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南海热带低压持续影响琼桂粤等省份 多部门会商部署防范应对工作_我的网站

A |     中新网8月21日电 据应急管理部网站消息，8月21日，国家防办、应急管理部组织中国气象局、水利部、自然资源部、工业和信息化部、住房城乡建设部、交通运输部等部门以及黑龙江、江苏、福建、广东、广西、海南等重点省份联合会商，研判南海热带低压及强降雨发展态势和黑龙江干流、太湖流域防洪形势，部署防汛防台风工作。                        　　会商指出，当前海上热带系统活跃，南海热带低压持续影响华南沿海省份，预计24小时内将加强为热带风暴，给琼桂粤等多地带来强风雨天气，局地雨量大；黑龙江第2号洪水正在向下游演进，太湖流域缓慢退水但仍超警戒水位，须加强防范。         　　会商强调，相关地区各级防指、各有关部门要深入贯彻习近平总书记重要指示精神，树牢底线思维、极限思维，全力保障人民群众生命财产安全。    The same technology that may power the next generation of mobile networks has been shown to increase the growth of brain cells in mice, according to a new study from Xian Jiaotong University in Beijing.,Radio waves in the terahertz frequency can transmit data at speeds up to 1 terabit (or 125 gigabytes) per second, it is a prime candidate for the next generation of mobile cell phone networks if it can be proven safe. By contrast, current 5G networks use millimeter waves that top out at 20 gigabits (2.5 gigabytes) per second.,But there may be another use for terahertz radio waves: treatment of neurological disorders like Alzheimer’s disease, autism, and Parkinson’s disease.,Science & Tech'Vicious Cycle' Between Alzheimer's Dementia and Daytime Napping Found by Scientists17 March, 19:05 GMT,The researchers exposed mice neurons in a petri dish to 100-microwatt pulse radiation, ranging from 0.3 terahertz to 3 terahertz. The result was that the exposed neurons grew at a rate of 150% compared to the control group. The length of connections also doubled in three days. Despite the accelerated growth, the brain cells appeared healthy.,The accelerated brain growth was not permanent; it slowed two days after exposure.,However, a 2009 study by the Russian Academy of Sciences showed that prolonged exposure to strong terahertz radiation had an adverse effect, increasing the temperature of brain cells, disturbing their development and causing dehydration of the cells which reduces their size and causes other damage.,But Li Xiaoli, the lead scientist of the new Beijing study, thinks that the negative effects of terahertz radiation could be avoided by limiting the strength and duration of exposure.,“The safety of terahertz radiation protocol is a top concern,” Li said. And while the health concerns of terahertz radiation remain, it could, Li believes, be used to treat neurological disorders.,“Abnormal neuron development and the resulting abnormal neural network structure can lead to the occurrence of various psychiatric and neurological diseases, such as Alzheimer’s disease, autism and Parkinson’s disease,” the study’s authors said.,The authors believe that a lower dose of terahertz radiation could increase the production and the activity of certain proteins responsible for brain cell growth, namely GluA1, GluN1, and SY-38. The researchers theorize that is because they contain hydrogen bonds that constantly vibrate at a frequency that falls in the terahertz range. The radio waves combine with the proteins and cause them to resonate in a “non-linear manner,” according to Li, which could “affect the shape of the proteins, and therefore the structure and function of neurons.”However, because proteins vary significantly from each other, only certain proteins are affected by the terahertz radiation at low frequencies. Li says more investigation is needed to learn how proteins react to different exposure intensities.,The study backs up another done at the Institute of Brain Science at Xian Jiaotong University that was published in June. That study found that terahertz exposure could make young mice more intelligent. There, scientists exposed mice to 90-milliwatt terahertz radiation for 20 minutes a day for three weeks. They observed that the exposed mice had more brain cells and were quicker at escaping mazes. However, for reasons that remain unclear, the same effect was not observed in older mice.。

B | 要突出抓好船回港、人上岸避险措施，持续细化落实应急预案和防御机制，严格执行防台风“六个百分之百”要求，做到“一人不漏、一船不落”。要突出抓好预警响应联动，密切监视热带低压发展变化，滚动开展联合会商，加密预报预警，及时启动应急响应，梯次落实海上、近岸、陆地防汛防台风各项措施。要突出抓好重要设施和重点部位防范，加强对重点领域基础设施和生命线工程安全检查，强化对山洪和地质灾害易发区、城乡易涝区、旅游景区隐患排查，提前转移受威胁人员。要突出抓好统筹协调和应急处置，各级防指和应急管理部门要充分发挥抓总作用和综合救援优势，动态指挥调度，高效抢险救援，切实落实应急处置各项措施。【编辑:曹子健】。

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