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诺基亚将在加拿大投资3.4亿加元打造研发中心 聚焦5G技术_我的网站

A |     A team of scientists has discovered a likely explanation for why one may feel exhausted after engaging in intense cognitive work.,In their study, published in the Current Biology last week, the researchers argue that intense cognitive work, when it lasts for several hours, results in the buildup of potentially toxic byproducts in the prefrontal cortex part of the human brain, which then affects a person’s behavior.,“Influential theories suggested that fatigue is a sort of illusion cooked up by the brain to make us stop whatever we are doing and turn to a more gratifying activity,” Mathias Pessiglione of Pitié-Salpêtrière University in Paris, said as quoted in a news release by Cell Press. “But our findings show that cognitive work results in a true functional alteration—accumulation of noxious substances—so fatigue would indeed be a signal that makes us stop working but for a different purpose: to preserve the integrity of brain functioning.”,During the course of their research, the team employed magnetic resonance spectroscopy to monitor the brain chemistry of two groups of people during a workday, with one group performing easy cognitive tasks while the other engaged in more complex mental activities.,Only the latter group ended up exhibiting signs of fatigue, as well as a tendency to favor “options proposing rewards at short delay with little effort,” as the news release put it.,AmericasChild Survives After 7 Minutes Without Blood Flow to Brain During Surgery, US Cardiologist Reveals11 August, 16:41 GMT,Furthermore, members of that group had higher levels of glutamate in the synapses of the prefrontal cortex, leading the researchers to suggest that the accumulation of glutamate “makes further activation of the prefrontal cortex more costly,” and thus a mentally exhaustive workday makes cognitive control more difficult.,Unfortunately, there seems to be no fancy way to deal with this problem other than the tried and tested method that is probably as old as history itself.,“I would employ good old recipes: rest and sleep!” Pessiglione remarked. “There is good evidence that glutamate is eliminated from synapses during sleep.”。    新研发中心注重的领域将包括5G、网络安全、人工智能和机器学习，以及云计算软件、数字身份管理、关键联网设备等。该项目预计可创造逾340个中产阶级就业机会，并为科技、工程、数学等领域的大专院校学生提供实习岗位。该项目计划于2023年开始场地建设，2026年启用新设施，2027年完工。届时，诺基亚预计可在安大略省雇用逾2500名员工。为支持该项目，加拿大联邦政府将与诺基亚进行磋商，拟通过战略创新基金为诺基亚提供约4000万加元资金；安大略省政府将向诺基亚提供3000万加元贷款；渥太华市政府则将出资200万加元用于升级电力控制系统。加拿大总理特鲁多表示，该项目将在带来经济利益的同时，刺激加拿大的科技生态系统。加官方预计，5G无线技术将在未来4年内每年为该国创造400亿加元的经济价值。由于高科技企业云集，位于渥太华以西的卡纳塔被视为“加拿大的硅谷”。

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