child labour and other abuses.. That has prompted a number of mining and exploration companies in Canada to try and capitalize on the DRCs image problem by developing projects in North America. They include companies like Fortune Minerals Ltd. [FT-TSX], Canada Cobalt Works Inc., [CCW-TSXV], and First Cobalt Corp [FCC-TSXV, ASX; FTSSF-OTCQB].. Cobalt, with the exception of silver-cobalt ores from the Cobalt Mining Camp in northeast Ontario, is produced primarily as a by-product of copper and nickel and plays a key role ...
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Does anyone have any experience doing this? , ,I have been beating my head trying to get this thing to work because the ,RAQ2 Apache is customised and doesnt take kindly to trying to add mod_proxy ,etc. No one in the RAQ2 user groups seems to know how to get this to work so ,I thought I would see if anyone in Zope land knew. , ,I have read the SSL page at ,http://www.zope.org/Members/unfo/apache_zserver_ssl but it isnt quite as ,straight forward on the Cobalt server. We run some of our Zope hosting services on Cobalt RaQ3s, with Apache in front of Zope. Im unsure of the details of why, but the way its setup now is we compiled our own version of Apache which is what listens on port 80 of the RaQ, and the original Apache that came with the RaQ listens on another port (so the management stuff still works). Simon -- --------- My opinions are my own, NIPs opinions are theirs ---------- Simon J. Coles Email: [EMAIL PROTECTED] New Information Paradigms Work Phone: +44 1344 753703 ...
http://www.championtrees.org/topsoil/b12coblt.htm From the article: B12 is the only vitamin synthesized solely by certain microorganisms many of which are abundant in soil. And the only vitamin containing a trace element: cobalt. B12 owes its chemical name cobalamin to the cobalt at the center of its molecular structure. Humans and all vertebrates require cobalt, though its assimilated only in the form of B12. Cobalt is important in the plant world. Bacteria on root nodules of
http://www.championtrees.org/topsoil/b12coblt.htm From the article: B12 is the only vitamin synthesized solely by certain microorganisms many of which are abundant in soil. And the only vitamin containing a trace element: cobalt. B12 owes its chemical name cobalamin to the cobalt at the center of its molecular structure. Humans and all vertebrates require cobalt, though its assimilated only in the form of B12. Cobalt is important in the plant world. Bacteria on root nodules of
The catalytic performances of different commercial cobalt oxides(CoxOy, i.e., Co2O3, Co3O4, and CoO) for peroxymonosulfate(PMS) activation in dye degradation were compared in this study. The CoO/PMS system exhibited the highest catalytic oxidation performances with more than 96% methylene blue(MB) removal at 90 min. The concentration of dissolved cobalt ions from CoO was 1.474 mg/L at neutral pH and 5.231 mg/L at acidic pH at 90 min which accounted for the high MB removal and CoO activated PMS homogeneously compared to the associated CoSO4/PMS. Co3O4 and Co2O3 exhibited similar catalytic performances and characteristics. The MB removal in Co3O4/PMS and Co2O3/PMS system were more than 88% at neutral pH and over 64% at acidic pH, respectively, in 90 min. The concentration of dissolved cobalt ions from Co3O4 and Co2O3 was less than 0.018 mg/L at neutral pH and 0.036 mg/L at acidic pH at 90 min. The MB removal achieved by Co3O4/PMS and Co2O3/PMS were approximately three times higher than that ...
Nanomaterials in general and cobalt nanoparticles (CoNPs) in particular are of great interest not only because of their multiple applications and environmental impact, but also for their potential toxicity and safety issues. Since most of the mechanisms involved in the toxicity of CoNPs are not very well kno
Cobalt Poisoning from Hip Implants Cobalt Chrome is used in the manufacture of various hip replacement components. A number of studies have confirmed that cobalt and chromium ions are released into the surrounding bone and tissue causing local detrimental effects. However, Cobalt and Chrome ions are toxic to other tissues and body functions. Review of…
Cobalt Poisoning from Hip Implants Cobalt Chrome is used in the manufacture of various hip replacement components. A number of studies have confirmed that cobalt and chromium ions are released into the surrounding bone and tissue causing local detrimental effects. However, Cobalt and Chrome ions are toxic to other tissues and body functions. Review of…
A multi-site microkinetic model for the Fischer-Tropsch synthesis (FTS) reaction up to C2 products on a FCC cobalt catalyst surface is presented. This model utilizes a multi-faceted cobalt nanoparticle model for the catalyst, consisting of the two dominant cobalt surface facets Co(111) and Co(100), and a ste Catalysis for Fuels
1885 10s Cobalt (White paper, I.R. Official). Very fine and fresh unused o.g. example of this rare departmental issue lettered BC. 2006 RPS Cert. Spec. L8(3).
Nominated Substances: Cobalt sulfate. Nomination Date: 07/00/1979 Nominator: NCI Rationale: Cobalt sulfate was nominated by the NCI in July 1979 following a review of the metals class because of high suspicion of carcinogenicity based upon the induction of local sarcomas by other cobalt compounds and widespread usage. NTP Principles: Pre 1993 - 1, 4, 8 Status: Selected ...
Adverse Reaction to Metal Debris (ARMD) is still a major reason for revision surgeries in patients with metal-on-metal (MoM) hip replacements. ARMD consists of a wide range of alterations in periprosthetic tissues, most important of which are metallosis, inflammation, pseudotumors and necrosis. Studies investigating histopathological findings and their association to implant wear or indirect measures of wear have yielded inconsistent results. Therefore, we aimed to investigate bearing surface wear volume, whole blood and synovial fluid metal ion concentrations, histopathological findings in periprosthetic tissues and their associations. Seventy-eight patients with 85 hips revised for ARMD were included in the study. Prior to revision surgery, all patients had whole blood chromium and cobalt ion levels assessed. In revision surgery, a synovial fluid sample was taken and analyzed for chromium and cobalt. Periprosthetic tissue samples were taken and analyzed for histopathological findings. Explanted
The occurrence of pseudotumours following metal-on-metal hip resurfacing arthroplasty (MoMHRA) has been associated with high serum metal ion levels and consequently higher than normal bearing wear. Measuring ground reaction force is a simple method of collecting information on joint loading during a sit-to-stand (STS). We investigated vertical ground reaction force (VGRF) asymmetry during sit-to-stand for 12 MoMHRA patients with known serum metal ion levels. Asymmetry was assessed using two methods: a ratio of VGRF for implanted/unimplanted side and an absolute symmetry index (ASI). It was found that subjects with high serum metal ion levels preferentially loaded their implanted sides. The difference between the two groups was most apparent during the first 22% of STS. VGRF ratio showed significant and strong correlation with serum metal ion levels (Spearmans rho = 0.8, p = 0.003). These results suggest that individual activity patterns play a role in the wear of MoMHRA and preferential loading of an
Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones.: Indications exist that paramagnetic calcium phosphates may
Dont worry about hexamine cobalt chloride (Im assuming that you are doing some sort of 5-RACE). I did the type of ligation you are talking about recently using only the 10xbuffer provided with the buffer (50 mM Tris-HCl (pH 7.8), 10 mM MgCl2, 10 mM DTT and 1 mM ATP). I precipitated the oligo and ssDNA together and performed the ligation reaction in a minimal volume over night at 37C using 40 units of RNA ligase. It worked fine. But in other application I dont know whether hexamine cobalt chloride makes any difference... Marieluise Kirchner wrote: , used anyone the T4 RNA ligase for ssDNA / oligonucleotide-ligation? in , the buffer of my protocoll hexamine cobalt chloride is used. Why? Is the , effect really that big? Has hexamine cobalt chloride any bad effects in , further reactions like PCR or ligation into a vector? , The question is - should i use this hexamine cobalt chloride or better , not? , , thanks and a nice evening , , marie , , --- ...
