Noise is a fundamental component of confocal images, a result of discreet digital sampling of continuously emitting photons from samples. The contribution of noise to image quality (signal-to-noise ...

Tough and charming, some old tools will outlive their owners but not their function -- hammering, cutting, and chopping for ...

Natural selection uses duplicated genes as raw material for functional innovation, co-opting their existing features to new functions. Understanding genetic innovation requires two questions to be ...

Several vitamins and supplements can provide additional support for stress, in addition to exercising regularly, getting enough sleep, and eating a nutritious diet Here are the best vitamins and ...