introduction central vein catheterization (cvc) is an important procedure for emergency departments (ed). despite the existence of ultrasonography (us) devices in every ed, cvc was accomplished by anatomical landmarks in many eds in iran. objective this study was designed for the evaluation of us-guided cvcs, anatomical landmark cvcs, and the promotion of us-guided cvc in iran. methods and mate...

Increasing evidence exists suggesting an important role for oxidative stress in the pathogenesis and progression of hypertension in women via a decrease of NO production after menopause. Regular physical training has been shown to upregulate antioxidant enzymatic systems, which may slow down the usual increase of oxidative stress in postmenopausal women. The aims of this study were to determine...

Peripheral blood stem cell (PBSC) collection from donors through apheresis has become the main source of stem cells for hematopoietic stem cell transplantation. This procedure requires a high blood flow venous access. A peripheral venous catheter (PVC), compared to a central venous catheter (CVC), is considered to provide safer venous access. However, initially at our institution, King Abdul-Az...

Local cooling of nonglabrous skin without functional sympathetic nerves causes an initial vasodilation followed by vasoconstriction. To further characterize these responses to local cooling, we examined the importance of the rate of local cooling and the effect of nitric oxide synthase (NOS) inhibition in intact skin and in skin with vasoconstrictor function inhibited. Release of norepinephrine...

BACKGROUND The effects of stimulus material, lexical content, and response condition on dichotic speech recognition performance characteristics were examined for normal-hearing young adult listeners. No previous investigation has systematically examined the effects of stimulus material with constant phonetic content but varied lexical content across three response conditions typically used to e...

Introduction: Central vein catheterization (CVC) is one of the main risk factors for central stenosis (CVS) occurrence in hemodialysis population. In this work we aimed to evaluate previous venous manipulation, clinical presentation, and complications patients with proved CVS. Material Methods: We retrospectively reviewed all angiographies attending our public hospital center treatment from 201...

Malay is described as an alphabetic language with salient syllabic structures. In our attempt to develop a reading intervention program for early Malay struggling readers, word analysis of Malay children’s stories was conducted. Additionally, in order to have a better understanding of Malay word structures, a cross-linguistic comparison with English was attempted. The results indicate significa...

The antimicrobial-impregnated central venous catheter (CVC) has been the most intensively studied technology for the prevention of CVC-related bloodstream infections (BSIs) over the past 30 years. Although more than a dozen randomized trials have shown significant benefit, authors of an analysis published in a recent issue of Clinical Infectious Diseases have raised questions about the efficacy...

In this work we describe the Collapsed Cooperative Video Cache (CCVC), a novel scalable technique for delivering video streams over content distribution networks (CDNs). C-CVC is based on the idea of collapsing client buffers into the proxy caches on the CDN edges nearest to the clients while enforcing transparently cooperation among clients that share the same video content. As a result of sto...

Vascular calcification (VC) and cardiac valve calcification (CVC) are the important causes to increase the risk of cardiovascular events in terms of chronic kidney disease (CKD) patients. Once VC and CVC considered a passive form of dead or dying cells, it has now emerged as a pathology results from an active and highly regulated cellular process. Recently, mechanisms of VC have been further el...