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Caffeine Makes Fuel Cells More Efficient, Cuts Cost of Energy Storage

Par : BeauHD
15 mars 2024 à 01:25
Dan Robinson reports via The Register: Adding caffeine can enhance the efficiency of fuel cells, reducing the need for platinum in electrodes and significantly reducing the cost of making them, according to researchers in Japan. [...] The study, published in the journal Communications Chemistry, concerns the catalysis process at the cathode of a fuel cell and making this reaction more efficient. Fuel cells work somewhat like batteries. They generate power by converting the chemical energy of a fuel (or electrolyte) and an oxidizing agent into electricity. This is typically hydrogen as a fuel and oxygen as an oxidizer. Unlike batteries with limited lifespans, fuel cells can generate power as long as fuel is supplied. The hydrogen undergoes oxidation at the anode, producing hydrogen ions and electrons. The ions move through the hydrogen electrolyte to the cathode, while the electrons flow through an external circuit, generating electricity. At the cathode, oxygen combines with the hydrogen ions and electrons, resulting in water as a by-product. However, this water impacts the performance of the fuel cell, reacting with the platinum (Pt) to form a layer of platinum hydroxide (PtOH) on the electrode and interfering with the catalysis of the oxygen reduction reaction (ORR), according to the researchers. To maintain efficient operation, fuel cells require a high Pt loading (greater platinum content), which significantly ups the costs of fuel cells. A quick look online found market prices for platinum of $29.98 per gram, or $932.61 per ounce, at the time of writing. The researchers found that adding caffeine can improve the ORR activity of platinum electrodes 11 fold, making the reaction more efficient. If you are wondering (as we were) how they came to be experimenting with this, the paper explains that modifying electrodes with hydrophobic material is known to be an effective method for enhancing ORR. Caffeine is less toxic than other hydrophobic substances, and it activates the hydrogen evolution and oxidation reactions of Pt nanoparticles and caffeine doped carbons. Got that? Chiba University's work was led by Professor Nagahiro Hoshi at the Department of Applied Chemistry and Biotechnology. He explained that the researchers found a notable improvement in the electrode's ORR activity with an increase in caffeine concentration in the electrolyte. This forms a thin layer on the electrode's surface, effectively preventing the formation of PtOH, but the effect depends on the orientation of the platinum atoms on the electrode's surface. The paper refers to these as Pt(100), Pt(110) and Pt(111), with the latter two showing increased ORR activity, while there was no noticeable effect with Pt(100). The researchers do not explain if this latter effect might be a problem, but instead claim that their discovery has the potential to improve the designs of fuel cells and lead to more widespread adoption.

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CIA Used Chinese Social Media In Covert Influence Operation Against Xi Jinping's Government

Par : BeauHD
15 mars 2024 à 03:30
An anonymous reader quotes a report from Reuters: Two years into office, President Donald Trump authorized the Central Intelligence Agency to launch a clandestine campaign on Chinese social media aimed at turning public opinion in China against its government, according to former U.S. officials with direct knowledge of the highly classified operation. Three former officials told Reuters that the CIA created a small team of operatives who used bogus internet identities to spread negative narratives about Xi Jinping's government while leaking disparaging intelligence to overseas news outlets. The effort, which began in 2019, has not been previously reported. The CIA team promoted allegations that members of the ruling Communist Party were hiding ill-gotten money overseas and slammed as corrupt and wasteful China's Belt and Road Initiative, which provides financing for infrastructure projects in the developing world, the sources told Reuters. Although the U.S. officials declined to provide specific details of these operations, they said the disparaging narratives were based in fact despite being secretly released by intelligence operatives under false cover. The efforts within China were intended to foment paranoia among top leaders there, forcing its government to expend resources chasing intrusions into Beijing's tightly controlled internet, two former officials said. "We wanted them chasing ghosts," one of these former officials said. [...] The CIA operation came in response to years of aggressive covert efforts by China aimed at increasing its global influence, the sources said. During his presidency, Trump pushed a tougher response to China than had his predecessors. The CIA's campaign signaled a return to methods that marked Washington's struggle with the former Soviet Union. "The Cold War is back," said Tim Weiner, author of a book on the history of political warfare. Reuters was unable to determine the impact of the secret operations or whether the administration of President Joe Biden has maintained the CIA program.

