In the air, it is a serious pollutant. In the body, it plays a role in heart rate, blood flow, nerve signals and immune function. Nitric oxide, a gas well known to scientists for its myriad functions, ...

The first step after buildings collapse from an earthquake, bombing or other disaster is to rescue people who could be trapped in the rubble. But finding entrapped humans among the ruins can be ...

In a world that is becoming increasingly mobile, it should come as no surprise that the medical devices traditionally used in hospitals and clinics are evolving to become more portable, creating new ...