ProQuest® will be performing infrastructure maintenance on Saturday, August 18, 2012. A twelve (12) hour maintenance window will be required for this maintenance to install the latest enhancements to the ProQuest platform. The window will take place from Saturday, August 18 2012, at 7:00 PM PST to Sunday, August 19, 2012 at 7:00 AM PST All ProQuest databases will be offline during this time-period.