In a nutshell, beta is a measure of how reactive a stock is to overall market movements – particularly those of the S&P 500 benchmark index. Obviously, stocks move individually, and for a variety of ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

A pre-release of software that is given out to a large group of users to try under real conditions. Beta versions have gone through alpha testing in-house and are generally fairly close in look, feel ...

Prescription beta-blockers help lower the heart rate. “Natural beta-blockers” in common foods, herbs, and supplements may also help lower blood pressure. Beta-blockers are prescription medications ...

This artist’s view shows the planet orbiting the young star Beta Pictoris. This exoplanet is the first to have its rotation rate measured. Its eight-hour day corresponds to an equatorial rotation ...

Planets acquire their rotation when they are formed, taking angular momentum from the impacts that shape them. There is a relationship between the mass of a planet and the speed of its spin, except ...

BETA-hemolytic streptococci of Lancefield Group B have been implicated in human disease almost from the time when the precipitin-grouping technic first came into use. 1–3 Since that time additional ...

B cells influence the pathogenesis of multiple sclerosis. Ocrelizumab is a humanized monoclonal antibody that selectively depletes CD20+ B cells. The annualized relapse rate was lower with ocrelizumab ...

Beta Technologies secured $375 million in Series B funding, totaling nearly $800 million in investments, to further develop and certify its Alia eVTOL aircraft. The Alia eVTOL, a battery-powered ...