Results 191 to 200 of about 5,214 (240)

Fast MR signal simulations of microvascular and diffusion contributions using histogram‐based approximation and recurrent neural networks

Magnetic Resonance in Medicine, Volume 94, Issue 5, Page 2234-2248, November 2025.
Abstract Purpose Accurate MR signal simulation, including microvascular structures and water diffusion, is crucial for MRI techniques like fMRI BOLD modeling and MR vascular Fingerprinting (MRF), which use susceptibility effects on MR signals for tissue characterization.
Thomas Coudert, Maitê Silva Martins Marçal, Aurélien Delphin, Antoine Barrier, Lila Cunge, Loïc Legris, Jan M. Warnking, Benjamin Lemasson, Emmanuel L. Barbier, Thomas Christen   +9 more
wiley   +1 more source

Quantitative analysis of stem-palaeognath flight capabilities sheds light on ratite dispersal and flight loss. [PDF]

Biol Lett
Widrig K, Alfieri F, Kuo PC, James H, Field DJ.   +4 more
europepmc   +1 more source

Geometric Asian option pricing under the environment of a mixed fractional Brownian motion and discrete dividend payments

Wenjie Liang, Guitian He, W. F. Zhang, Zhiyong Huang, Jiahui Lai   +4 more
openalex   +1 more source

Hitting distributions of geometric Brownian motion

, 2005
T. Byczkowski, Michał Ryznar
openalex   +2 more sources

QRS Detection in Noisy Electrocardiogram Based on Multi‐Parameter Constrained Stochastic Resonance

IEEJ Transactions on Electrical and Electronic Engineering, Volume 20, Issue 11, Page 1745-1756, November 2025.
One major challenge of QRS wave detection is the deleterious impact of inevitable noise in electrocardiogram (ECG) signals, which can deteriorate the detection performance of algorithms. Previous research has shown a nonlinear monostable potential‐based algorithm for enhancing the QRS complex in a noisy environment. Its main mechanism is the stochastic
Wenyu Shang, Masaki Sekino
wiley   +1 more source

Long-fuse evolution of carnivoran skeletal phenomes through the Cenozoic

Law C, Hlusko L, Tseng J.
europepmc   +1 more source

Concurrent diffusion of nicotinic acetylcholine receptors and fluorescent cholesterol disclosed by two-colour sub-millisecond MINFLUX-based single-molecule tracking. [PDF]

Nat Commun
Reina F, Saavedra LA, Eggeling C, Barrantes FJ.   +3 more
europepmc   +1 more source

GEOMETRIC BROWNIAN MOTION WITH JUMP DIFFUSION AND VALUE AT RISK ANALYSIS OF PT BANK NEGARA INDONESIA STOCKS

Ainun Zakiah, Evy Sulistianingsih, Neva Satyahadewi   +2 more
openalex   +1 more source

Geometrical Brownian Motion Driven by Color Noise

, 2007
Ryszard Zygadło
openalex   +2 more sources

Target Return Strategy

Financial Review, Volume 60, Issue 4, Page 1483-1503, November 2025.
ABSTRACT We study the target return strategy (TRS), which exits the market once the return reaches a preset target. We show that the holding‐period return (HPR) cannot mean‐variance dominate TRS, but TRS can mean‐variance dominate HPR. We theoretically analyze TRS and quantitatively illustrate that training targets by a mean‐variance utility ...
Ying Xue, Zheng Wen, Xu Jiang
wiley   +1 more source