| S | Greek capital letter sigma; syphilis; summation of series |
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| s | Greek lower case letter sigma; conductivity; cross section; millisecond; molecular type or bond; pop... |
| SR | sarcoplasmic reticulum; saturation recovery; scanning radiometer; screen; secretion rate; sedimentat... |
| sigma 54 | sigma N |
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| sigma S | sigma factor |
| s | E-sigma |
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| sigma | The 18th letter of the Greek alphabet, σ. (05 Mar 2000) |
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| sigma bond | <chemistry> A bond formed from the overlap of either two s-orbitals or two hybrid orbitals such as sp3 or sp2 orbitals. (09 Jan 1998) |
| sigma effect | The decrease in apparent viscosity that occurs when a suspension, such as blood, is made to flow through a tube of smaller diameter; observed in tubes less than about 0.3 mm in diameter. Synonym: sigma effect. (05 Mar 2000) |
| sigma factor | Initiation factor (86 kD) that binds to E. Coli DNA dependent RNA polymerase and promotes attachment to specific initiation sites on DNA. Following attachment, the sigma factor is released. (18 Nov 1997) |
| sigma peptide | A peptide with one end bonded to a point within the chain, usually by means of the disulfide group of a cystine residue, so that only one end of the peptide is free; so called since the peptide chain has then the rough shape of the Greek letter sigma; e.g., oxytocin. (05 Mar 2000) |
| sigmatism | Synonym: lisping. Origin: G. Sigma, the letter S (05 Mar 2000) |
| receptors, sigma | A class of cell surface receptors recognised by its pharmacological profile. Sigma receptors were originally considered to be opioid receptors because they bind certain synthetic opioids. However they also interact with a variety of other psychoactive drugs, and their endogenous ligand is not known (although they can react to certain endogenous steroids). Sigma receptors are found in the immune, endocrine, and nervous systems, and in some peripheral tissues. (12 Dec 1998) |
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Synonyms : Minor Sigma Factor, RNA Polymerase Sigma Factor H, Factor, Sigma, Factor, Sigma Initiation, Initiation Factor, Sigma, Sigma Factor, Minor, Subunit, Sigma
| sigma |
the 18th letter of the Greek alphabet
Ãâó: wordnet.princeton.edu/perl/webwn
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| sigma. |
the 18th letter of the Greek alphabet
Ãâó: wordnet.princeton.edu/perl/webwn
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| sigma virus |
a congenitally transmitted genus of rhabdoviruses that induces carbon dioxide sensitivity in Drosophila melanogaster and other fruit flies.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| sigma |
SIGMA is an electronic verification service offered by Nielsen Media Research and is generally used for commercials, infomercials, video news releases, public service announcements, satellite media tours, and electronic press kits. It operates by encoding the SIGMA encoder ID, date of encoding, and time of encoding in lines 20 and 22 of the video signal, which is outside of the area displayed on a normal television screen (this is similar to how closed captioning is transmitted). ...
Ãâó: en.wikipedia.org/wiki/SIGMA_(verification_service)
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| sigma. |
SIGMA is an electronic verification service offered by Nielsen Media Research and is generally used for commercials, infomercials, video news releases, public service announcements, satellite media tours, and electronic press kits. It operates by encoding the SIGMA encoder ID, date of encoding, and time of encoding in lines 20 and 22 of the video signal, which is outside of the area displayed on a normal television screen (this is similar to how closed captioning is transmitted). ...
Ãâó: en.wikipedia.org/wiki/SIGMA_(verification_service)
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| sigma | the 18th letter of the Greek alphabet |
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