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free radical
free radical in chemistry, a molecule or atom that contains an unpaired electron but is neither positively nor negatively charged. Free radicals are usually highly reactive and unstable. They are produced by homolytic cleavage of a covalent bond (see chemical bond ); i.e., each of the atoms... Read more |
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methyl
methyl , CH 3 , organic free radical or alkyl group derived from methane by the removal of one hydrogen atom.... Read more |
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ethyl
ethyl , CH 3 CH 2 , organic free radical or alkyl group derived from ethane by removing one hydrogen atom.... Read more |
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phenyl
phenyl , C 6 H 5 , organic free radical or alkyl group derived from benzene by removing one hydrogen atom.... Read more |
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radical
radical in chemistry, group of atoms that are joined together in some particular spatial structure and that take part in most chemical reactions as a single unit. Important inorganic radicals include ammonium, NH 4 ; carbonate, CO 3 ; chlorate, ClO 3 , and perchlorate, ClO 4 ;... Read more |
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free radicals
free radicals A free radical is any chemical species which contains one or more unpaired electrons and which is capable of an independent existence. An unpaired electron is one that can alone occupy an atomic or molecular orbital, conventionally denoted by a superscript dot: X•.The... Read more |
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Antioxidants (Nutrients)
ANTIOXIDANTS ANTIOXIDANTS. Antioxidants are specific organic compounds that are active in the prevention of very rapid harmful chemical chain reactions with oxygen or nitric oxide, that is, oxidation reactions. In the body, oxidation reactions generally involve highly reactive molecules called... Read more |
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Carotenoids
Carotenoids Description The term carotenoid refers to a family of about 600 different plant pigments that function as antioxidants . The yellow, orange, and many of the red pigments in fruits, vegetables, and plant materials are usually carotenoids. In fall, when deciduous trees prepare for... Read more |
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Superoxide dismutase
superoxide dismutase (SOD) A widely distributed enzyme that removes the superoxide radical (O2·), with the formation of molecular oxygen and hydrogen peroxide, in the following reaction: O2· + O2· + 2H+ → O2 + H2O2 The hydrogen peroxide formed is removed by the action of... Read more |
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radical (mathematics)
radical in mathematics, symbol placed over a number or expression, called the radicand, to indicate a root of the radicand. When used without a sign or index number, it designates the positive square root of the radicand, i.e., 2. If both square roots are meant, the radical sign is preceded by... Read more |
 "New Zealand Herald (Auckland, New Zealand)")
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Len Lye's radical revolution.
...one day be writ large, Len Lye's legacy continues to...book, Art That Moves. ``Len developed the idea of creating...fascination with dance. ``Len was crazy about dance but...energy is apparent on film in Free Radicals made ... |
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Len Lye: AUSTRALIAN CENTRE FOR THE MOVING IMAGE.
In 1961 Len Lye wrote, "In tangible sculpture the...the encyclopedic holdings of the Len Lye Foundation at the Govett-Brewster...s most extraordinary artistic "free radicals." That phrase embodied Lye's own ... |
 "The Independent (London, England)")
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Arts: Ahead of the game Abstraction in film is not new. Len Lye was a 1920s...
...star of the local team, Len Lye (1901- 1980), wasn...biographical documentary about Len Lye, which is also being...including Colour Box (1935), Free Radicals (1979) and Particles in...not in Kansas anymore. ... |
 "Daily News (New York, NY)")
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Lye works bound for German art fair
THREE Len Lye sculptures will soon set off...said Christchurch-based Len Lye Foundation executive officer...innovative, jazzy films such as Free Radicals and Particles in Space would...1980, said Mr Webb. * The ... |
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Lye's talent extended to making commercials; At the gallery
LEN LYE is known to film makers and...1920s. Other important early Lye films include Colour box...dance; and the later work Free Radicals, made simply by scratching...accurately. A selection of Len Lye's films ... |
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At the gallery
Len Lye, Free radicals 1958 (revised in 1979) 16mm 4 minutes...with the constant pulse of the music. * Len Lye's films will be shown in Pukekura Park on February 3 and 4 at 9.45pm. The Len Lye ... |
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Art reviews: Experimental shooting
...it looks. The oldest film here, Len Lye's Free Radicals, made in 1950, sparkles with energy...walk, but making it dance. If Free Radicals looks new, Katy Dove...having access to digital techniques Lye ... |
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Repertory
...Andrew's Video Vault Free. Rotunda, 4014 Walnut...ihousephilly.org Free Radical: The Films of Len Lye (Shown on film...Campion know nothing about Len Lye, a Kiwi sculpturist...Box and 1958's ... |
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European Art Festival Osnabrück
...fürs Fernsehen produzierte) Dokumentarfilm "Free Radicals" - nach einem Film von Len Lye - von Pip Chodorov: mehr eine Liebeserklärung...Durchdringung. "Dekorateure" nennt Peter Kubelka in "Free Radicals" den Großteil ... |
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Ground-breaking American choreographer dies
...ballets, including Fancy Free (which later led to...August 8 to October 25, Len Lye's small kinetic sculpture...be able to see Free Radicals and Particles in Motion -- two of Lye's films. Exhibitions...Brewster Art Gallery: ... |
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