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  Partner: UNT College of Arts and Sciences
 Department: Center for Nonlinear Science
 Collection: UNT Scholarly Works
Dynamical model for DNA sequences

Dynamical model for DNA sequences

Date: November 1995
Creator: Allegrini, Paolo; Barbi, M.; Grigolini, Paolo & West, Bruce J.
Description: This article discusses a dynamical model for DNA sequences based on the assumption that the statistical properties of DNA paths are determined by the joint action of two processes, one deterministic with long-range correlations and the other random and δ-function correlated.
Contributing Partner: UNT College of Arts and Sciences
Symmetry-induced intermittency in a stochastic reflexive model

Symmetry-induced intermittency in a stochastic reflexive model

Date: February 21, 2012
Creator: Palatella, Luigi & Grigolini, Paolo
Description: Article on symmetry-induced intermittency in a stochastic reflexive model.
Contributing Partner: UNT College of Arts and Sciences
Renewal and memory origin of anomalous diffusion: A discussion of their joint action

Renewal and memory origin of anomalous diffusion: A discussion of their joint action

Date: December 2, 2013
Creator: Bologna, Mauro; West, Bruce J. & Grigolini, Paolo
Description: Article on the renewal and memory origin of anomalous diffusion and a discussion of their joint action.
Contributing Partner: UNT College of Arts and Sciences
Power spectra for both interrupted and perennial aging processes

Power spectra for both interrupted and perennial aging processes

Date: November 10, 2008
Creator: Lukovic, Mirko & Grigolini, Paolo
Description: Article on power spectra for both interrupted and perennial aging processes.
Contributing Partner: UNT College of Arts and Sciences
Anomalous diffusion and ballistic peaks: A quantum perspective

Anomalous diffusion and ballistic peaks: A quantum perspective

Date: June 1998
Creator: Stefancich, Marco; Allegrini, Paolo; Bonci, Luca; Grigolini, Paolo & West, Bruce J.
Description: Article discussing research on anomalous diffusion and ballistic peaks.
Contributing Partner: UNT College of Arts and Sciences
Non-Gaussian statistics of anomalous diffusion: The DNA sequences of prokaryotes

Non-Gaussian statistics of anomalous diffusion: The DNA sequences of prokaryotes

Date: September 1998
Creator: Allegrini, Paolo; Buiatti, Marco, 1972-; Grigolini, Paolo & West, Bruce J.
Description: This article discusses a non-Gaussian indicator to measure the deviation from Gaussian statistics of a diffusion process generated by dichotomous fluctuations with infinite memory.
Contributing Partner: UNT College of Arts and Sciences
Fractional Brownian motion as a nonstationary process: An alternative paradigm for DNA sequences

Fractional Brownian motion as a nonstationary process: An alternative paradigm for DNA sequences

Date: April 1998
Creator: Allegrini, Paolo; Buiatti, Marco, 1972-; Grigolini, Paolo & West, Bruce J.
Description: Article discussing the fractional Brownian motion (FBM) as a nonstationary process and an alternative paradigm for DNA sequences.
Contributing Partner: UNT College of Arts and Sciences
Quantum Entanglement and Entropy

Quantum Entanglement and Entropy

Date: August 20, 2001
Creator: Giraldi, Filippo & Grigolini, Paolo
Description: This article discusses quantum entanglement and entropy.
Contributing Partner: UNT College of Arts and Sciences
Memory Beyond Memory in Heart Beating, a Sign of a Healthy Physiological Condition

Memory Beyond Memory in Heart Beating, a Sign of a Healthy Physiological Condition

Date: April 11, 2002
Creator: Allegrini, Paolo; Grigolini, Paolo; Hamilton, P.; Palatella, Luigi & Raffaelli, G.
Description: In this article, the authors describe two types of memory and illustrate each using artificial and actual heartbeat data sets.
Contributing Partner: UNT College of Arts and Sciences
Diffusion Entropy and Waiting Time Statistics of Hard-X-Ray Solar Flares

Diffusion Entropy and Waiting Time Statistics of Hard-X-Ray Solar Flares

Date: March 25, 2002
Creator: Grigolini, Paolo; Leddon, Deborah & Scafetta, Nicola
Description: Article on diffusion entropy and waiting time statistics of hard-x-ray solar flares.
Contributing Partner: UNT College of Arts and Sciences
Linear Response to Perturbation of Nonexponential Renewal Processes

Linear Response to Perturbation of Nonexponential Renewal Processes

Date: November 23, 2005
Creator: Barbi, Francesco; Bologna, Mauro & Grigolini, Paolo
Description: This article discusses the linear response to perturbation of nonexponential renewal processes.
Contributing Partner: UNT College of Arts and Sciences
Absorption and Emission in the Non-Poissonian Case

Absorption and Emission in the Non-Poissonian Case

Date: July 28, 2004
Creator: Aquino, Gerardo; Palatella, Luigi & Grigolini, Paolo
Description: Article on absorption and emission in the Non-Poissonian Case.
Contributing Partner: UNT College of Arts and Sciences
Mega et al. Reply

Mega et al. Reply

Date: March 26, 2004
Creator: Mega, Mirko S.; Allegrini, Paolo; Grigolini, Paolo; Latora, Vito; Palatella, Luigi; Rapisarda, Andrea et al.
Description: This article is a reply to a comment by A. Helmstetter and D. Sornette about the article 'Power-Law Time Distribution of Large Earthquakes' from 2003.
Contributing Partner: UNT College of Arts and Sciences
Generalized Master Equation Via Aging Continuous-Time Random Walks

