wiktionary singletSinglet may refer to singlet state , in theoretical physics, a quantum state with zero spin in spectroscopy, an entity appearing as a single peak see NMR spectroscopy in optics, a single lens element, the building blocks of lens systems see lens optics a one piece collarless garment, also known as a sleeveless shirt or vest wrestling singlet , a one piece garment specific to wrestling BID 60 , a British encryption machine and also Singletoxygen , the common name used for the diamagnetic form of molecular oxygen disambig ... more details
Roman wrestling Greco Roman wrestlers bring a red and a blue singlet or reversible singlet and are told ... declined in the last two decades. Other clothing The singlet didn t become common in college wrestling ... 22 ref A new style of singlet, known as a double or doublet, has recently emerged in college wrestling that covers more of the upper body. Made of the same Lycra material, this singlet has more of a t shirt covering than the traditional thin strap singlet more commonly worn. This type of singlet is usually worn with accompanying tight fitting shorts. This style of singlet is currently only allowed on the college level, although there is report that some high school wrestlers use this singlet style ... to wear a t shirt under their singlet, most commonly for sanitary reasons involving excessive acne on the chest or back. Singlet cuts Image Wrestling states005 edit.jpg thumb right 150px The wrestler here is wearing a high cut, white singlet. There are three different traditional cuts to wrestling ... beneath the arms. The low cut singlet is a revealing singlet, that allows greater range of mobility ... or World Championships. A high cut or Fila cut singlet is required for this level. Generally, low cut ... for off season wrestling in the near future. Wearing Underneath the singlet, wrestlers traditionally ... . ref http wrestling.sport4allsite.com wrestling singlet ref ref http www.misterpoll.com polls 126914 ... more details
the triplet state triplet and the trivial representation , the singlet. The singlet state formed ... right math References reflist See also Doublet state Triplet state Spin multiplicity DEFAULTSORT Singlet ... more details
literature of Oxygen analyzers triplet publisher Servomex accessdate 2007 12 15 ref Singletoxygen ... oxygen per se. In nature, singletoxygen is commonly formed from water during photosynthesis ... Singletoxygen production in photosynthesis doi 10.1093 jxb erh237 pmid 15310815 issue 411 ref It is also ... in animals play a major role in absorbing energy from singletoxygen and converting it to the unexcited ground state before it can cause harm to tissues. ref cite journal title Singletoxygen quenching ... Allotropes of oxygen other uses Oxygen disambiguation pp move indef Infobox oxygenOxygen IPAc en icon ... at the time of naming, it was mistakenly thought that all acids required oxygen in their composition ... O 2 . Oxygen is a member of the chalcogen Group periodic table group on the periodic table and is a highly ... notably oxide s with almost all other elements. Oxygen is a strong oxidizing agent and has the second ... cite web url http www.webelements.com oxygen electronegativity.html title WebElements Periodic Table of the Elements & 124 Oxygen & 124 Electronegativity publisher Webelements.com date accessdate 2011 11 07 ref By mass, oxygen is the Abundance of the chemical elements third most abundant element ... Earth s crust Earth s crust , making up almost half of the crust s mass. ref name lanl Free oxygen ... organisms, which use the energy of sunlight to produce elemental oxygen from water. Elemental chem ..., roughly 2.5 billion years ago. ref cite press release title NASA Research Indicates Oxygen on Earth 2.5 Billion Years ago url http www.nasa.gov home hqnews 2007 sep HQ 07215 Timeline of Oxygen on Earth.html publisher NASA date 2007 09 27 accessdate 2008 03 13 ref Diatomic oxygen gas constitutes ... in water, oxygen comprises most of the mass of living organisms for example, about two thirds ... s, carbohydrate s, and fat s, contain oxygen, as do the major inorganic compound s that comprise animal shells, teeth, and bone. Elemental oxygen is produced by cyanobacteria , algae and plants ... more details
