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 ...

Have you ever worked with a group of people trying to solve a problem? There are different opinions, different considerations, and each person’s perspective provides a different angle on the problem.

Microbiology techniques are methods used for the study of microbes, including bacteria and microscopic fungi and protists. They include methods to survey, culture, stain, identify, engineer and ...

PCR-based techniques are methods that rely on the polymerase chain reaction (PCR) to amplify stretches of DNA by creating many identical or near-identical copies. For example, PCR amplification can be ...