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Study: ‘6G’ Radiation Boosts Brain Cell Growth in Mice_我的网站

一 |                                                           [앵커]경찰은 이번 사건을 계기로 최근 3년간 전국에서 접수된 실종 사건을 모두 조사하겠다고 밝혔습니다.그런데 30만 건이 넘는 사건을 석 달 동안 어떻게 전부 보겠단 건지, 이것부터가 의문입니다.이정은 기자가 취재했습니다. [리포트] 장미란 씨 실종 사건이 불거진 뒤 그동안 경찰이 실종 신고들을 어떻게 처리해 왔는지, 원점에서부터 다시 살펴봐야 한단 지적이 일었습니다. [이재명 대통령/어제/국무회의 : "문제들을 최소화하기 위한 노력도 끊임없이 계속돼야 되겠고 또 그와 같은 문제를 해결하기 위한 시스템 정비도 사실 좀 필요합니다."] 결국, 경찰은 최근 3년간 접수된 실종 사건 전수 조사에 나섰습니다. 서울 9만 2천여 건, 경기 남부 7만 7천여 건 등, 전국적으로 30만 건이 넘는 사건들이 대상입니다. 앞으로 석 달간, 경찰서별로 전담팀을 구성해, 장 씨 사례처럼 '비대면'으로 종결한 사건을 중심으로, 신고부터 종결까지 모든 과정을 살펴본 뒤, 문제가 있다면 재수사하겠다는 방침입니다.관건은 이를 일일이 확인할 인력 투입이 가능할지 여부인데, 전국 261개 경찰서 중 실종 전담팀을 갖춘 곳은 절반이 조금 넘는 수준에 불과합니다. 그마저도 전담 수사 인력은 줄어들고 있습니다. [이윤호/동국대 경찰행정학과 명예교수 : "심각성, 긴급성을 중심으로 우선순위를 정하는데, 실종 사건은 그런 우선순위의 심각성이나 긴급성에서 밀렸다는 얘기가…."] 경찰은 한 명에 불과했던 야간 실종 수사 인력을 2명 이상으로 늘리는 등, 실종수사 체계도 재정비할 방침입니다. KBS 뉴스 이정은입니다. 영상편집:송화인/그래픽:김지훈■ 제보하기▷ 전화 : 02-781-1234, 4444▷ 이메일 : [email protected]▷ 카카오톡 : 'KBS제보' 검색, 채널 추가▷ 유튜브, 다음에서도 KBS뉴스를 구독해주세요!。    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.。

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Published on:05:08:41