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Saturday November 18, 2017 @ 10:24:22 AM mt

Study of 500000 Teens Suggests Association Between Excessive Screen Time and Depression



An anonymous reader quotes a report from Motherboard: Depression and suicide rates in teenagers have jumped in the last decade -- doubling between 2007 and 2015 for girls -- and the trend suspiciously coincides with when smartphones became their constant companions. A recent study places their screen time around nine hours per day. Another study, published on Tuesday, suggests that suicide and depression could be connected to the rise of smartphones, and increased screen time. Around 58 percent more girls reported depression symptoms in 2015 than in 2009, and suicide rates rose 65 percent. Smack in the middle of that window of time, smartphones gained market saturation. In Twenge's new study, published in the journal Clinical Psychological Science, the researchers looked at two samples: a nationally representative survey by ongoing study "Monitoring the Future" out of the University of Michigan, which is administered annually to 8th, 10th, and 12th graders, and the Centers for Disease Control's Youth Risk Behavior Surveillance System, a sample of high school students administered by the CDC every other year. (Both surveys began in 1991.) Altogether, over 500,000 young people were included. The study authors examined trends in how teens used social media, the internet, electronic devices (including gaming systems and tablets), and smartphones, as well as how much time they spent doing non-screen activities like homework, playing sports, or socializing. Comparing these to publicly available data on mental health and suicide for these ages between 2010 and 2017 showed "a clear pattern linking screen activities with higher levels of depressive symptoms/suicide-related outcomes and non-screen activities with lower levels," the researchers wrote in the study. All activities involving screens were associated with higher levels of depression or suicide and suicidal thinking, and activities done away from a screen were not.

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Saturday November 18, 2017 @ 10:24:21 AM mt

Is Firefox 57 Faster Than Chrome



An anonymous reader quotes TechNewsWorld: Firefox is not only fast on startup -- it remains zippy even when taxed by multitudes of tabs. "We have a better balance of memory to performance than all the other browsers," said Firefox Vice President for Product Nick Nguyen. "We use 30 percent less memory, and the reason for that is we can allocate the number of processes Firefox uses on your computer based on the hardware that you have," he told TechNewsWorld. The performance improvements in Quantum could be a drink from the fountain of youth for many Firefox users' systems. "A significant number of our users are on machines that are two cores or less, and less than 4 gigabytes of RAM," Nguyen explained. Mashable ran JetStream 1.1 tests on the ability to run advanced web applications, and concluded that "Firefox comes out on top, but not by much. This means it's, according to JetStream, slightly better suited for 'advanced workloads and programming techniques.'" Firefox also performed better on "real-world speed tests" on Amazon.com and the New York Times' site, while Chrome performed better on National Geographic, CNN, and Mashable. Unfortunately for Mozilla, Chrome looks like it's keeping the top spot, at least for now. The only test that favors Quantum is JetStream, and that's by a hair. And in Ares-6 [which measures how quickly a browser can run new Javascript functions, including mathematical functions], Quantum gets eviscerated... Speedometer simulates user actions on web applications (specifically, adding items to a to-do list) and measures the time they take... When it comes to user interactions in web applications, Chrome takes the day... In reality, however, Quantum is no slug. It's a capable, fast, and gorgeous browser with innovative bookmark functionality and a library full of creative add-ons. As Mozilla's developers fine-tune Quantum in the coming months, it's possible it could catch up to Chrome. In the meantime, the differences in page-load time are slight at best; you probably won't notice the difference.

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Saturday November 18, 2017 @ 10:24:21 AM mt

iPhone X Owners Experience 'Crackling' or 'Buzzing' Sounds From Earpiece Speaker



MacRumors reports: A limited but increasing number of iPhone X owners claim to be experiencing so-called "crackling" or "buzzing" sounds emanating from the device's front-facing earpiece speaker at high or max volumes. Over two dozen users have said they are affected in a MacRumors discussion topic about the matter, while similar reports have surfaced on Twitter and Reddit since the iPhone X launched just over a week ago. On affected devices, the crackling sounds occur with any kind of audio playback, including phone calls, music, videos with sound, alarms, and ringtones. The issue doesn't appear to be limited to any specific iPhone X configuration or iOS version. "The speakerphone for an $1100 phone should be at least as good as it was on the iPhone 6 and 7," complained one user, "but instead, it's crackly, edgy and buzzy." "I believe we all knew the iPhone X would be highly scrutinized," writes Slashdot reader sqorbit, "but the reported problems appear to be stacking up."

