Results 71 to 80 of about 895,705 (300)

Upper Cervical Cord Area as a Biomarker of Conversion to Secondary Progressive Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study assessed whether upper cervical cord area (UCCA) measured on routine brain MRI can serve as a biomarker of conversion to SPMS. Methods This is a single‐center retrospective cohort study of RRMS patients with cross‐sectional and longitudinal analyses of clinical and MRI data. Future SPMS converters were matched by age, sex,
Nabil K. El Ayoubi   +8 more
wiley   +1 more source

Efficient hybrid shock capturing schemes

open access: yes, 1990
Harabetian, Eduard; Pego, Robert. (1990). Efficient hybrid shock capturing schemes.
Harabetian, Eduard, Pego, Robert
core  

A comparison of a shock-capturing technique with experimental data for three-dimensional internal flows [PDF]

open access: yes, 1975
Shock-capturing solutions for an axisymmetric supersonic inlet at small angles of attack are obtained. Good overall agreement between the shock-capturing solutions and experimental data is shown except in regions of strong viscous effects or boundary ...
Presley, L. L.
core  

Digital Cognitive Testing in Mitochondrial Disease: Validity and Challenges for Clinical Trial Use

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Primary mitochondrial disease is a group of genetic disorders caused by pathogenic variants in nuclear or mitochondrial DNA, often resulting in progressive neurodegeneration and cognitive decline. Current management is primarily supportive, though recent research offers hope for disease‐modifying treatments in the future.
Oksana Pogoryelova   +9 more
wiley   +1 more source

High-order shock capturing discontinuous Galerkin schemes

open access: yes, 2006
A shock capturing strategy for high-order accurate Discontinuous Galerkin (DG) approximations of the compressible Euler equations and the ideal magnetohydrodynamic equations is presented.
Ekaterinaris, J.A. (author)   +1 more
core  

p adé: A Code for Protoplanetary Disk Turbulence Based on Padé Differencing

open access: yesThe Astrophysical Journal Supplement Series
The Padé code has been developed to treat hydrodynamic turbulence in protoplanetary disks. It solves the compressible equations of motion in cylindrical coordinates.
Karim Shariff
doaj   +1 more source

A Block–Interface Approach for High–Order Finite–Difference Simulations of Compressible Flows

open access: yesJournal of Applied Fluid Mechanics, 2021
The application of the high-order accurate schemes with multi-block domains is essential in problems with complex geometries. Primarily, accurate block-interface treatment is found to be of significant importance for precisely capturing discontinuities ...
M. Allahyari   +3 more
doaj  

Deep Learning Pose Estimation for Phenotyping of Co‐Occurring Hyperkinetic Movement Disorders

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore whether routine outpatient video combined with deep learning‐based pose estimation and clinically interpretable kinematic features can support multi‐label phenotyping of co‐occurring hyperkinetic movement disorders (HMDs).
Laura Cif   +17 more
wiley   +1 more source

Reliable estimation of shock position in shock-capturing compressible hydrodynamics codes [PDF]

open access: yes, 2008
The displacement method for estimating shock position in a shock-capturing compressible hydrodynamics code is introduced. Common estimates use simulation data within the captured shock, but the displacement method uses data behind the shock, making the ...
Nelson, Eric M
core  

Global Rather Than Vertical‐Selective Saccadic Abnormalities in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To test whether vertical saccades are preferentially affected in Progressive Supranuclear Palsy (PSP). Methods PSP patients (n = 24) were compared to age‐matched controls (n = 94) and two degenerative groups (Alzheimer's disease, n = 20; Lewy body disease, n = 50).
Duy Duan Nguyen   +6 more
wiley   +1 more source

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