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  • Ozone
    ...oxygen (O<sub>2</sub>) to dissociate into two single oxygen atoms (O). The oxygen atoms then react with an O<sub>2</sub> to produce O<sub>3</sub>.
    878 bytes (122 words) - 22:17, 16 April 2009
  • Oxygen inhalation therapy
    ...respiratory therapy]], '''oxygen inhalation therapy''' is "inhalation of [[oxygen]] aimed at restoring toward normal any pathophysiologic alterations of gas ...MA, Dean P, Kinsella J, Black R, Carter R, Hughes M |title=Performance of oxygen delivery devices when the breathing pattern of respiratory failure is simul
    904 bytes (120 words) - 21:19, 3 October 2008
  • Air/Definition
    ...] that [[human]]s and all other [[animal]]s breathe in order to obtain the oxygen needed to sustain [[life]].
    326 bytes (50 words) - 14:26, 11 March 2010
  • Oxygen firing power plants
    #REDIRECT [[Oxygen firing power plant]]
    39 bytes (5 words) - 18:00, 14 April 2010
  • Oxy firing plant
    #REDIRECT [[Oxygen firing power plant]]
    39 bytes (5 words) - 18:00, 14 April 2010
  • Oxygen/Elemental Class
    #REDIRECT [[Oxygen/Periodic table of elements]]
    47 bytes (6 words) - 08:00, 6 March 2024
  • Ozone/Definition
    A triatomic molecule, consisting of three oxygen atoms.
    92 bytes (11 words) - 02:51, 30 April 2009
  • Hypoxia/Definition
    A decreased [[partial pressure]] of [[oxygen]] in the [[blood]].
    100 bytes (12 words) - 17:58, 25 May 2010
  • Hyperoxia/Definition
    An increased [[partial pressure]] of [[oxygen]] in the [[blood]].
    101 bytes (12 words) - 17:58, 25 May 2010
  • Heterocycle/Definition
    A cyclized chemical with [[nitrogen]], [[oxygen]] or [[sulphur]] within the ring structure.
    127 bytes (15 words) - 09:16, 6 March 2024
  • Oxidation-reduction/Definition
    ..., [[ion]] or [[molecule]] (oxidation); chemical gain of electrons, loss of oxygen, or gain of hydrogen, from and atom, ion, or molecule (reduction)
    276 bytes (40 words) - 15:52, 1 April 2012
  • Heat of combustion/Definition
    ...nergy released as heat when a substance undergoes complete combustion with oxygen.
    124 bytes (16 words) - 23:03, 23 September 2008
  • Aerobic organism
    ...d anti-oxidant pathways to counter these, using oxygen is dangerous. These oxygen radicals are [[oxidative stress|toxic]], and only organisms which express r ...and are unable to survive for more than a few minutes in the absence of [[oxygen]]
    3 KB (382 words) - 22:02, 13 April 2008
  • Altitude sickness/Definition
    Morbid condition of anoxia caused by the reduced available oxygen at high altitudes.
    120 bytes (16 words) - 07:19, 19 November 2011
  • Carbon dioxide/Definition
    Chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom.
    125 bytes (17 words) - 09:13, 27 January 2009
  • Aerobic organism/Definition
    An organism that has an oxygen-based metabolism.
    84 bytes (10 words) - 10:54, 19 May 2008
  • Lox (disambiguation)
    {{rpl|Liquid oxygen}}
    53 bytes (7 words) - 06:05, 24 September 2013
  • Photosynthesis/Related Articles
    {{r|Oxygen||****}} --> {{r|Oxygen}}
    1 KB (105 words) - 19:17, 27 November 2009
  • P:F ratio/Definition
    ...es}}</noinclude>A measurement of the efficiency by which the lungs extract oxygen from inspired air
    118 bytes (17 words) - 13:04, 23 August 2010
  • Composting/Definition
    The aerobic (i.e. oxygen using) decomposition and stabilization of solid organic materials by aerobi
    148 bytes (19 words) - 20:38, 7 June 2008
  • Internal combustion engine/Definition
    ...ating [[mechanical energy]] from the [[combustion]] of a fuel and external oxygen
    135 bytes (18 words) - 10:06, 29 March 2011
  • Albumin injection/Definition
    ...noinclude>Compoent of human blood used as a plasma volume expander; has no oxygen-carrying capacity and synthetics increasingly preferred
    162 bytes (21 words) - 22:36, 21 December 2010
  • Law of definite proportions
    .... In any given sample of pure water, the mass ratio will always be 88.81% oxygen to 11.20% hydrogen. ...the fixed atomic ratio of 2-to-1 means that the mass ratio of hydrogen-to-oxygen in any bulk sample of water will be the same.
    2 KB (342 words) - 19:45, 17 May 2010
  • Porphyromonas gingivalis/Definition
    Gram-negative, anaerobic, rod-shaped bacteria which produces a cell-bound, oxygen-sensitive collagenase and is isolated from the human mouth.
    178 bytes (20 words) - 06:17, 6 September 2009
  • Stress test/Definition
    Graded test to measure an individual's heart rate and oxygen intake while undergoing strenuous physical exercise.
    150 bytes (19 words) - 21:15, 8 September 2009
  • Septic shock/Definition
    Serious medical condition caused by decreased tissue perfusion and oxygen delivery as a result of infection and sepsis.
    156 bytes (21 words) - 11:19, 8 September 2009
  • Sulfur dioxide/Definition
    ...ess gas (SO<sub>2</sub>) consisting of one atom of sulfur and two atoms of oxygen.
    127 bytes (20 words) - 19:08, 6 November 2008
  • Prostaglandin-endoperoxide synthases/Definition
    ...ostaglandin]]s from the appropriate unsaturated [[fatty acid]]s, molecular oxygen, and a reduced acceptor
    192 bytes (25 words) - 10:32, 17 October 2010
  • Carbonyl group/Definition
    A chemical group containing a carbon atom double bonded to an oxygen atom.
    110 bytes (16 words) - 08:02, 24 September 2008
  • Lactic fermentation/Definition
    A form of fermentation that occurs in animal cells in the absence of oxygen.
    112 bytes (17 words) - 20:55, 31 May 2008
  • Aliphatic nitrate esters/Definition
    ...nds produced by O-type nitration in which a nitro group is attached to an oxygen atom of the compound being nitrated. ([[U.S. Army]])
    186 bytes (28 words) - 21:29, 20 April 2010
  • Facultative anaerobic organism/Definition
    An organism, usually a bacterium, that makes ATP by aerobic respiration if oxygen is present but is also capable of switching to fermentation under anaerobic
    205 bytes (29 words) - 21:49, 25 June 2008
  • Citric acid cycle/Definition
    ...ysed chemical reactions of central importance in all living cells that use oxygen as part of cellular respiration.
    175 bytes (24 words) - 09:40, 3 September 2009
  • Graham's law
    ...will diffuse about 2.8 times (the square root of 8 is 2.83) as quickly as oxygen.
    1 KB (165 words) - 07:59, 29 March 2008
  • Positron emission tomography/Definition
    ...tron]]-emitting [[isotope|radionuclides]] (such as carbon-11, nitrogen-13, oxygen-15 and fluorine-18) to measure cell metabolism.<noinclude>{{DefMeSH}}</noin
    279 bytes (30 words) - 02:19, 15 May 2010
  • P:F ratio
    ...to the fraction of inspired oxygen. It reflects how well the lungs absorb oxygen from expired air. <ref>{{citation ...|author=Cane RD, Shapiro BA, Templin R, Walther K |title=Unreliability of oxygen tension-based indices in reflecting intrapulmonary shunting in critically
    2 KB (237 words) - 13:14, 23 August 2010
  • Cardiac monitor/Definition
    ...nly with non-electrocardiographic information such as respiratory rate and oxygen saturation; may have automatic alarms for dangerous conditions
    252 bytes (29 words) - 11:32, 22 June 2010
  • Oxygen/Periodic table of elements
    <includeonly>Non-Metal</includeonly><noinclude>Oxygen is a [[Non-Metal]].</noinclude>
    85 bytes (9 words) - 05:49, 6 March 2024
  • Facultative anaerobic organism
    ...that makes [[Adenosine triphosphate|ATP]] by [[aerobic respiration]] if [[oxygen]] is present but is also capable of switching to [[Fermentation (biochemist ...nt. In [[brewer's yeast]], the Pasteur shift is the observed cessation of oxygen consumption when fermentable sugar is supplied. In a growing culture, the e
    1 KB (194 words) - 08:51, 14 September 2013
  • Hydroxyl/Definition
    A molecule consisting of an oxygen atom and a hydrogen atom connected by a covalent bond (single bond).
    140 bytes (21 words) - 20:26, 3 September 2009
  • Carbon monoxide/Definition
    ...tly lighter than [[air]] and consists of one [[carbon]] [[atom]] and one [[oxygen]] atom.
    183 bytes (25 words) - 21:30, 6 November 2011
  • Tyrosine kinase/Definition
    ...of a phosphate group from an adenosine triphosphate (ATP) to the hydroxyl oxygen atom on the amino acid tyrosine.
    213 bytes (30 words) - 23:42, 12 January 2009
  • Metabolic equivalent/Definition
    ...sting, usually calculated as the energy used to burn 3 to 4 milliliters of oxygen per kilogram of body weight per minute.
    182 bytes (26 words) - 23:06, 7 September 2009
  • Oxidative stress/Definition
    An imbalance between the production of reactive oxygen and a biological system's ability to readily detoxify the reactive intermed
    211 bytes (28 words) - 02:52, 30 April 2009
  • Rocket engine/Definition
    ...ot gases expelled by a mixture of chemicals that does not need an external oxygen source
    212 bytes (34 words) - 23:20, 22 March 2010
  • Water/Definition
    A chemical compound with one oxygen and two hydrogen atoms (H<sub>2</sub>0). It is often in a liquid form and m
    214 bytes (36 words) - 03:50, 18 August 2009
  • Ether (chemistry)/Definition
    ...ound in which two [[hydrocarbon]]s are joined together by an intervening [[oxygen]] atom; denoted R-O-R. In the past, diethyl ether was used as an [[anesthet
    255 bytes (37 words) - 21:58, 23 September 2008
  • Blood gas analysis/Definition
    Test which measures the amounts of oxygen and carbon dioxide in the blood, as well as the acidity (pH) of the blood.
    153 bytes (25 words) - 02:43, 5 September 2009
  • Carbohydrate/Definition
    [[Organic compound]]s containing [[carbon]], [[hydrogen]], and [[oxygen]]; includes [[sugar]]s and [[starch]]es that provide [[energy (science)|ene
    280 bytes (38 words) - 07:50, 7 April 2010
  • Thiophosphoramidite
    ...non-bridging oxygen atoms of the phosphate linker between the O3' and O5' oxygen atoms between two nucleotides. In such DNA, one of the sulfur atoms origin
    1 KB (166 words) - 08:11, 19 September 2009
  • Coal-fired power plant (disambiguation)
    {{rpl|Oxygen firing power plant}}
    244 bytes (32 words) - 13:16, 24 January 2023
  • Nazi high altitude experiments/Definition
    ...severe injury. They were intended to learn human responses to the cold and oxygen deprivation of high-altitude flight.
    298 bytes (42 words) - 22:16, 9 November 2010
  • Anabantids
    ...tuated internally near the gills. Its function is to store air and extract oxygen.
    1 KB (162 words) - 04:36, 21 January 2011
  • Hyperoxia
    ...participants inhaled either pure [[oxygen]] (hyperoxia condition), or 95% oxygen and 5% [[carbon dioxide]] ([[hypercapnia|hypercapnic]] hyperoxia). Yellow (
    1 KB (145 words) - 17:25, 27 May 2010
  • Photosynthesis/Addendum
    ...arliest forms of photosynthetic life were almost certainly anoxygenic (non-oxygen evolving). ...nvention of oxygenic photosynthesis and the subsequent rise of atmospheric oxygen approximately 2.4 billion years ago revolutionized the energetic and enzyma
    3 KB (375 words) - 21:45, 27 August 2011
  • Hydrogen bond/Definition
    ...olving a [[hydrogen]] [[atom]] and either [[Fluorine]], [[Nitrogen]], or [[Oxygen]].
    203 bytes (25 words) - 23:44, 16 July 2008
  • Fish/How fish function
    ...and extracts oxygen from it. Some [[catfish]]es also gulp air and extract oxygen in a capillary-rich offshoot of the gut.
    2 KB (354 words) - 20:39, 5 September 2009
  • Prostaglandin-endoperoxide synthase
    ...ostaglandin]]s from the appropriate unsaturated [[fatty acid]]s, molecular oxygen, and a reduced acceptor.<ref>{{MeSH}}</ref>
    369 bytes (41 words) - 01:56, 7 October 2013
  • Avogadro's law
    ...example, the molecular weight of [[oxygen]] is 32.00, so that one mole of oxygen has a mass of 32.00 grams and contains ''N''<sub>A</sub> molecules.
    1 KB (158 words) - 14:20, 26 November 2010
  • Oxygen firing power plant/Definition
    ...ing plant, works like a [[conventional coal-fired power plant]] but uses [[oxygen]] instead of [[air]] to burn the [[coal]]; see the [[Wikipedia:Oxy-fuel com
    273 bytes (38 words) - 17:30, 24 January 2023
  • Blood
    ...n most higher [[animal]]s. It is a [[liquid]] that serves to diffuse the [[oxygen]] necessary to [[life]] throughout the body, and to remove waste products. ...to [[hemoglobin]], a [[respiratory pigment]] containing [[iron]], to which oxygen binds. Hemoglobin is the most efficient respiratory pigment found in nature
    2 KB (261 words) - 09:00, 1 March 2024
  • Permissive hypotension/Definition
    ...ment, using just enough fluid to raise the blood pressure enough to ensure oxygen perfusion of the brain, but not raising the blood pressure to normal, a lev
    283 bytes (44 words) - 01:34, 15 November 2010
  • Red blood cells/Definition
    ...cell that contain hemoglobin, and the body's principal means of delivering oxygen to the body's cells via the blood, and the removal of carbon dioxide wastes
    282 bytes (42 words) - 22:41, 10 December 2009
  • Disseminated intravascular coagulation/Definition
    ...first causes the production of widespread small clots that interfere with oxygen delivery and may lead to multiorgan failure, and then, due to exhaustion of
    395 bytes (56 words) - 18:25, 18 September 2010
  • Oxygen/Bibliography
    *Lane N. (2002) Oxygen: The Molecule That Made the World. Oxford University Press. ISBN 978-0-19-8
    453 bytes (65 words) - 23:37, 23 April 2008
  • Power (disambiguation)
    {{rpl|Oxygen firing power plant}} {{rpl|Oxygen firing power plant}}
    1 KB (178 words) - 13:34, 24 January 2023
  • Diatomic molecule
    Examples of elements that form diatomic molecules in the gas phase are oxygen and nitrogen (the main components of air), as well as hydrogen and at least
    332 bytes (53 words) - 21:15, 10 November 2020
  • Carbon monoxide/Related Articles
    {{r|Oxygen}}
    288 bytes (34 words) - 21:52, 6 November 2011
  • Blood gas analysis/Related Articles
    {{r|Oxygen}}
    373 bytes (47 words) - 02:53, 26 May 2010
  • Fluid resuscitation
    ...e needed to replace oxygen-carrying capacity, but there are some cell-free oxygen transport agents, which are administered in some of the fluids mentioned he
    2 KB (212 words) - 17:26, 23 December 2010
  • Hemoglobin
    In [[biology]], '''hemoglobin''' is the iron-based, oxygen-carrying protein molecule of red blood cells. These protein structures are ...without hemoglobin. The mammalian hemoglobin molecule can carry up to four oxygen molecules.
