Gome Electrical Appliances Holding's jumped 2.3% in Hong Kong despite the electronics retailer announcing that it had swung to a net loss in 2012.

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But retail annual like-for-like sales fell 3.2% with weakness in the electrical and computing sector.

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Demand for electrical goods at Christmas spurred trading at Comet where like-for-like sales were up 6.2%, helped by strong television sales.

BBC: Stores reveal festive boom

Functional-imaging studies of the brain have revealed another tantalizing clue: During the aura phase, a wave of electrical activity sweeps over the outer, furrowed layer of the brain known as the cortex, at a pace of 2 to 3 millimeters per minute.

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