| Finney, John | <person> U.S. Surgeon, 1863-1942. See: Finney's operation, Finney pyloroplasty. (05 Mar 2000) |
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| Fordyce, John | <person> U.S. Dermatologist, 1858-1925. See: Fordyce's angiokeratoma, Fordyce's disease, Fordyce's granules, Fordyce's spots, Fox-Fordyce disease. (05 Mar 2000) |
| Forssman, John | <person> Swedish bacteriologist and pathologist, 1868-1947. See: Forssman antibody, Forssman antigen, Forssman reaction, Forssman antigen-antibody reaction. (05 Mar 2000) |
| Fothergill, John | <person> English physician, 1712-1780. See: Fothergill's disease, Fothergill's neuralgia, Fothergill's sign. (05 Mar 2000) |
| Lilly, John | <person> U.S. Physiologist, *1915. See: Silverman-Lilly pneumotachograph. (05 Mar 2000) |
| Lloyd, John Uri | <person> U.S. Pharmacist, 1849-1936. Noted for investigational work in plant chemistry and phytochemistry as applied to medicines, alkaloids, and glucosides. (05 Mar 2000) |
| Long, John | <person> U.S. Physician, 1856-1927. See: Long's coefficient, Long's formula. (05 Mar 2000) |
| Luft, John | <person> U.S. Histologist, *1927. See: Luft's potassium permanganate fixative. (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) |
| 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) |