Ischemia-modified albumin (IMA) is assumed “N-terminal modified” albumin which is generated immediately following myocardial ischemia. The diagnosis of IMA is based on reduced cobalt binding affinity to albumin which is attributed mainly to incapability of cobalt to bind at albumin’s modified N-terminus. Although the albumin cobalt binding test was accepted as a potentially powerful marker for discriminating acute coronary syndrome from nonischemic chest pain, its usefulness has been brought into question in recent years. Patients with acutely ischemic myocardium exhibit a rapid increase in serum levels of fatty acids (FAs). Almost all released FAs are strongly bound to albumin which create conformational changes in the protein with resultant reduced cobalt binding affinity. There is a clear metabolic and temporal relationship between IMA measured via albumin cobalt binding testing and serum levels of FAs. In line with what has been suggested recently in the literature, we conclude
A highly selective and sensitive spectrophotometric determination of cobalt (II) was developed. 7-Nitroso-8-hydroxyquinoline-5-sulfonic acid sodium salt was used as the chromogenic reagent for color development. Although other metals form colored chelates with the ligand, it was possible to develop a selective method using McIlvaines pH 8 citric acid-phosphate buffer. Under these conditions, iron(II), iron (III), copper (II), zinc (II), and manganese (II), minerals likely to be compounded with cobalt (II) in geriatric formulations, do not interfere with the precision of the method or the color development. Calcium (II) and magnesium (II) do not form colored chelates with the used ligand. Hormones, vitamins, and additives likely to be present along with the cobalt ion in pharmaceutical formulations do not interfere. The sensitivity is 0.37 mug of cobalt (II)/ml of sample solution. ...
While the individual need for dosage of nickel and cobalt in anaerobic digesters has been established, together with the biochemistry underpinning such need; their co-requisite in anaerobic digestion of acetate has not been extensively studied. In addition, the balance between the catalytic and toxic concentrations of nickel and cobalt in anaerobic acetate digesters is not well documented. The aim of this study was to examine and evaluate the effects of individual and combined dosage of nickel and cobalt on biogas production as well as on methanogenic population balance of a mesophilic (37°C) anaerobic acetate digester so as to determine their catalytic and toxic concentrations. Four semi-CSTR digesters were daily fed acetate at a loading rate of 1.8 g L-1 d-1 and were operated at a HRT of 10 days for this investigation. Co-dosage of nickel and cobalt in anaerobic acetate digesters were found to lead to increased biogas production in an additive manner, with the sole dosage of nickel resulting ...
en] Metallo-beta-lactamases are native zinc enzymes that catalyse the hydrolysis of beta-lactam antibiotics, but are also able to function with cobalt(II) and require one or two nnetal-ions for catalytic activity. The hydrolysis of cefoxitin, cephaloridine and benzylpenicillin catalysed by CoBcII (cobalt-substituted beta-lactamase from Bacillus cereus) has been studied at different pHs and metal-ion concentrations. An enzyme group of pK(a) 6.52 +/- 0.1 is found to be required in its deprotionated form for metal-ion binding and catalysis. The species that results from the loss of one cobalt ion from the enzyme has no significant catalytic activity and is thought to be the mononuclear CoBcII. It appears that dinuclear CoBcII is the active form of the enzyme necessary for turnover, while the mononuclear CoBcII is only involved in substrate binding. The cobalt-substituted enzyme is a more efficient catalyst than the native enzyme for the hydrolysis of some beta-lactam antibiotics suggesting that the ...
Introduction: Over 1 million metal-on-metal (MOM) hip replacements were performed between 2003 and 2010. These prostheses were intended to be more durable than previous models, but have been associated with a higher failure rate. There have also been isolated cases of fulminant cardiomyopathy in patients with very high serum cobalt levels. We screened a cohort of asymptomatic patients with these prostheses for subclinical cardiac abnormalities. Methods: All patients with MOM hip replacements at our centre undergo regular follow-up in the orthopaedic clinic with serum cobalt and chromium levels, and periodic magnetic resonance scanning of the affected joint. We recruited consecutive asymptomatic patients to receive echocardiography and recorded demographic data including age, height, weight, serum cobalt and chromium levels, and date of prosthesis implantation. Echocardiographers were blinded to medical history and laboratory results. The cohort was split into quartiles of serum cobalt. ANOVA, ...
I passed this paper out in the week after students synthesized a series of Werner complexes in the laboratory. Students had been exposed to descriptive inorganic chemistry and periodic trends, symmetry and (rudimentary) group theory prior to this exercise. In the second half of the laboratory session, they had compared the rates of hydration of hexammine, pentammine, and cis-tetrammine chloride cobalt complexes using UV/VIS, so some students were quite familiar with the stability of the hexammine complex. My students had not yet been introduced to ligand field theory, HSAB theory, redox mechanisms, or the 18-electron rule; incorporation of those ideas would be an interesting extension to the activity if your class has already been prepared to discuss those theories. The paper also explicitly mentions the large number of structures in the RCSB protein data bank that make use of cobalt complexation. This could be another option for extending the exercise for an upper-level course.. Most of the ...
This thesis focuses on the study of hydrogen dynamic behavior in a series of proton sponge cations as well as in bis(silyl)hydride organometallic complexes. To understand the dynamic behavior, a new tool, i.e. the three-dimensional vibrational Schrödinger equation has been derived and solved. Three different vibrational patterns for hydrogen motion have been revealed. The classification of proton sponges and bis(silyl)hydride complexes into those with localized and delocalized hydrogen behavior has been proposed. For the organometallic complexes the influence of the vibrational motion of the hydrogen on J(Si−H) spin−spin coupling constants has been studied. Also this thesis presents a study of [Cp*Co(SiR3)2(H)2] cobalt complexes and their iridium analogues to detect possible Si···H interactions. Based on molecular geometries, Wiberg bond indices, and J(Si-H) spin-spin coupling constants, at least two residual Si···H interactions have been detected in cobalt complexes while there are ...
Was the patient in question a drinker of cobalt laced beer? No - but she did have cobalt in her body. She had bilateral DuPuy ASR metal-on-metal hip prostheses that had been placed 5 years and 4 years prior to the heart transplant. She had learned about one year prior to transplantation that the prostheses were being recalled due to a higher than expected failure rate and a protocol for follow up was sent to her. She was advised to get repeat hip imaging and serum cobalt levels done. Pelvic MRI showed reactive areas with fluid collection and the cobalt level was elevated at 287.6 mcg/liter with a reference value of less than 1.0 mcg/liter. The prostheses were removed 11 and 13 months post heart transplantation. She had a complicated course but apparently recovered. Serial cobalt levels were done and 16 months after transplantation remained at 11.8 mcg/liter a significant drop. She also had a chromium level determined at 248.9 mcg/liter about 8 months after transplantation ...
id:5755,name:Brunswick - Cobalt Blue Tuxedo,slug:brunswick-cobalt-blue-tuxedo,date_created:{date:2020-05-14 11:10:00.000000,timezone_type:3,timezone:America\/Chicago},date_modified:{date:2020-05-14 12:25:55.000000,timezone_type:3,timezone:America\/Chicago},status:publish,featured:false,catalog_visibility:visible,description:,short_description:The Cobalt Blue Brunswick tuxedo is the ideal suit for anyone that wants to wow their fellow party goers. Made from a lightweight comfort wool, you\u2019ll be the best looking and the most comfortable at your prom, homecoming, wedding, or any other special occasion. This blue tuxedo features matching flat front pants, a two button front closure, and a self framed notch lapel, giving it a classic look. The Cobalt Blue Brunswick comes equipped with flap pockets and a side vented back. A matching vest for the Cobalt Blue Brunswick tuxedo is available. Available in both adult and child sizes.\r\n\r\nRental price ...
