Intrauterine pathologies have been shown to be present in 25% of infertile patients.Structural abnormalities of the uterine endometrial cavity may affect the reproductive outcome adversely, by interfering with the implantation or causing spontaneous abortion. Intrauterine abnormalities may visualize using a variety of techniques. Including hysterosalpingography (HSG), transvaginal sonography (T...

atraumatic restorative treatment (art) is a minimal intervention technique in the management of carious lesions, which results in negligible discomfort to the patient. the aim of this study was to assess and compare the discomfort levels during atraumatic restorative treatment and minimal cavity preparation (mcp: a method using rotary instruments) treatment procedures in a sample of school chil...

in this article, the effect of cells' radius on the behavior of wavelength switching optical filter andthe effect of the radius of the optical filters' key characteristics such as wavelength resonance onan optical filter based on photonic crystals, have been investigated. currently, the most commonapplied mechanism for designing optical filter based on photonic crystals is using twome...

introduction: this study investigated the influence of erbium-doped yttrium aluminum garnet (er:yag) laser on microhardness, chemical composition and subsurface morphology of dentin cavity walls. methods: forty sound human premolars were selected and randomly assigned into four groups. class v cavities were prepared either with an er:yag laser (groups 1 and 2; 15 hz, 250 mj for enamel, 10 hz, 2...

in this research, some more applicable ferrofluids are produced and their mechanical specifications are measured, experimentally. also, their treatments in the ventilated cavity geometry are assessed numerically. the magnetite nanoparticles are produced by a chemical combination of fe2+ and fe3+ with nh3. in order to solve the nanoparticles in the new mediums, a proper coating is added to them....

conclusions bacterial infection has been suggested in the pathogenesis of both ss and cs. in addition, h. pylori is a resident of the oral cavity, thus may be involved in the development and progression of these lesions. hence, search for h. pylori antibody in blood of patients with ss is suggested. background sjogren’s syndrome (ss) is a chronic autoimmune disease characterized by lymphocytic ...

this paper presents results of a numerical study of mixed convection and entropy generation of cu–water nanofluid in a square ventilating cavity at different inclination angles. except a piece of bottom wall with a uniform heat flux, all of the cavity walls are insulated. the inlet port is placed at the bottom of the left wall and the outlet port is positioned at the top of the right wall. entr...

In the present paper, resonant frequencies and modes of a three-atom photonic molecule and a photonic crystal placed within a cavity are numerically calculated. First, governing formulation in transverse electric field mode (TE) is obtained using Maxwell equations. Then, an algorithm based on a finite difference scheme and matrix algebra is presented. The algorithm is then implemented in a comp...

Background:  After breast conserving surgery, most recurrences occur around the primary tumor site. This justifies the use of boost radiotherapy to the primary site of tumor. Surgical scar is not always a good surrogate for the location of the lumpectomy cavity. The aim of this study was to evaluate ultrasonic guidance for detection of the lumpectomy cavity after breast conserving surgery ...