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Saturday November 18, 2017 @ 04:26:22 AM mt

Walmart Says It's Preordered 15 of Tesla' New Semi Trucks



Soon after Tesla unveiled its new electric Semi Truck and Roadster 2.0, Walmart says it has preordered 15 of the trucks. The Verge notes that the deal was "likely in the works before Tesla unveiled its new truck to the public." From the report: The pilot is planned for the U.S. and Canada. Five of the preordered vehicles will be for Walmart's U.S. business, and 10 will be for its Canadian routes, the company said. Walmart's fleet has about 6,000 trucks. "We have a long history of testing new technology -- including alternative-fuel trucks -- and we are excited to be among the first to pilot this new heavy-duty electric vehicle," the company said in a statement. "We believe we can learn how this technology performs within our supply chain, as well as how it could help us meet some of our long-term sustainability goals, such as lowering emissions." Musk said the truck would enter production in 2019. JB Hunt Transport Services, a 56-year-old company based in Arkansas, also reserved "multiple" new Tesla trucks as well.

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Saturday November 18, 2017 @ 02:30:59 AM mt

A Stable Plasma Ring Has Been Created In Open Air For the First Time Ever



New submitter mrcoder83 shares a report from Futurism: Engineers from the California Institute of Technology (Caltech) have been able to create a stable plasma ring without a container. According to the Caltech press release, it's "essentially capturing lightning in a bottle, but without the bottle." This remarkable feat was achieved using only a stream of water and a crystal plate, made from either quartz and lithium niobate. The union of these tools induced a type of contact electrification known as the triboelectric effect. The researchers blasted the crystal plate with an 85-micron-diameter jet of water (narrower than a human hair) from a specially designed nozzle. The water hit the crystal plate with a pressure of 632.7 kilograms of force per centimeter (9,000 pounds per square inch), generating an impact velocity of around 305 meters per second (1,000 feet per second) -- as fast as a bullet from a handgun. Plasma was formed as a result of the creation of an electric charge when the water hit the crystal surface. The flow of electrons from the point of contact ionizes the molecules and atoms in the gas area surrounding the water's surface, forming a donut-shaped glowing plasma that's dozens of microns in diameter. Caltech posted a video of the plasma ring on their YouTube channel.

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Friday November 17, 2017 @ 08:43:32 PM mt

Apple's HomePod Gets Delayed Until 2018



Apple has reportedly delayed the release of its HomePod smart speaker until 2018. In a statement to The Verge, Apple says that it needs more time to work on the device. "We can't wait for people to experience HomePod, Apple's breakthrough wireless speaker for the home, but we need a little more time before it's ready for our customers," an Apple spokesperson said. "We'll start shipping in the U.S., UK and Australia in early 2018." From the report: The speaker was originally set to be released in December. Priced at $349, the HomePod is slated to take on higher-end sound systems like Sonos, as well as smart assistants like the Amazon Echo and Google Home. The cylindrical speaker features a seven-speaker array of tweeters, a four-inch subwoofer, and a six-microphone array, which puts it right on par spec-wise with the best speakers in its price range, but where it may fall short is Siri, which isn't really in the same class as Alexa or Google Assistant. That challenge is likely why Apple's focus at the launch of the HomePod back at WWDC in June was music first and smart features second.

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Friday November 17, 2017 @ 08:43:31 PM mt

FCC Approves Next-Gen ATSC 3.0 TV Standard



New submitter mikeebbbd writes: "U.S. regulators on Thursday approved the use of new technology that will improve picture quality on mobile phones, tablets and television, but also raises significant privacy concerns by giving advertisers dramatically more data about viewing habits," reports Reuters. ATSC3.0 will apparently make personal data collection and targeted ads possible. New TVs will be necessary, and broadcasters will need to transmit both ATSC 2.0 (the current standard) for 3 to 5 years before turning off the older system. For now, the conversion is voluntary. There appears to be no requirement (as there was when ATSC 2.0 came out) for low-cost adapter boxes to make older TVs work; once a channel goes ATSC 3.0-only, your old TV will not display it any more.

