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New plastic holds promise for advanced optical chips

Researchers have developed a hybrid plastic that can produce light at wavelengths used for fibre-optic communication, paving the way for an optical computer chip. The material, developed by a joint team of engineers and chemists, is a plastic embedded with quantum dots – crystals just five billionths of a metre in size – that convert electrons into photons. The findings hold promise for directly linking high-speed computers with networks that transmit information using light – the largest capacity carrier of information available.

Researchers identify decision-making area of the brain

New research has provided the first neuro-imaging evidence that the brain’s frontal lobes play a critical role in planning and choosing actions. The research team has found that a small region in the frontal lobe of the human brain is selectively activated when an individual intends to make a particular action and not another. These findings help explain why individuals with frontal lobe damage sometimes act impulsively and often have problems making decisions.