Introduction: Endorphins are produced by cardiomyocytes, and exert different effects on the heart. The aim of the present study is to assess morphine effects on extracellular atrioventricular (AV) node field potential pattern and ventricular rhythm of isolated rabbit heart during experimental atrial fibrillation (AF). Methods: Effects of different concentrations of morphine (10, 20, 50 and 1...

Introduction: Intranodal pathways of atrioventricular (AV) node play a vital role in the delay of conduction time in response to various atrial inputs. The present study was aimed to determine the frequency-dependent electrophysiological properties of concealed slow pathway according to a functional model of isolated rabbit atrioventricular node preparation after fast pathway ablation. Meth...

OBJECTIVE To compare the mid-term results after aortic valve (AV) repair in bicuspid AVs with those in tricuspid AVs. METHODS Between 2000 and 2010, 100 patients (mean age 47.2 years) underwent AV repair procedures for insufficient bicuspid AV (n=43) and tricuspid AV (n=57). Aortic regurgitation (AR) more than moderate was present in 31/43 and 21/57 patients in the bicuspid AV and the tricusp...

OBJECTIVE The effects of Lactobacillus rhamnosus GG (LGG) and Aloe vera (AV) gel on lipid profiles in rats with induced hypercholesterolemia were studied. METHODS Five treatment groups of rats (n = 7) were the fed experimental diets: a normal control diet, a hypercholesterolemic diet (HD), HD + LGG, HD + AV gel, and HD + LGG + AV gel. RESULTS Supplementation with LGG decreased serum total c...

Talker localization is indispensable in video conferencing. Statistical audio-visual (AV) talker localizers that fuse AV features based on prior statistical property are ideals. However, statistical property must be estimated prior to the AV feature fusion procedure. To overcome this problem, this paper proposes a novel robust and omnidirectional AV talker localizer that dynamically fuses AV fe...

In this study, a single-step method for green synthesis of silver nanoparticles usingAloe Vera gel extract and sunlight was investigated. The Aloe Vera gel extractis composed of pectins, lignin, and hemicellulose, which can be used in thereduction of silver ions to produce colloidal silver nanoparticles (AgNPs-AV). Thepreliminary preparation of silver nanoparticles was o...

The digitization of library documents and archives increasingly extends to audiovisual (AV) document repositories. As a consequence, new computer-aided techniques are being devised, providing opportunities for new uses of AV documents. As scholars work mainly by reading, annotating, reusing, and producing documents they are directly concerned by these changes. The rst part of this article descr...