Posted by EditorDavid from Slashdot
From the moving-mountains department: "Seismologist Deborah Kilb was wading through California earthquake records from the past four decades when she noticed something odd," reports CNN, "a series of deep earthquakes that had occurred under the Sierra Nevada at a depth where Earth's crust would typically be too hot and high pressure for seismic activity..."
Kilb flagged the data to Vera Schulte-Pelkum, a research scientist at the Cooperative Institute for Research in Environmental Sciences and an associate research professor of geological sciences at the University of Colorado Boulder... Using the newfound data, the researchers imaged the Sierra Nevada through a technique known as receiver function analysis, which uses seismic waves to map Earth's internal structure. The scientists found that in the central region of the mountain range, Earth's crust is currently peeling away, a process scientifically known as lithospheric foundering. Kilb and Schulte-Pelkum reported the findings in December in the journal Geophysical Research Letters.
The hypothesis lined up with previous speculation that the area had undergone lithospheric foundering, which happens when Earth's outermost layer sinks into the lower layer of the mantle. Now, the study authors believe that the process is ongoing and is currently progressing to the north of the mountain range, according to the study... What's happening under the Sierra Nevada could offer rare insight into how the continents formed, Schulte-Pelkum said. The finding could also help scientists identify more areas where this process is happening as well as provide a better understanding of earthquakes and how our planet operates, she added...
< This article continues on their website >
Posted by EditorDavid from Slashdot
From the RoboDoc department: CNN looks at "one field that's really benefitting" from the use of AI: "the discovery of new medicines".
The founder/CEO of London-based LabGenius says their automated robotic system can assemble "thousands of different DNA constructs, each of which encodes a completely unique therapeutic molecule that we'll then test in the lab. This is something that historically would've had to have been done by hand." In short, CNN says, their system lets them "design and conduct experiments, and learn from them in a circular process that creates molecular antibodies at a rate far faster than a human researcher."
While many cancer treatments have debilitating side effects, CNN notes that LabGenius "reengineers therapeutic molecules so they can selectively target just the diseased cells."
But more importantly, their founder says they've now discovered "completely novel molecules with over 400x improvement in [cell] killing selectivity."
A senior lecturer at Imperial College London tells CNN that LabGenius seems to have created an efficient process with seamless connections, identifying a series of antibodies that look like they can target cancer cells very selectively "that's as good as any results I've ever seen for this." (Although the final proof will be what happens when they test them on patients..) "And that's the next step for Labgenius," says CNN. "They aim to have their first therapeutics entering clinics in 2027."
Finally, CNN asks, if it succeeds is their potential beyond cancer treatment? "If you take one step further," says the company's CEO/founder, "you could think about knocking out senescent cells or aging cells as a way to treat the underlying cause of aging."
Posted by EditorDavid from Slashdot
From the Martian-chronicles department: Billions of years ago Mars "had a warm, habitable climate with liquid water in lakes and flowing rivers," writes Ars Technica.
But "In order for Mars to be warm enough to host liquid water, there must have been a lot of carbon dioxide in the atmosphere," says Benjamin Tutolo, a researcher at the University of Calgary. "The question we've been asking for at least 30 years was where the record of all this carbon is."
Tutolo led a new study of rock samples collected by the Curiosity rover that might have answered this question...
Curiosity rover was called Mars Science Laboratory for a reason. It went to the red planet fitted with a suite of instruments, some of which even the newer Perseverance was lacking. These enabled it to analyze the collected Martian rocks on the spot and beam the results back to Earth. "To get the most bang for the buck, NASA decided to send it to the place on Mars called the Gale Crater, because it was the tallest stack of sediments on the planet," Tutolo says. The central peak of Gale Crater was about 5 kilometers tall, created by the ancient meteorite impact... The idea then was to climb up Mount Sharp and collect samples from later and later geological periods at increasing elevations, tracing the history of habitability and the great drying up of Mars.
On the way, the carbon missed by the satellites was finally found...
< This article continues on their website >
Posted by EditorDavid from Slashdot
From the short-certs department: "Members of the CA/Browser Forum have voted to slash cert lifespans from the current one year to 47 days," reports Computerworld, "placing an added burden on enterprise IT staff who must ensure they are updated."
