OBJECTIVE To compare the effectiveness of the alveolar recruitment maneuver and the breath stacking technique with respect to lung mechanics and gas exchange in patients with acute lung injury. METHODS Thirty patients were distributed into two groups: Group 1 - breath stacking; and Group 2 - alveolar recruitment maneuver. After undergoing conventional physical therapy, all patients received b...

background and objectives: making stacking gels for polyacrylamide gels in the laboratory by conventional methods is laborious and time consuming. considering the role of temperature in polyacrylamide gels with respect to electrical resistance and viscosity, we assumed that decreasing the temperature would cause an increase in electrical resistance and viscosity.  ultimately, a downward tempera...

Most parallel garbage collection algorithms are based on the mark-and-collect technique. A mark-and-collect technique an effective asynchronous marking algorithm. There are two basic marking techniques: coloring and stacking. The coloring technique is asynchronous but its time complexity is O(MN) where M and N are the total number of nodes in the list memory and the total number of active nodes...