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Aujourd’hui — 11 juin 2024Slashdot

Craig Federighi Says Apple Hopes TO Add Google Gemini, Other AI Models To iOS 18

Par : BeauHD
11 juin 2024 à 22:00
Yesterday, Apple made waves in the media when it revealed a partnership with OpenAI during its annual WWDC keynote. That announcement centered on Apple's decision to bring ChatGPT natively to iOS 18, including Siri and other first-party apps. During a followup interview on Monday, Apple executives Craig Federighi and John Giannandrea hinted at a possible agreement with Google Gemini and other AI chatbots in the future. 9to5Mac reports: Moderated by iJustine, the interview was held in Steve Jobs Theater this afternoon, featuring a discussion with John Giannandrea, Apple's Senior Vice President of Machine Learning and AI Strategy, and Craig Federighi, Senior Vice President of Software Engineering. During the interview, Federighi specifically referenced Apple's hopes to eventually let users choose between different models to use with Apple Intelligence. While ChatGPT from OpenAI is the only option right now, Federighi suggested that Google Gemini could come as an option down the line: "We think ultimately people are going to have a preference perhaps for certain models that they want to use, maybe one that's great for creative writing or one that they prefer for coding. And so we want to enable users ultimately to bring a model of their choice. And so we may look forward to doing integrations with different models like Google Gemini in the future. I mean, nothing to announce right now, but that's our direction." The decision to focus on ChatGPT at the start was because Apple wanted to "start with the best," according to Federighi.

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British Duo Arrested For SMS Phishing Via Homemade Cell Tower

Par : BeauHD
11 juin 2024 à 21:20
British police have arrested two individuals involved in an SMS-based phishing campaign using a unique device police described as a "homemade mobile antenna," "an illegitimate telephone mast," and a "text message blaster." This first-of-its-kind device in the UK was designed to send fraudulent texts impersonating banks and other official organizations, "all while allegedly bypassing network operators' anti-SMS-based phishing, or smishing, defenses," reports The Register. From the report: Thousands of messages were sent using this setup, City of London Police claimed on Friday, with those suspected to be behind the operation misrepresenting themselves as banks "and other official organizations" in their texts. [...] Huayong Xu, 32, of Alton Road in Croydon, was arrested on May 23 and remains the only individual identified by police in this investigation at this stage. He has been charged with possession of articles for use in fraud and will appear at Inner London Crown Court on June 26. The other individual, who wasn't identified and did not have their charges disclosed by police, was arrested on May 9 in Manchester and was bailed. [...] Without any additional information to go on, it's difficult to make any kind of assumption about what these "text message blaster" devices might be. However, one possibility, judging from the messaging from the police, is that the plod are referring to an IMSI catcher aka a Stingray, which acts as a cellphone tower to communicate with people's handhelds. But those are intended primarily for surveillance. What's more likely is that the suspected UK device is perhaps some kind of SIM bank or collection of phones programmed to spam out shedloads of SMSes at a time.

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Finnish Startup 'Flow' Claims It Can 100x Any CPU's Power With Its Companion Chip

