Slashdot Mirror

Hugh Pickens writes "Rebecca Greenfield writes that during their recent earnings call, Google reported a 16 percent decline in Cost-per-Click (CPC), meaning the value of each advertisement clicked has gone down. This follows a 12 percent drop last quarter and 8 percent the quarter before that showing an unfortunate reality of online advertising — unlike the print world, internet ads lose value over time. The daily and stubborn reality for everybody building businesses on the strength of Web advertising is that the value of digital ads decreases every quarter, a consequence of their simultaneous ineffectiveness and efficiency, writes Michael Wolff. 'The nature of people's behavior on the Web and of how they interact with advertising, as well as the character of those ads themselves and their inability to command attention, has meant a marked decline in advertising's impact.' This isn't just Google's problem. Overall, Internet advertising has decreased in value over the years as online advertising continues its race to the bottom. 'I don't know anyone in the ad-supported Web business who isn't engaged in a relentless, demoralizing, no-exit operation to realign costs with falling per-user revenues,' adds Wolff, 'or who isn't manically inflating traffic to compensate for ever-lower per-user value.' For Google's overall business, this loss doesn't mean as much, since it has since expanded its business beyond AdWords — including its recent acquisition of Motorola. For companies that didn't just buy big hardware companies however, it's a scarier proposition. Like Facebook, for example."

wisebabo writes "I think it was Newton who said if you knew the position and velocity of every particle in the universe, you could predict the future down to the effect the flutter of a sparrow's wing would have on the weather. Aside from quantum indeterminacy (which, of course, he knew nothing about) and questions of free will, it is clear we are a long long way from getting even close to the theoretical limits of prediction. Still, here's something that, to me, is very impressive. Some researchers manage to track raindrops (or snowflakes) in front of a light and, in real time, change the beam so that they are not illuminated! This drastically reduces glare. The obvious application is for driving cars in inclement weather. I'm hoping we're entering a new age where computers (and cheap sensors) have become so powerful as to make possible a whole host of 'magical' (like Arthur C. Clarke predicted) applications."

MrSeb writes "Researchers from Texas A&M University claim to have pioneered unbreakable cryptography based on the laws of thermodynamics; classical physics, rather than quantum. In theory, quantum crypto (based on the laws of quantum mechanics) can guarantee the complete secrecy of transmitted messages: To spy upon a quantum-encrypted message would irrevocably change the content of the message, thus making the messages unbreakable. In practice, though, while the communication of the quantum-encrypted messages is secure, the machines on either end of the link can never be guaranteed to be flawless. According to Laszlo Kish and his team from Texas A&M, however, there is a way to build a completely secure end-to-end system — but instead of using quantum mechanics, you have to use classical physics: the second law of thermodynamics, to be exact. Kish's system is made up of a wire (the communication channel), and two resistors on each end (one representing binary 0, the other binary 1). Attached to the wire is a power source that has been treated with Johnson-Nyquist noise (thermal noise). Johnson noise is often the basis for creating random numbers with computer hardware."

holy_calamity writes "Technology Review has an in depth profile of the team at Facebook tasked with figuring out what can be learned from all our data. The Data Science Team mine that information trove both in the name of scientific research into the patterns of human behavior and to advance Facebook's understanding of its users. Facebook's ad business gets the most public attention, but the company's data mining technology may have a greater effect on its destiny — and users lives."

holy_calamity writes "Technology Review has an in depth profile of the team at Facebook tasked with figuring out what can be learned from all our data. The Data Science Team mine that information trove both in the name of scientific research into the patterns of human behavior and to advance Facebook's understanding of its users. Facebook's ad business gets the most public attention, but the company's data mining technology may have a greater effect on its destiny — and users lives."

IBM has forbidden its employees from using cloud-based services such as Siri, Dropbox and iCloud, according to reports. These products (along with many others) are presenting a challenge to IT administrators who want to keep their organizations secure, as well as to consumer-software developers who suddenly need to build features with both consumers and businesses in mind.

bonch writes "Autoparts manufacturer Delphi has developed a diesel-like ignition engine running on gasoline, providing a potential 50 percent efficiency improvement over existing gas-powered engines. Engineers have long sought to run diesel-like engines on gasoline for its higher efficiency and low emissions. Delphi's engine, using a technique called gasoline-direct-injection compression ignition, could rival the performance of hybrid automobiles at a cheaper cost."

