| rubivirus infections | Virus diseases caused by the rubivirus genus, of the family togaviridae. (12 Dec 1998) |
|---|---|
| Rubner | Max, German hygienist and biochemist, 1854-1932. See: Rubner's laws of growth, Rubner's test. (05 Mar 2000) |
| Rubner's laws of growth | The law of constant energy consumption: the rapidity of growth is proportional to the intensity of the metabolic processes, the law of the constant growth quotient: in most young mammals, 24% of the entire food energy, or calories, is utilised for growth; in humans only 5% is utilised. (05 Mar 2000) |
| Rubner's test | A test for lactose or glucose in the urine; lead acetate is added to the suspected urine which is then filtered; ammonia is added until a permanent precipitate is formed; if lactose is present, the precipitate will take on a pink to red colour when the fluid is heated; if there is glucose, the colour will be yellow to brown. (05 Mar 2000) |
| rubor | Redness, as one of the four signs of inflammation (r., calor, dolor, tumour) enunciated by Celsus. Origin: L. (05 Mar 2000) |
| rubratoxin | A mycotoxin produced by Penicillium rubrum and P. Purpurogenum, which form readily on cereal grains; responsible for outbreaks of toxicosis in the U.S. (05 Mar 2000) |
| rubredoxin-NAD+ reductase | <enzyme> Prior to 1978 was classified as EC 1.6.7.2; alka from pseudomonas maltophilia, perhaps others Registry number: EC 1.18.1.1 Synonym: rubredoxin reductase, rubredoxin nad reductase, NADH rubredoxin oxidoreductase, NADPH rubredoxin oxidoreductase, alka gene product, rbo gene product, rubredoxin oxidoreductase (26 Jun 1999) |
| rubredoxin-oxygen oxidoreductase | <enzyme> Contains fad and a new type of haem; site of oxygen reduction to water by desulfovibrio gigas coupled with NADH oxidation Registry number: EC 1.9.3.- Synonym: rubredoxin oxidase (26 Jun 1999) |
| rubredoxins | A class of iron-sulfur proteins that contains one iron coordinated to the sulfur atom of four cysteine residues. (12 Dec 1998) |
| rubriblast | Synonym: pronormoblast. Origin: L. Ruber, red, + G. Blastos, germ (05 Mar 2000) |
| rubric | That part of any work in the early manuscripts and typography which was coloured red, to distinguish it from other portions. Hence, specifically: A titlepage, or part of it, especially that giving the date and place of printing; also, the initial letters, etc, when printed in red. The directions and rules for the conduct of service, formerly written or printed in red; hence, also, an ecclesiastical or episcopal injunction; usually in the plural. "All the clergy in England solemnly pledge themselves to observe the rubrics." (Hook) Hence, that which is established or settled, as by authority; a thing definitely settled or fixed. "Nay, as a duty, it had no place or rubric in human conceptions before Christianity." (De Quincey) category, class, classification under the rubric of, (See def. (b)) in the category of Origin: OE. Rubriche, OF. Rubriche, F. Rubrique (cf. It. Rubrica), fr. L. Rubrica red earth for colouring, red chalk, the title of a law (because written in red), fr. Ruber = red. See red. Source: Websters Dictionary (01 Mar 1998) |
| rubricyte | Polychromatic normoblast. See: erythroblast. Origin: L. Ruber, red, + kytos, cell (05 Mar 2000) |
| rubrobulbar tract | That component of the rubrospinal tract which distributes its fibres to lateral parts of the rhombencephalic tegmentum rather than the spinal cord, uncrossed rubro-olivary fibres. (05 Mar 2000) |
| rubroreticular fasciculi | Bundles of fibres that connect the red nucleus to the pontine and midbrain reticular nuclei. Synonym: fasciculi rubroreticulares. (05 Mar 2000) |
| rubroreticular tract | Fibres that pass from the red nucleus to the reticular formation of the pons and medulla. (05 Mar 2000) |