Par : BeauHD
11 juin 2024 à 20:42
An anonymous reader quotes a report from TechCrunch: A Finnish startup called Flow Computing is making one of the wildest claims ever heard in silicon engineering: by adding its proprietary companion chip, any CPU can instantly double its performance, increasing to as much as 100x with software tweaks. If it works, it could help the industry keep up with the insatiable compute demand of AI makers. Flow is a spinout of VTT, a Finland state-backed research organization that's a bit like a national lab. The chip technology it's commercializing, which it has branded the Parallel Processing Unit, is the result of research performed at that lab (though VTT is an investor, the IP is owned by Flow). The claim, Flow is first to admit, is laughable on its face. You can't just magically squeeze extra performance out of CPUs across architectures and code bases. If so, Intel or AMD or whoever would have done it years ago. But Flow has been working on something that has been theoretically possible -- it's just that no one has been able to pull it off. Central Processing Units have come a long way since the early days of vacuum tubes and punch cards, but in some fundamental ways they're still the same. Their primary limitation is that as serial rather than parallel processors, they can only do one thing at a time. Of course, they switch that thing a billion times a second across multiple cores and pathways -- but these are all ways of accommodating the single-lane nature of the CPU. (A GPU, in contrast, does many related calculations at once but is specialized in certain operations.) "The CPU is the weakest link in computing," said Flow co-founder and CEO Timo Valtonen. "It's not up to its task, and this will need to change." CPUs have gotten very fast, but even with nanosecond-level responsiveness, there's a tremendous amount of waste in how instructions are carried out simply because of the basic limitation that one task needs to finish before the next one starts. (I'm simplifying here, not being a chip engineer myself.) What Flow claims to have done is remove this limitation, turning the CPU from a one-lane street into a multi-lane highway. The CPU is still limited to doing one task at a time, but Flow's Parallel Processing Unit (PPU), as they call it, essentially performs nanosecond-scale traffic management on-die to move tasks into and out of the processor faster than has previously been possible. [...] Flow is just now emerging from stealth, with [about $4.3 million] in pre-seed funding led by Butterfly Ventures, with participation from FOV Ventures, Sarsia, Stephen Industries, Superhero Capital and Business Finland. The primary challenge Flow faces is that for its technology to be integrated, it requires collaboration at the chip-design level. This means chipmakers need to redesign their products to include the PPU, which is a substantial investment. Given the industry's cautious nature and the existing roadmaps of major chip manufacturers, the uptake of this new technology might be slow. Companies are often reluctant to adopt unproven technologies that could disrupt their long-term plans. The white paper can be read here. A Flow Computing FAQ is also available here.

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Advisory Panel of Experts Endorses FDA Approval of New Alzheimer's Drug

Par : BeauHD
11 juin 2024 à 13:00
An anonymous reader quotes a report from the New York Times: A committee of independent advisers to the Food and Drug Administration voted unanimously on Monday that the benefits outweigh the risks of the newest experimental drug for Alzheimer's disease. Alzheimer's afflicts more than six million Americans. It has no cure, and there is no treatment or lifestyle modification that can restore memory loss or reverse cognitive decline. The drug, made by Eli Lilly, is donanemab. It modestly slowed cognitive decline in patients in the early stages of the disease but also had significant safety risks, including swelling and bleeding in the brain. The committee concluded, though, that the consequences of Alzheimer's are so dire that even a modest benefit can be worthwhile. The F.D.A. usually follows the advice of the agency's advisory committees but not always. The drug is based on a long-held hypothesis that Alzheimer's disease begins when rough hard balls of amyloid, a protein, pile up in patients' brains, followed by a cascade of reactions leading to the death of neurons. The idea is to treat Alzheimer's by attacking amyloid, clearing it from the brain. Two similar amyloid-fighting drugs were approved recently: Leqembi, made by Eisai and Biogen, was approved last year. That drug's risks and modest benefits are similar to those of donanemab. Aduhelm, made by Biogen, is the other drug and was approved in 2021 but was discontinued because there was insufficient evidence that it could benefit patients. Donanemab was expected to be approved earlier this year, but in March, the F.D.A. decided that, instead, it would require donanemabto undergo the scrutiny of an independent advisory committee, a surprise to Eli Lilly. The vote, said Dr. Daniel Skovronsky, chief scientific officer at Lilly, confirmed his 25-year quest to find a way to intervene in the Alzheimer's disease. Now, he said, the company is starting a study that, it hopes, will stop the disease before symptoms even begin. At issue before the committee on Monday were some unusual aspects of donanemab's clinical trials, especially that study participants stopped taking the drug as soon as their amyloid was cleared. Some experts questioned whether stopping was the best strategy and whether clinical practice should include halting the treatment after amyloid clearance.

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Google Shuts Down GPay App, P2P Payments In the US

Par : BeauHD
11 juin 2024 à 10:00
After announcing a shut down date in February, Google's "GPay" app has officially stopped working for users in the U.S. "Starting on June 4, GPay -- as was the name of the app on Android homescreens -- automatically signed US users out," reports 9to5Google. "Attempting to login again explains how: 'The Google Pay US app is no longer available. You can still tap to pay using the Google Wallet app.'" From the report: Additionally, Google no longer offers peer-to-peer payments in the US. You can use the Google Pay website to view and transfer your balance -- money you've received or rewards -- to a bank account after June. The focus is now on Google Wallet and digitizing everything in your physical wallet. There's no equivalent finance tracking functionality. Meanwhile, "Google Pay" still exists as the name for what you're actually using when making a physical or online purchase with your phone.

