Objective: To assess the role of office hysteroscopy (OH) in the evaluation of infertile women with normal HSG who fail to conceive after undergoing controlled ovarian stimulation/intrauterine insemination (COS/IUI).Design: Prospective cohort study.Materials and methods: The study included 141 patients with absent pelvic pathology on trans vaginal
Introduction: Root canal preparation may cause inadvertent apical extrusion of debris causing postoperative pain.This debris varies with the instrumentation technique and design characteristics.One of the major revolutions in the design of the instruments is the introduction of files with an offset center of mass or/and rotation, which causes asymm
Scrap processed in the electric arc furnace (EAF) process in the form of car bodies or housings of household appliances generates dust containing a large amount of zinc.Coke or anthracite is currently used as 124 a reducer in pyrometallurgical technologies used for the processing of waste zinc-bearing materials.The article presents the results of r