Results 51 to 60 of about 66,681 (291)

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri, Isabella Dallasta, Ciaran Stone, Sophia Girgenti, Neda Gould, Rafael H. Llinas, Jonathan Z. Simon, Elisabeth Breese Marsh   +7 more
wiley   +1 more source

Saturation of the Large-scale Magnetic Field for Fast Rotating Solar-like Stars Driven by Inefficient Turbulent Angular Momentum Transport

The Astrophysical Journal
Magnetic activity in solar-like stars shows a systematic dependence on stellar rotation rate, known as the “activity–rotation relationship.” Recent observations further reveal that large-scale surface magnetic fields in solar-like stars are ...
Ryota Shimada, Takaaki Yokoyama
doaj   +1 more source

Discovery and Targeted Proteomic Studies Reveal Striatal Markers Validated for Huntington's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Clinical trials for Huntington's disease (HD) enrolling persons before clinical motor diagnosis (CMD) lack validated biomarkers. This study aimed to conduct an unbiased discovery analysis and a targeted examination of proteomic biomarkers scrutinized by clinical validation. Methods Cerebrospinal fluid was obtained from PREDICT‐HD and
Daniel Chelsky, Cara Joyce, H. Jeremy Bockholt, Paul A. Rudnick, William H. Adams, Fiona McAllister, Justin W. Smock, Michael A. Newton, Jane S. Paulsen   +8 more
wiley   +1 more source

The Importance of Ambipolar Heating in the Standard Thin Accretion Disk with Outflows

The Astrophysical Journal
This study examines the importance of the thermal effects of ambipolar diffusion (AD), by analyzing the governing properties in the middle and outer regions of a standard thin accretion disk with outflows.
Mahmoud Gholipour, Amir Abbas Eslami Shafigh   +1 more
doaj   +1 more source

Relationships Between Solar and Stellar Magnetic Fields [PDF]

Symposium - International Astronomical Union, 1983
Observational and theoretical studies of solar and stellar magnetic fields are reviewed. The discussion draws together several themes that emerged during IAU Symposium 102 on “Solar and Stellar Magnetic Fields: Origins and Coronal Effects,” and identifies a number of areas in which research over the next few years is likely to be fruitful.
openaire   +1 more source

The evolution of surface magnetic fields in young solar-type stars

, 2013
The surface rotation rates of young solar-type stars decrease rapidly with age from the end of the pre-main sequence though the early main sequence.
Bouvier, J., Donati, J. -F., Folsom, C. P., Morin, J., Petit, P.   +4 more
core   +3 more sources

The Effect of Combined Magnetic Geometries on Thermally Driven Winds I: Interaction of Dipolar and Quadrupolar Fields [PDF]

, 2017
Cool stars with outer convective envelopes are observed to have magnetic fields with a variety of geometries, which on large scales are dominated by a combination of the lowest order fields such as the dipole, quadrupole and octupole modes.
Finley, Adam J., Matt, Sean P.
core   +2 more sources

Glymphatic Dysfunction Reflects Post‐Concussion Symptoms: Changes Within 1 Month and After 3 Months

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Mild traumatic brain injury (mTBI) may alter glymphatic function; however, its progression and variability remain obscure. This study examined glymphatic function following mTBI within 1 month and after 3 months post‐injury to determine whether variations in glymphatic function are associated with post‐traumatic symptom severity ...
Eunkyung Kim, Han Gil Seo, Roh‐Eul Yoo, Byung‐Mo Oh   +3 more
wiley   +1 more source

Zeeman Doppler Imaging of τ Ceti: The Weakest Magnetic Field Detected in a Sun-like Star

The Astrophysical Journal Letters
For nearly a decade, observations have shown that many older Sun-like stars spin faster than predicted, a phenomenon known as weakened magnetic braking (WMB). The leading hypothesis for WMB is a weakening of the large-scale dipole field, which leads to a
Federica Chiti, Oleg Kochukhov, Jennifer L. van Saders, Travis S. Metcalfe   +3 more
doaj   +1 more source

The direct effect of a toroidal magnetic field on stellar oscillations

Astronomy & Astrophysics
Context. Magnetic fields affect stellar oscillations through eigenmode mixing. If the contribution of a magnetic field to the stellar oscillation frequency is weak, this mode coupling can be determined using perturbation theory.
Lindner Johannes, Roth Markus
doaj   +1 more source