Results 21 to 30 of about 50,442 (262)

Particle acceleration by a solar flare termination shock [PDF]

Science, 2015
Electron acceleration in solar flares Magnetic reconnection during a solar flare releases energy into the Sun's atmosphere, some of which is converted into accelerated particles in the plasma. Chen et al. combined radio and ultraviolet observations of a solar flare to identify the termination shock region ...
Chen B, Bastian TS, Shen C, Gary DE, Krucker S, Glesener L   +5 more
openaire   +4 more sources

RR interval variability in the evaluation of ventricular tachycardia and effects of implantable cardioverter defibrillator therapy

Journal of Arrhythmia, 2021
Background An implantable cardioverter defibrillator (ICD) is the most reliable therapeutic device for preventing sudden cardiac death in patients with sustained ventricular tachycardia (VT).
Keita Tsukahara, Yasushi Oginosawa, Yoshihisa Fujino, Toshihiro Honda, Kan Kikuchi, Masatsugu Nozoe, Takayuki Uchida, Hitoshi Minamiguchi, Koichiro Sonoda, Masahiro Ogawa, Takeshi Ideguchi, Yoshihisa Kizaki, Toshihiro Nakamura, Kageyuki Oba, Satoshi Higa, Keiki Yoshida, Keishiro Yagyu, Taro Miyamoto, Yasunobu Yamagishi, Hisaharu Ohe, Ritsuko Kohno, Masaharu Kataoka, Yutaka Otsuji, Haruhiko Abe   +23 more
doaj   +1 more source

Dissolution of spiral wave's core using cardiac optogenetics.

PLoS Computational Biology, 2023
Rotating spiral waves in the heart are associated with life-threatening cardiac arrhythmias such as ventricular tachycardia and fibrillation. These arrhythmias are treated by a process called defibrillation, which forces electrical resynchronization of ...
Sayedeh Hussaini, Sarah L Lädke, Johannes Schröder-Schetelig, Vishalini Venkatesan, Raúl A Quiñonez Uribe, Claudia Richter, Rupamanjari Majumder, Stefan Luther   +7 more
doaj   +1 more source

Near-critical supernova outflows and their neutrino signatures

Physics Letters B, 2022
We demonstrate that the neutrino-driven outflows inside exploding core-collapse supernovae possess a special property of near-criticality, that is, they are on the edge of forming termination shocks.
Alexander Friedland, Payel Mukhopadhyay
doaj   +1 more source

The termination shock: 1979–1995 [PDF]

Journal of Geophysical Research: Space Physics, 1999
We study the varying location, jump condition, and shock speed of the termination shock in 1979–1995 taking into account the effects of pickup protons. Pickup protons and neutral hydrogen are calculated using a hot hydrogen model. Plasma and magnetic field data from Voyagers over a 17‐year period from 1978 through 1994 are used as input.
Y. C. Whang, J. Y. Lu, L. F. Burlaga
openaire   +1 more source

The effects of nifekalant hydrochloride on the spatial dispersion of repolarization after direct current defibrillation in patients with oral amiodarone and β-blocker therapy

Journal of Arrhythmia, 2014
Background: Although nifekalant hydrochloride (NIF) has been demonstrated to suppress ventricular tachyarrhythmias, especially electrical storms, the mechanism by which it does so is still unclear. We examined the effects of NIF on the spatial dispersion
Keiko Maeda, Masahiko Takagi, Hiroaki Tatsumi, Eiichiro Nakagawa, Minoru Yoshiyama   +4 more
doaj   +1 more source

Parents’ experiences and need for social support after pregnancy termination for fetal anomaly: a qualitative study in China

BMJ Open, 2023
Objective The aim of this study was to explore the experiences and need for social support of Chinese parents after termination of pregnancy for fetal anomalies.Design A qualitative study using semistructured, in-depth interviews combined with ...
Fang Wang, Yaping Sun, Jialu Qian, Shiwen Sun, Xiaoyan Yu, Yanping Tian, Qing Yu   +6 more
doaj   +1 more source

Studying particle acceleration from driven magnetic reconnection at the termination shock of a relativistic striped wind using particle-in-cell simulations [PDF]

EPJ Web of Conferences, 2020
A rotating pulsar creates a surrounding pulsar wind nebula (PWN) by steadily releasing an energetic wind into the interior of the expanding shockwave of supernova remnant or interstellar medium.
Lu Yingchao, Guo Fan, Kilian Patrick, Li Hui, Huang Chengkun, Liang Edison   +5 more
doaj   +1 more source

Avoidance as expectancy in rats: Sex and strain differences in acquisition

Frontiers in Behavioral Neuroscience, 2014
Avoidance is a core feature of anxiety disorders and factors which increase avoidance expression or its resistance represent a source of vulnerability for anxiety disorders. Outbred female Sprague Dawley (SD) rats and inbred male and female Wistar-Kyoto (
Pelin eAvcu, Pelin eAvcu, Xilu eJiao, Xilu eJiao, Catherine E. Myers, Catherine E. Myers, Catherine E. Myers, Catherine E. Myers, Kevin D. Beck, Kevin D. Beck, Kevin D. Beck, Kevin D. Beck, Kevin C. H. Pang, Kevin C. H. Pang, Kevin C. H. Pang, Kevin C. H. Pang, Richard J. Servatius, Richard J. Servatius, Richard J. Servatius, Richard J. Servatius   +19 more
doaj   +1 more source

Identification of Attenuators of Transcriptional Termination: Implications for RNA Regulation in Escherichia coli

mBio, 2022
The regulatory function of many bacterial small RNAs (sRNAs) requires the binding of the RNA chaperone Hfq to the 3′ portion of the sRNA intrinsic terminator, and therefore sRNA signaling might be regulated by modulating its terminator.
Teppei Morita, Nadim Majdalani, Masahiro C. Miura, Rerina Inose, Taku Oshima, Masaru Tomita, Akio Kanai, Susan Gottesman   +7 more
doaj   +1 more source