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Early Morning Frost Spotted On Some of Mars' Huge Mountains

Par : BeauHD
11 juin 2024 à 07:00
Scientists have discovered early morning frost on the summits of Martian volcanoes near the planet's equator, indicating that water ice forms overnight in colder months and evaporates after sunrise. "While the frosty layer is exceptionally thin, it covers an enormous area," reports The Guardian. "Scientists calculate that in the more frigid Martian seasons, 150,000 tons of water, equivalent to 60 Olympic swimming pools, condense daily on the tops of the towering mountains." From the report: "It's the first time we've discovered water frost on the volcano summits and the first time we've discovered water frost in the equatorial regions of Mars," said Adomas Valantinas, a planetary scientist at the University of Berne in Switzerland and Brown University in the US. "What we're seeing could be a trace of a past Martian climate," Valantinas said of the frost-tipped volcanoes. "It could be related to atmospheric climate processes that were operating earlier in Martian history, maybe millions of years ago." Valantinas spotted the frost-capped volcanoes in high-resolution colour images snapped in the early morning hours on Mars by the European Space Agency's Trace Gas Orbiter (TGO). With colleagues, he confirmed the discovery using a spectrometer on TGO and further images taken by the agency's Mars Express orbiter. The frost appears as a bluish hue on the caldera floors and is absent from well-lit slopes. [...] [W]riting in Nature Geoscience, the researchers describe how Martian winds may blow up the mountainsides and carry more moist air into the calderas where it condenses and settles as frost at particular times of year. Modeling of the process suggests the frost is water ice as the peaks are not cold enough for carbon dioxide frost to form.

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Study Finds a Quarter of Bosses Hoped RTO Would Make Employees Quit

Par : BeauHD
11 juin 2024 à 03:30
An anonymous reader quotes a report from The Register: A study claims to have proof of what some have suspected: return to office mandates are just back-channel layoffs and post-COVID work culture is making everyone miserable. HR software biz BambooHR surveyed more than 1,500 employees, a third of whom work in HR. The findings suggest the return to office movement has been a poorly-executed failure, but one particular figure stands out -- a quarter of executives and a fifth of HR professionals hoped RTO mandates would result in staff leaving. While that statistic essentially admits the quiet part out loud, there was some merit to that belief. People did quit when RTO mandates were enforced at many of the largest companies, but it wasn't enough, the study reports. More than a third (37 percent) of respondents in leadership roles believed their employers had undertaken layoffs in the past 12 months as a result of too few people quitting in protest of RTO mandates, the study found. Nearly the same number thought their management wanted employees back in the office to monitor them more closely. The end result has been the growth of a different office culture, one that's even more performative, suspicious, and divisive than before the COVID pandemic, the study concludes. According to the report, most employees working remotely and in-person both feel the need to demonstrate productivity, which for more than a third of employees means being seen socializing and moving around the office. That intense need to be visible may actually be harming productivity, study author and BambooHR's own head of HR Anita Grantham concluded in her findings. A full 42 percent of employees who responded to the Bamboo survey said they show up solely to be seen by bosses and managers. If bosses think their presence in the office is making any difference to the amount of work getting done, the results indicate that's not the case. Remote employees and in-office employees both report spending around two hours of every day not working. Those in-office ones, of course, are probably spending those ten hours a week looking as busy as possible. Away from the office, employees feel the need to demonstrate presence by being hyper-available and never going offline -- the so-called "green status effect," the data suggests. "The distrusting and performative cultures some companies are cultivating are harmful to bottom-line growth," Grantham said, adding that RTO policies are okay, but not if they don't consider individual employee needs. "The conversation around work modes is one of the most important things to address and get clear on as a business," Grantham said. "It often gets reduced to just RTO, but it's actually a much bigger conversation."