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Cobalt increases the red cell mass in both man and animals by increasing the production of erythropoietin. Since meat-type chickens can develop pulmonary hypertension from increased erythropoiesis and polycythaemia, two trials were conducted to inves
Several cobalt complexes with tripodal chelating ligands Tp and Tp* (Tp = tris(pyrazolyl)borate; Tp* = tris(3,5-dimethyl-pyrazolyl)borate) were synthesized by treating the homoscorpionates of the first generation with CoBr2 under different conditions. These complexes were characterized with X-ray crystallographic determination as well as IR, NMR, MS, and UV-vis spectroscopies. Reaction of KTp with CoBr2 in THF afforded an unprecedented trinuclear Co(II) complex [TpCo(Hpz)Br]2(CoBr2) (1) with Tp as terminal ligands, as well as an oxidized side-product (Tp2Co)(Co2Br6) (2). The terminal Co(II) centers of (1) are octahedrally coordinated while the Co(II) in the bridging unit has a distorted tetrahedral geometry, holding a neighboring Co···Co distance of 3.472 Å. Reaction of KTp* with CoBr2 afforded half-sandwich Tp*CoBr (4) with pseudotetrahedrally coordinated Co(II) center, which is accessible to other donors. Mononuclear Tp*CoSPh (7) and dinuclear (Tp*Co)2O2(pz)2 (8) were prepared through ...
Rights: This volume was digitized and made accessible online due to deterioration of the original print copy. If you are the author of this work and would like to have online access removed, please contact the Library Administration Office, 785-532-7400, [email protected] ...
Earlier this month, the U.S. Department of Health and Human Services released the 14th Report on Carcinogens (RoC). It contained newly reviewed substances that are known or reasonably anticipated to cause cancer in humans. Included in this list was the metallic element cobalt and cobalt compounds that release cobalt ions in vivo., , , , The National Toxicology Program (NTP), an interagency program whose mission is to evaluate agents of public health concern by developing and applying tools...
Page contains details about nickel cobalt oxide/gadolinium-iron alloy film on silicon wafer . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
The design of a catalyst for one of the most important electrocatalytic reactions, the oxygen reduction reaction (ORR), was done following the most recent guidelines of theoretical studies on this topic. Aim of this work was to achieve a synergic effect of two different metals acting on different steps of the ORR. The catalytic activity of Ag, already known and characterized, was enhanced by the presence of a monolayer of cobalt subdivided into nanosized islands. To obtain such a controlled nanostructure, a novel method utilizing self-assembled monolayers (SAMs) as templates was employed. In a recent study, we were able to perform a confined electrodeposition of cobalt onto Ag(111) in a template formed by selectively desorbing a short-chain thiol (3-mercaptopropionic acid, MPA) from binary SAMs using 1-dodecanthiols (DDT). [32] This method allows for an excellent control of the morphology of the deposit by varying the molar ratio of the two thiols. Because cobalt does not deposit on silver at an ...
This market research report examines the foreign trade of Kazakhstan and its perspectives on the global market for cobalt oxides and hydroxides.
This market research report examines the foreign trade of Romania and its perspectives on the global market for cobalt oxides and hydroxides. The
The report firstly introduced the Lithium Cobalt Oxides basics: definitions, classifications, applications and industry chain overview; industry policies and plans; product specifications; manufacturing processes; cost structures and so on. Then it analyzed the worlds main region market conditions, including the product price, profit, capacity, production, capacity utilization, supply, demand and industry growth rate etc. In the end, the report introduced new project SWOT analysis, investment feasibility analysis, and investment return analysis ...
TY - JOUR. T1 - Cation-driven electron transfer involving a spin transition at room temperature in a cobalt iron cyanide thin film. AU - Sato, O.. AU - Einaga, Y.. AU - Iyoda, T.. AU - Fujishima, A.. AU - Hashimoto, K.. PY - 1997/5/15. Y1 - 1997/5/15. N2 - The electronic structure of a cobalt iron cyanide thin film, Na0.4Co1.3[Fe(CN)6]5H2O, was switched from FeIII(low spin)-CN-CoII(high spin) to FeII(low spin)-CN-CoIII(low spin) by exchanging cations in interstitial sites from Na+ to K+. The reverse process was also induced by replacing Na+ with K+. That is, the alkali cations in the interstitial sites dominate the electronic and spin states of the host compound. This type of switching phenomenon can be achieved by choosing a compound with both electronic degeneracy and zeolitic properties.. AB - The electronic structure of a cobalt iron cyanide thin film, Na0.4Co1.3[Fe(CN)6]5H2O, was switched from FeIII(low spin)-CN-CoII(high spin) to FeII(low spin)-CN-CoIII(low spin) by exchanging cations in ...
Manufacturer of Cobalt (ii) Chloride Hexahydrate, Suppliers of Cobalt (ii) Chloride Hexahydrate, Dealers of Cobalt (ii) Chloride Hexahydrate in UAE
Manufacturer of Cobalt (ii) Chloride Anhydrous, Suppliers of Cobalt (ii) Chloride Anhydrous, Dealers of Cobalt (ii) Chloride Anhydrous in Qatar
Manufacturer of Cobalt (ii) Citrate Dihydrate, Suppliers of Cobalt (ii) Citrate Dihydrate, Dealers of Cobalt (ii) Citrate Dihydrate in Bahrain
It is with great sadness that I have to announce the following: I will be moving forward with Cobalt without my brother Phil. His recent activities have made it impossible for the two of us to continue on a creative path. We started Cobalt 12 years ago, and our music has carried us through many storms. I am extremely proud of what we have done. But our ideals no longer match, and it is time to keep going. Ive been working rigorously on the material for Slow Forever, and I am set to enter the studio in June 2015 to begin tracking. The loss of Phil is a devastating blow, but I cant let what has happened stop me from completing my work. I am still unclear as to who will be doing the vocals on the album. I have some people in mind. Or I may do them myself. Well see. But it is ultimately sad to lose Phils relentless presence and savage force. More will be posted as it develops. Thank you to everyone who has supported Cobalt over the years and continues to support the band ...
Used 2009 Chevrolet Cobalt: Take a look at this used 2009 Chevrolet Cobalt for sale in SASKATOON. This 2009 Chevrolet Cobalt is available for sale in our Used Car Classifieds.
Freshwater: From the database of chronic cobalt toxicity to freshwater invertebrates, 55 individual EC10 or NOEC values for 6 different individual species were reported. The NOEC/L(E)C10 ranged from 1.4 µg/L to 45 µg/L for Ceriodaphnia dubia exposed to a range of water types (CDI 2010i). The table below represents the EC10 values of high quality studies used for the derivation of HC5 and aquatic freshwater PNEC. Where multiple data exist for a given species (,5), e.g., Ceriodaphnia dubia, the geometric mean of the available EC10s for the most sensitive endpoints from each test were used. Table X. High quality studies used for derivation of the HC5and freshwater PNEC ...
CAUTION Some of these materials are toxic in their dry unfired or fired state. You should always use a dust mask when working with these materials. We have an inexpensive, Toxic Dust Mask available. Also, Material Safety Data Sheets are available, for any material youve purchased from us. These materials have always been potentially harmful, so let s get serious about safe handling.. SHIPPING: Raw materials are relatively inexpensive, but are heavy. In some cases shipping may cost more than the product ordered. When the cost of the material ordered is equal to or less than the amount of the shipping, there may be a delay, to confirm that you still want your order shipped ...
