Results 221 to 230 of about 4,845 (297)

Convex Hartree-Fock theory for modeling ground state conical intersections. [PDF]

Commun Chem
Rossi F, Koch H.
europepmc   +1 more source

Fast and Robust Diffusion Posterior Sampling for MR Image Reconstruction Using the Preconditioned Unadjusted Langevin Algorithm

Magnetic Resonance in Medicine, Volume 96, Issue 3, Page 1323-1332, September 2026.
ABSTRACT Purpose The Unadjusted Langevin Algorithm (ULA) in combination with diffusion models can generate high quality MRI reconstructions with uncertainty estimation from highly undersampled k‐space data. However, sampling methods such as diffusion posterior sampling (DPS) or likelihood annealing suffer from long reconstruction times and the need for
Moritz Blumenthal, Tina Holliber, Jonathan I. Tamir, Martin Uecker   +3 more
wiley   +1 more source

Globalizing manifold-based reduced models for equations and data. [PDF]

Nat Commun
Kaszás B, Haller G.
europepmc   +1 more source

Single‐Shot 2D Radial Echo Planar Imaging for Functional MRI

Magnetic Resonance in Medicine, Volume 96, Issue 3, Page 1245-1260, September 2026.
ABSTRACT Purpose To develop a novel single‐shot radial echo planar imaging (ss‐rEPI) technique for rapid, distortion‐free brain imaging in functional MRI experiments. Methods Radial multi‐gradient echo (radial mGRE) data were acquired on a 3T clinical scanner using a 2D ss‐rEPI readout with small golden‐angle rotations between echoes.
Christoph A. Rettenmeier, Zidan Yu, Krystalyn Edwards‐Calma, Kai Tobias Block, V. Andrew Stenger   +4 more
wiley   +1 more source

Energy Eigenstates of Electrons, Magnons, and Phonons in Fe₃O₄ (Magnetite), MnFe₂O₄ (Jacobsite), and Mixed Mn-Zn Ferrites. [PDF]

J Chem Theory Comput
Dhariwal D, von Spakovsky MR, Reynolds WT.   +2 more
europepmc   +1 more source

Concurrent Four‐Dimensional Dynamic MRA and Perfusion Imaging Using Dual‐Module Arterial Spin Labeling MRI With Stack‐Of‐Stars Golden‐Angle Radial Acquisition

NMR in Biomedicine, Volume 39, Issue 9, September 2026.
A dual‐module ASL technique is proposed to obtain both 4D MRA and cerebral perfusion images within a single scan. Both time‐resolved MRA with high spatiotemporal resolution and perfusion‐weighted images with good contrast were successfully obtained from a single scan using the proposed dual‐module ASL technique, suggesting that it could be a ...
Tianrui Zhao, Jianing Tang, Sarah J. Moum, Yining He, Ziyi Huang, Ayaz Khan, Ali Shaibani, Lirong Yan   +7 more
wiley   +1 more source

Inferring latent behavioral strategy from the representational geometry of prefrontal cortex activity. [PDF]

Nat Commun
Qian Y, Herikstad R, Libedinsky C.
europepmc   +1 more source

A Posteriori Estimates For A Coupled Piezoelectric Model With Uncertain Data

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 3, September 2026.
ABSTRACT The paper is concerned with a coupled piezo‐electric problem with incompletely known coefficients of the elasticity tensor and two other tensors that define electric properties of the media. Due to this uncertainty, the problem possesses a set (cloud) of equally probable solutions instead of a unique solution.
S. Repin, T. Samrowski
wiley   +1 more source

MUSIC-Based Multi-Channel Forward-Scatter Radar Using OFDM Signals. [PDF]

Sensors (Basel)
Qin Y, Ajorloo A, Colone F.
europepmc   +1 more source

Non‐Elliptical Dimension Reduction in Survival Regression

Stat, Volume 15, Issue 3, September 2026.
ABSTRACT Sufficient dimension reduction (SDR) in survival regression aims to identify low‐dimensional structures that preserve the relationship between survival time and predictors. Classical SDR methods, such as sliced inverse regression (SIR), rely on strong assumptions such as linearity, constant variance and coverage conditions, which are often ...
Minjee Kim, Minjeong Kim, Jae Keun Yoo
wiley   +1 more source