Results 41 to 50 of about 89,082 (267)

Chaos for Discrete Dynamical System

Journal of Applied Mathematics, 2013
We prove that a dynamical system is chaotic in the sense of Martelli and Wiggins, when it is a transitive distributively chaotic in a sequence. Then, we give a sufficient condition for the dynamical system to be chaotic in the strong sense of Li-Yorke ...
Lidong Wang, Heng Liu, Yuelin Gao
doaj   +1 more source

Determining Parental Factors for Clinical Trial Attrition in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Despite high enrollment rates on Children's Oncology Group (COG) protocols, attrition after initial consent is challenging, introducing bias and prolonging trial completion. While adult oncology literature has identified predictors of withdrawal, little is known about caregiver decision‐making for child participation in ...
Kimberly L. Stathas, Jakob Q. Weiss, Kellee N. Parker, Cathy Lee‐Miller   +3 more
wiley   +1 more source

Double projection for reconstructing dynamical systems: between stochastic and deterministic regimes

Machine Learning: Science and Technology
Learning stochastic models of dynamical systems from observed data is of interest in many scientific fields. For reliable use in scientific applications, trained models must be able to reproduce the observed dynamics, remain amenable to analysis by ...
Viktor Sip, Martin Breyton, Spase Petkoski, Viktor Jirsa   +3 more
doaj   +1 more source

Jacobi Stability Analysis of Liu System: Detecting Chaos

Mathematics
By utilizing the Kosambi–Cartan–Chern (KCC) geometric theory, this paper is dedicated to providing novel insights into the Liu dynamical system, which stands out as one of the most distinctive and noteworthy nonlinear dynamical systems.
Qinghui Liu, Xin Zhang
doaj   +1 more source

Autoregressive models as a tool to discriminate chaos from randomness in geoelectrical time series: an application to earthquake prediction

Annals of Geophysics, 1997
The time dynamics of geoelectrical precursory time series has been investigated and a method to discriminate chaotic behaviour in geoelectrical precursory time series is proposed.
C. Serio, M. Macchiato, V. Lapenna, V. Cuomo   +3 more
doaj   +1 more source

Towards Higher-Order Zeroing Neural Networks for Calculating Quaternion Matrix Inverse with Application to Robotic Motion Tracking

Mathematics, 2023
The efficient solution of the time-varying quaternion matrix inverse (TVQ-INV) is a challenging but crucial topic due to the significance of quaternions in many disciplines, including physics, engineering, and computer science.
Rabeh Abbassi, Houssem Jerbi, Mourad Kchaou, Theodore E. Simos, Spyridon D. Mourtas, Vasilios N. Katsikis   +5 more
doaj   +1 more source

A Bibliometric Analysis of Publications in Uremic Toxins From 1991 to 2024

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Uremic toxins are a growing area of research in nephrology, with significant implications in the progression and treatment of chronic kidney disease (CKD) and the management of end‐stage kidney disease (ESKD). This bibliometric analysis aims to evaluate the global research trends, key contributors, and the impact of publications in ...
Yuh‐Shan Ho, Karim M. Soliman, Wisit Cheungpasitporn, Wannasit Wathanavasin, Ahmed Daoud, Ahmed I. Kamal, Balázs Szamosfalvi, Tibor Fülöp   +7 more
wiley   +1 more source

Hierarchical Trust-Tech-Enhanced K-Means Methods and Their Applications to Power Grids

IEEE Open Access Journal of Power and Energy, 2022
K-means has been widely used in solving a wide range of clustering problems arising in engineering and industrial applications, but it still suffers from several issues. To address these issues, a hierarchical K-means method enhanced by Trust-Tech (H-KTT)
Hsiao-Dong Chiang, Tian-Shi Xu, Xian-Long Lv, Na Dong   +3 more
doaj   +1 more source

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono, Yoshifumi Moriyama, Koji Ohashi, Naoya Otaka, Minako Tatsumi, Toyoaki Murohara, Noriyuki Ouchi, Satoru Oshima   +7 more
wiley   +1 more source

On Targeted Control over Trajectories of Dynamical Systems Arising in Models of Complex Networks

Mathematics, 2023
The question of targeted control over trajectories of systems of differential equations encountered in the theory of genetic and neural networks is considered. Examples are given of transferring trajectories corresponding to network states from the basin
Diana Ogorelova, Felix Sadyrbaev, Inna Samuilik   +2 more
doaj   +1 more source