| PVD | patient very disturbed; peripheral vascular disease; portal vein dilation; posterior vitreous detach... |
|---|---|
| RVID | ventricular internal dimension |
| ss | semis; one half; 반 |
| beta [Greek letter beta] | an anomer of a carbohydrate; buffer capacity; carbon separated from a carboxyl by one other carbon i... |
| D1 | diagonal one; first dorsal vertebra |
| electrophoresis, agar gel | Electrophoresis in which agar or agarose gel is used as the diffusion medium. (12 Dec 1998) |
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| electrophoresis, gel, pulsed-field | Electrophoresis in which the direction of the electric field is changed periodically. This technique is similar to other electrophoretic methods normally used to separate double-stranded DNA molecules ranging in size up to tens of thousands of base-pairs. However, by alternating the electric field direction one is able to separate DNA molecules up to several million base-pairs in length. (12 Dec 1998) |
| electrophoresis, gel, two-dimensional | Electrophoresis in which a second perpendicular electrophoretic transport is performed on the separate components resulting from the first electrophoresis. This technique is usually performed on polyacrylamide gels. (12 Dec 1998) |
| electrophoresis, polyacrylamide gel | Electrophoresis in which a polyacrylamide gel is used as the diffusion medium. (12 Dec 1998) |
| electrophoresis, starch gel | Electrophoresis in which a starch gel (a mixture of amylose and amylopectin) is used as the diffusion medium. (12 Dec 1998) |
| two dimensional gel electrophoresis | <technique> A high resolution separation technique in which protein samples are separated by isoelectric focussing in one dimension and then laid on an SDS gel for size determined separation in the second dimension. Can resolve hundreds of components on a single gel. (18 Nov 1997) |
| acoustic impedance tests | Objective tests of middle ear function based on the difficulty (impedance) or ease (admittance) of sound flow through the middle ear. These include static impedance and dynamic impedance (i.e., tympanometry and impedance tests in conjunction with intra-aural muscle reflex elicitation). This term is used also for various components of impedance and admittance (e.g., compliance, conductance, reactance, resistance, susceptance). (12 Dec 1998) |
| Alpha tests | A set of paper and pencil-administered mental tests first used in the United States Army in 1917-1918 to determine the mental ability of literate recruits; the set includes 8 different types of tests: i.e., directions, arithmetical problems, practical judgement, synonyms and antonyms, disarrayed sentences, number series completions, analogies, and information; they are designed especially for testing large groups of individuals simultaneously, and for rapid machine scoring; distinguished from the Army Beta tests, a complementary set for administration to recruits who could not read or write English, in which the instructions are given in signs and the test material is pictorial. See: Beta tests. Synonym: Army Alpha tests. (05 Mar 2000) |
| aptitude tests | Primarily non-verbal tests designed to predict an individual's future learning ability or performance. (12 Dec 1998) |
| Beta tests | <psychiatry> A set of pictorially administered mental tests first used in the United States Army in 1917-1918 to determine the relative mental ability of recruits who were illiterate or deficient in reading and writing English, the instructions being given in signs and the test material's pictorial in characters; distinguished from the Army Alpha tests, which were administered at the same time to literate recruits. Synonym: Army Beta tests. (05 Mar 2000) |
| blood coagulation tests | Laboratory tests for evaluating the individual's clotting mechanism. (12 Dec 1998) |
| breath tests | Any tests done on exhaled air. (12 Dec 1998) |
| bronchial provocation tests | Tests involving inhalation of allergens (nebulised or in dust form), nebulised pharmacologically active solutions (e.g., histamine, methacholine), or control solutions, followed by assessment of respiratory function. These tests are used in the diagnosis of asthma. (12 Dec 1998) |
| caloric tests | Elicitation of a rotatory nystagmus by stimulating the saemicircular canals with water or air which is above or below body temperature. In warm caloric stimulation a rotatory nystagmus is developed toward the side of the stimulated ear; in cold, away from the stimulated side. Absence of nystagmus indicates the labyrinth is not functioning. (12 Dec 1998) |
| carcinogenicity tests | Tests to experimentally measure the tumour-producing/cancer cell-producing potency of an agent by administering the agent (e.g., benzanthracenes) and observing the quantity of tumours or the cell transformation developed over a given period of time. The carcinogenicity value is usually measured as milligrams of agent administered per tumour developed. Though this test differs from the DNA-repair and bacterial microsome mutagenicity tests, researchers often attempt to correlate the finding of carcinogenicity values and mutagenicity values. (12 Dec 1998) |