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 ...
Simple organic molecules that can directly activate carbon–hydrogen bonds when photoexcited are effectively limited to carbonyls. Now, neutral acridines, nitrogen-containing aromatic heterocycles, are ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results