Non-Poisson distribution of the time distances between two consecutive clusters of earthquakes (open access)

Non-Poisson distribution of the time distances between two consecutive clusters of earthquakes

Article discussing non-Poisson distribution of the time distances between two consecutive clusters of earthquakes.
Date: 2004
Creator: Palatella, Luigi; Allegrini, Paolo; Grigolini, Paolo; Latora, Vito; Mega, Mirko S.; Rapisarda, Andrea et al.
Object Type: Article
System: The UNT Digital Library
Renewal and memory properties in the random growth of surfaces (open access)

Renewal and memory properties in the random growth of surfaces

Article discussing the renewal and memory properties in the random growth of surfaces.
Date: February 4, 2008
Creator: Cakir, Rasit; Grigolini, Paolo & Ignaccolo, Massimiliano
Object Type: Article
System: The UNT Digital Library
A fluctuating environment as a source of periodic modulation (open access)

A fluctuating environment as a source of periodic modulation

Article discussing a fluctuating environment as a source of periodic modulation.
Date: March 12, 2007
Creator: Bianco, Simone; Grigolini, Paolo & Paradisi, Paolo
Object Type: Article
System: The UNT Digital Library
Response of Complex Systems to Complex Perturbations: the Complexity Matching Effect (open access)

Response of Complex Systems to Complex Perturbations: the Complexity Matching Effect

Paper discussing the complexity matching effect.
Date: December 2006
Creator: Allegrini, Paolo; Bologna, Mauro; Grigolini, Paolo & West, Bruce J.
Object Type: Paper
System: The UNT Digital Library
Fluctuation-Dissipation Process Without a Time Scale (open access)

Fluctuation-Dissipation Process Without a Time Scale

Article discussing the fluctuation-dissipation process without a time scale.
Date: May 2000
Creator: Annunziato, Mario; Grigolini, Paolo & Riccardi, Juri
Object Type: Article
System: The UNT Digital Library
Towards the thermodynamics of localization processes (open access)

Towards the thermodynamics of localization processes

In this article, the authors study the entropy time evolution of a quantum mechanical model, which is frequently used as a prototype for Anderson's localization.
Date: September 2000
Creator: Grigolini, Paolo; Pala, Marco G.; Palatella, Luigi & Roncaglia, Roberto
Object Type: Article
System: The UNT Digital Library
Canonical and noncanonical equilibrium distribution (open access)

Canonical and noncanonical equilibrium distribution

Article discussing research on canonical and noncanonical equilibrium distribution.
Date: 2001
Creator: Annunziato, Mario; Grigolini, Paolo & West, Bruce J.
Object Type: Article
System: The UNT Digital Library
Trajectory versus probability density entropy (open access)

Trajectory versus probability density entropy

In this article, the authors show that the widely accepted conviction that a connection can be established between the probability density entropy and the Kolmogorov-Sinai (KS) entropy is questionable.
Date: 2001
Creator: Bologna, Mauro; Grigolini, Paolo; Karagiorgis, Markos & Rosa, Angelo
Object Type: Article
System: The UNT Digital Library
Anomalous diffusion associated with nonlinear fractional derivative Fokker-Planck-like equation: Exact time-dependent solutions (open access)

Anomalous diffusion associated with nonlinear fractional derivative Fokker-Planck-like equation: Exact time-dependent solutions

Article discussing research on anomalous diffusion associated with nonlinear fractional derivative Fokker-Planck-like equation.
Date: August 2000
Creator: Bologna, Mauro; Tsallis, Constantino & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
Diffusion Entropy and Waiting Time Statistics of Hard-X-Ray Solar Flares (open access)

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

Article on diffusion entropy and waiting time statistics of hard-x-ray solar flares.
Date: March 25, 2002
Creator: Grigolini, Paolo; Leddon, Deborah & Scafetta, Nicola
Object Type: Article
System: The UNT Digital Library
Memory Beyond Memory in Heart Beating, a Sign of a Healthy Physiological Condition (open access)

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

In this article, the authors describe two types of memory and illustrate each using artificial and actual heartbeat data sets.
Date: April 11, 2002
Creator: Allegrini, Paolo; Grigolini, Paolo; Hamilton, P.; Palatella, Luigi & Raffaelli, G.
Object Type: Article
System: The UNT Digital Library
Mega et al. Reply (open access)

