Results 71 to 80 of about 518,160 (301)

Magnetic Actuation for Wireless Capsule Endoscopy in a Large Workspace Using a Mobile-Coil System

Micromachines
Current wireless capsule endoscopy (WCE) is limited in the long examination time and low flexibility since the capsule is passively moved by the natural peristalsis.
Xiao Li, Detian Zeng, Han Xu, Qi Zhang, Bin Liao   +4 more
doaj   +1 more source

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang, Yixiu Pei, Xiaobao Hu, Ying Xiong, Fang Wang, Yanyan Yu, Min Zhu, Dandan Tan, Meihong Zhou, Daojun Hong, Fuqing Zhou   +10 more
wiley   +1 more source

Theoretical modeling of propagation of magneto-acoustic waves in magnetic regions below sunspots [PDF]

, 2008
We use 2D numerical simulations and eikonal approximation, to study properties of MHD waves traveling below the solar surface through the magnetic structure of sunspots. We consider a series of magnetostatic models of sunspots of different magnetic field
A. Kosovichev, Braun, Couvidat, Couvidat, E. Khomenko, Gizon, Gizon, Hanasoge, Hindman, Jacoutot, K. Parchevsky, Khomenko, Khomenko, Kosovichev, Lindsey, Lindsey, M. Collados, Parchevsky, Parchevsky, Rajaguru, Rajaguru, Schunker, V. Olshevsky, Zhao, Zhao   +24 more
core   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

Pro‐L* ‐ A Probabilistic L* Mapping Tool for Ground Observations

Space Weather, 2021
Both ground and space observations are used extensively in the modeling of space weather processes within the Earth’s magnetosphere. In radiation belt physics modeling, one of the key phase‐space coordinates is L*, which indicates the location of the ...
Rhys L. Thompson, Steven K. Morley, Clare E. J. Watt, Sarah N. Bentley, Paul D. Williams   +4 more
doaj   +1 more source

Generalized noise terms for the quantized fluctuational electrodynamics

, 2017
The quantization of optical fields in vacuum has been known for decades, but extending the field quantization to lossy and dispersive media in nonequilibrium conditions has proven to be complicated due to the position-dependent electric and magnetic ...
Häyrynen, Teppo, Oksanen, Jani, Partanen, Mikko, Tulkki, Jukka   +3 more
core   +1 more source

Temperature distribution in magnetized neutron star crusts. II. The effect of a strong toroidal component [PDF]

, 2005
We continue the study of the effects of a strong magnetic field on the temperature distribution in the crust of a magnetized neutron star (NS) and its impact on the observable surface temperature. Extending the approach initiated in Geppert et al.(2004),
Akiyama, Akmal, Balbus, Balbus, Braithwaite, Brinkmann, Buckley, Burwitz, D. Page, de Vries, Geppert, Geppert, Geppert, Gil, Greenstein, Haberl, Haberl, Heyl, Ho, Kargaltsev, Kluzniak, Lai, Link, M. Küker, Markey, Motch, Page, Page, Page, Pons, Potekhin, Potekhin, Pérez-Azorín, Pérez-Azorín, Romani, Schwope, Shibanov, Thompson, Trümper, Turolla, U. Geppert, van Adelsberg, Wheeler, Zane   +43 more
core   +1 more source

A dynamo model of Jupiter’s magnetic field [PDF]

Icarus, 2014
Jupiter's dynamo is modelled using the anelastic convection-driven dynamo equations. The reference state model is taken from French et al. [2012]. Astrophys. J. Suppl. 202, 5, (11pp), which used density functional theory to compute the equation of state and the electrical conductivity in Jupiter's interior.
openaire   +2 more sources

n-cluster models in a transverse magnetic field [PDF]

Journal of Statistical Mechanics: Theory and Experiment, 2018
In this paper we analize a family of one dimensional fully analytically solvable models, named the n-cluster models in a transverse magnetic field, in which a many-body cluster interaction competes with a uniform transverse magnetic field. These models, independently by the cluster size n + 2, exibit a quantum phase transition, that separates a ...
Zonzo, G, Giampaolo, S M
openaire   +3 more sources

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

Annals 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, Qiu‐Ping Zhao, Run‐Yun Li, Wei Chen, Huan‐Huan Song, Wan‐Jin Chen, Ying Fu   +6 more
wiley   +1 more source