of triplet oxygen with a closed shell a molecule in a singlet state . The extra energy ... or spark. Singletoxygen , where the electron spins are opposed in a higher energy state, is many times more reactive than triplet oxygen, and extremely hazardous to organic matter. It is used for the extermination ...No footnotes date April 2011 Sections date April 2011 Chembox PIN Triplet oxygen Citation needed date July 2011 SystematicName Dioxidanediyl ref name Triplet Dioxygen CHEBI 27140 Cite web url http www.ebi.ac.uk chebi searchId.do jsessionid 365B584AEF7AC9DBA25DFB67350F6CAF?chebiId CHEBI 3A27140 title Triplet Dioxygen CHEBI 27140 work Chemical Entities of Biological Interest ChEBI location UK publisher ... 231 956 9 UNNumber 1072 KEGG D00003 KEGG Ref keggcite correct kegg MeSHName Oxygen ChEBI 27140 ... S17 NFPA F 0 NFPA H 0 NFPA R 0 NFPA O Ox Triplet oxygen or sup 3 sup O sub 2 sub is the ground state of the oxygen molecule. The electron configuration of the molecule has two unpaired electrons ... oxygen middle in the ground state, the electrons in the sup sup orbitals have their spins parallel ... independent spin states in total. Exchange interaction splits these into a diradical singlet state total ... an electron spin of S 1. Excitation to the S 0 state results in much more reactive, metastable singletoxygen . Because the molecule in its ground state has a non zero spin magnetic moment , oxygen ... represent the diradical nature of molecular oxygen molecular orbital theory must be used to adequately account for the unpaired electrons. Triplet oxygen is better described by a bond order ... for easier reasoning of the bond length. The unusual electron configuration prevents molecular oxygen from reacting directly with many other molecules, which are often in the diradical singlet state. Triplet oxygen will, however, readily react with molecules in a doublet state, such as radicals, to form ... webbook 16 diradical diradical.html Oxygenallotropes Category Oxygen es Ox geno triplete nl Tripletzuurstof ... more details
oxygen is pale blue in colour, and is quite markedly paramagnetic&mdash liquid oxygen contained in a flask suspended by a string is attracted to a magnet. Singletoxygen main SingletoxygenSingletoxygen is the common name used for the two metastable state s of molecular oxygen O sub 2 sub with higher energy than the ground state triplet oxygen . Because of the differences in their electron shells, singletoxygen has different chemical properties than triplet oxygen, including Diels Alder reaction ...TOC right There are several known allotropes of oxygen . The most familiar is molecular oxygen O sub ... dioxygen or triplet oxygen . Another is the highly reactive ozone O sub 3 sub . Others include Atomic oxygen O sub 1 sub , a Radical chemistry free radical Singletoxygen O sub 2 sub , either of two metastable state s of molecular oxygen Tetraoxygen O sub 4 sub , another metastable form Solid oxygen , existing in six variously colored phases, of which one is chem O 8 and another one metallic Atomic oxygen Expand section date February 2011 Atomic oxygen is very reactive on Earth s surface ... results in a low Earth orbit atmosphere of about 96 atomic oxygen. ref name nasas11 http www.nasa.gov ... from the NASA website ref Dioxygen main Oxygen The common allotropy allotrope of elemental oxygen on Earth, O sub 2 sub , is known as dioxygen. Elemental oxygen is most commonly encountered in this form ... 12 16 ref Oxygen itself is a colourless gas with a boiling point of 183 C. ref name ausetute It can ... of hydrogen peroxide with hypochlorite Ozone main Ozone Triatomic oxygen Ozone, O sub 3 sub , is a very reactive allotrope of oxygen that is destructive to materials like rubber and fabric ... sub 2 sub with atomic oxygen produced by splitting of O sub 2 sub by UV radiation in the upper atmosphere ... O sub 3 sub have a deeper blue color than ordinary oxygen and they are unstable and explosive. ref ... of solid oxygen later identified as chem O 8 . Cacace s team think that chem O 4 probably ... more details
saved book title Oxygen subtitle An overview cover image Gase in Entladungsroehren.jpg cover color Oxygen An overview Overview Oxygen Dioxygen in biological reactions Oxygen toxicity Isotopes Isotopes of oxygenOxygen isotope ratio cycle Compounds Compounds of oxygen Allotropes Allotropes of oxygen Miscellany Geological history of oxygen Great Oxygenation Event liquid oxygenOxygen therapy Oxygen evolution Category Wikipedia books on chemical elements Category Oxygen Wikipedia books on elements ... more details
