| HRV | heart rate variability; human reovirus; human rotavirus |
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| AEM | Academic Emergency Medicine [journal]; analytical electron microscopy; ambulatory electrocardiograph... |
| AG | abdominal girth; agarose; aminoglutethimide; analytical grade; anion gap; antigen; antiglobulin; ant... |
| API | alkaline protease inhibitor; Analytical Profile Index; arterial pressure index; atmospheric pressure... |
| AR | absolute risk; accounts receivable; achievement ratio; actinic reticuloid [syndrome]; active resista... |
| AOAC | Association of Official Analytical Chemists |
|---|---|
| BAM | Bacteriological Analytical Manual |
| BPV | Blood pressure variability |
| HRV | HR variability |
| HRV | Heart Rate Variability |
| baseline variability of foetal heart rate | The beat-to-beat changes in foetal heart rate as recorded on a graph. (05 Mar 2000) |
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| beat-to-beat variability | Variability of foetal heart rate measured in changes in the QRS-QRS interval from heart beat to heart beat; measured with electronic internal foetal heart rate monitors. Continuous variation, a series of very slight variation's. (05 Mar 2000) |
| variability | The state of being variable. (18 Nov 1997) |
| analytical | Of or pertaining to analysis; resolving into elements or constituent parts; as, an analytical experiment; analytic reasoning; opposed to synthetic. Analytical or coordinate geometry. See Geometry. Analytic language, a noninflectional language or one not characterised by grammatical endings. Analytical table, a table in which the characteristics of the species or other groups are arranged so as to facilitate the determination of their names. Origin: Gr., cf. F. Analytique. See Analysis. Source: Websters Dictionary (01 Mar 1998) |
| analytical chemistry | <study> The branch of chemistry that deals with the quantitative and qualitative identification of substances. (10 Jan 1998) |
| analytical psychology | The theory of psychopathology and the practice of psychotherapy, according to the principles of Jung, which utilises a system of psychology and psychotherapy emphasizing man's symbolic nature, and differs from freudian psychoanalysis especially in placing less significance upon instinctual (sexual) urges. Synonym: analytical psychology. (05 Mar 2000) |
| analytical sensitivity | The degree of response to a change in concentration of analyte being measured in an assay; synonymous with the detection limit. (05 Mar 2000) |
| analytical specificity | Freedom from interference by any element or compound other than the analyte. (05 Mar 2000) |
| chemistry, analytical | The branch of chemistry dealing with detection (qualitative) and determination (quantitative) of substances. (12 Dec 1998) |
| random | 1. Force; violence. "For courageously the two kings newly fought with great random and force." (E. Hall) 2. A roving motion; course without definite direction; want of direction, rule, or method; hazard; chance; commonly used in the phrase at random, that is, without a settled point of direction; at hazard. "Counsels, when they fly At random, sometimes hit most happily." (Herrick) "O, many a shaft, at random sent, Finds mark the archer little meant !" (Sir W. Scott) 3. Distance to which a missile is cast; range; reach; as, the random of a rifle ball. 4. <chemical> The direction of a rake-vein. Origin: OE. Randon, OF. Randon force, violence, rapidity, a randon, de randon, violently, suddenly, rapidly, prob. Of German origin; cf. G. Rand edge, border, OHG. Rant shield, edge of a shield, akin to E. Rand, n. See Rand. Going at random or by chance; done or made at hazard, or without settled direction, aim, or purpose; hazarded without previous calculation; left to chance; haphazard; as, a random guess. "Some random truths he can impart." (Wordsworth) "So sharp a spur to the lazy, and so strong a bridle to the random." (H. <medicine> Spencer) Random courses, stonework consisting of stones of unequal sizes fitted together, but not in courses nor always with flat beds. Source: Websters Dictionary (01 Mar 1998) |
| random allocation | A process involving chance used in therapeutic trials or other research endeavor for allocating experimental subjects, human or animal, between treatment and control groups, or among treatment groups. It may also apply to experiments on inanimate objects. (12 Dec 1998) |
| random amplification of polymorphic DNA | <molecular biology> A term originally invented by polymer chemists to describe a disordered tangle of a linear polymer chain with curved sections. In DNA parlance the random coil refers to the structure that results from melting or other forms of separation of the double helix, i.e. Helix coil transition. (18 Nov 1997) |
| random amplified polymorphic DNA technique | Technique that utilises low-stringency polymerase chain reaction (pcr) amplification with single primers of arbitrary sequence to generate strain-specific arrays of anonymous DNA fragments. Rapd technique may be used to determine taxonomic identity, assess kinship relationships, analyze mixed genome samples, and create specific probes. (12 Dec 1998) |
| random coil | A structure of a macromolecule (typically, a biopolymer) which changes with time. (05 Mar 2000) |
| random mating | Totally haphazard mating with no regard to the genetic makeup (genotype) of the mate so that any sperm has an equal chance of fertilizing any egg. This rarely, if ever, occurs but the concept is impoortant in population genetics. Also called panmixus. (12 Dec 1998) |
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