Beryllium: Beryllium. An element with the atomic symbol Be, atomic number 4, and atomic weight 9.01218. Short exposure to this element can lead to a type of poisoning known as BERYLLIOSIS.Berylliosis: A form of pneumoconiosis caused by inhaled rare metal BERYLLIUM or its soluble salts which are used in a wide variety of industry including alloys, ceramics, radiographic equipment, and vacuum tubes. Berylliosis is characterized by an acute inflammatory reaction in the upper airway leading to BRONCHIOLITIS; PULMONARY EDEMA; and pneumonia.HLA-DP beta-Chains: Transmembrane proteins that form the beta subunits of the HLA-DP antigens.HLA-DP Antigens: A group of the D-related HLA antigens (human) found to differ from the DR antigens in genetic locus and therefore inheritance. These antigens are polymorphic glycoproteins comprising alpha and beta chains and are found on lymphoid and other cells, often associated with certain diseases.Fluorides: Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices.Air Pollutants, Occupational: Air pollutants found in the work area. They are usually produced by the specific nature of the occupation.Aluminum Compounds: Inorganic compounds that contain aluminum as an integral part of the molecule.Occupational Exposure: The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.Metallurgy: The science, art, or technology dealing with processes involved in the separation of metals from their ores, the technique of making or compounding the alloys, the techniques of working or heat-treating metals, and the mining of metals. It includes industrial metallurgy as well as metallurgical techniques employed in the preparation and working of metals used in dentistry, with special reference to orthodontic and prosthodontic appliances. (From Jablonski, Dictionary of Dentistry, 1992, p494)Radioactive Pollutants: Radioactive substances which act as pollutants. They include chemicals whose radiation is released via radioactive waste, nuclear accidents, fallout from nuclear explosions, and the like.Probability Theory: The branch of mathematics dealing with the purely logical properties of probability. Its theorems underlie most statistical methods. (Last, A Dictionary of Epidemiology, 2d ed)Alloys: A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.Chronic Disease: Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care. (Dictionary of Health Services Management, 2d ed)Nitric Acid: Nitric acid (HNO3). A colorless liquid that is used in the manufacture of inorganic and organic nitrates and nitro compounds for fertilizers, dye intermediates, explosives, and many different organic chemicals. Continued exposure to vapor may cause chronic bronchitis; chemical pneumonitis may occur. (From Merck Index, 11th ed)Chemical Hazard Release: Uncontrolled release of a chemical from its containment that either threatens to, or does, cause exposure to a chemical hazard. Such an incident may occur accidentally or deliberately.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)National Institute for Occupational Safety and Health (U.S.): An institute of the CENTERS FOR DISEASE CONTROL AND PREVENTION which is responsible for assuring safe and healthful working conditions and for developing standards of safety and health. Research activities are carried out pertinent to these goals.Hazardous Substances: Elements, compounds, mixtures, or solutions that are considered severely harmful to human health and the environment. They include substances that are toxic, corrosive, flammable, or explosive.United States Environmental Protection Agency: An agency in the Executive Branch of the Federal Government. It was created as an independent regulatory agency responsible for the implementation of federal laws designed to protect the environment. Its mission is to protect human health and the ENVIRONMENT.Cannabidiol: Compound isolated from Cannabis sativa extract.Metals, Alkaline Earth: Metals that constitute the group 2 (formerly group IIa) of the periodic table.Elements: Substances that comprise all matter. Each element is made up of atoms that are identical in number of electrons and protons and in nuclear charge, but may differ in mass or number of neutrons.Silicon: A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086].Viral Structures: The structural parts of the VIRION.Powders: Substances made up of an aggregation of small particles, as that obtained by grinding or trituration of a solid drug. In pharmacy it is a form in which substances are administered. (From Dorland, 28th ed)Electronics: The study, control, and application of the conduction of ELECTRICITY through gases or vacuum, or through semiconducting or conducting materials. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Military Personnel: Persons including soldiers involved with the armed forces.Ceramics: Products made by baking or firing nonmetallic minerals (clay and similar materials). In making dental restorations or parts of restorations the material is fused porcelain. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed & Boucher's Clinical Dental Terminology, 4th ed)Military Medicine: The practice of medicine as applied to special circumstances associated with military operations.Silicon Compounds: Inorganic compounds that contain silicon as an integral part of the molecule.Electroplating: Coating with a metal or alloy by electrolysis.Nanopores: Small holes of nanometer dimensions in a membrane, that can be used as single molecule detectors. The pores can be biological or synthetic.Ultrasonic Surgical Procedures: The use of HIGH-ENERGY SHOCK WAVES, in the frequency range of 20-60 kHz, to cut through or remove tissue. The tissue fragmentation by ultrasonic surgical instruments is caused by mechanical effects not heat as with HIGH-INTENSITY FOCUSED ULTRASOUND ABLATION.Naval Medicine: The practice of medicine concerned with conditions affecting the health of individuals associated with the marine environment.Congresses as Topic: Conferences, conventions or formal meetings usually attended by delegates representing a special field of interest.Federal Government: The level of governmental organization and function at the national or country-wide level.CongressesMastodynia: Pain in the breast generally classified as cyclical (associated with menstrual periods), or noncyclical, i.e. originating from the breast or nearby muscles or joints, ranging from minor discomfort to severely incapacitating.Bulimia: Eating an excess amount of food in a short period of time, as seen in the disorder of BULIMIA NERVOSA. It is caused by an abnormal craving for food, or insatiable hunger also known as "ox hunger".Laboratories: Facilities equipped to carry out investigative procedures.New MexicoUnited States Public Health Service: A constituent organization of the DEPARTMENT OF HEALTH AND HUMAN SERVICES concerned with protecting and improving the health of the nation.Medical Laboratory Personnel: Health care professionals, technicians, and assistants staffing LABORATORIES in research or health care facilities.Logical Observation Identifiers Names and Codes: A vocabulary database of universal identifiers for laboratory and clinical test results. Its purpose is to facilitate the exchange and pooling of results for clinical care, outcomes management, and research. It is produced by the Regenstrief Institute. (LOINC and RELMA [Internet]. Indianapolis: The Regenstrief Institute; c1995-2001 [cited 2002 Apr 2]. Available from http://www.regenstrief.org/loinc)Clinical Laboratory Information Systems: Information systems, usually computer-assisted, designed to store, manipulate, and retrieve information for planning, organizing, directing, and controlling administrative and clinical activities associated with the provision and utilization of clinical laboratory services.Copyright: It is a form of protection provided by law. In the United States this protection is granted to authors of original works of authorship, including literary, dramatic, musical, artistic, and certain other intellectual works. This protection is available to both published and unpublished works. (from Circular of the United States Copyright Office, 6/30/2008)Terminology as Topic: The terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area.Vocabulary, Controlled: A specified list of terms with a fixed and unalterable meaning, and from which a selection is made when CATALOGING; ABSTRACTING AND INDEXING; or searching BOOKS; JOURNALS AS TOPIC; and other documents. The control is intended to avoid the scattering of related subjects under different headings (SUBJECT HEADINGS). The list may be altered or extended only by the publisher or issuing agency. (From Harrod's Librarians' Glossary, 7th ed, p163)Software: Sequential operating programs and data which instruct the functioning of a digital computer.Radioactive Waste: Liquid, solid, or gaseous waste resulting from mining of radioactive ore, production of reactor fuel materials, reactor operation, processing of irradiated reactor fuels, and related operations, and from use of radioactive materials in research, industry, and medicine. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Environmental Remediation: Removal of ENVIRONMENTAL POLLUTANTS or contaminants for the general protection of the environment. This is accomplished by various chemical, biological, and bulk movement methods, in conjunction with ENVIRONMENTAL MONITORING.Plutonium: Plutonium. A naturally radioactive element of the actinide metals series. It has the atomic symbol Pu, atomic number 94, and atomic weight 242. Plutonium is used as a nuclear fuel, to produce radioisotopes for research, in radionuclide batteries for pacemakers, and as the agent of fission in nuclear weapons.Nuclear Reactors: Devices containing fissionable material in sufficient quantity and so arranged as to be capable of maintaining a controlled, self-sustaining NUCLEAR FISSION chain reaction. They are also known as atomic piles, atomic reactors, fission reactors, and nuclear piles, although such names are deprecated. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

Mechanism of interaction of Acanthamoeba actophorin (ADF/Cofilin) with actin filaments. (1/202)

We characterized the interaction of Acanthamoeba actophorin, a member of ADF/cofilin family, with filaments of amoeba and rabbit skeletal muscle actin. The affinity is about 10 times higher for muscle actin filaments (Kd = 0.5 microM) than amoeba actin filaments (Kd = 5 microM) even though the affinity for muscle and amoeba Mg-ADP-actin monomers (Kd = 0.1 microM) is the same (Blanchoin, L., and Pollard, T. D. (1998) J. Biol. Chem. 273, 25106-25111). Actophorin binds slowly (k+ = 0.03 microM-1 s-1) to and dissociates from amoeba actin filaments in a simple bimolecular reaction, but binding to muscle actin filaments is cooperative. Actophorin severs filaments in a concentration-dependent fashion. Phosphate or BeF3 bound to ADP-actin filaments inhibit actophorin binding. Actophorin increases the rate of phosphate release from actin filaments more than 10-fold. The time course of the interaction of actophorin with filaments measured by quenching of the fluorescence of pyrenyl-actin or fluorescence anisotropy of rhodamine-actophorin is complicated, because severing, depolymerization, and repolymerization follows binding. The 50-fold higher affinity of actophorin for Mg-ADP-actin monomers (Kd = 0.1 microM) than ADP-actin filaments provides the thermodynamic basis for driving disassembly of filaments that have hydrolyzed ATP and dissociated gamma-phosphate.  (+info)

Exposure of cultured murine peritoneal macrophages to low concentrations of beryllium induces increases in intracellular calcium concentrations and stimulates DNA synthesis. (2/202)