    3 KB (388 words) - 16:25, 26 March 2023
  • Pulse oximetry
    ...e of [[oxygen]] saturation (the percent of hemoglobin molecules bound with oxygen molecules) can be made. ...[oxygen]] levels, but also can be blinded by excessive concentrations of [[oxygen]]. Furthermore, obtaining an [[arterial blood gas]] from a neonatal patien
    6 KB (875 words) - 10:24, 22 June 2010
  • Oxidation state
    ...dation state of -1 in [[hydrides]] of [[active metal]]s, e.g. [[LiH]], and oxygen has an oxidation state of -1 in [[peroxide]]s, e.g. [[Hydrogen Peroxide|H<s
    1 KB (248 words) - 12:24, 3 April 2012
  • Gangrene/Related Articles
    {{r|Hyperbaric oxygen therapy}}
    526 bytes (57 words) - 13:04, 16 February 2009
  • Respiratory failure
    In [[medicine]], '''respiratory failure''' is "failure to adequately provide oxygen to cells of the body and to remove excess carbon dioxide from them."<ref>{{ ...|author=Cane RD, Shapiro BA, Templin R, Walther K |title=Unreliability of oxygen tension-based indices in reflecting intrapulmonary shunting in critically i
    4 KB (585 words) - 06:12, 23 August 2010
  • Preventive medicine/Related Articles
    {{r|Hyperbaric oxygen}}
    435 bytes (53 words) - 20:19, 6 October 2008
  • Hormesis/Bibliography
    ...enorhabditis elegans by increasing the formation of mitochondrial reactive oxygen species]. ''Horm Metab Res'' 43:687-92. ...mitochondrial respiration, culminating in increased formation of reactive oxygen species (ROS). Extension of lifespan requires activation of pmk-1, an ortho
    3 KB (419 words) - 18:30, 7 December 2011
  • Chemical name
    ...ub>5</sub>OH is more common for ethanol, to show that one hydrogen and one oxygen combine in a [[hydroxyl]] group. ...ere are two different molecules that can be formed from three carbons, one oxygen, and eight hydrogens:
    2 KB (350 words) - 10:54, 11 June 2009
  • Hypercapnia/Related Articles
    {{r|Oxygen}}
    490 bytes (69 words) - 12:57, 27 May 2010
  • Hypocapnia/Related Articles
    {{r|Oxygen}}
    491 bytes (69 words) - 12:57, 27 May 2010
  • Mercaptan
    ...the [[sulphur]] analogs of [[alcohol]]s. Sulfur is in the same group as [[oxygen]] in the [[Periodic table of elements|Periodic table]] and forms similar co
    554 bytes (82 words) - 09:16, 6 March 2024
  • Oxygen inhalation therapy/Related Articles
    Auto-populated based on [[Special:WhatLinksHere/Oxygen inhalation therapy]]. Needs checking by a human.
    453 bytes (57 words) - 19:18, 11 January 2010
  • Altitude sickness
    ...ss''' is "a morbid condition of [[anoxia]] caused by the reduced available oxygen at high altitudes."<ref>{{MeSH}}</ref>
    627 bytes (82 words) - 07:16, 19 November 2011
  • Nebulizer
    ...]]s, it requires no patient cooperations, and its output can be mixed with oxygen by mask, or through a breathing tube.
    547 bytes (85 words) - 16:44, 4 February 2009
  • Congenital heart defect
    ...without receiving more oxygen. Likewise, the pulmonary artery receives the oxygen-rich blood from the left ventricle but carries it back to the lungs.
    3 KB (405 words) - 18:12, 12 June 2010
  • Dextran 70
    ...application to [[hydroxyethyl starch]], but is more antigenic. Neither has oxygen-carrying capacity, or contributes to the ability of blood to coagulate.
    613 bytes (80 words) - 23:14, 21 December 2010
  • Uracil/Related Articles
    {{r|reactive oxygen species}}
    449 bytes (54 words) - 12:48, 19 June 2008
  • Hydroxyl
    ...iation chemistry, since it leads to the formation of hydrogen peroxide and oxygen, which can enhance corrosion and SCC in coolant systems subjected to radioa The alkly radical will typically react rapidly with oxygen forming a [[peroxy]] radical.
    3 KB (416 words) - 14:07, 5 November 2007
  • Antoine-Laurent Lavoisier/Bibliography
    ...007) ''A World on Fire: A Heretic, an Aristocrat, and the Race to Discover Oxygen''. Penguin. First published 2005. | [http://books.google.com/books?id=Gspao ...ey (1733-1804) and Antoine-Laurent Lavoisier (1743-1794), the discovery of oxygen and its role in the chemistry of life and technology, the worlds of England
    2 KB (306 words) - 17:14, 14 March 2012
  • Air/Related Articles
    {{r|Oxygen}}
    688 bytes (86 words) - 22:43, 11 March 2010
  • Necrotizing fascitis
    ...h empirical antibiotic therapy should be started immediately. [[Hyperbaric oxygen therapy]] has been reported to be useful. ===Hyperbaric oxygen===
    4 KB (541 words) - 18:00, 13 June 2010
  • Iron
    ...forced into the furnace at the bottom. In the furnace the coke reacts with oxygen:
    2 KB (286 words) - 14:07, 21 January 2024
  • Chemical symbol
    Well-known examples of one-letter symbols are H for [[hydrogen]] and O for [[oxygen]]; For example, O<sub>2</sub> is oxygen, and O<sub>3</sub> is [[ozone]].
    3 KB (478 words) - 05:12, 23 October 2013
  • Oxidative stress/Related Articles
    {{r|Oxygen}}
    650 bytes (85 words) - 19:18, 11 January 2010
  • Ether (chemistry)
    ...d thus use of diethyl ether in the operating room, in the presence of high oxygen levels, in no longer used. ...led epoxides are class of cyclic ethers with only two carbon atoms and one oxygen atom in the ring structure. In addition to the Wiliamson ether synthesis (i
    4 KB (546 words) - 17:14, 31 October 2010
  • Deaerator
    ...id]] that causes further corrosion. Most deaerators are designed to remove oxygen down to levels of 7 ppb by weight (0.0005 cm³/L) or less.<ref name=Spirax> == Oxygen scavengers ==
    6 KB (932 words) - 17:34, 1 May 2010
  • Amifostine
    '''Amifostine''' is a cytoprotective agent that scavenges reactive oxygen species and other highly reactive [[free radical]]s. It is used to reduce
    760 bytes (103 words) - 18:08, 20 June 2011
  • Oxazolidinone
    ...n]] atom ("aza"), and [[oxazole]]s, which contain both a nitrogen and an [[oxygen]] atom in the ring system. The [[ketone]] carbon is noted by the suffix "on
    786 bytes (108 words) - 14:35, 26 November 2010
  • Atomic electron configuration/Related Articles
    {{r|Oxygen}}
    697 bytes (89 words) - 05:42, 6 March 2024
  • Oxidation-reduction/Bibliography
    ...modernes. Chez Cuchet. | [http://books.google.com/books?id=hZch3yOrayUC&vq=oxygen&dq=inauthor:Lavoisier&lr=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is= ...005) ''A World on Fire: A Heretic, an Aristocrat, and the Race to Discover Oxygen''. New York: Viking. ISBN 0670034347; [http://us.penguingroup.com/nf/Book/B
    1 KB (160 words) - 15:49, 6 July 2012
  • Heart
    ...vessels function to transport blood through the entire body and exchange [[oxygen]] and nutrients for [[carbon dioxide]] and wastes. ...ght ventricles to the lung, where it gives off carbon dioxide and receives oxygen. The aorta is the largest artery. It carries oxygenated blood from the left
    7 KB (1,141 words) - 00:03, 8 February 2010
  • Half-life/Related Articles
    {{r|Oxygen}}
    802 bytes (101 words) - 12:57, 15 March 2024
  • Acetone
    ...ially charged and becomes more electrophilic. Protonation of the carbonyl oxygen also enhances the electrophility in a similar manner. ...e C-O bond becomes a single bond, and the negative charge is placed on the oxygen atom. This is the deprotonated enol form.
    5 KB (834 words) - 08:12, 15 March 2024
  • Rocket fuel
    ...to burn even when the rocket had risen to high to use ambient atmospheric oxygen.<ref name=popularmechanics2015-09-01/><ref name=popularmechanics2020-09-04/
    3 KB (398 words) - 10:08, 28 February 2024
  • Elementary charge/Related Articles
    {{r|Oxygen}}
    777 bytes (99 words) - 16:15, 11 January 2010
  • X-1 (aircraft)
    ...sentially a .50 caliber bullet with wings and a tail. It had enough liquid oxygen and ethanol for a short powered flight, and then glided to a landing.
    674 bytes (108 words) - 19:28, 2 February 2009
  • Carbonyl group
    ...l group]] which consists of a [[carbon]] atom with is double bound to an [[oxygen]] atom. Closely related chemical groups include [[carboxylic acid]]s, in w
    727 bytes (121 words) - 08:16, 24 September 2008
  • Ozone/Related Articles
    {{r|Oxygen}}
    791 bytes (104 words) - 19:18, 11 January 2010
  • Functional magnetic resonance imaging
    ...se changes in magnetic properties, and creates an image based on the blood-oxygen-level-dependent (BOLD) signal.
    4 KB (541 words) - 09:14, 20 July 2010
  • Molecular mass
    The three naturally occurring isotopes of the oxygen atom are: <br/> The standard atomic weight (isotopically averaged mass) of oxygen is 15.9994 u.
    2 KB (363 words) - 21:15, 2 January 2008
  • Taurine
    ...c acid]], [[cysteine sulfinic acid]]. A third oxidation step adds another oxygen atom to form a [[sulfonic acid]], [[cysteine sulfonic acid]], also called c
    3 KB (353 words) - 11:31, 11 December 2010
  • Sulfur dioxide
    ...lar]] structure consists of one [[atom]] of [[sulphur]] and two atoms of [[oxygen]]. ...orbital]]. The structure includes two double bonds between sulfur and the oxygen atoms, and one lone pair of electrons on the sulfur atom. The length of th
    2 KB (354 words) - 09:16, 6 March 2024
  • Aeration basin
    ...ers|rotating biological contactors]]. They all have in common the use of [[oxygen]] (or air) and [[Microbe|microbial]] action to biotreat the pollutants in w ...are rated to deliver the amount of air equivalent to 1.8 to 2.7&nbsp;kg [[Oxygen|O<sub>2</sub>]]/kWh. However, they do not provide as good mixing as is norm
    3 KB (450 words) - 16:07, 5 September 2010
  • Law of multiple proportions (chemistry)/External Links
    ...molecular manipulable models of different compounds of solely nitrogen and oxygen, illustrating the law of multiple proportions.] USC Department of Chemistry
    1,010 bytes (128 words) - 21:16, 4 June 2009
  • Unified atomic mass unit/Related Articles
    {{r|Oxygen}}
    768 bytes (104 words) - 14:34, 10 September 2011
  • Squalane
    Squalane is an apolar oil that is stable in air and oxygen. Since squalane does not oxidize easily, it is a better ingredient for cos
    813 bytes (121 words) - 07:57, 13 August 2009
  • Heterocycle
    ...matic compounds, and their alkyl derivatives, that contain [[nitrogen]], [[oxygen]] or [[sulphur]] atoms within the ringed structure. These contrast with [[
    1 KB (129 words) - 09:16, 6 March 2024
  • Common Goldfish/Tutorials
    ...ldfish bowl is not suitable: it has limited surface area for the uptake of oxygen into the water, no room for a filtration system, and insufficient swimming ...at deal of stress on them. If conditions become too warm and the dissolved oxygen level falls, the fish will gasp at the surface, their fins will become clam
    2 KB (364 words) - 12:26, 30 December 2009
  • Law of multiple proportions (chemistry)/Bibliography
    ...d. Here the same amount of nitrogen united with one, two and four parts of oxygen to form three distinct compounds. Why these numbers which again were multip
    3 KB (538 words) - 21:11, 4 June 2009
  • Carnitine
    ...CoA molecule by the enzyme [[carnitine acyltransferase I]] to the hydroxyl oxygen atom of carnitine, forming an [[acyl carnitine]]. A [[translocase]] enzyme
    785 bytes (113 words) - 20:42, 14 February 2010
  • Diatom
    ...er. Algae, including diatoms, account for nearly a quarter of the world's oxygen.
    994 bytes (130 words) - 10:40, 3 July 2022
  • Stratosphere/Related Articles
    {{r|Oxygen}}
    890 bytes (115 words) - 20:39, 11 January 2010
  • Catfishes
    ...e skin may be naked or covered with bony plates, or scutes. They often use oxygen that is gulped at the surface and extracted in the gut. Usually omnivorous,
    1 KB (154 words) - 23:45, 8 September 2009
  • Oxygen
    |elName=Oxygen '''Oxygen''' is a [[Chemical elements|chemical element]], typically found as a [[gas]
    12 KB (1,791 words) - 05:43, 6 March 2024
  • Jokes
    Love iis like oxygen said the Scottish man
    747 bytes (150 words) - 09:19, 6 August 2023
  • Environmental chemistry
    ...[[dissolved oxygen]] (DO), [[chemical oxygen demand]] (COD), [[biological oxygen demand]] (BOD), and [[pH]].
    4 KB (551 words) - 11:52, 2 February 2023
  • Carotenoid
    ...ls more hydrophilic than the carotenes so that they can react with singlet oxygen radicals in water.
    1 KB (139 words) - 04:32, 14 February 2010
  • Bleomycin
    ...which cause single- and double-stranded breaks in [[DNA]]; these reactive oxygen species also induce lipid peroxidation, carbohydrate oxidation, and alterat
    3 KB (363 words) - 19:07, 1 July 2010
  • Vanadium/Related Articles
    {{r|Oxygen}}
    1 KB (164 words) - 09:18, 6 March 2024
  • Oxidation state/Related Articles
    {{r|Oxygen}}
    1 KB (165 words) - 09:18, 6 March 2024
  • Electrical power plant
    {{r|Oxygen firing power plant||**}}
    1 KB (155 words) - 14:24, 14 March 2021
  • Amide
    ...se reactions where amines do react as nucleophiles, they react through the oxygen instead of the nitrogen. It also lends partial double bond character to the
    3 KB (410 words) - 02:51, 17 October 2013
  • Conventional coal-fired power plant/Related Articles
    {{rpl|Oxygen firing power plant}}
    876 bytes (114 words) - 09:52, 18 February 2023
  • Thioaptamer
    ...[[DNA]] or [[RNA]]) [[aptamer]]s, in which some or all of the non-bridging oxygen atoms of phosphodiester bonds have been replaced by [[sulphur]] atoms in or ...agent]] is used to incorporate a single sulfur atom. If both non-bridging oxygen atoms are to be replaced, [[thiophosphoramidite]]s, rather than phosphorami
    4 KB (522 words) - 09:16, 6 March 2024
  • Carboxylic acid
    Carboxylic acids contain a carbon atom that is attached to one oxygen atom with a double bond, a hydroxyl group by a single bond, and one additio ...ive charge of the conjugate base is shared between the two electronegative oxygen atoms, and this effect can be visualized as two different resonance structu
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  • Law of multiple proportions (chemistry)
    ...26.6 grams of oxygen to form carbon dioxide, the ratio 13.3:26.6 = 1:2 for oxygen in the two compounds. ...pounds NO (nitric oxide) and NO<sub>2</sub> (nitric dioxide). The ratio of oxygen weights (1:2) in those compounds contains the small whole numbers 1 and 2.
