each year many large scale national projects face execution problems. in this regard, riskmanagement can play a significant role in identifying and taking proper measures. in this research,using project management body of knowledge (pmbok), a risk management procedure has beendesigned and implemented in transmission and high distribution power lines of khorasan regionalelectric company. first, ...

Visual search is the task of nding a target in an image against a background of distractors. Unique features of targets enable them to pop out against the background, while targets deened by lacks of features or conjunctions of features are more diicult to spot. It is known that the ease of target detection can change when the roles of gure and ground are switched. The mechanisms underlying the...

Visual search is the task of finding a target in an image against a background of distractors. Unique features of targets enable them to pop out against the background, while targets defined by lacks of features or conjunctions of features are more difficult to spot. It is known that the ease of target detection can change when the roles of figure and ground are switched. The mechanisms underly...

extract  this article is about sports training that reduce pain after cesarean delivery. this method not only for women but also for other women and men who have abdominal surgery is beneficial. this method is based on relaxation , facilitate deep breathing and after surgery coughing. after that, some advices is given to patients for pain relief.   exercises to relax the muscles:   naturally af...