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Friday November 17, 2017 @ 08:43:30 PM mt

Massive US Military Social Media Spying Archive Left Wide Open In AWS S3 Buckets



An anonymous reader quotes a report from The Register: Three misconfigured AWS S3 buckets have been discovered wide open on the public internet containing "dozens of terabytes" of social media posts and similar pages -- all scraped from around the world by the U.S. military to identify and profile persons of interest. The archives were found by veteran security breach hunter UpGuard's Chris Vickery during a routine scan of open Amazon-hosted data silos, and these ones weren't exactly hidden. The buckets were named centcom-backup, centcom-archive, and pacom-archive. CENTCOM is the common abbreviation for the U.S. Central Command, which controls army operations in the Middle East, North Africa and Central Asia. PACOM is the name for U.S. Pacific Command, covering the rest of southern Asia, China and Australasia. "For the research I downloaded 400GB of samples but there were many terabytes of data up there," he said. "It's mainly compressed text files that can expand out by a factor of ten so there's dozens and dozens of terabytes out there and that's a conservative estimate." Just one of the buckets contained 1.8 billion social media posts automatically fetched over the past eight years up to today. It mainly contains postings made in central Asia, however Vickery noted that some of the material is taken from comments made by American citizens. The databases also reveal some interesting clues as to what this information is being used for. Documents make reference to the fact that the archive was collected as part of the U.S. government's Outpost program, which is a social media monitoring and influencing campaign designed to target overseas youths and steer them away from terrorism.

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Friday November 17, 2017 @ 08:43:29 PM mt

NVIDIA Launches Modded Collector's Edition Star Wars Titan Xp Graphics Card



MojoKid writes: NVIDIA just launched its fastest graphics card yet and this GPU is targeted at Star Wars fans. In concert with EA's official launch today of Star Wars Battlefront II, NVIDIA unveiled the new Star Wars Titan Xp Collector's Edition graphics card for enthusiast gamers. There are two versions of the cards available -- the Galactic Empire version and a Jedi Order version. Both of the cards feature customized coolers, shrouds, and lighting, designed to mimic the look of a lightsaber. They also ship in specialized packaging that can be used to showcase the cards if they're not installed in a system. The GPU powering the TITAN Xp Collector's Edition has a base clock of 1,481MHz and a boost clock of 1,582MHz. It's packing a fully-enabled NVIDIA GP102 GPU with 3,840 cores and 12GB of GDDR5X memory clocked at 5.5GHz for an effective data rate of 11Gbps, resulting in 547.2GB/s of peak memory bandwidth. At those clocks, the card also offers a peak texture fillrate of 379.75 GigaTexels/s and 12.1TFLOPs of FP32 compute performance, which is significantly higher than a GeForce GTX 1080 Ti. In the benchmarks, it's the fastest GPU out there right now (it better be for $1200), but this card is more about nostalgia and the design customizations NVIDIA made to the cards that should appeal to gamers and Star Wars fans alike.

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Friday November 17, 2017 @ 08:43:28 PM mt

'Robots Are Not Taking Over' Says Head of UN Body of Autonomous Weapons



An anonymous reader writes: Robots are not taking over the world," the diplomat leading the first official talks on autonomous weapons assured on Friday, seeking to head off criticism over slow progress towards restricting the use of so-called "killer robots." The United Nations was wrapping up an initial five days of discussions on weapons systems that can identify and destroy targets without human control, which experts say will soon be battle ready. "Ladies and gentlemen, I have news for you: the robots are not taking over the world. Humans are still in charge," said India's disarmament ambassador, Amandeep Gill, who chaired the CCW meeting. "I think we have to be careful in not emotionalizing or dramatizing this issue," he told reporters in response to criticism about the speed of the conference's work. Twenty-two countries, mostly those with smaller military budgets and lesser technical knowhow, have called for an outright ban, arguing that automated weapons are by definition illegal as every individual decision to launch a strike must be made by a human. Gill underscored that banning killer robots, or even agreement on rules, remained a distant prospect.

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