BACKGROUND Cardiopulmonary resuscitation (CPR) training rates in the United States are low, highlighting the need to develop CPR educational approaches that are simpler, with broader dissemination potential. The minimum training required to ensure long-term skill retention remains poorly characterized. We compared CPR skill retention among laypersons randomized to training with video-only (VO; ...

This study aimed at combining an iron-based, steady-state, vessel size index magnetic resonance imaging (VSI MRI) approach, and a gadolinium (Gd)-based, dynamic contrast-enhanced MRI approach (DCE MRI) to characterize tumoral microvasculature. Rats bearing an orthotopic glioma (C6, n=14 and RG2, n=6) underwent DCE MRI and combined VSI and DCE MRI 4 h later, at 2.35 T. Gd-DOTA (200 mumol of Gd p...

BACKGROUND The length of current 4-h classes in cardiopulmonary resuscitation (CPR) is a barrier to widespread dissemination of CPR training. The effectiveness of video-based self-instruction (VSI) has been demonstrated in several studies; however, the effectiveness of this method with older adults is not certain. Although older adults are most likely to witness out-of-hospital cardiac arrests,...

The mechanism underlying spike timing-dependent neuromodulation (STDN) was investigated in the opisthobranch mollusc Tritonia diomedea. The serotonergic dorsal swim interneurons (DSIs) dynamically modulated the synaptic output of ventral swim interneuron B (VSI); immediately after DSI stimulation, there was a potentiation of VSI synaptic strength followed by a longer-lasting synaptic depression...

This paper presents a theoretical study of the electronic and dynamic properties silicon vacancies self-interstitials in 4H–SiC using hybrid density functional methods. Several pending issues, mostly related to thermal stability this defect, are addressed. The site vacancy carbon-related antisite-vacancy (CAV) pair interpreted as unique bistable defect. It possesses metastable negative-U neutra...

This paper explains the experimental study of a distributed energy resource (DER) integrated three-phase, three-wire electrical distribution system (EDS) under power quality (PQ) and optimal active flow control (OAPFC). In this research, back-to-back connected two-level VSI (BTB-TVSI) based static compensator (DSTATCOM) for unbalanced non-linear load is designed. The aim to provide better OAPFC...

Context. Dynamical and turbulent motions of gas in a protoplanetary disk are crucial for their evolution affect planet formation. Recent observations suggest weak turbulence the disk's outer regions. However, physical mechanism these regions remains uncertain. The vertical shear instability (VSI) is promising to produce disks. Aims. Our aim study observability velocity structure produced by VSI...