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  • Fermentation (biochemistry)
    ...molecules that are abundant in the organism's [[ecological niche]] (often oxygen). ...ve been the primary means of energy production in earlier organisms before oxygen was at high concentration in the atmosphere and thus would represent a more
    8 KB (1,169 words) - 06:27, 9 June 2009
  • Electronegativity
    ...fe]] on [[Earth]]. The transfer of electrons between [[carbon]] (C) and [[oxygen]] (O) allows the storage and release of [[energy]] [[Radiation|transmitted] ...awn away from O toward C). This requires a higher potential energy because Oxygen tends to attract the electrons more strongly than Carbon due to the relativ
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  • Astatine/Related Articles
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  • Thermocline
    ...g this period the water in the lake mixes, allowing water with dissolved [[oxygen]] to be mixed to the bottom of the lake. ...the surface of the lake becomes less dense and floats on the thermocline. Oxygen can't get down below the thermocline, until the water mixes again, in the S
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  • Inositol
    ...ally. Inositol acts as a [[fatty acid]] transport by coupling its hydroxyl oxygen atoms with the carboxyl groups of fatty acids. The stereochemistry of myo-i
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  • Air (disambiguation)
    ...steless mixture of gases consisting mostly of nitrogen (N<sub>2</sub>) and oxygen<sub>2</sub>(O2). Other meanings of the word air include:
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  • Pulmonary function test
    ...us processes involved in the act of respiration: inspiration, expiration, oxygen and carbon dioxide exchange, lung volume and compliance, etc.<ref>{{MeSH}}
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  • Tyrosine kinase
    ...of a phosphate group from [[adenosine triphosphate]](ATP) to the hydroxyl oxygen atom on the amino acid [[tyrosine]]. This process is known as tyrosine phos
    1 KB (162 words) - 20:16, 12 January 2009
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  • Chemical compound
    ...whose [[molecule]]s consist of two [[hydrogen]] (H) atoms bonded to one [[oxygen]] (O) atom. Note a 1 after the O is understood and for simplicity not expl ...lent CF<sub>3</sub>CO<sub>2</sub> ensemble. The H atom is attached to one oxygen through a polar covalent bond.
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  • Combustion
    ...(CH<sub>4</sub>) reacts with an [[Oxidation|oxidizing]] element such as [[oxygen]] (O<sub>2</sub>) and the combustion products are compounds of each element <center>'''methane + oxygen → carbon dioxide + water vapor'''<br/>
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  • Cobalt(II,III) oxide
    When heated in the presence of excess oxygen:
    1 KB (158 words) - 02:07, 15 June 2008
  • Preventive medicine
    ...y of diseases and poisonings can be treated by saturating the patient with oxygen.
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  • Centennial Challenges
    ...will reward US$250,000 for a system capable of extracting 2.5 kilograms of oxygen from 100 kilograms of artificial lunar regolith in 4 hours or less. <ref>ht | Expires Jun 1, 2008 || [[Moon Regolith Oxygen Challenge]] (MoonROx) || $1M || California Space Education & Workforce Ins
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  • Erythrocyte
    ...biconcave disks containing [[hemoglobin]] whose function is to transport [[oxygen]]."<ref>{{MeSH}}</ref> [[Reticulocyte]]s are the immediate immature but ci
    1 KB (174 words) - 10:39, 10 June 2010
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  • Red blood cells
    ...d cell]] and the [[vertebrate]] [[body]]'s principal means of delivering [[oxygen]] from the [[lung]]s or [[gill]]s to body tissues via the [[blood]]. ...in the [[blood plasma]]). A related compound, [[myoglobin]], acts to store oxygen in [[muscle]] cells.
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    1 KB (198 words) - 09:18, 6 March 2024
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  • Permissive hypotension
    }}</ref> The goal, instead, is to raise it high enough to ensure oxygen perfusion of the brain, but no higher. Normal systolic blood pressures have
    1 KB (169 words) - 20:04, 19 August 2010
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    1 KB (202 words) - 09:18, 6 March 2024
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    1 KB (201 words) - 12:57, 15 March 2024
  • Oxidation-reduction
    ...|compound]]) reacts with [[oxygen]] in the presence of [[heat]] to form an oxygen-containing product referred to as a 'calx', an [[oxide|'oxide']].<ref name= ...substance]], when heated to 300-350 <sup>o</sup>C, reacts with gaseous (g) oxygen (O<sub>2</sub>), also an elementary substance, to form the solid oxide, [[m
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  • Acanthostega
    ...e been to evolve a wider and deeper set of lungs more capable of breathing oxygen. A stronger set of limbs would be needed in order to walk on land, which wo
    5 KB (763 words) - 08:08, 9 February 2013
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  • Lewis acid-base theory
    ...carbonyl oxygen atoms, nitrogen atoms in amide groups, or [[ether]]-like [[oxygen]] or [[nitrogen]] atoms, often within cyclic compounds. Al<sub>3</sub> is
    3 KB (523 words) - 05:03, 12 September 2013
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  • Ecological footprint
    ...requisites for biodegradation are lacking, e.g. suitable amounts of water, oxygen, or [[pressure]].
    3 KB (471 words) - 23:26, 7 February 2009
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    1 KB (178 words) - 05:26, 9 June 2011
  • Loaches
    ...hes]], loaches can gulp atmospheric air at the water's surface and extract oxygen from it as it passes through the gut. Many species are nocturnal and hide a
    1 KB (198 words) - 05:49, 9 December 2009
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  • English spellings/Catalogs/Common misspellings O
    * {{search link|oxigen||ns0|ns14|ns100}} (oxygen) * {{search link|oxyen||ns0|ns14|ns100}} (oxygen)
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  • Lithium/Related Articles
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  • Stress test
    ...ity of exercise is often graded, using criteria such as rate of work done, oxygen consumption, and heart rate."<ref>{{MeSH}}</ref>
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    2 KB (218 words) - 09:18, 6 March 2024
  • Reduction potential
    ...ub> indicates an environment that favors oxidation reaction such as free [[oxygen]]. A low negative E<sub>h</sub> indicates a strong reducing environment, s ...es. Redox affects the solubility of [[nutrient]]s, especially metal ions. Oxygen strongly affects redox potential.
    3 KB (523 words) - 08:32, 13 February 2009
  • Saccharomyces cerevisiae
    ...vironment, S. cerevisiae carries out aerobic respiration to gain ATP. When oxygen is absent, the yeast carries out anaerobic fermentation of its sugar substr ...wing process. Because Saccharomyces cerevisiae can survive with or without oxygen, and can reproduce sexually or asexually, this species can thrive in many v
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  • Thermobaric explosives
    ...round-penetrating bombs with thermobaric warheads deliberately exhaust the oxygen in the target, to asphyxiate those who are not killed by blast and thermal ...ulti-step detonation processes in which an HE bursting charge disperses an oxygen-deficient energetic fuel. They have different pressure-vs-time versus high
    5 KB (699 words) - 07:37, 18 March 2024
  • Flame hardening
    It involves heating the surface to be hardened with a high temperature oxygen-acetylene flame through a [[nozzle]] until it is austenitized. Water, dilut
    1 KB (191 words) - 13:09, 11 March 2011
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  • Chemistry/Approval
    affinity is 18th century, oxygen is Capital O , not zero,
    1 KB (156 words) - 15:56, 26 September 2007
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  • Apollo 13 (mission)
    *Service Module, containing [[fuel cell]]s for power and oxygen, and other support systems; not accessible to the crew; the explosion that
    1 KB (186 words) - 04:39, 26 October 2013
  • Blood gas analysis
    ...on dioxide in expired air. [[Pulse oximetry]] nonintrusively approximates oxygen levels based on the attenuation of multiple wavelengths of light by hemoglo ...[[pulse oximetry]], approximates blood oxygen not by measuring the actual oxygen in blood, but by the optical attenuation of at least to [[infrared]] wavele
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  • Circulatory system
    ...body through a network of hollow vessels. The circulation of blood brings oxygen and food molecules to cells, and removes carbon dioxide and the waste produ ...s that irrigate the soil, it is through the capillaries that nutrients and oxygen pass out to cells, and it is through the capillaries that carbon dioxide an
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  • Unified atomic mass unit
    ...ss of an oxygen atom (averaged over the natural abundance of the different oxygen [[isotope]]s). Both units are slightly smaller than the ''unified atomic ma ...s spectrometer]], replace it by one sixteenth of the mass of one atom of [[oxygen]]-16.
    7 KB (1,035 words) - 13:02, 11 September 2011
  • Magnesium/Related Articles
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  • Parasympathetic nervous system
    ...rvous system can also constrict the bronchiolar diameter when the need for oxygen has diminished.
    2 KB (216 words) - 09:44, 23 January 2008
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  • Silicon
    ...In [[Earth]]'s crust, silicon is the second most abundant element after [[oxygen]], being about 28% of the crust by mass.<ref>[http://hyperphysics.phy-astr.
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  • Chloroplast/Related Articles
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  • Fire extinguisher
    ...he extinguisher will displace breathable air, be sure you have a source of oxygen. People have become unconscious very quickly when using a [[carbon dioxide] #Oxidizer, usually oxygen
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    {{r|Oxygen}}
    2 KB (231 words) - 09:18, 6 March 2024
  • Propellant
    ...n gasoline or diesel fuel in an automotive engine, oxidized by atmospheric oxygen.
    1 KB (204 words) - 08:30, 19 March 2024
  • Human heart
    ...is pumped all round the body in [[systemic circulation]]. The body removes oxygen and nutrients from the blood to be used in [[respiration]] and the cycle co
    4 KB (629 words) - 09:08, 1 March 2024
  • Lead/Related Articles
    {{r|Oxygen}}
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  • Phosgene
    ...ure to form [[carbon dioxide]] (CO2) and [[hydrochloric acid]] (HCl). The oxygen atom of water molecules act as [[nucleophile|nucleophiles]] and attack the
    1 KB (194 words) - 12:46, 11 June 2009
  • Sodium/Related Articles
    {{r|Oxygen}}
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  • Sodium
    |hazard=Potentially explosive. Store in dry, inert, oxygen-free atmosphere.
    1 KB (183 words) - 21:03, 12 January 2021
  • Nitromethane
    ...cate the resonance between two structures in which one or the other of the oxygen atoms forms a double bond with the nitrogen atom.}}
    1 KB (214 words) - 05:43, 12 September 2013
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    2 KB (247 words) - 09:18, 6 March 2024
  • Pulmonary fibrosis
    ...s and [[collagen]] causing an irreversible loss of the ability to transfer oxygen into the bloodstream via [[pulmonary alveoli]]. Patients show progressive [
    2 KB (227 words) - 18:52, 26 June 2010
  • Carbon
    .... Most organic carbon compounds contain [[hydrogen]]; those that contain [[oxygen]] as well include the extensive class of [[carbohydrates]]. ...ed with the atmosphere over a period of hundreds of years. Nearly ½ of all oxygen we breathe is generated by photosynthesis of marine plants. Approximately 4
    5 KB (806 words) - 17:16, 1 January 2021
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    2 KB (247 words) - 12:57, 15 March 2024
  • Ischemic colitis
    ...= Lee ES, Bass A, Arko FR, et. al. | title = Intraoperative colon mucosal oxygen saturation during aortic surgery. | volume = 136 | issue = 1 | pages = 19�
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  • Light/Related Articles
    {{r|Oxygen}}
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  • Lactic fermentation
    ...a form of fermentation that occurs in [[animal cell]]s in the absence of [[oxygen]]. Under these conditions, [[Glycolysis]] occurs normally, producing 2 mole ...xygenated, it is unlikely that lactate would accumulate (as is the case in oxygen-starved muscle cells). This also allows circulating [[glucose]] to be avail
    4 KB (581 words) - 14:23, 5 November 2007
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    2 KB (257 words) - 12:57, 15 March 2024
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    2 KB (256 words) - 09:18, 6 March 2024
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    {{r|Oxygen firing power plant||**}}
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  • Flue gas emissions from fossil fuel combustion
    ...combusted with ambient air (as differentiated from combustion with pure [[oxygen]]) and this article is based on the use of ambient air as the combustion ai ...created by the combustion of the [[hydrogen]] in the fuel with atmospheric oxygen. Much of the 'smoke' seen exiting from [[flue gas stack]]s is this water v
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  • Ultraviolet/Related Articles
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  • SS-1 SCUD
    ...he R-11 used storable liquid propellants, rather than the cryogenic liquid oxygen used by the V-2.
    1 KB (234 words) - 07:35, 18 March 2024
  • Haber process
    ...sis of water is the decomposition of water (H<sub>2</sub>O) into gaseous [[oxygen]] (O<sub>2</sub>) and hydrogen]] (H<sub>2</sub>) due to an [[electricity|el ...harged electrode). The generated amount of hydrogen is twice the amount of oxygen, and both are [[proportional]] to the total [[electrical charge]] that was
    7 KB (1,067 words) - 10:08, 28 February 2024
  • Cellular respiration
    ...ATP synthase. Respiration is the process by which cells obtain energy when oxygen is present in the cell. ...d in the cytoplasm of cells in all living organisms and does not require [[oxygen]]. The process converts one molecule of [[glucose]] into two molecules of [
    9 KB (1,309 words) - 04:08, 26 September 2007
  • Fluorine/Related Articles
    {{r|Oxygen}}
    2 KB (280 words) - 09:18, 6 March 2024
  • Partial pressure/Citable Version
    [[Earth's atmosphere|air]], [[oxygen]] 21% by volume and [[nitrogen]] 79% by volume are: |align=left|= partial pressure of oxygen&nbsp; = <font style="vertical-align:-15%;"><math>p_{{\mathrm{O}}_2}</math><
    12 KB (1,983 words) - 11:44, 13 September 2013
  • Partial pressure
    [[Earth's atmosphere|air]], [[oxygen]] 21% by volume and [[nitrogen]] 79% by volume are: |align=left|= partial pressure of oxygen&nbsp; = <font style="vertical-align:-15%;"><math>p_{{\mathrm{O}}_2}</math><
    12 KB (1,987 words) - 13:09, 3 November 2021
  • Greenhouse effect
    ...mon homonuclear diatomic gases, such as [[nitrogen]] (N<sub>2</sub>) and [[oxygen]] (O<sub>2</sub>), do not afford dipole transitions in the infrared and hen ...absorption (such as the absorption of solar [[ultraviolet radiation]] by [[oxygen]] and [[ozone]]).
