| AVT | Allen vision test; arginine vasotocin; Aviation Medicine Technician |
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| Allen video enhanced contrast | <procedure> A method for enhancing microscopic images pioneered by R D Allen. The digitised image has the background (an out of focus image of the same microscopic field with comparable unevenness of illumination etc.) subtracted and the contrast expanded to utilise the potential contrast range. Interestingly, it is possible to produce images of objects that are below the theoretical limit of resolution microtubules for example. (18 Nov 1997) |
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| Allen's test | For phenol: upon the addition of 5 or 6 drops of hydrochloric acid and then 1 of nitric acid to the suspected fluid, a red colour develops. For strychnine: fluid is extracted with ether, which is then evaporated by means of "drop-by-drop" pipetting into a warmed porcelain dish or crucible; the residue is treated with a small bit of manganese dioxide and dilute sulfuric acid; a red-blue or violet colour develops if strychnine is present. Origin: A.H. Allen A test for radial or ulnar patency; either the radial or ulnar artery is digitally compressed by the examiner after blood has been forced out of the hand by clenching it into a fist; failure of the blood to diffuse into the hand when opened indicates that the artery not compressed is occluded. Origin: Edgar Van Nuys Allen (05 Mar 2000) |
| Allen, Alfred | <person> U.S. Chemist, 1846-1904. See: Allen's test. (05 Mar 2000) |
| Allen, Edgar | <person> U.S. Endocrinologist, 1892-1943. See: Allen-Doisy test, Allen-Doisy unit. (05 Mar 2000) |
| Allen, Edgar Van Nuys | <person> U.S. Physician, 1900-1961. See: Allen's test. (05 Mar 2000) |
| Allen, Willard | <person> U.S. Gynecologist, *1904. See: Corner-Allen test, Corner-Allen unit, Allen-Masters syndrome. (05 Mar 2000) |
| Allen-Doisy test | A test for oestrogenic activity; the material to be investigated is injected repeatedly into immature or spayed rats or mice; the disappearance of leukocytes from the vaginal smear and the appearance of cornified cells constitutes a positive reaction. (05 Mar 2000) |
| Allen-Doisy unit | The quantity of oestrogen capable of producing in a spayed mouse a characteristic change in the vaginal epithelium, namely, disappearance of leukocytes and appearance of cornified cells, as determined by a vaginal smear; equal approximately to one-half of an estrone unit. Synonym: mouse unit. (05 Mar 2000) |
| Allen-Masters syndrome | <syndrome> Pelvic pain resulting from an old laceration of the broad ligament received during delivery. (05 Mar 2000) |
| chalcone michael allen | An organic molecule prepared by aldol condensation of acetophenone andbenzaldehyde. (09 Oct 1997) |
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| Whipple, Allen | <person> U.S. Surgeon, 1881-1963. See: Whipple's operation. (05 Mar 2000) |
| Corner-Allen test | A test for progestational activity; adult female rabbits are mated during estrus and spayed 18 hours later; the test substance is injected subcutaneously on 5 successive days; the minimal amount required to produce complete progestational proliferation of the endometrium is taken as a unit, equivalent to 1.25 mg of progesterone. (05 Mar 2000) |
| Corner-Allen unit | A unit of progestational activity, measured in rabbits; the minimum dose which, divided into five equal daily portions, produces on the sixth day the uterine changes characteristic of the eighth day of normal pregnancy; the unit has about the same potency as the international unit. (05 Mar 2000) |
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| Allen |
United States comedienne remembered as the confused but imperturbable partner of her husband, George Burns (1906-1964) United States filmmaker and comic actor (1935-) a soldier of the American Revolution whose troops helped capture Fort Ticonderoga from the British (1738-1789)
Ãâó: wordnet.princeton.edu/perl/webwn
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| Allen's rule |
To retain heat, warm-blooded animals tend to have shorter and bulkier limbs in colder climates than their relatives in warmer regions.
Ãâó: www.modernhumanorigins.com/a.html
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| Allen test |
A measurement of the blood supply to the hand, this test makes sure that both the radial and ulnar arteries are functioning properly.
Ãâó: www.lieberson.com/en/neurgosurgery_glossary/a.htm
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| Allen Cognitive Level Screen |
A standardized method of assessing information processing based on a theory that postulates six levels of cognitive function. It is used widely by occupational therapists.
Ãâó:
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| Allen's m. |
with the elbow flexed at a right angle, the arm is extended horizontally and rotated externally at the shoulder, the head being rotated to the contralateral shoulder; obliteration of the radial pulse suggests scalenus anterior syndrome.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Allen | American Revolutionary soldier whose troops helped capture Fort Ticonderoga from the British (1738-1789) |
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| Allen | American filmmaker and comic actor (1935-) |
| Allen | United States poet of the beat generation (1926-1997) |
| Allen | a screw with a hexagonal hole in the head |
| Allen | American filmmaker and comic actor (1935-) |
| Allen | United States poet and critic (1899-1979) |
| Allen | a wrench for Allen screws |
| Allen | a city in eastern Pennsylvania |
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