Helium: Helium. A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a colorless, odorless, tasteless gas that is not combustible and does not support combustion. It was first detected in the sun and is now obtained from natural gas. Medically it is used as a diluent for other gases, being especially useful with oxygen in the treatment of certain cases of respiratory obstruction, and as a vehicle for general anesthetics. (Dorland, 27th ed)Gases: The vapor state of matter; nonelastic fluids in which the molecules are in free movement and their mean positions far apart. Gases tend to expand indefinitely, to diffuse and mix readily with other gases, to have definite relations of volume, temperature, and pressure, and to condense or liquefy at low temperatures or under sufficient pressure. (Grant & Hackh's Chemical Dictionary, 5th ed)Argon: Argon. A noble gas with the atomic symbol Ar, atomic number 18, and atomic weight 39.948. It is used in fluorescent tubes and wherever an inert atmosphere is desired and nitrogen cannot be used.Noble Gases: Elements that constitute group 18 (formerly the zero group) of the periodic table. They are gases that generally do not react chemically.Atmospheric Pressure: The pressure at any point in an atmosphere due solely to the weight of the atmospheric gases above the point concerned.High Pressure Neurological Syndrome: A syndrome related to increased atmospheric pressure and characterized by tremors, nausea, dizziness, decreased motor and mental performance, and SEIZURES. This condition may occur in those who dive deeply (c. 1000 ft) usually while breathing a mixture of oxygen and helium. The condition is associated with a neuroexcitatory effect of helium.Plasma Gases: Ionized gases, consisting of free electrons and ionized atoms or molecules which collectively behave differently than gas, solid, or liquid. Plasma gases are used in biomedical fields in surface modification; biological decontamination; dentistry (e.g., PLASMA ARC DENTAL CURING LIGHTS); and in other treatments (e.g., ARGON PLASMA COAGULATION).Inert Gas Narcosis: Progressive mental disturbances and unconsciousness due to breathing mixtures of oxygen and inert gases (argon, helium, xenon, krypton, and atmospheric nitrogen) at high pressure.Air Pressure: The force per unit area that the air exerts on any surface in contact with it. Primarily used for articles pertaining to air pressure within a closed environment.Krypton: A noble gas that is found in the atmosphere. It has the atomic symbol Kr, atomic number 36, atomic weight 83.80, and has been used in electric bulbs.Lung Volume Measurements: Measurement of the amount of air that the lungs may contain at various points in the respiratory cycle.Pulmonary Gas Exchange: The exchange of OXYGEN and CARBON DIOXIDE between alveolar air and pulmonary capillary blood that occurs across the BLOOD-AIR BARRIER.Polyvinyl Chloride: A polyvinyl resin used extensively in the manufacture of plastics, including medical devices, tubing, and other packaging. It is also used as a rubber substitute.Oxygen: An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.Pneumoperitoneum, Artificial: Deliberate introduction of air into the peritoneal cavity.Food Packaging: Containers, packaging, and packaging materials for processed and raw foods and beverages. It includes packaging intended to be used for storage and also used for preparation of foods such as microwave food containers versus COOKING AND EATING UTENSILS. Packaging materials may be intended for food contact or designated non-contact, for example, shipping containers. FOOD LABELING is also available.Lead: A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.19, symbol Pb. (Dorland, 28th)Metal Ceramic Alloys: The fusion of ceramics (porcelain) to an alloy of two or more metals for use in restorative and prosthodontic dentistry. Examples of metal alloys employed include cobalt-chromium, gold-palladium, gold-platinum-palladium, and nickel-based alloys.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Electrodes: Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum.Chromatography, Gel: Chromatography on non-ionic gels without regard to the mechanism of solute discrimination.Molecular Weight: The sum of the weight of all the atoms in a molecule.Arylsulfonates: Organic sulfonic acid esters or salts which contain an aromatic hydrocarbon radical.Poisons: Substances which, when ingested, inhaled, or absorbed, or when applied to, injected into, or developed within the body in relatively small amounts may, by their chemical action, cause damage to structure or disturbance of function. (From Dorland, 27th ed)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)Fossil Fuels: Any combustible hydrocarbon deposit formed from the remains of prehistoric organisms. Examples are petroleum, coal, and natural gas.Fuel Oils: Complex petroleum hydrocarbons consisting mainly of residues from crude oil distillation. These liquid products include heating oils, stove oils, and furnace oils and are burned to generate energy.Mechanics: The branch of physics which deals with the motions of material bodies, including kinematics, dynamics, and statics. When the laws of mechanics are applied to living structures, as to the locomotor system, it is referred to as BIOMECHANICAL PHENOMENA. (From Dorland, 28th ed)Organosilicon Compounds: Organic compounds that contain silicon as an integral part of the molecule.Carbon Compounds, Inorganic: Inorganic compounds that contain carbon as an integral part of the molecule but are not derived from hydrocarbons.Silicon Compounds: Inorganic compounds that contain silicon as an integral part of the molecule.