Vivian Machado Cusin Ahmed El-Dash

Validation of the Area1 of Approximate Entropy (a1ApEn) in Empirical Data of Heart Rate

Vivian Machado Cusin Ahmed El-Dash, Ingird Machado Cusin Ahmed El-Dash, José Eduardo Soubhia Natali, Paulo Nogueira Starzynski & José Guilherme Chaui-Berlinck · Current Journal of Applied Science and Technology · 2017

Aims: To validate the use of the non-linear estimator a1ApEn in empirical data. Study Design: Comparison of heart rate variability/complexity (HRV/C) between rest and low intensity exercise. Methodology: R-R intervals were obtained from electrocardiogram recordings in 15 healthy...

Open access Research Article 10.9734/CJAST/2017/38488

Size-Related Properties of Area1 of Approximate Entropy to Characterize Time-series Organization

José Eduardo Soubhia Natali, Paulo Nogueira Starzynski, Ingird Machado Cusin Ahmed El-Dash, Thiago Paes de Barros de Luccia, Vivian Machado Cusin Ahmed El-Dash & José Guilherme Chaui-Berlinck · Current Journal of Applied Science and Technology · 2016

Aims: There are several entropy estimators to address the organization of time-series. However, the behavior of a given estimator in relation to the size N of the data is not often studied in terms of improving the analysis. Here, we investigate size-related properties of the est...

Open access Research Article 10.9734/BJAST/2016/29596