Quanta’s In Theory video series returns with an exploration of a mysterious mathematical pattern found throughout nature.
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Alexey Kochetov, director of the Siberian Branch of the Russian Academy of Sciences (RAS) Institute of Cytology and Genetics in Novosibirsk, welcomed the research programme, noting that genetics in Russia has been “chronically underfinanced” for decades. Funding for science plummeted in the 1990s following the break-up of the Soviet Union, and Russia still lags behind other major powers: in 2017, it spent 1.11% of its gross domestic product on research, compared with 2.13% in China and 2.79% in the United States.
A US$1.7-billion programme aims to develop 30 gene-edited plant and animal varieties in the next decade. A US$1.7-billion programme aims to develop 30 gene-edited plant and animal varieties in the next decade.
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Lawrence Livermore National Laboratory (LLNL) scientists in collaboration with University of Nevada Las Vegas (UNLV) have discovered a previously unknown pressure induced phase transition for TATB that can help predict detonation performance and safety of the explosive. The research appears in the May 13 online edition of the Applied Physics Letters and it is highlighted as a cover and featured article.
1,3,5-Triamino-2,4,6- trinitrobenzene (TATB), the industry standard for an insensitive high explosive, stands out as the optimum choice when safety (insensitivity) is of utmost importance. Among similar materials with comparable explosive energy release, TATB is remarkably difficult to shock-initiate and has a low friction sensitivity. The causes of this unusual behavior are hidden in the high-pressure structural evolution of TATB. Supercomputer simulations of explosives detonating, running on the world’s most powerful machines at LLNL, depend on knowing the exact locations of the atoms in the crystal structure of an explosive. Accurate knowledge of atomic arrangement under pressure is the cornerstone for predicting the detonation performance and safety of an explosive.
The team performed experiments utilizing a diamond anvil cell, which compressed TATB single crystals to a pressure of more than 25 GPa (250,000 times atmospheric pressure). According to all previous experimental and theoretical studies, it was believed that the atomic arrangement in the crystal structure of TATB remains the same under pressure. The project team challenged the consensus in the field aiming to clarify the high-pressure structural behaviour of TATB.
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Wondering if your kid is dealing with an ear infection? Soon, according to researchers at the University of Washington, there’ll be an app for that. They claim to have created a simple test that uses a smartphone and folded up paper to detect one of the telltale signs of infection—fluid in the ears—with about the same or greater accuracy as a doctor.
Ear infections are one of the first health problems people tend to experience. By the age of three, most everyone has had at least one ear infection. These infections often cause fluid build-up in the ear, as can another condition called otitis media with effusion (OME). But though most infections or cases of OME go away on their own, too much or chronic fluid can cause pain or even severe complications like hearing loss.
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We’re offering a few discounted tickets to our conference, Ending Age-Related Diseases 2019, in order to celebrate the 174th birthday of Élie Metchnikoff, the father of gerontology. We’re selling these tickets at the previous early bird price of $350 instead of the current $400!
This special, lower-price offer is valid from May 15, Noon EDT to May 17, Noon EDT, so this is the ideal time to guarantee your place at this exciting event. Prices will also be rising to $500 from June 10th onwards as we draw closer to the conference.
You can get your discounted ticket by visiting our Eventbrite page and using the discount code Metchnikoff.
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