BACKGROUND T2-weighted cardiovascular magnetic resonance (CMR) has been shown to be a promising technique for determination of ischemic myocardium, referred to as myocardium at risk (MaR), after an acute coronary event. Quantification of MaR in T2-weighted CMR has been proposed to be performed by manual delineation or the threshold methods of two standard deviations from remote (2SD), full widt...

به دلیل عدم قطعیت‌های شناختی، تصادفی و محدودیت‌های انعطاف پذیر، در این مطالعه مدل جدیدی از برنامه‌ریزی محدودیت شانس انعطاف‌پذیر، امکانی، استوار مختلط بر مبنای تئوری اعتبار برای طراحی شبکه زنجیره تامین حلقه بسته توسعه داده شد. نگرش‌های متفاوت تصمیم‌گیرندگان با اندازه‌گیری انعطاف‌پذیرتر پارامترهای خوش‌بینانه بدبینانه قالب معیار پاسخ حداقل سطح رضایت انعطاف‌پذیر حل بهینه گردید. پیشنهادی، قادر کاهش ...

Streaking artifacts on computed tomography (CT) images are caused by high density materials such as hip prosthesis, surgical clips and dental fillings. The artifacts can lead to compromised clinical outcome due to the inability to differentiate tumor volume and the uncertainties in dose calculation. The goals of our study are to evaluate how GE’s smart metal artifact reduction (MAR) algorithm i...

Introduction: Metallic artifacts due to pacemaker/ implantable cardioverter defibrillator (ICD) leads in CT images can produce artifactual uptake in cardiac SPECT/CT images. The aim of this study was to determine the influence of the metallic artifacts due to pacemaker and ICD leads on myocardial SPECT/CT imaging. Methods: The study included 9 patients wh...

Matrix attachment regions (MAR) generally act as epigenetic regulatory sequences that increase gene expression, and they were proposed to partition chromosomes into loop-forming domains. However, their molecular mode of action remains poorly understood. Here, we assessed the possible contribution of the AT-rich core and adjacent transcription factor binding motifs to the transcription augmentin...

Abstract Background: The aim of this study was to evaluate the efficacy and safety of phacoemulsification and the implantation of intraocular lenses (IOL) combined with trabeculectomy supplemented by releasable sutures and antimetabolite agents. Methods:Phacotrabeculectomy was performed in 36 eyes of 30 patients who hadmedically uncontrolle...

The genome of eukaryotes is organized into structural units of chromatin loops. This higher order organization is supported by a nuclear skeleton called the nuclear matrix. The genomic DNA associated with the nuclear matrix is called the matrix associated region (MAR). Only a few genome-wide screens have been attempted, although many studies have characterized locusspecific MAR DNA sequences. I...

AIM To compare a novel, fully synthetic, polyurethane based glue (MAR-1) to fibrin sealant in a partial liver resection rat model. METHODS After 50% resection of the lateral left liver lobe in male Wistar rats (n = 7/group/time point), MAR-1, Fibrin or NaCl was applied. After 14, 21 and 90 postoperative days, sealant degradation, intra-abdominal adhesions were scored, and histological examina...

In order to understand the role of the mar locus in Salmonella with regard to multiple antibiotic resistance, cyclohexane resistance, and outer membrane protein F (OmpF) regulation, a marA::gfp reporter mutant was constructed in an antibiotic-sensitive Salmonella enterica serovar Typhimurium DT104 background. Salicylate induced marA, whereas a number of antibiotics, disinfectants, and various g...