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Publikováno v:
PLoS ONE, Vol 3, Iss 5, p e2149 (2008)
The architectural organization of protein structures has been the focus of intense research since it can hopefully lead to an understanding of how proteins fold. In earlier works we had attempted to identify the inherent structural organization in pr
Externí odkaz:
https://doaj.org/article/f8943fac06af40b79712194ffff9cd58
Publikováno v:
Chaos, Solitons & Fractals. 41:2790-2800
We develop a new method for analysis of fundamental brain waves as recorded by the EEG. To this purpose we introduce a Fractal Variance Function that is based on the calculation of the variogram. The method is completed by using Random Matrix Theory.
Publikováno v:
Chaos, Solitons & Fractals. 41:1416-1426
It is known that R–R time series calculated from a recorded ECG, are strongly correlated to sympathetic and vagal regulation of the sinus pacemaker activity. In human physiology it is a crucial question to estimate such components with accuracy. Fo
Autor:
Eric Conte, Andrei Yuri Khrennikov, Orlando Todarello, Antonio Federici, Leonardo Mendolicchio, Joseph P. Zbilut
Publikováno v:
Open Systems & Information Dynamics. 16:85-100
Processes undergoing quantum mechanics exhibit quantum interference effects. In this case, quantum probabilities result to be different from classical ones because they contain an additional so-called quantum interference term. We use ambiguous figur
Autor:
Norbert Marwan, Joseph P. Zbilut
Publikováno v:
Physics Letters A. 372:6622-6626
The Wiener–Khinchin theorem states that the power spectrum is the Fourier transform of the autocovariance function. One form of the autocovariance function can be obtained through recurrence quantification. We show that the advantage of defining th
Autor:
Joseph P. Zbilut, Charles L. Webber
Publikováno v:
The European Physical Journal Special Topics. 164:55-65
Recurrence quantification analysis can reveal subtle aspects of dynamics not easily appreciated by other methods such as the Fourier transform. Laminarity and maxline are two RQA variables that can demonstrate the presence of unstable singularities w
Autor:
Joseph P. Zbilut, Annabelle Santos Volgman, Jonathan R. Enriquez, James E. Calvin, Pravin Pratap
Publikováno v:
Gender Medicine. 5:53-61
Background: Women have worse morbidity, mortality, and health-related quality-of-life outcomes associated with coronary artery disease (CAD) compared with men. This may be related to underutilization of drug therapies, such as aspirin, β-blockers, a
Publikováno v:
Ecological Modelling. 210:58-70
A non-linear time series analysis technique, recurrence quantification analysis (RQA) based on recurrence plots (RP), is proposed in this paper for the characterization of regime shifts in environmental time series. Its application is illustrated for
Autor:
Charles L. Webber, Joseph P. Zbilut
Publikováno v:
International Journal of Bifurcation and Chaos. 17:3467-3475
Recurrence plots are two-dimensional representations of multidimensional dynamics captured by applying time delays to a single series (vector) of ordinal data in time or space. Recurrence plots may be presented with beautiful lace-like structures, bu