Results 31 to 40 of about 48,382 (317)

Reentry: A Key Mechanism for Integration of Brain Function

open access: yesFrontiers in Integrative Neuroscience, 2013
Reentry in nervous systems is the ongoing bidirectional exchange of signals along reciprocal axonal fibers linking two or more brain areas. The hypothesis that reentrant signaling serves as a general mechanism to couple the functioning of multiple areas ...
Gerald M Edelman, Joseph A. Gally
doaj   +1 more source

Arrhythmia mechanism dependent pulmonary vein ablation in paroxysmal atrial fibrillation

open access: yesFrontiers in Physiology, 2023
Atrial fibrillation (AF) often requires invasive treatment by ablation to decrease symptom burden. The pulmonary veins (PV) are thought to trigger paroxysms of AF, and ablative PV isolation (PVI) is a cornerstone in AF treatment. However, incomplete PVI,
Lisa A. Gottlieb   +6 more
doaj   +1 more source

Effects of Reentry Plasma Sheath on GPS Patch Antenna Polarization Property

open access: yesInternational Journal of Antennas and Propagation, 2013
A plasma sheath enveloping a reentry vehicle would affect performances of on-board antenna greatly, especially the navigation antennas. This paper studies the effects of reentry plasma sheath on a GPS right-hand circularly polarized (RHCP) patch antenna ...
L. Zhao, B. W. Bai, W. M. Bao, X. P. Li
doaj   +1 more source

Mystery and contingency in correctional education

open access: yesJournal of Prison Education and Reentry, 2016
Citing the work of Maxine Greene, Maurice Merleau-Ponty, and Thom Gehring, this paper makes the argument that correctional educators should attempt to accept that they will never fully understand the lives and perspectives of their students.
G. Walker
doaj   +1 more source

Rotor Drivers in Induction and Maintenance of Atrial Fibrillation

open access: yesРациональная фармакотерапия в кардиологии, 2021
Atrial fibrillation is the most common arrhythmia in clinical practice. It is associated with an increased risk of stroke, chronic heart failure, and sudden cardiac death.
A. A. Kulikov   +5 more
doaj   +1 more source

Termination of Reentry in an Inhomogeneous Ring of Model Cardiac Cells [PDF]

open access: yesPhys Rev E 66, 061903 (2002), 2002
Reentrant waves propagating in a ring or annulus of excitable media model is the basic mechanism underlying a major class of irregular cardiac rhythms known as anatomical reentry. Such reentrant waves are terminated by rapid electrical stimulation (pacing) from an implantable device.
arxiv   +1 more source

Transient Introduction of miR-294 in the Heart Promotes Cardiomyocyte Cell Cycle Reentry After Injury.

open access: yesCirculation Research, 2019
RATIONALE Embryonic heart is characterized of rapidly dividing cardiomyocytes required to build a working myocardium. Cardiomyocytes retain some proliferative capacity in the neonates but lose it in adulthood.
A. Borden   +12 more
semanticscholar   +1 more source

Low voltage‐guided ablation of posterior wall improves 5‐year arrhythmia‐free survival in persistent atrial fibrillation

open access: yesJournal of Cardiovascular Electrophysiology, Volume 33, Issue 12, Page 2475-2484, December 2022., 2022
Abstract Introduction The posterior wall (PW) has been proposed as a standard target for ablation beyond pulmonary vein antral isolation (PVI) in patients with persistent atrial fibrillation (AF). However, studies have shown inconsistent outcomes with the addition of PW ablation.
Michael J. Cutler   +5 more
wiley   +1 more source

Modeling the Heart as a Communication System [PDF]

open access: yesJournal of the Royal Society Interface, 12 (105), 2015, 2014
Electrical communication between cardiomyocytes can be perturbed during arrhythmia, but these perturbations are not captured by conventional electrocardiographic metrics. We developed a theoretical framework to quantify electrical communication using information theory metrics in 2-dimensional cell lattice models of cardiac excitation propagation.
arxiv   +1 more source

A phenomenological study of employer perspectives on hiring ex- offenders

open access: yesCogent Social Sciences, 2019
Several researchers established a direct relationship between recidivism and ex-offenders’ unemployment. While the consequences of ex-offender unemployment to society are known, the lived experiences of employers or business owners making employment ...
Oluwasegun Obatusin   +1 more
doaj   +1 more source

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