| organizational case studies | Descriptions and evaluations of specific health care organizations. (12 Dec 1998) |
|---|---|
| time and motion studies | The observation and analysis of movements in a task with an emphasis on the amount of time required to perform the task. (12 Dec 1998) |
| electrophysiological studies | <investigation> A special study that involves the placement of electrodes inside the heart to map the electrical characteristics of the heart. This study is carried out in a specially equipped lab and is similar to a cardiac catheterisation procedure. Electrodes are placed inside the heart via a catheter placed into a vein. The electrodes are positioned near the heart's conduction system and an electrical map of the heart can be determined. This test is often performed in those where a life-threatening cardiac arrhythmia is a problem. The location and characteristics of an arrhythmia can be determined, thus guiding medical management of the problem. Patients with Wolf Parkinson White syndrome or sick sinus syndrome may have this test as part of their evaluation. Acronym: EPS (14 Mar 2000) |
| epidemiologic studies | Studies designed to examine associations, commonly, hypothesised causal relations. They are usually concerned with identifying or measuring the effects of risk factors or exposures. The common types of analytic study are case-control studies, cohort studies, and cross-sectional studies. (12 Dec 1998) |
| evaluation studies | Studies determining the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. For drugs and devices, clinical trials, drug evaluation, and drug screening are available. (12 Dec 1998) |
| twin studies | Methods of detecting genetic aetiology in human traits. The basic premise of twin studies is that monozygotic twins, being formed by the division of a single fertilised ovum, carry identical genes, while dizygotic twins, being formed by the fertilization of two ova by two different spermatozoa, are genetically no more similar than two siblings born after separate pregnancies. (12 Dec 1998) |
| feasibility studies | Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project. (12 Dec 1998) |
| follow-up studies | Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease. (12 Dec 1998) |
| longitudinal studies | Studies in which variables relating to an individual or group of individuals are assessed over a period of time. (12 Dec 1998) |
| amido black | <chemical> 4-amino-5-hydroxy-3-((4-nitrophenyl)azo)-6-(phenylazo)-2,7- naphthalenedisulfonic acid disodium salt. A dye used to stain proteins in electrophoretic techniques. It is used interchangeably with its acid form. Pharmacological action: dyes. Chemical name: 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-((4-nitrophenyl)azo)-6-(phenylazo)-, disodium salt (12 Dec 1998) |
| amido black 10B | An acid diazo dye, C12H14N6O9S2Na2, used as a connective tissue stain, for staining protein in paper chromatography, and in electrophoresis. (05 Mar 2000) |
| animal black | Charcoal produced by incomplete combustion of animal tissues, especially bone. Synonym: animal black, bone black, bone charcoal. (05 Mar 2000) |
| anti-black-tongue factor | A precursor of NAD, that is a product of the oxidation of nicotine. (18 Nov 1997) |
| black | 1. That which is destitute of light or whiteness; the darkest colour, or rather a destitution of all colour; as, a cloth has a good black. "Black is the badge of hell, The hue of dungeons, and the suit of night." (Shak) 2. A black pigment or dye. 3. A negro; a person whose skin is of a black colour, or shaded with black; especially. A member or descendant of certain African races. 4. A black garment or dress; as, she wears black; pl. Mourning garments of a black colour; funereal drapery. "Friends weeping, and blacks, and obsequies, and the like show death terrible." (Bacon) "That was the full time they used to wear blacks for the death of their fathers." (Sir T. North) 5. The part of a thing which is distinguished from the rest by being black. "The black or sight of the eye." (Sir K. Digby) 6. A stain; a spot; a smooch. "Defiling her white lawn of chastity with ugly blacks of lust." (Rowley) Black and white, writing or print; as, I must have that statement in black and white. Blue black, a pigment of a blue black colour. Ivory black, a fine kind of animal charcoal prepared by calcining ivory or bones. When ground it is the chief ingredient of the ink used in copperplate printing. Berlin black. See Berlin. 1. Destitute of light, or incapable of reflecting it; of the colour of soot or coal; of the darkest or a very dark colour, the opposite of white; characterised by such a colour; as, black cloth; black hair or eyes. "O night, with hue so black!" (Shak) 2. In a less literal sense: Enveloped or shrouded in darkness; very dark or gloomy; as, a black night; the heavens black with clouds. "I spy a black, suspicious, threatening cloud." (Shak) 3. Dismal, gloomy, or forbidding, like darkness; destitute of moral light or goodness; atrociously wicked; cruel; mournful; calamitous; horrible. "This day's black fate." "Black villainy." "Arise, black vengeance." "Black day." "Black despair." 4. Expressing menace, or discontent; threatening; sullen; foreboding; as, to regard one with black looks. Black is often used in self-explaining compound words; as, black-eyed, black-faced, black-haired, black-visaged. Black act, the English statute 9 George I, which makes it a felony to appear armed in any park or warren, etc, or to hunt or steal deer, etc, with the face blackened or disguised. Subsequent acts inflicting heavy penalties for malicious injuries to cattle and machinery have been called black acts. <chemistry> Black angel, the palm cockatoo. See Cockatoo. Black copper. Same as Melaconite. Black currant. <botany> An American hawk (Buteo Harlani). Synonym: Dark, murky, pitchy, inky, somber, dusky, gloomy, swart, Cimmerian, ebon, atrocious. Origin: OE. Blak, AS. Blaec; akin to Icel. Blakkr dark, swarthy, Sw. Black ink, Dan. Blaek, OHG. Blach, LG. & D. Blaken to burn with a black smoke. Not akin to AS. Blac, E. Bleak pallid. 98. Source: Websters Dictionary (01 Mar 1998) |
| black art | The art practiced by conjurers and witches; necromancy; conjuration; magic. This name was given in the Middle Ages to necromancy, under the idea that the latter term was derived from niger black, instead of nekros, a dead person, and manteia, divination. Source: Websters Dictionary (01 Mar 1998) |