Exposure of humans to beryllium dusts can induce a specific form of chronic pneumonitis that consists mainly of noncaseating granulomas in the lungs. Multiple studies have documented both genetic and immune components of chronic berylliosis. Much work has focused on T cells and their reactivity in berylliosis, but less work has focused on the end effector cells in granulomatous inflammation, macrophages. Because macrophages must become activated to form granulomas, and they become activated by responding to numerous immunomodulatory signals, we investigated the effects of beryllium (BeCl2) on a central signal transduction pathway in macrophages, increases in intracellular calcium ([Ca2+]i). Exposure of cultured murine peritoneal macrophages to low, nontoxic concentrations induced successive spikes or oscillations in [Ca2+]i. Concentrations as low as 5 nM induced significant increases in [Ca2+]i. The source of the increased [Ca2+]i was exclusively extracellular in that increases in [Ca2+]i could be completely blocked by chelating extracellular Ca2+, were inhibited by the Ca2+ channel blocker verapamil, and exposure of macrophages to BeCl2 had no effect on IP3 concentrations. DNA synthesis, a Ca2+-sensitive function, was enhanced in dividing 1LN cells and induced de novo in quiescent macrophages. Furthermore, BeCl2 enhanced DNA synthesis in the absence of coexposure to the protein kinase C activator phorbol myristate acetate. These data support the hypothesis that beryllium toxicity is in part the result of altered Ca2+ metabolism in mononuclear phagocytes consequent to reversible opening of plasma membrane channels.  (+info)

Identification of pathogenic T cells in patients with beryllium-induced lung disease. (3/202)

Chronic beryllium disease (CBD) is caused by beryllium exposure and is characterized by granulomatous inflammation with accumulation of CD4+ T cells in the lung. We analyzed TCR beta-chain and alpha-chain genes expressed by these CD4+ T cells. In the lungs of individual patients, as well as among four of five CBD patients studied, different oligoclonal expansions within the Vbeta3 subset were found to express homologous or even identical CDR3 amino acid sequences. These related expansions were specific for CBD patients, were compartmentalized to lung, and persisted at high frequency in patients with active disease. Limiting dilution cloning and analysis of coexpressed TCR alpha-chain genes confirmed that these TCRs were selectively expanded by a common Ag involving beryllium. Overall, homologous TCR beta- and alpha-chains showed identical V regions and invariant charged residues within the CDR3 but considerable variability in TCRJ usage. Remarkably, CBD patients expressing nearly identical TCRs did not share common HLA-DRB1 or DQ alleles. These results implicate particular CD4+ cells in the pathogenesis of CBD and provide insight into how beryllium is recognized in human disease.  (+info)

Partial IL-10 inhibition of the cell-mediated immune response in chronic beryllium disease. (4/202)

Chronic beryllium disease (CBD) provides a human disorder in which to study the delayed type IV hypersensitivity response to persistent Ag that leads to noncaseating pulmonary granuloma formation. We hypothesized that, in CBD, failure of IL-10 to modulate the beryllium-specific, cell-mediated immune response would result in persistent, maximal cytokine production and T lymphocyte proliferation, thus contributing to the development of granulomatous lung disease. To test this hypothesis, we used bronchoalveolar lavage cells from control and CBD subjects to evaluate the beryllium salt-specific production of endogenous IL-10 and the effects of exogenous human rIL-10 (rhIL-10) on HLA expression, on the production of IL-2, IFN-gamma, and TNF-alpha, and on T lymphocyte proliferation. Our data demonstrate that beryllium-stimulated bronchoalveolar lavage cells produce IL-10, and the neutralization of endogenous IL-10 does not increase significantly cytokine production, HLA expression, or T lymphocyte proliferation. Second, the addition of excess exogenous rhIL-10 partially inhibited the beryllium-stimulated production of IL-2, IFN-gamma, and TNF-alpha; however, we measured no change in T lymphocyte proliferation or in the percentage of alveolar macrophages expressing HLA-DP. Interestingly, beryllium salts interfered with an IL-10-stimulated decrease in the percentage of alveolar macrophages expressing HLA-DR. We conclude that, in the CBD-derived, beryllium-stimulated cell-mediated immune response, low levels of endogenous IL-10 have no appreciable effect; exogenous rhIL-10 has a limited effect on cytokine production and no effect on T lymphocyte proliferation or HLA expression.  (+info)

Chronic beryllium disease and cancer risk estimates with uncertainty for beryllium released to the air from the Rocky Flats Plant. (5/202)

Beryllium was released into the air from routine operations and three accidental fires at the Rocky Flats Plant (RFP) in Colorado from 1958 to 1989. We evaluated environmental monitoring data and developed estimates of airborne concentrations and their uncertainties and calculated lifetime cancer risks and risks of chronic beryllium disease to hypothetical receptors. This article discusses exposure-response relationships for lung cancer and chronic beryllium disease. We assigned a distribution to cancer slope factor values based on the relative risk estimates from an occupational epidemiologic study used by the U.S. Environmental Protection Agency (EPA) to determine the slope factors. We used the regional atmospheric transport code for Hanford emission tracking atmospheric transport model for exposure calculations because it is particularly well suited for long-term annual-average dispersion estimates and it incorporates spatially varying meteorologic and environmental parameters. We accounted for model prediction uncertainty by using several multiplicative stochastic correction factors that accounted for uncertainty in the dispersion estimate, the meteorology, deposition, and plume depletion. We used Monte Carlo techniques to propagate model prediction uncertainty through to the final risk calculations. We developed nine exposure scenarios of hypothetical but typical residents of the RFP area to consider the lifestyle, time spent outdoors, location, age, and sex of people who may have been exposed. We determined geometric mean incremental lifetime cancer incidence risk estimates for beryllium inhalation for each scenario. The risk estimates were < 10(-6). Predicted air concentrations were well below the current reference concentration derived by the EPA for beryllium sensitization.  (+info)

Characterization of the hinges of the effector loop in the reaction pathway of the activation of ras-proteins. Kinetics of binding of beryllium trifluoride to V29G and I36G mutants of Ha-ras-p21. (6/202)

This work experimentally confirms the pathway of activation of Ha-ras-p21, which was calculated by the method of Targeted Molecular Dynamics (TMD) (Diaz JF, Wroblowski B, Schlitter J, Engelborghs Y, 1997a, Proteins Struct Funct Genet 28:434-451). The process can be studied experimentally by analyzing the binding of BeF3- to the GDP complex of the active fluorescent mutant Y32W (Diaz JF, Sillen A, Engelborghs Y, 1997b, J Biol Chem 227:23138-23143). Two mutants, V29G and 136G, have been constructed at both sides of the effector loop of the active fluorescent mutant. This was done to check the proposed reaction pathway and to provide further insight into the mechanism of the activation of ras proteins. Both mutations accelerate the conformational isomerization with two orders of magnitude, demonstrating convincingly the role of these residues as hinges of the effector loop in one or more of the transitions of the conformational change. These results provide experimental support to the pathway calculated by TMD analysis.  (+info)

Aluminum fluoride inhibition of cabbage phospholipase D by a phosphate-mimicking mechanism. (7/202)

Aluminum fluoride (AlF(4)(-)) inhibited phospholipase D (PLD) purified from cabbage in both PIP(2)-dependent and PIP(2)-independent assays, consistent with its previously observed effect on mammalian PLD. The possibility that AlF(4)(-) may exert this effect through its known phosphate-mimicking property was examined. Inorganic phosphate, as well as two phosphate analogs, beryllium fluoride and orthovanadate, also inhibited cabbage PLD. Enzyme kinetic studies confirmed that PLD followed Hill kinetics, characteristic for allosteric enzymes, with an apparent Hill coefficient (n(app)) of 3.8, indicating positive cooperativity among multiple substrate-binding sites and suggesting possible functional oligomerization of the enzyme. AlF(4)(-) modification of PLD kinetics was consistent with a competitive mode of enzyme inhibition. It is therefore proposed that AlF(4)(-), and other phosphate analogs, inhibits plant PLD by competing with a substrate phosphate group for a substrate-binding site, thereby preventing the formation of an enzyme-phosphatidyl intermediate. This may be a conserved feature of PLD superfamily enzymes.  (+info)

Theoretical studies of metal-phosphate interactions: interaction of Li+, Na+, K+, Be++, Mg++, and Ca++ with H2PO4- and (CH3O)2PO2-: implications for nucleic acid solvation. (8/202)

Model phosphate-metal solvation complexes have been studied by ab-initio self-consistent-field techniques. The complexes studied include (RO)2PO2-(R = H or CH3) with Li+, Na+, K+, Be++, Mg++, Ca++, H2O, and Cl-. The geometries of the complexes were chosen to approximate reasonable model solvation complexes for phosphate groups in a nucleic acid environment. Calculated energies of formation vary as Be++ greater than Mg++ greater than Ca++ greater than Li+ greater than Na+ greater than K+ for all isostructural complexes, consistent with experimental binding trends. These results suggest that site binding of this type can successfully account for the relative specificities of ion binding in polynucleotides and other phosphate-containing molecules.  (+info)

