| NIH | National Institutes of Health |
|---|---|
| CC | calcaneal-cuboid; calcium cyclamate; cardiac catheterization; cardiac contusion; cardiac cycle; card... |
| DRG | diagnosis-related group; Division of Research Grants [NIH}; dorsal respiratory group; dorsal root ga... |
| DRR | digitally reconstructed radiograph; Division of Research Resources [NIH]; dorsal root reflex |
| DRS | descending rectal septum; diagnostic review station; Division of Research Services [NIH]; drowsiness... |
| ( NIH | National Institutes of Health |
|---|---|
| NIH | Normalized Index of Hemolysis |
| CSI | Chemical Shift Imaging |
| CHESS | Chemical shift selective |
| EMSA | Electromobility shift assays |
| consensus development conferences, nih | Articles on conferences sponsored by nih presenting summary statements representing the majority agreement of physicians, scientists, and other professionals convening for the purpose of reaching a consensus on a subject of interest. This heading is used for nih consensus conferences as a means of scientific communication. In indexing it is viewed as a type of review article and as a tag for any article appearing in any publication of the nih office of medical applications of research (omar). (12 Dec 1998) |
|---|---|
| NIH | The National Institutes of Health. (12 Dec 1998) |
| NIH 3T3 cell | <cell culture> Very widely used mouse fibroblast cell line, 3T3 cells have been derived from different mouse strains and it is therefore important to define the particular cell line. NIH strain were from the National Institute of Health in the USA. (18 Nov 1997) |
| antigenic shift | Mutation, i.e., sudden change in molecular structure of RNA/DNA in microorganisms, especially viruses, which produces new strains of the microorganism; hosts previously exposed to other strains have little or no acquired immunity to the new strain; antigenic shift is believed to be the explanation for the occurrence of strains of microorganisms, such as the influenza virus, associated with large scale epidemics. (05 Mar 2000) |
| antigen shift | Abrupt change in antigens expressed by a species or variety of organisms. Usually seen in microorganisms where the change may allow escape from immune recognition. Antigenic drift is a more gradual change. See: antigenic variation. (18 Nov 1997) |
| axis shift | Deflection of the electrical axis of the heart to the right or left of the normal. See: left axis deviation, right axis deviation, axis. Synonym: axis shift. (05 Mar 2000) |
| gas shift process | A process in which carbon monoxide and hydrogen react in the presence of a catalyst to form methane and water. (05 Dec 1998) |
| chemical shift | Dependence of the resonance frequency of a nucleus on the chemical binding of the atom or molecule in which it is contained. See: chemical shift artifact. (05 Mar 2000) |
| chemical shift artifact | In magnetic resonance imaging, a dark band caused by a biochemical difference in resonant frequency of adjacent regions rather than a true anatomic separation. (05 Mar 2000) |
| chloride shift | When CO2 enters the blood from the tissues, it passes into the red blood cell and is converted by carbonate dehydratase to bicarbonate (HCO3-); HCO3- ion passes out into the plasma while Cl- migrates into the red blood cell. Reverse changes occur in the lungs when CO2 is eliminated from the blood. Synonym: Hamburger's phenomenon. (05 Mar 2000) |
| phase shift | <microscopy> A change in the phase relationship between two alternating quantities of the same frequency. (05 Aug 1998) |
| phyletic shift | <ecology> A measurable change over time in a population which can be physical, morphologic, genetic, and/or behavioural. (09 Oct 1997) |
| pivot shift test | A manoeuvre to detect a deficiency of the anterior cruciate ligament of the knee; when the knee is extended, a sudden subluxation of the lateral tibial condyle upon the distal femur is positive. (05 Mar 2000) |
| Purkinje shift | <ophthalmology> In the light-adapted eye, the region of maximal brightness is in the yellow; in the dark-adapted eye, the region of maximal brightness is in the green. Synonym: Purkinje effect, Purkinje shift. (05 Mar 2000) |
| shift | 1. The act of shifting. Specifically: The act of putting one thing in the place of another, or of changing the place of a thing; change; substitution. "My going to Oxford was not merely for shift of air." (Sir H. Wotton) A turning from one thing to another; hence, an expedient tried in difficalty; often, an evasion; a trick; a fraud. "Reduced to pitiable shifts." "I 'll find a thousand shifts to get away." (Shak) "Little souls on little shifts rely." (Dryden) 2. Something frequently shifted; especially, a woman's under-garment; a chemise. 3. The change of one set of workmen for another; hence, a spell, or turn, of work; also, a set of workmen who work in turn with other sets; as, a night shift. 4. In building, the extent, or arrangement, of the overlapping of plank, brick, stones, etc, that are placed in courses so as to break joints. 5. <chemical> A breaking off and dislocation of a seam; a fault. 6. A change of the position of the hand on the finger board, in playing the violin. To make shift, to contrive or manage in an exigency. "I shall make shift to go without him." "[They] made a shift to keep their own in Ireland." (Milton) Origin: Cf. Icel skipti. See Shift. Source: Websters Dictionary (01 Mar 1998) |
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