Your systolic blood pressure and diastolic blood pressure describe the pressure on your arteries at different points in your heart beat.

We thank Zhang et al for their interest in our study and for their thoughtful comments on the accuracy of endoscopic ...

You probably learned in high school chemistry class that core electrons don't participate in chemical bonding.

A supercritical fluid refers to a state in which the temperature and pressure of a substance exceed its critical point, where ...

Pressure vessels are weakened when nozzles must be introduced, and reinforcement is required to compensate. Presented here ...