Beryllium can be harmful if it is inhaled, depending on how much beryllium one inhales and how long the exposure lasts. "If beryllium air levels are high enough (greater than 1000 µg/m3), an acute condition can result. This condition resembles pneumonia and is called acute beryllium disease."[6]. Individuals who are sensitive to beryllium can develop an inflammatory reaction in the respiratory system. This is called chronic beryllium disease (CBD), and can occur many years after exposure to higher than normal levels of beryllium (greater than 0.5 µg/m3). "This disease can make you feel weak and tired, and can cause difficulty in breathing. It can also result in anorexia, weight loss, and may also lead to right side heart enlargement and heart disease in advanced cases. Some people who are sensitized to beryllium may not have any symptoms. The general population is unlikely to develop acute or chronic beryllium disease because ambient air levels of beryllium are normally very low ...
Objective: Tumor necrosis factor-alpha (TNF-alpha) is a potent cytokine involved in normal immune functions. The aim of this study was to investigate if there is an association between chronic beryllium disease or beryllium sensitization and two variants of the TAT-a gene located at -308 and -238 called TNF-alpha-308*02 and TNF-alpha-238*02. Methods: TNF-alpha-308 and TNF-alpha-238 genotyping was
Beryllium nitrate, also known as beryllium dinitrate, is an ionic beryllium salt of nitric acid with the chemical formula Be(NO3)2. Each formula unit is composed of one Be2+ cation and two NO3− anions. Beryllium nitrate is a toxic chemical, like all other beryllium compounds. It is also an irritant in small doses. When burned, it gives off irritating or toxic fumes. However, when massive short-term exposure occurs, acute pneumonitis can set in, but symptoms do not manifest themselves for 3 days. Beryllium nitrate can be prepared by reacting beryllium hydroxide in nitric acid. s "NIOSH Pocket Guide to Chemical Hazards #0054". National Institute for Occupational Safety and Health (NIOSH). "Beryllium Nitrate (ICSC)". IPCS INCHEM. Retrieved 13 September 2010. Walsh, Kenneth (2009). Beryllium chemistry and processing. ASM International. pp. 121-122. ISBN 978-0-87170-721-5. Retrieved 3 January 2011 ...
The Occupational Safety and Health Administration (OSHA) recently issued a final rule modifying a 40-year-old standard pertaining to exposure to beryllium and beryllium compounds. It contains new requirements for general, construction and shipyard industries. Similar to the recent changes to crystalline silica regulations, the rule is anticipated to save lives and protect workers from serious illnesses. Beryllium and beryllium compounds are lightweight, extremely strong metals used in the aerospace, electrical, energy, telecommunications, medical and defense fields. Beryllium-copper alloys are frequently used for their electrical and thermal conductivity as well as their hardness. Beryllium oxide is used as a component in ceramics for electronics and other electrical equipment because of its heat conductivity, high strength, hardness and electrical insulating properties. Unfortunately, beryllium is highly toxic when inhaled. Inhaling airborne beryllium can result in a lung condition known as ...
Chronic Beryllium Disease (CBD) primarily affects the lungs. CBD may occur among dental laboratory technicians when they inhale dust containing beryllium when working on items such as dental crowns, bridges, and partial denture frameworks made from dental alloys containing beryllium. CBD may develop within months after initial exposure to beryllium or may have a very slow onset and not develop until years after exposure to beryllium has occurred. The amount or length of exposure to beryllium necessary to cause a specific individual to develop CBD is not known, but recent information suggests that even short exposures (weeks or months) to levels of beryllium below OSHAs PEL of 2 μg/m3 averaged over an 8-hour day may lead to CBD in some workers (Source: OSHA). ...
People working or living near beryllium industries have the greatest potential for exposure to beryllium. Lung damage has been observed in people exposed to high levels of beryllium in the air. About 1-15% of all people occupationally-exposed to beryllium in air become sensitive to beryllium and may develop chronic beryllium disease (CBD), an irreversible and sometimes fatal scarring of the lungs. CBD may be completely asymptomatic or begin with coughing, chest pain, shortness of breath, weakness, and/or fatigue. Beryllium has been found in at least 535 of the 1,613 National Priorities List sites identified by the Environmental Protection Agency (EPA).
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Federal Register Volume 84, Number 189 (Monday, September 30, 2019)] [Rules and Regulations] [Pages 51377-51400] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2019-21037] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF LABOR Occupational Safety and Health Administration 29 CFR Parts 1915 and 1926 [Docket No. OSHA-H005C-2006-0870] RIN 1218-AD21 Occupational Exposure to Beryllium and Beryllium Compounds in Construction and Shipyard Sectors AGENCY: Occupational Safety and Health Administration (OSHA), Labor. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: OSHA is finalizing the proposed rule on occupational exposure to beryllium and beryllium compounds in construction and shipyards by delaying the compliance deadlines for nearly all provisions of the standards to September 30, 2020. The ...
Synopsis of Global Beryllium Copper Market 2017 Research Report. The report about Global Beryllium Copper Market 2017 constitutes of pervasive fundamental research along with a structured analysis of qualitative as well as quantitative facet by assorted industry connoisseurs and main opinion leaders to gain a profound insight of the market and industry performance.. The report "Global Beryllium Copper Market 2017" gives a clear sight of the present-day market scenario which comprises of historical and estimated forthcoming market size on the basis of technological growth, value and volume, prominent economic and governing elements in the market.. Do Inquiry Before Accessing Global Beryllium Copper Market 2017 Report at: https://market.biz/report/global-beryllium-copper-market-icrw/83388/#inquiry. The report "Global Beryllium Copper Market 2017" further imparts detail information about approaches and tactics used by elite key players in the Beryllium Copper industry. It also gives an extensive ...
To investigate the effects of short-term exposure of beryllium on the human immune system, the proportion of T-lymphocytes such as CD3+, CD4+, CD8+, CD95, and NK cells, andthe proportion of B cells and TNFα level in peripheral blood and immunoglobulins in the serum of 43 exposed workers and 34 healthy control subjects were studied. External exposure to beryllium was measured by atomic absorption spectrometer as recommended by the NIOSH analytical method 7300. T lymphocyte subpopulation analysis was carried out with flow cytometer. The working duration of exposed workers was less than 3 months and the mean ambient beryllium level was 3.4 μg/m(3), 112.3 μg/m(3), and 2.3 μg/m(3) in molding (furnace), deforming (grinding), and sorting processes, respectively (cited from Kim et al., 2008). However, ambient beryllium level after process change was non-detectable (| 0.1 μg/m(3)). The number of T lymphocytes and the amount of immunoglobulins in the beryllium-exposed workers and control subjects were not
DOE describes Hanford as the worlds largest environmental remediation project. In addition to the remnants of nine plutonium reactors, Hanford holds 4.6 million pounds of irradiated uranium fuel rods and 53 million gallons of radioactive waste buried in underground tanks, some of which have leaked into the groundwater and are moving toward the Columbia River. Radiation has long been the dean of hazards at nuclear cleanup sites, but in April 2009, the Hanford Advisory Board, a group chartered by DOE that includes current and former Hanford workers, medical specialists, environmental and worker-safety advocates, and local government officials, wrote a letter advising the department that from a worker safety perspective ... beryllium currently rates as a greater hazard than radiation. The letter included a disquieting calculation: Studies have found that between 2 percent and 6 percent of people exposed to beryllium will become sensitized or develop CBD. At the time of the letter, 115 of 4,583 ...
We read with great interest the Letter to the Editor by Newman and colleagues(1) in response to our article entitled Industries in the United States with Airborne Beryllium Exposure and Estimates of the Number of Current Workers Potentially Exposed.(2) We commend the authors of the letter for raising a number of issues that, while clearly beyond the scope of our article, are relevant to the heal
PITTSBURGH, June 23, 2017 - The United Steelworkers (USW) today blasted the Administrations proposal to cancel important protections for shipyard and construction workers exposed to beryllium. Under the proposal OSHA released this morning, employers would no longer have to measure beryllium levels in the workplace or provide medical testing to workers at risk of fatal lung disease. In addition, workers would not have the right to wear protective clothing or to shower at the end of the work shift, making it possible for beryllium to be taken home and exposed to spouses and children. Beryllium is a highly useful metal, but it can cause a crippling and sometimes fatal disease that ultimately robs sufferers of the ability to breathe. OSHA issued new beryllium standards in January covering workers in all industries. Todays proposal eliminates most of the provisions covering the maritime and construction industries. The USW has members in both industries, including workers at the Newport News ...
The first problem was one I was handed sort of on a silver platter when I went to the Mass General Hospital in Boston. I was in the department of medicine at Harvard was located at Mass General Hospital in the Huntington laboratories. The Chief of the laboratory, Dr. Joseph Aub who is a world known physician told me about beryllium and the fact that beryllium was causing very severe illness in women who were working in factories to remove the phosphors from inside fluorescent lamp bulbs. They wanted to retrieve the phosphors. One of the key ingredients in the phosphor was beryllium, the metal beryllium. Its the lightest metal with an atomic weight of 9.I think thats right. Its long time ago.. It caused some interesting effects that the scientists have studied, mainly if injected into rabbits it caused bad bone tumors. If it was injected into-well, these women who were scrubbing out the tubes died, almost all of them of severe pulmonary disease as a result of breathing in the beryllium. So he ...
Summary of lung function and beryllium exposure of case 2. (A) Results of pulmonary function tests before, during, and after acute work-related illness. (B) TWA
United States Beryllium Aluminum Alloy Industry 2016 Market Research Report is a new market research publication announced by Reportstack. This report is a professional and in-depth study on the current state of the Beryllium Aluminum Alloy industry.. The report provides a basic overview of the industry including definitions, classifications, applications and industry chain structure. The Beryllium Aluminum Alloy market analysis is provided for the United States markets including development trends, competitive landscape analysis, and key regions development status.. Development policies and plans are discussed as well as manufacturing processes and Bill of Materials cost structures are also analyzed. This report also states import/export consumption, supply and demand Figures, cost, price, revenue and gross margins.. To access full report with TOC, please visit United States Beryllium Aluminum Alloy Industry 2016 Market Research Report. The report focuses on United States major leading industry ...
Press Release issued Jul 21, 2017: The purpose of Global Beryllium Oxide (BeO) Powder Market report is to provide the newest industry data and Beryllium Oxide (BeO) Powder industry future trends, allowing consumers to identify the Beryllium Oxide (BeO) Powder market Application, Type, Manufacturers and Regions, Beryllium Oxide (BeO) Powder market Forecast up to 2022.
We report the formation of beryllium doped plasma polymerized coatings derived from a helical resonator deposition apparatus, using diethylberyllium as the organometaric source. These coatings had an appearance not unlike plain plasma polymer and were relatively stable to ambient exposure. The coatings were characterized by Inductively Coupled Plasma Mass Spectrometry and X-Ray Photoelectron Spectroscopy. Coating rates approaching 0.7 {mu}m hr{sup {minus}1} were obtained with a beryllium-to-carbon ratio of 1:1.3. There is also a significant oxygen presence in the coating as well which is attributed to oxidation upon exposure of the coating to air. The XPS data show only one peak for beryllium with the preponderance of the XPS data suggesting that the beryllium exists as BeO. Diethylberyllium was found to be inadequate as a source for beryllium doped plasma polymer, due to thermal decomposition and low vapor recovery rates.
Analytical techniques have been developed for the determination of carbon in high-purity beryllium. The method, a modification of the combustion-conductometric technique, permits an increase in the sample size of about four times, thereby achieving a fourfold reduction in the lower limit of useful analytical results. Sensitivity has been demonstrated for carbon contents as low as 25 ppm. The accuracy of a solution distillation technique for determination of nitrogen in high-purity beryllium has been established. A modified micro-Kjeldahl still was employed. Nitrogen contents less than 10 ppm can be accurately determined. Three batches of beryllium weighing roughly 5 pounds each have been prepared. Each batch was attritioned, sized and blended to provide a homogeneous material for analytical standards. These standards, in the form of coarse chips, have the following carbon and nitrogen contents for the 3 standards in parts per million, respectively: carbon, 25, 101, and 120 and nitrogen, 11, 55,
