Results 71 to 80 of about 36,388 (256)

Deep Brain Stimulation Reduces Conflict‐Related Theta and Error‐Related Negativity in Patients With Obsessive–Compulsive Disorder

Neuromodulation: Technology at the Neural Interface, EarlyView., 2021
Abstract Objectives Obsessive–compulsive disorder (OCD) is a psychiatric disorder with alterations of cortico‐striato‐thalamo‐cortical loops and impaired performance monitoring. Electrophysiological markers such as conflict‐related medial frontal theta (MFT) and error‐related negativity (ERN) may be altered by clinically effective deep brain ...
Elena Sildatke, Theo O. J. Gruendler, Markus Ullsperger, Till A. Dembek, Juan Carlos Baldermann, Sina Kohl, Veerle Visser‐Vandewalle, Daniel Huys, Jens Kuhn, Thomas Schüller   +9 more
wiley   +1 more source

Heating solar coronal holes

The Astrophysical Journal, 1991
It has been shown that the coronal hole, and the associated high-speed stream in the solar wind, are powered by a heat input of the order of 500,000 ergs/sq cm s, with most of the heat injected in the first 1-2 solar radii, and perhaps 100,000 ergs/sq cm s introduced at distances of several solar radii to provide the high speed of the issuing solar ...
openaire   +1 more source

Millimeter‐Scale Dual‐Opposing RNA‐Gradient Hydrogel for Interfacial Gene Silencing

Advanced Science, EarlyView.
A branched microfluidic platform enables the fabrication of millimeter‐scale hydrogels with dual‐opposing RNA‐gradients for precise spatial control of cell gene expression. This device allows for the generation of multiple constructs at once, offering potential for future engineering of complex tissue interfaces with improved physiological relevance ...
Tyler Hoffman, Cong Truc Huynh, Marcus J. Goudie, Peyton J. Tebon, Hyojin Ko, Minh Khanh Nguyen, Kaelyn L. Gasvoda, Yang Song, Kirsten Fetah, Ali Khademhosseini, Song Li, Eben Alsberg   +11 more
wiley   +1 more source

Global Effect of New Active Regions on Coronal Holes and Their Wind Streams

The Astrophysical Journal
Solar wind prediction algorithms and simulations of coronal events often employ photospheric field maps that are assembled over a 27 day solar rotation. This has stimulated efforts to update and better synchronize the maps by applying flux transport and ...
Y.-M. Wang, K. J. Knizhnik, I. Ugarte-Urra, M. J. Weberg   +3 more
doaj   +1 more source

Coronal heating by waves [PDF]

, 1983
Alfven waves or Alfvenic surface waves carry enough energy into the corona to provide the coronal energy requirements. Coronal loop resonances are an appealing means by which large energy fluxes enter active region loops.
Hollweg, J. V.
core   +1 more source

Ion-cyclotron waves in solar coronal hole [PDF]

New Astronomy, 2012
We investigate the effect of the Plume/Interplume Lane (PIPL) structure of the solar Polar Coronal Hole (PCH) on the propagation characteristics of ion-cyclotron waves (ICW). The gradients of physical parameters determined by SOHO and TRACE satellites both parallel and perpendicular to the magnetic field are considered with the aim of determining how ...
Dogan S., Pekünlü E.R.
openaire   +2 more sources

Temporal Interference Stimulation Enhances Neural Regeneration

Advanced Science, EarlyView.
Temporal interference (TI) stimulation is proposed as a non‐invasive approach to enhance neural regeneration in the deep brain. Theta‐band TI modulation selectively promotes neural progenitor cell differentiation in vitro and augments hippocampal neurogenesis in amouse model of Alzheimer's disease‐like amyloidosis.
Sofia Peressott, Maria Garcia Garrido, Patrycja Dzialecka, Rachel Man Hoi Law, Roberto Portillo‐Lara, Bethany Geary, Elena Faillace, Shirine Merlo‐Nikpay Aslie, Marcelina Wojewska, Maria Otero‐Jimenez, Martina Genta, Luqiao Tan, Karen Duff, Javier Alegre‐Abarrategui, Rylie Green, Nir Grossmann   +15 more
wiley   +1 more source

The solar and interplanetary causes of the recent minimum in geomagnetic activity (MGA23): a combination of midlatitude small coronal holes, low IMF B_Z variances, low solar wind speeds and low solar magnetic fields [PDF]

Annales Geophysicae, 2011
Minima in geomagnetic activity (MGA) at Earth at the ends of SC23 and SC22 have been identified. The two MGAs (called MGA23 and MGA22, respectively) were present in 2009 and 1997, delayed from the sunspot number minima in 2008 and 1996 by ~1/2–1 years.
B. T. Tsurutani, B. T. Tsurutani, E. Echer, W. D. Gonzalez   +3 more
doaj   +1 more source

Micro-Sigmoids as Progenitors of Coronal Jets - Is Eruptive Activity Self-Similarly Multi-Scaled?

, 2010
Observations from the X-ray telescope (XRT) on Hinode are used to study the nature of X-ray bright points, sources of coronal jets. Several jet events in the coronal holes are found to erupt from small-scale, S-shaped bright regions.
Archontis, Archontis, Aschwanden, Berger, Canfield, Christe, D. M. Rust, Einaudi, Georgoulis, Karpen, M. K. Georgoulis, Moreno-Insertis, N.-E. Raouafi, P. N. Bernasconi, Pariat, Patsourakos, Raouafi, Raouafi, Rust, Rust, Rust, Rust, Savcheva, Shimojo, Strong, Titov, Vourlidas, Vourlidas, Wang, Wang   +29 more
core   +1 more source

SOLAR WIND AND CORONAL BRIGHT POINTS INSIDE CORONAL HOLES

The Astrophysical Journal, 2011
Observations of 108 coronal holes (CHs) from 1998-2008 were used to investigate the correlation between fast solar wind (SW) and several parameters of CHs. Our main goal was to establish the association between coronal bright points (CBPs; as sites of magnetic reconnection) and fast SW. Using in situ measurements of the SW, we have connected streams of
Nina V. Karachik, Alexei A. Pevtsov
openaire   +1 more source