The absorption spectrum of cobalt(II)-substituted Aeromonas aminopeptidase is markedly perturbed by the presence of equimolar concentrations of D-amino acid hydroxamates and acyl hydroxamates that have previously been shown to be powerful inhibitors of this enzyme (Wilkes, S. H., and Prescott, J. M. (1983) J. Biol. Chem. 258, 13517-13521). D-Valine hydroxamate produces the most distinctive perturbation, splitting the characteristic 527 nm absorption peak of the cobalt enzyme to form peaks at 564, 520, and 487 nm with molar extinction values of 126, 98, and 67 M-1 cm-1, respectively. A qualitatively similar perturbation, albeit with lower extinction values, results from the addition of D-leucine hydroxamate, whereas D-alanine hydroxamate perturbs the spectrum, but does not evoke the peak at 564 nm. In contrast, hydroxamates of L-valine and L-leucine in concentrations equi-molar to that of the enzyme produce only faint indications of change in the spectrum, but the hydroxamates of several other L-amino
GST Rates & HSN Codes for Cobalt,Magnesium,Bismuth Etc - base metals, namely, Tungsten, Molybdenum, Tantalum, Magnesium, Cobalt mattes, - Chapter 81
2P-158 Removal of Cesium, Cobalt, and/or Strontium, from Aqueous Solution, Using Microbial Cell or Biomass2P-158 Removal of Cesium, Cobalt, and/or Strontium, from Aqueous Solution, Using Microbial Cell or BiomassAN10549378 ...
The pilot store for a new technology retailing concept is getting a low-key opening in Reading on 22 December.. The IT Works is a collaboration between electrical retailer Comet and BT and is billed as the UKs first total technology centre. Design work is by Cobalt, which merged with The Jenkins Group this autumn. Cobalt created the interiors, logo, graphics and uniforms and is now working on marketing and communications.. The concept, which offers a total communications solution, was researched in the US. It will cater for knowledgeable and discerning customers.. The Reading concept will be tested for six months before further stores are opened.. ...
Our beautiful |strong|32 ounce EZ Cap Cobalt Flip Top Bottles|/strong| give your craft beverage a distinct edge with eye-catching cobalt glass, an iconic shape and secure flip top lids. This is a favorite bottle for many craft beverages - coffees and teas to kombucha, craft beers, ciders and more. The spacious print area showcases your logo well. Includes flip top lids. NO SETUP CHARGES! Case Pack: 12 pieces Case Weight: 21 lbs. Piece Capacity: 32 oz. Glassware capacities are approximate and should not be used as a standard of measure. For more than two imprint colors contact us. Exact quantity shipments are not guaranteed without an additional charge. Orders may be shipped over or under by 5% of the quantity ordered. If you need an exact quantity, please notify your Account Manager when you receive your Order Confirmation. Get the perfect blend with Grandstand coffee products.
If you live in a remote location near Cobalt ID , you have exciting new rural internet options. Since the launch of the Viasat-2 satellite in 2017, Viasat (formerly Exede) offers internet plans with download speeds up to 100 Mbps in some parts of the United States. Other areas have top-tier Viasat satellite internet plans offering 25 Mbps, 30 Mbps or 50 Mbps downloads-all fast enough to be considered high-speed broadband internet. Even Viasat internet plans with priority data thresholds have unlimited data, although your internet traffic may slow down once you reach your data cap. Rural internet options in Lemhi County used to be limited to local internet providers using legacy copper DSL lines. DSL internet was slow, but it was a step up from dial-up. Settle no more! With new rural internet options from Viasat, come new entertainment and work options. When you get Viasat high-speed satellite internet service, you can enjoy streaming video, listening to internet radio and scrolling on social ...
Buy Irwin® Black Oxide Cobalt HSS 5 pcs 305 LH Mechanics Length Drill Bit Set, 5/64 - 1/4 in By 1/32 at Staples low price, or read our customer reviews to learn more now.
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This magnificent off-road vehicle has made its mark in the 23 foot segment. Yes, she is expansive, and then some, but the Cobalt R3 is much more than your typical 23 footer.. Let us begin with her physique. The R3 exterior profile is sleek and low. The transom, platform design and aft sunpad are sculpted beautifully creating a smooth and sexy profile. The sunpad backrest is convertible, and the rumble seat is simple and effective.. As we step aboard through the walk-through transom, you will notice the cockpit has an interior beam measurement that is over a foot wider than any competitive runabout. This is no illusion. This interior expansion, Free Space Reclamation, is exactly what Cobalts build process creates. It is most noticeable in the cockpit, which is adorned with seating that wraps around the transom and the port side. The wrap-around yacht style seating is exclusive to a boat her size. Notice the attention to detail in the upholstery with the stitching in perfect harmony. The design ...
Cobalt NITRICUM(Nitrate of Cobalt. Pathogenesis of G. Maring (1955).MENTAL SYMPTOMS OR Pathogenesis ADE Cobaltum NITRICUM1 - () Excitability and overactivity, followed in a second period of inhibition and general depression. Depression, difficulty concentrating (a headache). Sad awakening (with little memory). Bosco.
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The official list of the long running Tuesday night Cobalt Café Open Poetry Reading hosted since 1994 by Los Angeles Poet Rick Lupert. Join this list for regular updates on happenings with the reading...upcoming featured guests and special Cobalt Café open reading events.
The official list of the long running Tuesday night Cobalt Café Open Poetry Reading hosted since 1994 by Los Angeles Poet Rick Lupert. Join this list for regular updates on happenings with the reading...upcoming featured guests and special Cobalt Café open reading events.
Buy Cobalt Blue Metallic 95.31.015 Touch Up Paint for Your 1995 Rolls-Royce All Models. Cobalt Blue Metallic 95.31.015 is available in a paint pen, spray paint can, or brush bottle for your 1995 Rolls-Royce All Models paint repair.
Module Name: src Committed By: tsutsui Date: Thu Oct 30 00:02:16 UTC 2008 Modified Files: src/sys/arch/cobalt/conf: INSTALL Log Message: Our ever glowing kernel reaches the firmware limit, so disable several options to shrink the INSTALL kernel that will be used as an emergency kernel loaded by the firmware directly. To generate a diff of this commit: cvs rdiff -r1.35 -r1.36 src/sys/arch/cobalt/conf/INSTALL Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files ...
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Cobalt(0001)[edit]. Graphene on cobalt(0001) is grown similarly as on a Ni substrate.[68] A Co(0001) film is first grown on a ...
"2013 Cobalt Writing Prizes". Cobalt. 2013-12-04. Retrieved 2017-06-06. Green, Alyssa (2017-05-15). "'Things to Do When You're ... The title story was awarded the Cobalt Writing Prize for Fiction on its original publication in 2013. Many of the stories ...
Cobalt". Journal of Physics D: Applied Physics. 2 (101). doi:10.1088/0022-3727/2/1/315. CS1 maint: Multiple names: authors list ...
Cobalt complexes have been of long-standing interest in inorganic chemistry because they are numerous, easily prepared, and ... It was partly on the basis of his study of cobalt coordination chemistry that Alfred Werner was awarded the Nobel Prize in ... The complex is prepared with a two-step process starting with oxidizing a solution of cobalt chloride and ammonia. 2 CoCl2,6H2O ... Williams, Gregory M; Olmsted, John, III; Preksa, Andrew P., III (1989). "Coordination complexes of cobalt: inorganic synthesis ...
"Cobalt Application Security Platform". Cobalt. Retrieved 2016-07-30. CenturyLink. "CenturyLinkVoice: Why Companies Like ...
Cobalt; built by Port Arthur, launched 17 August 1940 and completed 25 November 1940. Sold for mercantile service 1946, ...
... cobalt compounds; and uranium compounds. In aerobic organisms, a complex mechanism has been developed to use the oxygen in air ...