In a move that will likely force IT to much more aggressively use web certificate automation services, the Certification Authority Browser Forum (CA/Browser Forum), a gathering of certificate issuers and suppliers of applications that use certificates, voted [last week] to radically slash the lifespan of the certificates that verify the ownership of sites.
The approved changes, which passed overwhelmingly, will be phased in gradually through March 2029, when the certs will only last 47 days.
This controversial change has been debated extensively for more than a year. The group's argument is that this will improve web security in various ways, but some have argued that the group's members have a strong alternative incentive, as they will be the ones earning more money due to this acceleration... Although the group voted overwhelmingly to approve the change, with zero "No" votes, not every member agreed with the decision; five members abstained...
In roughly one year, on March 15, 2026, the "maximum TLS certificate lifespan shrinks to 200 days. This accommodates a six-month renewal cadence. The DCV reuse period reduces to 200 days," according to the passed ballot. The next year, on March 15, 2027, the "maximum TLS certificate lifespan shrinks to 100 days. This accommodates a three-month renewal cadence. The DCV reuse period reduces to 100 days." And on March 15, 2029, "maximum TLS certificate lifespan shrinks to 47 days. This accommodates a one-month renewal cadence. The DCV reuse period reduces to 10 days."
The changes "were primarily pushed by Apple," according to the article, partly to allow more effective reactions to possible changes in cryptography.
< This article continues on their website >
Posted by EditorDavid from Slashdot
From the all-in-your-head department: An anonymous reader shared this report from CNBC:
Neurotech startup Precision Neuroscience on Thursday announced that a core component of its brain implant system has been approved by the U.S. Food and Drug Administration, a major win for the four-year-old company... The company's brain-computer interface will initially be used to help patients with severe paralysis restore functions such as speech and movement, according to its website.
Only part of Precision's system was approved by the FDA on Thursday, but it marks the first full regulatory clearance granted to a company developing a wireless BCI, Precision said in a release. Other prominent startups in the space include Elon Musk's Neuralink, and Synchron, which is backed by Amazon founder Jeff Bezos and Microsoft co-founder Bill Gates....
The piece of Precision's system that the FDA approved is called the Layer 7 Cortical Interface. The microelectrode array is thinner than a human hair and resembles a piece of yellow scotch tape. Each array is made up of 1,024 electrodes that can record, monitor and stimulate electrical activity on the brain's surface. When it is placed on the brain, Precision says it can conform to the surface without damaging any tissue. The FDA authorized Layer 7 to be implanted in patients for up to 30 days, and Precision will be able to market the technology for use in clinical settings. This means surgeons will be able to use the array during procedures to map brain signals, for instance. It is not Precision's end goal for the technology, but it will help the company generate revenue in the near term.
Precision's co-founder and chief science officer also helped co-found Musk's Neuralink in 2017 before departing the following year, according to the article. He nows says this regulatory clearance "will exponentially increase our access to diverse, high-quality data, which will help us to build BCI systems that work more effectively."
Posted by EditorDavid from Slashdot
From the let's-talk department: "Russia is automating the spread of false information to fool AI chatbots," reports the Washington Post. (When researchers checked 10 chatbots, a third of the responses repeated false pro-Russia messaging.)
The Post argues that this tactic offers "a playbook to other bad actors on how to game AI to push content meant to inflame, influence and obfuscate instead of inform," and calls it "a fundamental weakness of the AI industry."
Chatbot answers depend on the data fed into them. A guiding principle is that the more the chatbots read, the more informed their answers will be, which is why the industry is ravenous for content. But mass quantities of well-aimed chaff can skew the answers on specific topics. For Russia, that is the war in Ukraine. But for a politician, it could be an opponent; for a commercial firm, it could be a competitor. "Most chatbots struggle with disinformation," said Giada Pistilli, principal ethicist at open-source AI platform Hugging Face. "They have basic safeguards against harmful content but can't reliably spot sophisticated propaganda, [and] the problem gets worse with search-augmented systems that prioritize recent information."
