Results 211 to 220 of about 12,988 (293)

Complementary Sensitivity of Fixed‐Time and Fixed‐Oscillation Regimes to Exchange and Structural Disorder in the Human Brain Revealed Using Oscillating‐Gradient Diffusion MRI With Ultra‐Strong Gradients

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3429-3444, June 2026.
ABSTRACT Purpose Oscillating‐gradient spin‐echo (OGSE) diffusion MRI probes cell geometry and membrane integrity through the frequency‐dependence of kurtosis, but prior studies have reported inconsistent findings depending on how frequency is varied. We compared frequency‐dependent kurtosis in the human brain under two regimes: varying frequency with ...
Dongsuk Sung, Kwok‐Shing Chan, Julianna Gerold, Wen Zhong, Jialan Zheng, Qiyuan Tian, Hua Guo, Susie Y. Huang, Hong‐Hsi Lee   +8 more
wiley   +1 more source

Dynamic response mechanism of the hole subjected to the 3D point source disturbance in an isotropic formation. [PDF]

Sci Rep
Hongwei W, Wei D.
europepmc   +1 more source

FMRI Approaches to Mapping Cerebrovascular Reactivity: Comparison of Gradient Echo BOLD and Spin Echo BOLD With Arterial Spin Labeling

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3309-3321, June 2026.
ABSTRACT Purpose To compare markers of cerebrovascular reactivity (CVR) measured with Gradient Echo (GE, T2*w) and Spin‐Echo (SE, T2w) BOLD fMRI with quantitative physiological CVR measured using ASL. Methods CVR, the ability of blood vessels to dilate and increase cerebral blood flow (CBF), can be investigated with ASL fMRI but has a low signal‐to ...
Sara Pomante, Davide Di Censo, Alessandra Caporale, Fabrizio Fasano, Domenico Zacà, Elizabeth Jane Fear, Francesca Graziano, Manuela Carriero, Lucie Renee Raymonde Chalet, Emma Biondetti, Maria Eugenia Caligiuri, Michael Germuska, Richard Geoffrey Wise, Antonio Maria Chiarelli   +13 more
wiley   +1 more source

Aspects of Parameter Identification for a Micromorphic Continuum applied to a Cold‐Box Sand

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT This work is concerned with the modeling of a cold‐box sand, a composition of sand grains and a resin binder. To this end, experiments are performed, which show the following characteristics: localization phenomena in the form of a shear band, softening behavior in the force‐displacement curve, and asymmetric behavior for compression and ...
Alexander Börger, Rolf Mahnken, Ismail Caylak, Richard Ostwald   +3 more
wiley   +1 more source

Helmeted hornbill cranial kinesis: Balancing mobility and stability in a high‐impact joint

The Anatomical Record, Volume 309, Issue 5, Page 1299-1312, May 2026.
Abstract Prokinesis—in which a craniofacial joint allows the rostrum to move relative to the braincase—is thought to confer diverse advantages in birds, mostly for feeding. A craniofacial joint would, however, be a weak link if cranial stability is important. Paradoxically, we have identified a craniofacial joint in helmeted hornbills (Rhinoplax vigil),
Mike Schindler, Benjamin Flaum, Armita Razieh Manafzadeh, Viktoriia Kamska, Kanmani Chandra Rajan, Maria Jose Robles Malagamba, Ruien Hu, Daniel Baum, Mason N. Dean   +8 more
wiley   +1 more source

Thermo-diffusion of excited photothermal semiconductor under laser pulse and ramp heating with acoustic pressure. [PDF]

Heliyon
Alshehri HM, Lotfy K.
europepmc   +1 more source

Risk assessment for condylar stress fracture in elite racing Thoroughbreds using standing computed tomography‐based virtual mechanical testing

Equine Veterinary Journal, Volume 58, Issue 3, Page 674-681, May 2026.
Abstract Background Condylar stress fracture of the third metacarpal bone (MC3) is a common catastrophic injury in Thoroughbred racehorses and is associated with parasagittal groove (PSG) subchondral osteolysis. Standing computed tomography (sCT) imaging enables sensitive identification of this fatigue‐induced early subchondral bone injury (SBI), but ...
Nicola L. Brown, Soroush Irandoust, Elleana J. Thom, R. Christopher Whitton, Corinne R. Henak, Peter Muir   +5 more
wiley   +1 more source

Optimization of Magnetoplasmonic Behavior in Ag/Fe Bilayer Nanostructures Towards Refractometric Sensing. [PDF]

Sensors (Basel)
Carvalho JPM, Dias BS, Coelho LCC, Almeida JMMM.   +3 more
europepmc   +1 more source

Field Strength‐Dependent White Matter R1 and R2 Anisotropy of Phase‐Cycled Balanced Steady‐State Free Precession Relaxometry

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2873-2891, May 2026.
ABSTRACT Purpose To investigate how the relaxation rates (R1, R2) and asymmetry indices (AI), derived from phase‐cycled balanced steady‐state free precession (pc‐bSSFP) data, depend on the orientation of white matter (WM) fiber tracts at different field strengths.
Florian Birk, Hamzeh Tesh, Ali Aghaeifar, Svenja Klinkowski, Praveen Iyyappan Valsala, Sebastian Mueller, Svenja Brodt, Klaus Scheffler, Rahel Heule   +8 more
wiley   +1 more source

Deuterium 1‐Channel Transmit/16‐Channel High Impedance Receive Array Combined With 16‐Channel 1H Dual‐Row Transceiver Array for 7 Tesla Brain Imaging

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 3021-3030, May 2026.
ABSTRACT Purpose To develop and evaluate an 2H/1H coil configuration that enables deuterium metabolic imaging at 7 T while preserving high‐quality 1H anatomical imaging. Methods An 16‐channel 2H high‐impedance receive array was combined with a 2H transmit birdcage and a 16‐channel dual‐row 1H transceiver array.
Bei Zhang, Wenkai Liang, Chichen Dong, Anke Henning   +3 more
wiley   +1 more source