Los Alamos National Laboratory announced Wednesday it is notifying nearly 2,000 current and former employees and visitors that they may have been exposed to beryllium in the lab and may be at risk of disease.
On January 9, 2017, OSHA published a final rule amending its standards for occupational exposure to beryllium and beryllium compounds. United States Employment and HR Arnold & Porter 26 Jan 2017
The question of whether the federal government has been at fault for the deaths and injuries of American beryllium workers will be the subject of a formal investigation by the General Accounting Office, the investigative arm of Congress.. The order to GAO to study the hazards of beryllium, a metal used by the Department of Defense and the Department of Energy because of its light weight and strength in the manufacture of weapons, came from a bipartisan group of eight members of Congress.. Led by Sen. Mike DeWine (R., O.), the ad hoc coalition includes Sens. John McCain (R., Ariz.) and Robert Bennett (R., Utah); and Reps. Marcy Kaptur (D., Toledo), Chris Shays (R., Conn.), Jim Kolbe (R., Ariz.), Tim Holden (D., Pa.), and Paul Kanjorski (D., Pa.).. Mr. DeWine began the call for a GAO investigation in April and has since been organizing and collecting support from colleagues. He said his actions were sparked by a series in The Blade that detailed a decades-long pattern of the U.S. government ...
Beryllium coatings with varying thicknesses and columnar grain sizes were deposited by low temperature magnetron sputtering and wet chemically etched to enhance diffuse absorption of light. After etching these coatings exhibited a matte black surface finish and low specular reflectance (below 2%) in the IR up to a critical wavelength dependent upon the original grain size of the coating. Extremely thick coatings (350 µm) with original grain sizes of 10 to 12 µm were produced which exhibited specular reflectances below 0.5% up to 50 µm wavelength and a Lambertian BRDF at 10.6 µm averaging 4.3x10-3 ster-1. Scanning electron micrographs are presented for etched and unetched beryllium coatings which showed the etching process produces roughness and porosity over several size scales simultaneously with the maximum size scale limited by the initial coating grain size and thickness. This technique for producing diffuse absorbing baffle materials has great versatility in choice of coating material and
With an atomic number of 4, beryllium has four electrons: two electron shells surround the atoms nucleus and two electrons in each shell. Beryllium is a rigid metal with an atomic mass of 9.0122. It...
Find Beryllium Copper related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of Beryllium Copper information.
Ending decades of denial and inaction, the federal government has issued a tough new exposure standard for people who work with the toxic metal beryllium.
ESPI High Purity Metal Specialists since 1950 with a company mission to provide a reliable resource for researchers high purity metals, metal compounds and metal alloys for all major universities, international and domestic manufacturing companies and corporate R&D laboratories worldwide, as well as most U.S. government research laboratories. Also manufacturer of DeContam®, an aggressive water based, non-hazardous cleansing agent specifically formulated for the electronic, aerospace and nuclear industries.
LORAIN -- A city councilwoman who fought for more than a year to ban a controversial substance within city limits said she now can rest easier. A representative from Brush Wellman Inc. signed a voluntary agreement with the city on Wednesday, stating that the companys bronze engineering plant in the Lorain would not produce, store or manufacture beryllium.. Beryllium, a compound used as an alloy with other metals in the defense, electronics and automotive industry, has been known to cause chronic and fatal lung disease if its dust is inhaled during its manufacturing process.. State and federal laws regulate the production of beryllium. But the compound earned a reputation locally at the former Brush Beryllium plant on West First Street in Lorain during the 1930s and 40s. Several workers there and residents living near the plant at the time became ill and died, according to a study completed in 1944.. City Councilwoman Kathy Tavenner, D-at large, had fought for the past 15 months to get Council ...
Beryllium copper springs are cold rolled and may be mill hardened before fabrication. Good corrosion resistance and electrical conductivity.
Products by element - Beryllium, include metal, alloy, compounds and fabrication products like sputtering targets etc. from ALB Materials Inc. - Page Total 1 Page 5 Records
This invention recognizes the hazards of beryllium and beryllium oxide in automotive applications and offers alternative material solutions. In particular, commercial electrochromic mirrors use beryllium comprising alloys for busbars and may also use beryllium oxide for the electronics used to power and control these mirrors. Further, this can be combined by reducing other known hazards such as mercury, cadmium, lead and antimony compounds.
QUEBEC CITY, QUEBEC--(Marketwire - March 31, 2010) - Nemaska Exploration Inc. («Nemaska» or «the Corporation») (TSX VENTURE:NMX) is pleased to announce that the most recent results from its current drill program on its lithium/beryllium (Whabouchi project, 100 % owned) continues to prove the high-grade, impressive width and continuity of the mineralized zone. Nemaska has received an additional 1,057 results from 15 holes. The latest results include 52.3 m at 1.85% Li2O, 165 ppm Be and 1579 ppm Rb and 22.8 m at 1.91 % Li2O, 130 ppm Be and 1503 ppm Rb.. «I am very pleased with the grade and width of our drill results to date which favourably compare to any other spodumene bearing pegmatite project currently in development around the world», commented Mr. Guy Bourassa, President and CEO. «The current drilling should be completed by mid-April, allowing us to finalize the resource calculation presently underway. I am also pleased to see that the Be and Rb grades remain constant throughout the ...
Beryllium dating is used to estimate the time a rock has been exposed on the surface of the Earth, as well as erosion and sedimentation rates.. Beryllium-10 is another cosmogenic nuclide. Like carbon-14, most of it is formed in the earths upper atmosphere. After formation, beryllium-10 binds to atmospheric dust particles or dissolves in atmospheric water vapor. It is transported to earth surface in rain so consequently it has a much shorter atmospheric residence time than carbon-14. It accumulates on the earths surface and depending upon the sedimentation regime in the local environment, it can be used to date surface accumulation rates, surface erosion rates, or for dating layers within ice cores. Its half-life is 1.39 million years.. Vanishingly small amounts of beryllium-10, carbon-14 and aluminum-26 are also created at the earths surface. The creation occurs within minerals the upper meter of rocks exposed directly to the sky. If rocks are undisturbed for millennia, differences in the ...
Pittsburgh Post-Gazette editorial urging exposure standards for all workers who could be exposed to beryllium in their jobs. (December 15, 1999) ...
Buy 82-6517 - AMPHENOL RF - RF / Coaxial Connector, N Coaxial, Straight Jack, Solder, 50 ohm, LMR-400, Beryllium Copper at Farnell element14. order 82-6517 now! great prices with fast delivery on AMPHENOL RF products.
The report on Beryllium Oxide (BeO) Powder Market offers a complete analysis of the market. This was achieved with the help of the chronological data that was collected, the exhaustive qualitative insights, and the statistical data of the market. Thorough studies and researches were conducted and reliable methodologies were used to verify the data that was collected. Industrial experts were consulted and their opinions were taken into consideration while making studies of the market.. Primary researches were made which include surveys, opinions of seasoned analysts, and interviews. For collecting and verifying the data, the use of secondary researches was also made which includes reputable paid sources, industry body databases, entails, and trade journals. Both qualitative and quantitative assessments were made across different industrial aspects and market verticals.. Analysis of different trends that is prevailing in the market was made. The segmentation of the market was included. Studies of ...
Quantum molecular dynamics study of expanded beryllium: evolution from warm dense matter to atomic fluid.: By performing quantum molecular dynamics (QMD) simula
how many protons does beryllium - 28 images - 3d render atom structure calcium isolated stock, atomic structure, october 13 2015 www mrascience, postcards from planet earth, students as electrons bohr models reduced
Beryllium nitride, also called triberyllium nitride, is the chemical compound with the molecular formula Be3N2 and a molar mass is 55.06 grams per mole. It is a yellow-white powder at standard...
Berylliums role in the SSGCID will include gene construction and expression testing in bacterial and cell-free systems, large-scale protein production and purification; crystallization screening and production, pre-screening of crystals before they are sent for data collection at the synchrotron beam-lines, and structure determination using the resulting data.
The heat treatment of corundum involving lattice diffusion of beryllium (Be) at temperatures over 1800°C has become a major issue in the gem trade.
This report analyzes the worldwide markets for Beryllium in Kilograms by the following End-Use Segments: Telecom Infrastructure/Computing, Electric Equipment
Find great deals for Be Beryllium: The Element. Physical Properties (Continued) and Electrochemical Behavior by Vera Haase, Lieselotte Berg, Gudrun Bar, Gerhard Czack, Dieter Gras (Paperback, 2013). Shop with confidence on eBay!
Beryllium 2007 Mustang Saleen S281 Extreme coupe, front right view. This photo is available in two wallpaper sizes; 800-600 wallpaper and 1024-768 wallpaper.
To see a rotating video of (almost) any of the samples of Beryllium from The Elements, click it below. Links will open in a new window ...
I have seen ZnO in silicone grease, Indium washers, BeO washers, plain silicone grease, and ZnO in petroleum grease, but NEVER BeO grease. Some space hardware does, however make use of beryllium metal (it is light and a good thermal conductor) as a backplane material. It was used in Motorolas Iridium program. Scott ----- Original Message ----- From: J. Forster ,jfor at QUIK.COM, To: ,BOATANCHORS at LISTSERV.TEMPE.GOV, Sent: Wednesday, November 03, 2004 9:44 PM Subject: Re: Thermal Grease , It is possible that at one time BeO was used in grease, but Ive never , seen it and , Ive been using the stuff since 1963. I very much doubt its in commercial , use , anymore. In the late 60s, I was using BeO washers on TO-3 transistors. , , FWIW, , -John , , , Garey Barrell wrote: , ,, Wes - ,, ,, That makes me feel better. I thought I remembered beryllium oxide ,, grease. NASA certainly was well above us mere mortals! At least in ,, the 60s when I was there... ,, ,, Garey - K4OAH ,, ,, W. Kranitz ...
Beryllium Mineralization* Located in the northwest part of the Round Top laccolith, Rubin, et. al. (1990) describes beryllium mineralization with potential economic importance. The beryllium minerals are hosted by fluorspar replaced limestone and rhyolite that occurs along the contact between the rhyolite and the Buda Limestone Formation. This contact is a steeply dipping fault, exposing a cross section of the Buda Limestone to mineralization and is part of the laccolith floor. Fluorspar replacement extends for 23 feet into the limestone and grades into recrystallized and unaltered limestone. The rhyolite was incompletely fluoritized with only the feldspar phenocrysts being replaced. Along the contact, the rhyolite and limestone is brecciated and the breccias are cemented with fluorite. Parallel to the steeply dipping contact, bands of hydrothermal minerals commonly occur in the replaced limestone.. Mineral assemblages reported by Rubin et. al. (1990) from within the ore body were identified ...
A $7m contract for the supply of beryllium metal has been awarded for the Joint European Torus (JET), the largest experimental nuclear fusion reactor in the world, which is to be recommissioned to carry out tests for the ITER project.
Substances, mixtures and exposure circumstances in this list have been classified by the International Agency for Research on Cancer (IARC) as Group 1: The agent (mixture) is carcinogenic to humans. The exposure circumstance entails exposures that are carcinogenic to humans. This category is used when there is sufficient evidence of carcinogenicity in humans. Exceptionally, an agent (mixture) may be placed in this category when evidence of carcinogenicity in humans is less than sufficient but there is sufficient evidence of carcinogenicity in experimental animals and strong evidence in exposed humans that the agent (mixture) acts through a relevant mechanism of carcinogenicity. 2-Naphthylamine Acetaldehyde associated with consumption of alcoholic beverages 4-Aminobiphenyl Aflatoxins Aristolochic acids, and plants containing them Arsenic and inorganic arsenic compounds1 Asbestos Azathioprine Benzene Benzidine, and dyes metabolized to Benzo[a]pyrene Beryllium and beryllium compounds2 Chlornapazine ...
Poll: Que beso les parece que fue el mas romantico para Vilu? El De Pablo Espinosa(tomas) O jorge blanco(leon) ... Yo Digo que el beso mas romantico fue el que le dio Tomi A Vilu por que fue como se conocieron pero con un bes