    5 KB (720 words) - 01:26, 21 December 2009
  • Atomic optical spectrometry
    |[[Natural gas]]/[[oxygen]] 2700-2900<br/> [[Acetylene]]/[[oxygen]] 3050-3150<br/>
    6 KB (888 words) - 13:04, 12 April 2011
  • Electron/Related Articles
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  • Smoke tower
    ...power of the pressurizing fans. With open doors, the fans may also provide oxygen to the fire. <ref>{{citation
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  • Cobalt(II) oxide
    ...aporization Controlled Condensation (LVCC). The proportion of nitrogen to oxygen gas determines the resulting products, for example, a 1:1 mixture will yiel
    5 KB (712 words) - 21:11, 22 February 2009
  • Ester
    ...n]] substitutes instead of an [[alkoxide]]. In all of these reactions an [[oxygen]] in the alcohol's hydroxyl group is retained in the ester linkage<ref name
    2 KB (299 words) - 07:59, 8 June 2009
  • Air pollutant concentrations/Citable Version
    ...rrecting the concentrations to reference conditions of moisture content, [[oxygen]] content or [[carbon dioxide]] content. This article presents methods for ...cified reference temperature and pressure) corrected to 3 volume percent [[Oxygen|O<sub>2</sub>]] in the dry gas. As another example, a regulation might lim
    12 KB (1,764 words) - 10:19, 30 July 2023
  • Tobacco
    ...al of which are the result of [[oxidative stress]] initiated by [[reactive oxygen species]], [[reactive nitrogen species]], and other oxidant constituents of *The reactive oxygen species in cigarette smoke contribute to oxidative stress, upregulation of
    5 KB (678 words) - 08:07, 30 September 2016
  • Alkaline battery
    ...reaction between [[zinc]] and [[manganese dioxide]] (Zn/[[Manganese|Mn]][[Oxygen|O]]<sub>2</sub>). Compared with traditional [[zinc-carbon battery|zinc-carb
    2 KB (310 words) - 06:06, 24 September 2009
  • Helium/Related Articles
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    2 KB (323 words) - 12:57, 15 March 2024
  • Air pollutant concentrations
    ...rrecting the concentrations to reference conditions of moisture content, [[oxygen]] content or [[carbon dioxide]] content. This article presents methods for ...cified reference temperature and pressure) corrected to 3 volume percent [[Oxygen|O<sub>2</sub>]] in the dry gas. As another example, a regulation might lim
    12 KB (1,812 words) - 10:42, 8 April 2024
  • Composting
    ...most every [[environment]] where solid organic materials are supplied with oxygen, moisture and the right temperature. The created compost should be a stable ...an be used for gardening and agricultural purposes. The compost favors the oxygen [[concentration]] in the ground and helps to regulate the water content of
    20 KB (3,189 words) - 09:37, 6 March 2024
  • Allotrope
    Examples of allotropes are the two well-known forms of [[oxygen]]: dioxygen (''O''<sub>2</sub>), which forms roughly one fifth of the atmos
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  • Vitamin A
    ...e]] mechanism in which the 15 & 15' carbons are dioxygenated by molecular oxygen with carbon-carbon bond cleavage. In experiments using tritium (H<sup>3</s
    2 KB (312 words) - 16:06, 28 October 2009
  • Fire
    ...ner dark core and the tip due to convection(rising of heat) and airflow of oxygen.}} ...f an exothermal (heat-producing) [[chemistry|chemical]] reaction between [[oxygen]] and a [[fuel]] source ([[wood]], or [[gasoline]], for example). In this
    12 KB (1,862 words) - 22:03, 12 March 2021
  • Chemical reaction
    *[[Electrolysis]] of water to form [[hydrogen]] (H<sub>2</sub>) and [[oxygen]] (O<sub>2</sub>) [[gas]]es (absorbs electricity) ...of [[chlorophyll]] plus water plus sunlight to form [[carbohydrates]] and oxygen (absorbs light)
    11 KB (1,592 words) - 09:15, 28 September 2013
  • Molecule
    ...nd'''. It may consist of atoms of the same [[chemical element]], as with [[oxygen]] (O<sub>2</sub>), or of different elements, as with [[water (molecule)|wat ...b>CH<sub>2</sub>OH) is always composed of [[carbon]], [[hydrogen]], and [[oxygen]] in a 2:6:1 ratio, i.e., its empirical formula is C<sub>2</sub>H<sub>6</su
    11 KB (1,558 words) - 21:27, 10 November 2020
  • Carbon dioxide/Related Articles
    {{r|Oxygen}}
    3 KB (351 words) - 21:51, 16 August 2010
  • Cryogenics
    ...ent [[gases]] (such as [[helium]], [[hydrogen]], [[neon]], [[nitrogen]], [[oxygen]], and normal [[Earth's atmosphere|air]]) lie below -180 °C while the [[Fr ...ocket fuels. ([[Oxygen]] is used as an [[Redox|oxidizer]] of hydrogen, but oxygen is not, strictly speaking, a fuel.) For example, [[NASA]]'s workhorse [[spa
    7 KB (1,043 words) - 09:37, 6 March 2024
  • Protein structure
    ...protein forms energetically favorable hydrogen bonds between the carboxyl oxygen atoms (end of red bonds) at a particular position (say <b>i</b> for example ...ands interact, favorable hydrogen bonds can be formed between the carboxyl oxygen atoms and the amide group protons, thus stabilizing the structure. Like he
    9 KB (1,340 words) - 22:09, 11 February 2010
  • Harold Griffith
    ...lator design had advanced to a point where the anesthesiologist could keep oxygen flowing to the patient, or the patient would asphyxiate as surely as a game
    2 KB (380 words) - 06:07, 31 May 2009
  • Flue gas
    ...de]] (CO<sub>2</sub>) and water vapor as well as [[nitrogen]] and excess [[oxygen]] remaining from the intake combustion air. It may also contain a small per
    2 KB (391 words) - 15:45, 8 November 2011
  • Hydrogen sulphide
    ...al]] breakdown of [[Organic chemistry|organic matter]] in the absence of [[oxygen]], which is known as [[anaerobic digestion]]. Hydrogen sulphide and oxygen burn to form [[sulphur dioxide]] (SO<sub>2</sub>) and water. In general, h
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  • Henry's law/Citable Version
    :[[oxygen]] (O<sub>2</sub>) : 769.2 L·atm/mol &nbsp; &nbsp; &nbsp; ...sented above is consistent with the example numerical values presented for oxygen, carbon dioxide and hydrogen and with their corresponding dimensional units
    11 KB (1,729 words) - 05:20, 3 September 2013
  • Air
    ...] that [[human]]s and all other [[animal]]s breathe in order to obtain the oxygen needed to sustain [[life]]. |[[Oxygen]]|| align="center"|O<sub>2</sub>|| align="center"| 20.947|| align="center"|
    12 KB (1,867 words) - 08:51, 30 June 2023
  • Thylakoid/Citable Version
    ...lecules in a reaction that also converts water's oxygen atoms to molecular oxygen for release into the atmosphere and for use by the plant. ...ter molecules (H<sub>2</sub>O), releasing protons (H<sup>+</sup> ions) and oxygen into the thylakoid lumen.<br>
    9 KB (1,262 words) - 16:26, 23 September 2013
  • Thylakoid
    ...lecules in a reaction that also converts water's oxygen atoms to molecular oxygen for release into the atmosphere and for use by the plant. ...ter molecules (H<sub>2</sub>O), releasing protons (H<sup>+</sup> ions) and oxygen into the thylakoid lumen.<br>
    9 KB (1,262 words) - 09:17, 11 October 2013
  • Joule-Thomson effect
    ...er hand, [[nitrogen]] has an inversion temperature of 621 K (348 °C) and [[oxygen]] has an inversion temperature of 764 K (491 °C). Hence, the two most abun ...in many [[cryogenic]] applications (e.g., for the production of [[liquid]] oxygen, nitrogen and [[argon]]). Only when the Joule-Thomson coefficient for the g
    7 KB (1,081 words) - 05:42, 4 September 2013
  • Oxidative stress
    ...species' (ROS) and 'oxygen free radicals'.</ref> some of which qualify as 'oxygen free radicals' &mdash; potent 'oxidizing' (viz,. electron-capturing) atoms, ...sult from diminished antioxidant defense, excessive production of reactive oxygen species, or a combination of both.
    31 KB (4,638 words) - 18:09, 29 October 2017
  • Joule-Thomson effect/Citable Version
    ...er hand, [[nitrogen]] has an inversion temperature of 621 K (348 °C) and [[oxygen]] has an inversion temperature of 764 K (491 °C). Hence, the two most abun ...in many [[cryogenic]] applications (e.g., for the production of [[liquid]] oxygen, nitrogen and [[argon]]). Only when the Joule-Thomson coefficient for the g
    7 KB (1,084 words) - 05:41, 4 September 2013
  • Aromatase
    ....<ref>{{cite journal|authors=EA Thompson & PK Siiteri|title=Utilization of oxygen and reduced nicotinamide adenine dinucleotide phosphate by human placental
    3 KB (342 words) - 17:25, 31 May 2009
  • Photosynthesis
    ...ent of net oxygen release to the external environment requires subtracting oxygen utilization by the organism in the process of respiration.}} ...nsumed by non-photosynthesis-capable organisms, whose life depends on that oxygen.<ref name=govindjeekrog04>Govindjee, Krogmann D. (2004) Discoveries in oxyg
    25 KB (3,545 words) - 17:36, 30 September 2018
  • Gangrene
    ...[[antibiotic]]s will be considered necessary, and sometimes, [[hyperbaric oxygen treatment]] is used.[http://www.bbc.co.uk/health/conditions/gangrene1.shtml During treatment, [[hyperbaric oxygen therapy]] may be able to increase the oxygenation of the dying tissue. If
    7 KB (936 words) - 17:11, 13 June 2010
  • Protochlorophyllide
    ...llide reductases for chlorophyll biosynthesis in response to environmental oxygen levels in the cyanobacterium ''Leptolyngbya boryana''. Plant Physiology, 20
    7 KB (1,020 words) - 07:11, 9 September 2009
  • Electromagnetic radiation
    ...[photosynthesis]] this energy is converted into plant life and atmospheric oxygen. The [[fossil fuel]]s that modern society uses&mdash;[[Natural gas|gas]], [
    3 KB (430 words) - 18:04, 8 March 2010
  • Henry's law
    :[[oxygen]] (O<sub>2</sub>) : 769.2 L·atm/mol ...sented above is consistent with the example numerical values presented for oxygen, carbon dioxide and hydrogen and with their corresponding dimensional units
    13 KB (2,084 words) - 05:21, 3 September 2013
  • Antoine-Laurent Lavoisier
    ...er discovery of [[Henry Cavendish]] that the reaction of [[hydrogen]] with oxygen gives pure [[water]] and he gave the correct interpretation of this reactio ...ons, it was known that "mild alkalis" combine with phlogiston (i.e., lose oxygen) to became "caustic alkalis". For instance, limestone (calcium carbonate) b
    19 KB (3,011 words) - 06:49, 5 October 2009
  • DNA synthesis (chemical)
    .... Most phosphoramidites and the initial base are also protected at the 5'-oxygen atom by a dimethoxytrityl group (DMT), although some specialty chemical lin ...|<b>Scheme 1</b>. Dichloroacetic acid in dichloromethane deprotects the 5'-oxygen atom.}}
    12 KB (1,804 words) - 09:16, 6 March 2024
  • Earth's atmosphere
    ...r". On a dry volume basis, it consists of about 78% [[nitrogen]] and 21% [[oxygen]]. The remainder of about 1% contains [[argon]], [[carbon dioxide]] and ver ...he [[ozone layer]] because the solar radiation is increasingly absorbed by oxygen [[molecule]]s in the stratosphere, leading to the formation of ozone. The o
    22 KB (3,363 words) - 19:40, 9 January 2021
  • Alpha particle
    ...laborators bombarded [[nitrogen]] with &alpha;-particles, changing it to [[oxygen]], producing in 1919 the first artificial nuclear transmutation.
    3 KB (412 words) - 20:02, 20 September 2021
  • Anion
    ...omprised of a group of atoms, often containing the electronegative element oxygen. Some anions, such as the cyanide anion, are poisonous. Anions can evolve
    3 KB (610 words) - 09:37, 6 March 2024
  • Polyatomic ion
    * A Hydroxide ion is made of one oxygen ion and one hydrogen ion: its chemical formula is (OH)<sup>-</sup>. It has ...being the "base" name, in which case the addition of a per- prefix adds an oxygen. Changing the -ate suffix to -ite will reduce the oxygens by one, and keep
    9 KB (1,524 words) - 10:20, 13 November 2007
  • Field medicine
    ...ss is [[permissive hypotension]], where just enough fluid is given to keep oxygen flow to the brain, but deliberately not restoring the systolic blood pressu
    3 KB (429 words) - 10:42, 8 April 2024
  • COVID-19
    ...3%, a ratio of arterial partial pressure of oxygen to fraction of inspired oxygen <300 mm Hg, and/or lung infiltrates >50% within 24 to 48 hours), and 5% as ...nces of this appear to be that the lungs are left unable to provide enough oxygen to maintain life. It appears that those who die with covid-19 often do so b
    13 KB (1,908 words) - 10:15, 31 July 2023
  • Nitrogen/Related Articles
    {{r|Oxygen}}
    3 KB (457 words) - 12:49, 15 March 2024
  • Hydrogen bond
    ...en]] [[atom]]. The hydrogen atom must be attached to one of the elements [[oxygen]], [[nitrogen]] or [[fluorine]], all of which are strongly [[Electronegativ ...esent, as is the case in liquid water, more bonds are possible because the oxygen of one water molecule has two lone pairs of electrons, each of which can fo
    12 KB (1,827 words) - 17:00, 7 March 2024
  • Photobiology
    * Quenching of Singlet Oxygen by a Carotenoid–Cyclodextrin Complex: The Importance of Aggregate Formati
    4 KB (478 words) - 15:45, 3 August 2012
  • Citric acid cycle
    ...f central importance in all living [[cell (biology)|cell]]s that utilize [[oxygen]] as part of [[cellular respiration]].<ref name="isbn0-7167-3051-0">{{cite ...so that the cycle can continue. The citric acid cycle itself does not use oxygen, but oxidative phosphorylation does.
    8 KB (1,089 words) - 02:01, 2 June 2009
  • Microcystis
    ...tion process as the bloom dies. In such situation, there may not be enough oxygen remaining in the water to support fish or shellfish in the vicinity. Furthe
    7 KB (1,042 words) - 20:35, 9 December 2022
  • Electrolyte
    ...lectrolyte connects the plates electrically while keeping the hydrogen and oxygen fuel gases separated.
    3 KB (486 words) - 04:36, 7 October 2009
  • Disseminated intravascular coagulation
    ...thrombi interfere with the ability of the blood to reach cells and deliver oxygen, and may lead to failure of multiple organs.