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New York Times Source Code Stolen Using Exposed GitHub Token

Par : BeauHD
11 juin 2024 à 00:45
The New York Times has confirmed that its internal source code was leaked on 4chan after being stolen from the company's GitHub repositories in January 2024. BleepingComputer reports: As first seen by VX-Underground, the internal data was leaked on Thursday by an anonymous user who posted a torrent to a 273GB archive containing the stolen data. "Basically all source code belonging to The New York Times Company, 270GB," reads the 4chan forum post. "There are around 5 thousand repos (out of them less than 30 are additionally encrypted I think), 3.6 million files total, uncompressed tar." While BleepingComputer did not download the archive, the threat actor shared a text file containing a complete list of the 6,223 folders stolen from the company's GitHub repository. The folder names indicate that a wide variety of information was stolen, including IT documentation, infrastructure tools, and source code, allegedly including the viral Wordle game. A 'readme' file in the archive states that the threat actor used an exposed GitHub token to access the company's repositories and steal the data. The company said that the breach of its GitHub account did not affect its internal corporate systems and had no impact on its operations. The Times said in a statement to BleepingComputer: "The underlying event related to yesterday's posting occurred in January 2024 when a credential to a cloud-based third-party code platform was inadvertently made available. The issue was quickly identified and we took appropriate measures in response at the time. There is no indication of unauthorized access to Times-owned systems nor impact to our operations related to this event. Our security measures include continuous monitoring for anomalous activity."

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Apple Made an iPad Calculator App After 14 Years

Par : BeauHD
11 juin 2024 à 00:02
Jay Peters reports via The Verge: The iPad is finally getting a Calculator app as part of iPadOS 18. The long-requested app was just announced by Apple at WWDC 2024. On its face, the app looks a lot like the calculator you might be familiar with from iOS. But it also supports Apple Pencil, meaning that you can write down math problems and the app will solve them thanks to a feature Apple calls Math Notes. Other features included in iPadOS 18 include a new, customizable floating tab bar; enhanced SharePlay functionality for easier screen sharing and remote control of another person's iPad; and Smart Script, a handwriting feature that refines and improves legibility using machine learning.

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The Word 'Bot' Is Increasingly Being Used As an Insult On Social Media

Par : BeauHD
10 juin 2024 à 23:20
The definition of the word "bot" is shifting to become an insult to someone you know is human, according to researchers who analyzed more than 22 million tweets. Researchers found this shift began around 2017, with left-leaning users more likely to accuse right-leaning users of being bots. "A potential explanation might be that media frequently reported about right-wing bot networks influencing major events like the [2016] US election," says Dennis Assenmacher at Leibniz Institute for Social Sciences in Cologne, Germany. "However, this is just speculation and would need confirmation." NewScientist reports: To investigate, Assenmacher and his colleagues looked at how users perceive what is a bot or not. They did so by looking at how the word "bot" was used on Twitter between 2007 and December 2022 (the social network changed its name to X in 2023, following its purchase by Elon Musk), analyzing the words that appeared next to it in more than 22 million English-language tweets. The team found that before 2017, the word was usually deployed alongside allegations of automated behavior of the type that would traditionally fit the definition of a bot, such as "software," "script" or "machine." After that date, the use shifted. "Now, the accusations have become more like an insult, dehumanizing people, insulting them, and using this as a technique to deny their intelligence and deny their right to participate in a conversation," says Assenmacher. The study has been published in the journal Proceedings of the Eighteenth International AAAI Conference on Web and Social Media.

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Hier — 10 juin 2024Slashdot

Apple Introduces Standalone 'Passwords' App

Par : BeauHD
10 juin 2024 à 22:40
An anonymous reader quotes a report from MacRumors: iOS 18, iPadOS 18, and macOS Sequoia feature a new, dedicated Passwords app for faster access to important credentials. The Passwords app replaces iCloud Keychain, which is currently only accessible via a menu in Settings. Now, passwords are available directly via a standalone app for markedly quicker access, bringing it more in line with rival services. The Passwords app consolidates various credentials, including passwords, passkeys, and Wi-Fi passwords, into a single, easily accessible location. Users can filter and sort their accounts based on various criteria, such as recently created accounts, credential type, or membership in shared groups. Passwords is also compatible with Windows via the iCloud for Windows app, extending its utility to users who operate across different platforms. The developer beta versions of iOS 18, iPadOS 18, and macOS Sequoia are available today with official release to the public scheduled for the fall, providing an early look at the Passwords app.