Results The DPβE69 residue regardless of zygosity, but particularly if present on non-*0201 alleles, was of primary importance for the development of CBD and BeS, while other negatively charged residues DPβDE55, 56 and DPβDE84, 85 incrementally increased, although not independently, the risk. The DPβE69 positive alleles with charge −7 or −9 were associated with both CBD and BeS. The polymorphic residues DPβE69, DPβDE55, 56 and DPβDE84, 85 were responsible for the −9 charge and the first two residues for the −7 charge. ...
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May cause inflammation of lungs, nose, throat and the mucous membrane of both the trachea and bronchi, hyperemia, edema, hemorrhage with mild edema of the brain, inflammation of the liver, focal hemorrhage of the spleen, granulomatous, crippling, incurable lung disease, pneumonitis, pulmonary dysfunction, heart enlargement and congestive heart failure, cyanosis, enlargement of liver and spleen, digital clubbing, formation of kidney stones, malignant tumors, cellular infiltration, interstices of various organs and tissues and calcific inclusions in cells and tissues ...
The OLD SEAL Team knife (made by Buck Knives) had an alloy of beryllium and titanium, thus it had no magnetic properties, but guys kept getting tumors in their hands from sharpening the knife and getting tiny shards of metal into their skin. Even that didnt stop the military from continuing the use of the knife until 1991 when the great knife-off at NAVSPECWARGRUONE when the MPK titanium knife (made by Mission Knives) won the competition - beryllium free.. ReplyDelete ...
Dielectric properties were evaluated on specimens produced by various fabrication techniques. The average dielectric strength values for samples fired at 1560C were about 250 volts/mil. Gross differences were not noted as a function of fabrication technique. Dielectric constant and loss factor values were about 6.4 and 0.0007 respectively for as-sintered specimens. Machined samples showed an increased dielectric loss over the assintered specimens when measured following a water pretreatment as specified by MIL-I-10A. Firing temperature versus grain size studies on 99 per cent BeO compacts showed that average grain size ranged from about 13 microns at 1460C to 33 microns at 1560C. Average grain sizes were fairly constant in the firing temperature range 1510 - 1560C, but a significant change was noted at 1490C. Fired densities were about 97 per cent of theoretical from 1490 - 1560C. The fired density at 1460C was 96 per cent of theoretical. Flexural strength results showed a slight difference
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult ...
OSHAs new silica rule is designed to reduce the risk of lung cancer, silicosis, chronic obstructive pulmonary disease, and kidney disease in the workforce.
Harmonised classification and labelling is a legally binding classification and labelling for a substance, agreed at European Community level. Harmonisation is based on the substances physical, toxicological and eco-toxicological hazard assessment. The Hazard classification and labelling section uses the signal word, pictogram(s) and hazard statements of the substance under the harmonised classification and labelling (CLH) as its primary source of information.. If the substance is covered by more than one CLH entry (e.g. disodium tetraborate EC no. 215-540-4, is covered by three harmonisations: 005-011-00-4; 005-011-01-1 and 005-011-02-9), CLH information cannot be displayed in the InfoCard as the difference between the CLH classifications requires manual interpretation or verification. If a substance is classified under multiple CLH entries, a link to the C&L Inventory is provided to allow users to view CLH information associated with the substance and no text is automatically ...
UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW YORK,June 25, 1969,The opinion of the court was delivered by: COOPER,Securities and Exchange Commission Plaintiff v. American Beryllium & Oil Corporation Defendants. [6] Cooper, District Judge.
I have referred to Philip Tanedo* as a rising star in my 2015 blogpost titled Physics Tutorials by Philip Tanedo. In 2015 he was a post-doctoral research fellow at the UC Irvine physics department. His group at the UC Irvine (led by Jonathan Feng) recently published a paper (also see the longer arxiv version which is freely accesible)…
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Parabolic Drugs has invested ambitiously in developing World Class manufacturing facilities with operational excellence.. Parabolic Drugs has three state of the art manufacturing facilities across different locations and a world class CRO/R&D centre at Barwala. Its manufacturing facilities are well equipped to produce quality products while adhering to safety norms and stringent GMP compliance.. Cephalosporin Facility. PDLs Cephalosporin facility at Derabassi is a 27 acre site accredited by German MOH for European Good Manufacturing Practices.. This site has nine manufacturing plants that enables it to produce wide range of latest generation cephalosporin APIs and intermediates. It also has a dedicated quality control and quality assurance unit, solvent recovery units, three R&D laboratories, a pilot plant for scale-up of new technologies developed by our in-house R&D, three boilers and utilities, two warehouses and in house healthcare centre. Accreditations:. -European GMP. -WHO GMP. -ISO ...
Based on information from the Department of Energy and Department of Labor, most of the locations in Ohio that may have workers with beryllium sensitivity or CBD are located in Southern Ohio (Piketon Gaseous Diffusion Facility) or facilities operated by Brush Wellman near Cleveland and Sandusky. It is possible that other vendors or contractors to these facilities may have employees who develop these conditions. Regardless, these claims most likely will not be widespread and there will probably be limited interest in examiners to learn about the conditions. Only examiners who may evaluate these individuals routinely will be familiar with process of obtaining blood and sending for the BeLPT. It is probably not reasonable to require or allow examiners to perform bronchoalveolar lavage or lung biopsy since these are independent medical evaluations and invasive procedures are typically not performed. HRCT scan is probably also not beneficial unless requested by the examiner when absolutely necessary ...
The company plans to utilize this facility to manufacture small quantities of the listed controlled substances in bulk and to conduct analytical testing in support of the companys primary manufacturing facility in West Deptford, New Jersey. The controlled substances manufactured in bulk at this facility will be distributed to the companys customers.. No comments or objections have been received. DEA has considered the factors in 21 U.S.C. 823(a) and determined that the registration of Johnson Matthey Pharmaceutical Materials, Inc. to manufacture the listed basic classes of controlled substances is consistent with the public interest at this time. DEA has investigated Johnson Matthey Pharmaceutical Materials, Inc. to ensure that the companys registration is consistent with the public interest. The investigation has included inspection and testing of the companys physical security systems, verification of the companys compliance with state and local laws, and a review of the companys ...
I recommend this test when I suspect metal toxicity as a cause of symptoms. The test measures urinary levels of the following elements:- aluminium, antimony, arsenic, barium, beryllium, cadmium, chromium, cobalt, copper, lead, manganese, mercury, molybdenum, nickel, selenium, thallium, tin and zinc. It is performed on a urine sample collected after a dose of DMSA, an substance which chelates metals and allows them to be excreted in urine. The reason for this is that toxic metals get "stuck" in body tissues but DMSA "grabs" them so they are excreted in urine. This is the most reliable measure of toxic metals. ...
Friedrich Wöhler, born 31 Jul 1800, was a German chemist who co-discovered a new element. Having studied first medicine, then mineralogy, it was chemistry that became his primary interest. He found a method in 1827 for the production of metallic aluminum in the form of a grey powder by heating aluminum chloride with potassium. In 1828, he succeeded in the isolation of beryllium as a black-grey powder as well as of yttrium and (1856) crystalline silicon. His is most well-known for the synthesis of urea from ammonium cyanate (1828), which created an organic compound from an inorganic one, showing there was no absolute distinction between the two areas of chemical study. In 1862, he produced acetylene from calcium carbide ...
Neutron-deficient nuclei along the proton drip line in the mass region 80-90 have been populated in relativistic projectile fragmentation reactions at GSI, Germany. A 750 MeV per nucleon beam of 107 47Ag60 provided by the SIS-18 synchrotron was fragmented on a 4 g/cm2 target of beryllium. The reaction products were separated and unambiguously identified using the Fragment Separator (FRS) with its ancillary detectors. The ions produced were slowed down by means of a variable thickness aluminium degrader and implanted in a 7 mm multilayer perspex block located at the centre of the high-efficiency Stopped RISING array. Gamma rays emitted from the decay of nano-to-millisecond isomeric states were detected in the array and correlated with the arrival of the associated ion. This allowed the observation of previously unreported excited states in the odd-odd N = Z nuclei, 82 41Nb41 86 43TC43. The new data suggest the low-lying structures of these proton drip line nuclei are dominated by a T = 1, np ...
nt. Description: Liquid, slightly acidic material. pH: 5.0-5.5. Applications/Compatibility: Aluminum, Brass, Copper, beryllium, zinc. Contaminants: Oxidation, scale, tarnish, oils, fingerprints, dust. Use: Conc: 1 part to 5 parts ...
The past decade has seen an intense focus on mechanisms of apoptosis. Many important observations on the various signaling pathways mediating apoptotic cell death have been made and our understanding of the importance of apoptosis in both normal growth and development and pathophysiology has greatly increased. In addition, mechanisms of metal-induced toxicity continue to be of interest given the ubiquitous nature of these contaminants. The purpose of this review is to summarize our current understanding of the apoptotic pathways that are initiated by metals, mainly established (arsenic, cadmium, chromium, nickel, beryllium) and possible (lead, antimony, cobalt) human carcinogens. Increased understanding of metal-induced apoptosis is critical to illuminate mechanisms of metal-induced carcinogenesis, as well as the potential of metal species (arsenic) as chemotherapeutic agents.
Our diagnostic laboratories offer laboratory assays in complement, immunology, molecular, beryllium and nickel metals testing and mycobacteriology (TB & NTM).
Our diagnostic laboratories offer laboratory assays in complement, immunology, molecular, beryllium and nickel metals testing and mycobacteriology (TB & NTM).
One major step needed for fusion to become a reliable energy source is the development of materials for the extreme conditions (high temperature, radioactivity and erosion) caused by hot plasmas. The main goal of the present study is to use and optimise ion beam methods (lateral resolution and sensitivity) to characterise the distribution of hydrogen isotopes that act as fuel. Materials from the test reactors JET (Joint European Torus), TEXTOR (Tokamak Experiment for Technology Oriented Research) and Tore Supra have been investigated.. Deuterium, beryllium and carbon were measured by elastic recoil detection analysis (ERDA) and nuclear reaction analysis (NRA). To ensure high 3D spatial resolution a nuclear microbeam (spot size ,10 µm) was used with 3He and 28Si beams. The release of hydrogen caused by the primary ion beam was monitored and accounted for.. Large variations in surface (top 10 µm) deuterium concentrations in carbon fibre composites (CFC) from Tore Supra and TEXTOR was found, ...
Constant complex atomic reactions (nuclear fusion reactions, for extra credit ) are taking place on our sun called Proton-Proton chain reactions. During these reactions, Hydrogen (H) atoms are combined together to create isotopes of Helium (He). See the image below (note: MeV denotes megaelectron volts, a measure of electric energy). The result generates electricity that radiates all the way to Earth. The resulting He isotopes undergo more atomic reactions that involve Beryllium and Lithium, further resulting in a release of energy. The suns energy is radiated to Earth in the form of electro-magnetism ...
The best type of fusion/fission hybrid has a very small zone of fusion preferably a point source. The Hilion reactor has this very important feature and because of the small size of the fusion zone it facilitates an all inclosing blanket with almost perfect closure. Because of the ideal efficiency of its almost perfect liquid blanket envelope, I can see this type of subcritical reactor producing about 5500 kgs of pure U232/U233 per year. Very few neutrons would be wasted. Beryllium in the blanket would almost double the production of the fusion neutron flux. To maximize U233 production, no lithium should be included in the blanket. Tritium would come from the waste flow of its dependent parasitic fission reactors; its customers ...
