| ECG | Electro-Cardio-Graphy(-Gram); ½ÉÀüµµ = EKG 1. Conducting System Structu... |
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| AAPL | American Academy of Psychiatry and the Law |
| ASLM | American Society of Law and Medicine |
| DALE | Drug Abuse Law Enforcement |
| LAW | left atrial wall |
| LEMS | Lambert--Eaton myasthenic syndrome |
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| LES | Lambert-Eaton myasthenic syndrome |
| Lambert's law | Each layer of equal thickness absorbs an equal fraction of the light that traverses it; Cf.: Beer-Lambert law. The illumination of a surface on which the light falls normally from a point source is inversely proportional to the square of the distance from the source. (05 Mar 2000) |
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| beer-lambert law | The equation A=ECL, where A is the absorbance at a given wavelength of light, E is the molar extinction coefficient, C is the concentration of the molar solution, and L is the length of the light path. In words, the equation means that the concentration of a substance in moles is proportional to the absorption of a given wavelength of light by a solution of the substance. The equation is used in the study of spectroscopy. (09 Oct 1997) |
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| eaton-lambert syndrome | <radiology> Myasthenia, bronchial carcinoma, often small cell carcinoma (12 Dec 1998) |
| lambert | <unit> A unit of brightness; the brightness of a perfectly diffusing surface emitting or reflecting a total luminous flux of 1 lumen per sq cm of surface. Origin: J.H. Lambert, German physicist and mathematician, 1728-1777 (05 Mar 2000) |
| lambert-eaton myasthenic syndrome | <neurology> An acquired autoimmune disease characterised by weakness and fatigability of proximal muscles, particularly of the pelvic girdle and thighs, with relative sparing of extraocular and bulbar muscles. It is often associated with small cell carcinoma of the lung. The neuromuscular defect in this disease is believed to be due to a deficient release of acetylcholine. (08 Mar 2000) |
| Lambert-Eaton syndrome | <syndrome> A condition characterised by muscle weakness that is similar to the symptoms of myasthenia gravis. For this reason, it has been referred to as myasthenic syndrome. This disorder is caused by an insufficient release of neurotransmitter (acetylcholine) by the nerve cells. Unlike myasthenia gravis, as muscle contractions are continued, strength will increase. The cause of Lambert-Eaton syndrome is unknown, but is usually associated with small cell carcinoma of the lung or an autoimmune illness. (27 Sep 1997) |
| Lambert, Edward | <person> U.S. Physician, *1915. See: Lambert-Eaton syndrome, Eaton-Lambert syndrome. (05 Mar 2000) |
| lambert pine | <botany> The gigantic sugar pine of California and Oregon (Pinus Lambertiana). It has the leaves in fives, and cones a foot long. The timber is soft, and like that of the white pine of the Eastern States. Origin: So called from Lambert, an English botanist. Source: Websters Dictionary (01 Mar 1998) |
| Lambert's syndrome | <syndrome> A condition characterised by muscle weakness that is similar to the symptoms of myasthenia gravis. For this reason, it has been referred to as myasthenic syndrome. This disorder is caused by an insufficient release of neurotransmitter (acetylcholine) by the nerve cells. Unlike myasthenia gravis, as muscle contractions are continued, strength will increase. The cause of Lambert-Eaton syndrome is unknown, but is usually associated with small cell carcinoma of the lung or an autoimmune illness. (27 Sep 1997) |
| Abbe's law of limiting resolution | <physics> For a periodic structure of units separated by distance d and obliquely illuminated by the unrefracted ray and one of the two diffracted rays (extremely oblique illumination). Abbe applied the law of diffraction: d = 0.5 lambda /NA, where: lambda = wavelength of the monochromic light or shortest of mixed wavelengths NA = the limiting numerical aperture (NA) of objective or condenser. (05 Aug 1998) |
| all or none law | Consistently total response to any effective stimulus. Synonym: all or none law. (05 Mar 2000) |
| American Law Institute formulation | Used in certain jurisdictions to determine criminal responsibility in legal proceedings. See: criminal insanity. (05 Mar 2000) |
| American Law Institute rule | A test of criminal responsibility (1962): "a person is not responsible for criminal conduct if at the time of such conduct as a result of mental disease or defect he lacks substantial capacity either to appreciate the wrongfulness of his conduct or to conform his conduct to the requirements of law." (05 Mar 2000) |
| Ampere's law | <physics> General equation in electromagnetism relating the magnetic field and the currents generating it. The various forms of the equation can be found in an introductory electromagnetism text. (09 Oct 1997) |
| Angstrom's law | A substance absorbs light of the same wavelength as it emits when luminous. (05 Mar 2000) |
| Arndt's law | An obsolete law stating that weak stimuli excite physiologic activity, moderately strong ones favour it, strong ones retard it, and very strong ones arrest it. (05 Mar 2000) |
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