| Kd | dissociation constant; distribution coefficient; partition coefficient |
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| ICC | immunocompetent cells; immunocytochemistry; Indian childhood cirrhosis; intensive coronary care; int... |
| PC | avoirdupois weight [Lat. pondus civile]; packed cells; paper chromatography; paracortex; parent cell... |
| RPIPP | reverse phase ion-pair partition |
| AC | abdominal circumference; abdominal compression; absorption coefficient; abuse case; acetate; acetylc... |
| PC | Partition coefficient |
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| CPC | Centrifugal partition chromatography |
| ADC | Apparent Diffusion Coefficient |
| ADC | Apparent diffusion coefficient of water |
| CFC | Capillary filtration coefficient |
| partition coefficient | <chemistry> Equilibrium constant for the partitioning of a molecule between hydrophobic (oil) and hydrophilic (water) phases. A measure of the affinity of the molecule for hydrophobic environments and thus, for example: a rough guide to the ease with which a molecule will cross the plasma membrane. (18 Nov 1997) |
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| partition | 1. The act of parting or dividing; the state of being parted; separation; division; distribution; as, the partition of a kingdom. "And good from bad find no partition." (Shak) 2. That which divides or separates; that by which different things, or distinct parts of the same thing, are separated; separating boundary; dividing line or space; specifically, an interior wall dividing one part or apartment of a house, an inclosure, or the like, from another; as, a brick partition; lath and plaster partitions. "No sight could pass Betwixt the nice partitions of the grass." (Dryden) 3. A part divided off by walls; an apartment; a compartment. "Lodged in a small partition." 4. The servance of common or undivided interests, particularly in real estate. It may be effected by consent of parties, or by compulsion of law. 5. A score. <mathematics> Partition of numbers, the resolution of integers into parts subject to given conditions. Origin: F. Partition, L. Partitio. See Part. Source: Websters Dictionary (01 Mar 1998) |
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| partition chromatography | The separation of similar substances by repeated divisions between two immiscible liquids, so that the substances, in effect, cross the partition between the liquids in opposite directions; where one of the liquids is bound as a film on filter paper, the process is termed paper partition chromatography or paper chromatography. (05 Mar 2000) |
| nitrogen partition | Determination of the distribution of nitrogen in the urine among the various constituents. Synonym: nitrogen distribution. (05 Mar 2000) |
| absorption coefficient | <physics> Measures the degree of wave absorption defined as the fraction of wave energy lost as the wave travels a unit distance. See: absorption. (15 Jan 1998) |
| activity coefficient | <chemistry> The factor by which the value of a concentration of a solute must be multiplied to determine its true thermodynamic activity. (06 May 1997) |
| attenuation coefficient | 1. <radiobiology> Compton: The fractional number of photons removed from a beam of radiation per unit thickness of material through which it is passing as a result of Compton effect interactions. 2. Linear: The fractional number of photons removed from a beam of radiation per unit thickness of material through which it is passing due to all absorption and scattering processes. 3. Pair Production: That fractional decrease in the intensity of a beam of ionising radiation due to pair production in a medium through which it passes. 4. Photoelectric Effect: That fractional decrease in the intensity of a beam of ionising radiation due to photoelectric effect in a medium through which it passes. (16 Dec 1997) |
| biological coefficient | Rarely used term denoting the energy expended by the body at rest. (05 Mar 2000) |
| Bunsen's solubility coefficient | The milliliters of gas STPD dissolved per milliliter of liquid and per atmosphere (760 mm Hg) partial pressure of the gas at any given temperature. (05 Mar 2000) |
| velocity coefficient | The rate of transformation of a unit mass of substance in a chemical reaction. (05 Mar 2000) |
| recombination coefficient | <radiobiology> The rate of recombination of positive ions with electrons (or negative ions) in a gas, per unit volume, divided by the product of the particle densities of the two species (positive ions and electrons/negative ions) involved. (09 Oct 1997) |
| mass attenuation coefficient | <physics> The mass attenuation coefficient, u/p, of a material for uncharged ionising particles is the quotient of DN/N by pdl, where DN/N is the fraction of particles that experience interactions in traversing a distance dl in a material of density p. (16 Dec 1997) |
| mass energy absorption coefficient | <physics> The mass energy absorption coefficient, uen/p of a material for uncharged ionising particles is the product of the mass energy transfer coefficient, utr/p and (1 - g) where g is the fraction of the energy of secondary charged particles that is lost to bremsstrahlung in the material. (16 Dec 1997) |
| reflection coefficient | A measure of the relative permeability of a particular membrane to a particular solute; calculated as the ratio of observed osmotic pressure to that calculated from van't Hoff's law; also equal to 1 minus the ratio of the effective pore areas available to solute and to solvent. (05 Mar 2000) |
| reliability coefficient | An index of the consistency of measurement often based on the correlation between scores obtained on the initial test and a retest (test-retest reliability) or between scores on two similar forms of the same test (equivalent-form reliability). (05 Mar 2000) |
| respiratory coefficient | <physiology> Molar ratio of carbon dioxide production to oxygen consumption. (18 Nov 1997) |
| partition coefficient |
the ratio in which a given substance distributes itself between two or more different phases; called also distribution c.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| partition coefficient |
LogP is a measure of differential solubility of a compound in two solvents. The log ratio of the concentrations of the solute in the solvent is called LogP or the Partition Coefficient. The most well known of these partition coefficients is the one based on the solvents Octanol and Water. The octanol-water partition coefficient is a measure of the hydrophobicity and hydrophilicity of a substance. ...
Ãâó: en.wikipedia.org/wiki/Partition_coefficient
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| partition coefficient |
The partition coefficient is the constant ratio that is found when a heterogeneous system of two phases is in equilibrium; the ratio of the concentrations (or strictly activities) of the same molecular species in the two phases is constant at constant temperature and pressure.
Ãâó: www.bio.hw.ac.uk/edintox/glossall.htm
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| partition coefficient |
Measure of the sorption phenomenon, whereby a pesticide is divided between the soil and water phase; also referred to as adsorption partition coefficient. Parts Per Billion (ppb)/Parts Per Million (ppm): Units commonly used to express contamination ratios, as in establishing the maximum permissible amount of a contaminant in water, land, or air.
Ãâó: www.waterquality.de/hydrobio.hw/PTERMS.HTM
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