Structure of the NIF "Revision 6" beryllium capsule. The capsule has an outer radius of 1,051 microns and consists of a 180-micron-thick layer of graded copper (Cu)-doped Be ablator, a 90-micron-thick layer (about 0.2 milligrams) of deuterium-tritium (DT) ice, and a spherical volume of DT gas. The ablator layer comprises five sublayers (from outside in): an undoped 150.5-micron layer, a 1.2-percent doped 4.5-micron layer, a 3-percent doped 16-micron layer, a 1.2-percent doped 4.5-micron layer, and an undoped 4.5-micron layer.giving a higher fuel implosion velocity for a given x-ray drive; and to higher ablation velocities, providing more ablative stabilization and reducing the effect of hydrodynamic instabilities on implosion performance. Be ablator advantages provide a larger target design optimization space and could significantly improve NIFs experimental margin for ignition.. An optimized Be ignition target design known as "NIF Revision 6" takes advantage of knowledge gained from recent NIF ...
Research reactor BR2 is to undergo a thorough maintenance and modernisation operation until mid-2016. To guarantee a safe and efficient operation, various systems and components will be replaced as a precaution. Like any other major nuclear infrastructure in Belgium, reactor BR2 is subject to decennial safety assessments. In preparation for the upcoming assessment, we started a systematic screening of the installation three years ago. During this screening, a risk analysis of all structures, systems and components of the BR2 was carried out, with particular attention to the impact of ageing on safety. In addition, the impact of ageing on the availability and efficiency of BR2 was also screened. In order to be able to use the reactor safely and efficiently in the coming period of 10 years, a preventive replacement of the beryllium matrix was required (see illustration). This matrix forms the heart of the reactor, and is composed of 79 channels, in which nuclear fuel elements, control rods and ...
January 21,2013. A nearby short duration gamma-ray burst may be the cause of an intense blast of high-energy radiation that hit the Earth in the 8th century, according to new research led by astronomers Valeri Hambaryan and Ralph Neuhӓuser. The two scientists, based at the Astrophysics Institute of the University of Jena in Germany, publish their results in the journal Monthly Notices of the Royal Astronomical Society. In 2012 scientist Fusa Miyake announced the detection of high levels of the isotope Carbon-14 and Beryllium-10 in tree rings formed in 775 CE, suggesting that a burst of radiation struck the Earth in the year 774 or 775. Carbon-14 and Beryllium-10 form when radiation from space collides with nitrogen atoms, which then decay to these heavier forms of carbon and beryllium. The earlier research ruled out the nearby explosion of a massive star (a supernova) as nothing was recorded in observations at the time and no remnant has been found.. (snip ...
This post is cross-posted from ParticleBites. Article: Particle Physics Models for the 17 MeV Anomaly in Beryllium Nuclear Decays Authors: J.L. Feng, B. Fornal, I. Galon, S. Gardner, J. Smolinsky, T. M. P. Tait, F. Tanedo Reference: arXiv:1608.03591 (Submitted to Phys. Rev. D) Also featuring the results from: - Gulyás et al., "A pair spectrometer for measuring multipolarities of. Read the full article ...
BLACKIE COLLINS POLYMER LETTER OPENER * Glass filled polymer construction. * Beryllium copper springs. * No Magnetic parts, 100% non-magnetic! *...
Beryllium Nitride Be3N2 bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term contracts & credit cards/PayPal accepted.
Diffusion treatment is a treatment used to alter the color of a gemstone (mostly for sapphires). Smaller atoms (usually beryllium) enter the lattice of the crystal and penetrate it deeply. This fairly recent treatment (1990s) is in some cases only detectable by the use of sophisticated laboratory techniques.. ...
The SSGCID includes three Western Washington-based research organizations: CIDResearch, Beryllium, the University of Washington, and Washington State University located in Pullman, Washington.
Usher Debuts The Be-718 Tiny Dancer Speaker Featuring Beryllium Tweeters Experience The Be-718 Speakers at the Home Entertainment Show Room 1507 in New Yor
If you neеd a laρtop for CPU hungry graphics, you will require a larger laptop, οr even a Maϲ - Book. Laptop protection; the best laptop briefcases are incorporated with built-іn shock absorbers, so it could ρrovide necessary protection from severe jarring, particularly wҺen the lаptop is aсcidеntally dropped ...
Estimado Alejo: Todo lo anteriormente expuesto definitivamente prevee un riesgo posible. Este riesgo en trminos de magnitud depender de la frecuencia y estilo de la relacin. Enfermedades tales...
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Article Wire manufacturing facility - Case Study. Bench-Scale Stormwater Treatment StudyA large wire manufacturer in Washington State asked Dungeness Environmental to perform a treatability study on their stormwater run-off. The run-off requires reme...
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All of our products are manufactured in state of the art manufacturing facilities that are all climate controlled monitored and FDA registered with our unique combination of chemists formulators product experts and raw material sourcing that have allowed us to bring to market some of the most life changing products the industry has ever seen.
As market leaders, Carr Day & Martin is dedicated to producing premium products that provide a complete care program for their customers. Great care is taken to manufacture each product at a state-of-the-art manufacturing facility in Lytham, England. You can count on high quality products priced right ...
The impressive, 18,000-square-foot manufacturing facility is home to the states second largest operating brewhouse (500 bbl), state-of-the-art evaporation, blending and drying equipment, and . . .
Article Case study - Increasing oxidizer capacity by 80,000 SCFM. Overview A recreational products company bought a three year-old manufacturing facility with an existing regenerative thermal oxidizer (RTO) for the production of their outboard engin...
Unfortunately no cure has been found yet; but treatment and management of chronic beryllium disease can slow down the progression of this disease.
Silver, K., Kukulka, G., Gorniewicz, J., and Rayman, K., Genetic susceptibility testing for beryllium: Worker Knowledge, beliefs and attitudes, Amer. J. of Industrial Med., 54(7): 521-32 (July 2011) Dobbin, D., Turpin, R.D., Silver, K. et al, Hazardous Waste. Chapter 10. In: Occupational Health: Recognizing and Preventing Work-Related Disease and Injury, 5 th edition. Levy, B.S., Wegman, D.H., Baron, S., and Sokas, R. Eds. (New York: Oxford University Press, 2011), pp. Silver, K. and Clapp, R., Environmental surveillance at Los Alamos: an independent reassessment of historical data, Risk Analysis, 26(4): 893-906 (August 2006) Silver, K. and Sharp, R., Ethical considerations in testing workers for the -Glu69 marker of genetic susceptibility to chronic beryllium disease, 48(4): 434-443 (April 2006) Silver, K., The Energy Employees Occupational Illness Compensation Program Act. AAOHN Journal, 53(6): 267-77 (June 2005) SELECTED PRESENTATIONS Green, C.C. and Silver, K., Analysis of the Energy Claims ...
This is the decision of the Final Adjudication Branch concerning your claim for compensation under Part B of the Energy Employees Occupational Illness Compensation Program Act of 2000, as amended, 42 U.S.C. 7384 et seq. (EEOICPA or the Act). This decision affirms the recommended acceptance issued on November 30, 2004.. STATEMENT OF THE CASE. On May 28, 2004, you filed a claim for survivor benefits, as the widow of [Employee], Form EE-2, under Part B of the EEOICPA. You identified breathing problems and chronic beryllium disease (CBD) as the claimed conditions. You also filed a Form EE-3 indicating that your husband was employed by F.H. McGraw at the Paducah Gaseous Diffusion Plant in Paducah, Kentucky from 1951 to I don t remember. The Department of Energy (DOE) was unable to verify employment, however, they did confirm that F.H. McGraw held a number of contracts, during this time, at the Paducah Site. You submitted Social Security records indicating that your husband was employed by F.H. McGraw ...
The first part of this book deals with the methods used to define and study occupational respiratory diseases and includes an assessment of chest x-rays, pulmonary function data, and lung impairment. The second part of the book deals with specific classes of respiratory diseases, their definition, epidemiology, diagnosis and treatment. Specific topics in the second section are pneumoconioses (silicosis, acute silicosis, silicate pneumoconiosis, asbestosis, coal workers pneumoconiosis and exposure to other carbonaceous dusts, beryllium disease, pulmonary reactions to miscellaneous mineral dusts as well as man made mineral fibers and miscellaneous pneumoconioses), occupational asthma and rhinitis, hypersensitivity, chronic airways obstruction (chronic bronchitis and emphysema), byssinosis, effects of inhaled toxic agents (acute and chronic respiratory effects, and acute systemic effects of inhaled occupational agents), neoplasms (epidemiology of occupationally induced lung cancer, pathology of ...
What I saw on Sarah Palin was too much makeup, too much winking and too much flirting with the audience. Very unstatesmanlike and unbecoming of a VP. She only recited memorized scripts. If she didnt have the appropriate memorized script, she didnt answer the question. Ronny Reagan at least read the script well.. "Clean" Coal contains: URANIUM, ARSENIC, LEAD, MERCURY, Antimony, Cobalt, Nickel, Copper, Selenium, Barium, Fluorine, Silver, Beryllium, Iron, Sulfur, Boron, Titanium, Cadmium, Magnesium, Thorium, Calcium, Manganese, Vanadium, Chlorine, Aluminum, Chromium, Molybdenum and Zinc. There is so much of these elements in coal that cinders and coal smoke are actually valuable ores. We should be able to get all the uranium and thorium we need to fuel nuclear power plants for centuries by using cinders and smoke as ore. Remember that, to get a given amount of energy, you need on the order of 100 MILLION TIMES as much coal as uranium. That means the coal mine has to be 100 million times larger ...
In the figure above, we take the abundance of silicon as a "standard candle" or reference point, and compare the abundances (relative to silicon) of the elements in the solar system and in galactic cosmic rays. Silicon is used as the reference because it is a common intermediate-weight element that is easy to measure. We see that there is less hydrogen and helium in the cosmic rays than in the solar system, we think because hydrogen and helium are harder to accelerate to high energies than heavier elements. We also see that some light elements (lithium, beryllium, and boron) that are rare in the solar system (and in the rest of the universe) are quite common in cosmic rays. We also see more cosmic ray elements between silicon and iron than in the solar system.. The accepted reason for all the observed cosmic ray lithium, beryllium, and boron is that these are pieces of heavier cosmic ray elements, especially carbon and oxygen, that have had high speed collisions with the very tenuous gas in ...
As of September, 2008, 37 holes (holes 10-46) were drilled at four separate target areas, with the majority coming from the I&L zone. Ucore has received and announced significant uranium and multi-element assay results for the first 16 holes of the season (holes 10-25), and is currently waiting to receive assay results for the remaining holes.. In addition to high grade uranium values, the I&L zone is also enriched in rare earth elements and related metals, including yttrium, zirconium, beryllium, and niobium. Results indicate potentially significant concentrations of highly valuable heavy REEs, many of which are uncommon at most other North American deposits and have valuations ranging from hundreds to over one thousand dollars per pound. Furthermore, surface sampling has identified several zones with even higher REE values outside of the I&L zone and the other main uranium-bearing zones.. Ucore is compiling and assessing the 2008 drill results. The distribution of uranium and rare earth ...
0086] The barrier layer is not particularly limited to a specific one as far as the barrier layer contains a metal or a metal compound. Preferably the metal or the metal compound is capable of forming a thin film (in particular, a transparent thin film). The metal may include, for example, a group 2A element of the Periodic Table (such as beryllium, magnesium, calcium, strontium, or barium); a transition element of the Periodic Table (such as titanium, zirconium, ruthenium, hafnium, tantalum, or copper); a group 2B element of the Periodic Table (such as zinc); a group 3B element of the Periodic Table (such as aluminum, gallium, indium, or thallium); a group 4B element of the Periodic Table (such as silicon, germanium, or tin); and a group 6B element of the Periodic Table (such as selenium or tellurium). Moreover, as the metal compound, there may be mentioned an oxide of the metal, a nitride of the metal, an oxynitride of the metal, a halide of the metal, a carbide of the metal, and others. These ...
According to the Unified Numbering System (UNS): Coppers are copper alloys, containing not less than 99.3% of copper. Wrought coppers are designated with the numbers from C10100 through C157600. High copper alloys are copper alloys, containing more than 96% but less than 99.3% of copper. Wrought High Copper Alloys are designated with the numbers from C16200 through C19600. Alloys from these groups have any major alloying elements but may contain small amounts of beryllium (Be), chromium (Cr), phosphorous (P), silver (Ag), arsenic (As), sulfur (S), lead (Pb), tin (Sn), zirconium (Zr), magnesium (Mg), iron (Fe), cadmium (Cd) and tellurium (Te) as minor alloying additives. Coppers and high copper alloys have very high electric and heat conductivity, very high ductility and relatively low hardness and tensile strength. High copper alloys have better hardness and tensile strength, but lower ductility than coppers. The alloys may be strengthened by cold work (strain hardening). Ductility of the alloys ...

