Results 191 to 200 of about 1,583 (283)

A Subtracted‐Added‐Divided Inversion Recovery (dSIR) Approach to Visualise the Effects of Microstructure on T1 Contrast in Human White Matter

open access: yesNMR in Biomedicine, Volume 38, Issue 7, July 2025.
TI images collected with short (300ms/600ms, 3T/7T) and long TI (600ms/1000ms, 3T/7T) were processed using the dSIR approach to visualise effects of white matter (WM) microstructure on T1 contrast. Short T1 resulting from relaxation anisotropy in WM tracts with close to perpendicular orientation to B0 was visualised by excellent dSIR contrast against ...
Risto A. Kauppinen   +4 more
wiley   +1 more source

A Latent‐Class Model for Time‐To‐Event Outcomes and High‐Dimensional Imaging Data

open access: yesStatistics in Medicine, Volume 44, Issue 15-17, July 2025.
ABSTRACT Structural magnetic resonance imaging (MRI) is one of the primary predictors of Alzheimer's disease risk, enabling the identification of patients with similar risk profiles for precision medicine treatment. Motivated by the need for flexible modeling in AD research, we propose a latent‐class model that addresses the heterogeneity within study ...
Jiahui Feng   +4 more
wiley   +1 more source

Tensor products of idempotent semimodules. An algebraic approach

open access: green, 2001
Grigori Litvinov   +2 more
openalex   +2 more sources

Diffusive Equilibrium: Modeling Anisotropic Maxwellian and Kappa Field Line Distributions in Io's Plasma Torus Using Multi‐Fluid and Kinetic Approaches

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 7, July 2025.
Abstract Modeling density distributions along Jupiter's magnetic field lines is essential for understanding the Io plasma torus, moon plasma interactions, and plasma throughout the magnetosphere. This study compares multi‐fluid and kinetic approaches to diffusive equilibrium and the effects of different plasma distribution functions and anisotropy.
Edward G. Nerney
wiley   +1 more source

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