[quick news] on January 31, 2019, aspirin is not a magic drug, and there is a risk in taking it for a long time

Aspirin is not a magic drug, and there are risks in long-term use In recent years, the view that aspirin is a magic drug, which can prevent heart disease and even reduce the risk of cancer has become more and more popular Recently, the Journal of the American Medical Association pointed out that taking aspirin for a long time will increase the incidence of internal bleeding, and the side effects even exceed the prevention effect of cardiovascular disease This paper analyzes the results of 10 previous studies, involving 164000 people with an average age of 62 years The researchers compared aspirin users with those who did not take aspirin, and found that the incidence rate of stroke, heart disease and other diseases decreased, but the incidence of bleeding in brain, stomach and intestines also increased The article also points out that aspirin has no effect on the incidence rate of cancer Https://jamanetwork.com/journals/jama/article-abstract/2721178? Resultclick = 3 Estrogen generating enzyme in brain is closely related to personality and temperament A research team of Japan Institute of physical and chemical research found that the expression of estrogen generating enzyme aromatase in brain is related to personality through positron emission tomography (PET) analysis of brain image Pet is a method for quantitative and visual analysis of molecular behavior in vivo The team has developed a new pet probe that changes the inhibitors that bind to aromatase, confirming that aromatase can be analyzed in the brain The results showed that the higher the aromatase content in the amygdala, the stronger the aggression; the higher the aromatase content in the thalamus, the lower the coordination This suggests that there is a relationship between personality and the amount of aromatase in the brain Http://digitalpaper.stdaily.com/http_ Div = - 1 research shows that the mutation rate of human gene is slower than that of other apes Danish scientists sequenced the genes of chimpanzees, gorillas and chimpanzee families, and compared the results with similar studies of human New research shows that the annual mutation rate of human is about one third lower than that of other apes The results are important for understanding when humans and other apes "diverge" in evolution, the researchers said Using the mutation rates calculated in the study, the team proposed a new point in time for apes and humans to part ways They estimated that humans and chimpanzees separated in evolution about 6.6 million years ago; humans and chimpanzees separated about 15.9 million years ago But these estimates are not consistent with the fossil record Https:// "third hand" robot arm can command Panasonic Corporation of Japan to display the latest research results of its robot technology in Tokyo, including "third hand" robot arm, robot control technology, etc The mechanical arm is very useful, but it is a complex system The uncertainties such as parameter perturbation, external interference and unmodeled dynamics should be considered For different tasks, it is necessary to plan the trajectory of manipulator joint space in order to model successfully In the latest demonstration, engineers wore a special kind of sensor glasses, through which they used their eyes and commands to command the operation of the mechanical arm This mechanical arm is installed on the engineer, which seems to have another arm, so it is called "the third hand" mechanical arm Https://globalnews.ca/video/4888928/panasonic-unvails-robot-arm-prosthetic/the first quantum computer power supply in Russia came out Quantum computers can't use ordinary power supply, because this kind of computer may regard small changes in current performance as changes in processed information and give wrong results Russia's first quantum computer power supply has been developed and tested by Novosibirsk State University of technology So far, expensive imported power has been used in research related to the manufacture of Russian quantum computers The relevant person in charge said that the quality of the multi-channel power supply successfully manufactured by Russian engineers is no less than that of similar foreign products; from the perspective of national security, it is of great significance to manufacture the domestic quantum computer power supply http://sputniknews.cn/russia/201901231027440701/