Results 11 to 20 of about 377 (102)

Time-varying delays in electrophysiological wave propagation along cardiac tissue and minimax control problems associated with uncertain bidomain type models

AIMS Mathematics, 2019
Motivated by topics and issues critical to human health, the problem studied in this work derives from the modeling and stabilizing control of electrical cardiac activity in order to maximize the efficiency and safety of treatment for cardiac disease ...
Aziz Belmiloudi
doaj   +1 more source

A novel hybrid fractional approach to nonlinear dynamics of HIV transmission among men who have sex with men in Taiwan

AIMS Mathematics
In Taiwan, human immunodeficiency virus (HIV) transmission occurs primarily among men who have sex with men (MSM). High-risk behaviors within this population contribute significantly to the variability and spread of the virus.
Sana Ullah Saqib, Ali Hasan, Yin-Tzer Shih   +2 more
doaj   +1 more source

Numerical simulation of a fractional glucose-insulin model via successive approximation and ABM schemes

AIMS Mathematics
We developed a fractional-order glucose–insulin regulatory model in the Caputo sense to encode memory effects in metabolic dynamics. The three-equation nonlinear system employed component-wise fractional orders to represent heterogeneous memory depths ...
Muflih Alhazmi, Safa M. Mirgani, A. F. Aljohani, Sayed Saber   +3 more
doaj   +1 more source

Pupil Plane Multiplexing for Vectorial Fourier Ptychography

Laser &Photonics Reviews, EarlyView.
This study proposes a cost‐effective, modality‐adaptive multichannel microscopy framework using pupil‐plane multiplexing. A custom pupil aperture at the Fourier plane encodes channel‐specific transfer functions with spectral or polarization filters, and model‐based reconstruction with channel‐dependent priors decodes them.
Hyesuk Chae, Kyungwon Lee, Yong Guk Kang, Hansol Yoon, Kyung Chul Lee, Seung Ah Lee   +5 more
wiley   +1 more source

Toward Super‐Resolution Reconstruction of Diffusion–Relaxation MRI Using Slice Excitation With Random Overlap (SERO)

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Diffusion MRI probes tissue microstructure, but low SNR and limited resolution hinder detection of features and parameter estimates. We introduce slice excitation with random overlap (SERO), which enables variable repetition times (TRs) and diffusion weighting within a single shot.
Felix Mortensen, Jakub Jurek, Jens Sjölund, Geraline Vis, Ronnie Wirestam, Malwina Molendowska, Andrzej Materka, Filip Szczepankiewicz   +7 more
wiley   +1 more source

Insights into mathematical model with efficient control measures for lumpy skin disease of cattle considering the presence of contaminated environment

Journal of Biological Dynamics
In this paper, we introduce a mathematical simulation that captures the dynamics of lumpy skin disease (LSD) by considering three key transmission paths: vector-borne, direct cattle-to-cattle contact and environmental contamination.
Faizah J. Alanazi, Hegagi M. Ali, Essam M. Elsaid, Mohamed R. Eid, W. S. Hassanin   +4 more
doaj   +1 more source

Qualitative and sensitivity analysis on simple epidemic model (SIR-MODEL): ensuring well-posedness and stability

Journal of Statistical Sciences and Computational Intelligence
This study investigates the dynamics of infectious disease transmission using an SIR (Susceptible-Infected-Recovered) model. We examine the model’s positivity, equilibrium points, basic reproduction number using the next generation matrix method, and sensitivity to key parameters using the sensitivity index method.
Auwal Lawan, Abubakar Salihu, Ismail Ahmad, Jibril Abdullahi, Umar Abdullahi   +4 more
openaire   +1 more source

Macroscopic Market Making Games

Mathematical Finance, EarlyView.
ABSTRACT Building on the macroscopic market making framework as a control problem, this paper investigates its extension to stochastic games. In the context of price competition, each agent is benchmarked against the best quote offered by the others. We begin with the linear case.
Ivan Guo, Shijia Jin
wiley   +1 more source

Accelerated Diffusion Basis Spectrum Imaging With Tensor Computations

Human Brain Mapping, Volume 47, Issue 2, February 1, 2026.
We introduce a new framework for accelerated processing of diffusion‐weighted imaging (DWI) data using a machine learning approach to optimize parameter estimation. We demonstrate that this new method, called DBSIpy, significantly improves computational speed and robustness to Rician noise compared to the standard DBSI method, with the improvements ...
Kainen L. Utt, Jacob S. Blum, Donsub Rim, Sheng‐Kwei Song   +3 more
wiley   +1 more source

Ill-posedness in limited discrete Fourier inversion and regularization for quasi distributions in LaMET

European Physical Journal C: Particles and Fields
We systematically investigated the limited inverse discrete Fourier transform of the quasi distributions from the perspective of inverse problem theory. This transformation satisfies two of Hadamard’s well-posedness criteria, existence and uniqueness of ...
Ao-Sheng Xiong, Jun Hua, Yu-Fei Ling, Ting Wei, Fu-Sheng Yu, Qi-An Zhang, Yong Zheng   +6 more
doaj   +1 more source