*Three-center two-electron bond

Beryllium[edit]. The first stable subvalent Be complex ever observed contains a three-center two-electron bond π-bond that ...

*Plasma-facing material

Carbon fibre composite (CFC). Beryllium. Tungsten. Molybdenum. Lithium. Multi-layer tiles of several of these materials are ... Beryllium was used to reline JET in 2009 in anticipation of its proposed use in ITER. Tungsten is used for the divertor in JET ...

*History of Formula One regulations

Collantine, Keith (8 February 2007). "Banned! - Beryllium". F1 Fanatic. Retrieved 11 July 2011. "www.itv-f1.com/news_article. ... use of beryllium alloys in chassis or engine construction banned. Larger cockpit entry template and survival cell. Rear wings ...

*Alkaline earth metal

Beryllium is used mostly for military applications, but there are other uses of beryllium, as well. In electronics, beryllium ... The beryllium hydroxide from either method then produces beryllium fluoride and beryllium chloride through a somewhat long ... Beryllium is an exception: It does not react with water or steam, and its halides are covalent. If beryllium did form compounds ... Even the compound beryllium fluoride, which is the most ionic beryllium compound, has a low melting point and a low electrical ...

*List of environmental issues

Beryllium • Bioaccumulation • Biomagnification • Chlorofluorocarbons (CFCs) • Cyanide • DDT • Endocrine disruptors • Explosives ...

*Timeline of chemical element discoveries

Beryllium 1798 N. Vauquelin 1828 F. Wöhler and A. Bussy Vauquelin discovered the oxide in beryl and emerald, and Klaproth ... "04 Beryllium". Elements.vanderkrogt.net. Retrieved 2008-09-12.. *^ "23 Vanadium". Elements.vanderkrogt.net. Retrieved 2008-09- ... "Ueber das Beryllium und Yttrium". Annalen der Physik. 89 (8): 577-582. Bibcode:1828AnP....89..577W. doi:10.1002/andp. ...

*Electrical resistivity and conductivity

Toxicity excludes the choice of beryllium.[53] (Pure beryllium is also brittle.) Thus, aluminium is usually the metal of choice ...

*Brazing

Beryllium. trace additive toxic Traces of bismuth and beryllium together with tin or zinc in aluminium-based braze destabilize ... Beryllium and bismuth at similar levels help disrupt the passivation layer of aluminium oxide and promote wetting. Carbon at ... Traces of bismuth and beryllium together with tin or zinc in aluminium-based braze destabilize oxide film on aluminium, ... Traces of bismuth and beryllium together with tin or zinc in aluminium-based braze destabilize oxide film on aluminium, ...

*Spectral line

beryllium 4 Be boron 5 B carbon 6 C nitrogen 7 N ...

*Standard atomic weight

Beryl-lium4Be​9.0122 Boron5B​10.81 Carbon6C​12.011 Nitro-gen7N​14.007 Oxy-gen8O​15.999 Fluor-ine9F​18.998 Neon10Ne​20.180 ...

*Composition of the human body

Beryllium. 6992360000000000000♠3.6×10−8. 6992450000000000000♠4.5×10−8. No. toxic in higher amounts. 2 ...

*Alkaline earth metal

The beryllium hydroxide from either method then produces beryllium fluoride and beryllium chloride through a somewhat long ... In electronics, beryllium is used as a p-type dopant in some semiconductors,[56] and beryllium oxide is used as a high-strength ... Beryllium-7, beryllium-10, and calcium-41 are trace radioisotopes; calcium-48 and barium-130 have very long half-lives and thus ... Beryllium is an exception: It does not react with water or steam, and its halides are covalent. If beryllium did form compounds ...

*Heat capacity

As noted, heat capacity values far lower than 3 R "per atom" (as is the case with diamond and beryllium) result from "freezing ... Large exceptions at the lower end involve solids composed of relatively low-mass, tightly bonded atoms, such as beryllium at ... such as beryllium (where the value is only of 66% of 3 R), or diamond (where it is only 24% of 3 R). These large departures are ... beryllium metal or diamond). Polyatomic gases store intermediate amounts of energy, giving them a "per-atom" heat capacity that ...

*Standard enthalpy of formation

Beryllium hydroxide Solid Be(OH)2 −902.9999 Beryllium oxide Solid BeO −609.4(25) ...

*Diesel exhaust

... includes ... acetaldehyde; antimony compounds; arsenic; benzene; beryllium compounds; bis(2-ethylhexyl)phthalate ...

*Mineral industry of Mozambique

The mineral industry of Mozambique plays a significant role in the world's production of aluminium, beryllium, and tantalum. In ... 2006, Mozambique's share of the world's tantalum mine output amounted to 6%; beryllium, 5%; and aluminium, 2%. Other ...

*Properties of water

Beryllium hydride. Left (gas phase): BeH2. covalent metal hydride. Right: (BeH2)n (solid phase). polymeric metal hydride. ... Some other reactive metals, such as aluminum and beryllium, are oxidized by water as well, but their oxides adhere to the metal ...

*Lithium hydride

Beryllium hydride. Left (gas phase): BeH2. covalent metal hydride. Right: (BeH2)n (solid phase). polymeric metal hydride. ...

*Amphoterism

... and beryllium) form amphoteric oxides or hydroxides. Amphoterism depends on the oxidation states of the oxide. Al2O3 is an ...

*Electronic waste

Beryllium oxide. Filler in some thermal interface materials such as thermal grease used on heatsinks for CPUs and power ... Electronic scrap components, such as CPUs, contain potentially harmful components such as lead, cadmium, beryllium, or ... Air emissions and discharge into rivers of glass dust, tin, lead, brominated dioxin, beryllium cadmium, and mercury. ... Occupational exposures associated with lung cancer, other common adverse health effects are beryllium sensitization, chronic ...

*Heavy water

Beryllium hydride. Left (gas phase): BeH2. covalent metal hydride. Right: (BeH2)n (solid phase). polymeric metal hydride. ...

*Methylene (compound)

Beryllium hydride. Left (gas phase): BeH2. covalent metal hydride. Right: (BeH2)n (solid phase). polymeric metal hydride. ...

*Kalesay mine

The mine has reserves amounting to 9.24 million tonnes of ore grading 0.13% beryllium. "Kalesay Beryllium Deposit". stansenergy ... The Kalesay mine is one of the largest beryllium mines in Kyrgyzstan. The mine is located in Issyk Kul Province. ...