wiktionary oxygenOxygen is a chemical element. O sub 2 sub Oxygen O sub 3 sub Ozone Oxygen may also refer to In computing Oxygen XML Editor , stylized oXygen , an XML editor Oxygen Games , videogames studio Oxygen Project , an artwork set for KDE 4 In music Oxygen Wild Orchid album Oxygen Wild Orchid album , 1998 Oxygen Avalon album Oxygen Avalon album , 2001 Oxygen Music Works , a record label Oxygen Marie Serneholt song Oxygen Marie Serneholt song Oxygen Hadouken song Oxygen Hadouken song Oxygen , a song by Bryan Adams from 11 Bryan Adams album 11 Oxygen , a song by Colbie Caillat from Coco album Coco Oxygen , a song by Feeder from Echo Park album Echo Park Oxygen , a song by Jesse McCartney from Departure Jesse McCartney album Departure Oxygen , a song by JJ72 from JJ72 album JJ72 Oxygen , a song by New Found Glory from Coming Home New Found Glory album Coming Home Oxygen , a song by David L Cook from his album OxygenOxygen , a song by Soul Asylum from The Silver Lining Soul Asylum album The Silver Lining Oxygen , a song by the Spice Girls from Forever Spice Girls album Forever Oxygen , a song by Willy Mason from Where the Humans Eat Oxygen , a song by Zion I from Break a Dawn Other Oxygen therapy , respiratory therapy focusing on the concentration or regulation of oxygen, and its method of delivery Oxygen TV channel , an American women s television network Oxygen film Oxygen film , a 1999 film starring Maura Tierney and Adrien Brody Oxygen novel Oxygen novel , a novel by John B. Olson and Randall S. Ingermanson Oxygen Miller novel Oxygen Miller novel , a novel by Andrew Miller Oxygen , a play by Carl Djerassi and Roald Hoffmann Oxygen SpA , an Italian company that makes an electric scooter called Cargoscooter Oxygen , a Philippine clothing brand See also Oxegen , a music festival at Punchestown Racecourse, Ireland Oxyg ne , an album by Jean Michel Jarre disambig de Oxygen es Ox geno desambiguaci n fr Oxygen homonymie gl Os xeno it Oxygen ko nl Zuurstof ja ... more details
image Caleb David.jpg thumb 300px An oxygen tent consists of a canopy placed over the head and shoulders or over the entire body of a patient to provide oxygen at a higher level than normal. Oxygen tents are also used by athletes see altitude tent s. See also Oxygen therapy Oxygen mask External links http www.discoveriesinmedicine.com Ni Ra Oxygen Tent.html Medical Discoveries Oxygen tent medical equipment stub Category Oxygen Category Respiratory therapy sr ... more details
Oxygen free may refer to the absence of oxygen in an environment or in a material. Environmental conditions Anoxia disambiguation Anoxic , an environment with low, or near zero, oxygen content Anaerobic disambiguation Anaerobic , a technical word which literally means without air where air is generally used to mean oxygen , as opposed to Aerobic disambiguation aerobic Aerobic disambiguation Aerobic , anthonym of anaerobic. Oxygen free materials Oxygen free copper , pure copper without oxygen in its crystal lattice OFHC , oxygen free high thermal conductivity copper CuOFP , oxygen free pure copper containing phosphorus . Disambig ... more details
Oxygen regulation can refer to The physiological regulation of oxygen in plants and animals. See Control of respiration . The dangerous sexual practice of erotic asphyxiation disambig ... more details
Oxygen saturation or dissolved oxygen DO is a relative measure of the amount of oxygen that is Dissolution chemistry dissolve d or carried in a given medium. It can be measured with a dissolved oxygen probe such as an oxygen sensor or an optode in liquid media, usually water. It has particular significance in Oxygenation medical medicine and Oxygenation environmental environmental science . Oxygen saturation in medicine Main Oxygenation medical In medicine , oxygen saturation refers to oxygenation , or when oxygen molecules chem O 2 enter the Tissue biology tissues of the body. In this case blood is oxygenated in the lung s, where oxygen molecules travel from the air and into the blood. Oxygen saturation, or O2 sats measure the percentage of hemoglobin binding sites in the bloodstream occupied by oxygen. Fish, invertebrates, plants, and aerobic bacteria all require oxygen for respiration. Blood is also vital to the body system. The optimal levels in an estuary for Dissolved Oxygen DO is higher than 6 ppm. Environmental oxygen saturation Main Oxygenation environmental Oxygen saturation in the environment generally refers to the amount of oxygen dissolved in the soil or bodies of water. Environmental oxygenation can be important to the sustainability of a particular ecosystem . Insufficient oxygen hypoxia environmental environmental hypoxia may occur in bodies of water such as pond s and river s, tending to suppress the presence of aerobic organism s such as fish . Deoxygenation increases the relative population of anaerobic organism s such as plants and some bacteria , resulting in fish kill s and other adverse events. The net effect is to alter the balance of nature by increasing the concentration of anaerobic over aerobic species . Respiratory physiology Category Aquatic ecology Category Blood Category Water quality indicators Category Oxygen ar da Iltm tning de Sauerstoffs ttigung ko id Oksigen terlarut it Ossigeno disciolto ja no Oksygenmetning ... more details
