Results 151 to 160 of about 141,500 (254)

Miniaturized optically generated Bessel beam ultrasound for volumetric transcranial brain stimulation. [PDF]

Sci Adv
Li Y, Chen G, Oliveira TR, Todd N, Zhang YZ, Marar C, Zheng N, Lan L, McDannold N, Cheng JX, Yang C.   +10 more
europepmc   +1 more source

Jointly Learned 3D Non‐Cartesian Sampling With Wave Encoding and Reconstruction for Neurovascular Phase Contrast MRI

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2554-2567, May 2026.
ABSTRACT Purpose To develop accelerated 3D phase contrast (PC) MRI using jointly learned wave encoding and reconstruction. Methods Pseudo‐fully sampled neurovascular 4D flow data (N = 40) and a simulation framework were used to learn phase encoding locations, wave readout parameters, and model‐based reconstruction network (MoDL) for a rapid 3D PC scan (
Chenwei Tang, Brock W. Jolicoeur, James Rice, Caroline A. Doctor, Zaynab S. Yardim, Leonardo A. Rivera‐Rivera, Laura B. Eisenmenger, Kevin M. Johnson   +7 more
wiley   +1 more source

Hyperspectral coherent anti-Stokes Raman scattering volumetric projection microscopy for assessing drug-cell interaction. [PDF]

Biomed Opt Express
Zhang C, Li Y, Yang Q, Fang Y, Zhang G, Zhou S, Hu R, Qu J, Liu L.   +8 more
europepmc   +1 more source

Repeatability of Rapid Human Cardiac Phosphorus MRSI (31P‐MRSI) Using Concentric Ring Trajectory Readouts at 7 T

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2508-2514, May 2026.
ABSTRACT Purpose PCr/ATP ratio is determined at 7 T typically using Fourier‐transform based magnetic resonance spectroscopic imaging sequences (FT‐MRSI). These sequences require acquisition times longer than desirable for inclusion in cardiac clinical trials. Concentric ring trajectory (CRT‐MRSI) has been described as an accelerated alternative k‐space
Ferenc E. Mózes, William T. Clarke, Andrew Tyler, Jabrane Karkouri, Fabian Niess, Jack J. J. J. Miller, Christopher T. Rodgers, Wolfgang Bogner, Ladislav Valkovič   +8 more
wiley   +1 more source

Floquet angular modulation for 6G systems. [PDF]

Sci Rep
Hamdi B, Aloui R, Aldalbahi AS, Delleji T, Mhatli S, Aguili T, Llamas-Garro I, Siala A.   +7 more
europepmc   +1 more source

Stochastic Dynamics From Maximum Entropy in Action Space

Fortschritte der Physik, Volume 74, Issue 5, May 2026.
ABSTRACT We develop an information‐theoretic formulation of stochastic dynamics in which the fundamental stochastic variable is the total action connecting spacetime points, rather than individual paths. By maximizing Shannon entropy over a joint distribution of actions and endpoints, subject to normalization and a constraint on the mean action, we ...
Fabricio Souza Luiz, José Carlos Bellizotti Souza, Luísa Toledo Tude, Marcos César de Oliveira   +3 more
wiley   +1 more source

Rayleigh Waves From OHANA OBSs in the Northeast Pacific Ocean Reveal Low Deep Shear Velocities and Pervasive Azimuthal Anisotropy

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract The 2021–2023 OHANA ocean‐bottom seismometer deployment in the northeast Pacific Ocean provides a rich data set for seismic studies to explore the crust, lithosphere and asthenosphere in a 600 km wide region about 1,500 km northeast of Hawaii, west of the Moonless Mountains. The study area covers mainly 40‐to‐55 Myr‐old Pacific lithosphere.
Gabi Laske, Grace Atkisson, John A. Collins, Donna K. Blackman   +3 more
wiley   +1 more source

A Machine Learning Parameterization for the Internal Gravity Wave Spectrum

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract We introduce a stochastic model designed to parametrize the spectral properties of internal waves, using two functions that represent the semidiurnal spectral tidal cusps and the energy continuum between the inertial and the buoyancy frequencies.
Yutao Zheng, Matthew D. Rayson, Nicole L. Jones, Lachlan C. Astfalck   +3 more
wiley   +1 more source

Kelvin‐Helmholtz Stability Analysis as a Function of Dipole Tilt and Solar Wind Property

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Kelvin‐Helmholtz instabilities (KHIs) play a critical role in facilitating mass and momentum transport across the magnetopause boundary. Recent studies have demonstrated that KHI occurrence exhibits both seasonal and diurnal variability, with enhanced activity when Earth's magnetic dipole is more closely aligned with the northward direction in
Alexander Navarro, Xuanye Ma, Jay Johnson, Simon Wing, Shiva Kavosi, Yu‐Lun Liou   +5 more
wiley   +1 more source

An Analysis of the Anomalous Response of the Van Allen Probes EFW Instrument

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Recent in situ measurements of electric fields from missions such as Polar, DEMETER, and the Van Allen Probes have reported anomalies in double‐probe electric field measurements, attributed to unintended coupling between the sensor and nearby driven stub surfaces through the ambient plasma.
K. Greene, J. W. Bonnell, K. A. Goodrich, J. L. Bowman, E. M. Tejero, D. P. Hartley, W. E. Amatucci   +6 more
wiley   +1 more source