An accelerating tachycardia ending in fibrillation can be initiated in isolated hearts by injections of KC1 after the administration of epinephrine, but not in untreated hearts. KC1 acts in two ways to do this. First, it causes an A-V block that enables epinephrine to cause a paroxysmal ventricular tachycardia. Secondly, it causes the latter to accelerate by delaying the recovery of excitabilit...

We demonstrate the generation of self-accelerating surface plasmon beams along arbitrary caustic curvatures. These plasmonic beams are excited by free-space beams through a two-dimensional binary plasmonic phase mask, which provides the missing momentum between the two beams in the direction of propagation and sets the required phase for the plasmonic beam in the transverse direction. We examin...

An accelerating tachycardia ending in fibrillation can be initiated in isolated hearts by injections of KC1 after the administration of epinephrine, but not in untreated hearts. KC1 acts in two ways to do this. First, it causes an A-V block that enables epinephrine to cause a paroxysmal ventricular tachycardia. Secondly, it causes the latter to accelerate by delaying the recovery of excitabilit...

Introduction: The physics of the process that controls the interaction of light with planetary regolith surfaces is complex and only partially understood. In the past years, a number of semi-empirical models have been developed for analyzing the bidirectional reflectance data of particulate surfaces based on the scattering and absorption properties of minerals and rocks (e.g. [1], [2], [3], [4]...

regarding increasing importance of tank wagons and efficiency in fluids transportation, their usage is increasing every day. thus paying attention to their designs just as dynamic analysis of wagons during travelling time is vitally important. in this task, sloshing coefficient as prominent parameter in tank wagons designing has been investigated. to ease of efficient design, theses parameters ...

We present a new $f(Q)$ cosmological model capable of reproducing late-time acceleration, i.e. $f\left( Q\right) = \lambda_{0}\left( \lambda +Q\right) ^{n}$ by supporting certain parametrization the Hubble parameter. By using observational data from Hubble, Pantheon, and Baryonic Acoustic Oscillations (BAO) dataset, we investigate constraints on proposed quadratic parameter $H(z)$. This proposa...