Results 91 to 100 of about 383,826 (295)

CSF Monoamine Metabolites and Cognitive Trajectory in Early Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Imaging and postmortem studies indicate that abnormalities in monoaminergic neurotransmission contribute to cognitive impairment in Parkinson's disease (PD). However, it remains uncertain if cerebrospinal fluid (CSF) monoamine metabolites can serve as biomarkers of cognitive decline in early PD.
Jing‐Yu Shao, Rong Li, Yu‐Xiang Jiao, Kai Ma, Hong‐Qi Yang, Zheng‐Yu Sun, Jie‐Wen Zhang, Shuai Chen   +7 more
wiley   +1 more source

Power spectra of velocities and magnetic fields on the solar surface and their dependence on the unsigned magnetic flux density

, 2012
We have performed power spectral analysis of surface temperatures, velocities, and magnetic fields, using spectro-polarimetric data taken with the Hinode Solar Optical Telescope.
Abramenko, Abramenko, Abramenko, D. Orozco Suárez, Durrant, Espagnet, Goode, Ishikawa, Ishikawa, Lites, Lites, Orozco Suárez, Orozco Suárez, Pietarila Graham, Pietarila Graham, Rieutord, Roudier, Y. Katsukawa, Yelles Chaouche   +18 more
core   +1 more source

Curvature-related eddy-current losses in laminated axial flux machine cores [PDF]

, 2005
In this paper we present an axiperiodic quasi-static model to evaluate the magnetic flux density distribution and power loss due to curvature related radial flux in the laminated core of axial flux machines.
Ahfock, Tony L., Hewitt, Andrew
core   +2 more sources

[18F]Fluorodeprenyl‐D2 PET as a Tool to Monitor Disease Activity in GAD65‐Ab Autoimmune Encephalitis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate [18F]fluorodeprenyl‐D2 ([18F]F‐DED) positron‐emission tomography (PET) imaging as a biomarker of disease activity in autoimmune encephalitis (AIE) associated with glutamic acid decarboxylase 65 (GAD65) antibodies. Methods [18F]F‐DED PET was performed in 25 GAD65‐AIE patients and 8 controls using dynamic (0–60 min) and ...
Julia S. Dorneich, Jonathan A. Gernert, Hanna Zimmermann, Lisa Tagnin, Marianthi Zeinaki, Laura Sanzo, Letizia Vogler, Elisabeth Kaufmann, Justina Dargvainiene, Frank Leypoldt, Gérard N. Bischof, Robert Perneczky, Boris‐Stephan Rauchmann, Simon Lindner, Günter U. Höglinger, Rudolf A. Werner, Martin Kerschensteiner, Tania Kümpfel, Matthias Brendel, Franziska S. Thaler   +19 more
wiley   +1 more source

Measurement method of current density in lithium-ion battery by using magnetic sensor

Nihon Kikai Gakkai ronbunshu, 2015
Lithium-ion battery is a rechargeable battery with high energy density, and it is fabricated by laminating of electrodes with separator. In fabrication process, it is important for evaluation of contact state of laminated electrodes to estimate current ...
Yoshinao KISHIMOTO, Yukiyoshi KOBAYASHI, Toshihisa OHTSUKA, Kenji AMAYA, Takahito TOGO   +4 more
doaj   +1 more source

Diamagnetism of doped two-leg ladders and probing the nature of their commensurate phases

, 2007
We study the magnetic orbital effect of a doped two-leg ladder in the presence of a magnetic field component perpendicular to the ladder plane. Combining both low-energy approach (bosonization) and numerical simulations (density-matrix renormalization ...
A. Gozar, C. Bourbonnais, D. Jérome, D. Poilblanc, E. Orignac, G. Roux, R. Egger, S. R. White, T. Giamarchi   +8 more
core   +3 more sources

Magnetohydrostatic equilibrium. I: Three-dimensional open magnetic flux tube in the stratified solar atmosphere [PDF]

, 2013
A single open magnetic flux tube spanning the solar photosphere (solar radius R) and the lower corona (R + 10 Mm) is modelled in magnetohydrostatic equilibrium within a realistic stratified atmosphere subject to solar gravity.
Erdelyi, Robertus, Fedun, Viktor, Gent, Frederick Armstrong, Mumford, Stuart John   +3 more
core   +2 more sources

Advancing Age Modulates Associations Between Cognitive Impairment and Brain Volumes in Early MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Cognitive impairment is common in multiple sclerosis (MS), but manifestations following the first demyelinating event are relatively unexplored. We investigated cross‐sectional associations between magnetic resonance imaging (MRI)–derived brain volumes and the presence of cognitive impairment outcomes five years after the first ...
Piriyankan Ananthavarathan, Marco Pitteri, Michael Foster, Sara Collorone, Sara Salama, Elisa Colato, Ferran Prados, Baris Kanber, Marios Yiannakas, Claudia A. M. Gandini Wheeler‐Kingshott, Indran Davagnanam, Frederik Barkhof, Declan Chard, Olga Ciccarelli, Ahmed Toosy   +14 more
wiley   +1 more source

Performance of Inductive Coupled Power Transfer Versus the Coil Shape - Investigation using Finite Element Analysis

MATEC Web of Conferences, 2018
The objective of this paper is to investigate the impact of the spiral coil shape of inductive coupled power transfer on its performance. The coil shapes evaluated are: circular, square and pentagon spiral shapes. The coils are modelled in Ansoft Maxwell
Romlie Mohd Fakhizan, Lau Kevin, Zainol Mohd Zaifulrizal, Abdullah Mohd Faris, Kannan Ramani   +4 more
doaj   +1 more source

Longitudinal oscillations in density stratified and expanding solar waveguides

, 2012
Waves and oscillations can provide vital information about the internal structure of waveguides they propagate in. Here, we analytically investigate the effects of density and magnetic stratification on linear longitudinal magnetohydrodynamic (MHD) waves.
Andries, De Pontieu, DeForest, Fujimura, G. Verth, Kliem, Lin, Luna-Cardozo, M. Luna-Cardozo, Mariska, Mariska, Mathioudakis, Mendoza-Briceño, Mendoza-Briceño, Polyanin, R. Erdélyi, Ruderman, Sigalotti, Tsuneta, Uchida, Verth, Verth, Wang   +22 more
core   +1 more source