Imagine you're a researcher studying how sleep affects mood. To explore the connection, you would look at two key "variables": sleep (how much someone gets) and mood (how happy or irritable they feel) ...

The article about using animal models in human health applications was informative (C&EN, March 20, page 30). The predominant use of male rodents in many studies was shown to raise serious questions ...

A China-based research team conducted a systematic review and meta-analysis of 147 studies on how solar PV systems alter land ...