    3 KB (393 words) - 14:20, 8 March 2024
  • Microbial metabolism
    ...s discussed below, the use of [[terminal electron acceptor]]s other than [[oxygen]] has important biogeochemical consequences. ...can use fermentation under anaerobic conditions and [[respiration]] when [[oxygen]] is present. These organisms are [[facultative anaerobe]]s. To avoid the
    29 KB (4,037 words) - 02:19, 7 March 2024
  • Atmosphere
    ...le, the atmosphere of the [[Earth]] is composed of 78% [[nitrogen]], 20% [[oxygen]], 1% [[argon]] and trace amounts of other elements. On the other hand, the
    3 KB (509 words) - 11:48, 2 February 2023
  • Head and neck cancer
    ...otocols using adjuvant [[hyperthermia]], [[phototherapy]] and [[hyperbaric oxygen]]. [[Bleomycin]] and [[carboplatin]] are core drugs for palliative chemothe
    3 KB (445 words) - 15:57, 28 June 2010
  • Deep lake water cooling
    ...ensest. At this point all the water in the lake can mix, replenishing the oxygen at the lake's bottom.
    3 KB (518 words) - 15:21, 8 April 2023
  • Drugs banned from the Olympics/Citable Version
    ...re competition. The resulting unnatural level of red blood cells improves oxygen transport and athletic endurance. Certain [[peptide]] [[hormone]]s increase bulk, stength, and oxygen-carrying red blood cells. The peptide hormones [[erythropoietin]] (EPO), [
    11 KB (1,234 words) - 07:26, 27 August 2013
  • World Anti-Doping Agency
    ...re competition. The resulting unnatural level of red blood cells improves oxygen transport and athletic endurance. Certain [[peptide]] [[hormone]]s increase bulk, stength, and oxygen-carrying red blood cells. The peptide hormones [[erythropoietin]] (EPO), [
    11 KB (1,231 words) - 15:55, 12 September 2019
  • John Dalton
    ...ratios of small integer (whole) numbers (e.g., 2-to-1 for the quantity of oxygen in carbon dioxide to that in carbon monoxide). ...of atomic mass of two oxygen atoms) in carbon dioxide. Those two masses of oxygen in the two compounds with a fixed mass of carbon relate to each other in th
    26 KB (4,140 words) - 06:36, 6 March 2024
  • Heat of combustion
    ...the combustion is typically that of a [[hydrocarbon]] fuel reacting with oxygen derived from atmospheric air to form [[carbon dioxide]], [[water]] and heat ...hiometric combustion means that the combustion products do not contain any oxygen (i.e., there was no excess of combustion air during the combustion).
    13 KB (1,833 words) - 05:42, 19 October 2013
  • Microcystis aeruginosa
    ...tion process as the bloom dies. In such situation, there may not be enough oxygen remaining in the water to support fish or shellfish in the vicinity. Furthe
    7 KB (1,111 words) - 22:47, 26 October 2013
  • Absorption (chemistry)
    ...reversible or irreversible. The physical absorption of small amounts of [[oxygen]] in water can be reversed by heating the water. The reactive absorption of
    4 KB (618 words) - 01:55, 14 March 2024
  • Treponema pallidum
    ...e. It does however have [[NADH oxidase]] which is the enzyme that utilizes oxygen in the organism.
    11 KB (1,712 words) - 22:05, 7 February 2010
  • Click chemistry
    ...amine, propargyl halides and an azide together in water, under atmospheric oxygen with a copper catalyst.<ref>{{cite journal|title=Efficient synthesis of 1,4
    3 KB (437 words) - 14:16, 6 February 2010
  • Organosilicon
    ...those of carbon to oxygen. The polarization in this bond increases towards oxygen. Examples are the [[Siloxane]]s and the polymeric [[polysiloxane]]s. [[Sily
    9 KB (1,169 words) - 02:10, 27 October 2013
  • Pilobolus crystallinus
    ...he air.<ref>[http://www.jstor.org/pss/3793073 Bourrett, J.A. "Influence Of Oxygen On Tip Growth Of Pilobolus Crystallinus Hyphae". Jastor 1985.]</ref>
    14 KB (2,297 words) - 00:20, 29 October 2013
  • Abraham Maslow
    ...r&ndash;order needs. Even within the level, there was a hierarchy; lack of oxygen is more basic than thirst.
    4 KB (544 words) - 16:40, 23 May 2010
  • Phosphoric acid
    ...>P=O, which more clearly indicates that each of the protons is bound to an oxygen atom.
    4 KB (532 words) - 23:27, 20 February 2010
  • Biomass
    ...ss) at high [[temperature]]s with reagent gases (namely, [[steam]], pure [[oxygen]] and/or [[air]]) to produce a mixture of [[carbon monoxide]] (CO) and [[hy ...of carbon-containing material (e.g., coal or biomass) through which steam, oxygen and/or air flow upward. Although commonly referred to as a fixed bed gasif
    17 KB (2,437 words) - 02:47, 21 March 2024
  • Sudden cardiac death
    *Indication of poor oxygen flow to the brain, even with scores of 0-2, have very poor survival even wi
    3 KB (468 words) - 20:20, 7 May 2012
  • Radiation chemistry
    ...'Radiation Physics and Chemistry'', 2002, '''65'''(4-5), 461-465</ref>If [[oxygen]], [[acetone]], [[nitrous oxide]], [[sulfur hexafluoride]] or [[nitrobenzen ...orm respectively hydrogen atoms and dioxygen radical anions. The fact that oxygen changes the radiation chemistry might be one reason why oxygenated tissues
    12 KB (1,939 words) - 12:51, 15 March 2024
  • Noctiluca scintillans
    ...t is thought to be derived from chlorophyll, becomes oxidized by molecular oxygen, with the help of the catalyst luciferase, to produce an inactive oxylucife ...water temperature during bloom periods, as well as a decrease of dissolved oxygen during blooms. Phosphate, nitrate and silicate levels increased during bl
    9 KB (1,244 words) - 02:43, 20 March 2014
  • Mycobacterium tuberculosis
    ...smotic lysis]], [[acidic]] and [[alkaline]] compounds, and protection from oxygen [[free radicals]]. other factors that add to the survivability of M. Tuberc M. Tuberculosis generally resides in the lungs where oxygen is more readily available. However, if the bacteria enters the blood stream
    8 KB (1,214 words) - 15:31, 30 October 2013
  • Angina
    ...thought to be provoked by a transient stressful situation during which the oxygen requirements of the myocardium exceed that supplied by the [[coronary arter
    4 KB (522 words) - 00:49, 31 January 2009
  • Respiratory emergencies
    ...not dead until you're warm and dead". Children, especially, may go into an oxygen-conserving [[mammalian diving reflex]] when submerged in cold water; there ...[[ventilator]]. When the patient is breathing ineffficiently, supplemental oxygen may be adequate, or it may be necessary to paralyze the respiratory muscles
    15 KB (2,125 words) - 17:43, 11 June 2010
  • Hypothermia
    ...decrease. The Q<sub>10</sub> of most body reactions, including total body oxygen consumption, is between 2 and 3. ...clude peritoneal and thoracic lavage with warmed fluids; warmed humidified oxygen is routine. There remains considerable argument as to the optimal rate of
    10 KB (1,348 words) - 14:04, 1 April 2024
  • Rain garden
    ...erheating in some aquatic ecosystems as well as the reduction of dissolved oxygen (DO). Stormwater runoff flowing off hard or compacted surfaces during rain
    4 KB (532 words) - 17:00, 12 October 2020
  • Sparrows Point
    ...industry, including a rise in imports and a move toward the use of simpler oxygen furnaces and the recycling of scrap, led to a decline in the use of the Spa
    4 KB (548 words) - 19:48, 14 November 2007
  • Metabolic equivalent
    ...accessdate=2008-09-03}}</ref> More specifically, 1 MET is resting or basal oxygen consumption (VO2) of a 70-kg, 40-year-old man. One MET is 3.5 mL per kg per
    4 KB (530 words) - 09:35, 16 December 2009
  • Carbon monoxide
    Carbon monoxide consists of one [[carbon]] [[atom]] and one [[oxygen]] atom. It is the simplest member of the class of inorganic compounds known ...of carbon-containing substances. It is produced when there is not enough [[oxygen]] to form carbon dioxide, such as when operating a stove or an [[Gasoline/D
    17 KB (2,453 words) - 09:37, 6 March 2024
  • Hund's rules
    * The ground state oxygen atom, (1''s'')<sup>2</sup>(2''s'')<sup>2</sup>(2''p'')<sup>4</sup>, (a two-
    4 KB (593 words) - 09:31, 25 October 2009
  • Triazole
    ...amine, propargyl halides and an azide together in water, under atmospheric oxygen with a copper catalyst.<ref>{{cite journal|title=Efficient synthesis of 1,4
    3 KB (477 words) - 13:01, 11 June 2009
  • Mesenteric ischemia
    ...llary oxygen levels. Use during Aortic Aneurysm repair detected when colon oxygen levels fell below sustainable levels, allowing real-time repair. In several
    11 KB (1,428 words) - 09:49, 30 September 2009
  • Glycolysis
    ...n the organism and the conditions, most notably the presence or absence of oxygen and other external electron acceptors. ...NADH. NADH is ultimately oxidized by an [[electron transport chain]] using oxygen as final electron acceptor to produce a large amount of ATP via the action
    21 KB (3,063 words) - 02:03, 2 June 2009
  • Classification of rigid rotors
    Examples of linear molecules are obviously the diatomics such as [[oxygen]] (O=O), [[carbon monoxide]] (C≡O), and [[nitrogen]] (N≡N). But also ma
    5 KB (704 words) - 05:59, 26 September 2007
  • Ascorbic acid
    Exposure to oxygen, metals, light and heat destroy ascorbic acid, so it must be stored in dark ...bate first to monodehydroascorbate and then dehydroascorbate. The reactive oxygen species are reduced to water while the oxidized forms of ascorbate are rela
    13 KB (1,893 words) - 10:07, 28 February 2024
  • Hydroxyethyl starch
    It has no oxygen-carrying capacity. From a colloidal standpoint, [[dextran 70]] has comparab
    4 KB (492 words) - 23:15, 21 December 2010
  • Metabolism
    ...chamber. [[Jan Ingenhousz]] extended Priestley's experiments to show that oxygen was produced when light was cast on the plant, while [[Jean Senebier]] show ...he electron donor through a process called [[photolysis]], that releases [[oxygen]] gas as a waste product.
    14 KB (2,059 words) - 12:47, 6 September 2013
  • Nitrogen
    ...is only slightly soluble in water. At high temperature it combines with [[oxygen]] to form [[NOx]], a generic designation for the mono-nitrogen oxides NO an
    3 KB (539 words) - 18:53, 5 January 2021
  • Metabolism/Citable Version
    ...chamber. [[Jan Ingenhousz]] extended Priestley's experiments to show that oxygen was produced when light was cast on the plant, while [[Jean Senebier]] show ...he electron donor through a process called [[photolysis]], that releases [[oxygen]] gas as a waste product.
    14 KB (2,063 words) - 12:41, 6 September 2013
  • Water
    '''Water''' is a [[chemical compound]] composed of [[hydrogen]] and [[oxygen]] and has the [[chemical formula]] (H<sub>2</sub>O or HOH). At typical room ...of eight electrons. Two hydrogen atoms can thus share electrons with one oxygen atom, filling their respective outermost electron shells to capacity, achie
    24 KB (3,756 words) - 01:56, 29 April 2021
  • Orbital hybridisation
    ...e molecules, but for molecules made up from [[carbon]], [[nitrogen]] and [[oxygen]] (and to a lesser extent, [[sulphur]] and [[phosphorus]]) the hybridisatio ...with the valence bond theory as well from the electronic configuration of oxygen), which means there are four such 'elements' on O. The model molecule is, t
    14 KB (2,154 words) - 09:32, 12 November 2007
  • Genesis probe
    ...inal composition and subsequent formation of the planets. Samples of solar oxygen had previously been extracted from lunar soil, as the lack of an atmosphere
    4 KB (653 words) - 09:37, 8 August 2023
  • Matter (chemistry)
    ...th a different set of properties, as, for example, when hydrogen atoms and oxygen atoms transform into liquid water, or when liquid water transforms into sol ...that involves [[electron]] sharing between the two hydrogen atoms and the oxygen atom, and refer to the unit particle as a [[molecule]]. Chemists express qu
    14 KB (2,271 words) - 17:17, 9 October 2013
  • Inorganic chemistry
    ...r) , as well as molecular gases such as [[hydrogen]] (H<sub>2</sub>) and [[oxygen]] (O<sub>2</sub>). ...&nbsp; (Hydrogen peroxide spontaneously decomposes into water and gaseous oxygen.)
    13 KB (1,921 words) - 09:37, 6 March 2024
  • Supernova
    ...urn each element synthesised in turn, hydrogen, helium, then [[carbon]], [[oxygen]], [[silicon]] and so forth until they are left with [[iron]].
    4 KB (664 words) - 16:43, 28 November 2010
  • Nitrogen cycle
    ...he Biosphere. PhysicalGeography.net Fundamentals eBook.</ref> and prevents oxygen from [[combustion]], the air-born nitrogen is generally not useful to livin |quote=Nitrogen will only react with oxygen in the presence of high temperatures and pressures found near lightning bol
    21 KB (3,189 words) - 15:35, 3 September 2010
  • Paratroop
    ...jumper departs the aircraft, often at a sufficiently high altitude to need oxygen, but delays opening the parachute until close to the ground. A properly tra
    4 KB (627 words) - 16:23, 30 March 2024
  • Nitroglycerin
    ...els to the heart ([[vasodilation]]), thereby increasing the blood flow and oxygen supply to the heart. It produces a fall in blood pressure and an increase i
    4 KB (598 words) - 08:39, 8 June 2009
  • Emergency medical service
    | title = Extending the golden hour of hemorrhagic shock tolerance with oxygen plus hypothermia in awake rats. An exploratory study
    4 KB (620 words) - 23:15, 3 July 2009
  • Chemical elements
    Familiar '''chemical elements''' include [[oxygen]], [[copper]], [[gold]], and [[mercury]]&mdash;among 94 naturally occurring ...e for each corresponding chemical element. The chemical elements, [[Oxygen|oxygen]] (Z=8), [[copper]] (Z=29), [[gold]] (Z=79), and [[mercury]] (Z=80), and al
    39 KB (5,559 words) - 09:16, 6 March 2024
  • Vibrio fischeri
    ...th various species of fish and squids.<ref>Ruby, E. G., McFall-Ngai, M. J. Oxygen-utilizing reactions and symbiotic colonization of the squid light organ by ...ases. However, all bioluminescence reactions require the use of molecular oxygen <ref>Widder, E. A. "Marine Bioluminescence." Harbor Branch Oceanographic In
    23 KB (3,399 words) - 04:11, 16 February 2010
  • Uracil
    ...pairs with [[adenine]] (A) in RNA. In an adenine-uracil base pair, the O4 oxygen atom of uracil forms a hydrogen bond with one of the amino protons (H61) of
    4 KB (593 words) - 13:27, 19 June 2008
  • Chromobacterium violaceum
    | [[Oxygen]] Req. Anaerobic – when oxygen availability is scarce, ''C. violacum'' decreases pyruvate dehydrogenase ac
    8 KB (1,094 words) - 04:30, 16 December 2013
  • Wood
    ...o temperatures similar to those found in wood fires, but with insufficient oxygen to burn. This causes the water in the wood to evaporate, and some of the mo
    4 KB (724 words) - 23:40, 21 July 2020
  • Periodic table of elements
    ...ide of the molecule being slightly more positively charged ∆+, whereas the oxygen side is slightly more negatively charged 2∆&minus;. Therefore water is a ...y 8 or a multiple of 8, e.g., Li, Na, K; or [[magnesium]] (Mg), Sr, Ba; [[oxygen]],[[sulphur]],[[selenium]], [[tellurium]]. Until then little notice was tak
    13 KB (2,075 words) - 09:16, 6 March 2024
  • Avogadro's number
    ...es, their volumes are also in simple proportions. For instance, 1 liter of oxygen gas combines with 2 liters of hydrogen gas to form 2 liter of gaseous water ...lton, who had assumed earlier that water is formed from a molecule each of oxygen and hydrogen, rejects Avogadro's and Gay-Lussac's laws.