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Southern Oregon Now Boasts World's Largest Dark Sky Sanctuary

Par : BeauHD
15 mars 2024 à 07:00
Sheraz Sadiq reports via Oregon Public Broadcasting: An area that's nearly half the size of New Jersey in southern Oregon was recently named the world's largest dark sky sanctuary by DarkSky International. The nonprofit works to combat light pollution through advocacy and conservation, including a program that has certified more than 200 places around the world to protect the night sky. The Oregon Outback International Dark Sky Sanctuary spans 2.5 million acres of mostly public land in eastern Lake County, and could eventually grow to more than four times that size to include parts of Harney and Malheur Counties. To win certification as a Dark Sky Sanctuary, the applicants had to work with numerous stakeholders to draw the site's boundaries, monitor night sky quality, inventory outdoor lights and replace more than 60 lights on public and private lands. With the inclusion of parts of Harney and Malheur Counties, the sanctuary would surpass 11 million acres, notes KLCC. More than half of the area is under the control of the U.S. Bureau of Land Management.

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Giant Volcano Discovered On Mars

Par : BeauHD
15 mars 2024 à 10:00
Scientists have discovered a giant volcano on Mars, as well as a possible sheet of buried glacier ice near the planet's equator. Phys.Org reports: Imaged repeatedly by orbiting spacecraft around Mars since Mariner 9 in 1971 -- but deeply eroded beyond easy recognition, the giant volcano had been hiding in plain sight for decades in one of Mars' most iconic regions, at the boundary between the heavily fractured maze-like Noctis Labyrinthus (Labyrinth of the Night) and the monumental canyons of Valles Marineris (Valleys of Mariner). Provisionally designated "Noctis volcano" pending an official name, the structure is centered at 7 degrees 35' S, 93 degrees 55' W. It reaches +9022 meters (29,600 feet) in elevation and spans 450 kilometers (280 miles) in width. The volcano's gigantic size and complex modification history indicate that it has been active for a very long time. In its southeastern part lies a thin, recent volcanic deposit beneath which glacier ice is likely still present. This combined giant volcano and possible glacier ice discovery is significant, as it points to an exciting new location to study Mars' geologic evolution through time, search for life, and explore with robots and humans in the future. The announcement was made at the 55th Lunar and Planetary Science Conference in The Woodlands, Texas. You can read more about it here (PDF).

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FCC Scraps Old Speed Benchmark, Says Broadband Should Be at Least 100Mbps

Par : msmash
15 mars 2024 à 14:00
The Federal Communications Commission has voted to raise its Internet speed benchmark for the first time since January 2015, concluding that modern broadband service should provide at least 100Mbps download speeds and 20Mbps upload speeds. From a report: An FCC press release after today's 3-2 vote said the 100Mbps/20Mbps benchmark "is based on the standards now used in multiple federal and state programs," such as those used to distribute funding to expand networks. The new benchmark also reflects "consumer usage patterns, and what is actually available from and marketed by Internet service providers," the FCC said. The previous standard of 25Mbps downstream and 3Mbps upstream lasted through the entire Trump era and most of President Biden's term. There has been a clear partisan divide on the speed standard, with Democrats pushing for a higher benchmark and Republicans arguing that it shouldn't be raised. The standard is partly symbolic but can indirectly impact potential FCC regulations. The FCC is required under US law to regularly evaluate whether "advanced telecommunications capability is being deployed to all Americans in a reasonable and timely fashion" and to "take immediate action to accelerate deployment" and promote competition if current deployment is not "reasonable and timely."

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India Cuts Import Taxes on EVs in Boost For Tesla's Entry Plans

Par : msmash
15 mars 2024 à 14:40
India will lower import taxes on certain electric vehicles for companies committing to invest at least $500 million and setting up a local manufacturing facility within three years, a policy shift that could potentially bolster Tesla's plans to enter the South Asian market. From a report: Companies must invest a minimum of $500 million in the country and will have three years to establish local manufacturing for EVs with at least 25% of components sourced domestically, according to a government press release on Friday. Firms meeting these requirements will be allowed to import 8,000 EVs a year at a reduced import duty of 15% on cars costing $35,000 and above. India currently levies a tax of 70% to 100% on imported cars depending on their value. The policy change is likely going to pave the way for Tesla to enter India, as the Elon Musk-led company has been in talks with the government to lower import duties on its electric cars for years. The move also aligns with India's goal to boost the adoption of EVs and reduce its dependence on oil imports, with the country setting a target of achieving 30% electric car sales by 2030.

