Contrast
71Contrast medium — A medical contrast medium (or contrast agent) is a substance used to enhance the contrast of structures or fluids within the body in medical imaging.[1] It is commonly used to enhance the visibility of blood vessels and the gastrointestinal tract …
72Contrast effect — A contrast effect is the enhancement or diminishment, relative to normal, of perception, cognition and related performance as a result of immediately previous or simultaneous exposure to a stimulus of lesser or greater value in the same dimension …
73Contrast (statistics) — In statistics, particularly analysis of variance, a contrast is a linear combination of two or more factor level means (averages) whose coefficients add up to zero.[1][2] A simple contrast is the difference between two means. A contrast may be… …
74Contrast (linguistics) — In semantics, contrast is a relationship between two discourse segments. Contrast is often overtly marked by markers such as but or however, such as in the following examples: It s raining, but I am not taking an umbrella. We will be giving a… …
75Contrast-Culture-Training — Interkulturelles Lernen bezeichnet eine Form des sozialen Lernens mit dem Ziel der interkulturellen Kompetenz. Es besteht ein gewisser Bezug zum Begriff „Globales Lernen“. Interkulturelles Lernen auch ohne Sprachkenntnisse in Usbekistan bei… …
76Contrast set — A contrast set is a bounded collection of items, each of which could fill the same slot in a given schema, syntactic structure, or other linguistic environment. The seven days of the week, the fifty United States, the eight Hawaiian islands, the… …
77Contrast (literary) — In literature, an author writes contrast when he or she describes the difference(s) between two or more entities. For example, in the first four lines of William Shakespeare s Sonnet 130, Shakespeare contrasts a mistress to the sun, coral, snow,… …
78Contrast threshold — A Contrast Threshold is the minimal amount of contrast, or difference between two shades of objects, needed in order to detect a pattern. Contrast threshold is measured by the number of photons a light stripe reflects in comparison to the number… …
79contrast medium — Med. a radiopaque substance injected into a part of the body, as the stomach or duodenum, to provide a contrasting background for the tissues in an x ray or fluoroscopic examination. [1950 55] * * * Substance comparatively opaque to X rays, which …
80Contrast transfer function — Typical contrast transfer function observed from an electron micrograph The contrast transfer function is a type of optical transfer function that affects images collected in an transmission electron microscope. The contrast transfer function… …