*Boiling points of the elements (data page)

4 Be beryllium use. 2742 K. 2469 °C. 4476 °F WebEl. 2742 K. 2469 °C. 4476 °F ...

*Aluminium

The only lighter metals are the metals of groups 1 and 2, which apart from beryllium and magnesium are too reactive for ... Puchta, Ralph (2011). "A brighter beryllium". Nature Chemistry. 3 (5): 416. Bibcode:2011NatCh...3..416P. doi:10.1038/nchem.1033 ... this behaviour is similar to that of beryllium (Be2+), an example of a diagonal relationship.[26] However, unlike all other ... structural use (and beryllium is very toxic).[22] Aluminium is not as strong or stiff as steel, but the low density makes up ...

*Carbon dioxide scrubber

Petzow, G. N.; Aldinger, F.; Jönsson, S.; Welge, P.; Van Kampen, V.; Mensing, T.; Brüning, T. (2005). "Beryllium and Beryllium ...
Beryllium enters the air as dust from burning coal and oil.[3] Eventually, the dust settles in the land and water. Beryllium ... In the soil, most beryllium remains bound to the soil.. In Sewage Sludge. Beryllium may also enter the environment if it is in ... Beryllium can be harmful if it is inhaled, depending on how much beryllium one inhales and how long the exposure lasts. "If ... This condition resembles pneumonia and is called acute beryllium disease."[6]. Individuals who are sensitive to beryllium can ...
Beryllium in the Workplace. From Advocacy to Access: Asking Genetic Questions Around National Security Sites. Tennessee Board ... and Kukulka, G. Genetic Testing for Beryllium: Worker Knowledge, Beliefs and Attitudes,Center to Protect Workers Rights, ... Silver, K., Kukulka, G., Gorniewicz, J., and Rayman, K., Genetic susceptibility testing for beryllium: Worker Knowledge, ... genetic susceptibility to chronic beryllium disease, 48(4): 434-443 (April 2006) ...
Chronic beryllium disease may be misdiagnosed as sarcoidosis. Immunologic tests can detect beryllium sensitization and help ... Beryllium produces health effects ranging from sensitization without evidence of disease to clinically apparent pulmonary ... clinicians differentiate between chronic beryllium disease and other interstitial lung diseases. ... What Is Beryllium?. Beryllium is a mineral found in nature. It is extracted from mineral deposits and used for many commercial ...
Beryllium nitrate, also known as beryllium dinitrate, is an ionic beryllium salt of nitric acid with the chemical formula Be( ... Beryllium nitrate is a toxic chemical, like all other beryllium compounds. It is also an irritant in small doses. When burned, ... Beryllium nitrate can be prepared by reacting beryllium hydroxide in nitric acid. s "NIOSH Pocket Guide to Chemical Hazards # ... Walsh, Kenneth (2009). Beryllium chemistry and processing. ASM International. pp. 121-122. ISBN 978-0-87170-721-5. Retrieved 3 ...
Beryllium sulfate may be prepared by treating an aqueous solution of any beryllium salt with sulfuric acid, followed by ... "Beryllium compounds (as Be)". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for ... Beryllium sulfate normally encountered as the tetrahydrate, [Be(H2O)4]SO4 is a white crystalline solid. It was first isolated ... A mixture of beryllium and radium sulfate was used as the neutron source in the discovery of nuclear fission. ...
Overview Beryllium is the lightest member of the alkaline earth [1] metals family. These metals make up Group 2 (IIA) of the ... BERYLLIUM (REVISED) Note: This article, originally published in 1998, was updated in 2006 for the eBook edition. ... Beryllium ores are first converted to beryllium oxide (BeO) or beryllium hydroxide (Be(OH)2). These compounds are then ... beryllium, and bertrandite, Be4(OH)2Si2O7, 15 percent (wt.) beryllium. The world resources of beryllium are estimated at ...
Beryllium is one of the lightest metals, with unique mechanical, physical, and nuclear properties that allow major applications ... Recent chronic beryllium disease in residents surrounding a beryllium facility. Am J Respir Crit Care Med. 2008;177:1012-7. ... Cutaneous effects of beryllium. Chapter 9 pp 113-117. In: Rossman MD, Preuss OP, Powers MB, editors. Beryllium biomedical and ... History of beryllium, Chapter 2 in 58. In: Rossman MD, Preuss OP, Powers MB, editors. Beryllium biomedical and environmental ...
Draft NIOSH Alert, Preventing Chronic Beryllium Disease and Beryllium Sensitization; 02/01/08pdf icon [PDF - 6,146 KB] ... NIOSH has an ongoing program of research on beryllium-related health effects. One of the major goals of this research is to ... NIOSH Alert: Preventing Sensitization and Disease from Beryllium Exposure; 2/1/11pdf icon [PDF - 21,661 KB] ... prevent sensitization and chronic beryllium disease (CBD) by developing a better understanding of the exposure factors and work ...
... of all people occupationally-exposed to beryllium in air become sensitive to beryllium and may develop chronic beryllium ... Beryllium has been found in at least 535 of the 1,613 National Priorities List sites identified by the Environmental Protection ... Lung damage has been observed in people exposed to high levels of beryllium in the air. About 1-15% ... People working or living near beryllium industries have the greatest potential for exposure to beryllium. ...
beryllium (Be): Be chemical element, the lightest member of the alkaline-earth metals of Group 2 (IIa) of the periodic table, ... along with basic beryllium acetate, Be4O(C2H3O2)6, are used as a starting material for synthesis of beryllium salts. Beryllium ... The extraction of beryllium is complicated by the fact that beryllium is a minor constituent in most ores (5 percent by mass ... beryllium - Student Encyclopedia (Ages 11 and up). The chemical element beryllium is the lightest of the alkaline earth metals ...
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database ...
Other names: Beryllium sulfide * Permanent link for this species. Use this link for bookmarking this species for future ...
Beryllium nitride, also called triberyllium nitride, is the chemical compound with the molecular formula Be3N2 and a molar mass ... Beryllium nitride is obtained from the reaction of beryllium metal with nitrogen at temperatures between 700 and 1400 degrees ... Beryllium nitride is used to produce the isotope carbon-14 and in the manufacturing process of refractory ceramics and nuclear ... Beryllium nitride, also called triberyllium nitride, is the chemical compound with the molecular formula Be3N2 and a molar mass ...
Beryllium is safe in solid form, but when it is manufactured or machined, a toxic dust is created that can cause an often-fatal ... The order to GAO to study the hazards of beryllium, a metal used by the Department of Defense and the Department of Energy ... The Blade series showed that over the past five decades, the U.S. government and the beryllium industry risked the lives of ... "Because of the concerns that have been raised, we request that GAO provide information on the evolution of beryllium as a ...
The element beryllium (Be, atomic number 4) is a Group 2 alkaline earth \[…\] ... aerospace and atomic energy workers by exposing them to beryllium. President Bill Clinton asks Congress to enact legislation to ... The element beryllium (Be, atomic number 4) is a Group 2 alkaline earth metal, the lightest of the family that includes ... July 15, 1999: Hey, Sorry About the Beryllium Poisoning. __. 1999: __After five decades of denial, the U.S. government owns up ...
Wednesday it is notifying nearly 2,000 current and former employees and visitors that they may have been exposed to beryllium ... Beryllium is purified for use in nuclear weapons; also used in bike frames, golf clubs. * Inhalation of powdered beryllium can ... Inhalation of powdered beryllium can result in chronic beryllium disease, which can impair lung function in people who are ... Beryllium is hazardous only when its fine, particulate form is inhaled, he said. It was found on surfaces, not in the air, he ...
Beryllium is sometimes used in neutron sources, in which the beryllium is mixed with an alpha emitter such as 210Po, 226Ra, 239 ... Commentary: Beryllium exposure and Chronic Beryllium Disease. Lancet 2004, 415-16.. *Kelleher, P.C., J.W. Martyny, M.M. Mroz, L ... Beryllium-copper alloys (containing about two percent beryllium) are strong, hard, wear-resistant, and good conductors of heat ... Beryllium metal did not become readily available until 1957. Currently, the chief method of production is by reducing beryllium ...
... Information. Hanford Site beryllium-related forms list, Beryllium Training Programs, and Beryllium Warning ... Beryllium Facilities & Areas. Lists of current and past Beryllium Controlled Facilities and their managers on the Hanford Site. ... BERYLLIUM PROGRAM AT HANFORD. Beryllium is a lightweight, durable metal that has wide spread industrial applications. The use ... Beryllium Program Points of Contact. Key contacts among the Contractors, DOE, Organized Labor, and the Beryllium Awareness ...
Beryllium, Urine. 5595-4. 808542. Beryllium, Urine. ng/ml. 5595-4. 808540. Beryllium, Urine. 5595-4. 808545. Beryllium, Urine. ...
Occupational Exposure to Beryllium and Beryllium Compounds. The proposed rule was published in the Federal Register on August ... regulating occupational exposure to beryllium and beryllium compounds. OSHA accepted comments concerning the proposed rule ... OSHA-H005C-2006-0870-0353] RIN 1218-AB76 Occupational Exposure to Beryllium AGENCY: Occupational Safety and Health ... a proposed rule to amend its existing exposure limits for occupational exposure in general industry to beryllium and beryllium ...
Beryllium oxide definition is - a white amorphous compound BeO having high thermal conductivity and high electrical resistance ... Resources for beryllium oxide. Time Traveler: Explore other words from the year beryllium oxide first appeared Time Traveler! ... Comments on beryllium oxide. What made you want to look up beryllium oxide? Please tell us where you read or heard it ( ... Post the Definition of beryllium oxide to Facebook Share the Definition of beryllium oxide on Twitter ...
Define beryllium oxide: A dielectric ceramic material used in laser capillary tubes because of its high electrical resistivity ... beryllium oxide. A dielectric ceramic material used in laser capillary tubes because of its high electrical resistivity and ...
Periodic Table of the Elements: BerylliumAtomic Number:4Atomic Symbol:Be BerylliumAtomic Weight:9.01218ElectronConfiguration:2 ·
  • In the Targeted National Sewage Sludge Survey , a 2009 test of 84 samples of sewage sludge from around the U.S., the EPA found beryllium in 83 samples (99%) in concentrations ranging from 0.04 to 2.3 parts per million. (sourcewatch.org)
  • Beryllium is used in nuclear weapons and reactors, aircraft and space vehicle structures, instruments, x-ray machines, and mirrors. (sourcewatch.org)
  • Some people who are sensitized to beryllium may not have any symptoms. (sourcewatch.org)
  • If beryllium air levels are high enough (greater than 1000 µg/m3), an acute condition can result. (sourcewatch.org)
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