The process of using practices and procedures to prevent contamination from pathogens. It involves applying the strictest rules minimize risk infection. Healthcare professionals use aseptic technique in surgery rooms, clinics, outpatient care centers, other health settings. present study aimed evaluate nursesꞌ about operation room. A quantitative design (descriptive study) was carried out at Al...

BACKGROUND Memantine is an N-methyl-D-Aspartate (NMDA) antagonist. By transferring acute postoperative pain, the NMDA channels may lead to active excess and neuropathic pain. Objectives: This study attempted to investigate the effect of preoperative use of single oral dose of memantine in controlling Dacryocystorhinostomy (DCR) postoperative pain. METHODS A double-blind clinical trial was con...

The instruments for laparoscopic surgery are usually available in a disposable and in a reusable type. We performed a prospective, randomized study, based on the most frequent laparoscopic operation, the cholecystectomy, in order to directly quantify and compare the advantages and disadvantages of both types of instruments. 158 patients, who planned to undergo a cholecystectomy, were randomly d...

An intermediate band solar cell which generates photocurrent due to sequential absorption of two sub-bandgap photons at temperatures up 300 K was realized. The is comprised a “quantum ratchet” semiconductor nanostructure designed store the photoelectron in long-lived state that allows for efficient optical re-absorption; it incorporates potential barrier both increase confinement electrons and ...

BACKGROUND Postoperative analgesia is important because it prevents the adverse effects of pain. To study the effect of preoperative or intraoperative application of dexketoprofen on postoperative analgesia and patient comfort in patients undergoing septorhinoplasty. PATIENTS AND METHODS A randomized, double-blind, placebo-controlled study. The study included 100 patients randomly assigned to...