These powerful side-by-side snapshots of past and present speak louder than words, showing us how time changes things but ...

Upward comparisons—spotting the gap between who I am and who I aspire to be—often lead to dissatisfaction. People scroll for ...

A graphene quantum dot (GQD) used as the photosensitizer with high two-photon absorption in the near-infrared region, a large absolute cross section of two-photon excitation (TPE), strong two-photon ...