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Apple Announces visionOS 2 With 3D Photo Transformations and An Ultrawide Mac Display

Par : BeauHD
10 juin 2024 à 21:20
Apple has announced visionOS 2 for its Vision Pro spatial computing headset, bringing mouse support, an ultrawide virtual Mac display option, and new Photo features. The company says it's expected to launch "later this year." The Verge reports: The most significant update, for all the productivity heads out there, is a new ultrawide virtual display feature. Apple says that in visionOS 2, you'll be able to connect a Vision Pro to a Mac to generate a dual 4K-equivalent curved ultrawide display. Right now, the virtual display feature only does a single up to 5K one. Also, the company will finally add mouse support to the Vision Pro -- at launch, the headset could work with trackpads like the one on a MacBook Air or the standalone Magic Trackpad 2, but oddly left out mouse support. You can still use one inside a mirrored display in the Vision Pro, but not outside of that screen in, say, an iPad or Vision Pro app. Apple says that in the new update, users will be able to convert any image in the Photos app to a spatial one. Also, visionOS 2 will have train support, so the Vision Pro's travel mode will no longer be limited to just airplanes. The company also says it's adding SharePlay to the visionOS Photos app, which means that you can share the app with another Vision Pro owner using Spatial Personas [...]. The company says Red Bull is making a new immersive sports series, while Apple is making its first scripted immersive feature. Apple also said that Canon is releasing a new spatial lens for the EOS R7, one designed specifically for creating content for the Vision Pro. Finally, the company is rolling out the Vision Pro abroad. Apple is going to start taking preorders in China, Hong Kong, Japan, and Singapore on June 13th at 6PM PT, and it'll be available in those countries on June 28th. Australia, Canada, France, Germany, and the UK will get preorders later, on June 28th at 5AM PT, with the headset officially available on July 12th.

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One-Line Patch For Intel Meteor Lake Yields Up To 72% Better Performance

Par : BeauHD
10 juin 2024 à 20:40
Michael Larabel reports via Phoronix: Covered last week on Phoronix was a new patch from Intel that with tuning to the P-State CPU frequency scaling driver was showing big wins for Intel Core Ultra "Meteor Lake" performance and power efficiency. I was curious with the Intel claims posted for a couple benchmarks and thus over the weekend set out to run many Intel Meteor Lake benchmarks on this one-line kernel patch... The results are great for boosting the Linux performance of Intel Core ultra laptops with as much as 72% better performance. [...] When looking at the CPU power consumption overall, for the wide variety of workloads tested it was just a slight uptick in power use and thus overall leading to slightly better power efficiency too. See all the data here. So this is quite a nice one-line Linux kernel patch for Meteor Lake and will hopefully be mainlined to the Linux kernel for Linux 6.11 if not squeezing it in as a "fix" for the current Linux 6.10 cycle. It's just too bad though that it took six months after launch for this tuned EPP value to be determined. Fresh benchmarks between Intel Core Ultra and AMD Ryzen on the latest Linux software will be coming up soon on Phoronix.

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ISPs Ask FCC For Tax On Big Tech To Fund Broadband Networks and Discounts

Par : BeauHD
10 juin 2024 à 19:20
An anonymous reader quotes a report from Ars Technica: Internet service providers are again urging the Federal Communications Commission to impose new fees on Big Tech firms and use the money to subsidize broadband network deployment and affordability programs. If approved, the request would force Big Tech firms to pay into the FCC's Universal Service Fund (USF), which in turn distributes money to broadband providers. The request was made on June 6 by USTelecom, a lobby group for AT&T, Verizon, CenturyLink/Lumen, and smaller telcos. USTelecom has made similar arguments before, but its latest request to the FCC argues that the recent death of a broadband discount program should spur the FCC to start extracting money from Big Tech. "Through focusing on the Big Tech companies who benefit most from broadband connectivity, the Commission will fairly allocate the burden of sustaining USF," USTelecom wrote in the FCC filing last week. The USF spends about $8 billion a year. Phone companies must pay a percentage of their revenue into the fund, and telcos generally pass those fees on to consumers with a "Universal Service" line item on telephone bills. The money is directed back to the telco industry with programs like the Connect America Fund and Rural Digital Opportunity Fund, which subsidize network construction in unserved and underserved areas. The USF also funds Lifeline program discounts for people with low incomes. FCC Chairwoman Jessica Rosenworcel hasn't stated any intention to expand USF contributions to Big Tech. Separately, she rejected calls to impose Universal Service fees on broadband, leaving phone service as the only source of USF revenue. The USTelecom filing came in response to the FCC asking for input on its latest analysis of competition in the communications marketplace. USTelecom says the USF is relevant to the proceeding because "the Universal Service Fund is critical for maintaining a competitive marketplace and an expanded contributions base is necessary to sustain the fund." No changes to the USF would be made in this proceeding, though USTelecom's comments could be addressed in the FCC's final report.

