Saturday, April 26, 2025

BIG Wrap

Machine learning for newbies

Research from the Cornell Ann S. Bowers College of Computing and Information Science explores how to help non-experts effectively, efficiently and ethically use machine-learning algorithms to better enable industries beyond the computing field to harness the power of artificial intelligence, Tech Xplore reports. "We don't know much about how nonexperts in machine learning come to learn algorithmic tools," said Swati Mishra, a PhD student in the field of information science. "The reason is that there's a hype that's developed...

Study analyses qualities of SARS-CoV-2 spike protein

A University of Kentucky College of Medicine study published in the Journal of Biological Chemistry provides foundational information about SARS-CoV-2's spike protein, Phys.org reports. The spike protein is found on the surface of SARS-CoV-2, the virus that causes COVID-19, and is responsible for its entry into host cells. Because of this function, it is the focus of most COVID-19 vaccines including the Pfizer/BioNTech and Moderna mRNA vaccines. "The spike protein represents one of the most important therapeutic targets for COVID-19,"...

The truth about the itsy bitsy teenie weenie bikini story that went viral

No, women are not required to wear bikinis to play beach volleyball at the Olympics. And the camera lingering on players' glutes as they make hand signals to teammates is not a problem for most players, CBC reports. "I have always felt like when you get somebody drawn in, however you get them into beach volleyball, they fall in love with the sport," said American April Ross, a three-time Olympian. "So, hopefully that happens also." Beach...

Researchers find new way to infect AI networks

Researchers at Cornell University have found that it is possible to hide malware code inside of AI neural networks, Tech Xplore reports. Zhi Wang, Chaoge Liu, and Xiang Cui have posted a paper describing their experiments with injecting code into neural networks on the arXiv preprint server. As computer technology grows ever more complex, so do attempts by criminals to break into machines running new technology for their own purposes, such as destroying data or encrypting it...

Is a cure for HIV in sight?

There may be a global focus on COVID-19, but it's a good time to ask if a cure is finally in sight for HIV. Although many antiretroviral medications have been approved over the years, new strategies are under development that theoretically could deliver a knockout blow to HIV, Medical Xpress reports. Medical investigators are exploring the possibility of gene therapy as a potential HIV cure. Other teams are examining CAR T-cell therapy, a form of...

NASA telescope spots supernova’s ‘fizzled’ gamma-ray burst

NASA's Fermi Gamma-ray Space Telescope detected a pulse of high-energy radiation that had been racing toward Earth for nearly half the present age of the universe, reports Phys.org. Lasting only about a second, it turned out to be one for the record books – the shortest gamma-ray burst (GRB) caused by the death of a massive star ever seen. GRBs are the most powerful events in the universe, detectable across billions of light-years. Astronomers classify...

SpaceX over the moon about selection for Europa voyage

NASA selected SpaceX to launch a planned voyage to Jupiter's icy moon Europa, reports Phys.org. The Europa Clipper mission is scheduled to launch in October 2024 on a Falcon Heavy rocket from the Kennedy Space Center in Florida. The contract is worth $178 million. The mission was previously supposed to take off on NASA's own Space Launch System (SLS) rocket, which has been plagued by delays and cost overruns. Critics have called the SLS a...

MIT researchers publish findings on sudden stratospheric warming

Weather is a tricky science, particularly at very high altitudes, with the mix of plasma and neutral particles. In sudden stratospheric warmings (SSWs) – large meteorological disturbances related to the polar vortex in which the polar stratosphere temperature increases as it is affected by the winds around the pole – the polar vortex is weakened. SSWs also have profound atmospheric effects at great distances, causing changes in the hemisphere opposite from the location of...

New Delhi smog tower has fans and critics

An attempt at purifying New Delhi's notoriously polluted air will see 40 giant fans push out filtered air in the heart of the Indian capital's posh downtown shopping district, reports Tech Xplore. But the $2-million "smog tower" has no shortage of doubters. The 25-metre-high tower is meant to filter air over a one-square-kilometer radius around the swanky shops and cafes in Connaught Place. "Smog is an annual phenomenon because of particulate matter. So we are (trying)...

Widespread web outage hits major sites

Many popular websites fell offline today in a widespread outage of service, reports the BBC. Visitors attempting to reach some sites received DNS errors, meaning their requests could not reach the websites. Affected services included Airbnb, UPS, HSBC bank, British Airways, and the PlayStation network used for online games. Internet outage monitoring platform DownDetector reported thousands of problems from its users across dozens of platforms. As some websites began to appear again for users in Europe and the...