| ECG | Electro-Cardio-Graphy(-Gram); ½ÉÀüµµ = EKG 1. Conducting System Structu... |
|---|---|
| NO | narcotics officer; nitric or nitrous oxide; none obtained; nonobese; nurse's office |
| AAPL | American Academy of Psychiatry and the Law |
| ASLM | American Society of Law and Medicine |
| DALE | Drug Abuse Law Enforcement |
| ALL-Trans RA | ALL-Trans Retinoic acid |
|---|---|
| C ALL | Common ALL |
| T-ALL | T cell ALL |
| ALL | Acute lymphoblastic leukemia |
| ALL | Acute Lymphatic Leukemia |
| all or none law | Consistently total response to any effective stimulus. Synonym: all or none law. (05 Mar 2000) |
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| all or none | Consistently total response to any effective stimulus. Synonym: all or none law. (05 Mar 2000) |
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| none | 1. No one; not one; not anything; frequently used also partitively, or as a plural, not any. "There is none that doeth good; no, not one." (Ps. Xiv. 3) "Six days ye shall gather it, but on the seventh day, which is the Sabbath, in it there shall be none." (Ex. Xvi. 26) "Terms of peace yet none Vouchsafed or sought." (Milton) "None of their productions are extant." (Blair) 2. No; not any; used adjectively before a vowel, in old style; as, thou shalt have none assurance of thy life. None of, not at all; not; nothing of; used emphatically. "They knew that I was none of the register that entered their admissions in the universities." . <botany> None-so-pretty, the Saxifraga umbrosa. See London pride, under London. Origin: OE. None, non, nan, no, na, AS. Nan, fr. Ne not + an one. See No, &, One, and cf. Non-, Null. Source: Websters Dictionary (01 Mar 1998) |
| ALL | <haematology> A rapidly progressing cancer of the blood affecting the type of white blood cell known as lymphocytes. Approximately 650 new cases are diagnosed every year in the UK and it is the most common form of childhood leukaemia. Acronym: ALL Origin: Gr. Haima = blood (11 Nov 1997) |
| all-or-nothing phenomenon | <physiology> Refers to the phenomenon where the strength of a nerve impulse is not dependent on the strength of the stimulus. Instead, there is a threshold level of stimulus strength that must be reached before the nerve will fire an impulse (at full capacity). Below the threshold, the nerve will not fire at all. <cardiology> It also refers to the same phenomenon observed in the heart muscle, which will either contract fully or not at all. <psychology> In studies of behaviour, it refers to the same phenomenon where a behavioural stimulus will either produce a complete response or no response at all. Also called all-or-nothing principle, all-or-none law, all-or-none responsiveness, etc. (15 Nov 1997) |
| all souls' day | The second day of November; a feast day of the Roman Catholic church, on which supplications are made for the souls of the faithful dead. Source: Websters Dictionary (01 Mar 1998) |
| all-trans-retinal | The orange retinaldehyde resulting from the action of light on the rhodopsin of the retina, which converts the 11-cis-retinal component of the rhodopsin to all-trans-retinal plus opsin. Synonym: trans-retinal, visual yellow. (05 Mar 2000) |
| stains-all | 4,5,4',5'-Dibenzo-3,3'-diethyl-9-methylthiocarbocyanine bromide;a dye that stains phosphoproteins blue, proteins red, nucleic acids purple, and mucoproteins and mucopolysaccharides various colours on acrylamide gels; also used on tissue sections. (05 Mar 2000) |
| 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) |
| 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) |
| Arrhenius law | The theory of electrolytic dissociation (1887) that became the basis of our modern understanding of electrolytes: in an electrically conductive solution (e.g., acid, base, or salt), free ions are present before electrolysis, and the proportion of molecules dissociated into ions can be calculated from measurements of electrical conductivity as well as of osmotic pressure. Synonym: Arrhenius law. (05 Mar 2000) |
| Avogadro's law | Equal volumes of gases contain equal numbers of molecules, the conditions of pressure and temperature being the same. Synonym: Ampere's postulate, Avogadro's hypothesis, Avogadro's postulate. (05 Mar 2000) |
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