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  Partner: UNT College of Arts and Sciences
 Department: Center for Nonlinear Science
 Collection: UNT Scholarly Works
Short- and Long-Term Statistical Properties of Heartbeat Time-Series in Healthy and Pathological Subjects

Short- and Long-Term Statistical Properties of Heartbeat Time-Series in Healthy and Pathological Subjects

Date: October 2002
Creator: Allegrini, Paolo; Balocchi, Rita; Chillemi, Santi; Grigolini, Paolo; Palatella, Luigi & Raffaelli, G.
Description: Paper discussing short- and long-term statistical properties of heartbeat time-series in healthy and pathological subjects.
Contributing Partner: UNT College of Arts and Sciences
Conflict between trajectories and density description: the statistical source of disagreement

Conflict between trajectories and density description: the statistical source of disagreement

Date: December 2002
Creator: Allegrini, Paolo; Grigolini, Paolo; Palatella, Luigi & Rosa, Angelo
Description: Paper discussing the statistical source of disagreement between trajectories and density description.
Contributing Partner: UNT College of Arts and Sciences
Cognitive Scale-Free Networks as a Model for Intermittency in Human Natural Language

Cognitive Scale-Free Networks as a Model for Intermittency in Human Natural Language

Date: 2003
Creator: Allegrini, Paolo; Grigolini, Paolo & Palatella, Luigi
Description: Paper discussing cognitive scale-free networks as a model for intermittency in human natural language.
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
In the search for the low-complexity sequences in prokaryotic and eukaryotic genomes: how to derive a coherent picture from global and local entropy measures

In the search for the low-complexity sequences in prokaryotic and eukaryotic genomes: how to derive a coherent picture from global and local entropy measures

Date: 2003
Creator: Acquisti, Claudia; Allegrini, Paolo; Bogani, Patrizia; Buiatti, Marcello, 1937-; Catanese, Elena; Fronzoni, Leone et al.
Description: Paper discussing the search for the low-complexity sequences in prokaryotic and eukaryotic genomes and how to derive a coherent picture from global and local entropy measures.
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
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
Compression and Diffusion: A Joint Approach to Detect Complexity

Compression and Diffusion: A Joint Approach to Detect Complexity

Date: February 2003
Creator: Allegrini, Paolo; Benci, V. (Vieri); Grigolini, Paolo; Hamilton, P.; Ignaccolo, Massimiliano; Menconi, Giulia et al.
Description: Article discussing a joint approach to detect complexity by combining the Compression Algorithm Sensitive To Regularity (CASToRe) and Complex Analysis of Sequences via Scaling AND Randomness Assessment (CASSANDRA) procedures.
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
Decoherence, wave function collapses and non-ordinary statistical mechanics

Decoherence, wave function collapses and non-ordinary statistical mechanics

Date: August 2003
Creator: Bologna, Mauro; Grigolini, Paolo; Pala, Marco G. & Palatella, Luigi
Description: Article discussing decoherence, wave function collapses, and non-ordinary statistical mechanics.
Contributing Partner: UNT College of Arts and Sciences
Reply to the Comment  "Intercluster correlation in Seismicity" by Helmstetter and Sornette

Reply to the Comment "Intercluster correlation in Seismicity" by Helmstetter and Sornette

Date: September 15, 2003
Creator: Mega, Mirko S.; Allegrini, Paolo; Grigolini, Paolo; Latora, Vito; Palatella, Luigi; Rapisarda, Andrea et al.
Description: This paper is a reply to the comment by Helmstetter and Sornette titled "Intercluster correlation in Seismicity" which addresses an important point in a paper written by the authors that needs to be clarified.
Contributing Partner: UNT College of Arts and Sciences
Detection of invisible and crucial events: from seismic fluctuations to the war against terrorism

Detection of invisible and crucial events: from seismic fluctuations to the war against terrorism

Date: October 28, 2003
Creator: Allegrini, Paolo; Fronzoni, Leone; Grigolini, Paolo; Latora, Vito; Mega, Mirko S.; Palatella, Luigi et al.
Description: Paper discussing the detection of invisible and crucial events.
Contributing Partner: UNT College of Arts and Sciences
Intermittency and scale-free networks: a dynamical model for human language complexity

Intermittency and scale-free networks: a dynamical model for human language complexity

Date: 2004
Creator: Allegrini, Paolo; Grigolini, Paolo & Palatella, Luigi
Description: Article discussing intermittency, scale-free networks, and a dynamical model for human language complexity.
Contributing Partner: UNT College of Arts and Sciences
Non-Poisson distribution of the time distances between two consecutive clusters of earthquakes

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.
Description: Article discussing non-Poisson distribution of the time distances between two consecutive clusters of earthquakes.
Contributing Partner: UNT College of Arts and Sciences
Non-Poisson processes: regression to equilibrium versus equilibrium correlation functions

Non-Poisson processes: regression to equilibrium versus equilibrium correlation functions

Date: 2004
Creator: Allegrini, Paolo; Grigolini, Paolo; Palatella, Luigi; Rosa, Angelo & West, Bruce J.
Description: Paper discussing non-Poisson processes and regression to equilibrium versus equilibrium correlation functions.
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
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
Stromatolites: why do we care?

Stromatolites: why do we care?

Date: April 2004
Creator: Ignaccolo, Massimiliano; Schwettmann, Arne; Failla, Roberto; Storrie-Lombardi, Michael C. & Grigolini, Paolo
Description: Article discussing stromatolites. The authors apply the method of Diffusion Entropy (DE) to the study of stromatolites by means of a two-dimensional procedure that makes it possible for us to compare the DE analysis to the results of a compression method.
Contributing Partner: UNT College of Arts and Sciences
Towards the timely detection of toxicants

Towards the timely detection of toxicants

Date: April 2004
Creator: Ignaccolo, Massimiliano; Grigolini, Paolo & Gross, Guenter W.
Description: Article discussing the problem of enhancing the sensitivity of biosensors to the influence of toxicants, with an entropy method of analysis, denoted as CASSANDRA, for the specific purpose of studying non-stationary time series.
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
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
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
Non-Poisson Dichotomous Noise: Higher-Order Correlation Functions and Aging

Non-Poisson Dichotomous Noise: Higher-Order Correlation Functions and Aging

Date: October 26, 2004
Creator: Allegrini, Paolo; Grigolini, Paolo; Palatella, Luigi & West, Bruce J.
Description: This article discusses non-Poisson dichotomous noise and higher-order correlation functions and aging.
Contributing Partner: UNT College of Arts and Sciences
Correlation Function and Generalized Master Equation of Arbitrary Age

Correlation Function and Generalized Master Equation of Arbitrary Age

Date: June 10, 2005
Creator: Allegrini, Paolo; Aquino, Gerardo; Grigolini, Paolo; Palatella, Luigi; Rosa, Angelo & West, Bruce J.
Description: Article discussing research on correlation function and generalized master equation of arbitrary age.
Contributing Partner: UNT College of Arts and Sciences