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À partir d’avant-hierSlashdot

HP CEO: Printed Pages Are Down 20% Since Pandemic

Par : BeauHD
8 juin 2024 à 10:00
HP is facing something of a challenge as the number of printed pages has decreased by 20% since the pandemic. "On the office space, clearly, the amount of pages that is being printed is lower than before the pandemic," HP boss Enrique Lores told tech investors at Bernstein's 40th Annual Strategic Decision Conference last week. "And this is really driven by what we call hybrid work. There are less people in the office every day, and this has driven the amount of pages down." The Register reports: "I use pages as a proxy because, depending on what happens with pages, happens eventually with devices. Before the pandemic, our estimates were that we were expecting to see a 20 percent reduction of printing. And actually, we were looking at the numbers ... and this is more or less where we are." In terms of users printing at home, "during the pandemic, we saw a spike of pages printed, and since then, the number of pages has been declining," Lores added. The levels are not unexpected, though, he said. The industrial customer base was "impacted during the last two or three years by a reduction of capital investments," but recovery is showing up, with those customers printing more labels and packaging. Previous research by IDC showed around 450 billion fewer pages were printed in homes and office worldwide in 2020 versus the year before the pandemic, equating to a 19 percent plunge. It merely accelerated the long-term trend. [...]

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Carbon Dioxide Levels In the Atmosphere Are Surging 'Faster Than Ever,' Report Finds

Par : BeauHD
8 juin 2024 à 07:00
Carbon dioxide levels in Earth's atmosphere are accumulating "faster than ever" and have reached unprecedented levels, with a peak of 426.9 ppm recorded at NOAA's Mauna Loa Observatory in May 2024, said scientists from NOAA, the Scripps Institution of Oceanography and the University of California San Diego. CBS News reports: "Over the past year, we've experienced the hottest year on record, the hottest ocean temperatures on record, and a seemingly endless string of heat waves, droughts, floods, wildfires and storms," NOAA Administrator Rick Spinrad said in a press release. "Now we are finding that atmospheric CO2 levels are increasing faster than ever." The researchers measured carbon dioxide, or CO2, levels at the Mauna Loa Atmospheric Baseline Observatory. They found that atmospheric levels of the gas hit a seasonal peak of just under 427 parts per million in May -- an increase of 2.9 ppm since May 2023 and the fifth-largest annual growth in 50 years of data recording. It also made official that the past two years saw the largest jump in the May peak -- when CO2 levels are at their highest in the Northern Hemisphere. John Miller, a NOAA carbon cycle scientist, said that the jump likely stems from the continuous rampant burning of fossil fuels as well as El Nino conditions making the planet's ability to absorb CO2 more difficult. The surge of carbon dioxide levels at the measuring station surpassed even the global average set last year, which was a record high of 419.3 ppm -- 50% higher than it was before the Industrial Revolution. However, NOAA noted that their observations were taken at the observatory specifically, and do not "capture the changes of CO2 across the globe," although global measurements have proven consistent without those at Mauna Loa. "Not only is CO2 now at the highest level in millions of years, it is also rising faster than ever," Ralph Keeling, director of Scripps' CO2 program, said in the release. "Each year achieves a higher maximum due to fossil-fuel burning, which releases pollution in the form of carbon dioxide into the atmosphere. Fossil fuel pollution just keeps building up, much like trash in a landfill." "We are living in unprecedented times. ... This string of hottest months will be remembered as comparatively cold," Carlo Buontempo, director of Copernicus, added.

