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i'm here at st. charles cathedral where the king will hold a vigil with members of the royal family. >> the new metropolitan police chief describes the queen's state funeral as a challenge. thousands of extra officers have been called in to help manage the crowds. >> it's a massive challenge for the metropolitan meese and me personally. but we have been preparing for many, many years. >> and parts of the commonwealth mourning as they have fresh questions about the role of the monarchy. the prime minister of antiqua saying that he intends to hold a referendum on that country becoming ...

A sensor chip developed in the US can quickly detect disease pathogens with 10 times the sensitivity of currently available methods.

Technology shows promise in detecting foodborne pathogens and avian flu.

Integrated sensor chip detects late blight disease pathogen, many others.

Texas A&M AgriLife Research scientists and collaborators at Iowa State University have developed a sensor chip that can detect many disease pathogens with 10 times the sensitivity of currently available methods.