Results 141 to 150 of about 904,380 (360)

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito, Chiara Meneghini, Alice Galli, Luca Gallo, Pierfrancesco Mitrotti, Paola Dimartino, Marianna Inglese, Cinzia Zatti, Alessandro Lupini, Andrea Pilotto, Alessandro Padovani, Micol Avenali, Enza Maria Valente, Cristina Tassorelli, Silvia P. Caminiti   +14 more
wiley   +1 more source

Stability analysis of plasma waves driven by runaway electrons in tokamak hot plasmas

Nuclear Fusion
The local stability analysis of plasma waves driven by runaway electrons (REs) has been performed considering hot plasma Maxwellian background, with electron and ion temperatures of the order of 1 keV.
C. Castaldo, L. Della Volpe, R. Fedele, W. Bin, P. Buratti, A. Cardinali, F. Napoli, M. Marinucci, G. Apruzzese, C. Cianfarani, E. Giovannozzi, O. Tudisco   +11 more
doaj   +1 more source

Influence of Boundary Conditions and Heating Modes on the Onset of Columnar Convection in Rotating Spherical Shells

Fluids
We investigate the linear onset of thermal convection in rotating spherical shells with a focus on the influence of mechanical boundary conditions and thermal driving modes.
William Seeley, Francesca Coke, Radostin D. Simitev, Robert J. Teed   +3 more
doaj   +1 more source

Brainstem and Cerebellar Volume Loss and Associated Clinical Features in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Progressive Supranuclear Palsy (PSP) is a neurodegenerative ‘tauopathy’ with predominating pathology in the basal ganglia and midbrain. Caudal tau spread frequently implicates the cerebellum; however, the pattern of atrophy remains equivocal.
Chloe Spiegel, Timothy P. Siejka, Cassandra Marotta, Josh J. Y. Lee, Kelly Bertram, Terence J. O'Brien, Meng Law, Lucy Vivash, Ian H. Harding   +8 more
wiley   +1 more source

Modeling complex plasma instabilities in space plasmas

Astronomy & Astrophysics
Context. Despite the fact that electrons observed in situ in space plasmas have three major components – the quasi-thermal core, suprathermal halo, and strahl – the analysis of instabilities triggered by kinetic, velocity-space anisotropies (such as ...
Schröder Dustin L., Lazar Marian, Fichtner Horst, López Rodrigo A., Poedts Stefaan   +4 more
doaj   +1 more source

Dynamical instabilities in lasers

, 2001
info:eu-repo/semantics ...
Tlidi, Mustapha
core  

Five‐Year Disease Progression in Synuclein Seeding Positive Sporadic Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To provide a comprehensive description of disease progression in synuclein seeding assay (SAA) positive sporadic Parkinson Disease participants, using Neuronal Synuclein Disease integrated biological and functional impairment staging framework.
Paulina Gonzalez‐Latapi, Caroline Gochanour, Seung Ho Choi, Hyunkeun Cho, Chelsea Caspell‐Garcia, Christopher Coffey, Michael Brumm, David‐Erick Lafontant, Yuge Xiao, Thomas Tropea, John Seibyl, Caroline Tanner, Charles S. Venuto, Karl Kieburtz, Lana M. Chahine, Kathleen L. Poston, Andrew Siderowf, Kenneth Marek, Tanya Simuni, The Parkinson's Progression Markers Initiative   +19 more
wiley   +1 more source

Streaming instabilities in weakly ionized protoplanetary discs: The ambipolar streaming instability

Astronomy & Astrophysics
The regions of protoplanetary disks in which planets can form are thought to be weakly ionized, which suggests that nonideal magnetohydrodynamics (MHD) effects play an important role in the disk dynamics and in the planet formation process. In particular,
Pierens Arnaud, Lin Min-Kai
doaj   +1 more source

Parker Instability in a Self-Gravitating Magnetized Gas Disk. III. Nonlinear Development of the Parker Instability

, 2011
Using a TVD MHD code, we have simulated the nonlinear development of the Parker instability in an isothermal magnetized gas disk , which is under the influence of self-gravity.
이상민
core  

The role of multidimensional instabilities in direct initiation of gaseous detonations in free space

, 2017
We numerically investigate the direct initiation of detonations driven by the propagation of a blast wave into a unconfined gaseous combustible mixture to study the role played by multidimensional instabilities in direct initiation of stable and unstable
Shen, Hua, Parsani, Matteo
core   +1 more source