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Researchers Plan To Retract Landmark Alzheimer's Paper Containing Doctored Images

Par : BeauHD
8 juin 2024 à 03:30
An anonymous reader quotes a report from Science Magazine: Authors of a landmark Alzheimer's disease research paper published in Nature in 2006 have agreed to retract the study in response to allegations of image manipulation. University of Minnesota (UMN) Twin Cities neuroscientist Karen Ashe, the paper's senior author, acknowledged in a post on the journal discussion site PubPeer that the paper contains doctored images. The study has been cited nearly 2500 times, and would be the most cited paper ever to be retracted, according to Retraction Watch data. "Although I had no knowledge of any image manipulations in the published paper until it was brought to my attention two years ago," Ashe wrote on PubPeer, "it is clear that several of the figures in Lesne et al. (2006) have been manipulated ... for which I as the senior and corresponding author take ultimate responsibility." After initially arguing the paper's problems could be addressed with a correction, Ashe said in another post last week that all of the authors had agreed to a retraction -- with the exception of its first author, UMN neuro-scientist Sylvain Lesne, a protege of Ashe's who was the focus of a 2022 investigation by Science. "It's unfortunate that it has taken 2 years to make the decision to retract," says Donna Wilcock, an Indiana University neuroscientist and editor of the journal Alzheimer's & Dementia. "The evidence of manipulation was overwhelming." The 2006 paper suggested an amyloid beta (AB) protein called AB*56 could cause Alzheimer's. AB proteins have long been linked to the disease. The authors reported that AB*56 was present in mice genetically engineered to develop an Alzheimer's-like condition, and that it built up in step with their cognitive decline. The team also reported memory deficits in rats injected with AB*56. For years researchers had tried to improve Alzheimer's outcomes by stripping amyloid proteins from the brain, but the experimental drugs all failed. AB*56 seemed to offer a more specific and promising therapeutic target, and many embraced the finding. Funding for related work rose sharply. But the Science investigation revealed evidence that the Nature paper and numerous others co-authored by Lesne, some listing Ashe as senior author, appeared to use manipulated data. After the story was published, leading scientists who had cited the paper to support their own experiments questioned whether AB*56 could be reliably detected and purified as described by Lesne and Ashe -- or even existed. Some said the problems in that paper and others supported fresh doubts about the dominant hypothesis that amyloid drives Alzheimer's. Others maintained that the hypothesis remains viable. That debate has continued amid the approval of the antiamyloid drug Leqembi, which modestly slows cognitive decline but carries risks of serious or even fatal brain swelling or bleeding.

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World's Largest Solar Farm Goes Online In China

Par : BeauHD
8 juin 2024 à 01:25
Michelle Lewis reports via Electrek: The world's largest solar farm, in the desert in northwestern Xinjiang, is now connected to China's grid. The 3.5-gigawatt (GW), 33,000-acre solar farm is outside Urumqi, Xinjiang's capital. The state asset regulator's website cited the Power Construction Corp of China and said it came online on Monday. The solar farm will generate about 6.09 billion kilowatt hours (kWh) of electricity annually. Assuming an EV consumes about 3,000 kWh per year, 6.09 billion kWh could power 2.03 million EVs annually. The world's largest solar farm in Xinjiang is part of China's megabase project, a plan to install 455 GW of wind and solar. The megabase projects are sited in sparsely populated, resource-rich areas and send their generated energy to major urban centers, such as on China's eastern seaboard. China now boasts the three largest solar farms in the world by capacity. The Ningxia Tenggeli and Golmud Wutumeiren solar farms, each with a capacity of 3 MW, are already online.

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Nvidia Takes 88% of the GPU Market Share

Par : BeauHD
8 juin 2024 à 00:45
As reported by Jon Peddie Research, Nvidia now holds 88% of the GPU market after its market share jumped 8% in its most recent quarter. "This jump shaves 7% off of AMD's share, putting it down to 19% total," reports XDA Developers. "And if you're wondering where that extra 1% went, it came from all of Intel's market share, squashing it down to 0%." From the report: Dr. Jon Peddie, president of Jon Peddie Research, mentions how the GPU market hasn't really looked "normal" since the 2007 recession. Ever since then, everything from the crypto boom to COVID has messed with the usual patterns. Usually, the first quarter of a year shows a bit of a dip in GPU sales, but because of AI's influence, it may seem like that previous norm may be forever gone: "Therefore, one would expect Q2'24, a traditional quarter, to also be down. But, all the vendors are predicting a growth quarter, mostly driven by AI training systems in hyperscalers. Whereas AI trainers use a GPU, the demand for them can steal parts from the gaming segment. So, for Q2, we expect to see a flat to low gaming AIB result and another increase in AI trainer GPU shipments. The new normality is no normality."

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