File Home oxygen concentrator.jpg thumb right A home oxygen concentrator in situ in an emphysema patient s house. The model shown is the DeVILBISS LT 4000. File Invacare Perfecto 2 Oxygen Concentrator.JPG thumb An Invacare Perfecto 2 oxygen concentrator An oxygen concentrator is a machine device providing oxygen therapy to a patient at minimally to substantially higher concentrations than available ... of compressed oxygen . Common models retail at around 800. Leasing arrangements may be available through various medical supply companies and or insurance agencies. Oxygen concentrators are also used to provide an economical source of oxygen in industrial processes. How oxygen contentrators work An oxygen ... applies to stationary oxygen concentrators and not to the newer portable devices. The older oxygen ... of oxygen at a flow rate of about five liter s or less per minute at oxygen concentrations selectable ... about 1999, oxygen concentrators providing up to 10 liters per minute have been available for patients requiring higher flows of oxygen. These devices come in sizes that are not much larger or heavier than the devices that yield five liters per minute. Portable oxygen concentrators Since the year 2000, a number of companies have produced portable oxygen concentrators. Typically, these devices produce less than one liter per minute of oxygen, and they use some version of pulse flow or demand flow to deliver oxygen only when the patient is inhaling. However, there are a few portable oxygen concentrators that produce three liters per minute of oxygen continuously. Also, they can provide pulses of oxygen either to provide higher intermittant flows or to reduce the power consumption. These portable concentrators typically plug into an electrical outlet like the larger, heavier stationary oxygen ... accessdate 2010 04 30 ref Portable oxygen concentrators usually can also be plugged into the direct ... FAA of the United States has approved the use of portable oxygen concentrators on commercial airlines ... more details
Image N12453669 32127896 9556.jpg right thumb A plastic oxygen mask on an Emergency department ER patient. An oxygen mask provides a method to transfer breathing oxygen gas from a storage tank to the lungs . Oxygen masks may cover the nose and mouth oral nasal mask or the entire face full face mask . They may be made of plastic , silicone , or rubber . Note In certain circumstances, oxygen may be delivered ... . Medical plastic oxygen masks PILOTS masks are used primarily by HUNTER care providers for oxygen ... can determine accuracy of oxygen delivered with many various medical situations requiring treatment with Oxygen. Oxygen is naturally occurring in room air at 21 and higher percentages are often essential in medical treatment. Oxygen in these higher percentages is classified as a drug with too much oxygen being potentially harmful to a patients health resulting in oxygen dependence, over time, and in extreme circumstances patient blindness. For these reasons oxygen therapy is closely monitored ... of claustrophobia experienced by some patients when wearing an oxygen mask. The vast majority of patients having an operation will at some stage wear an oxygen mask, they may alternatively wear nasal cannula but oxygen delivered in this way is less accurate and restricted in concentration. Silicone and rubber masks Silicone and rubber oxygen masks are heavier than plastic masks. They are designed ... medicine hyperbaric chamber and other patients that require administration of pure oxygen, such as carbon ... Stephenson RN, Mackenzie I, Watt SJ, Ross JA title Measurement of oxygen concentration in delivery systems used for hyperbaric oxygen therapy journal Undersea Hyperb Med volume 23 issue 3 pages ..., so that rebreathing of exhaled gas is minimised. Hoses and tubing and oxygen regulators Hoses or tubing connect an oxygen mask to the oxygen supply. Hose is larger in diameter than tubing and can allow greater oxygen flow. When hose is used it may have a ribbed or corrugated design to allow ... more details
