Newer tests that may pick up EPO use can not detect Aranesp, Amgen's newer, longer-lasting version of the protein.

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More complex antivirus software can detect malware that does not yet have a signature, because of how it behaves after infecting the computer, Thakur said.

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Grant says the company is working with auto manufacturers to explore how on-board computers can help detect whether a driver is drowsy or not paying attention to the road, and allow a driver to control certain things in the vehicle -- like temperature, and in-car stereo -- using eye-control technology.

CNN: Watch this space: Eye-control to give technology a new look

Coincidentally, the National Oceanic and Atmospheric Administration (NOAA) has been accurately tracking the number of strong tornadoes for decades (weaker tornadoes are not accurately tracked, because older technology could not detect many of the smaller tornadoes that can be detected today).

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They are not as sensitive as sharks and rays, but can detect signals of the same size as those produced in water when fish move their muscles.

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In cyberspace, where attacks can launch in milliseconds, a nation might not have enough time to detect an attack and mount a defense.

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The ability to detect man-made interference is not much use unless the source can be located, however.

ECONOMIST: GPS jamming

Hence the proliferation of new health screens--many not covered by insurance--that try to detect disaster early so patients can put up a decent fight.

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