| analytical | Of or pertaining to analysis; resolving into elements or constituent parts; as, an analytical experiment; analytic reasoning; opposed to synthetic. Analytical or coordinate geometry. See Geometry. Analytic language, a noninflectional language or one not characterised by grammatical endings. Analytical table, a table in which the characteristics of the species or other groups are arranged so as to facilitate the determination of their names. Origin: Gr., cf. F. Analytique. See Analysis. Source: Websters Dictionary (01 Mar 1998) |
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| analytical chemistry | <study> The branch of chemistry that deals with the quantitative and qualitative identification of substances. (10 Jan 1998) |
| analytical psychology | The theory of psychopathology and the practice of psychotherapy, according to the principles of Jung, which utilises a system of psychology and psychotherapy emphasizing man's symbolic nature, and differs from freudian psychoanalysis especially in placing less significance upon instinctual (sexual) urges. Synonym: analytical psychology. (05 Mar 2000) |
| analytical sensitivity | The degree of response to a change in concentration of analyte being measured in an assay; synonymous with the detection limit. (05 Mar 2000) |
| analytical specificity | Freedom from interference by any element or compound other than the analyte. (05 Mar 2000) |
| chemistry, analytical | The branch of chemistry dealing with detection (qualitative) and determination (quantitative) of substances. (12 Dec 1998) |
| Abbott's method | A method of treatment of scoliosis by use of a series of plaster jackets applied after partial correction of the curvature by external force. (05 Mar 2000) |
| Abell-Kendall method | A standard method for estimation of total serum cholesterol involving saponification of cholesterol ester by hydroxide, extraction with petroleum ether, and colour development with acetic anhydride-sulfuric acid; the method avoids interference by bilirubin, protein, and haemoglobin. (05 Mar 2000) |
| activated sludge method | A method of sewage disposal in which the sewage is treated with 15% bacterially active, liquid sludge, which is produced by repeated vigorous aeration of fresh sewage to form floccules or sediment; when this flocculation process is complete, the resulting activated sludge contains large numbers of bacteria, together with yeasts, molds, and protozoa, which actively effect the oxidation of organic compounds; this mixture is piped to a sedimentation tank, the effluent from which is completely treated sewage. (05 Mar 2000) |
| Altmann-Gersh method | The method of rapidly freezing a tissue and dehydrating it in a vacuum. (05 Mar 2000) |
| Anel's method | Ligation of an artery immediately above (on the proximal side of) an aneurysm. (05 Mar 2000) |
| Antyllus' method | Ligation of the artery above and below an aneurysm, followed by incision into and emptying of the sac. (05 Mar 2000) |
| aristotelian method | A method of study that stresses the relation between a general category and a particular object. (05 Mar 2000) |
| Ashby method | A differential agglutination method for estimating erythrocyte life span; compatible blood possessing a group factor that the recipient lacks is transferred to the recipient; after the transfusion, sera with potent agglutinins for the recipient's red cells are added to samples of the recipient's blood, and the unagglutinated red cells are counted; using this technique the red cell life span in normal persons is found to be 110 to 120 days. (05 Mar 2000) |
| auxanographic method | A method for the study of bacterial enzymes in which agar is mixed with the material (e.g., starch or milk) which is to serve as an indicator of the enzyme action and is inoculated and plated; if the bacteria produce enzymes digesting the admixed material, there will be a zone of clearing in the medium about each colony. Synonym: diffusion method. (05 Mar 2000) |