Early commercial attempts to manipulate chat results also are gathering steam, with some of the same digital marketers who once offered search engine optimization — or SEO — for higher Google rankings now trying to pump up mentions by AI chatbots through "generative engine optimization" — or GEO.
Our current situation "plays into the hands of those with the most means and the most to gain: for now, experts say, that is national governments with expertise in spreading propaganda."
< This article continues on their website >
Posted by EditorDavid from Slashdot
From the down-to-earth department: Launched in 1958, the "awkward-looking" Vanguard-1 satellite ("the size of a grapefruit") is the oldest artificial object orbiting Earth.
"A team of researchers and engineers want to retrieve the satellite for closer inspection and are currently working to find a way to bring Vanguard-1 home," writes Gizmodo:
Other satellites of its time have reentered through Earth's atmosphere, burning up in a fiery death, but Vanguard-1 is still in orbit, silently zooming through the void of space... A team of researchers and engineers from Virginia-based consulting firm Booz Allen Hamilton have put together a proposal on how to retrieve the satellite from space, bringing it back to Earth to study how its equipment has fared over the years, according to a report by Space.com. The team's proposal is detailed in a study published in the Aerospace Research Center earlier this year...
Considering how old Vanguard-1 is, the astronauts would need to handle it with care, according to the team behind the proposal. Before a retrieval attempt, the team suggests that a spacecraft be sent to rendezvous with the satellite to inspect its condition up-close. The engineers suggested partnering with a wealthy space enthusiast willing to fund the outer space venture, or using a SpaceX vehicle to bring the satellite home. Once it's brought back to Earth, experts would examine Vanguard-1 to assess its condition — whether it was struck by space debris, if it's still holding together, and how its time in orbit has affected the satellite. The satellite could then be placed at the Smithsonian for display as a sort of time capsule, a reminder of the history of spaceflight, the team suggests.
< This article continues on their website >
Posted by EditorDavid from Slashdot
From the tangled-web department: "There has never been a consensus or a 'smoking gun' to explain what started the pandemic," writes ABC News.
Yet the Associated Press reports that "A federal website that used to feature information on vaccines, testing and treatment for COVID-19 has been transformed into a page supporting the theory that the pandemic originated with a lab leak." (This despite the fact that "about 325 Americans have died from COVID per week on average over the past four weeks, according to the U.S. Centers for Disease Control and Prevention.")
The covid.gov website shows a photo of President Donald Trump walking between the words "lab" and "leak" under a White House heading... The web page also accuses Dr. Anthony Fauci, the former director of the National Institute of Allergy and Infectious Diseases, of pushing a "preferred narrative" that COVID-19 originated in nature. The origins of COVID have never been proven. Scientists are unsure whether the virus jumped from an animal, as many other viruses have, or came from a laboratory accident. A U.S. intelligence analysis released in 2023 said there is insufficient evidence to prove either theory.
"Many scientists think it's more likely the virus originated naturally in a wild animal and then spilled over into people in a wildlife market located in Wuhan," reports NPR.
And even Jamie Metzl, a critic of the wildlife spillover theory, told NPR that while they appreciated "efforts to dig deeper... it would be a terrible shame if such efforts distracted from essential work to help prevent further infections and treat people suffering from COVID-19 and long COVID." (The federal website covidtests.gov now also redirects instead to the new page...)
< This article continues on their website >
Posted by BeauHD from Slashdot
From the only-the-beginning department: An anonymous reader quotes a report from Reuters: Twenty-one humanoid robots joined thousands of runners at the Yizhuang half-marathon in Beijing on Saturday, the first time these machines have raced alongside humans over a 21-km (13-mile) course. The robots from Chinese manufacturers such as DroidVP and Noetix Robotics came in all shapes and sizes, some shorter than 120 cm (3.9 ft), others as tall as 1.8 m (5.9 ft). One company boasted that its robot looked almost human, with feminine features and the ability to wink and smile.
Some firms tested their robots for weeks before the race. Beijing officials have described the event as more akin to a race car competition, given the need for engineering and navigation teams. "The robots are running very well, very stable ... I feel I'm witnessing the evolution of robots and AI," said spectator He Sishu, who works in artificial intelligence. The robots were accompanied by human trainers, some of whom had to physically support the machines during the race.
