| CF | calcaneal fibular [ligament]; calcium leucovorin; calf blood flow; calibration factor; cancer-free; ... |
|---|---|
| F0, | F1 coupling factor |
| CISS | Common Internet Scheme Syntax |
| CTX | cefotaxime; cerebrotendinous xanthomatosis; chemotaxis; clinical trials exemption scheme; costotendi... |
| ICDS | Integrated Child Development Scheme |
| E-C coupling | Excitation-contraction coupling |
|---|---|
| EQAS | External Quality Assessment Scheme |
| PBS | Pharmaceutical Benefits Scheme |
| CF1 | Coupling Factor 1 |
| ECC | Excitation-contraction coupling |
| scheme | 1. A combination of things connected and adjusted by design; a system. "The appearance and outward scheme of things." (Locke) "Such a scheme of things as shall at once take in time and eternity." (Atterbury) "Arguments . . . Sufficient to support and demonstrate a whole scheme of moral philosophy." (J. Edwards) "The Revolution came and changed his whole scheme of life." (Macaulay) 2. A plan or theory something to be done; a design; a project; as, to form a scheme. "The stoical scheme of supplying our wants by lopping off our desires, is like cuttig off our feet when we want shoes." (Swift) 3. Any lineal or mathematical diagram; an outline. "To draw an exact scheme of Constantinople, or a map of France." (South) 4. <astronomy> A representation of the aspects of the celestial bodies for any moment o at a given event. "A blue case, from which was drawn a scheme of nativity." (Sir W. Scott) Synonym: Plan, project, contrivance, purpose, device, plot. Scheme, Plan. Scheme and plan are subordinate to design; they propose modes of carrying our designs into effect. Scheme is the least definite of the two, and lies more in speculation. A plan is drawn out into details with a view to being carried into effect. As schemes are speculative, they often prove visionary; hence the opprobrious use of the words schemer and scheming. Plans, being more practical, are more frequently carried into effect. "He forms the well-concerted scheme of mischief; 'T is fixed, 't is done, and both are doomed to death." (Rowe) "Artists and plans relieved my solemn hours; I founded palaces, and planted bowers." (prior) Origin: L. Schema a rhetorical figure, a shape, figure, manner, Gr, form, shape, outline, plan, fr, to have or hold, to hold out, sustain, check, stop; cf. Skr. Sah to be victorious, to endure, to hold out, AS. Sige victory, G. Sieg. Cf. Epoch, Hectic, School. Source: Websters Dictionary (01 Mar 1998) |
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| occlusal scheme | The form or design and arrangement of the occlusal and incisal units of a dentition or the teeth on a denture. Synonym: occlusal scheme. (05 Mar 2000) |
| Z scheme of photosynthesis | <biochemistry, biology> A schematic representation of the light reactions of photosynthesis, in which the photosynthetic reaction centres and electron carriers are arranged according to their electrode potential (free energy) in one dimension and their reaction sequence in the second dimension. This gives a Z shape, the two reaction centres (of photosystems I and II) being linked by the photosynthetic electron transport chain. (18 Nov 1997) |
| viscous mechanical coupling | <cell biology> Method by which adjacent cilia are synchronised in a field. Coupling is through the transmission of mechanical forces, rather than of a synchronising signal. (18 Nov 1997) |
| chemiosmotic coupling | The linking of ATP synthesis to electrontransfer by way of an electrochemical hydrogen cation gradient across amembrane. (09 Oct 1997) |
| metabolic coupling | <cell biology, molecular biology> Transfer between tissue cells in contact of low molecular weight metabolites such as nucleotides and amino acids. Transfer is via channels constituted by the connexons of gap junctions and does not involve exchange with the extracellular medium. First observed in cultures of animal cells in which radio labelled purines were transferred from wild type cells to mutants unable to utilise exogenous purines. (27 Jun 1999) |
| constant coupling | Where several premature beats are seen, the interval between each of them and the preceding normal beat is constant. Synonym: constant coupling. Variable coupling, where several extrasystoles are seen, the interval between each of them and the preceding sinus beat varies. (05 Mar 2000) |
| coupling | <biochemistry> The linking of two independent processes by a common intermediate, for example the coupling of electron transport to oxidative phosphorylation or the ATP ADP conversion to transport processes. (18 Nov 1997) |
| coupling defect | See: familial goiter. (05 Mar 2000) |
| coupling factor | Protein responsible for coupling transmembrane potentials to ATP synthesis in chloroplasts and mitochondria. Include ATP synthesising enzymes (F1 in mitochondrion), that can also act as ATP ases. (18 Nov 1997) |
| coupling factors | Proteins that restore phosphorylating ability to mitochondria that have lost it, i.e., have become "uncoupled" so that oxidation and electron transport no longer produces ATP. Usually termed coupling factor F1, F2, etc. Synonym: C factors. (05 Mar 2000) |
| coupling interval | The interval, usually expressed in hundredths of a second, between a normal sinus beat and the ensuing premature beat. (05 Mar 2000) |
| coupling phase | The physical relationship of two syntenic genes. If they are on the same chromosome, they are said to be "in coupling" or "in the cis phase"; if on opposite members of a chromosome pair, "in repulsion" or "in the trans phase." (05 Mar 2000) |
| signal response coupling | The cascade of processes by which an extracellular signal (typically a hormone or neurotransmitter) interacts with a receptor at the cell surface, causing a change in the level of a second messenger for example calcium or cyclic AMP) and ultimately effects a change in the cells functioning (for example: triggering glucose uptake or initiating cell division). Can also be applied to sensory signal transduction, for example of light at photoreceptors. (18 Nov 1997) |
| stimulus secretion coupling | A term used to describe the events that link receipt of a stimulus with the release of materials from membrane bounded vesicles (the analogy is with excitation contraction coupling in the control of muscle contraction). A classical example is the link between membrane depolarisation at the presynaptic terminal and the release of neurotransmitter into the synaptic cleft. (18 Nov 1997) |
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