Mega et al. Reply

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.
Date: March 26, 2004
Creator: Mega, Mirko S.; Allegrini, Paolo; Grigolini, Paolo; Latora, Vito; Palatella, Luigi; Rapisarda, Andrea et al.
Object Type: Article
System: The UNT Digital Library
Scaling Breakdown: A Signature of Aging (open access)

Scaling Breakdown: A Signature of Aging

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.
Date: July 12, 2002
Creator: Allegrini, Paolo; Bellazzini, Jacopo; Bramanti, G.; Ignaccolo, Massimiliano; Grigolini, Paolo & Yang, J.
Object Type: Article
System: The UNT Digital Library
Linear Response to Perturbation of Nonexponential Renewal Processes (open access)

Linear Response to Perturbation of Nonexponential Renewal Processes

This article discusses the linear response to perturbation of nonexponential renewal processes.
Date: November 23, 2005
Creator: Barbi, Francesco; Bologna, Mauro & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
Quantum Entanglement and Entropy (open access)

Quantum Entanglement and Entropy

This article discusses quantum entanglement and entropy.
Date: August 20, 2001
Creator: Giraldi, Filippo & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
Absorption and Emission in the Non-Poissonian Case (open access)

Absorption and Emission in the Non-Poissonian Case

Article on absorption and emission in the Non-Poissonian Case.
Date: July 28, 2004
Creator: Aquino, Gerardo; Palatella, Luigi & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
Solar Turbulence in Earth's Global and Regional Temperature Anomalies (open access)

Solar Turbulence in Earth's Global and Regional Temperature Anomalies

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.
Date: February 26, 2004
Creator: Scafetta, Nicola; Grigolini, Paolo; Imholt, Timothy; Roberts, James A. & West, Bruce J.
Object Type: Article
System: The UNT Digital Library
Random Growth of Interfaces as a Subordinated Process (open access)

Random Growth of Interfaces as a Subordinated Process

Article discussing the random growth of interfaces as a subordinated process.
Date: July 30, 2004
Creator: Failla, Roberto; Grigolini, Paolo; Ignaccolo, Massimiliano & Schwettmann, Arne
Object Type: Article
System: The UNT Digital Library
Aging and Rejuvenation with Fractional Derivatives (open access)

Aging and Rejuvenation with Fractional Derivatives

This article discusses aging rejuvenation with fractional derivatives.
Date: September 10, 2004
Creator: Aquino, Gerardo; Bologna, Mauro; Grigolini, Paolo & West, Bruce J.
Object Type: Article
System: The UNT Digital Library
Power-Law Time Distribution of Large Earthquakes (open access)

Power-Law Time Distribution of Large Earthquakes

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.
Date: May 2003
Creator: Mega, Mirko S.; Allegrini, Paolo; Grigolini, Paolo; Latora, Vito; Palatella, Luigi; Rapisarda, Andrea et al.
Object Type: Article
System: The UNT Digital Library
Scaling Detection in Time Series: Diffusion Entropy Analysis (open access)

Scaling Detection in Time Series: Diffusion Entropy Analysis

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).
Date: September 25, 2002
Creator: Scafetta, Nicola & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
Long- and Short-Time Analysis of Heartbeat Sequences: Correlation with Mortality Risk in Congestive Heart Failure Patients (open access)

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

Article discussing long- and short-time analysis of heartbeat sequences and the 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.
Object Type: Article
System: The UNT Digital Library
Vortex Dynamics in Evolutive Flows: A Weakly Chaotic Phenomenon (open access)

Vortex Dynamics in Evolutive Flows: A Weakly Chaotic Phenomenon

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.
Date: 2003
Creator: Bellazzini, Jacopo; Menconi, Giulia; Ignaccolo, Massimiliano; Buresti, Guido & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
Generalized Master Equation Via Aging Continuous-Time Random Walks (open access)

Generalized Master Equation Via Aging Continuous-Time Random Walks

This article discusses the problem of the equivalence between continuous-time random walk (CTRW) and generalized master equation (GME).
Date: 2003
Creator: Allegrini, Paolo; Aquino, Gerardo; Grigolini, Paolo; Palatella, Luigi & Rosa, Angelo
Object Type: Article
System: The UNT Digital Library