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Microsoft Singles Out Google's Competitive Edge in Generative AI

Par : msmash
15 mars 2024 à 15:21
Google enjoys a competitive edge in generative AI due to its trove of data and AI-optimised chips, Microsoft has told EU antitrust regulators, underscoring the rivalry between the two tech giants. From a report: The comments by Microsoft were in response to a consultation launched by the European Commission in January on the level of competition in generative AI. The growing popularity of generative AI, which can generate human-like responses to written prompts and is exemplified by Microsoft-backed OpenAI's ChatGPT and Google's chatbot Gemini, has triggered concerns about misinformation and fake news. "Today, only one company - Google - is vertically integrated in a manner that provides it with strength and independence at every AI layer from chips to a thriving mobile app store. Everyone else must rely on partnerships to innovate and compete," Microsoft said in its report to the Commission. It said Google's self-supply AI semiconductors would give it a competitive advantage for the years to come, while its large sets of proprietary data from Google Search Index and YouTube enabled it to train its large language model Gemini. "YouTube provides an unparalleled set of video content; it hosts an estimated 14 billion videos. Google has access to such content; but other AI developers do not," Microsoft said.

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Cable And Satellite Providers Required To Disclose 'All In' Pricing Under Newly Passed FCC Rules

Par : msmash
15 mars 2024 à 16:01
The FCC passed new rules that will require cable and satellite providers to clearly disclose the "all in" price of subscriptions in promotional materials. From a report: "The advertised price for a service should be the price you pay when your bill arrives," FCC Chairwoman Jessica Rosenworcel said. "It shouldn't include a bunch of unexpected junk fees that are separate from the top-line price you were told when you signed up." Rosenworcel cited fees like "broadcast subscription" and "regional sports assessments." "It is not just annoying," she said. "It makes it hard for consumers to compare service in a market that is evolving and has so many new ways to watch." The new rules passed 3-2. Commissioners Brendan Carr and Nathan Simington voted against it. Rosenworcel has also proposed other measures aimed at "junk fees," while the White House has focused on the elimination or limitation of things like surcharges and late fees in areas like concert ticketing, airline reservations and banking.

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Supreme Court Tosses Rulings on Public Officials' Social Media Blockings

Par : msmash
15 mars 2024 à 16:50
The Supreme Court clarified when public officials can block critical constituents from their personal profiles without violating their constitutional protections in a unanimous decision Friday. From a report: After hearing appeals of two conflicting rulings -- one filed against school board members in Southern California and another filed against the city manager of Port Huron, Mich. -- the justices provided no definitive resolution to the disputes and instead sent both cases back to lower courts to apply the new legal test. In a unanimous decision authored by Justice Amy Coney Barrett, the court said state officials cannot block constituents on their personal pages when they have "actual authority to speak on behalf of the State on a particular matter" and "purported to exercise that authority in the relevant posts." "For social-media activity to constitute state action, an official must not only have state authority -- he must also purport to use it," Barrett wrote. The case marked the latest battle over public officials' social media presence when they mesh their official and personal roles. The 6th U.S. Circuit Court of Appeals, which heard the Michigan case, sided with the city manager, James Freed, who deleted comments on his Facebook page left by a resident and blocked several of the resident's profiles. The resident, Kevin Lindke, had criticized Freed over his handling of the COVID-19 pandemic, court filings indicate.

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Apple, Investors Reach $490 Million Settlement in Fraud Case

Par : msmash
15 mars 2024 à 18:23
Apple reached a $490 million settlement of a class-action lawsuit brought by a group of investors who accused Chief Executive Officer Tim Cook of misleading them in 2018 about the company's sales prospects. From a report: Cook made false statements about the company's business in China that caused Apple stock to trade at artificially inflated prices, the investors said in their complaint, which alleged violation of securities laws. Lawyers disclosed the proposed settlement in a request for judicial approval filed Friday in federal court in Oakland, California. The settlement comes as Apple continues to face headwinds in China, where iPhone sales fell by a surprising 24% over the first six weeks of this year, according to independent research released earlier this month. Attorneys for the investors described the settlement as the third-largest securities class-action recovery in the district's history.

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Mercedes is Trialing Humanoid Robots For 'Low Skill, Repetitive' Tasks

Par : msmash
15 mars 2024 à 19:00
Mercedes-Benz is the latest automotive company to trial how humanoid robots could be used to automate "low skill, physically challenging, manual labor." From a report: On Friday, robotics company Apptronik announced it had entered into a commercial agreement with Mercedes to pilot how "highly advanced robotics" like Apollo -- Apptronik's 160-pound bipedal robot -- can be used in manufacturing. The news follows a similar pilot announced by BMW in January. Apptronik says that Mercedes is exploring use cases like having Apollo inspect and deliver components to human production line workers. Neither company has disclosed any figures for the agreement or how many Apollo robots are being trialed. According to Apptronik, humanoid robots would allow vehicle manufacturers to start automating manufacturing tasks without having to redesign their existing facilities. The company says its approach instead "centers on automating some physically demanding, repetitive and dull tasks for which it is increasingly hard to find reliable workers."