Unreferenced date February 2007 Oxygen balance OB , or OB is an expression that is used to indicate the degree to which an explosive can be oxidized. If an explosive molecule contains just enough oxygen ... sulfur , and all metal oxides from metals with no excess, the molecule is said to have a zero oxygen balance . The molecule is said to have a positive oxygen balance if it contains more oxygen than is needed and a negative oxygen balance if it contains less oxygen than is needed the combustion will then be incomplete ..., strength explosive strength , and brisance of an explosive are all somewhat dependent upon oxygen balance and tend to approach their maximums as oxygen balance approaches zero. The oxygen balance is calculated from the empirical formula of a compound in percentage of oxygen required for complete ... for calculating oxygen balance in terms of 100 grams of the explosive material is to determine the number of Mole unit mole s of oxygen that are excess or deficient for 100 grams of a compound. math ... of atoms of hydrogen, Z number of atoms of oxygen, and M number of atoms of metal metallic oxide ... 3 sub , Molecular weight 227.1 X 7 number of carbon atoms Y 5 number of hydrogen atoms Z 6 number of oxygen ... relationship such as oxygen balance cannot be depended upon to yield universally consistent results. When using oxygen balance to predict properties of one explosive relative to another, it is to be expected that one with an oxygen balance closer to zero will be the more brisant, powerful, and sensitive ... predictions. One area in which oxygen balance can be applied is in the processing of mixtures of explosives ... TNT . Ammonium nitrate has an oxygen balance of 20 and TNT has an oxygen balance of &minus 74 , so it would appear that the mixture yielding an oxygen balance of zero would also result in the best ... an oxygen balance of 1 , the best properties of all mixtures, and an increase in strength of 30 over TNT. Examples of materials with negative oxygen balance are eg. trinitrotoluene 74 , aluminium ... more details
Image Atemluftflasche feuerwehr.jpg thumb Oxygen tank An oxygen tank is a storage vessel for oxygen , which is either held under pressure in gas cylinder s or as liquid oxygen in a cryogenic storage tank. Oxygen tanks are used to store gas for industrial processes including the manufacture of steel and monel ... aircraft oxygen first aid kits gas blending for creating diving breathing mixes such as nitrox ... decompression stop decompression in technical diving some types of diving rebreather oxygen rebreathers and fully closed circuit rebreathers Breathing oxygen is delivered from the storage tank to the users by use of the following methods oxygen mask , nasal cannula , full face diving mask , oxygen tent , and hyperbaric oxygen chamber. Contrary to popular belief scuba diving scuba divers very rarely carry oxygen tanks. The vast majority of divers breathe air or nitrox stored in a diving cylinder ... . Some of these may carry pure oxygen for accelerated decompression or as a component of a rebreather. Some shallow divers, particularly naval divers, use oxygen rebreathers or have done so historically. Oxygen is rarely held at pressures higher than 200 bar 3000 psi due to the risks of fire triggered ... when moving from one vessel to another. All equipment coming into contact with high pressure oxygen must be oxygen clean and oxygen compatible to reduce the risk of fire . ref name navseaCleaning cite ... title Guide for Oxygen Compatibility Assessments on Oxygen Components and Systems. author Rosales, KR ... Technical Report url http archive.rubicon foundation.org 4861 accessdate 2008 09 05 ref Oxygen clean means the removal of any substance that could act as a source of Combustion ignition . Oxygen compatible means that internal components must not burn readily or degrade easily in a high pressure oxygen ..., storage and transport of pure oxygen. Oxygen tanks are normally stored in well ventilated locations ... Oxygen de Druckluftflasche es Tubo de ox geno pl butla nurkowa ... more details
