| e | base of natural logarithms, approximately 2.7182818285; egg transfer; ejection; electric charge; ele... |
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| DI | date of injury; defective interfering [particle]; dentinogenesis imperfecta; deoxyribonucleic acid i... |
| CHARGE Associations | Coloboma Heart disease Atresia choanae Reta... |
| D/C | 1) Dis-Charge 2) Dilatation(Dilation) & Curretage 3) Dis-C... |
| CCD | calibration curve data; central core disease; charge-coupled device; childhood celiac disease; cleid... |
| AEC | Adenylate energy charge |
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| CCD | Charge Coupled Device |
| CT | Charge transfer |
| EC | Energy charge |
| MLCT | Metal-to-ligand charge-transfer |
| sperm-ovum interactions | Interactive processes between the ovum and the spermatozoon. (12 Dec 1998) |
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| elementary particle interactions | The interactions of particles responsible for their scattering and transformations (decays and reactions). Because of interactions, an isolated particle may decay into other particles. Two particles passing near each other may transform, perhaps into the same particles but with changed momenta (elastic scattering) or into other particles (inelastic scattering). Interactions fall into three groups: strong, electromagnetic, and weak. (12 Dec 1998) |
| fluctuation | 1. A motion like that of waves; a moving in this and that direction; as, the fluctuations of the sea. 2. A wavering; unsteadiness; as, fluctuations of opinion; fluctuations of prices. 3. <medicine> The motion or undulation of a fluid collected in a natural or artifical cavity, which is felt when it is subjected to pressure or percussion. Origin: L. Fluctuatio; cf. F. Fluctuation. Source: Websters Dictionary (01 Mar 1998) |
| fluctuation analysis | Method used to determine (for example) how many ion channels contribute to the transmembrane current. On the assumption that each channel is either open or shut, the noise in the recorded current can be considered to arise from the statistical fluctuation in the number of channels open and the magnitude of the fluctuation gives an estimate of the conductance of a single channel. (18 Nov 1997) |
| fluctuation test | <investigation> Test devised by Luria and Delbruck to determine whether genetic variation in a bacterial population arises spontaneously or adaptively. In the original version the statistical variance in the number of bacteriophage resistant cells in separate cultures of bacteriophage sensitive cells was compared with variance in replicate samples from bulk culture. The greater variance in the isolated populations indicates that mutation occurs spontaneously before challenge with phage. (The proportion of resistant cells depends upon when after isolation the mutation arises which will be very different in separate populations). (18 Nov 1997) |
| food-drug interactions | The pharmacological result, either desirable or undesirable, of drugs interacting with components of the diet. (12 Dec 1998) |
| charge | 1. <physics> A fundamental physical attribute of a particle, which characterises the particle's electromagnetic interaction with other particles and with electric and magnetic fields. 2. Storing energy in a battery or electric capacitor by running a current through it, opposite of discharge. (It is possible to charge most capacitors in either direction, but batteries charge one way, and discharge in the other.) (13 Nov 1997) |
| charge exchange | <radiobiology> Phenomenon in which an ion colliding with a molecule (or an atom) neutralises itself by capturing an electron from the molecule or atom, and transforming the molecule or atom into a positive radical or ion. (13 Nov 1997) |
| charge nurse | A nurse administratively responsible for a designated hospital unit on an 8 hour basis. Synonym: head nurse. (05 Mar 2000) |
| charge transfer | A complex between two organic molecules in which an electron from one (the donor) is transferred to the other (the acceptor), becoming generally distributed throughout the latter; subsequent transfer of a hydrogen atom completes the reduction of the acceptor; such complex's are generally highly coloured and may be so observed, a network of hydrogen bridges at the catalytic centre of certain proteases. Synonym: charge transfer system. (05 Mar 2000) |
| charge transfer complex | A complex between two organic molecules in which an electron from one (the donor) is transferred to the other (the acceptor), becoming generally distributed throughout the latter; subsequent transfer of a hydrogen atom completes the reduction of the acceptor; such complex's are generally highly coloured and may be so observed, a network of hydrogen bridges at the catalytic centre of certain proteases. Synonym: charge transfer system. (05 Mar 2000) |
| charge transfer system | A complex between two organic molecules in which an electron from one (the donor) is transferred to the other (the acceptor), becoming generally distributed throughout the latter; subsequent transfer of a hydrogen atom completes the reduction of the acceptor; such complex's are generally highly coloured and may be so observed, a network of hydrogen bridges at the catalytic centre of certain proteases. Synonym: charge transfer system. (05 Mar 2000) |
| specimen charge | <microscopy> The electrical charge resulting from the impingement of electrons on a nonconducting specimen. (05 Aug 1998) |
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