For many English as a Foreign Language (EFL) teachers working contingently with language learners’ problematic learner contributions in classroom interaction still remains a challenge. Drawing on conversation analysis methodology and using sociocultural and situated learning theories, this longitudinal case study traces the progressional changes in one Iranian English language teacher’s repairi...

Generally, the failure rate and the repair time of system components are constant parameters in reliability assessment of electric distribution systems. A failure of component is resulted from failing in the operation or overloading. In addition, there exist cases where, the repair times of components are small and tolerable from customer point of view. Thus, tolerable repair times may be overl...

this study compared the push-out bond strength of endosequence root repair material (errm) and bioaggregate (ba), new bioceramic materials, to that of mineral trioxide aggregate (mta) after incubation in phosphate-buffered saline (pbs), a synthetic tissue fluid, for either 1 week or 2 months.one-hundred and twenty root sections were filled with proroot mta, ba, or errm. each tested material was...

background: this study aimed to assess dermis fat graft (dfg) as a choice to correct the tissue deficit in the free border of the upper lip in cleft lip repair surgery. materials and methods: thirty?five individuals who referred to alzahra hospital at 2013–2014,with lip deformity following the primary repair surgery of cleft lip underwent surgery by dfg technique. outcomes were assessed 4 month...

background: in this experimental study, the radiographic and biomechanical characteristics of osteoperforated rabbit tibia during bone repair period were investigated. materials and methods: using dental drills, 2 mm holes were drilled at the mid-shaft of right tibia in 12 new zealand white rabbits. the left tibia was intact and selected as the control. x-rays of the left and right tibias were ...

introduction: the low regeneration of bone in defective bones causes therapeutic problems. various strategies to assess the healing of bone defects have been used which they include histological and histo-chemical analysis in an invasive study. the purpose of this study was to determine the ultrasonic parameters of bone as a promising noninvasive technology for assessing bone repair process. ma...

introduction: in ramadan, healthy adult muslims are obliged to fast. prolonged fasting increase gastric acid and pepsin levels, which promote the risk of duodenal ulcer perforation (dup). effects of ramadan fasting on dup have not been thoroughly studied yet, and the limited number of studies investigating the impact of ramadan fasting on dup yielded discrepant results. this study aimed to eval...

background peripheral nerve repair is often complicated by fibroblastic scar formation, nerve dysfunction, and traumatic neuroma formation. use of silicone may improve outcomes of these repairs. in this study, we tried to evaluate effectiveness of silicone gel on rats’ sciatic nerve repair, axon regeneration and scar formation around and in the nervous tissues. methods this experimental study w...

objectives: repairing composite restorations is a challenging procedure especially when two different types of composites are used. this study aimed to compare the repair strength of silorane-based composite (sc) (filtek p90) with that of preheated sc, methacrylate composite (mc)(z250), flowable mc (filtek supreme plus) and different adhesive/composite combinations. materials and methods : eigh...