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 ...

Hypertension affects an estimated 50 to 60 million Americans and is one of the major epidemics of the modern era. The management of hypertension has undergone major changes in recent years, with the ...

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 Pictoris B takes almost 25 years to make a lap around its star, but you can see most of the journey condensed into a ten-second video clip. Northwestern University astrophysicist Jason Wang and ...

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 ...