Results 81 to 90 of about 1,940,482 (293)

Meningovascular Inflammation in Cerebral Amyloid Angiopathy‐Related Cortical Superficial Siderosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT The role of inflammation in cortical superficial siderosis (cSS), a marker of cerebral amyloid angiopathy (CAA) linked to high hemorrhage risk, is unclear. We examined 15 patients with cSS using 3 T post‐contrast vessel wall MRI (VWI) and CSF analysis.
Philipp Arndt   +8 more
wiley   +1 more source

Experimental study on influences of inclined weak interface on the dynamic crack propagation behavior

open access: yesYantu gongcheng xuebao, 2019
In order to study the dynamic fracture behavior of layered materials with weak plane under impact loads combined with the split Hopkinson pressure bar, which is applied as an impact loading configuration, the dynamic fracturing process is recorded using ...
XU Peng 1, YANG Ren-shu 2, 3, JU Yang 1, XIA Kai-wen 4, GUO Yang 3
doaj   +1 more source

Perfect valley filter in strained graphene with single barrier region

open access: yes, 2016
We present a single barrier system to generate pure valley-polarized current in monolayer graphene. A uniaxial strain is applied within the barrier region, which is delineated by localized magnetic field created by ferromagnetic stripes at the regions ...
Jalil, Mansoor B. A.   +3 more
core   +2 more sources

HAADF-STEM block-scanning strategy for local measurement of strain at the nanoscale

open access: yes, 2020
Lattice strain measurement of nanoscale semiconductor devices is crucial for the semiconductor industry as strain substantially improves the electrical performance of transistors.
Bender, Hugo   +5 more
core   +2 more sources

Experimental methodology of study of damage initiation and development in textile composites in uniaxial tensile test [PDF]

open access: yes, 2008
Damage in textile composites is closely connected with the internal micro- and meso-geometry of the reinforcement, and reveals features, which are not present in the damage processes in classical laminates. This paper proposes a test sequence intended to
Baudry, F.   +6 more
core   +2 more sources

Vestibular Patient Journey: Insights From Vestibular Disorders Association (VeDA) Registry

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Vestibular symptoms impose a high burden of disability. Understanding real‐world diagnostic and treatment pathways can identify care gaps and guide interventions. We aimed to characterize symptom profiles, diagnostic trends, provider involvement, and treatment patterns in vestibular disorders.
Ali Rafati   +10 more
wiley   +1 more source

Electric-field induced strain in biological tissues [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2010
This paper reports a new effect whereby a physiological-level direct-current electrical field (at 1.4 V/cm) can induce time-varying mechanical strain in various types of biological tissues and gel phantoms. This effect cannot be explained by the piezoelectric effect, tissue contraction, temperature changes, and electrorestriction. The induced strain in
Ozkan, Doganay, Yuan, Xu
openaire   +2 more sources

Observation of Landau level-like quantizations at 77 K along a strained-induced graphene ridge

open access: yes, 2011
Recent studies show that the electronic structures of graphene can be modified by strain and it was predicted that strain in graphene can induce peaks in the local density of states (LDOS) mimicking Landau levels (LLs) generated in the presence of a ...
Chan, Moses H. W.   +4 more
core   +1 more source

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp   +4 more
wiley   +1 more source

Investigation of the evolution of deformation field and crack propagation characteristics of sandstone containing an arched roadway

open access: yesFrontiers in Earth Science
In mining, tunneling, and other engineering activities, the stability and strength of the surrounding rock system are primarily governed by the dynamic evolution of crack initiation, propagation, and interconnection in the rock material.
Yao Yan, Yuqi Zhang, Meiling Zhou
doaj   +1 more source

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