Image Oxygen absorber.jpeg thumb right An oxygen absorber Image Oxygen Absorber.JPG thumb right The contents of an oxygen absorber from a packet of Jerky food beef jerky. An oxygen absorber is a small packet of material used to prolong the shelf life of food. They are used in food packaging to prevent food colour change, to stop oils in foods from becoming Rancidification rancid , and also retard the growth of oxygen using aerobic microorganisms such as fungi . Oxygen supports the growth of microorganisms and causes changes in color and rancid odors in packaged foods. Plastic packaging is less able to exclude oxygen from packaged foods than are the older glass and metal containers. Oxygen absorbers absorb oxygen and effectively reduce the aerobic environment to 0 oxygen. Therefore aerobic bacteria and fungi are unable to grow in this environment. This will extend the shelf life of a food product from 1 week to several months. The advantages of oxygen satchels versus vacuum packaging are that the food products are not crushed or squeezed, as some products are of high value and are fragile, and its simplicity of use. The packaging itself and the food bag container seal are crucial for the effectiveness of the oxygen absorber. A minor packaging fault or leak can render the oxygen absorber useless and the contents inside the package will perish. Thus, high barrier packaging with a low oxygen transmission rate and efficient seal techniques need to be employed. ref cite web last Cichello first Dr. Simon title A Guide to Oxygen Absorbers url http www.oxygenabsorber.net Oxygen 20Absorbers 20Introduction.pdf publisher Wholesale Group International Pty Ltd accessdate March 2010 ref Oxygen absorbers are made in different formulations to match the water activity of the foods they are protecting. Some are designed to be used in dry foods such as nuts and dried grains, others with moister ... powder and a little bit of water other ingredients may be added to make the oxygen absorbers work more ... more details
Orphan date February 2009 Unreferenced date February 2009 Oxygen absorption plants is the modern non ... Oxygen finds broad application in various technological processes and in almost all industry branches. The primary oxygen application is associated with its capability of sustaining burning process, and the powerful oxidant properties. Due to that, oxygen has become widely used in the metal processing ... as in the oil and gas sector oxygen is used in commercial volumes as an oxidizer in chemical reaction s. Metal Oxy fuel welding and cutting gas welding , cutting and brazing The use of oxygen in gas ... applications of this gas. Oxygen allows generating high temperature flame in welding torches thus ensuring high quality and speed of work performance. Metal industry Oxygen is heavily used in the metal ... ferrous metals and significantly improve the overall process efficiency. Another important oxygen ... dioxide. Chemical and petrochemical industries In the chemical and petrochemical industries, oxygen ... and gas industry, oxygen finds application as a means for viscosity improvement and enhancement of oil and gas Fluid dynamics flow properties . Oxygen is also used for boosting production capacity ... of sulfuric deposits in refineries. Fish farming The use of oxygen in the fish farming helps increase the survival and fertility ratios and reduce the incubation period . Along with fish culture, oxygen is applied for shrimps, crabs and mussels rearing. Glass industry In glass furnaces oxygen is effectively ... The use of oxygen in incinerators allows to significantly increase flame temperature and eventually ... File Mobile oxygen station.jpg thumb Type of performance on semitrailer Adsorption principle ... diagram of work of oxygen plant Temperature and pressure influence The current methods of gaseous oxygen production from air with the use of adsorption technology are nearly brought to perfection. The operation of a modern oxygen adsorption plant is based on the dependence of gas intake by adsorbent ... more details
Orphan date November 2006 Oxygen pulse is a physiological term for oxygen uptake per Heart rate heartbeat at rest. ref strand et al., Textbook of Work Physiology , 4th edition, p. 307 ref References reflist Category Respiratory physiology respiratory stub ... more details
An oxygen fluoride is a compound containing only the chemical element s oxygen and fluorine . Two are well known ref Holleman, A. F. Wiberg, E. Inorganic Chemistry Academic Press San Diego, 2001. ISBN 0 12 352651 5. ref oxygen difluoride dioxygen difluoride References references External links http www.npi.gov.au database substance info profiles 44.html National Pollutant Inventory Fluoride and compounds fact sheet Category Oxygen compounds Category Fluorides Category Nonmetal halides Category Chalcohalides inorganic compound stub de Sauerstofffluoride ja ... more details