Now working as Cobalt Blue, his rage and jealousy over his twin "stealing his life" fuels the gem, which can siphon off the ... "Cobalt Blue". The DC Comics Encyclopedia. p. 86. "Flash #71". The Grand Comics Database. comics.org. Retrieved 2012-06-02. Ge, ...
He is best known for his work on Cobalt-60, Miami Mice, and The Lizard of Oz. Bodé has also worked for Heavy Metal magazine and ... The Cobalt 60 saga was completed and was published as four graphic novels with Eastman's company Tundra Publishing. In 2004, ... Cobalt-60. Book one created by Vaughn Bodé, illustrated by Mark Bodé, written by Larry Todd. Northampton, Ma.: Tundra ... In 1984 he expanded and illustrated Cobalt 60, originally created as a short story by his father in 1968. Written by Larry Todd ...
Africa is richly endowed with mineral reserves and ranks first or second in quantity of world reserves of bauxite, cobalt, ... The 2005 share of world production from African soil is the following: bauxite 9%; aluminium 5%; chromite 44%; cobalt 57%; ... African mineral reserves rank first or second for bauxite, cobalt, diamonds, phosphate rocks, platinum-group metals (PGM), ...
... is a name for pyrites of copper-nickel-cobalt-iron[clarification needed] give by German miners of the 15th century. The ...
4,032 feet (1,229 m) Cobalt Lake, 48°26′04″N 113°25′34″W / 48.43444°N 113.42611°W / 48.43444; -113.42611 (Cobalt Lake), el ... "Cobalt Lake". Geographic Names Information System. United States Geological Survey. "Conway Lake". Geographic Names Information ...
"Cobalt Facts" (PDF). Cobalt Development Institute. 2006. pp. 23-28. Retrieved 3 July 2013. Kondo, Jun (July 1964). "Resistance ... Magnetic alloys have become common, especially in the form of steel (iron and carbon), alnico (iron, nickel, cobalt, and ... and cobalt (Co). Such an alloy must contain but is not limited to one or more of these metals. ...
During a brief stint in the United States Navy in 1919, she was known as USS West Cobalt (ID-3836). SS West Cobalt was built as ... "West Cobalt". DANFS. "West Cobalt". Miramar Ship Index. R.B.Haworth. Retrieved 20 September 2008. "[Ships' Official Numbers: ... By 1930, West Cobalt was reported in The Washington Post as sailing on a New Orleans - London route. On 15 October of that year ... West Cobalt's power plant consisted of a single steam turbine driving a single screw propeller which moved the ship at up to 11 ...
In 2016, Cobalt Press published her most recent full-length poetry collection, Jeff Bridges. As of 2017, she frequently ... "Interview: Donora Hillard". Cobalt Review. Archived from the original on November 15, 2013. Retrieved November 3, 2015. ... Cobalt Press, 2016) The Marriage of Heaven and Hell: An Election Cycle (with Andrew Rihn) (Moria Books/Locofo Chaps, 2017) The ... Cobalt Press, 2016) was published in April 2016 and critically acclaimed. Parapherna (Dancing Girl Press, 2006) Exhibition ( ...
The startup of the Ambatovy nickel and cobalt mine in 2009 in Madagascar is expected to account for the majority of the ... Africa is richly endowed with mineral reserves and ranks first or second in quantity of world reserves of bauxite, cobalt, ... The 2012 share of world production from African soil was bauxite 7%; aluminium 5%; chromite 38%; cobalt 60%; copper 9%; gold 20 ... Substantial capital expenditures were also likely for aluminum in Mozambique and South Africa, cobalt and copper in the ...
"Cobalt biography". Allmusic. Retrieved 2017-12-30. Sharpe-Young, Garry. "Code". Allmusic. Retrieved 2009-08-25. Born, R. "Cor ...
... cobalt (blue); aluminium (green, violet); titanium (white); copper (blue, green); iron (brown, red, black); and barium (white ...
Risk Committee of Liverpool-based social landlord Cobalt Housing. Perrett, Michelle. "Nick Crofts elected president of The Co- ... "Governance , Cobalt Housing". cobalthousing.org.uk. Retrieved 2017-12-13. ...
He is known for his work related to Cobalt Review (founded in 2011) and Cobalt Press (founded in 2013), and his first book, ... "2013 Baseball Issue". Cobalt Review. Retrieved 2 March 2014. "Cobalt Press". Archived from the original on May 30, 2014. ... Keating announced the launch of Cobalt Press, the book publishing imprint to be associated with Cobalt Review, in the summer of ... In the fall of 2012, he launched Cobalt Review, a quarterly online literary journal which also releases an annual print issue. ...
"Home - Cobalt Aero". cobalt.aero. Retrieved 15 November 2017. 2017, UBM (UK) Ltd. "Eurowings launches Munich base; expands ...
CMSK produces 12,000 tons of copper annually and about 4,000 tons of cobalt. This is about 8% of world cobalt production. In ... Forrest noted that although uranium was present in the copper and cobalt ore from the mine, it was at far too low a grade to be ... Resources were estimated at between 7.5 and 8 million tons of ore graded 2.8% copper and 1.0% cobalt. As of 2002, the Mine was ... The Luiswishi mine is an open cut copper and cobalt mine in Katanga Province of the Democratic Republic of the Congo (DRC). ...
Notable silver rushes were in Colorado; Nevada; Cobalt, Ontario; California and the Kootenay region of British Columbia; ...
Cobalt Mining District. Canadian Register of Historic Places. Esterhazy Flour Mill. Canadian Register of Historic Places. La ...
VI Cobalt (Blue); VII Jet (Black); VIII Silver. At each position of the rotors, an electric current would or would not flow in ...
Single-Factored Dark_Blue (a.k.a. Cobalt) in France. 1921 Double-Factored Dark_Blue (a.k.a. Mauve) in France. 1930 Single- ...
Co Cobalt alloys. Good high-temperature corrosion resistance, possible alternative to Au-Pd brazes. Low workability at low ... For brazing copper, brass, nickel alloys, Monel, medium and high carbon steels and chromium alloys, cobalt alloys, tungsten ... May be substituted for by cobalt-based brazes. Low vapor pressure. Pd Palladium. Good high-temperature performance, high ...
Cobalt Mining District. Canadian Register of Historic Places. Cox Terrace. Canadian Register of Historic Places. "Cox Terrace ' ...
Cobalt (November 2000). "Them - "Them"". Hip Hop Core. Retrieved January 4, 2015. "The 100 best indie hip-hop records of all ...
"Co-Balt Credits". AllMusic. Retrieved 2016-12-07. Widespread Panic Official Website. ... but he did perform on their second album Co-Balt. sweetpea. "Happy Birthday Sunny!". Nothing But Widespread Panic. Retrieved ...
... but we do not mine any cobalt in this country (we do produce some cobalt by recycling). Cobalt is considered a critical metal ... The United States is the worlds largest consumer of cobalt, ... Unit 2 Reading: Cobalt. *Unit 2 Reading: Lithium and Cobalt ... but we do not mine any cobalt in this country (we do produce some cobalt by recycling). Cobalt is considered a critical metal ... The graph of cobalt price shows a huge spike in the 1970s (in 1998 dollars). The price of cobalt soared primarily because of a ...
... and Cobalt 10 are offered as a base console with 5000 control channels and 4,096 outputs (8 universes of DMX512A). A ... Cobalt 20 is shipped in a carton on a pallet. The shipping weight is the combined weight of the console on the pallet. ... Cobalt Offline Editor software for Mac and PC platforms is available for download from www.etcconnect.com ... To increase the capacity of the console to its maximum of 16,384 outputs, order the Cobalt Maximum Output upgrade. Two ...