Generalized Master Equation Via Aging Continuous-Time Random Walks

Date: 2003
Creator: Allegrini, Paolo; Aquino, Gerardo; Grigolini, Paolo; Palatella, Luigi & Rosa, Angelo
Description: This article discusses the problem of the equivalence between continuous-time random walk (CTRW) and generalized master equation (GME).
Contributing Partner: UNT College of Arts and Sciences
Scaling Detection in Time Series: Diffusion Entropy Analysis

Scaling Detection in Time Series: Diffusion Entropy Analysis

Date: September 25, 2002
Creator: Scafetta, Nicola & Grigolini, Paolo
Description: Article discussing a method of statistical analysis based on the Shannon entropy of the diffusion process generated by the time series, called diffusion entropy analysis (DEA).
Contributing Partner: UNT College of Arts and Sciences
Lévy Scaling: The Diffusion Entropy Analysis Applied to DNA Sequences

Lévy Scaling: The Diffusion Entropy Analysis Applied to DNA Sequences

Date: September 20, 2002
Creator: Scafetta, Nicola; Latora, Vito & Grigolini, Paolo
Description: Article on Lévy scaling and the diffusion entropy analysis applied to DNA sequences. The authors address the problem of the statistical analysis of a time series generated by complex dynamics with the diffusion entropy analysis.
Contributing Partner: UNT College of Arts and Sciences
Random Growth of Interfaces as a Subordinated Process

Random Growth of Interfaces as a Subordinated Process

Date: July 30, 2004
Creator: Failla, Roberto; Grigolini, Paolo; Ignaccolo, Massimiliano & Schwettmann, Arne
Description: Article discussing the random growth of interfaces as a subordinated process.
Contributing Partner: UNT College of Arts and Sciences
Scaling Breakdown: A Signature of Aging

Scaling Breakdown: A Signature of Aging

Date: July 12, 2002
Creator: Allegrini, Paolo; Bellazzini, Jacopo; Bramanti, G.; Ignaccolo, Massimiliano; Grigolini, Paolo & Yang, J.
Description: In this article, the authors prove that the Lévy walk is characterized by bilinear scaling. This effect mirrors the existence of a form of aging that does not require the adoption of nonstationary conditions.
Contributing Partner: UNT College of Arts and Sciences
Aging and Rejuvenation with Fractional Derivatives

Aging and Rejuvenation with Fractional Derivatives

Date: September 10, 2004
Creator: Aquino, Gerardo; Bologna, Mauro; Grigolini, Paolo & West, Bruce J.
Description: This article discusses aging rejuvenation with fractional derivatives.
Contributing Partner: UNT College of Arts and Sciences
Vortex Dynamics in Evolutive Flows: A Weakly Chaotic Phenomenon

Vortex Dynamics in Evolutive Flows: A Weakly Chaotic Phenomenon

Date: 2003
Creator: Bellazzini, Jacopo; Menconi, Giulia; Ignaccolo, Massimiliano; Buresti, Guido & Grigolini, Paolo
Description: In this article, the authors make use of a wavelet method to extract, from experimental velocity signals obtained in an evolutive flow, the dominating velocity components generated by vortex dynamics.
Contributing Partner: UNT College of Arts and Sciences
Power-Law Time Distribution of Large Earthquakes

Power-Law Time Distribution of Large Earthquakes

Date: May 2003
Creator: Mega, Mirko S.; Allegrini, Paolo; Grigolini, Paolo; Latora, Vito; Palatella, Luigi; Rapisarda, Andrea et al.
Description: Article discussing power-law time distribution of large earthquakes and a study of the statistical properties of time distribution of seismicity in California by means of diffusion entropy.
Contributing Partner: UNT College of Arts and Sciences
Solar Turbulence in Earth's Global and Regional Temperature Anomalies

Solar Turbulence in Earth's Global and Regional Temperature Anomalies

Date: February 26, 2004
Creator: Scafetta, Nicola; Grigolini, Paolo; Imholt, Timothy; Roberts, James A. & West, Bruce J.
Description: This article presents a study of the influence of solar activity on the earth's temperature. In particular, the authors focus on the repercussion of the fluctuations of the solar irradiance on the temperature of the Northern and Southern hemispheres as well as on land and ocean regions.
Contributing Partner: UNT College of Arts and Sciences
Long- and Short-Time Analysis of Heartbeat Sequences: Correlation with Mortality Risk in Congestive Heart Failure Patients

Long- and Short-Time Analysis of Heartbeat Sequences: Correlation with Mortality Risk in Congestive Heart Failure Patients

Date: 2003
Creator: Allegrini, Paolo; Balocchi, Rita; Chillemi, Santi; Grigolini, Paolo; Hamilton, P.; Maestri, Roberto et al.
Description: Article discussing long- and short-time analysis of heartbeat sequences and the correlation with mortality risk in congestive heart failure patients.
Contributing Partner: UNT College of Arts and Sciences
Fractional calculus as a macroscopic manifestation of randomness

Fractional calculus as a macroscopic manifestation of randomness

Date: March 1999
Creator: Grigolini, Paolo; Rocco, A. (Andrea) & West, Bruce J.
Description: Article discussing fractional calculus as a macroscopic manifestation of randomness.
Contributing Partner: UNT College of Arts and Sciences