| AEM | Academic Emergency Medicine [journal]; analytical electron microscopy; ambulatory electrocardiograph... |
|---|---|
| ARM | adrenergic receptor material; aerosol rebreathing method; ambulatory renal monitor; anorectal manome... |
| ATEM | analytic transmission electron microscopy |
| CSLM | confocal scanning microscopy |
| CTEM | conventional transmission electron microscopy |
| Edridge-Green lamp | A lantern used to test recognition of coloured signals; it displays a single light with colour filters in rotating disks that can be modified to simulate conditions of weather and atmosphere. This test for colour blindness was officially adopted in Great Britain in 1915 in place of the Holmgren wool test, but is now seldom used. (05 Mar 2000) |
|---|---|
| tungsten arc lamp | <apparatus> A lamp having highly compressed tungsten elements. (05 Mar 2000) |
| ultraviolet lamp | A lamp that emits rays in the ultraviolet band of the spectrum. See: ultraviolet. (05 Mar 2000) |
| Kromayer's lamp | A U-shaped quartz lamp of mercury vapor, giving out actinic rays; used in the treatment of skin diseases. (05 Mar 2000) |
| uviol lamp | |
| lamp | 1. A light-producing vessel, instrument or apparatus; especially, a vessel with a wick used for the combustion of oil or other inflammable liquid, for the purpose of producing artificial light. 2. Figuratively, anything which enlightens intellectually or morally; anything regarded metaphorically a performing the uses of a lamp. "Thy word is a lamp unto my feet, and a light unto my path." (Ps. Cxix. 105) "Ages elapsed ere Homer's lamp appeared." (Cowper) 3. <physics> A device or mechanism for producing light by electricity. See Incandescent lamp, under Incandescent. Aeolipile lamp, a hollow ball of copper containing alcohol which is converted into vapor by a lamp beneath, so as to make a powerful blowpipe flame when the vapor is ignited. Arc lamp, any brachiopod shell of the genus Terebratula and allied genera. The name refers to the shape, which is like that of an antique lamp. See Terebratula. Safety lamp, a miner's lamp in which the flame is surrounded by fine wire gauze, preventing the kindling of dangerous explosive gases; called also, from Sir Humphry Davy the inventor, Davy lamp. To smell of the lamp, to bear marks of great study and labour, as a literary composition. Origin: F. Lampe, L. Lampas, -adis, fr. Gr, torch, fr. To give light, to shine. Cf. Lampad, Lantern. Source: Websters Dictionary (01 Mar 1998) |
| aperture for electron microscopy | <technique> Anode aperture: The opening in the accelerating voltage anode shield of the electron gun through which the electrons must pass to irradiate the specimen. Condenser aperture: An opening in the condenser lens controlling the number of electrons entering the lens and the angular aperture of the electron beam. The angular aperture can also be controlled by the condenser lens current. Physical objective aperture: A metallic diaphragm, with a small central hole, used to limit the cone of electrons accepted by the objective lens. This improves image-contrast since highly scattered electrons are prevented from arriving at the Gaussian image plane and therefore cannot contribute to background fog. Aplanatic. Free from spherical aberration and coma. (05 Aug 1998) |
| bright field microscopy | <technique> Optical microscopy, in which absorption to a great extent and diffraction to a minor extent give rise to the image, as opposed to phase contrast or interference methods of microscopy. (18 Nov 1997) |
| ratio imaging fluorescence microscopy | <procedure> A method of measurement of intracellular pH or intracellular calcium levels, using a fluorescent probe molecule (see fura-2), in which the two different excitation wavelengths are used and the emitted light levels compared. If emission at one wavelength is sensitive to the intracellular ion level and emission at the other wavelength is not, then standardisation for intracellular probe concentration, efficiency of light collection, inactivation of probe and thickness of cytoplasm can all be performed automatically. (17 Dec 1997) |
| reflection X-ray microscopy | <technique> A method of producing enlarged images by means of X rays. In this method the radiation is totally reflected at glancing incidence from polished concave mirrors or from the curved surfaces of single crystals by Bragg reflection. The problem of aberration corrections still limits the resolution obtainable. (05 Aug 1998) |
| video microscopy | <technique> Microscopy that takes advantage of video as an imaging, image processing, analysing, or controlling device. (05 Aug 1998) |
| phase contrast microscopy | <investigation> A simple nonquantitative form of interference micoscopy of great utility in visualising live cells. Small differences in optical path length due to differences in refractive index and thickness of structures are visualised as differences in light intensity. (18 Nov 1997) |
| microscopy | <technique> The science of the interpretive use, and applications of microscopes. (05 Aug 1998) |
| microscopy, atomic force | Microscopy in which a probe systematically rides across the surface of a sample being scanned in a raster pattern. The vertical position is recorded as a spring attached to the probe rises and falls in response to peaks and valleys on the surface. A microcomputer keeps track of the vertical excursions as a function of the position of the probe in the horizontal plane and presents the sample's image. (12 Dec 1998) |
| microscopy, confocal | A light microscopic technique in which only a small spot is illuminated and observed at a time. An image is constructed through point-by-point scanning of the field in this manner. Light sources may be conventional or laser, and fluorescence or transmitted observations are possible. (12 Dec 1998) |