A few of the robots wore running shoes, with one donning boxing gloves and another wearing a red headband with the words "Bound to Win" in Chinese. The winning robot was Tiangong Ultra, from the Beijing Innovation Center of Human Robotics, with a time of 2 hours and 40 minutes. The men's winner of the race had a time of 1 hour and 2 minutes. [...] Some robots, like Tiangong Ultra, completed the race, while others struggled from the beginning. One robot fell at the starting line and lay flat for a few minutes before getting up and taking off. One crashed into a railing after running a few metres, causing its human operator to fall over. You can watch a recording of the race in its entirety on YouTube.
Posted by msmash from Slashdot
From the bad-news department: About one sixth of global cropland is contaminated by toxic heavy metals, researchers have estimated, with as many as 1.4 billion people living in high-risk areas worldwide. From a report: Approximately 14 to 17% of cropland globally -- roughly 242m hectares -- is contaminated by at least one toxic metal such as arsenic, cadmium, cobalt, chromium, copper, nickel or lead, at levels that exceed agricultural and human health safety thresholds.
The analysis, which was conducted by the American Association for the Advancement of Science (AAAS) and published in the journal Science, collected data from more than 1,000 regional studies across the globe, as well as using machine learning technology. Dr Liz Rylott, a senior lecturer in the department of biology at the University of York, who was not involved in the research, said: "These findings reveal the deeply worrying extent to which these natural poisons are polluting our soils, entering our food and water, and affecting our health and our environment. Often collectively called heavy metals, these elements cause a range of devastating health problems, including skin lesions, reduced nerve and organ functions, and cancers."
Toxic metal pollution in soil originates from both natural and human activity. Contaminated soil causes significant risks to ecosystems and human health as well as reducing crop yields, jeopardising water quality and food safety owing to bioaccumulation in farm animals. Toxic metal contamination can persist for decades once pollution has been introduced into soil.
Posted by from MMO Champion
Dungeon Adjustments - April 18 Hotfixes
Originally Posted by Blizzard
(
Blue Tracker /
Official Forums)
Today we’ve made updates to address Candle King’s healing absorb, along with some other helpful adjustments and quality-of-life changes. With hotfixes that are now live on all realms:
Dungeons
Darkflame Cleft
Candle King’s Throw Darkflame’s health absorb reduced by 20%.
Cinderbrew Meadery
Hobgoblins no longer spawn Brewdrop on death.
Yes Man health reduced by 10%.
Operation: Mechagon - Workshop
Rim visual added to Plasma Orb in King Mechagon’s encounter.
Line visual added to Mega-Zap from Aerial Unit R-21/X in King Mechagon’s encounter.
K.U.-J.0. health reduced by 10%.
Addressed an issue where K.U.-J.0. can be hit during Venting Flame in certain angle.
Priory of the Sacred Flame
Ardent Paladin health reduced by 6%.
Feverant Sharpshoote’s Pot Shot cooldown increased by 100%.
War Lynx’s health reduced by 20 and Pounce’s impact damage reduced by 20%.
Prioress Murrpray’s health reduced by 12.5%.
Posted by BeauHD from Slashdot
From the limited-value-but-cool-nonetheless department: Researchers at UC Berkeley claim to have induced a previously unseen color by using lasers to stimulate only the M cones in the retina, creating a visual experience beyond the natural limits of human perception. Called olo, the color is described as a highly saturated blue-green but is only visible through direct retinal manipulation. The Guardian reports: "We predicted from the beginning that it would look like an unprecedented color signal but we didn't know what the brain would do with it," said Ren Ng, an electrical engineer at the University of California, Berkeley. "It was jaw-dropping. It's incredibly saturated."
The researchers shared an image of a turquoise square to give a sense of the color, which they named olo, but stressed that the hue could only be experienced through laser manipulation of the retina. "There is no way to convey that color in an article or on a monitor," said Austin Roorda, a vision scientist on the team. "The whole point is that this is not the color we see, it's just not. The color we see is a version of it, but it absolutely pales by comparison with the experience of olo." The findings have been published in the journal Science Advances.