Cobalt ore is a metal block found after breaking a demon altar in hardmode. Cobalt ore can be used to make cobalt bars and used ... Cobalt Ore. Cobalt ore is a metal block found after breaking a demon altar in hardmode. Cobalt ore can be used to make cobalt ... Cobalt Ore Edit Page Last Edit: March 18, 2013 - 4 years 8 months ago. ...
Cobalt Nitrate is the Inorganic compound with the formula Co(NO3)2.xH2O. It is cobalt(II) salt. The most common form is the ... a b c John Dallas Donaldson, Detmar Beyersmann, "Cobalt and Cobalt Compounds" in Ullmanns Encyclopedia of Industrial Chemistry ... Anhydrous cobalt(II) nitrate adopts a three-dimensional polymeric network structure, with each cobalt(II) atom approximately ... It is commonly reduced to metallic high purity cobalt.[2] It can be absorbed on to various catalyst supports for use in Fischer ...
Cobalt Drill Bit, With 3/8 Reduced Shank To Fit In All 3/8 Drills, 135 Degree Split Point To Minimize Walk, 8% Cobalt For ... 13/32", Cobalt Drill Bit, With 3/8" Reduced Shank To Fit In All 3/8" Drills, 135 Degree Split Point To Minimize Walk, 8% Cobalt ...
Chevrolet Cobalt 2005-2010 Service Repair Workshop Manual Download PDF , Chevrolet Cobalt Complete Workshop Service Repair ... Chevrolet Cobalt 2005-2010 Service Repair Manual. Chevrolet Cobalt 2005-2010 Service Repair Manual This is the COMPLETE ... Chevrolet Cobalt 2005-2010 Service Repair Workshop Manual Download Pdf Chevrolet Cobalt 2005-2010 Service Repair Workshop ... Chevy Cobalt 2005-2010 Factory Repair Service Manual. OFFICIAL FACTORY SERVICE REPAIR WORKSHOP MANUAL FOR US/CANADA MODEL File ...
These nickel/silver Showcase 1941 finger picks are plated with cobalt for incredible longevity and decreased string noise. ... NASA has been using cobalt plating on metal parts for years to reduce friction, now you can too! ... Cobalt Plated 1941 Finger Picks Pair. $14.85. sku: CB1941. NASA has been using cobalt plating on metal parts for years to ... German nickel/silver finger pick with Cobalt plating on the outside playing surface ...
Read Consumer Quality Ratings on Chevrolet Cobalts Online at Autobytel.com. The Chevrolet Cobalt Rating Process is Based on a ... Chevrolet Cobalt Ratings. Getting firsthand information from an actual car owner is one sure way to get an idea of car ... I have had this 2010 Cobalt for 8 months and have had no problems. Gas mileage for combined city and highway is about 31 mpg. ...
... of the cobalt raw materials entering our battery material supply chain originated from large-scale mining (LSM) activities in ... As Umicores cobalt supply is exempted from any artisanally or small-scale mined materials (ASM), in 2018, more than 75% ... Cobalt and pre-alloyed powders for stone and concrete cutting tools. *Cobalt and nickel compounds for the production of colors ... Cobalt and pre-alloyed powders for stone and concrete cutting tools. *Cobalt and nickel compounds for the production of colors ...
... Nominated Substances: Cobalt ... Rationale: Cobalt sulfate was nominated by the NCI in July 1979 following a review of the metals class because of high ... suspicion of carcinogenicity based upon the induction of local sarcomas by other cobalt compounds and widespread usage. ...
Concentrations of cobalt exceed 1 percent in ferromanganese crusts on seamounts, ocean ridges, and other raised areas of the ... Ferromanganese oxides in the open oceans are more enriched in cobalt than any other widely distributed sediments or rocks. ... Attention has been drawn to crusts as potential resources because they contain cobalt, manganese, and platinum, three of the ... some of the most cobalt-rich crusts occur within the exclusive economic zone of the United States and other nations. ...
Cobalts product lines-the Cobalt Qube, Cobalt Cache, Cobalt RaQ,. and Cobalt NASRaQ -are used as Internet and Web hosting ... About Cobalt Networks. Cobalt Networks, Inc. is a developer of server appliances that enable. organizations to establish an ... NPL] Entera Streaming Solutions on Cobalt RaQ. Posted by mactech , Oct 28, 1999 , Uncategorized , ... "The Cobalt and Entera relationship is central to Enteras goal of enabling. our partners to create solutions that build the ...
Cobalt Blue is owned by the estate of the late Merv Griffin. Earlier in the year, when Griffin was still alive, the colt was ... At the sixteenth pole, E Z Warrior was still clear, but the torrid run of Cobalt Blue nailed him, with the final margin being a ... EmailOCEANPORT, N.J. - Cobalt Blue charged from far back to snatch victory from his California rival, E Z Warrior, in capturing ... DRF.com › News › Columnists › Marty McGee › Cobalt Blue rallies in Select Stakes ...
The China-Congo-Cobalt nexus. The DRC today has six of the top 10 cobalt mines globally. ... China, despite having no cobalt resources of its own, is responsible for 80% of the worlds cobalt chemical production, which ... to the fact that China will hold most of the worlds supply of cobalt:. "If cobalt falls into the hands of the Chinese, yeah ... If cobalt falls into the hands of the Chinese, yeah you wont see EVs being produced in Europe etc. Not only is primary ...
Cobalt Nitrate is the Inorganic compound with the formula Co(NO3)2.xH2O. It is cobalt(II) salt. The most common form is the ... a b c John Dallas Donaldson, Detmar Beyersmann, "Cobalt and Cobalt Compounds" in Ullmanns Encyclopedia of Industrial Chemistry ... Anhydrous cobalt(II) nitrate adopts a three-dimensional polymeric network structure, with each cobalt(II) atom approximately ... It is commonly reduced to metallic high purity cobalt.[2] It can be absorbed on to various catalyst supports for use in Fischer ...
... research report on Global Cobalt Powder industry that you would know the worlds major regional market conditions of Cobalt ... 2015 Market Research Report on Global Cobalt Powder Industry> was a professional and depth ... Part I Cobalt Powder Industry Overview Chapter One Cobalt Powder Industry Overview. 1.1 Cobalt Powder Definition. 1.2 Cobalt ... 1.6.2 Cobalt Powder Global Emport Market Analysis. 1.6.3 Cobalt Powder Global Main Region Market Analysis. 1.6.4 Cobalt Powder ...
Case of cobalt poisoning. BMJ 1967; 1: 544-545.. *8. Queally JM, Devitt BM, Butler JS, et al. Cobalt ions induce chemokine ... Cobalt in hard metals and cobalt sulfate, gallium arsenide, indium phosphide and vanadium pentoxide. Lyon: IARC, 2006. ... The direct effect of cobalt on cells has recently been explored. Exposure to cobalt ions was found to significantly inhibit ... We believe our patients symptoms were related to their elevated cobalt levels, resulting from cobalt leaching out of their hip ...
Join this list for regular updates on happenings with the reading...upcoming featured guests and special Cobalt Café open ... The official list of the long running Tuesday night Cobalt Café Open Poetry Reading hosted since 1994 by Los Angeles Poet Rick ... Cobalt Café Poets is a Restricted Group with 541 members.. *Cobalt Café Poets ...
Exposure to cobalt may cause cancer. Workers may be harmed from exposure to cobalt and cobalt-containing products. The level of ... Cobalt (Co) is a hard, gray metal that occurs naturally. It is found in rocks, soil, water, plants, and animals, including ... Useful search terms for cobalt include "cobalt metal dust," "cobalt metal powder," "cobalt metal fume," and "elemental cobalt." ... Exposure to cobalt may cause cancer. Workers may be harmed from exposure to cobalt and cobalt-containing products. The level of ...