Oxygen evolution is the process of generating molecular oxygen through chemical reaction . Mechanisms of oxygen evolution include the oxidation of water during oxygenic photosynthesis , electrolysis of water into oxygen and hydrogen , and electrocatalytic oxygen evolution from oxide s and oxoacid s. Oxygen evolution in nature Photosynthetic oxygen evolution is the fundamental process by which breathable oxygen is generated in earth s biosphere . The reaction is part of the light dependent reaction ... oxygen is generated as a by product of this reaction, and is released into the Earth s atmosphere atmosphere . Biochemical reaction Photosynthetic oxygen evolution occurs via the light dependent oxidation of water to molecular oxygen and can be written as the following simplified chemical reaction ... U title The mystery of oxygen evolution analysis of structure and function of photosystem II, the water ... energy during photosynthesis. ref name Raven Oxygen evolving complex Water oxidation is catalyzed by a manganese containing Cofactor biochemistry cofactor contained in photosystem II known as the oxygen ... crystallography studies have recently provided detailed models of the structure of the oxygen evolving ... K, Barber J, Iwata S title Architecture of the photosynthetic oxygen evolving center journal ... Based on structural and spectroscopy spectroscopic experiments, oxygen evolution involves a core ... are oxidized via intermediate states called S states . The O O bond of molecular oxygen is formed between manganese ligated oxygen atoms at the most oxidized, or S4, state. ref name Robblee cite ... and mechanism of photosynthetic oxygen evolution journal Biochimica et Biophysica Acta volume 1503 issue 1 2 pages 7 23 year 2001 pmid 11115621 doi 10.1016 S0005 2728 00 00217 6 ref Evolution of oxygen evolution Oxygen production during photosynthesis evolved on earth around 3.5 billion years ... biochemistry of photosynthetic oxygen evolution water oxidation journal Biochimica et Biophysica ... more details
Image Oxygen Bar interior, showing flavors.jpg thumb right 292px Interior of an oxygen bar An oxygen bar is an establishment, or part of one, that sells oxygen for recreational use. Individual flavored scents may be added to enhance the experience. The flavors in an oxygen bar come from bubbling oxygen ... of Oxygen. Chemical and Engineering News 86.45 2008 64. ref ref Dispositif de distribution d oxyg ne ... in cheek that Joseph Priestly s newly discovered dephlogisticated air now called oxygen might become ... of oxygen is found in Jules Verne s 1870 novel Around the Moon . In this work Verne states Do you know, my friends, that a curious establishment might be founded with rooms of oxygen, where people whose ... one state in old Europe which ought to put itself under the regime of oxygen for the sake of its health Modeled after the air stations in polluted downtown Tokyo and Beijing, the first official oxygen .... Customers in these bars breathe oxygen through a plastic hose inserted into their nostrils. ref Altman, Nathaniel. The Oxygen Prescription The Miracle of Oxidative Therapies. Rochester Healing, 2007. 313 14 ref Oxygen bars can now be found in many venues such as nightclubs, salons, spas, health ..., as well as at private parties and promotional events. Provision of oxygenOxygen Bar guests will pay about one U.S. dollar per minute to inhale an increased percentage of oxygen compared to the normal atmospheric content of 20.9 oxygen. This oxygen is produced from the ambient air by an industrial non medical oxygen concentrator and inhaled through a nasal cannula from a few minutes to about 20 minutes. ref name FDA The machines used by oxygen bars or oxygen vendors are different from the typical ... around the ears and inserts in the nostrils, to breathe in the oxygen. Customers can enhance their oxygen experience by using aromatherapy scents to be added to the oxygen, such as lavender or mint ... that the human body is oxygen deprived, and so that more oxygen will remove toxins and even ... more details
