gaisndm Hawkshaw
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Deng Hongkui's team of Peking University uses chemical reprogramming to completely reverse the "developmental clock" of human cells. | Global scientific news
Cell biology? Chemical reprogramming reverses the "developmental clock" of human cells Cell reprogramming can transform one cell into another type of cell, such as using oocyte cytoplasm or transcription factors, to reprogram somatic cells into pluripotent stem cells. In addition, exposure to an environment containing some small molecules (chemical stimulation) can also change the fate of cells, but it is more difficult to achieve in human cells. In a new study published in Nature, a team led by Deng Hongkui, a professor at Peking University, induced human cells into an intermediate state of plasticity, realizing the chemical reprogramming of human body cells.
By gaisndm Hawkshaw2 years ago in Earth
This may be the ugliest robot you've ever seen, but it can deform at will like venom, be cut off and be reborn.
There is an alien life form that can be parasitic on humans and gives the host a powerful ability to deform and stretch at will like a fluid and enter a narrow space to carry out acts of destruction. It is venom.
By gaisndm Hawkshaw2 years ago in Earth
Discovery of the largest comet so far, about the size of Tianjin | Global scientific news
? Astronomy? The largest known long-period comet On January 8 this year, a team of researchers at the University of California, Los Angeles (UCLA) used the Hubble Space Telescope to identify comet Cmax 2014 UN??? Five pictures were taken. Combined with radio data from the Atacama large millimeter / submillimeter wave array (ALMA), the team confirmed that the effective diameter of the comet's nucleus is 119 ±15km, making it the largest known long-period comet. The results are published in the Astrophysical Journal KuaiBao. Tianjin has an area of 11966 square kilometers and an equivalent diameter of about 120km. The diameter of the comet is about the same as that of Tianjin.
By gaisndm Hawkshaw2 years ago in Earth
13 days, make skin cells 30 years younger and restore their ability to produce collagen | Global scientific news
? Regenerative medicine? 13 days, make the skin 30 years younger. In 2007, Shinya Yamanaka first used cell reprogramming technology to transform normal cells with specific functions into pluripotent stem cells (iPSC), and won the Nobel Prize for this, but normal cells lose their specific function in the process. Recently, a study published in eLife builds on this work by stopping partial reprogramming during stem cell redifferentiation, preserving the specific function of skin cells and "rejuvenating" skin cells.
By gaisndm Hawkshaw2 years ago in Earth
In 17 days, I photographed the International Space Station 400 kilometers away with 600 lines of code.
Tu Yuan Zhu Yijing & Xu Chengcheng, authorized However, at present, several common methods for shooting celestial bodies are not suitable for taking higher-precision photos of the space station.
By gaisndm Hawkshaw2 years ago in Earth
Working at sunrise and resting at sunset
, these life experiences accumulated by our ancestors have been naturally integrated into our bodies. Like many creatures, our bodies have evolved a circadian rhythm that coincides with the alternation of day and night, or simply, we call it the biological clock.
By gaisndm Hawkshaw2 years ago in Earth
How did a person whose face was destroyed by sulfuric acid win a doctorate from a prestigious university and win a "genius award"?
Is this some kind of mystical gathering center? There is indeed a group of "strange" people living in the basement of this university. they can work in the dark in the basement and form a cohesive group. They are actually a group of blind students.
By gaisndm Hawkshaw2 years ago in Earth
The skin breaks at the touch, and there are wounds everywhere: in order to cure the disease, they are forced to cover their skin with viruses.
"will you dream of living a day without pain?" "even when I sleep, I can feel the pain. The pain seems to be somewhere in my mind, and I always knew it was there. "
By gaisndm Hawkshaw2 years ago in Earth
The complete list of the top 500 academic journals on Wechat platform was released in the third quarter of 2021 | lead research × Impact Science
Thesis guide; conference lecture preview, live broadcast and record; English for science and technology learning; scientific research recruitment; career guidance.
By gaisndm Hawkshaw2 years ago in Earth