    19 KB (2,947 words) - 20:20, 27 December 2020
  • Steel
    ...s rapidly beyond 800 °C, it is important that smelting take place in a low-oxygen environment. Unlike copper and tin, liquid iron dissolves carbon quite rea ...ess of [[basic oxygen steelmaking]], developed in the [[1950s]], and other oxygen steelmaking processes.
    19 KB (2,947 words) - 09:16, 6 March 2024
  • Chemistry/Citable Version
    ...ater]] (H<sub>2</sub>O) from two gases: [[hydrogen]] (H<sub>2</sub>) and [[oxygen]] (O<sub>2</sub>). Some chemical interactions require energy: the substance ...or undergoes rapid [[oxidation]] because it can react spontaneously with [[oxygen]] in a [[chemical reaction]] above a certain [[temperature]].
    22 KB (3,142 words) - 09:01, 4 May 2024
  • Proteus mirabilis
    ...oxygen]] for survival and reproduction and may even die in the presence of oxygen. ''Proteus mirabilis'' are found free-living in moist habitats, such as [wa
    10 KB (1,444 words) - 03:49, 2 December 2010
  • Photobacterium phosphoreum
    ...203.htm]. It is a [[facultative anaerobe]] that can grow in the absence of oxygen when appropriate electron-acceptors are present. It doesn’t [[denitrify]] ...zes the reaction and uses reduced [[flavin]] [[mononucleotide]], molecular oxygen, and a long-chain aldehyde as substrate” (Willey, Sherwood and Woolverton
    14 KB (2,056 words) - 03:25, 16 February 2010
  • Chemical symbol/Catalogs
    <tr><td> O <td> [[Oxygen]] <td align="right"> 8
    8 KB (1,135 words) - 09:15, 6 March 2024
  • Chemistry
    ...ater]] (H<sub>2</sub>O) from two gases: [[hydrogen]] (H<sub>2</sub>) and [[oxygen]] (O<sub>2</sub>). Some chemical interactions require energy: the substance ...or undergoes rapid [[oxidation]] because it can react spontaneously with [[oxygen]] in a [[chemical reaction]] above a certain [[temperature]].
    23 KB (3,309 words) - 09:41, 6 March 2024
  • Atomic electron configuration
    <tr><td>8 <td>O <td>[[Oxygen]] <td bgcolor="#D0D0D0">2 <td bgcolor="#D0D0D0">2<td>4
    21 KB (3,868 words) - 09:15, 6 March 2024
  • Artificial respiration
    ...breathing or have respiratory insufficiency to increase their intake of [[oxygen]] (O<sub>2</sub>) and excretion of [[carbon dioxide]] (CO<sub>2</sub>)."<re ...-mask-valve device, minimally on room air and preferably with supplemental oxygen. The mask may be non-rebreathing or partial rebreathing.
    16 KB (2,193 words) - 08:25, 11 March 2011
  • Deep foundation
    ...two elements are needed: water and oxygen. Below the groundwater level, oxygen is lacking even though there is ample water. Hence, timber tends to last f
    11 KB (1,764 words) - 19:37, 17 May 2009
  • Emergency Medical Technician
    ...te [[recompression chambers]] or to work as part of a medical [[hyperbaric oxygen team]]. [[Combat search and rescue]] personnel often are certified at the
    5 KB (714 words) - 15:22, 8 April 2023
  • Beta oxidation
    ...ly in peroxisomes, converts the [[hydrogen peroxide]] into [[water]] and [[oxygen]].
    5 KB (813 words) - 16:55, 8 May 2010
  • Neuroimaging
    Active regions in neural tissue show an increased blood flow because of the oxygen requirements of neural cells. This results in a higher oxygenation level in
    5 KB (764 words) - 13:40, 28 July 2010
  • Computed tomography
    ...ort-lived positron-emitting radionuclides (such as carbon-11, nitrogen-13, oxygen-15 and fluorine-18) to measure cell metabolism. It has been useful in study
    6 KB (785 words) - 02:22, 15 May 2010
  • Atomic mass
    ...align="left "> 8 <td> [[Oxygen|O]] <td width="5%" > {{Atomic mass|Oxygen}} <td width="15%"> <td align="left "> 45 <td> [[Rhodium|Rh]] <td wid
    18 KB (2,483 words) - 09:47, 6 March 2024
  • Serratia marcescens
    Serratia marcescens are facultative anaerobes, which means they prefer oxygen as a source but can do with out. The red pigment characteristic to the bact ...ling. This process may protect the cell by limiting production of reactive oxygen compounds. Other possible functions for prodigiosin as a mediator of cell d
    11 KB (1,641 words) - 05:50, 15 September 2013
  • Halobacterium volcanii
    ...organotrophs, they need carbon as their energy source in addition to using oxygen for respiration. <ref name=five>Haloferax volcanii DS2. (n.d.). Halophilic
    12 KB (1,879 words) - 17:42, 16 February 2010
  • Sulfuric acid
    The lead-chamber process uses sulfur dioxide, oxygen, nitric acid and water vapor are introduced into a lead-lined chamber. Whit
    6 KB (957 words) - 05:47, 12 September 2013
  • Ginkgo
    ...roblems, [[impotence]], [[circulatory system|circulatory]] problems, and [[oxygen]] deprivation<ref name=Gorman1997 />.
    5 KB (702 words) - 10:08, 28 February 2024
  • Deinococcus radiodurans
    ...eak a chemical bond (such as in a DNA strand) and then act like an atom of oxygen and bind with another atom, ultimately enabling free radicals to cause gene ...well as enzymes like superoxide dismutase and catalase that defend against oxygen toxicity, and a distinctive, complex outer membrane made up of three or mor
    10 KB (1,441 words) - 21:57, 14 February 2010
  • Clostridium tetani
    ...gh sporulation when survival becomes difficult, usually in the presence of oxygen. In its vegetative state, the bacterium is sensitive to external elements, ...ion or burn site, germination of ''C. tetani'' in dead body cells (lacking oxygen) leads to infection and subsequent inflammation. Toxins are produced during
    14 KB (2,057 words) - 07:47, 11 October 2013
  • Claus process
    ...perate at [[Stoichiometry|sub-stoichiometric]] conditions to prevent any [[oxygen]] (O<sub>2</sub>) from getting into the reactors which can damage the catal ...on furnace temperatures and/or reduce the gas volume to be processed, pure oxygen may be used to enrich the reaction furnace combustion air.
    13 KB (1,990 words) - 09:37, 6 March 2024
  • Mole (unit)
    ...of H is 1.00794, has the mass 2&times;1.00794 = 2.01588 gram. A mole of [[oxygen]], standard atomic weight 15.9994, has the mass 31.9988 gram. <ref>[http://
    5 KB (914 words) - 14:09, 2 February 2023
  • Terpene
    ...isoprene'' unit. Isoprene itself is considered the only hemiterpene, but oxygen-containing derivatives such as [[prenol]] and [[isovaleric acid]] are hemit
    6 KB (865 words) - 04:25, 14 September 2013
  • Coal
    ...in every respect. In general, coal consists of [[carbon]], [[hydrogen]], [[oxygen]], [[nitrogen]], [[sulphur]] and [[mineral]] matter (including compounds of ...when coal (or any other substance) undergoes complete [[combustion]] with oxygen.
    20 KB (3,084 words) - 09:16, 6 March 2024
  • Helicobacter pylori
    ...bacterium, meaning that it requires oxygen at lower levels compared to the oxygen level in the atmosphere. It can use hydrogenase to obtain energy. Hydrogena
    12 KB (1,766 words) - 01:02, 2 November 2013
  • Anemia of chronic disease
    ...for their massive amounts of [[hemoglobin]] which allow them to transport oxygen.
    7 KB (1,001 words) - 09:30, 14 November 2011
  • Flue gas desulfurization
    ...O<sub>2</sub>). This happens under normal conditions of temperature and of oxygen present in the flue gas. However, there are circumstances under which this ...rther oxidized to [[sulfur trioxide]] (SO<sub>3</sub>). Actually, too much oxygen is only one of the ways that SO<sub>3</sub> is formed. Gas temperature is a
    17 KB (2,700 words) - 07:31, 20 April 2024
  • Smog
    ::'''nitrogen oxide + oxygen <math>\rightarrow</math> nitrogen dioxide''' ...y from sunlight to produce gaseous nitrogen oxide and atomic oxygen (O, an oxygen radical). This process is referred to as ''photolysis'' and hence the term
    32 KB (4,922 words) - 07:33, 20 April 2024
  • Sympathetic nervous system
    * Dilates bronchioles of the lung, which allows for greater alveolar oxygen exchange.
    6 KB (767 words) - 17:34, 10 February 2024
  • Critical care
    ...|author=Cane RD, Shapiro BA, Templin R, Walther K |title=Unreliability of oxygen tension-based indices in reflecting intrapulmonary shunting in critically i ;Alveolar-arterial oxygen (A-a) gradient (alveolar-arterial oxygen difference - AVO<sub>2</sub>D)
    48 KB (6,766 words) - 00:54, 21 October 2013
  • Chronic obstructive pulmonary disease
    ...uish decolorization usually in the lips and fingers) caused by a lack of [[oxygen]] in the blood. In extreme cases it could lead to [[cor pulmonale]] due to ...se in specific conditions. There are safety concerns about the underuse of oxygen in patients with critical illness and its overuse in conditions such as .."
    48 KB (6,593 words) - 11:52, 2 February 2023
  • Myocardial infarction
    ...e ([[Ischemia]]) and the hard-working cardiac muscle cells are deprived of oxygen and nutrients, at least some of the affected muscle cells may be impaired b # "increase myocardial oxygen requirements, such as fever, tachycardia, or thyrotoxicosis"
    22 KB (2,922 words) - 09:45, 21 February 2015
  • Lactococcus lactis
    ...ains of ''L. lactis'' are capable of growing under aerobic conditions. The oxygen and a heme source present new traits, such as increased growth index, resis
    11 KB (1,702 words) - 20:47, 8 November 2013
  • Hydrogen
    ...er elements, to [[carbon]] in [[carbohydrates]] and [[hydrocarbons]], to [[oxygen]] in [[water]], and to [[nitrogen]] in [[ammonia]]. Measured in number of a ...ttery). The formation of gaseous hydrogen is at the cathode, while gaseous oxygen is formed at the the anode. This process, which requires electrical power t
    20 KB (3,081 words) - 21:57, 31 March 2022
  • Acetylcholine
    ...sub>. This structure is reflected in the systematic name, ''2-([[acetyl]][[oxygen|oxy]])-[[Nitrogen|N,N,N]]-[[3 (number)|tri]][[methyl]][[ethane|ethan]][[ami
    12 KB (1,602 words) - 06:08, 8 June 2009
  • Interstellar matter
    ...d sulphur), neutral elements (most of which is hydrogen, helium, nitrogen, oxygen, neon and argon) and condensed dust grains (primarily aluminium, calcium ma
    7 KB (987 words) - 10:12, 30 May 2009
  • Aspergillus niger
    ...gen. Although the process of how VHB is able to fix the problem of limited oxygen are not concise yet, but based on the results obtained from the study, it i
    23 KB (3,427 words) - 06:30, 23 January 2011
  • Felix Haurowitz
    ...ction of Hemin and Hemoglobin by the Action of Unsaturated Fatty Acids and Oxygen" appeared in the ''J. Biol. Chem.'' 1941, 140: 353-359.
    7 KB (1,018 words) - 18:51, 8 April 2009
  • Caenorhabditis elegans
    ...grow it requires an humid environment, ambient temperature and atmospheric oxygen.<ref name=Hope/> C. elegan feeds on diverse microorganism one such exampl .... elegans had shown an increase in levels of protein carbonyl and reactive oxygen species similar to patients with alzheimers disease. These increases in le
    13 KB (2,081 words) - 05:38, 7 February 2010
  • Bacillus anthracis
    ...formation of spores. The process of [[spore]] formation is dependent on [[oxygen]] and thus does not occur in intact corpse. Once spores are formed they are ...result in endospore formation, this process must occur in the presence of oxygen.
