| CF | calcaneal fibular [ligament]; calcium leucovorin; calf blood flow; calibration factor; cancer-free; ... |
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| F0, | F1 coupling factor |
| E-C coupling | Excitation-contraction coupling |
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| CF1 | Coupling Factor 1 |
| ECC | Excitation-contraction coupling |
| CI | coupling interval |
| 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) |
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| 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) |
| 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) |
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| 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) |
| 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) |
| ionic coupling | <chemistry> The same as electrical coupling. (18 Nov 1997) |
| electrical coupling | <physiology> General term for an intimate cytoplasmic contact, mediated by gap junctions, between touching cells, such that electrical current injected into either cell changes the membrane potential of both. In neurons, arrays of gap junctions form electrical synapses, that allow action potentials to pass directly between cells. However, electrical coupling is not confined to excitable cells: many embryonic and adult epithelia are coupled, possibly to allow metabolic cooperation. (18 Nov 1997) |
| electromagnetic coupling | <physics> A means of extracting energy from a magnetically confined plasma, where the plasma expands and pushes on the confining magnetic field, causing electrical energy to be generated in the external field-generating circuits. (09 Oct 1997) |
| energy coupling | <chemistry> The tranfer of energy produced in one reaction to another. (09 Oct 1997) |
| excitation contraction coupling | <physiology> Name given to the chain of processes coupling excitation of a muscle by the arrival of a nervous impulse at the motor end plate to the contraction of the filaments of the sarcomere. The crucial link is the release of calcium from the sarcoplasmic reticulum and the analogy is often drawn between this and stimulus secretion coupling, that also involves calcium release into the cytoplasm. (18 Nov 1997) |
| fixed 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 |
yoke: a connection (like a clamp or vise) between two things so they move together a mechanical device that serves to connect the ends of adjacent objects the act of pairing a male and female for reproductive purposes; "the casual couplings of adolescents"; "the mating of some species occurs only in the spring"
Ãâó: wordnet.princeton.edu/perl/webwn
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| coupling |
The phase state in which either two dominant or two recessive alleles of two different genes occur on the same chromosome. Also called cis configuration. cf repulsion.
Ãâó: www.fao.org/docrep/003/X3910E/X3910E06.htm
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| coupling |
Arrangement of wild-type and mutant alleles at two linked loci in which both mutants are on the same chromosome and both wild-type alleles on the homologue (ab/AB). See repulsion
Ãâó: helios.bto.ed.ac.uk/bto/glossary/c2.htm
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| coupling |
(1) The physical connect of an ultrasonic transducer to the test component. (2) The interaction of the coil's magnetic field with the test sample, which results in the generation of eddy currents in the sample and, in turn, a change in probe impedance.
Ãâó: www.ndt-ed.org/GeneralResources/Glossary/letter/c....
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| coupling |
Of a gamete or chromosome, bearing at two or more loci alleles that have been designated to be alike in some way (eg, both wild type rather than mutant).
Ãâó: evolution.unibe.ch/teaching/GlossarE.htm
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| coupling | the act of pairing a male and female for reproductive purposes |
|---|---|
| coupling | a mechanical device that serves to connect the ends of adjacent objects |
| coupling | connection between two things so they move together |
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