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].Semiconductors: Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices.Siloxanes: Silicon polymers that contain alternate silicon and oxygen atoms in linear or cyclic molecular structures.Alkenes: Unsaturated hydrocarbons of the type Cn-H2n, indicated by the suffix -ene. (Grant & Hackh's Chemical Dictionary, 5th ed, p408)
  • It is also the most common element in the Earth's crust (around 47%) and the third most common element in the Universe (but far less than hydrogen and helium, the two most common). (smore.com)
  • 12. It is the third most abundant element in the universe after hydrogen and helium. (smore.com)
  • Super-novas release massive amounts of heavy elements into the surrounding space, some of which eventually are attracted into the gravitational field of new stars forming from swirling clouds of hydrogen and helium left over from the Big Bang. (medical-library.net)
  • The acute poisonings with 1,2-dichloroethane (DCE) is still the urgent problem of the modern clinical toxicology, despite the fact that in the last years the number of cases of intoxication had considerably decreased. (medline.ru)
  • 128 cases of acute heavy degree peroral poisonings with DCE have been analyzed. (medline.ru)
  • patients suffering from I - II stage alcoholism, but whose DCE poisoning was not associated with acute alcoholism or intoxication, (concentration of ethanol in a blood less than 0,5 g/l) - Group II - 38. (medline.ru)
  • Cases of acute poisoning, life-threatening, were not recorded, so as to deal with such conditions in the environment impossible. (medicalj-center.info)
  • For clinical purposes, gases and vapors are classified into broad groups which produce acute or chronic effects. (cniguard.com)
  • Death as a result of acute poisoning can happen from anything. (intoxication-stop.com)
  • When you run your car on gasoline, or burn wood in your fireplace, or heat your house or cook your food with natural gas, you burn something. (madsci.org)
  • Determination of thiol sulphur (mercaptan sulphur) in light distillates, such as gasoline and naphtha fractions, and middle distillate fuels, such as kerosine and gas oil, in the range of 0.0003 to 0.0100% (m/m), (3 to 100 mg/kg). (ineos.com)
  • Lead cannot be legally added to paint or gasoline, both of which are poison already and no one drinks gas or paint, BUT dumping fluoride into the baby's water is supposed to be a good thing. (drbillyhealth.com)
  • Topics of these workshops include barbiturates, prescription and non-prescription drugs, gases with seemingly innocuous names like "Max Dog Nitrogen" and "Party Time Helium," and poisons, including cyanide and detergents. (aleteia.org)
  • There is compelling geochemical evidence for primordial helium trapped in Earth's lower mantle, but the origin and nature of the helium source remain elusive due to scarce knowledge on viable helium-b. (bioportfolio.com)
  • Many of these gases cycle nutrients and energy through Earth's biosphere , the outer layer of Earth which contains all life, from birds, to fish to land-dwellers like us, making these nutrients and energy available to us. (blogspot.com)
  • The poisonings with DCE quite often developed in the presence of alcohol intoxication. (medline.ru)
  • All the patients with intoxication by DCE combined with other exogenous poisons (except ethanol), mechanical and thermal traumas, cases of intoxications by DCE in patients with diabetes, drug abuse, III stage chronic alcoholism, and long-term administration of some medications (psychopharmacological drugs, cimetidinum etc.) were eliminated from the study. (medline.ru)
  • In the Group III there were 48 patients, in whom the poisoning with DCE was not combined with alcoholic intoxication and/or with chronic alcoholism. (medline.ru)
  • Vivian, Volcanoes are explosive because of gasses dissolved in molten rock under enormous pressure - released as it nears the surface - like fizzy drinks. (sciencechatforum.com)
  • The present invention relates to a method for liquefying hydrogen, the method comprises the steps of: cooling a feed gas stream comprising hydrogen with a pressure of at least 15 bar(a) to a temperature below the critical temperature of hydrogen in a first cooling step yielding a liquid product stream. (sumobrain.com)
