Asynchronous response of coupled pacemaker neurons [PDF]
, 2009 We study a network model of two conductance-based pacemaker neurons of differing natural frequency, coupled with either mutual excitation or inhibition, and receiving shared random inhibitory synaptic input. The networks may phase-lock spike-to-spike for strong mutual coupling.
arxiv +1 more source
Implantable Self‐Powered Systems for Electrical Stimulation Medical Devices
Advanced Science, EarlyView.In this paper, the design strategy and clinical application of ISS are discussed in depth from four aspects: the design and optimization of the energy collection module, the selection and preparation of adaptive electrode materials, the innovation of system design strategy, and the biological effect of electrical stimulation of ISS.
Xi Cui, Li Wu, Chao Zhang, Zhou Li
wiley +1 more source
Advanced Science, EarlyView.Superparamagnetic nanoparticles show non‐linear magnetization behavior. Thus, they respond with magnetic intermodulation frequencies upon dual‐frequency magnetic excitation. These uniquely characterize their hydrodynamic and core sizes as well as binding states.
Hans‐Joachim Krause +1 more
wiley +1 more source
Analysis of Heterogeneous Cardiac Pacemaker Tissue Models and Traveling Wave Dynamics [PDF]
arXiv, 2018 The sinoatrial-node (SAN) is a complex heterogeneous tissue that generates a stable rhythm in healthy hearts, yet a general mechanistic explanation for when and how this tissue remains stable is lacking. Although computational and theoretical analyses could elucidate these phenomena, such methods have rarely been used in realistic (large-dimensional ...
arxiv
Novel Electroactive Therapeutic Platforms for Cardiac Arrhythmia Management
Advanced Science, EarlyView.Electroactive platforms offer promising applications in cardiac arrhythmia. Based on their energy sources and mechanisms, electroactive platforms are categorized into i) direct electrical stimulation, ii) self‐powered electroactive systems, iii) physical stimuli‐mediated electroactive systems, and iv) conductive systems, and their applications in ...
Juwei Yang +4 more
wiley +1 more source
A model of cardiac tissue as a conductive system with interacting pacemakers and refractory time [PDF]
arXiv, 2002 A model of the heart tissue as a conductive system with two interacting pacemakers and a refractory time, is proposed. In the parametric space of the model the phase locking areas are investigated in detail. Obtained results allow us to predict the behaviour of excitable systems with two pacemakers depending on the type and intensity of their ...
arxiv
Evaluation and comparison of inserting temporary transvenous pacemaker using blind method and 2dimentional echocardiographic guide in hospitalized patients in Ardabil Bu-Ali hospital during 1378-1384 [PDF]
Introduction: Temporary transvenous pacemakers are used in urgent management of patients with severe bradyarrythmia and unstable hemodynamic state and not responded to drug therapy.
امانی, فیروز +3 more
core
Pacemaker endocarditis due to Haemophilus parainfluenza : case report and literature review [PDF]
, 2007 This article reports a case of pacemaker infective endocarditis in a 14 month old girl, caused by Haemophilus parainfluenzae. There are no other cases in children reported in the literature.
Kadalraja, R. +3 more
core +1 more source
Estimating the State of Charge in Lithium Primary Batteries: Recent Advances and Critical Insights
Advanced Energy and Sustainability Research, EarlyView.Existing nondestructive state‐of‐charge estimation techniques for nonrechargeable lithium batteries are compared. In this review, it is revealed that established methods for prediction exist for lithium rechargeable cells, while nonrechargeable batteries lack such maturity in prediction methods.
Sydney Roth +4 more
wiley +1 more source
Limit Cycle Oscillations in Pacemaker Cells [PDF]
arXiv, 1999 In recent decades, several mathematical models describing the pacemaker activity of the rabbit sinoatrial node have been developed. We demonstrate that it is not possible to establish the existence, uniqueness, and stability of a limit cycle oscillation in those models. Instead we observe an infinite number of limit cycles.
arxiv