The vast majority of our planet’s oceans remain unexplored, hiding secrets that challenge everything we thought we knew about human history and geology. Every so often, sonar technology or daring deep ...

An autonomous research sub sent beneath the Antarctic ice returned images of vast, sculpted structures that no one can yet explain, then dropped off the map before it could surface. The disappearance ...

Is innovation inherently a hit-or-miss endeavor? Not if you understand why customers make the choices they do. by Clayton M. Christensen, Taddy Hall, Karen Dillon and David S. Duncan For as long as we ...

Correspondence to Professor Teppo L N Järvinen, Department of Orthopaedics and Traumatology, University of Helsinki, Helsinki 00100, Finland; teppo.jarvinen{at}helsinki.fi Arthroscopy heralded an age ...

Objective To evaluate systematic reviews of randomised controlled trials (RCTs) on the effects of exercise on general cognition, memory and executive function across all populations and ages. Methods ...

Dawson, C. R., and Tarpley, W. B., in “The Enzymes”, 2, 454 (edit. J. B. Sumner and K. Myrbäck, Acad. Press, New York, 1951).