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sigmoid(o)-sigmoid, S-shaped curvature Greek σιγμοειδής (sigmoeidḗs), crescent-shaped, lunate sigma-shaped sigmoid colon: sinistr(o)-left, left side Latin sinister: sinistrocardia: sinus-of or pertaining to the sinus Latin sinus, a curve, bend, hollow cavity, bosom sinusitis: sito-food, grain Greek σῖτος (sîtos) sitophobia
The inflection point of the sigmoid function or the point at which the function reaches the middle between the chance level and 100% is usually taken as sensory threshold. Plot the proportion of "yes" responses on the y-axis, and therefore create a sigmoidal shape covering the range [0, 1], rather than merely [0.5, 1].
A sigmoid function is any mathematical function whose graph has a characteristic S-shaped or sigmoid curve. A common example of a sigmoid function is the logistic function , which is defined by the formula: [ 1 ]
List of branches of psychology. 4 languages. ... This non-exhaustive list contains many of the sub-fields within the field of psychology: Abnormal psychology;
The Psychopathology of Everyday Life is one of the most important books in psychology. It was written by Freud in 1901 and it laid the basis for the theory of psychoanalysis . The book contains twelve chapters on forgetting things such as names, childhood memories, mistakes, clumsiness, slips of the tongue, and determinism of the unconscious.
A resection margin or surgical margin is the margin of apparently non-tumorous tissue around a tumor that has been surgically removed, called "resected", in surgical oncology. The resection is an attempt to remove a cancer tumor so that no portion of the malignant growth extends past the edges or margin of the removed tumor and surrounding tissue.
Sigmoid volvulus is the most-common form of volvulus of the gastrointestinal tract. [13] and is responsible for 8% of all intestinal obstructions. [citation needed] Sigmoid volvulus is particularly common in elderly persons and constipated patients. Patients experience abdominal pain, distension, and absolute constipation.
Sigmoidoscopy ("sigma", the Greek term for letter "s/ς" + "eidos" + "scopy": namely, to look inside an "s"/"ς"-like object) is the minimally invasive medical examination of the large intestine from the rectum through to the nearest part of the colon, the sigmoid colon.