Background: Postoperative shivering is a common event of unknown etiology with an incidence of 5-65%.This study intended to compare the efficacy of tramadol with that of pethidine in controlling postanesthetic shivering.Methods: This double-blind clinical trial was performed on 300 consecutive patients underwent general anesthesia for elective cata
Introduction: Non-variceal upper gastrointestinal bleeding (NVUGIB) is an important healthcare problem whose epidemiology and outcomes have been changing throughout the years.The main goal of this study was to characterize the current demographics, etiologies, and risk factors of NVUGIB.Methods: Analysis of clinical, endoscopic, and outcome data fr
The removal of cutting fluids and lubrication in dry machining operations requires a good knowledge and full control of all the mechanisms that lead to tool damage.In order to optimize dry machining operations, it is necessary to clearly identify the wear patterns, determine the contact conditions and define the relationship between the contact par
Planar and vertical epicycle frequencies and local angular velocity are related to the derivatives up to the second order of the local potential and can be used to test the shape of the potential from stellar disc samples.These samples show a more complex velocity distribution than halo stars and should provide a more realistic test.We assume an ax
The basic properties of the fly ash, recycled brick powder and recycled concrete powder, compared the recycled brick powder and recycled concrete powder instead of fly ash in concrete preparation, influence on the working performance and mechanical properties; and through the modifier to improve the concrete slump loss is too large, analyzes Johnny