نتایج جستجو برای: artificial stone
تعداد نتایج: 312548 فیلتر نتایج به سال:
Originally identified as an ornithischian dinosaur, Crosbysaurus harrisae has been found in New Mexico, Arizona, and its type locality in Texas, as well as in North Carolina. The genus has been reassessed by other workers in light of reinterpretations about the postcrania of another putative Triassic ornithischian, Revueltosaurus. The understanding of Triassic dental faunas has become more comp...
INTRODUCTION The accurate diagnosis of submucosal ureteral stones in order to choose a proper and less complicative method of treatment is of significant importance. The use of KUB to detect submucosal ureteral stones has been studied in this research. MATERIALS AND METHODS This prospective study has been carried out on 33 patients (23 males and 10 females) with lower ureteral stone (17 cases...
PURPOSE To determine whether the distance from skin to stone, as measured by computed tomography (CT) scans, could affect the stone-free rate achieved via extracorporeal shock wave lithotripsy (ESWL) in renal stone patients. MATERIALS AND METHODS We retrospectively reviewed the records 573 patients who had undergone ESWL at our institution between January 2006 and January 2010 for urinary sto...
For thousands of years man had been taking refuge in the caves or under the trees to safe himself from the devastating effects of natural forces. For a long time the idea of making shelters like huts or rooms never struck his mind. Although building material like clay, stone boulder, or river pebbles, were lying all round him but, he even, accidentally, did not attempt to erect any kind of shel...
By the year 2003, 47% of the world’s 6.3 billion inhabitants were living in urban areas, while in more developed countries, 75% of the population (1.2 billion) lived in urban areas (Population Reference Bureau, 2003). As more and more people make their residencies in the heart of the industrial and commercial world, urbanisation will continue to grow. Alterations to the natural environment due ...
Biofilms are complex aggregates formed by microorganisms such as bacteria, fungi and algae, which grow at the interfaces between water and natural or artificial materials. They are actively involved in processes of sorption and desorption of metal ions in water and reflect the environmental conditions in the recent past. Therefore, biofilms can be used as bioindicators of water quality. The goa...
BACKGROUND/AIMS Endoscopic therapy with endoscopic retrograde cholangiopancreatography (ERCP) has been suggested as an effective diagnostic and therapeutic tool for biliary and pancreatic disorders during pregnancy. In this report, we describe our experiences with pancreatobiliary endoscopic procedures during pregnancy. METHODS We reviewed ERCP and endoscopic ultrasonography (EUS) procedures ...
Background: Calcium tartrate tetrahydrate has been reported as the main mineral in urinary stones in rats that have significant tartrate in their diet, but in humans, there has been only one mention of calcium tartrate stones in the form of bladder stone, and that case was in Africa. Case Presentation: Patient is a 34-year-old Caucasian male who presented with typical symptoms of nephrolithiasi...
OBJECTIVE To assess the efficacy and safety of a "mini-perc" technique of percutaneous nephrolithotomy using a 14-Fr peel-away sheath for the removal of pyelocaliceal stones, and to determine appropriate inclusion criteria. MATERIALS AND METHODS From July 1999 to June 2002, the medical records and radiographic images of 72 patients who underwent the "mini-perc" technique of percutaneous nephr...
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