it is only thirteen years since the scanning electron microscope has been available commercially. yet, even in this short period of time, this instrument has been a powerful tool in the investigation of topography, electrical and magnetic properties, crystal structure, cathodoluminescent characteristics etc. of solid specimens. today, this type of microscope has opened its place alongside the c...

background and objective: glumerular diseases are among the most prevalent causes of renal chronic insufficiencies. this study aimed to analyze the prevalence of various kinds of glumerulonephritis based on the findings of electron microscope. materials and methods: this study had a descriptive retrospective and cross sectional strategy. slides of patients (124 cases) who had undergone kidney b...

introduction: the most important aims of root canal preparation are the removal of vital pulp tissue, remaining necrotic debris and infected dentin, eliminating the bulk of bacteria present in the root canal system. the aim of this study was to compare the cleaning efficacy of hand k-flexofiles and rotary race and k3 instruments in root canal preparation. materials and methods: a total of 60 si...

background of the study: colorectal cancer (crc) which is the third most diagnosed cancer throughout the world is steadily rising in the asian countries with the incidence rates mimicking the western counterparts. the pre-neoplastic nature of the transitional mucosa (tm) adjoining crc lacks conclusive evidence so far. pertaining to this, the study of the mucus layer, the functional component of...

lizardfish is one of the economically important fishes of persian gulf. in recent years, white, ellipsoid, round or elongated nodules were found in body cavity of this fish species which in preliminary microscopic examination were recognized as microsporidia. to determine the approximate prevalence rate of microsporidian infection and to establish its taxonomic position, 50 lizardfish were boug...