COVID-19 pneumonia started in December 2019 and caused large casualties huge economic losses. In this study, we intended to develop a computer-aided diagnosis system based on artificial intelligence automatically identify the chest computed tomography images. We utilized transfer learning obtain image-level representation (ILR) backbone deep convolutional neural network. Then, novel neighboring...

In this study we wanted to verify the diagnostic value of tilt table test (TTT) to predict the efficacy of cardiac pacing (PM) for preventing recurrences of neurally mediated reflex syncope (NMS) in patients with cardioinhibitory activity (CI) documented by implantable loop recorder (ILR). Among patients selected by ILR in the context of severe clinical presentation of NMS, we analysed those wh...

We present an investigation of the structure of the emission line region in a sample of 12 single-peaked Active Galactic Nuclei (AGNs). Using the high resolution Hβ and Hα line profiles observed with the Isaac Newton Telescope (La Palma) we study the substructure in the lines (such as shoulders or bumps) which can indicate a disk or disk-like emission in Broad Line Regions (BLRs). Applying Gaus...

Rotation curves and velocity dispersion profiles are presented for both the stellar and gaseous components along five different position angles (P.A.=5, 50, 95, 125, and 155) of the nearby barred spiral NGC 6221. The observed kinematics extends out to about 80 from the nucleus. Narrow and broad-band imaging is also presented. The radial profiles of the fluxes ratio [N II] (λ 6583.4 Å)/Hα reveal...

BACKGROUND Up to 60% of syncopal episodes remain unexplained. We report the results of a standardized, stepwise evaluation of patients referred to an ambulatory clinic for unexplained syncope. METHODS AND RESULTS We studied 939 consecutive patients referred for unexplained syncope, who underwent a standardized evaluation, including history, physical examination, electrocardiogram, head-up til...

Objective. Lipid peroxidation plays a critical role in burn-induced plasma leakage, and ulinastatin has been reported to reduce lipid peroxidation in various models. This study aims to examine whether ulinastatin reduces fluid requirements through inhibition of lipid peroxidation in a swine burn model. Methods. Forty miniature swine were subjected to 40% TBSA burns and were randomly allocated t...

هدف: این پژوهش با هدف آزمون مدل روابط بین سبک‌های مقابله و خودکارآمدی حرفه‌ای استرس ادراک شده ناشی از حرفه‌های سلامت در گروهی پرستاران انجام شد. روش: همبستگی، 151 نفر شاغل بخش‌های اونکولوژی دانشگاه علوم پزشکی تهران به پرسشنامه باورهای شغلی برای (پیسانتی، لامباردو، لوسیدی، لازاری برتینی، 2008)، نسخة کوتاه سیاهه موقعیت‌های استرس‌زا (کوهن، جانگ استین، 2006) (ولفگانگ، 1988) پاسخ دادند. مفروض روش آم...