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

In 1925, Edwin Hubble's observation of Cepheid variables in the Andromeda galaxy revolutionized astronomy, proving the ...

A new AI program observed physical phenomena and uncovered relevant variables -- a necessary precursor to any physics theory. But the variables it discovered were unexpected. A precursor step to ...

Cell, the flagship biology journal of Cell Press, presents a landmark issue on sex and gender in science. It includes a collection of articles on topics related to strategies for promoting gender ...

This is a preview. Log in through your library . Abstract The purpose of this paper is to show how latent variable growth modeling can be utilized to examine change in students' attitudes toward ...