UNT College of Arts and Sciences - 14 Matching Results

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Atomic structure of steps and defects on the clean diamond (100)-2 X 1 surface studied using ultrahigh vacuum scanning tunneling microscopy

Article discussing the atomic structure of steps and defects on the clean diamond (100)-2 X 1 surface studied using ultrahigh vacuum scanning tunneling microscopy.

Date: December 9, 2002

Creator: Stallcup, Richard E. & Pérez, José M.

Item Type: Article

open access

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

Paper discussing the statistical source of disagreement between trajectories and density description.

Date: December 2002

Creator: Allegrini, Paolo; Grigolini, Paolo; Palatella, Luigi & Rosa, Angelo

Item Type: Paper

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

Item Type: Article

open access

Electronic and field emission properties of boron nitride/carbon nanotube superlattices

Article on electronic and field emission properties of boron nitride/carbon nanotube superlattices.

Date: July 1, 2002

Creator: Meunier, Vincent; Roland, Christopher; Bernholc, Jerry & Buongiorno Nardelli, Marco

Item Type: Article

open access

Erratum: "Is there a metallicity-luminosity relationship in active galactic nuclei? The case of narrow-line Seyfert 1 galaxies"

This erratum corrects a computational error affecting the calculation of the intrinsic luminosities of several objects in the article "Is there a metallicity-luminosity relationship in active galactic nuclei? The case of narrow-line Seyfert 1 galaxies." This does not affect any of the main results of the article.

Date: April 10, 2002

Creator: Shemmer, Ohad & Netzer, Hagai

Item Type: Article

open access

Is There a Metallicity-Luminosity Relationship in Active Galactic Nuclei? The Case of Narrow-Line Seyfert 1 Galaxies

This article discusses the relationship between metallicity and luminosity in active galactic nuclei by introducing new metallicity measurements for a sample of narrow-line Seyfert 1 galaxies.

Date: February 8, 2002

Creator: Shemmer, Ohad & Netzer, Hagai

Item Type: Article

open access

Lévy Scaling: The Diffusion Entropy Analysis Applied to DNA Sequences

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.

Date: September 20, 2002

Creator: Scafetta, Nicola; Latora, Vito & Grigolini, Paolo

Item Type: Article

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.

Item Type: Article

open access

Real event detection and the treatment of congestive heart failure: an efficient technique to help cardiologists to make crucial decisions

Paper discussing the treatment of congestive heart failure. Abstract: Using a method of entropic analysis of time series we establish the correlation between heartbeat long-range memory and mortality risk in patients with congestive heart failure.

Date: September 2002

Creator: Allegrini, Paolo; Balocchi, Rita; Chillemi, Santi; Grigolini, Paolo; Hamilton, P.; Maestri, Roberto et al.

Item Type: Paper

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.

Item Type: Article

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

Item Type: Article

open access

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

Paper discussing 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.

Item Type: Paper

open access

Supernova 2002ap: the first month

This article reports the results of the first month of an intensive photometric and spectroscopic monitoring campaign of Supernova 2002ap.

Date: March 27, 2002

Creator: Gal-Yam, Avishay; Ofek, Efran & Shemmer, Ohad

Item Type: Article

open access

Ultimate strength of carbon nanotubes: A theoretical study

Article on a theoretical study of the ultimate strength of carbon nanotubes.

Date: March 27, 2002

Creator: Zhao, Qingzhong; Buongiorno Nardelli, Marco & Bernholc, Jerry

Item Type: Article

UNT College of Arts and Sciences - 14 Matching Results

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Atomic structure of steps and defects on the clean diamond (100)-2 X 1 surface studied using ultrahigh vacuum scanning tunneling microscopy

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

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

Electronic and field emission properties of boron nitride/carbon nanotube superlattices

Erratum: "Is there a metallicity-luminosity relationship in active galactic nuclei? The case of narrow-line Seyfert 1 galaxies"

Is There a Metallicity-Luminosity Relationship in Active Galactic Nuclei? The Case of Narrow-Line Seyfert 1 Galaxies

Lévy Scaling: The Diffusion Entropy Analysis Applied to DNA Sequences

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

Real event detection and the treatment of congestive heart failure: an efficient technique to help cardiologists to make crucial decisions

Scaling Breakdown: A Signature of Aging

Scaling Detection in Time Series: Diffusion Entropy Analysis

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

Supernova 2002ap: the first month

Ultimate strength of carbon nanotubes: A theoretical study