A major challenge in mapping atrial fibrillation (AF) to guide ablation is that it unclear what resolution required map potential regions of interest such as those microanatomic reentries revealed by optical ex-vivo human hearts (fig. A). The goal the study was define electrode configurations can identify targets specific EGM traces generated during conduction through common path AF reentry. We...

Abstract Space debris have become exceedingly dangerous over the years as number of objects in orbit continues to increase. Active removal (ADR) missions gained significant interest effective means mitigating risk collision between space. This study focuses on developing a multi-ADR mission that utilizes controlled reentry and deorbiting. The comprises two spacecraft: Servicer brings low altitu...

Over the past two decades, recidivism rates have remained relatively stable, leading practitioners to explore innovative reentry solutions. One model, based on concept of peer mentorship, has received renewed attention. Unfortunately, little is known about which characteristics make mentors most effective in a prison setting. This study uses participant observation and semi-structured interview...

This study investigated the effects of initial load height and foot placement instruction in four lifting techniques: free, stoop (bending the back), squat (bending the knees) and a modified squat technique (bending the knees and rotating them outward). A 2D dynamic linked segment model was combined with an EMG assisted trunk muscle model to quantify kinematics and low back loading in 10 subjec...

OBJECTIVES To assess the criterion-related validity of the five Ergo-Kit (EK) functional capacity evaluation (FCE) lifting tests in construction workers on sick leave due to musculoskeletal disorders (MSDs). METHODS Six weeks, 6 months and 1 year after the first sick leave day due to MSDs, construction workers underwent two isometric and three dynamic EK FCE lifting tests, and completed the I...

This study recruited 14 young male participants to examine human 4-h maximum acceptable weight of lifting (MAWL) and maximum weight of lifting (MWL) for different modes of asymmetric lifting and containers. The results showed that asymmetric lifting with trunk rotation decreased MAWL and MWL by 9.1 and 17.3%, respectively, and asymmetric lifting with body turn decreased MAWL and MWL by 6.1%, wh...

Aiming at the sensitivity to initial value and long computation time spent on iteration and programming the reference trajectory in reentry trajectory optimization for hypersonic vehicles, we propose a trajectory programming algorithm, which is based on drag acceleration profile. First of all, models of motion in reentry process of vehicle are built and an independent variable is introduced for...

BACKGROUND #ENTITYSTARTX02014; Sometime, it's difficult to distinguish the electrophysiological mechanism of some tachycardia, and so, influencing the efficacy and safety of ablation operation. Therefore, it's helpful to analysis some tachycardia in particular mechanism, as in this case. METHODS AND RESULTS #ENTITYSTARTX02014; A 49 years old Chinese male patient had a history of paroxysmal pa...

To evaluate the role of perinodal tissue in the genesis of atrioventricular (AV) nodal reentry, echo beats were induced by programmed stimulation in nine superfused rabbit atrial-atrioventricular nodal preparations. In these preparations, extracellular bipolar electrograms were recorded simultaneously from the crista terminalis, interatrial septum arid His bundle, along with microelectrode acti...

A semantic formulation of Lindley and Stark’s >>-lifting is given. We first illustrate our semantic formulation of the >>-lifting in Set with several examples, and apply it to the logical predicates for Moggi’s computational metalanguage. We then abstract the semantic >>-lifting as the lifting of strong monads across bifibrations with lifted symmetric monoidal closed structures.