Physicists at Peking University have uncovered a new way to confine light far beyond conventional limits — without relying on ...

In the brain, specific electrical waves are associated with different states of consciousness. For instance, delta waves—also known as slow waves—are especially prevalent during deep sleep, as well as ...

Abstract: The four stages (first heart sound (S1), systole, second heart sound (S2), and diastole) of heartbeat sounds recorded by contact seismocardiogram (SCG) reflect the health of the heart, but ...

An international team of scientists has developed a new analysis of how sound waves behave, revealing surprising effects that ...