In case of a failiour, how does these (Cobalt) machines REALLY work? I mean, is it easy to remove / change / upgrade the ...
Cobalt has both beneficial and harmful effects on health. At low levels, it is part of vitamin B12, which is essential for good ... The general population is exposed to low levels of cobalt in air, water, and food. ... How can cobalt affect my health?. Cobalt can benefit or harm human health. Cobalt is beneficial for humans because it is part ... What is cobalt?. Cobalt is a naturally occurring element found in rocks, soil, water, plants, and animals. Cobalt is used to ...
http://www.mediafire.com/file/2p6361s03xkw8wo/com.vectorunit.cobalt.googleplay.zip/file. .header { position: absolute; width: ...
... is a cobalt group element atom (CHEBI:33358) cobalt atom (CHEBI:27638) is a metal allergen (CHEBI: ... CHEBI:27638 - cobalt atom. Main. ChEBI Ontology. Automatic Xrefs. Reactions. Pathways. Models. ... cobalt atom (CHEBI:27638) has role micronutrient (CHEBI:27027) ... cobalt molecular entity (CHEBI:33888) has part cobalt atom ( ...
... and learn more about Cobalt Chrome. Download Cobalt Chrome and enjoy it on your iPhone, iPad, and iPod touch. ... When you get ten of them, touch the glasses to unleash the powerful Cobalt Chrome form.. Cobalt Chrome have:. - Beautiful 3D ... Get rid of the enemies minions, collect the serum and unleash Cobalt Chrome.. The first game of the OsteoCorps!. Join Colt, ...
View photos and learn more about this 2010 Chevrolet Cobalt on Edmunds ... This 2010 Chevrolet Cobalt is in stock and for sale in Weber City, Virginia. ... More 2010 Chevrolet Cobalts by City. *2010 Chevrolet Cobalts for Sale in Albuquerque, NM ... 2010 CHEVROLET COBALT LS XFE, silver gray, va dlr, 83000 miles, Stock No: 04753, VIN: 1G1AA1F51A , ...
cobalt and compounds; health hazards; radioactive substances; France. Descriptors (secondary). cobalt; radiation accidents; ... Le cobalt et ses isotopes [in French]. Bibliographic information. Toxicologie-Pathologie professionnelle, 4th Quarter 2005, No. ... Contents of this review article on cobalt and its isotopes: physical, chemical, nuclear and biological characteristics; ... permissible radiation doses; cobalt-57; encyclopaedia; data sheet; medical supervision. Document type. F - Information notes, ...
See an archive of all cobalt blue stories published on the New York Media network, which includes NYMag, The Cut, Vulture, and ...
Cobalt is a component of vitamin B12, which supports the production of red blood cells. Very small ... Cobalt is a naturally occurring element in the earths crust. It is a very small part of our environment. ... Cobalt is a naturally occurring element in the earths crust. It is a very small part of our environment. Cobalt is a component ... Cobalt poisoning can occur when you are exposed to large amounts of it. There are three basic ways that cobalt can cause ...
View photos and learn more about this 2009 Chevrolet Cobalt on Edmunds ... This 2009 Chevrolet Cobalt is in stock and for sale in Lynchburg, Virginia. ... More 2009 Chevrolet Cobalts by City. *2009 Chevrolet Cobalts for Sale in Tulsa, OK ...
There is only one stable isotope of cobalt, which has an atomic weight of 59. (An element may have several different forms, ... Cobalt is a naturally-occurring element that has properties similar to those of iron and nickel. It has an atomic number of 27 ... cobalt-60 and cobalt-57, also written as Co-60 or 60Co and Co-57 or 57Co, and read as cobalt sixty and cobalt fifty-seven. All ... How can cobalt enter and leave my body?. Cobalt can enter your body when you breathe in air containing cobalt dust, when you ...
All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material ...
The Chevrolet Cobalt was introduced in the 2005 model year as a replacement for the Cavalier and was discontinued after the ... The Chevrolet Cobalt was introduced in the 2005 model year as a replacement for the Cavalier and discontinued after the 2010 ... Two tests of a Cobalt were conducted, one with an optional side airbag for the driver and rear passenger, and one without. ... 2005 Chevrolet Cobalt 4-door moderate overlap test. Applies to 2005-10 models ...
Cobalt Cranes. Blessed State playing shows this weekend, 2 in NYC including Babys First Annual Wake & Ba…. Western Mass post- ...
Information on arsenic, a potential agent for chemical terrorism. Provided by the Centers for Disease Control and Prevention (CDC).
Bot::Cobalt::Serializer - Bot::Cobalt serialization wrapper. SYNOPSIS use Bot::Cobalt::Serializer; ## Spawn a YAML (1.1) ... handle_syck = Bot::Cobalt::Serializer-,new(YAML); $handle_yaml = Bot::Cobalt::Serializer-,new(YAMLXS); $handle_json = Bot:: ... my $serializer = Bot::Cobalt::Serializer-,new; my $serializer = Bot::Cobalt::Serializer-,new( $format ); my $serializer = Bot:: ... Cobalt::Serializer-,new(JSON); ## ...same as: my $serializer = Bot::Cobalt::Serializer-,new( Format =, JSON ); ## Serialize ...
The prices of cobalt and tungsten have skyrocketed in recent months because of worries that supply of the vital metals may not ... In Canada, a small firm called Cobalt 27 Capital promotes itself as offering investors "pure-play exposure to cobalt." Shares ... About 10% of current cobalt production goes towards electric car batteries, according to Andries Gerbens, a cobalt specialist ... Cobalt is a byproduct of copper and nickel production, and is not mined on its own. But theres little current demand for new ...
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COBALT is optimized for cases where groups of sequences do match to the same domain (see Query Clustering below). Note: ... This threshold prvents COBALT from forming clusters o unrelated sequences. The distance between two sequences is computed as a ... COBALT computes a multiple protein sequence alignment using conserved domain and local sequence similarity information. [?] ... COBALT is a multiple sequence alignment tool that finds a collection of pairwise constraints derived from conserved domain ...
Modern lives are ruled by mobile devices, from smartphones and tablets, to portable gaming systems and e-readers. Considering these devices need some kind of power source, this means that batteries are what actually have dominion over our daily activities. Battery tech hasnt improved at the rate of the hardware it powers, but the industry has been taking baby steps. Now, Chinese scientists have taken a new baby step that could help batteries store more power.. ...
