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  • ...) group confers antioxidant effects and is able to [[Redox|reduce]] [[free radical]]s. ...The effect was similar to that observed following a 3-week exposure to an oxygen-deprived environment (chronic [[hypoxia (medical)|hypoxia]]). The authors a
    28 KB (3,682 words) - 16:42, 27 September 2010
  • ...sts of an [[orthophosphate]] radical of a [[phosphorus]] atom with three [[oxygen]]s and one negative charge neutralized by an [[ammonium]] [[cation]] leavin ...t. The release of non-flammable carbon dioxide helps to dilute the air of oxygen and flammable decomposition products of the material that is burning. The
    3 KB (473 words) - 10:09, 20 September 2010
  • ...ellulose. Of these, the peroxidases can provide hydrogen peroxide for free radical attack on the C2–C3 positions of cellulose to form ‘aldehyde' cellulose ...f natural polymers, one group grafted methyl methacrylate onto gelatins by radical initiators and studied these in aqueous solution at temperatures between 60
    68 KB (9,959 words) - 10:10, 20 September 2010
  • ...unit]]. A [[free radical]] is formed here, and then reacts further with [[oxygen]], followed by chain scission to yield [[aldehydes]] and [[carboxylic acids
    25 KB (3,657 words) - 10:10, 20 September 2010
  • ...aylight, combined with the effect of temperature, moisture and atmospheric oxygen, that acts as the main parameters of stress for outdoor weathering. ...eater mobility. Therefore, the rate of oxygen diffusion increases and free-radical fragments formed in primary photochemical processes are more readily separa
    12 KB (1,716 words) - 10:10, 20 September 2010
  • ...ombustible products, or add chemicals that would remove fire-propagating [[Radical (chemistry)|radicals]] (H and OH), to name a few. These specific chemicals === Role of [[Oxygen]] ===
    17 KB (2,260 words) - 10:10, 20 September 2010
  • ...de]]s (e.g. [[cellulose]]) are joined together by [[glycosidic bond]]s via oxygen atoms. ...cular force#Dipole-Dipole Interactions|dipole-dipole bonding]] between the oxygen atoms in C=O groups and the hydrogen atoms in H-C groups. Dipole bonding is
    45 KB (6,501 words) - 10:11, 20 September 2010
  • ...created through [[polymerization]] of ethene. It can be produced through [[radical polymerization]], [[anionic addition polymerization]], [[Coordination polym ...increased [[ductility]]. LDPE is created by [[Radical polymerization|free radical polymerization]]. The high degree of branching with long chains gives molte
    20 KB (2,802 words) - 10:11, 20 September 2010
  • ...pril |pmid=12670177 |doi=10.1021/jf020831j |url=}}</ref> High temperature, oxygen concentration and low pH degrade 11-S-storage–proteins of green coffee be ...offee beans, respectively. Mannitol is a powerful scavenger for [[hydroxyl radical]]s, which are generated during the [[Lipid peroxidation|peroxidation]] of l
    29 KB (4,179 words) - 10:14, 20 September 2010
  • ...scavenger is the [[hydroxyl radical]], a short-lived [[radical (chemistry)|radical]] produced [[photolysis|photolytically]] in the atmosphere. It is the most * [[Hydrazine]] and [[ascorbic acid]] are used as [[oxygen]] scavenger [[corrosion inhibitor]]s.
    2 KB (215 words) - 10:17, 20 September 2010
  • ...ygen as [[hemoglobin]] and [[myoglobin]]; these two compounds are common [[oxygen transport]] proteins in vertebrates. ...>{{Cite journal | first1 = T. W. | last2 = Reinhard | title = Early Earth: Oxygen for heavy-metal fans | journal = Nature | volume = 461 | issue = 7261 | pag
    67 KB (9,808 words) - 10:24, 20 September 2010
  • ...730267 |doi=10.1021/np049685x}}</ref> It is a good scavenger of [[hydroxyl radical]]s and [[hypochlorous acid]], and can inhibit the production of oxidants by *[[Reactive oxygen species]]
    12 KB (1,640 words) - 13:16, 20 September 2010
  • ...mplest [[epoxide]], a three-membered ring consisting of two carbon and one oxygen atom. Because of its special molecular structure, ethylene oxide easily par The relative instability of the carbon-oxygen bonds in the molecule is revealed by the comparison in the table of the ene
    82 KB (11,709 words) - 21:31, 20 September 2010
  • ...nyl]], which is the radical formed by abstraction of a hydrogen atom (free radical H*) from benzene. In bacteria, [[dioxygenase]] enzyme can add an [[oxygen]] molecule to the ring, and the unstable product is immediately reduced (by
    45 KB (6,444 words) - 21:33, 20 September 2010
  • ...ial. This barrier is in contrast to iron or plain carbon steels, where the oxygen migrates into the underlying material and causes [[rust]]ing.<ref>{{cite jo ...ame="NUBASE"/> <sup>53</sup>Cr has been posited as a proxy for atmospheric oxygen concentration.<ref>{{cite doi|10.1038/nature08266}}</ref>
    51 KB (7,299 words) - 21:34, 20 September 2010
  • ...on products are easily separated, e.g., by distillation, substitutive free-radical chlorination (in some cases accompanied by concurrent thermal dehydrochlori ...ine combines with almost all elements to give chlorides. Compounds with [[oxygen]], [[nitrogen]], [[xenon]], and [[krypton]] are known, but do not form by d
    36 KB (5,155 words) - 21:35, 20 September 2010
  • === Lavoisier's oxygen theory of acids === ...doi=10.1021/ed017p124|pages=124–128}}</ref>. One notable modification of oxygen theory was provided by [[Berzelius]], who stated that acids are oxides of n
    29 KB (4,415 words) - 20:17, 21 September 2010
  • ...identate, binds as a κ<sup>6</sup>-ligand, the amines and the carboxylate oxygen atoms are not contiguous. In practice, the n value of a ligand is not indic ...,2'-Bipyridine]] || bipy || neutral || bidentate || easily reduced to its (radical) anion or even to its dianion
    25 KB (3,607 words) - 20:18, 21 September 2010
  • ...ansforming the brain, then reanimating the infected. (The infected brain's oxygen-independence is stressed) Other bodily function vary in how they are affect ...that turns the infected into a zombie like state. In some cases can cause radical mutations.
    66 KB (10,587 words) - 21:08, 21 September 2010
  • ...ssue channels to increase in size and number, reducing the availability of oxygen. This interferes with wound healing and provides a rich culture medium for ...of angiosarcoma is estimated to be 0.45% in patients living 5 years after radical mastectomy.<ref>Martin MB, Kon ND, Kawamoto EH, Myers RT, Sterchi JM. Am Su
    24 KB (3,493 words) - 21:25, 21 September 2010

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