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We stand on the shoulders of Yuri Gagarin : UK astronaut hails cosmonaut s historic role - Science & Space

All news ‘We stand on the shoulders of Yuri Gagarin’: UK astronaut hails cosmonaut’s historic role According to Helen Sharman, wherever people go in space, their achievements are based on what Yuri Gagarin accomplished on April 12, 1961 Helen Sharman© Albert Pushkarev/TASS LONDON, April 9. /TASS/. Technology has advanced exponentially over the past 60 years, but whatever part of the Universe people will travel to, their achievements will be based on what Yuri Gagarin (1934-1968) accomplished on April 12, 1961, Helen Sharman, who was the first British citizen to go into space in 1991, told TASS. Yuri Gagarin s spaceflight was an amazing achievement, sixty years ago. The world was a very different place in 1961. Technology in particular has advanced so quickly that it is easy to forget what it was like then for the astronauts, engineers and designers, she noted.

Rare 4-stranded DNA has been observed in action for the first time -- Science & Technology -- Sott net

© Thomas Splettstoesser/Wikimedia Commons Reconstruction of human telomere DNA quadruplex.Two thin strands wound together in a spiraling helix: This is the iconic shape of a DNA molecule. But sometimes, DNA can form a rare quadruple-helix, and this odd structure may play a role in diseases like cancer. Not much is known about these four-stranded , known as G-quadruplexes but now, scientists have developed a new way to detect these odd molecules and observe how they behave in living cells. In a new study, published Jan. 8 in the journal Nature Communications, the team described how certain proteins cause the G-quadruplex to unravel; in the future, their work could lead to new drugs that grab hold of quadruple-helix DNA and disrupt its activity. Drugs could intervene, for instance, when the odd DNA contributes to cancerous tumor growth.

Rare 4-Stranded DNA Has Been Observed in Action For The First Time

NICOLETTA LANESE, LIVE SCIENCE 12 JANUARY 2021 Two thin strands wound together in a spiraling helix: This is the iconic shape of a DNA molecule. But sometimes, DNA can form a rare quadruple-helix, and this odd structure may play a role in diseases like cancer.    Not much is known about these four-stranded DNA, known as G-quadruplexes but now, scientists have developed a new way to detect these odd molecules and observe how they behave in living cells. In a new study, published January 8 in the journal  Nature Communications, the team described how certain proteins cause the G-quadruplex to unravel; in the future, their work could lead to new drugs that grab hold of quadruple-helix DNA and disrupt its activity.

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