Kappa
Kappa |
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Equivalents | |||||||||||||||||||||||||||||||||
Latin | K | ||||||||||||||||||||||||||||||||
Cyrillic | К | ||||||||||||||||||||||||||||||||
Hebrew | ק | ||||||||||||||||||||||||||||||||
Arabic | ﻙ | ||||||||||||||||||||||||||||||||
Phoenician | ? | ||||||||||||||||||||||||||||||||
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The Kappa ( Greek neuter Κάππα , Majuskel Κ, minuscule κ or κ) is the 10th letter of the Greek alphabet , and has according to the Milesian system the numerical value twentieth
use
In physics , the symbol is used for various physical quantities . On the one hand it is the symbol for electrical conductivity , thermal conductivity , for the kinematic viscosity and on the other hand the symbol for compressibility . Sometimes the symbol is also used for the isentropic exponent . In the general theory of relativity one also finds the natural constant , where Newton's gravitational constant is.
In mathematics , the symbol is used to denote curvature .
In psychology , the symbol for Cohen's kappa is used as a measure of inter-rater agreement.
In medicine, the light chains of immunoglobulins are divided into kappa and lambda. In monoclonal gammopathy ( multiple myeloma and precursors), these are called paraproteins (incomplete or complete immunoglobulins). In addition, there are intracellular, receptor-binding proteins (NF-κB / Iκ-B) in the area of the action of glucocorticoids (steroid hormones), and in the area of opioids so-called κ-opioid receptors, which are also labeled with this letter.
In ophthalmology and physiological ophthalmic optics , the angle between the facial line and the pupil axis is called the angle kappa .
In epidemiology , the symbol is used for the over- dispersion parameter .
Web links
Individual evidence
- ^ Herbert Kaufmann : Strabismus. 4th edition with Heimo Steffen. Georg Thieme Verlag, Stuttgart, New York 2012, ISBN 3-13-129724-7 , page 149