The SAPO-34 catalyst was synthesized by the combination of TEAOH and morpholine templates, colloidal silica silicic acid, as source under hydrothermal conditions. effect template molar ratio on physicochemical properties each studied XRD, SEM, BET TPD techniques. XRD patterns revealed significant gel composition crystallinity particle size samples. SEM photos showed that all catalysts have cubic morphology, but their different. According to prepared this low large crystal size. analysis...

Abstract Introduction In this study, we aimed to compare metabolic risk factors, lipid indices, healthy eating index, and physical activity among premenopausal, menopausal, postmenopausal women. Methods cross-sectional a total of 4,732 women participating in the Hoveyzeh Cohort Study were placed into three groups premenopausal (n=736), menopausal (n=396), (n=917) women, according inclusion exclusion criteria . Results The prevalence syndrome was 43.3%, 55.6%, 62.8% respectively. After...

Impact of Si/Al ratio on the adsorption capacity and separation selectivity CO2/CH4 in SAPO-34 has been investigated. samples were synthesized with two ratios (0.2 0.3). A batch volumetric apparatus was used to measure equilibrium derive isotherms. The tests performed a wide range pressure from normal 3000 kPa three levels temperatures 277 298 K. Results proved decreasing ratio, 0.3 0.2, improved CO2 CH4.

Fine crystals of SAPO-34 were synthesized by preparation sol-gel precursor and hydrothermal process. The produced crystalline phase the crystal shapes analyzed XRD patterns SEM images. core-shell adsorbent was prepared formation fine layer on surface inert ceramic particles using same synthesis parameters conditions in situ crystallization. SAPO tested dynamic adsorption experiments a mixture 5% CO2 95% CH4 at 298 K 0.1 MPa, their performance compared with pure powders operational...

Background: Muscle relaxant agents usually use to facilitate tracheal intubation; however, sometimes limitations exist. Magnesium (Mg) sulfate is a candidate for muscle substitute. This study was designed determine the effect of Mg accompanied with propofol and fentanyl in patients undergoing ophthalmic surgery. Materials Methods: In double-blind randomized protocol before intubation, 40, 45, or 50 mg/kg 100 ml saline (Groups 1–3, respectively) alone (Group 4) were administrated...

Background: The ratio of partial pressure oxygen in arterial blood (PaO2) to the fraction inspiratory concentration (FiO2) is an indicator pulmonary shunt fraction. PaO2/FiO2 (P/F) used classify severity acute respiratory distress syndrome (ARDS). With same fraction, P/F decreases with increases FiO2 which may lead errors classifying ARDS. effect on has not been investigated COVID-19 pneumonia. In this study, we estimated best for calculation a sample patients ARDS due Materials and Methods:...

Background: In considering the importance of postoperative pain management and its consequences on related secondary outcomes including nausea, vomiting, operation-related complications, we aimed to compare effectiveness three analgesic agents ketamine, paracetamol, magnesium sulfate for relief associated in this trial. Materials Methods: double-blinded randomized control clinical trial, patients scheduled elective lower extremity orthopedic surgery under general anesthesia were enrolled...

Fine particles Silicoaluminophosphate-34 were synthesized by hydrothermal sol-gel method. The effect of crystallization time, as one the important synthesis factors on particle size and crystallinity, kinetic equilibrium adsorption, selectivity CO2 / CH4 has been studied in this work. adsorption isotherms are obtained at moderate gauge pressures (100 - 3000 kPa) temperatures (278, 288 298 K), parameters well heat determined for SAPO-34. observed to was be around eight that sample with higher...

Background: Postoperative pain is one of the most common complaints after elective laparoscopic cholecystectomy. The present study was aimed to evaluate effect paravertebral block using bupivacaine with/without fentanyl on postoperative and complications Materials Methods: This done 90 patients scheduled undergo Patients were assessed in two groups: case group received fentanyl, control normal saline. Primary outcomes severity at rest during coughing. Secondary cumulative morphine...

Background: Neurologic and Adaptive Capacity Scoring (NACS) has been introduced as a screening test for diagnosis of central nervous system depression due to intrapartum drugs on the neonate. This can show neurological behavioral changes even in presence normal Apgar score. NACS 20 indicators, each indicator allocating itself score zero, one or two. The aim this study was compare effects different anesthetic techniques values.Materials Methods: performed randomized, single-blind clinical...

Abstract Introduction: The prevalence of cardiovascular diseases increases with age in women, especially at menopause. Metabolic syndrome is one the important factors that cause heart disease. Therefore, importance screening people risk this syndrome, cheap tests, led to introduction new cardio metabolic indicators such as AIP, TyG and WWI. Also, due healthy eating physical activity preventing more emphasis should be placed on their use. Methods In cross-sectional study, number 4732 women...

 Corresponding author: Tel.: + 98 21 61112229; Fax: 66967784. E-mail: shfatemi@ut.ac.ir (S. Fatemi). AbstractCore-shell nano-adsorbents are a novel class of materials where solid inert material and selective ultrafine layer housed in single particle. In this work, the dynamic adsorption CH4CO2 mixture was modelled studied packed bed conventional core-shell adsorbents made from SAPO-34, comparatively. The model with SAPO-34 fine on mullite particles revealed great potential kind increasing...

The study was aimed to evaluate the safety and efficacy of fentanyl pethidine on sedative quality patients who underwent phacoemulsification cataract surgery with Propofol.In this double-blind randomized controlled clinical trial, were candidates for elective topical anesthesia enrolled. selected randomly allocated into two groups receiving sedation Propofol-Pethidine (PP) or propofol-fentanyl (PF) combinations. Demographic characteristics, hemodynamic parameters before, during, after...

Laryngeal mask airway (LMA) plays a crucial role in the field of modern anesthesia. There are different techniques to administer LMA. Here we aimed compare four methods standard, 90° rotation, 180° and thumb placement LMA mast placement.

Different techniques have been introduced to reduce the complications of nasotracheal intubation. The aim this study was compare incidence intubation in finger-guided and conventional methods.In double-blind randomized trial study, 70 patients who were candidates for oral maxillofacial surgery required nasal included finally which 33 with method 35 tubes nasopharynx analyzed at end study. Variables such as success rate, hemodynamic response, compared between two groups.There no significant...

The present study was performed to compare the effectiveness of propofol-remifentanil and propofol-hydralazine in inducing controlled hypotension patients undergoing dacryocystorhinostomy (DCR) surgery reducing their bleeding volume during surgery.The double-blind, randomized clinical trial on 70 who were candidates for DCR divided into two groups. In both groups, general anesthesia protocol performed. Moreover, first group, a syringe containing 2 mg remifentanil 20 ml distilled water (0.1...