    13 KB (2,023 words) - 10:26, 27 March 2024
  • Trauma induced coagulopathy
    ...s with [[packed red blood cells]], for example, are efficient in restoring oxygen-carrying capacity, but do not provide the coagulation components present in
    6 KB (818 words) - 16:34, 21 December 2010
  • Astrobiology
    ...ctors will help to prevent the possibility of false positive detections of oxygen biosignatures. ...ely detecting life on a planet that has not developed a biogenic source of oxygen is fraught with unknowns. What chemical species and spectral signatures sho
    42 KB (6,267 words) - 20:40, 8 June 2010
  • Vibrio harveyi
    ...environments with oxygen, but are able to survive in environments lacking oxygen as well.<ref name=two />
    13 KB (2,004 words) - 04:09, 16 February 2010
  • Diabetic neuropathy
    ...kening]] and [[endothelial hyperplasia]], which contribute to diminished [[oxygen tension]] and [[Hypoxia (medical)|hypoxia]]. [[Neuronal ischemia]] is a wel ...in turn causes a decrease in [[glutathione]] and an increase in reactive [[oxygen radical]]s. The pathway is dependent on the enzyme [[aldose reductase]]. In
    23 KB (3,280 words) - 09:09, 1 March 2024
  • Phosphorus/Citable Version
    ...</sub> is like that of P<sub>4</sub>O<sub>6</sub> with the addition of one oxygen bond to each phosphorus atom via a double bond and protruding away from the Phosphorous oxyacids can have acidic protons bound to oxygen atoms and nonacidic protons which are bonded directly to the phosphorus ato
    19 KB (2,983 words) - 05:36, 6 March 2024
  • Phosphorus
    ...</sub> is like that of P<sub>4</sub>O<sub>6</sub> with the addition of one oxygen bond to each phosphorus atom via a double bond and protruding away from the Phosphorous oxyacids can have acidic protons bound to oxygen atoms and nonacidic protons which are bonded directly to the phosphorus ato
    19 KB (2,982 words) - 05:36, 6 March 2024
  • Artemisinin
    ...yze the decomposition of artemisinin's peroxide moiety, releasing reactive oxygen species which can ultimately result in cancer cell death. Apart from this,
    6 KB (877 words) - 21:22, 30 December 2009
  • Leptin
    ...eptin also increases energy expenditure by increasing body temperature and oxygen consumption
    6 KB (972 words) - 22:39, 17 September 2012
  • Evolution of cetaceans
    ...its ears and premolars, in the density of its limb bones and in the stable-oxygen-isotope composition of its teeth. We also show that a major dietary change ...its ears and premolars, in the density of its limb bones and in the stable-oxygen-isotope composition of its teeth. We also show that a major dietary change
    14 KB (2,189 words) - 12:14, 14 February 2024
  • V-2
    ...be detected and bombed by the Alies. On the other hand, it required liquid oxygen and alcohol, which were much harder to supply than the simple petroleum-bas
    6 KB (917 words) - 08:26, 4 May 2024
  • Penguin
    ...is aided by a large body size because, for every increase in size, more [[oxygen]] storage capacity is granted than increased metabolic expenditure is requi
    7 KB (1,017 words) - 10:13, 5 March 2024
  • H-60 helicopter
    ...abin area, integrated Forward Looking Infrared Radar (FLIR) and an onboard oxygen generating system."<ref>{{citation
    6 KB (883 words) - 02:18, 7 April 2024
  • Erythropoietin
    ...by the [[liver]]. The rate of Epo synthesis and secretion depends on local oxygen concentrations; [[hypoxia]] is the main stimulus for Epo production. The se ...ropoietin is sometimes used by nonanemic athletes to increase their body's oxygen-carrying capacity and thus gain an unfair advantage in competition. Besides
    13 KB (1,859 words) - 17:44, 10 February 2024
  • Meme
    ...this planet until the evolution of plants had paved the way (creating the oxygen-rich atmosphere and ready supply of convertible nutrients), so the evolutio
    7 KB (1,018 words) - 22:45, 13 June 2010
  • Solenoid (physics)
    ...Diamagnetic (e.g., gaseous [[nitrogen]]) and paramagnetic (e.g., gaseous [[oxygen]]) materials have &mu;<sub>r</sub>&ndash;values very close to unity. Ferro
    8 KB (1,392 words) - 07:40, 3 December 2009
  • Hannah James
    ...so tight that when I took it off, I took a huge breath in and got so much oxygen that I felt really dizzy and almost passed out because I was just sort of s
    8 KB (1,152 words) - 12:58, 18 February 2024
  • Modalities
    ...charcoal, alumina or molecular sieves. For GLC, polymers based on silicon-oxygen-silicon backbone are mostly commonly used for adsorbents.
    7 KB (1,144 words) - 04:16, 7 October 2013
  • Organic chemistry
    ...], which may contain any number of other elements, such as [[nitrogen]], [[oxygen]], [[halogens]], and more rarely [[phosphorus]] or [[sulphur]] <ref>Robert ...se based on carbon in silicones the Si atoms are joined indirectly through oxygen links.
    21 KB (3,106 words) - 09:10, 5 May 2024
  • Fatty acid metabolism
    ...ly in peroxisomes, converts the [[hydrogen peroxide]] into [[water]] and [[oxygen]]. Acyl-CoA entry into the peroxissome does not require [[carnitine]].
    7 KB (1,029 words) - 16:31, 25 March 2010
  • Fossilization (palaeontology)
    ...nce of oxygen. In such conditions, anaerobic bacteria consume hydrogen and oxygen, therefore concentrating carbon. As long as the sediment or rock is kept in * The organism should be buried in anaerobic conditions, because oxygen encourages the presence of bacteria which decompose organic material.<ref n
    30 KB (4,480 words) - 00:55, 24 October 2013
  • B-29 Superfortress (bomber)
    ..., most of whom suffocated in bomb shelters when the firestorm consumed the oxygen. One fourth of the buildings in the entire city were destroyed.<ref> Craven
    6 KB (898 words) - 17:36, 6 March 2024
  • NMR spectroscopy/Catalogs/Magnetic nuclei
    <tr> <td>[[Oxygen]]-17</td> <td><sup>17</sup>O</td> <td>-5/2</td> <td>1.07E-05</td>
    12 KB (1,860 words) - 09:15, 6 March 2024
  • Tree (plant)
    .... They are also important for a healthy environment, in that they produce oxygen, their presence may slow flood waters, prevent soil erosion, absorb carbon
    7 KB (1,032 words) - 09:28, 30 October 2023
  • Gasoline/Citable Version
    ...r vehicles. They convert the NOx emissions into gaseous [[nitrogen]] and [[oxygen]]. They also convert any gaseous [[carbon monoxide]] emissions into gaseous ...b>OH are added to gasolines for two reasons. The first reason is that the oxygen reduces the emissions of unburned hydrocarbons as well as the emissions of
    42 KB (6,350 words) - 07:31, 20 April 2024
  • Gasoline
    ...r vehicles. They convert the NOx emissions into gaseous [[nitrogen]] and [[oxygen]]. They also convert any gaseous [[carbon monoxide]] emissions into gaseous ...b>OH are added to gasolines for two reasons. The first reason is that the oxygen reduces the emissions of unburned hydrocarbons as well as the emissions of
    42 KB (6,354 words) - 07:31, 20 April 2024
  • Rocket engine
    ...es and disadvantages. The highest-energy mixes, such as [[hydrogen]] and [[oxygen]], use [[cryogenic]] (intensely cold) liquids, which are difficult to stor ...roxide]] breakdown to produce a gas stream that ran pumps for the [[liquid oxygen]] oxidizer and [[ethanol]] fuel.
    16 KB (2,555 words) - 02:46, 13 March 2024
  • Marine biology
    ...ine the very nature of our planet. Marine organisms produce much of the [[oxygen]] we breathe and probably help regulate the earth's [[climate]]. [[Shorelin ...| scales]], [[fin]]s, [[lip]]s and [[eye]]s. Fish breathe by extracting [[oxygen]] from water through their gills. Fins propel and stabilize the fish in th
    14 KB (1,988 words) - 10:39, 19 September 2009
  • Gas
    *Diatomic elemental gases: [[hydrogen]] (H<sub>2</sub>), [[oxygen]](O<sub>2</sub>), [[nitrogen]] (N<sub>2</sub>), [[fluorine]] (F<sub>2</sub>
    8 KB (1,191 words) - 19:28, 22 January 2011
  • Essiac
    | title = (Abstract) Essiac tea: scavenging of reactive oxygen species and effects on DNA damage.
    7 KB (919 words) - 14:12, 20 August 2010
  • Metabolic acidosis
    ...h rates of hydrogen ion and lactate anion production, often due to reduced oxygen delivery to body tissues; prolonged exercise; liver failure;<ref name=rober
    7 KB (1,061 words) - 21:55, 11 December 2011
  • Anshan
    ...duced the pollution. In the 1990's, they were additionally altered to blow oxygen in form the top as well. This further increase production and reduced pollu
    13 KB (2,211 words) - 19:58, 7 February 2010
  • Trauma medicine
    ...ss is [[permissive hypotension]], where just enough fluid is given to keep oxygen flow to the brain, but deliberately not restoring the systolic blood pressu
    7 KB (1,032 words) - 10:42, 8 April 2024
  • Atomic hypothesis
    .... Dalton had studied gases and noted the weight ratios of [[nitrogen]], [[oxygen]] and [[carbon]] and proposed the Law of Simple Multiple Proportions (later
    7 KB (1,170 words) - 08:30, 6 May 2022
  • Archive:Media Credit Lines within Articles
    {{Image|Oxygen phase diagram.png|right|200px|A GFDL image.}}
    11 KB (1,566 words) - 11:38, 1 October 2013
  • Halobacterium NRC-1
    ...rophic capability is particularly useful to ''Halobacterium sp. NRC-1'' as oxygen is not very soluble in concentrated salt solutions. In addition to its abil ...increase their production of [[bacteriorhodopsin]] in response to drops in oxygen, which is less soluble in saline solutions.
    25 KB (3,592 words) - 03:17, 8 November 2013
  • Spent nuclear fuel
    ...ilms can be deposited by reactive [[spluttering]] using an [[argon]] and [[oxygen]] mixture at a low [[preasure]]. This has been used to make a layer of the
    8 KB (1,357 words) - 12:52, 15 March 2024
  • International Space Station
    ...hing, among other things. The [[Elektron (ISS)|Elektron]] system generates oxygen aboard the station. The highest priority for the life support system is the ...an segment of the International Space Station when fumes from one of three oxygen generator triggered momentary fear about a possible fire. Flight engineer [
    39 KB (5,847 words) - 04:37, 23 February 2024
  • Strategic air warfare against Japan
    ...into a tornado-like inferno which sucked up all the oxygen (including the oxygen in underground shelters). At Hamburg 40,000 people suffocated inside shelte
    14 KB (2,139 words) - 15:18, 8 April 2024
  • Endosymbiotic theory
    ...dosymbionts, allowing cells to withstand growing amounts of free molecular oxygen in the [[Earth's atmosphere]]. However, it now appears that they may be fo
    8 KB (1,150 words) - 15:22, 18 August 2009
  • Septic shock
    ...Claremont HA, Kline JA et al.| title=Lactate clearance vs central venous oxygen saturation as goals of early sepsis therapy: a randomized clinical trial. ..., Claremont HA, Kline JA et al.| title=Lactate clearance vs central venous oxygen saturation as goals of early sepsis therapy: a randomized clinical trial. |
    31 KB (4,306 words) - 23:59, 8 February 2015
  • Magnetic field
    ...temperature and pressure|(STP)]] [[air]], a mixture of [[paramagnetic]] [[oxygen]] and [[diamagnetic]] [[nitrogen]], is paramagnetic (i.e., has positive &c
    9 KB (1,428 words) - 08:19, 1 April 2011
  • Neutron activation analysis
    By examining both ratios of major elements (e.g., carbon, hydrogen, oxygen, nitrogen) as well as the presence of trace elements, NAA, even though expl
    8 KB (1,189 words) - 06:39, 12 September 2013
  • J. B. S. Haldane
    ...JB. (1912) The laws of combination of haemoglobin with carbon monoxide and oxygen. ''J. Physiol'' 44:275-304}} ...d=16993128 The laws of combination of haemoglobin with carbon monoxide and oxygen. ''J. Physiol'' 44:275-304. Free Full-Text]</ref>&nbsp;&nbsp;It reflected p
    22 KB (3,306 words) - 21:10, 17 April 2014
  • Human iron metabolism
    ...[[cytochrome P-450]], and secondarily for [[myoglobin]], which transports oxygen into muscle cells. Iron also is a component of a number of enzymes. The gre
    8 KB (1,113 words) - 19:55, 28 September 2010
  • Specific heat ratio/Citable Version
    ...] gases with a composition of ~78% [[nitrogen]] (N<sub>2</sub>) and ~21% [[oxygen]] (O<sub>2</sub>). At 20 °C and an absolute pressure of 101.325 kPa, the a
    10 KB (1,457 words) - 16:09, 23 September 2013
  • Specific heat ratio
    ...] gases with a composition of ~78% [[nitrogen]] (N<sub>2</sub>) and ~21% [[oxygen]] (O<sub>2</sub>). At 20 °C and an absolute pressure of 101.325 kPa, the a
    10 KB (1,459 words) - 16:10, 23 September 2013
  • Apollo Command-Service Module
    *The left hand intermediate equipment bay, housing the [[oxygen]] surge tank, the water delivery system, food supplies, the cabin pressure ...of [[liquid oxygen]], and two hydrogen tanks 25 kilograms of hydrogen. The oxygen tanks supplied the environmental control system and fuel cells, and the hyd
    24 KB (3,494 words) - 07:31, 20 April 2024
  • Nuclear chemistry
    ...ray|beta]] and [[gamma ray|gamma]] rays, he converted [[nitrogen]] into [[oxygen]], and most importantly he supervised the students who did the [[Geiger-Mar ...2lattice.jpg|right|250px|The solid state structure of uranium dioxide, the oxygen atoms are in red and the uranium atoms in green}}
    31 KB (4,881 words) - 12:55, 15 March 2024
  • Acid dew point
    ...sub>2</sub>O) as well as gaseous [[nitrogen]] (N<sub>2</sub>) and excess [[oxygen]] (O<sub>2</sub>) remaining from the intake combustion [[air]]. Typically,
    11 KB (1,721 words) - 08:08, 15 March 2024
  • Led Zeppelin/Addendum
    |''The Oxygen Destroyer''
    7 KB (882 words) - 09:31, 2 August 2023
  • Insulin resistance
    ...of glucose times the atomic weights of: carbon (C) * 6, hydrogen (H) * 12, oxygen (O) * 6: (12 * 6) + (1 * 12) + (16 * 6) = ~180.2<br>
    8 KB (1,179 words) - 17:37, 10 March 2014
  • Liquefied natural gas
    ...the air is reduced to less than 15 volume % and vomiting occurs when the oxygen level is below 10 volume %, which correspond to the concentration of LNG va
    24 KB (3,746 words) - 09:37, 6 March 2024
  • Lactobacillus kimchii
    ...athway or pentose phosphate pathway. EMP is used when there is not enough oxygen and too much glucose. ''L.kimchii'' is a heterofermentative LAB, it metabo
    9 KB (1,349 words) - 09:26, 7 December 2023
  • Nuclear reactor
    ...C-12) and able to withstand very high temperature when in the absence of [[oxygen]]. Carbon can be used in the form of [[graphite]] as a moderator, but not
    10 KB (1,554 words) - 14:19, 24 January 2023
  • Stent
    ...aque build up on the inner walls of arteries, the blood vessels that carry oxygen-rich blood throughout the body. A stent restores blood flow by acting as a
    10 KB (1,452 words) - 14:10, 2 February 2023
  • Exercise
    ===Oxygen consumption===
    8 KB (1,147 words) - 08:16, 4 April 2011
  • Palliative care
    ...[[dyspnea]], which include opioids in patients with unrelieved dyspnea and oxygen for short-term relief of hypoxemia."
    10 KB (1,403 words) - 14:14, 17 September 2014
  • Continuous distillation
    ...r]] processing, the liquefaction of [[Gas|gases]] such as [[hydrogen]], [[oxygen]], [[nitrogen]], and [[helium]]), and other low-temperature processing. ...nic chemistry|organic]] [[sulphur]] and [[nitrogen]] compounds and some [[oxygen]] containing hydrocarbons such as [[phenols]]. Although crude oils genera
    21 KB (3,308 words) - 09:16, 6 March 2024
  • Cadmium
    ...ed with sphalerite (ZnS). Zinc sulfide ores are roasted in the presence of oxygen converting the zinc sulfide to the oxide. Zinc is produced either by smelti
    9 KB (1,370 words) - 09:16, 6 March 2024
  • Vitamin K
    ...te of vitamin K-dependent carboxylases, vitamin K is thought to react with oxygen yielding a very strong base This base can abstract a proton from the Glu si
    9 KB (1,333 words) - 07:35, 9 June 2009
  • Welding
    ...ch attention, as scientists attempted to protect welds from the effects of oxygen and nitrogen in the atmosphere. Porosity and brittleness were the primary ...me=Weman/> Other gas welding methods, such as [[air acetylene welding]], [[oxygen hydrogen welding]], and [[pressure gas welding]] are quite similar, general
    41 KB (6,367 words) - 05:51, 12 September 2013
  • Fluid catalytic cracking
    |Oxygen || 0.1-1.5% ...ounts of other [[organic compound]]s containing sulfur, [[nitrogen]] and [[oxygen]]. The crude oil also contains small amounts of metals such as [[copper]],
    31 KB (4,755 words) - 09:16, 6 March 2024
  • Poliovirus
    ...sahdral]] symmetry. Poliovirus is composed of carbon, hydrogen, nitrogen, oxygen, phosphorus and sulphur.
