The surprise of a fire alarm at school triggered the cardiac arrest - her body was unable to cope with the flood of adrenaline due to rare undisguised heart condition.

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When triggered, the personal alarm uses phone and sat-nav technology to warn that its wearer is in danger.

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Alarm bells were triggered last year when more than 40 secondary-school students in Lang Son, a small city near the Chinese border, were found to be "seriously addicted" to heroin, according to an official report.

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While putting on a brave face, Google has triggered alarm bells for the growing number of handset and tablet manufacturers--like HTC, Samsung, LG and Sony Ericsson--that rely on Android to power their devices.

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By entering the control panel, you'll find a night mode that offers a super-dim clock and alarm display for bedside duty, though we wish this mode could be triggered automatically by light sensor (very early Classics had sensors, but for whatever reason, they were later removed).

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