The best after-Christmas deals – CNET

Christmas has come and gone — but plenty of great deals are still available.

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Thermoelectric power generation at room temperature: Coming soon?

A research team has created a thermoelectric material with promising performance at room temperature. Ytterbium silicide is a good electrical conductor. It also has a high Seebeck coefficient thanks to Kondo resonance (fluctuation of f-electrons), which increases its power factor. Its layered structure further promotes the thermoelectric effect by blocking heat conduction. This non-toxic, room-temperature thermoelectric material is competitive with conventional bismuth telluride, and could be used for power generation or refrigeration.

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Uber reportedly selling failed leasing business to Fair.com – Roadshow

The company has been shopping around shuttered Xchange Leasing since September.

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‘Doctor Who’ introduces Jodie Whittaker’s Doctor to the TARDIS – CNET

Meet the new boss, not the same as the old boss. Peter Capaldi passes the torch to the first female Doctor.

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Amazon marks “biggest” holiday season with lots of Alexa – CNET

The company’s voice-activated devices are everywhere this year.

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Development of a nanowire device to detect cancer with a urine test – Nanotechnology News (press release)

Development of a nanowire device to detect cancer with a urine testNanotechnology News (press release)Cells communicate with each other through a number of different mechanisms. Some of these mechanisms are well-known: in animals, for example, predatory threats can drive the release of norepinephrine, a hormone that travels through the bloodstream and …

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What Amazon’s Alexa economy pays the people building its skills – CNET

Who’s creating Alexa skills? Indie developers and marketing companies looking to profit from voice-controlled computing. Some cash in, and some don’t.

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New Kindle? Load it with the best sci-fi and fantasy of 2017 – CNET

Here’s our roundup of 2017′s top science-fiction and fantasy novels.

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