  • Auto-ignition is possible when certain gases such as phosphine with a low auto-ignition temperature (212°F) come into contact with a hot steam pipe or electric light bulb. (cniguard.com)
  • Brushable to -50°F (-46°C). Temperature range usage: -50°F (-46°C) to 400°F (+204°C). Suitable for Liquid up to 10,000 PSI and 3,000 PSI for Gases. (tchristy.com)
  • Helium brings its own problems, not least that it is a very good heat conductor and can cause the diver to lose body temperature at a very rapid rate. (bbc.co.uk)
  • Section 13.1) It also depends on temperature and, at least for gases, on pressure. (schoolbag.info)
  • A gas bubble gets into the bloodstream, perhaps through some kind of tear in a blood vessel, and can block blood flow to the brain, causing a stroke. (lubbockonline.com)
  • For example, compressed gas cylinders that will not hold a label will have tags or decals. (eregulations.com)
  • Even when staying within the parameters, or perhaps using the specialized gases, issues can still occur and cause injury. (medscape.com)
  • Let's find out in this article, under what kind of poisoning may occur clinical death, what kind of human resuscitation techniques exist, and how to properly perform artificial respiration and indirect heart massage. (intoxication-stop.com)
  • Conventional ion trapping methods occur by injecting helium gas continuous. (bioportfolio.com)
  • Helium is not as dangerous as alcohol and other drugs, which teens are much more likely to use than helium. (nnepc.org)
  • According to the CDC, alcohol remains the most commonly abused drug among youth in the U.S. Teens who are drinking or taking drugs are more likely to make poor decisions and engage in risky behaviors like breathing in gas from a high-pressure tank. (nnepc.org)
  • Remember, call the poison center at 1-800-222-1222 if someone who has used helium or alcohol is not feeling well or if you have questions about helium, alcohol or other possible poisons. (nnepc.org)
  • A moderator rod provided with a burnable poison and disposed in a fuel assembly of a reactor core comprises an outer tube, an inner tube disposed in the outer tube, the outer and inner tubes constituting a double tube structure between which an annular section is formed, and a burnable poison charged in said annular section. (patentgenius.com)
  • A fuel assembly of a nuclear reactor comprises an upper tie plate, a lower tie plate, a number of fuel rods supported at their upper ends by the upper tie plate and at their lower ends by the lower tie plate and filled up in their inner spaces with a plurality of fuel pellets, at least one of moderator rods containing burnable poison in various states and a channel box. (patentgenius.com)
  • An area of a metal, ceramics or thermet containing the burnable poison is formed at a portion except for portions having axial length corresponding to 1/24 to 1/12 length of the fuel effective length from the upper and lower ends thereof. (patentgenius.com)
  • According to our data, which agree with some literature data, the percentage of mild, intermediate and heavy degree poisonings are 16, 10 and 74% respectively. (medline.ru)
  • To a certain degree this was counterbalanced by a corresponding rise in the percentage of CO2 in the system since this gas is a metabolic waste product as O2 is burned. (undercurrent.org)
  • CO poisoningis the leading cause of poisoning deaths in the U.S.(about 8600 deathsper year) and is easily missed unless health care providers are especiallyvigilant. (scuba-doc.com)
  • Helium is nontoxic, does not cause a high and rarely causes injuries or deaths. (nnepc.org)
  • The diagnosis of poisoning was done based on the history findings, clinical course, and the laboratory confirmation of the remains of poison. (medline.ru)
  • Medical gases are those which are manufactured, packaged, and intended for administration to a patient in anesthesia, therapy, or diagnosis. (kppub.com)
  • and a burnable poison charged in said annular section, wherein a containing amount of the burnable poison per unit area of the annular section is distributed in at least one of peripheral direction and axial direction of the double tube structure of the inner and outer tube and said burnable poisonis distributed in an interval smaller than a thermal neutron diffusion length during an operation period of a reactor. (patentgenius.com)
  • and a second burnable poison charged in at least one of said outer and inner tubes, said second burnable poison having a neutron absorption cross section different from that of the first burnable poison, wherein said second burnable poison is contained in both the outer and inner tubes and has a neutron absorption cross section larger than that of the first burnable poison contained in the annular section. (patentgenius.com)
  • 6. A moderator rod according to claim 4, wherein the burnable poison having a large neutron cross section is gadolinium and the burnable poison having a small neutron cross section is boron. (patentgenius.com)