Wikify date January 2012 Oxygen SpA is an Italy Italian company that manufactures green vehicles . They produce the Oxygen Electric Cargoscooter. ref cite web url http www.mhwmagazine.co.uk LatestNews Oxygen S p A introduces zero emission Oxygen Electric CargoScooter to the UK 6471.html title Oxygen S p A Introduces Zero Emission Oxygen Electric CargoScooter to the UK publisher Material Handling World Magazine ref Oxygen S.p.A. Oxygen S.p.A. is the first Italian company to develop, manufacture and market 100 electric scooters. Oxygen s product is the all electric CargoScooter, designed specifically for the delivery market and the first of its kind intended primarily for inner city delivery use. Based in Padua, Italy, Oxygen was created in 2001 as a technological development of Atala. Under new management since 2004, the strategic direction has been mainly focused on the fleet market. Clients Oxygen provides electric scooters to a number of major delivery fleets. Swiss Post is one of the company s higher profile clients and has acquired a fleet of over 1500 CargoScooters. Vehicles Oxygen s CargoScooter is totally electric and features Lithium Ion Li Ion battery technology. class wikitable Model Power and max. speed Max. distance on one charge CargoScooter 4 kW 50cc e 45 km h 60 Km CargoScooter XR 4 kW 50cc e 45 km h 90 Km CargoScooter LP 4 kW 50cc e 45 km h 120 Km CargoScooter XP 6 kW 125cc e 65 km h 50 Km CargoScooter XP LR 6 kW 125cc e 65 km h 75 Km CargoScooter XP XR 6 kW 125cc e 65 km h 100 Km Awards In recognition of the Company s achievements, Oxygen was nominated at the 2007 World Mail Awards in the Corporate Social Responsibility category for its CargoScooter. In 2009 the Italian Minister for the Environment Land and Sea mentioned Oxygen and the CargoScooter in the Italian Design for Sustainability book. References Reflist Category Motor vehicle manufacturers of Italy Italy company stub transport stub ... more details
Interventions infobox Name Oxygen therapy Image Caption ICD10 ICD9 ICD9proc 93.96 MeshID D010102 OPS301 OtherCodes HCPCSlevel2 File Oxygen piping.png thumb right Oxygen piping and regulator, for oxygen therapy, mounted on the wall of an ambulance Image o2regulator.JPG thumb right Oxygen Regulator for portable D Cylinder, usually carried in an ambulance s resuscitation kit. Oxygen therapy is the administration of oxygen as a medical intervention, which can be for a variety of purposes in both Chronic medicine chronic and Acute medicine acute patient care. Oxygen is essential for Cell biology cell ... title Clinical Guidelines Update Oxygen date April 2009 url http www2.warwick.ac.uk fac med research hsri emergencycare prehospitalcare jrcalcstakeholderwebsite clinicalpracticeupdates oxygen guideline ... 21 oxygen, and increasing the fraction of oxygen in the breathing gas increases the amount of oxygen in the blood. It is often only required to raise the fraction of oxygen delivered to 30 35 and this is done by use of a nasal cannula . When 100 oxygen is needed, it may be delivered via a tight fitting face mask, or by supplying 100 oxygen to an Neonatal intensive care unit Incubator incubator in the case of infants. Oxygen can be administered in other ways, including specific treatments at raised air pressure, such as hyperbaric oxygen therapy . High blood and tissue levels of oxygen can be helpful or damaging, depending on circumstances and oxygen therapy should be used to benefit the patient by increasing the supply of oxygen to the lungs and thereby increasing the availability of oxygen ... . Indications for use Oxygen is used as a medical treatment in both chronic and acute cases ... use of supplementary oxygen is in patients with chronic obstructive pulmonary disease COPD , a common long term effect of smoking , who may require additional oxygen to breathe either during a temporary ... journal The Medical Journal of Australia title Adult domicilariary oxygen. Position statement of the Thoracic ... more details
Unreferenced date December 2007 Oxygen permeability OP is a parameter of a contact lens . OP expresses the ability of the lens to let oxygen reach the eye by diffusion . Another parameter is the transmissibility level abbreviated DK t , the Dk per thickness of the lens, and is generally more used. Typical values are from 25 to 50 units? . In soft contact lenses, it is dependent on the thickness of the lens and the material of the lens, especially concerning the water content. D being diffusivity cm sup 2 sup sec a measure of how fast the oxygen moves through the material. Note, different sources may use different units contact package inserts often use cm sup 2 sup sec, while academic papers may use other values for distance such as mm sup 2 sup sec. k being the solubility ml O sup 2 sup ml of material x mm Hg a measure of how much oxygen is contained in the material. Once again, various sources may use units of different sizes. Do not assume that they re the same unless specified by the source. External links http www.oxygen transmission rate.com oxygen permeation measurement for contact lens.html Oxygen Permeability of Contact Lenses Materials optics stub Category Contact lenses ... more details
Encyclopedia
top
