Adolescents who are chronically exposed to family turmoil, violence, noise or other chronic risk factors show more stress-induced physiological strain on their organs than other youth. But when they have supportive mothers, they do not experience these changes, finds a new Cornell study.

The identification of the molecule - which passes from leaves to shoots - could help plant breeders create crops that flower at just the right time

Carefully cooking plastic solar cells creates a network of crystal 'whiskers' that prevent electrical traffic jams