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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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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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The German Federal Ministry of Science and Technology wants to accelerate materials research and make it sustainable and relevant to industry. However, the success of technology leaps or market launches in government-funded projects depends largely on the choice of partners. A ne
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Researchers such as Stefano Piccolo from the University of Padua in Italy discovered that YAP/TAZ, a key factor in mechanical force signaling, plays a key role in cellular aging.
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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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The U.S. Department of Homeland Security released a report on U.S. legal immigration and adjustment of status for the first quarter of fiscal year 2022. A total of approximately 1,228,000 non-citizens became lawful permanent residents of the United States in the first quarter of
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**Recent 9 lottery drawings**. Recommendations for the front area: 07, 08, 17, 20, 22, 25, 26, 28, 30, 34.
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When designing a PLC system, the system solution should be determined first, and the next step is the design and selection of the PLC. When choosing a PLC, the main thing is to determine the manufacturer of the PLC and the specific model of the PLC. For system solutions, distribu
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