Brazilian Journal of Cardiovascular Surgery In times of economic crisis, with the government cutting funds in various sectors, including science and technology, with serious consequences in scientific research and, consequently, the production of good articles, periodicals must learn to reinvent themselves in order to be most read/accessed by attracting more interesting studies. To make matters...

a bstrac t   background: organizational and structural obstacles are a group of major obstacles in achievement of appropriate family planning counseling. detection of these obstacles from the viewpoint of managers, staffs and clients who are key members in health services providing system is a major step toward appropriate planning to modify or delete this group of obstacles. the present study ...

the problem of navigation among movable obstacles (namo) is to find a collision free path for a robot while the robot is able to manipulate and transfer some objects (if possible or needed) to clear its path toward the goal. namo is a np-complete problem and is in a class of motion planning problems that have dynamic environments. in this domain, an optimal plan for the robot can be defined wit...