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Denise Kühnert and other researchers from the Max Planck Institute in Germany extracted hepatitis B virus sequences from 137 early human samples located in western Eurasia and the Americas from about 400 to 10,500 years ago and analyzed their evolution.
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Probably because it is backed by stars and sea, astronomy can always stir up the mysterious romance of the universe. In the summer of 2021, a video on CCTV received 280,000 likes and became a hot search. The protagonists of the "cosmic romance" in the video are two college studen
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As we grow older, we always seem to lose something. Many people who move from remote villages to metropolitan areas always lament that since arriving in the city, they can rarely see the bright Milky Way. Due to various reasons, we all seem to have lost the opportunity to "apprec
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You would never imagine that plants have made so many efforts to prevent them from being eaten by other animals. Do you know what they are? I believe many friends are curious about a question, that is, plants are also living things. Since they are living things, they must They wi
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Recently, CBS broke a piece of shocking news: a photo that may be an "alien shiti". It is said that this photo is related to the original "Roswell Alien Incident".
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The droplets or deposits formed by liquid-liquid phase separation can help cells assemble functional structures to help them perform normal functions. However, currently little is known about the localization rules of its formation rate and the causes of its specificity (1).
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In the above-mentioned vision of high-tech warfare, lasers are mentioned many times. This is definitely not a bizarre myth. It not only plays a huge role in production, medicine, scientific experiments and other fields, but also greatly promotes the development of military techno
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Text | Science Wormhole Winter in the Arctic is very cold. The average temperature in January is between minus 40°C and 0°C, and some areas can reach minus 50°C in winter. In such a cold Arctic Circle, there are some people who have settled for generations. They are the Inuit.
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Before this, we all know that our country has the largest rare earth reserves in the world, about 44 million tons, followed by Mongolia with about 31 million tons, and Brazil with 2,200 tons. Thousands of tons of rare earths are called industrial gold.
Türkiye claims that it has discovered the world's largest rare earth resources, which can be used for thousands of years. What impact will it have on China?
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In recent years, driven by a series of pharmaceutical reforms, my country's innovative drugs, including oncology drugs, have developed rapidly. At the same time, China's oncology discipline has also made great progress in recent years, with a large number of academic leaders emer
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A new Tel Aviv University study proposes a new AIDS treatment that could be turned into a vaccine or a one-time treatment for HIV patients. The study looked at modifying type B white blood cells in patients so that they release anti-HIV antibodies in response to the virus.
Scientists propose potential AIDS treatment: HIV may be defeated with a single injection
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Shape memory polymers have broad application prospects in biomedical and mechanical engineering. However, most shape memory polymer programming processes require heating, such as water baths and oil baths. However, this environmental indirect heating method has limited heating ra
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Amorphous calcium carbonate (ACC) calcium supplement developed by Israeli biotech company Amorphical was tested in space and results show that it can improve muscle performance in zero gravity. , strengthen and build bones, provide body functions, and enhance immunity.
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In mid-to-late June, a professional monitoring found that Chinese horseshoe crabs were found all over the coastal tidal flats of the Hepu Dugong National Nature Reserve in Guangxi. The maximum density per unit quadrat was as high as 53.1 birds/100 square meters, ranking first in
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There are no identical creatures on the earth, and there are no identical individuals. Even identical twins will have such differences. However, scientists have concluded that there is only one ancestor of these various creatures living on the earth. Then the creatures on the ear
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Volcanoes are a common landform feature that give us the impression of danger, high temperature, and poison. Once we encounter a volcanic eruption at close range, our lives are likely to be in danger. This is relative to public perception, and is more based on the fact that the p
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Nowadays, the domestic liquor market is not only very large, but also very chaotic. If you are not careful, you will buy some inferior liquor with very low quality. Therefore, the difficulty of buying liquor has become a headache for many drinkers. When entering the supermarket,
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Seeing her mother-in-law taking her 5-year-old Youyou to learn literacy every day, intentionally or unintentionally, Yoyo's mother felt a little helpless, because she felt that the child's current literacy learning was a kind of "advanced learning". If it continued, the child wou
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Summer vacation is here again, and it’s time to test my skills. Mommies, what do you think? There are only three children in our family who live with my brother-in-law. Those two are left-behind children. Their parents are not around to live with grandma.
The baby said: Mom, please don’t hit me and don’t scold me... I thought it was very difficult.
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In order to allow children to experience life and enhance their social practice abilities.
Gansu Cross Century Haitang Kindergarten: "Home Alone, supermarket experience and movie watching" outing practice
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Cantonese-style morning tea is a must-experience for foreigners traveling to Guangdong. In the eyes of northerners, morning tea is just breakfast. It is just a very exquisite breakfast. The menu is small and expensive, but it is delicious enough. Cantonese-style morning tea has a
It was the first time for a northerner to have Cantonese morning tea. One person ordered 6 dishes. The waiter couldn't help but smiled after serving the dishes.
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Introduction: When cooking prawns, boil them directly in water and they will be "wasted". Let me teach you a trick. The shrimp meat will be tender and delicious, so fragrant! Hello everyone, I am a silly girl who cooks food. Food and beautiful scenery can only be lived up to in l
When cooking prawns, it’s best to avoid boiling them directly in water. Let me teach you a trick. The prawn meat will be tender and delicious. It’s so fragrant.
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