[quick news] a large global survey on January 19, 2020 reveals the work and life pressure of scientists

A large global survey reveals the work life stress of scientists A survey of more than 4000 scientists depicts a bad picture of their work culture, indicating that highly competitive and hostile environments are damaging the quality of research Most researchers say they are proud of their research institutions and enthusiastic about their work, but also talk about the huge personal losses caused by their environment Many admit that stress and working hours "cross the border," with two-thirds saying they work more than 40 hours a week And the researchers say the situation is deteriorating, and that job stability and autonomous, flexible and creative work cannot offset the negative effects Less than 30% of respondents believe that research careers are secure In the coming months, the Wellcome foundation will hold a series of meetings at UK universities to discuss the issues raised in the survey A summit will be held in March this year to draw up a plan of action Http://news.scienceet.cn/htmlnews/2020/1/434931.shtm Stanford built a pigeon robot The researchers of Stanford built a semi biological pigeon robot named pigeon BOT, which was originally hidden in feathers And put forward some new research results, accurately understand how to maintain and control the flight of birds by changing the shape of wings By studying this semi biological pigeon robot, they found two secrets about feathers when birds are flying: when wings change, feathers will be passively redistributed due to the compliance of elastic connective tissue at the base of feathers; in order to prevent the gap between feathers from being too large, there are hook like microstructures between adjacent feathers Alireza ramezani, a professor at Northeast University, said: 'this study is impressive This marks the future of UAV design, which may be far away from fixed wing or rotary wing technology Https://www.qbitai.com/2020/01/10950.html clinical breakthrough of brain computer interface of Zhejiang University: the first high paraplegic patient in China uses mind control robot arm recently, Zhang Jianmin team of the second hospital of Zhejiang University implanted Utah into the brain of a high paraplegic volunteer The array electrode can control the three-dimensional movement of the robot to complete a series of important functions such as eating, drinking and handshaking Neurons in the motor cortex of the brain are divided into six layers The electrodes need to be implanted into the fifth layer Traditional artificial implantation can not achieve the best accuracy The team used a 0.1mm surgical robot to send two microelectrode arrays to a given position with an error of only 0.5mm This is also the world's first successful use of robot assisted electrode implantation surgery The success of this research indicates that brain computer interface technology in China has become one of the international advanced ranks in clinical transformation application research Https://www.qbitai.com/2020/01/10940.html Meimei: research shows that surgical removal of the entire tumor may prolong the life of brain cancer patients According to a new study, surgical removal of the entire tumor may prolong the life of a rare and fatal brain cancer patient, which is known as "brain stem high-grade glioma" "Understanding what these procedures can do can help neurosurgeons, neurooncologists, and patients better understand the results of these procedures, so that we can further provide better standardized care for patients with these rare and dangerous tumors," Dr Debraj Mukherjee, who led the study, said in a press release Mukherjee is an assistant professor of Neurosurgery at Johns Hopkins University Http://www.cankaoxiaoxi.com/science/20200117/2400333.shtml neural stem cell regeneration mechanism reveals that a research team of Japan Institute of physical and chemical research has found that when mammalian brain is formed, neural stem cells can regenerate "shape" flexibly The discovery of this mechanism reveals the unknown behavior of cells This time, the team used a multi photon microscope to clearly capture the shape changes of neural stem cells in mouse fetal brain tissue, and found that neural stem cells can flexibly regenerate columnar shape The team also found that the emergence of this new stem cell layer led to the formation of a brain with large folds like a human The results were published online in the recent issue of natural cell biology http://digitalpaper.stdaily.com/http_www.kjrb.com/kjrb/html/2020-01/17/content_438989.htm?div=-1