Over the years,researchers have identified several substances in the blood that can serve as what they call cardiac biomarkers.

VOA: special.2009.07.15

He discusses how scientists over the years have identified the experience and developed theories to explain it.

VOA: special.2010.02.24

Over the past few months, we identified over 25, 000 tablet owners online, using our polling application that is spread across hundreds of websites, and segmented all of these people based on the brand of tablet they primarily use.

FORBES: What Does Your Tablet Say About You?

First identified over the weekend, there are now at least four variants of the malicious worm.

CNN: Sasser worm rips through Internet

Government agencies have identified over 580 reform proposals and already acted on over 100 of them.

WHITEHOUSE: A Smarter Approach to Regulation