    11 KB (1,588 words) - 14:48, 7 February 2009
  • Antibacterial
    ...h of bacteria there must be a certain food supply, moisture, in most cases oxygen, and a certain minimum temperature (see [[bacteriology]]). These condition
    9 KB (1,302 words) - 19:31, 11 February 2010
  • Chemical bond
    ...luoride]] (HF). As an example of larger complexes, [[carbon]] (C) and [[oxygen]] (O) form the pair C—O that appears in many [[Organic chemistry|organi ...stry]]. They occur between, for instance, hydrogen, carbon, nitrogen, and oxygen atoms and give rise to stable, recognizable, molecules. Most covalently b
    37 KB (5,836 words) - 05:36, 6 March 2024
  • Carbon capture and storage
    ...] William Sweet, IEEE Spectrum, January 2008.</ref> the fuel is burned in oxygen instead of air. To limit the resulting flame temperatures to levels common ...ooping combustion]] (CLC). Chemical looping uses a metal oxide as a solid oxygen carrier. Metal oxide particles react with a solid, liquid or gaseous fuel
    33 KB (5,096 words) - 06:33, 10 October 2013
  • N1 rocket
    ...use higher-performance fuels, in his opinion, [[kerosene]] with a [[liquid oxygen]] oxidizer. Additionally, Korolev felt that the toxic nature of the fuels a ...anks within, a smaller spherical kerosene tank on top of the larger liquid oxygen tank below.
    18 KB (2,946 words) - 11:47, 2 February 2023
  • Allostasis and allostatic load
    ...d to the brain when we stand up. This type of allostasis helps to maintain oxygen tension in the brain. ...neself, prevented by the allostatic blood pressure response, but a drop in oxygen tension in the brain below set-range might cause more serious brain damage.
    31 KB (4,344 words) - 22:01, 30 December 2011
  • William Harvey
    ...t the richer 'spirit' in arterial blood is oxygen. Before the discovery of oxygen, the alchemists of the seventeenth century recognized that air contained an
    21 KB (3,459 words) - 21:54, 15 September 2013
  • Ernest Rutherford
    ...successful “alchemist,” confirmed that [[nitrogen]] was transmuted into [[oxygen]]<ref> Nobel Biography [http://nobelprize.org/nobel_prizes/chemistry/laurea
    10 KB (1,594 words) - 09:11, 12 October 2013
  • Theoretical biology/Bibliography
    ::*Mitochondrial concept of leukemogenesis: key role of oxygen-peroxide effects (372 times)
    10 KB (1,412 words) - 17:20, 20 October 2016
  • Milankovitch cycles
    ...past 450,000 years from the Southern hemisphere ocean-floor sediments. The oxygen isotopes from the rocks can be analyzed and correlated to the present tempe
    10 KB (1,472 words) - 08:34, 8 June 2009
  • Extinction
    ...eroid impact, flood volcanism from the Siberian Traps and related loss of oxygen in the seas, and wide-spread volcanic eruptions triggered by the impact of
    12 KB (1,782 words) - 21:21, 5 February 2010
  • Animal
    ...aled. enables an animal's [[internal organs]] to move independently in it, oxygen and nutrients to circulate within it, and an animal to move without [[limb] ...onships are merely a few facets of the great [[carbon cycle|carbon]] and [[oxygen cycle]]s that sustain all life on Earth.
    28 KB (4,279 words) - 06:29, 7 May 2014
  • Bifidobacterium animalis
    ..., and above 8.5. Bifidobacterium are defined as anaerobic, nonetheless the oxygen sensitivity varies within the species, and between the strains of each spec
    10 KB (1,508 words) - 21:37, 14 February 2010
  • Health consequences of obesity
    Obesity causes an increase in [[total body oxygen consumption]] due to excess lean tissue mass as well as the oxidative deman ...ity score decreases CHD risk by 8%. Physical activity increases myocardial oxygen supply, improving myocardial contraction and electrical stability. <ref nam
    20 KB (2,903 words) - 10:11, 24 July 2011
  • IUPAC nomenclature of organic chemistry
    ...sub>2</sub>CH<sub>3</sub> is methoxyethane (''not'' ethoxymethane). If the oxygen is not attached to the end of the main alkane chain, then the whole shorter
    25 KB (3,880 words) - 09:42, 28 September 2013
  • Flue gas stack
    ...de]] (CO<sub>2</sub>) and water vapor as well as [[nitrogen]] and excess [[oxygen]] remaining from the intake combustion air. It also contains a small percen
    11 KB (1,689 words) - 20:45, 20 July 2011
  • Macromolecular chemistry/Citable Version
    ...lowing pairing: left-chain -CO-NH- right chain (the [[carbon|C]] and the [[oxygen|O]] are bound by a double bond, the [[Nitrogen|N]] and [[Hydrogen|H]] with ...oxygenated blood of the lungs, yet, release the cargo in blood with lower oxygen levels where it is consumed by the surrounding cells.
    36 KB (5,455 words) - 11:49, 6 September 2013
  • Macromolecular chemistry
    ...lowing pairing: left-chain -CO-NH- right chain (the [[carbon|C]] and the [[oxygen|O]] are bound by a double bond, the [[Nitrogen|N]] and [[Hydrogen|H]] with ...oxygenated blood of the lungs, yet, release the cargo in blood with lower oxygen levels where it is consumed by the surrounding cells.
    36 KB (5,455 words) - 08:57, 12 September 2013
  • Archive:New Draft of the Week
    {{rpr|Oxygen}} - 18 October 2007
    11 KB (1,622 words) - 08:06, 25 February 2012
  • Venturi tube
    * In [[Venturi mask]]s used in medical [[oxygen therapy]].
    12 KB (1,976 words) - 16:12, 10 February 2024
  • Large-scale trickle filters
    ...ime followed by the diffusion of air into the slime layer to furnish the [[oxygen]] (O<sub>2</sub>) required for the [[Biochemistry|biochemical]] [[oxidation
    11 KB (1,588 words) - 10:16, 4 July 2023
  • Angioedema
    Provide supplemental oxygen and monitor oxygenation. If the airway is compromised, protect it with app
    13 KB (1,716 words) - 13:00, 13 June 2010
  • Hemochromatosis
    ...eart muscles cannot pump enough blood to meet increased need for blood and oxygen. ...ccur during rest since the heart can supply the body with enough blood and oxygen during rest.
    24 KB (3,263 words) - 14:11, 25 June 2010
  • Borrelia burgdorferi
    ...ire oxygen to survive, but only at low concentrations. Too much or lack of oxygen can be harmful to them. They cannot synthesize their own amino acids, fatty
    20 KB (2,900 words) - 03:34, 16 February 2010
  • Pain in babies
    ...n the lungs becomes less efficient. The combination can lead to inadequate oxygen supply to the cells. The damage that hypoxemia does to cells is well known, ...duces the efficiency of the immune system. Taken together with the reduced oxygen available, it would not be surprising if healing of damaged or infected tis
    33 KB (5,279 words) - 00:04, 28 October 2013
  • Anemia
    ...s in blood [[hemoglobin]] concentrations in anemia can lead to decreased [[oxygen]] delivery to tissues.
    24 KB (3,305 words) - 00:48, 22 December 2014
  • Synapsid
    ...often. The quicker air empties and fills the lung cavity, the quicker the oxygen can enter the bloodstream and tissues. This has many advantages, including
    12 KB (1,987 words) - 08:09, 9 February 2013
  • Streptococcus mutans
    ...ative, preventing it from catalyzing the breakdown of hydrogen peroxide to oxygen and water.
    11 KB (1,619 words) - 17:36, 16 February 2010
  • Gold
    ...ted by [[Earth's atmosphere|air]] and most [[reagent]]s. Heat, moisture, [[oxygen]], and most [[corrosion|corrosive]] agents have very little effect on gold, ...feration, [[lysosome|lysosomal]] enzyme release, the release of [[reactive oxygen species]] from [[macrophage]]s, and [[IL-1]] production. However, it can al
    27 KB (4,240 words) - 07:31, 20 April 2024
  • Nuclear magnetic resonance/Catalogs/Magnetic nuclei
    <tr> <td>[[Oxygen]]-17</td> <td><sup>17</sup>O</td> <td>-5/2</td> <td>1.07E-05</td>
    15 KB (2,459 words) - 17:02, 7 March 2024
  • Feline squamous cell carcinoma
    Various studies have used electric stimulation, hyperthermia and hyperbaric oxygen as a supplement to chemotherapy or radiotherapy.<ref>{{citation
    11 KB (1,557 words) - 00:26, 9 September 2010
  • Micrococcus luteus
    ...ganic nitrogen, and cannot synthesize acid from glucose in the presence of oxygen.
    11 KB (1,679 words) - 06:09, 3 December 2010
  • Count Rumford
    as [[Oxygen#History|dephlogisticated air]] is better called oxygen; see
    22 KB (3,530 words) - 12:07, 10 November 2009
  • Atomic radius/Catalogs
    | 8 || O || [[oxygen]]
    17 KB (2,246 words) - 09:16, 6 March 2024
  • Clostridium botulinum
    ...ies in its latent stage. The ideal environment is moist, with very little oxygen in a mesophilic climate. An example, of this type of environment is in soi
    13 KB (1,948 words) - 04:09, 14 November 2013
  • Aurora (astronomy)
    ...and on the energy of the particle that hits the atmospheric gas. Atomic [[oxygen]] is responsible for the two main colours of green ([[wavelength]] of 557.7
    12 KB (1,940 words) - 11:46, 2 February 2023
  • Pancreatitis
    # Oxygen PO<sub>2</sub> < 60 mmHg)
    14 KB (1,864 words) - 10:49, 23 February 2012
  • Internal energy
    ...p>2</sup>, or nuclear contributions (say the fusion energy of protons with oxygen-nuclei). However, a plasma physicist studying the thermodynamics of fusion
    16 KB (2,628 words) - 14:15, 12 December 2021
  • Mutation
    **Oxidative damage caused by oxygen(O)] radicals
    13 KB (2,019 words) - 00:14, 11 November 2007
  • Linux (operating system)
    ..., and increases in speed over KDE3 are planned. A new theme, known as the "Oxygen icon set", will be included.
    14 KB (2,137 words) - 09:02, 2 March 2024
  • Vipera aspis
    ...he cardiovascular system are the result of direct muscle injury or reduced oxygen exchange. On the other hand, Gonzalez (1991) reported that in two cases the
    12 KB (1,748 words) - 14:20, 8 March 2024
  • Ganges River
    ...left. Originating mostly in the Himalayas, they mitigate the low dissolved oxygen and pollutant concentration of the main stream. However, some of these trib
    13 KB (1,723 words) - 14:09, 8 March 2024
  • Lactobacillus casei
    ...robic environments but develops better and more rapidly in the presence of oxygen. The microbe is an organotroph and its metabolism is a homofermentative one
    13 KB (1,860 words) - 17:08, 3 November 2013
  • Cryobiology
    ...tion in temperature is accompanied by a 50% decrease in [[Aerobic exercise|oxygen consumption]]<ref>{{cite journal | author=Raison JK | title=The influence o
    13 KB (1,770 words) - 11:49, 2 February 2023
  • English spellings/Catalogs/E
    '''ére''' ''before'' = '''ãir''' ''oxygen'' = '''héir''' ''estate'' = '''é'er''' ''ever
    13 KB (1,982 words) - 15:39, 24 June 2017
  • Conventional coal-fired power plant
    ...ed with [[hydrazine]], a chemical that scavenges (removes) the remaining [[oxygen]] in the water to below 5 [[Parts-per notation|parts per billion]] (ppb). I ...ore filling with hydrogen. This ensures that a highly explosive hydrogen-[[oxygen]] environment is not created.
    46 KB (7,021 words) - 09:01, 4 May 2024
  • Premature infants
    ...ary circulation by breathing air that has not been supplemented with extra oxygen. Most of the severe problems associated with prematurity, that is, death, d
    12 KB (1,763 words) - 10:27, 1 April 2024
  • Hydrodesulfurization
    ...re C is a [[carbon]] [[atom]] and X is a sulfur (S), [[nitrogen]] (N) or [[oxygen]] (O) atom. The net result of a hydrogenolysis reaction is the formation of
    15 KB (2,156 words) - 09:37, 6 March 2024
  • Transition element
    ...iving systems; proteins containing iron participate in two main processes, oxygen transport and electron transfer (i.e., oxidation–reduction) reactions. Th
    22 KB (3,166 words) - 06:33, 6 March 2024
  • Bacteria
    ...unds as both carbon and energy sources. In [[aerobe|aerobic]] organisms, [[oxygen]] is used as the [[terminal electron acceptor]]. In [[anaerobe|anaerobic]] ...ays. In both [[aerobe|aerobic]] [[phototroph]]y and [[chemolithotroph]]y [[oxygen]] is used as a [[terminal electron acceptor]], while under [[anaerobe|anaer
    26 KB (3,840 words) - 09:16, 6 March 2024
  • Air preheater
    ...and [[water]] vapor (H<sub>2</sub>O) as well as [[nitrogen]] and excess [[oxygen]] remaining from the intake combustion air. Typically, more than two-thirds
    16 KB (2,561 words) - 09:49, 28 July 2023
  • Hydrodesulfurization/Citable Version
    ...re C is a [[carbon]] [[atom]] and X is a sulfur (S), [[nitrogen]] (N) or [[oxygen]] (O) atom. The net result of a hydrogenolysis reaction is the formation of
    15 KB (2,197 words) - 09:37, 6 March 2024
  • Pfiesteria shumwayae
    ...kish water.<ref name=Glasgow2001/> It is implicated that the stress of low oxygen and hypoxia in such waters is the primary cause of these manifestations.
    15 KB (2,177 words) - 16:42, 25 October 2013
  • Prime number
    ...vided into its components, or "products", of H and two O, 1 hydrogen and 2 oxygen atoms. These are like the prime number factors. As elements, these simply c
    18 KB (2,917 words) - 10:27, 30 August 2014
  • Expansion turbine
    ...S6915662.html Demethanizer]</ref> the liquefaction of [[gases]] (such as [[oxygen]], [[nitrogen]], [[helium]], [[argon]] and [[krypton]])<ref>[http://www.nzi
    16 KB (2,411 words) - 09:37, 6 March 2024
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