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Microsoft is Once Again Asking Chrome Users To Try Bing Through Unblockable Pop-ups

Par : msmash
15 mars 2024 à 19:35
Microsoft has been pushing Bing pop-up ads in Chrome on Windows 10 and 11. The new ad once again encourages Chrome users (in bold lettering) to use Bing instead of Google search. From a report: "Chat with GPT-4 for free on Chrome! Get hundreds of daily chat turns with Bing Al," the ad reads. If you click "Yes," the pop-up will install the "Bing Search" Chrome extension while making Microsoft's search engine the default. If you click "Yes" on the ad to switch to Bing, a Chrome pop-up will appear, asking you to confirm that you want to change the browser's default search engine. "Did you mean to change your search provider?" the pop-up asks. "The âMicrosoft Bing Search for Chrome' extension changed search to use bing.com,'" Chrome's warning states. Directly beneath that alert, seemingly in anticipation of Chrome's pop-up, another Windows notification warns, "Wait -- don't change it back! If you do, you'll turn off Microsoft Bing Search for Chrome and lose access to Bing Al with GPT-4 and DALL-E 3. Select Keep it to stay with Microsoft Bing."

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Sam Bankman-Fried Deserves 40-50 Years in Prison For FTX Fraud, Prosecutors Say

Par : msmash
15 mars 2024 à 20:10
Sam Bankman-Fried should spend between 40 and 50 years in prison after being convicted for stealing $8 billion from customers of his now-bankrupt FTX cryptocurrency exchange, prosecutors said on Friday. From a report: "His life in recent years has been one of unmatched greed and hubris; of ambition and rationalization; and courting risk and gambling repeatedly with other people's money," federal prosecutors in Manhattan wrote. "And even now Bankman-Fried refuses to admit what he did was wrong." A jury found Bankman-Fried, 32, guilty in November on seven counts of fraud and conspiracy. Lawyers for the former billionaire told U.S. District Judge Lewis Kaplan that a 5-1/4 to 6-1/2 year prison term would be appropriate. They said FTX clients would get most of their money back, and that Bankman-Fried did not set out to steal. Kaplan is scheduled to sentence Bankman-Fried on March 28 in Manhattan federal court. Bankman-Fried plans to appeal his conviction and sentence.

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India Drops Plan To Require Approval For AI Model Launches

Par : BeauHD
15 mars 2024 à 20:50
An anonymous reader quotes a report from TechCrunch: India is walking back on a recent AI advisory after receiving criticism from many local and global entrepreneurs and investors. The Ministry of Electronics and IT shared an updated AI advisory with industry stakeholders on Friday that no longer asked them to take the government approval before launching or deploying an AI model to users in the South Asian market. Under the revised guidelines, firms are instead advised to label under-tested and unreliable AI models to inform users of their potential fallibility or unreliability. The March 1 advisory also marked a reversal from India's previous hands-off approach to AI regulation. Less than a year ago, the ministry had declined to regulate AI growth, identifying the sector as vital to India's strategic interests. The new advisory, like the original earlier this month, hasn't been published online, but TechCrunch has reviewed a copy of it. The ministry said earlier this month that though the advisory wasn't legally binding, it signals that it's the "future of regulation" and that the government required compliance. The advisory emphasizes that AI models should not be used to share unlawful content under Indian law and should not permit bias, discrimination, or threats to the integrity of the electoral process. Intermediaries are also advised to use "consent popups" or similar mechanisms to explicitly inform users about the unreliability of AI-generated output. The ministry has retained its emphasis on ensuring that deepfakes and misinformation are easily identifiable, advising intermediaries to label or embed content with unique metadata or identifiers. It no longer requires firms to devise a technique to identify the "originator" of any particular message.

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Walmart Begins Selling the Mac For the First Time

Par : msmash
15 mars 2024 à 21:30
Walmart is teaming up with Apple to sell the Mac for the first time. From a report: In a press release today, the company said that it is now selling the base model M1 MacBook Air online and in select stores for $699. The move comes a week after Apple introduced the new M3 MacBook Air and stopped selling the M1 MacBook Air itself. While Walmart has historically sold Apple devices like the iPhone, iPad, and Apple Watch, it has never sold Macs directly. Instead, it's relied on third-party partners to sell the Mac through its online marketplace.

