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Frogs Without Legs Regrow Leglike Limbs In New Experiment

An anonymous reader quotes a report from The New York Times: African clawed frogs are masters of putting themselves back together, handily regenerating lost tails and hind limbs, when they are tadpoles. But these powers dim with maturity. Wait for an adult frog to regrow a lopped-off limb and you'll see only a tapered spike, more like a talon than a leg. Now, a group of scientists have found a way to harness the adult frog's own cells to regrow an imperfect but functional limb. The researcher...

'Burning' Hydrogen Plasma In the World's Largest Laser Sets Fusion Records

The secret behind a record-breaking nuclear fusion experiment that spit out 10 quadrillion watts of power in a split second has been revealed: a "self-heating" -- or "burning" -- plasma of neutron-heavy hydrogen inside the fuel capsule used in the experiment, according to researchers. Live Science reports: Last year, scientists at the Lawrence Livermore National Laboratory in Northern California announced the record release of 1.3 megajoules of energy for 100 trillionths of a second at the Na...

Covid-19 Infection Can Reactivate the Latent Retroviruses In Human DNA

He Who Has No Name writes: In a synopsis posted Monday, John Hewitt at Phys.org points out some fairly unsettling implications of an ugly trick by Covid-19 (more formally, SARS-CoV-2) -- it wakes up latent viruses that we are born with in our DNA. A quick version for those not familiar with virology: retroviruses are a subclass of viruses that leave copies of their RNA in the host cell's DNA as part of their replication process, the reverse of the way most viruses replicate (that's where the ...

Washington State Shuts Down 'Sold By Amazon' Program Nationwide

An anonymous reader quotes a report from The Seattle Times: Amazon is shutting down its "Sold by Amazon" program after an investigation from Washington Attorney General Bob Ferguson found it was anticompetitive and violated antitrust laws. The company engaged in unlawful price fixing and unreasonably restrained competition in order to maximize its own profits, according to the lawsuit and consent decree filed Wednesday in King County Superior Court. As a result of the investigation, Amazon wi...

Giving Cash to Low-Income Mothers Linked to Increased Brain Activity in Their Babies, Study Suggests

New research suggests giving extra cash to low-income mothers can change their infants' brain development. Time reports: Brain measurements at age 1 showed faster activity in key brain regions in infants whose low-income families received $300-plus monthly for a year, compared with those who got $20 each month, U.S. researchers reported Monday. The same type of brain activity has been linked in older children to learning skills and other development, although it's unclear whether the differen...

Government Demands To Remove Twitter Content Hit Record High

Twitter revealed on Tuesday that governments' requests for content to be removed from the platform hit a record high in the first six months of 2021. The Hill reports: Governments made 43,387 legal demands for content to be pulled down from 196,878 accounts between January and the end of June. Twitter's latest transparency report showed that 95 percent of the requests came from Japan, Russia, Turkey, India and South Korea. The platform "withheld" access to content or required accounts to take...

Boom Supersonic Picks North Carolina To Build and Test Ultra-Fast Planes

Boom Supersonic, which is developing ultra-fast airplanes it believes will lead to the return of commercial supersonic flights, has picked Greensboro, N.C., to build and test those planes. CNBC reports: The Greensboro-based plant, which is expected to employ 1,250 workers by the end of the decade, is the latest example of a new aviation manufacturing facility being built in the region. In the last 11 years, Boeing and Airbus have established new final assembly plants in North Charleston, S.C....

Amazon Ends Widely Mocked Scheme That Turned Workers Into Twitter 'Ambassadors'

An anonymous reader quotes a report from Ars Technica: Amazon has killed a program under which it paid warehouse employees to say nice things about the company on social media. "Amazon quietly shut down and removed all traces of the influence campaign at the end of last year, people with direct knowledge of the decision told the Financial Times," FT reported today. FT noted that the social media program suffered from "poor reach and embarrassing backfires." Amazon began paying workers to twee...

YouTube Gaming Boss Leaving To Join Crypto Company

YouTube Gaming's top boss, Ryan Wyatt, is leaving the company to join the cryptocurrency company Polygon Studios. Wyatt is expected to depart YouTube at the end of February. GameSpot reports: Wyatt, a former higher-up at Major League Gaming, joined Google in 2014 and has been the global head of gaming at the company since then. "I will miss YouTube dearly, but it is time for me to pursue other endeavors in life and where my passions are taking me," Wyatt said. "I am fascinated by blockchain a...

Valve Will Start Selling the Steam Deck Next Month

It's official: Valve's Steam Deck gaming portable will go on sale starting February 25th. The Verge reports: According to the company's blog, customers who have reservations will get an email on that day and have three days to place an order. Valve also says that it'll release new batches on a weekly basis, so if you've got a reservation, March will be the time to keep an eye on your email. Here's some more info from Valve's announcement: "We will start sending invites shortly after 10:00 am ...

North Korean Internet Downed By Suspected Cyber Attacks

An anonymous reader quotes a report from Reuters: North Korea's internet appears to have been hit by a second wave of outages in as many weeks, possibly caused by a distributed denial-of-service (DDoS) attack, researchers said on Wednesday. The latest incident took place for about six hours on Wednesday morning local time, and came a day after North Korea conducted its fifth missile test this month. Junade Ali, a cybersecurity researcher in Britain who monitors a range of different North Kore...

The Rise of the Crypto Mayors

This new political breed accepts paychecks in Bitcoin. The mayors also want to use buzzy new tech like NFTs to raise money for public projects. From a report: The ballooning popularity of Bitcoin and other digital currencies has given rise to a strange new political breed: the crypto mayor. Eric Adams, New York's new mayor, accepted his first paycheck in Bitcoin and another cryptocurrency, Ether. Francis Suarez, Miami's mayor, headlines crypto conferences. Now even mayors of smaller towns are...

Doctors Find 'Antibody Signature' for Patients Most at Risk of Developing Long Covid

Doctors have discovered an "antibody signature" that can help identify patients most at risk of developing long Covid, a condition where debilitating symptoms of the disease can persist for many months. From a report: Researchers at University hospital Zurich analysed blood from Covid patients and found that low levels of certain antibodies were more common in those who developed long Covid than in patients who swiftly recovered. When combined with the patient's age, details of their Covid sy...

Researchers Build AI That Builds AI

By using hypernetworks, researchers can now preemptively fine-tune artificial neural networks, saving some of the time and expense of training. From a report: Artificial intelligence is largely a numbers game. When deep neural networks, a form of AI that learns to discern patterns in data, began surpassing traditional algorithms 10 years ago, it was because we finally had enough data and processing power to make full use of them. Today's neural networks are even hungrier for data and power. T...

ID CEO Backtracks on Claims Company Doesn't Use Powerful Facial Recognition Tech

Identity verification company ID.me uses a type of powerful facial recognition that searches for individuals within mass databases of photos, CEO Blake Hall explained in a LinkedIn post on Wednesday. From a report: The post follows a news release from the company last week stating directly that: "Our 1:1 face match is comparable to taking a selfie to unlock a smartphone. ID.me does not use 1:many facial recognition, which is more complex and problematic." Hall's post on Wednesday confirms tha...
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