OBJECTIVE Diffusion magnetic resonance imaging (MRI) studies have demonstrated acute white matter changes following prolonged febrile seizures (PFS), but their longer-term evolution is unknown. We investigated a population-based cohort to determine white matter diffusion properties 8 years after PFS. METHODS We used diffusion tensor imaging (DTI) and applied Tract-Based Spatial Statistics for...

In MRI, macroscopic boundaries lead to a diffusion-related increase in signal intensity near them--an effect commonly referred to as edge-enhancement. In diffusion-weighted imaging protocols where the signal attenuation due to diffusion results predominantly from the application of magnetic field gradients, edge-enhancement will depend on the orientation of these diffusion gradients. The result...

ABSTRACT Relativistic magnetohydrodynamic shocks are efficient particle accelerators, often invoked in the models of gamma-ray bursts (GRBs) and shock-powered fast radio (FRBs). Most theoretical studies assume a perpendicular shock with an ordered magnetic field to normal. However, degree magnetization σ geometry GRB/FRB scenarios still poorly constrained by observations. Analogous associated t...

The unidirectional rolled Mg–Zn–Gd sheet usually exhibited non-basal texture with two peaks whose tilting angle were about 42° from normal direction to transverse (TD), which would cause the mechanical anisotropy. In this study, multi-cross rolling followed by annealing was used tailor and anisotropy for alloy. With increasing temperature, basal gradually transformed into circle multi-peaks. or...

Filamentation instability is an electromagnetic wave that grows normal to the proton-driven direction in fast ignition scenario can reduce beam quality or dissipate it due pinching force before this reaches dense core. On other hand, producing isotropic pre-compressed fuel almost impossible process. Therefore, Weibel may cumulate with filamentation instability. Consequently, growth rate increas...

Diffusion tensor imaging is a sensitive way to reflect axonal necrosis and degeneration, glial cell regeneration and demyelination following spinal cord injury, and to display microstructure changes in the spinal cord in vivo. Diffusion tensor imaging technology is a sensitive method to diagnose spinal cord injury; fiber tractography visualizes the white matter fibers, and directly displays the...