Light-emitting diodes (LEDs) are widely used electroluminescent devices that emit light in response to an applied electric voltage. These devices are central components of various electronic and ...

A major review of over 67,000 animal species has found that while the natural world continues to face a biodiversity crisis, targeted conservation efforts are helping bring many species back from ...

Why are night owls at greater risk of depression? Mindfulness, total sleep quality, and alcohol consumption may help explain why people who stay up late have a greater risk of depression ...