Recent medical literature suggests that vitamin D supplementation protects against acute respiratory tract infection. Humans exposed to…
Nation 1 is seeking to join the nuclear club. Nation 2, its enemy, would like to prevent this, and has the potential to destroy 1’s bomb-…
Excess prices for drugs in the U.S. is a persistently vexing policy problem. While there is agreement among most policy analysts that supra…
Asking students to raise their hands is a time-honored feedback mechanism in education. Hand raising allows the teacher to assess to what…