objectives: instruction of local anesthesia injection in an important part of dental education curricula. this study was performed to compare dental students’ preference with regard to tactile or visual determination of injection site for an inferior alveolar nerve block (ianb) in children. materials and methods: this crossover randomized clinical trial was conducted on dental students of zahed...

objective(s):hypothermia and decompressive craniectomy (dc) have been shown to be neuroprotective. this study was designed to evaluate neuroprotective effects of delayed singular or combination of dc and local hypothermia on stroke. materials and methods: cerebral ischemia was induced in 48 wistar rats assigned to 4 groups: control, decompressive craniectomy (dc), local hypothermia (lh), combin...

dust storms are catastrophic natural disasters that beside other disasters frequency occur in the arid and semiaridregions worldwide. drought occurrence, climate aridity, dryness of the hamoun lake cause strong winds to below.these conditions have been prepared for dust storms in sistan region. the damages to sistan society have beenmeasured using different criteria. the result shows that, peak...

one of the main factors that cause to quality loss for fresh fruit market apples is bruise damage. amongst the factors that affect apple sensitivity to bruising, major one is drop height and area profile during the impact. in the present study, four iranian apple varieties consisted of atirli, kapak, kowse and paiez that were selected and 100 fruits of each variety were picked up, then apples w...

background: effects of estrogen on bone metabolism and its protective role on prevention of osteoporosis are well   documented. however, the efficacy of estrogen treatment on bone healing is not well investigated. the drug can be delivered both systemically or locally to the bone with differences in concentrations and side effects. the aim of this study was to investigate the effect of local an...

dust storms are catastrophic natural disasters that beside other disasters frequency occur in the arid and semiaridregions worldwide. drought occurrence, climate aridity, dryness of the hamoun lake cause strong winds to below.these conditions have been prepared for dust storms in sistan region. the damages to sistan society have beenmeasured using different criteria. the result shows that, peak...

introduction: hemodialysis through creation of arteriovenous fistula (avf) is an established surgical procedure for patients with end stage renal disease (esrd). anesthetic methods management for this surgery should deal with different risk factors such as hypertension, ischemic heart disease and diabetes. intravenous regional anesthesia (ivra) or bier block anesthesia as an option for avf crea...

purpose: to compare the efficacy and safety of two local anesthetic methods; retrobulbar anesthesia and parabulbar anesthesia using ptfe intravenous cannula without needle in extracapsular cataract surgery. method: a randomized prospective partially blind study was conducted on 66 eyes of 66 patients with senile cataract who were scheduled for ecce and pc iol surgery. after randomization, 35 pa...

| This document reports on a modeling technique used to characterise a wide-band wireless local loop (WLL) operating at 2 GHz in a range of environments. The modeling of the WLL channel is based on parameters extracted from measured impulse responses. This paper focuses on modeling technique used.