In this paper, a new method was proposed for the navigation of a mobile robot in an unknown dynamic environment. The robot could detect only a limited radius of its surrounding with its sensors and it went on the shortest null space (SNS) toward the goal. In the case of no obstacle, SNS was a direct path from the robot to goal; however, in the presence of obstacles, SNS was a space around the r...

Background: Pseudomonas aeruginosa, as an etiological agent, has a prominent infection role in serious burned patients. Burned patients usually treated with antiseptic ointments such as silver sulfadiazine (SSD). This study evaluated the effectiveness of 1% SSD and different concentrations of silver nitrate solution (SNS) on resistant isolates of P. aeruginosa. Methods: Three groups of P. aerug...

in this paper, a new method was proposed for the navigation of a mobile robot in an unknown dynamic environment. the robot could detect only a limited radius of its surrounding with its sensors and it went on the shortest null space (sns) toward the goal. in the case of no obstacle, sns was a direct path from the robot to goal; however, in the presence of obstacles, sns was a space around the r...

We demonstrate how our methodological approach helps to understand social network sites (hereinafter SNS) users‘ alternative privacy strategies. To this end, we refer to one of our recent empirical studies and describe the effects of users’ avoidance of provided privacy controls. Many studies document that users rarely use Facebook’s friendlist feature because they consider creating, maintainin...

background : pseudomonas aeruginosa , as an etiological agent, has a prominent infection role in serious burned patients. burned patients usually treated with antiseptic ointments such as silver sulfadiazine (ssd). this study evaluated the effectiveness of 1% ssd and different concentrations of silver nitrate solution (sns) on resistant isolates of p. aeruginosa .   methods : three groups of p....