 fluctuation analysis

Method used to determine (for example) how many ion channels contribute to the transmembrane current. On the assumption that each channel is either open or shut, the noise in the recorded current can be considered to arise from the statistical fluctuation in the number of channels open, and the magnitude of the fluctuation gives an estimate of the conductance of a single channel.
Dictionary of molecular biology. 2004.
Look at other dictionaries:
Detrended fluctuation analysis — In stochastic processes, chaos theory and time series analysis, detrended fluctuation analysis (DFA) is a method for determining the statistical self affinity of a signal. It is useful for analysing time series that appear to be long memory… … Wikipedia
Surface brightness fluctuation — (SBF) is a secondary distance indicator used to estimate distances to galaxies. The technique uses the fact that galaxies are made up of a finite number of stars. The number of stars in any small patch of the galaxy will vary from point to point … Wikipedia
Error analysis — is the study of kind and quantity of error that occurs, particularly in the fields of applied mathematics (particularly numerical analysis), applied linguistics and statistics. Error analysis in numerical modelling In numerical simulation or… … Wikipedia
List of numerical analysis topics — This is a list of numerical analysis topics, by Wikipedia page. Contents 1 General 2 Error 3 Elementary and special functions 4 Numerical linear algebra … Wikipedia
ZScore Financial Analysis Tool — The Z score formula for predicting bankruptcy was developed in 1968 by Edward I. Altman, a financial economist and professor at the Leonard N. Stern School of Business at New York University. The Z score is a multivariate formula that measures… … Wikipedia
Hyperbolic coordinates — In mathematics, hyperbolic coordinates are a useful method of locating points in Quadrant I of the Cartesian plane :{(x, y) : x > 0, y > 0 } = Q !.Hyperbolic coordinates take values in :HP = {(u, v) : u in mathbb{R}, v > 0 }.For (x,y) in Q take… … Wikipedia
Adaptation — This article is about the evolutionary process. For other uses, see Adaptation (disambiguation). Part of a series on Evolutionary Biology … Wikipedia
Trendbereinigende Fluktuationsanalyse — Die Trendbereinigende Fluktuationsanalyse (engl. detrended fluctuation analysis DFA) ist ein mathematisches Hilfsmittel zur Analyse von Zeitreihen, Meßreihen und beliebigen äquidistanten Sequenzen. Sie dient der Quantifizierung von… … Deutsch Wikipedia
List of mathematics articles (D) — NOTOC D D distribution D module D D Agostino s K squared test D Alembert Euler condition D Alembert operator D Alembert s formula D Alembert s paradox D Alembert s principle Dagger category Dagger compact category Dagger symmetric monoidal… … Wikipedia
DFA — may refer to: Directory of Financial Advisers, DFA a private directory of Financial Advisers in New Zealand Contents 1 Mathematics, science, and technology 1.1 Computing … Wikipedia