This word has appeared in 208 articles on NYTimes.com in the past year. Can you use it in a sentence? By The Learning Network This word has appeared in 31 articles on NYTimes.com in the past year. Can ...

The ECP packed column is based on current state-of-the-art extraction research. The column consists of a packed bed, distributors for the two liquid phases and, optionally, a pulsator. The special ...

In general, liquid-liquid extraction is applied where alternative separation technologies such as distillation are uneconomical, or even unsuitable. Typical examples: Simultaneous separation of ...

Kelly McBride is the NPR Public Editor, the public's representative to NPR. She serves as an independent voice on questions raised by listeners and readers of news broadcast and published by NPR. You ...

Today is November 11; thank a veteran. On the menu today: The progressive grassroots insist that they’re madder than ever about Chuck Schumer, but there’s no sign of any coalescing around an ...