Cepheid variable stars exhibit regular pulsations whose period directly correlates with their intrinsic brightness (absolute luminosity). The Leavitt law establishes this relationship between ...

This is a preview. Log in through your library . Abstract Data Envelopment Analysis has now been extensively applied in a range of empirical settings to identify relative inefficiencies, and provide ...

This is a preview. Log in through your library . Abstract This study evaluated 928 students over a period of two 16-week semesters. Attendance, gender, classification, and major were recorded for all ...

SPOILER ALERT: If you haven’t yet taken our Science Knowledge Quiz, please do so before reading this any further because we give away one of the answers. In a recent survey of what Americans know ...

Researchers have created a panel of genetically diverse mice that accurately model the highly variable human response to SARS-CoV-2 infection. The team uncovered differences in the innate immune and ...