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FTC Goes Undercover Against Fake Antivirus Companies

Par : msmash
15 mars 2024 à 22:10
The Federal Trade Commission (FTC) filed a legal complaint against two companies based in Cyprus on Wednesday that it claims are behind a wave of malicious pop-ups that trick people into downloading a fake piece of antivirus software that generated tens of millions of dollars for its operators, according to court records. From a report: The scam also involved misrepresenting results on malware repository VirusTotal as infections on the user's own computer. (Update: after the publication of this piece the FTC announced that Restoro and Reimage will pay $26 million to settle the FTC's charges.) The move is the latest from the FTC in a series of actions in the privacy and cybersecurity space. In January, the FTC banned a data broker called X-Mode from selling sensitive location data after I revealed it was harvesting location data from Muslim prayer and dating apps. In this case, the FTC says it went "undercover" against the two related companies, called Restoro and Reimage, to buy the deceiving software and have phone calls with company representatives. "Since at least January 2018, Defendants have operated a tech support scheme that has bilked tens of millions of dollars from consumers, particularly older consumers," the FTC's complaint reads. The complaint is seeking a permanent injunction against the two companies as well as monetary relief.

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After 114 Days of Change, Broadcom CEO Acknowledges VMware-Related 'Unease'

Par : BeauHD
15 mars 2024 à 22:50
In a blog post Thursday, Broadcom CEO and President Hock Tan acknowledged the discomfort VMware customers and partners have experienced after the sweeping changes that Broadcom has instituted since it acquired the company nearly four months ago. "Of course, we recognize that this level of change has understandably created some unease among our customers and partners," writes Tan. "But all of these moves have been with the goals of innovating faster, meeting our customers' needs more effectively, and making it easier to do business with us." Ars Technica reports: Tan believes that the changes will ultimately "provide greater profitability and improved market opportunities" for channel partners. However, many IT solution provider businesses that were working with VMware have already been disrupted. For example, after buying VMware, Broadcom took over the top 2,000 VMware accounts from VMware channel partners. In a March earnings call, Tan said that Broadcom has been focused on upselling those customers. He also said Broadcom expects VMware revenue to grow double-digits quarter over quarter for the rest of the fiscal year. [...] In his blog post, Tan defended the subscription-only licensing model, calling it "the industry standard." He said VMware started accelerating its transition to this strategy in 2019, (which is before Broadcom bought VMware). He also linked to a February blog post from VMware's Prashanth Shenoy, VP of product and technical marketing for the Cloud, Infrastructure, Platforms, and Solutions group at VMware, that also noted acquisition-related "concerns" but claimed the evolution would be fiscally prudent.

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Lyft and Uber To Cease Operations In Minneapolis After New Minimum Wage Law

Par : BeauHD
15 mars 2024 à 23:30
The city council of Minneapolis on Thursday voted 10-3 to allow rideshare drivers to be paid the local minimum wage of $15.57 an hour, overriding the mayor's veto of the bill. As a result, Lyft and Uber said they will cease operations in the city. From a report: Lyft said in a statement the bill was "deeply flawed" and that the ordinance makes its "operations unsustainable." "We support a minimum earning standard for drivers, but it should be done in an honest way that keeps the service affordable for riders," said a Lyft spokesperson. Uber said in a statement obtained by CNN that it's "disappointed the council chose to ignore the data and kick Uber out of the Twin Cities, putting 10,000 people out of work and leaving many stranded." The ordinance mandates rideshare drivers make at least $1.40 per mile and $0.51 per minute within Minneapolis. However, the analysis Frey referred to showed lower numbers -- $0.89 per mile and $0.49 per minute -- to make minimum wage. The mayor is imploring local politicians to come up with a solution before May 1. The rideshare services say that user prices would double if they stayed in the city.

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McDonald's IT Systems Outage Shuts Some Restaurants Globally

Par : BeauHD
16 mars 2024 à 00:10
An anonymous reader quotes a report from BleepingComputer: McDonald's restaurants are suffering global IT outages that prevent employees from taking orders and accepting payments, causing some stores to close for the day. The outages started overnight and are impacting restaurants globally, including those in the USA, Japan, Australia, Canada, the Netherlands, Italy, New Zealand, and the UK. "We are aware of a technology outage, which impacted our restaurants; the issue is now being resolved," McDonald's said in a statement to BleepingComputer. "We thank customers for their patience and apologize for any inconvenience this may have caused. Notably, the issue is not related to a cybersecurity event." In an updated statement, McDonald's says that the outage was caused by a third-party provider during a configuration change. "Many markets are back online, and the rest are in the process of coming back online. This issue was not directly caused by a cybersecurity event; rather, it was caused by a third-party provider during a configuration change."

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