| ICC | immunocompetent cells; immunocytochemistry; Indian childhood cirrhosis; intensive coronary care; int... |
|---|---|
| LNLS | linear-nonlinear least squares |
| NLS | Names Learning Test; Neu-Laxova syndrome; nonlinear least squares; normal lymphocyte supernatant |
| HMQC | heteronuclear multiple-quantum correlation |
| HSQC | heteronuclear single-quantum correlation |
| CC | Correlation coefficient |
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| COSY | Correlation spectroscopy |
| CCF | Cross-correlation functions |
| CCH | Cross-correlation histograms |
| DQF-COSY | Double-quantum filtered correlation spectroscopy |
| nonlinear dynamics | The study of systems which respond disproportionately (nonlinearly) to initial conditions or perturbing stimuli. Nonlinear systems may exhibit chaos which is classically characterised as sensitive dependence on initial conditions. Chaotic systems, while distinguished from more ordered periodic systems, are not random. When their behaviour over time is appropriately displayed (in phase space), constraints are evident which are described by strange attractors. Phase space representations of chaotic systems, or strange attractors, usually reveal fractal (fractals) self-similarity across time scales. Natural, including biological, systems often display nonlinear dynamics and chaos. (12 Dec 1998) |
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| rank-difference correlation | The relationship between paired series of measurements, each ranked according to magnitude, which yields a coefficient known as rho; the value of rho varies from zero (no relationship) to +1.00 (perfect relationship). (05 Mar 2000) |
| correlation | <statistics> most generally, the degree to which one phenomenon or random variable is associated with or can be predicted from another. In statistics, correlation usually refers to the degree to which a linear predictive relationship exists between random variables, as measured by a correlation coefficient. Correlation may be positive, i.e., both variables increase or decrease together or negative or inverse, i.e., one variable increases when the other decreases. (18 Nov 1997) |
| correlation coefficient | A measure of association that indicates the degree to which two variables have a linear relationship; this coefficient, represented by the letter r, can vary between +1 and -1; when r = +1, there is a perfect positive linear relationship in which one variable relates directly with the other; when r = -1, there is a perfect negative linear relationship between the variables. (05 Mar 2000) |
| product-moment correlation | A statistical procedure which yields the correlation coefficient referred to as r (-1.00 to +1.00) and involves the actual values, rather than the ranks (rank order) of the measurements. (05 Mar 2000) |
| nonlinear correlation | any correlation in which the rates of change of the variables is not constant |
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