But they also developed a hot cell laboratory.

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Cell phones are another hot business.

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Cell phones are also hot.

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The possible health risk of cell phone radiation is a hot-button topic for many people, and this controversy is definitely not just about science.

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The Index also showed that although fuel-cell technologies remained the hottest of the hot spots in cleantech IP development, solar technologies received more attention than wind power in terms of overall patenting activity in 2010.

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