Results 61 to 70 of about 581,589 (298)

Innate Immune Reprogramming Mediated by Endogenous Retroelement Dysregulation Drives Multiple Sclerosis Progression

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
Epigenetic reprogramming in hematopoietic stem and progenitor cells (HSPCs) and downstream myeloid cells, mediated by H3.3 downregulation and endogenous retroelement (ERE) overexpression, contributes to the progression of multiple sclerosis (MS). ABSTRACT Background Skewed myelopoiesis in the bone marrow has been identified as a key driver of multiple ...
Li‐Mei Xiao   +6 more
wiley   +1 more source

A Method for Eddy Current Field Measurement in Permanent Magnet Magnetic Resonance Imaging Systems

open access: yesChinese Journal of Magnetic Resonance, 2018
Magnetic resonance imaging (MRI) is a widely used medical imaging technique. In MRI system, gradient magnetic fields are used to code spatial information.
SONG Rui, HE Yan-fa, ZHANG Bo
doaj   +1 more source

A model of driven and decaying magnetic turbulence in a cylinder

open access: yes, 2011
Using mean-field theory, we compute the evolution of the magnetic field in a cylinder with outer perfectly conducting boundaries, an imposed axial magnetic and electric field.
Axel Brandenburg   +9 more
core   +1 more source

Manipulation of skyrmion motion by magnetic field gradients [PDF]

open access: yesNature Communications, 2018
AbstractMagnetic skyrmions are particle-like, topologically protected magnetisation entities that are promising candidates as information carriers in racetrack memory. The transport of skyrmions in a shift-register-like fashion is crucial for their embodiment in practical devices.
S. L. Zhang   +8 more
openaire   +3 more sources

Paramagnetic Rim Lesions Are Associated With Trans‐Synaptic Degeneration of the Visual Pathway in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Retrograde trans‐synaptic degeneration (rTSD) from posterior visual pathway lesions in multiple sclerosis (MS) is characterized by hemi‐macular ganglion cell‐inner plexiform layer (GCIPL) thinning and contralateral visual field loss.
Abdul Jaber Tayem   +17 more
wiley   +1 more source

Determination of nanoparticle force balance in an electrical magnetic separation system

open access: yesElectrical engineering & Electromechanics, 2014
Analytical expressions for magnetic force gradient computation are given. FEM simulation of the matrix core in the working gap of a magnetic system is conducted. The magnetic force distribution is presented as a relative ratio.
E.E. Volkanin   +3 more
doaj  

Effects of the upward-increasing gradient magnetic field on soot properties in ethylene inverse diffusion flames with different oxygen concentrations

open access: yesFrontiers in Energy Research, 2022
The effects of the upward-increasing gradient magnetic field on soot properties are experimentally investigated in ethylene inverse diffusion flames with different oxygen concentrations.
Yaoyao Ying   +5 more
doaj   +1 more source

Berry's Phases of Ground States of Interacting Spin-One Bosons: Chains of Monopoles and Monosegments

open access: yes, 2003
We study Berry's connection potentials of many-body ground states of spin-one bosons with antiferromagnetic interactions in adiabatically varying magnetic fields.
A. Shapere   +8 more
core   +2 more sources

Magnetic resonance imaging of ultrasound fields: Gradient characteristics [PDF]

open access: yesJournal of Magnetic Resonance Imaging, 2000
Phase-contrast magnetic resonance imaging (MRI) is used to image particle displacements arising from a 0.515-MHZ focused ultrasound (US) field. The technique used a phase-locked, self-resonant gradient matched to the US frequency in conjunction with a spin-echo sequence to generate phase images of US-induced displacement parallel to the US propagation ...
D B, Plewes   +3 more
openaire   +2 more sources

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang   +8 more
wiley   +1 more source

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