National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Waveguide-enhanced Raman spectroscopy utilizes electromagnetic enhancements at waveguide surfaces to improve Raman signal intensity. This Primer discusses laser selection, waveguide design, light ...

THE volume under review is the fourth edition, revised and enlarged, of a “Biological Monograph” first published in 1925. As the editors point out, “Conspicuous progress is now being seen in the field ...