Results 81 to 90 of about 235,462 (293)
Phase Diagram for Turbulent Transport: Sampling Drift, Eddy Diffusivity and Variational Principles [PDF]
, 1999 We study the long-time, large scale transport in a three-parameter family of isotropic, incompressible velocity fields with power-law spectra. Scaling law for transport is characterized by the scaling exponent $q$ and the Hurst exponent $H$, as functions
Albert C. Fannjiang +27 more
core +5 more sources
Fluctuation and Noise Letters, 2020 We aim at detecting stress in newborns by observing heart rate variability (HRV). The HRV features nonlinearities. Fractal dynamics is a usual way to model them and the Hurst exponent summarizes the fractal information.
M. Šapina +5 more
semanticscholar +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT Direct enrollment (DE) study abroad programs offer linguistic and cultural immersion by allowing students to enroll in coursework at partner universities worldwide. However, there is limited research on students’ perspectives of such programs and the necessary measures for success.
Jillian M. Pandor +2 more
wiley +1 more source
Dynamic Hurst Exponent in Time Series
, 2019 The market efficiency hypothesis has been proposed to explain the behavior of time series of stock markets. The Black-Scholes model (B-S) for example, is based on the assumption that markets are efficient. As a consequence, it is impossible, at least in principle, to "predict" how a market behaves, whatever the circumstances.
Campos, Carlos Arturo Soto +2 more
openaire +2 more sources
Journal of Advanced Nursing, EarlyView.ABSTRACT Aims To evaluate whether information about patients' poor sense of security in hypothetical vignette scenarios increases nurses' projected intent to report safety events. Design Quantitative, cross‐sectional factorial survey vignette experiment administered online.
Patricia S. Groves +3 more
wiley +1 more source
Spectrum-based estimators of the bivariate Hurst exponent [PDF]
Physical Review E, 2014 We introduce two new estimators of the bivariate Hurst exponent in the power-law cross-correlations setting -- the cross-periodogram and local $X$-Whittle estimators -- as generalizations of their univariate counterparts. As the spectrum-based estimators are dependent on a part of the spectrum taken into consideration during estimation, a simulation ...
openaire +3 more sources
Journal of Applied Social Psychology, EarlyView.ABSTRACT Over the past two decades, weight stigma has remained a pervasive form of bias. Healthcare providers are among the most frequent sources of weight‐based discrimination, with significant consequences for patient trust, healthcare utilization, and outcomes.
Justin Shields, Joel Cooper
wiley +1 more source
Anomaly Detection in Fractal Time Series with LSTM Autoencoders
MathematicsThis study explores the application of neural networks for anomaly detection in time series data exhibiting fractal properties, with a particular focus on changes in the Hurst exponent.
Lyudmyla Kirichenko +3 more
doaj +1 more source
Self-affine subglacial roughness: consequences for radar scattering and basal water discrimination in northern Greenland [PDF]
The Cryosphere, 2017 Subglacial roughness can be determined at a variety of length scales from radio-echo sounding (RES) data either via statistical analysis of topography or inferred from basal radar scattering.
T. M. Jordan +6 more
doaj +1 more source
Winter predatory efficiency and periodicity of the non‐native brown bullhead Ameiurus nebulosus
Journal of Fish Biology, EarlyView.Abstract Winter is a challenge for fish in temperate regions as it is likely to create a bottleneck for small‐bodied fish due to starvation. Resource consumption could contribute substantially to the overwinter survival of fish. Nevertheless, fish feeding activity and related impacts at low temperatures are understudied.
Alan Fritsch +5 more
wiley +1 more source