Results 71 to 80 of about 104,896 (307)
Sinoatrial reentry tachycardia: A review [PDF]
Sinoatrial reentry tachycardia is a relatively uncommon arrhythmia in the literature, but may be prone to underdiagnosis due to electrocardiographic similarity to sinus tachycardia and misinterpretation of symptoms as psychosomatic. Awareness of the diagnosis, and hence differentiation of SART from inappropriate sinus tachycardia, atrial tachycardia or
N. Sreeram, T. A. Simmers
openaire +3 more sources
Alternans amplification following a two-stimulations protocol in a one-dimensional cardiac ionic model of reentry: from annihilation to double-wave quasiperiodic reentry [PDF]
Electrical pacing is a common procedure that is used in both experimental and clinical settings for studying and/or annihilating anatomical reentry. In a recent study [Comtois and Vinet, Chaos 12, 903 (2002)], new ways to terminate the one-dimensional reentry using a simple protocol consisting of only two stimulations were discovered.
arxiv
Geometric analysis on the unidirectionality of the pulmonary veins for atrial reentry [PDF]
It is widely believed that the pulmonary veins (PVs) of the atrium play the central role in the generation of atrial reentry leading to atrial fibrillation, but its mechanism has not been analytically explained. In order to improve the current clinical procedures for atrial reentry by understanding its mechanism, geometrical analysis is proposed on the
arxiv
Electromagnetic Wave Propagation In The Plasma Layer of A Reentry Vehicle [PDF]
The ability to simulate a reentry vehicle plasma layer and the radio wave interaction with that layer, is crucial to the design of aerospace vehicles when the analysis of radio communication blackout is required. Results of aerothermal heating, plasma generation and electromagnetic wave propagation over a reentry vehicle are presented in this paper ...
arxiv
Enhancing Reentry Support Programs Through Digital Literacy Integration [PDF]
Challenges faced by formerly incarcerated individuals in the United States raise questions about our society's ability to truly provide second chances. This paper presents the outcomes of our ongoing collaboration with a non-profit organization dedicated to reentry support.
arxiv +1 more source
Unnecessary risks created by uncontrolled rocket reentries [PDF]
In 2020, over 60% of launches to low Earth orbit resulted in one or more rocket bodies being abandoned in orbit and eventually returning to Earth in an uncontrolled manner. When they do so, between 20 and 40% of their mass survives the heat of atmospheric reentry.
arxiv
Environmental effects of SPS: The middle atmosphere [PDF]
The heavy lift launch vehicle associated with the solar power satellite (SPS) would deposit in the upper atmosphere exhaust and reentry products which could modify the composition of the stratosphere, mesosphere, and lower ionosphere.
Borucki, W. J.+7 more
core +1 more source
Prior work on the process of reentry from prison has highlighted the pivotal role that family and peers play during reintegration. Families are traditionally understood as important protective mechanisms against recidivism whereas peers are typically ...
Thomas J. Mowen, J. Boman
semanticscholar +1 more source
Spatiotemporal dynamics of pacing in models of anatomical reentry [PDF]
Reentry around non-conducting ventricular scar tissue, which often causes lethal arrhythmias, is typically treated by rapid stimulation from an implantable defibrillator. However, the mechanisms of termination (success and failure) are poorly understood.
arxiv
Among the most difficult but fulfilling challenges to meet in the invasive electrophysiology laboratory is defining a reentrant circuit and choosing an effective ablation strategy. In this installment of teaching rounds, Ip et al1 elegantly discuss the deductive process involved when analyzing activation and entrainment data in a particularly ...
William G. Stevenson+1 more
openaire +3 more sources