one of the most common complications of operation and anesthesia is shivering. the purpose of this study was to compare the effectiveness of ondanseton and meperedine in preventing shivering after off-pump coronary artery bypass graft (opcab). in this double-blind randomized clinical trial, the sample consisted of 90 patients, who were candidates of cabg under general anesthesia. these patients...

in this research using the theory of induction motor (um), a um with liquid as secondary part is planned and manufactured. the main objective for planning of this motor is to investigate the possibility of chemical liquids pumping such as liquid poison and acids. results of many laboratory tests are shown to conclude that pumping force in the manufactured pump is dependent on many factors su...

El estudio tuvo como objetivo determinar la utilidad de los consorcios bacterianos en biorreactores tipo airlift para remoción cobre aguas contaminadas. Para investigación se tomó muestra del botadero “Muyuna” ubicado el Departamento Huánuco, Provincia Leoncio Prado, Distrito Rupa Rupa. Se utilizó medios cultivo: BHI (Brain Heart infusión Broth), Agar MacConkey, Manitol Salado, cistina-lactosa,...

backround laryngopharyngeal reflux (lpr) is the backflow of stomach contents above upper esophageal sphincter, into the pharynx, larynx, and upper aerodigestive system. objectives in this study, effects of omeprazole over voice quality in muscle tension dysphonia with laryngopharyngeal reflux was ınvestigated. patients and methods nine patients, 7 males and 2 females, aged between 27-43 (mean a...

the increase of cell temperature with increased irradiance is probably the mostsignificant disadvantage of using photovoltaic modules equipped with booster reflectors. the aimof this study is to investigate the possibility of improving the performance of a photovoltaic waterpumping system by using a booster reflector and to keep the temperature of pv panels at a lowlevel by cooling pv panels wi...

we propose a new ring resonator side-coupled m-z interferometer all-optical switch throughthe pumped nonlinear directional coupler. by controlling pump power p to lead the coupler reflectivityr approaching to 1, the resonator finesse will be enhanced dramatically, and then the minimumswitching power in silica-based practice devices can be obtained. as a sample, we use a nonlinearcoupler made by...