Results 171 to 180 of about 6,279 (248)

Effects of Physical Activity on Brain White Matter Integrity Are Region‐, Dose‐, and Age‐Dependent: Findings From the Population‐Based Rhineland Study

open access: yesAging Cell, Volume 25, Issue 8, August 2026.
Physical activity is related to more aligned white matter fibers and microstructural reorganization of the brain. Body weight, cardiometabolic, and inflammatory factors could partly mediate the effects of physical activity on brain white matter microstructure. The effects of physical activity on the brain are age‐ and region‐specific.
Eva Saxler   +7 more
wiley   +1 more source

Vision Transformers for Modeling of Nonlinear Heterogeneous Materials

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 14, 30 July 2026.
ABSTRACT Multiscale simulations of nonlinear heterogeneous materials and composites are challenging due to the prohibitive computational costs of high‐fidelity simulations. Recently, machine learning (ML) based approaches have emerged as promising alternatives to traditional multiscale methods.
Yijing Zhou, Shabnam J. Semnani
wiley   +1 more source

Shear Fault Formation in Granite Under High and Transient Co‐Seismic Strain Rates Unveiled by Ultra‐Fast X‐Ray Imaging

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract During an earthquake a dynamic rupture propagates, causing fractures and permanent damage that modify the mechanical properties of the fault and its surroundings. Reciprocally, the energy dissipated by the mechanical transformation of the fault rock has a direct feedback on the dynamics of the seismic rupture.
A. R. Vishnu   +5 more
wiley   +1 more source

Analysis of the Charge Structure and Lightning Activity During a Severe Beijing Thunderstorm via an Innovative Balloon‐Borne 3D Electric Field Observation System

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract We developed an innovative balloon‐borne observation system based on China's BeiDou sounding platform that integrates a three‐axis electric field sensor for in‐cloud measurements of thunderstorm electrification. On 13 May 2025, this system was deployed during a severe convective storm over Beijing. In combination with multisource observations,
Ye Tian   +10 more
wiley   +1 more source

Sub‐Ensemble Isolation in SERF Magnetometry Enabled by Micrometer‐Scale Polarization Control

open access: yesNanophotonics, Volume 15, Issue 14, 27 July 2026.
Inter‐channel crosstalk caused by atomic diffusion fundamentally limits the spatial resolution of single‐cell multi‐channel SERF magnetometers. In this work, a spatial‐variant polarization metasurface is employed to achieve effective sub‐ensemble isolation within a single SERF atomic ensemble, which enables the suppression of inter‐channel crosstalk ...
Yuhao Zhang   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy