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Nyheder2022juni11

Make America Remember Again
"There were officers on the ground," Caroline Edwards testified Thursday evening, during the first public hearing of the House Select Committee investigating the events of the January 6 insurrection . The Capitol Police officer was describing the violence she observed as she attempted to defend the building from the mob. She described her fellow officers, outnumbered and outmatched: "They were bl
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Weekend reads: 'Foul play' among protective scholars; how to increase rigor; science and a 'culture of misinformation'
Would you consider a donation to support Weekend Reads, and our daily work? Thanks in advance. The week at Retraction Watch featured: A stolen manuscript, part two: The plagiarist begs for forgiveness as another group plagiarizes the same work A paper claimed to describe 'the first potent and specific anti-COVID-19 drug.' Now it's retracted. Medical school dean … Continue reading
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Photoredox catalytic radical fluorosulfonylation of olefins enabled by a bench-stable redox-active fluorosulfonyl radical precursor
Nature Communications, Published online: 11 June 2022; doi:10.1038/s41467-022-31089-7 Sulfonyl fluorides are compounds with potential application in chemical biology and drug discovery, but their preparation can be challenging. Here, the authors present a type of bench-stable fluorosulfonyl radical reagents that enable radical fluorosulfonylation reactions via photoredox catalysis.
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The cryptic seismic potential of the Pichilemu blind fault in Chile revealed by off-fault geomorphology
Nature Communications, Published online: 11 June 2022; doi:10.1038/s41467-022-30754-1 Cryptic faults concern earthquake scientists, since they pose a hidden seismic potential which is hard to identify. To address this, the authors here study off-fault deformed geomorphic markers such as marine terraces using high-resolution LiDAR topography, optical dating of sediments and space geodetic observat
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This Week's Awesome Tech Stories From Around the Web (Through June 11)
COMPUTING Photonic Chip Performs Image Recognition at the Speed of Light Charles Q. Choi | IEEE Spectrum "In a new study, researchers have developed a photonic deep neural network that can directly analyze images without the need for a clock, sensor, or large memory modules. It can classify an image in less than 570 picoseconds, which is comparable with a single clock cycle in state-of-the-art mi
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UK Military Wants to Install Quantum Computers in Tanks for Some Reason
Small Package The UK Ministry of Defense just bought a quantum computer to investigate if the technology could one day make tanks smart, New Scientist reports . Richard Murray, the CEO of quantum computing startup Orca, announced the deal this week. According to Murray, part of the reason Orca's product got the MoD's attention is because some of their products can fit on a regular computer shelf
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Scientists Discover "Superworms" That Can Survive on Eating Just Styrofoam
Plastic Food An international group of researchers have discovered that "superworms," a species of worms that can be at least five times the size of mealworms and wax worms, are pretty damn good at digesting Styrofoam. In other words, these worms could help us break down plastic — wriggly bioreactors that could greatly cut down the time it takes for plastic to biodegrade. Guts of Steel In a new s
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Ironic! Norway is Building a Massive Wind Farm to Boost Oil Production
Isn't It Ironic In a huge twist of irony, Norway is building the world's largest wind farm — to power offshore oil and gas fields. If you're raising your eyebrows at this point, we are too. The project called Hywind Tampen is set to be constructed and operated by Norwegian energy giant Equinor, who also happens to be drilling for oil and gas in the area. It's a rather confounding development for
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Best 6×9 Speakers of 2022
We all know that your car is the best place to listen to music, so if you want that really good audio, consider upgrading with some bumping 6×9 speakers. They turn your car into a supersized mobile boombox, with high-fidelity speakers that serve up tuneage like it was meant to be heard. High-power 6×9 speakers fill out the middle and treble range with treble frequencies so hot they'll fry an egg
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Did Freddy Find a Mine He Can't Rescue? | Gold Rush: Freddy Dodge's Mine Rescue
Stream Gold Rush: Freddy Dodge's Mine Rescue on discovery+ ▶︎ https://www.discoveryplus.com/show/gold-rush-freddy-dodges-mine-rescue #GoldRush #discovery #MineRescue Subscribe to Discovery: http://bit.ly/SubscribeDiscovery Follow Us on TikTok: https://www.tiktok.com/@Discovery We're on Instagram! https://instagram.com/Discovery Join Us on Facebook: https://www.facebook.com/Discovery Follow Us on
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Transition-metal-free synthesis of pyrimidines from lignin β-O-4 segments via a one-pot multi-component reaction
Nature Communications, Published online: 11 June 2022; doi:10.1038/s41467-022-30815-5 Lignin depolymerization to make heterocyclic aromatic compounds is of great importance to expanding the product portfolio derived from biomass, but it is also particularly challenging. In this work, the authors report pyrimidine synthesis from lignin β-O-4 model compounds via a one-pot multicomponent cascade rea
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Structural basis of resistance to herbicides that target acetohydroxyacid synthase
Nature Communications, Published online: 11 June 2022; doi:10.1038/s41467-022-31023-x Acetohydroxyacid synthase (AHAS) is the target of more than 50 commercial herbicides, with many site-of-action resistance isolates identified in weeds. Here, the authors report the structural and kinetic characterizations to explain the effect AHAS mutations have on herbicide potency.
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Macromolecule conformational shaping for extreme mechanical programming of polymorphic hydrogel fibers
Nature Communications, Published online: 11 June 2022; doi:10.1038/s41467-022-31047-3 Tuning of mechanical properties of single composition hydrogel materials and application in integrated devices remains challenging. Here, the authors introduce a macromolecule conformational shaping strategy that enables mechanical programming of polymorphic hydrogel fibre-based devices.
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Modest volcanic SO2 emissions from the Indonesian archipelago
Nature Communications, Published online: 11 June 2022; doi:10.1038/s41467-022-31043-7 Indonesia is the country with the most active volcanoes, several of which are renowned for climate-changing eruptions. Here the authors show a rather moderate sulfur emissions budget and reinforce the idea that sulfur-rich eruptions reflect long-term accumulation of volatiles in the reservoirs.
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The Most Important Study in the Abortion Debate
The demographer Diana Greene Foster was in Orlando last month, preparing for the end of Roe v. Wade , when Politico published a leaked draft of a majority Supreme Court opinion striking down the landmark ruling. The opinion, written by Justice Samuel Alito, would revoke the constitutional right to abortion and thus give states the ability to ban the medical procedure. Foster, the director of the
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The One Key Word Biden Needs to Invoke on Ukraine
In World War II, Franklin D. Roosevelt rallied what he dubbed the "United Nations," among them Joseph Stalin's Soviet Union, to keep the Axis powers from eliminating whole countries across Europe and Asia. After the Cold War, George H. W. Bush likewise assembled a 35-nation coalition to beat back Iraq's invasion of Kuwait. America's partners lined up behind a principle they all had a stake in def
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'I'm, Like, This Close to Snapping'
Four years and four months ago, a high-school student delivered a speech at a rally outside the Broward County Courthouse in Fort Lauderdale, Florida. Three days earlier, a gunman had killed 17 of X González's classmates and teachers at Marjory Stoneman Douglas High School in Parkland with an AR-15-style rifle . "We are going to be the last mass shooting," González told the assembled crowd and ca
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A 1,200-mile road-trip and no baby formula to be found. This is a nightmare | Anna Gazmarian
Expired products, cow milk, homemade formula – desperate parents are trying anything and everything to keep our babies fed I heard warnings about the formula shortage shortly after the mask mandate lifted in my town in North Carolina. My family was thrilled that life appeared to be going back to a semblance of normalcy, that my eight-month-old daughter could finally see people's faces in public,
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Orgasm gap: how Hollywood and science neglected female pleasure
Emma Thompson is right – more women are missing out on orgasms. Why? Hollywood sex scenes tend to follow a predictable formula: hot, passionate and rarely anything short of euphoric. So the basis of Emma Thompson's new film, Good Luck To You, Leo Grande , in which she plays a widowed teacher who hires a male escort in the hope of having her first orgasm late in life, is seen as truly boundary-pus
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Animal magic: why intelligence isn't just for humans
Meet the footballing bees, optimistic pigs and alien-like octopuses that are shaking up how we think about minds How do you spot an optimistic pig? This isn't the setup for a punchline; the question is genuine, and in the answer lies much that is revealing about our attitudes to other minds – to minds, that is, that are not human. If the notion of an optimistic (or for that matter a pessimistic)
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Enhancing bioreactor arrays for automated measurements and reactive control with ReacSight
Nature Communications, Published online: 11 June 2022; doi:10.1038/s41467-022-31033-9 Small-scale bioreactors are increasingly used in quantitative biology. Here, the authors report ReacSight, a software solution to connect reactor arrays with sensitive measurement devices using low-cost pipetting robots and provide applications leveraging optogenetic control in yeast.
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Photon-free (s)CMOS camera characterization for artifact reduction in high- and super-resolution microscopy
Nature Communications, Published online: 11 June 2022; doi:10.1038/s41467-022-30907-2 Pixel-to-pixel variations in sCMOS cameras lead to image artifacts in widefield fluorescence microscopy, and algorithmic corrections require thorough camera characterization. Here, the authors present an open source automated pipeline for camera characterization based solely on thermally generated signal.
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A highly conserved core bacterial microbiota with nitrogen-fixation capacity inhabits the xylem sap in maize plants
Nature Communications, Published online: 11 June 2022; doi:10.1038/s41467-022-31113-w The plant xylem microbiota remains understudied. Here, the authors characterise the xylem microbiota in maize plants finding that some bacteria carried N fixing genes. By using synthetic communities the authors confirm that xylem inhabiting and N fixing bacteria provide the host plant with N.
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Research reveals the science behind this plant's blue berries
On a beautiful fall day in 2019, Miranda Sinnott-Armstrong was walking down Pearl Street in Boulder, Colorado when something caught her eye: a small, particularly shiny blue fruit, on a shrub known as Lantana strigocamara. While its tiny clusters of pink, yellow and orange flowers and blue berries commonly adorn the pedestrian mall in spring, city workers were ripping these common Lantanas out to
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Research reveals the science behind this plant's blue berries
On a beautiful fall day in 2019, Miranda Sinnott-Armstrong was walking down Pearl Street in Boulder, Colorado when something caught her eye: a small, particularly shiny blue fruit, on a shrub known as Lantana strigocamara. While its tiny clusters of pink, yellow and orange flowers and blue berries commonly adorn the pedestrian mall in spring, city workers were ripping these common Lantanas out to
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IgG antibodies in breast milk help shape infants' gut bacteria and immunity
Researchers have known for some time that maternal breast milk provides critical nutrients for newborns, and antibodies from mothers vaccinated against a specific disease-causing bacterium or virus can be transferred via breast milk to babies. Now a new preclinical study shows that one specific set of antibodies that is induced naturally by gut beneficial bacteria can be transferred from mothers t
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