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  • a b c John Dallas Donaldson, Detmar Beyersmann, "Cobalt and Cobalt Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2005. (wikipedia.org)
  • Cobalt sulfate was nominated by the NCI in July 1979 following a review of the metals class because of high suspicion of carcinogenicity based upon the induction of local sarcomas by other cobalt compounds and widespread usage. (nih.gov)
  • A complete review of data on the toxicological effects of cobalt compounds to humans and mammals can be found in chapter 5 of this report. (europa.eu)
  • The study contemplates expanding the existing facility and adapting it to be North America's first producer of cobalt sulfate, an essential component in the manufacturing of EV batteries. (neighboursfortheplanet.ca)
  • Ferromanganese oxides in the open oceans are more enriched in cobalt than any other widely distributed sediments or rocks. (sciencemag.org)
  • As well as the anhydrous compound Co(NO 3 ) 2 , several hydrates of cobalt(II) nitrate exist. (wikipedia.org)
  • Anhydrous cobalt(II) nitrate adopts a three-dimensional polymeric network structure, with each cobalt(II) atom approximately octahedrally coordinated by six oxygen atoms, each from a different nitrate ion. (wikipedia.org)
  • Each nitrate ion coordinates to three cobalts. (wikipedia.org)
  • Cobalt (II) Nitrate 99% 6. (ec21.com)
  • Before the price of cobalt spiked in the late 1970s, samarium-cobalt magnets were used to make sound in speakers and phones, and used in electric motors. (carleton.edu)
  • Attention has been drawn to crusts as potential resources because they contain cobalt, manganese, and platinum, three of the four priority strategic metals for the United States. (sciencemag.org)
  • Herein, we report ultrasmall cobalt oxide clusters (∼1.7 nm) stabilized within silicalite-1 crystals catalyst ([email protected]), exhibiting superior catalytic activity and resistance to sintering for the conversion of fructose into methyl lactate. (northwestern.edu)
  • The National Academy of Sciences (NAS) Mineral Tolerances of Domestic Animals (2005) reported cobalt deficiency is a much more common occurrence than toxicosis. (europa.eu)
  • These nickel/silver Showcase 1941 finger picks are plated with cobalt for incredible longevity and decreased string noise. (elderly.com)
  • Cobalt, with the exception of silver-cobalt ores from the Cobalt Mining Camp in northeast Ontario, is produced primarily as a by-product of copper and nickel and plays a key role in the production of rechargeable batteries used in the manufacture of electric vehicles and electronic devices. (resourceworld.com)
  • A number of studies have confirmed that cobalt and chromium ion's are released into the surrounding bone and tissue causing local detrimental effects. (earlsview.com)
  • Review of the available literature suggests that all patients with Metal on Metal (MoM) hip replacements made of cobalt chrome are likely to have elevated to toxic levels of cobalt and chromium ions, whether they are aware of problems localized on the hip or more wide-ranging systemic problems. (earlsview.com)
  • A metal-on-metal hip implant is usually made of chromium and cobalt, and consists of an acetabular cup that's implanted into the hip with a ball joint that connects to the leg. (earlsview.com)
  • A report released by Amnesty International in November, 2017 ranked industry giants including Apple, Samsung Electronics, Dell, Microsoft, BMW, Renault and Tesla on how much they have improved their cobalt sourcing practices since January, 2016. (resourceworld.com)
  • First Cobalt has announced positive results from an independent feasibility study conducted on its permitted cobalt refinery in Ontario, Canada. (neighboursfortheplanet.ca)
  • Cobalt's product lines-the Cobalt Qube, Cobalt Cache, Cobalt RaQ, and Cobalt NASRaQ -are used as Internet and Web hosting server appliances at businesses, Internet Service Providers, and educational institutions. (mactech.com)
  • Roughly 60% of the world's cobalt supply comes from the DRC. (resourceworld.com)
  • Pressure from Amnesty International presents a big challenge for industrial consumers because so much of world's cobalt supply comes from the DRC. (resourceworld.com)
  • However, Cobalt and Chrome ions are toxic to other tissues and body functions. (earlsview.com)
  • An additional study was identified from the terrestrial toxicity database that examined the toxicity of cobalt to growing pigs (Huck & Clawson, 1976). (europa.eu)
  • The food chain exposures to terrestrial and aquatic organisms seem less critical compared to direct toxicity of cobalt towards wildlife birds and mammals and safe thresholds for direct toxicity will therefore also be protective for secondary poisoning through the terrestrial and aquatic food chains. (europa.eu)
  • But increasing cobalt prices made these magnets less attractive. (carleton.edu)
  • It is commonly reduced to metallic high purity cobalt. (wikipedia.org)
  • The price of cobalt soared primarily because of a supply shortage. (carleton.edu)
  • Congo is again the main world producer of cobalt). (carleton.edu)
  • The state-run company Gecamines was a huge cobalt (and copper) producer but had allowed their equipment to age. (carleton.edu)
  • As Umicore's cobalt supply is exempted from any artisanally or small-scale mined materials (ASM), in 2018, more than 75% of the cobalt raw materials entering our battery material supply chain originated from large-scale mining (LSM) activities in the Democratic Republic of Congo and were refined by Umicore or at facilities scheduled for audits by Umicore. (umicore.com)
  • Back in November, 2018, BMW Group said it was teaming up with BASF SE, Samsung SDI and Samsung Electronics to launch a cobalt pilot project in the Democratic Republic of Congo (DRC) in a bid to improve working conditions in artisanal mining operations as well as living conditions in surrounding communities. (resourceworld.com)
  • In addition to concerns about working conditions, the DRC has also been hit by falling cobalt prices, which are trading at US$14.74 a pound, or about a third of their 2018 peak. (resourceworld.com)
  • Concentrations of cobalt exceed 1 percent in ferromanganese crusts on seamounts, ocean ridges, and other raised areas of the ocean. (sciencemag.org)
  • As previously discu ssed, cobalt has a low bioaccumulation potential in both aquatic and terrestrial pathways (see section 4.4) and as an essential element for plants and animals (Gal et al 2008) homeostatic mechanisms maintain cobalt concentrations in tissues and body fluids within ideal levels by actively accumulating or depurating cobalt depending on metabolic requirements. (europa.eu)
  • Worm i nternal body concentrations of cobalt, after gut content depuration, ranged from 1.7 to 7.0 mg Co/kg ww. (europa.eu)
  • Internal body concentrations of cobalt in aquatic organisms have been measured in freshwater and marine fish and marine mussels. (europa.eu)
  • These low cobalt tissue concentrations are less than or equal to the estimated PNEC for birds and mammals. (europa.eu)
  • Although a PNEC oral value is not relevant for cobalt, an approximate no effect dietary concentration was estimated for both bird and mammal pathways using a Tier 1 approach according to ECHA TGD R.7.13. (europa.eu)
  • This long-term dietary study (16 weeks) evaluating effects of cobalt on growth meets the requirements for calculating a predicted no-effect concentration in the food (PNEC oral ) as indicated in section R.10.8 (ECHA 2008). (europa.eu)
  • Tesla has begun "to engage directly with smelter and mines," including in the Democratic Republic of Congo -- the key cobalt supplying nation, and home to some Glencore operations -- on standards around ethical and responsible production, the automaker said in a 2019 Impact Report released last week. (bnnbloomberg.ca)
  • The Democratic Republic of Congo has granted a monopoly to a new state-owned company that is being set up to buy and market all cobalt in the country that is not mined industrially. (resourceworld.com)
  • Cobalt poisoning results when the metal components of an implant begin to wear and microscopic metal shards are absorbed into the blood stream and infiltrate the organs. (earlsview.com)
  • The tissue damage that results from cobalt poisoning can complicate future revision surgeries intended to replace the damaged metal-on-metal hip implant. (earlsview.com)
  • An October 2010 article published in The Journal of Bone and Joint Surgery linked metal-on-metal hip implants to cobalt poisoning (see below). (earlsview.com)
  • The authors called for a larger group study to define the prevalence and spectrum of cobalt poisoning due to hip replacement surgery. (earlsview.com)
  • Cobalt poisoning is extremely serious. (earlsview.com)
  • The Tier 1 results reinforce the low risk of secondary poisoning of cobalt to birds and mammals. (europa.eu)
  • Chevrolet Cobalt 2005-2010 Service Repair Manual This is the COMPLETE official full factory service repair manual for the Chevrolet Cobalt 2005-2010. (tradebit.com)
  • Cobalt is considered a critical metal and is included in the National Defense Stockpile, 'to ensure an adequate supply for military, industrial, and essential civilian needs during a national emergency. (carleton.edu)
  • NASA has been using cobalt plating on metal parts for years to reduce friction, now you can too! (elderly.com)
  • Thirty months after surgery, one patient's blood cobalt level was 122 µg/L, while the second patient's measured 23 µg/L one year after receiving a metal-on-metal implant. (earlsview.com)
  • Chevrolet Cobalt Complete Workshop Service Repair Manual 2005 2006 2007 2008 2009 2010 Thanks for taking the time to look at this Complete Service Repair Workshop Manual. (tradebit.com)