Sentence examples for approximate entropy of from inspiring English sources

(b) Approximate entropy of the contact activity.

To measure regularity of the activity patterns, we calculate the approximate entropy of the relative frequency of contact events through a four month period.

Leptin replacement in the hypoleptinemic state restored approximate entropy of FGF-21 time series but did not alter circulating levels.

Engoren [ 26] and El-Khatib and colleagues [ 27] showed that approximate entropy of the tidal volume and breathing frequency patterns, a technique that measures the amount of regularity in a series, is a useful indicator of reversibility of respiratory failure.

We also show for the first time that leptin replacement restored the approximate entropy of FGF-21 time series, but not the energy deprivation-induced changes of FGF-21 levels.

A second criterion was also used for FR classification, whereby the changes in the approximate entropy of the signal were analyzed [ 36, 37] and those that were over twice the mean value were considered putative FRs.

Conversely, REM sleep is associated with controversial results ranging from an increase of approximate entropy to a decrease in sample entropy and Kolomogorov entropy [33] [35].

Parameters of pulsatility analysis based on deconvolution analysis, spectral analysis, and autocorrelation analysis and on the estimation of approximate entropy (ApEn) of individual insulin concentration time series in TS and controls.

By comparing the actual frequency of groups of digits to their expected frequency, Pincus and Singer come up with the "approximate entropy" (ApEn) of the sequence--a measure of its randomness.

Alterations of a rhythm's amplitude or acrophase or of a deterministic or other chaotic endpoint, such as a correlation dimension and approximate entropy, or of a standard deviation, among a multitude of other endpoints, can signal (in the otherwise neglected normal range) reversible risk elevations.

However, differences between the groups were found for the variability (SD of peak frequency, proportional power) and regularity (Approximate Entropy, ApEn) of the tremor signal.