| GAL | galactose; galactosyl; glucuronic acid lactone |
|---|---|
| RO | radiation oncology; radiation output; ratio of; relative odds; renal osteodystrophy; reverse osmosis... |
| R/O | rule out |
| NPRM | Notice of Proposed Rule Making |
|---|---|
| ATR | against the rule |
| WTR | with the rule |
| BEL | Bromoenol lactone |
| CL | Coriaria Lactone |
| Hudson, Arthur Cyril | <person> British ophthalmologist, 1875-1962. See: Hudson-Stahli line. (05 Mar 2000) |
|---|---|
| Hudson-Stahli line | <clinical sign, ophthalmology> A brown, horizontal line across the lower third of the cornea, occasionally seen in the aged and also in association with corneal opacities. (05 Mar 2000) |
| pantoyl lactone dehydrogenase | <enzyme> An fmn-dependent enzyme that catalyses the formation of ketopantoyl lactone from l-(+)-pantoyl lactone; isolated from nocardia asteroides Registry number: EC 1.1.99.- (26 Jun 1999) |
| homoserine lactone | The cyclic ester (i.e., the d-lactone) of homoserine; formed by the reaction of cyanogen bromide on methionyl residues in peptides and proteins. (05 Mar 2000) |
| triacetic acid lactone lyase | <enzyme> Non-hydrolytic; froms acetyl-CoA from triacetic acid lactone plus ATP plus CoA Registry number: EC 4.2.99.- Synonym: ATP tal (26 Jun 1999) |
| lactone | <chemistry> One of a series of organic compounds, regarded as anhydrides of certain hydroxy acids. In general, they are colourless liquids, having a weak aromatic odour. They are so called because the typical lactone is derived from lactic acid. Source: Websters Dictionary (01 Mar 1998) |
| 6-phospho-d-glucono d-lactone | An intermediate in the pentose phosphate pathway that is synthesised from d-glucose-6-phosphate. (05 Mar 2000) |
| l-gulono-gamma-lactone | The immediate precursor of ascorbic acid in those animals capable of ascorbic acid biosynthesis. Synonym: dihydroascorbic acid, l-gulono-gamma-lactone. L-gulonolactone oxidase, the enzyme catalyzing the conversion of l-gulonolactone and O2 to H2O2 and l-xylo-hexulonolactone, a precursor of ascorbic acid; absent in primates. (05 Mar 2000) |
| Abegg's rule | The tendency of the sum of the maximum positive and maximum negative valence of a particular element to equal 8; e.g., C may have a valence of +4 and -4, O of +6 and -2. Sometimes loosely stated as all atoms have the same number of valences, a consequence of the tendency of valence electron shells to be filled to 8. (05 Mar 2000) |
| American Law Institute rule | A test of criminal responsibility (1962): "a person is not responsible for criminal conduct if at the time of such conduct as a result of mental disease or defect he lacks substantial capacity either to appreciate the wrongfulness of his conduct or to conform his conduct to the requirements of law." (05 Mar 2000) |
| astigmatism against the rule | Astigmatism when the greater curvature or refractive power is in the horizontal meridian. (05 Mar 2000) |
| astigmatism with the rule | Astigmatism when the greater curvature or refractive power is in the vertical meridian. (05 Mar 2000) |
| pair rule gene | <molecular biology> A segmentation gene, expressed sequentially between gap genes and segment polarity genes. In development of Drosophila, a set of about 8 genes that are expressed only in alternate segments (odd or even) of the developing embryo. Loss of function mutants thus lack alternate segments. Examples: even skipped (eve), fushi tarazu (ftz), hairy. (18 Nov 1997) |
| Gibb's phase rule | An expression of the relationships existing between systems in equilibrium: P + V = C + 2, where P is the number of phases, V the variance or degrees of freedom, and C the number of components; it also follows that the variance is, V = C + 2 -P. For H2O at its triple point, V = 1 + 2 -3 = 0, i.e., both temperature and pressure are fixed. Synonym: Gibb's phase rule. (05 Mar 2000) |
| Gloger's rule | The rule or observation that the skin of a warm-blooded animal species tends to become darker in colour towards warmer climates at lower altitudes or lower latitudes, and to become lighter in colour towards colder climates at higher altitudes or higher latitudes. (09 Oct 1997) |
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