MrSeb writes "Chinese physicists are reporting that they've successfully teleported photonic qubits (quantum bits) over a distance of 97 kilometers (60mi). This means that quantum data has been transmitted from one point to another, without passing through the intervening space. It's important to note that the Chinese researchers haven't actually made a photon disappear and reappear 97 kilometers away; rather, they've used quantum entanglement to recreate the same qubit in a new location, with the same subatomic properties as the original qubit. The previous record for transmitting entangled qubits was 16 kilometers, performed by another Chinese team back in 2010 — and perhaps most excitingly, the researchers seem confident that their system will scale up from 97km to distances capable of reaching orbital satellites, at which point we'll actually be able to build a global quantum network for all of our cryptographic needs."

itwbennett writes "Neal Stephenson is shouldering some of the blame for discouraging budding scientists and engineers, saying in a interview that perhaps the dark turn science fiction has taken is 'discouraging budding scientists and engineers.' For his part, Stephenson has vowed to be more optimistic. From the article: 'Speaking before a packed lecture theater at MIT yesterday, Neal Stephenson worried that the gloomy outlook prevalent in modern science fiction may be undermining the genre's ability to inspire engineers and scientists. Describing himself as a "pessimist trying to turn himself into an optimist," and acknowledging that some of his own work has contributed to the dystopian trend, he added "if every depiction of the future is grim...then it doesn't create much of an incentive to building the future."'"

Hugh Pickens writes "About 65 million years ago, Earth was struck by an asteroid some 10 km in diameter with a mass of well over a trillion tonnes that created megatsunamis, global wildfires ignited by giant clouds of superheated ash, and the mass extinction of land-based life on Earth. Now astrobiologists have begun to study a less well known consequence: the ejection of billions of tons of life-bearing rocks and water into space that has made its way not just to other planets but other solar systems as well. Calculations by Tetsuya Hara and his colleagues at Kyoto Sangyo University in Japan show that a surprisingly large amount of life-bearing material ended up not on the Moon and Mars, as might be expected, but the Jovian moon Europa and the Saturnian moon Enceladus also received tons of life-bearing rock from earth. Even more amazingly, calculations suggest that most Earth ejecta ended up in interstellar space and some has probably already arrived at Earth-like exoplanets orbiting other stars. Hara estimates that about a thousand Earth-rocks from this event would have made the trip to Gliese 581, a red dwarf some 20 light years away that is thought to have a super-Earth orbiting at the edge of the habitable zone, taking about a million years to reach its destination. Of course, nobody knows if microbes can survive that kind of journey or even the shorter trips to Europa and Enceladus. But Hara says that if microbes can survive that kind of journey, they ought to flourish on a super-Earth in the habitable zone (PDF). 'If we consider the possibility that the fragmented ejecta (smaller than 1cm) are accreted to comets and other icy bodies, then buried fertile material could make the interstellar journey throughout the Galaxy,' writes Hara. 'Under these circumstances fragments could continue the interstellar journey and Earth origin meteorites could be transferred to Gl 581 system. If we take it as viable, we should consider the panspermia theories more seriously.'"

Taco Cowboy writes "Here comes a chip that can pinpoint you in-door and out, it can even tell others on which floor of a building you are located. It's the Broadcom 4752 chip. It takes signals from global navigation satellites, cell phone towers, and Wi-Fi hot spots, coupled with input from gyroscopes, accelerometers, step counters, and altimeters The company calls abilities like this 'ubiquitous navigation,' and the idea is that it will enable a new kind of e-commerce predicated on the fact that shopkeepers will know the moment you walk by their front door, or when you are looking at a particular product, and can offer you coupons at that instant."

cold fjord writes "Red wine is a popular marinade for meat, but it also may become a popular treatment for creating iron-based superconductors as well (Link to academic paper): 'Last year, a group of Japanese physicists grabbed headlines around the world by announcing that they could induce superconductivity in a sample of iron telluride by soaking it in red wine. They found that other alcoholic drinks also worked — white wine, beer, sake and so on — but red wine was by far the best. The question, of course, is why. What is it about red wine that does the trick? Today, these guys provide an answer — at least in part. Keita Deguchi at the National Institute for Materials Science in Tsukuba, Japan, and a few buddies, say the mystery ingredient is tartaric acid and have the experimental data to show that it plays an important role in the process. ... It turns out the best performer is a wine made from the gamay grape — for the connoisseurs, that's a 2009 Beajoulais from the Paul Beaudet winery in central France.'"

zrbyte writes "A growing number of complexity theorists are beginning to recognize some potential problems with cloud computing. The growing consensus is that bizarre and unpredictable behavior often emerges in systems made up of 'networks of networks,' such as a business using the computational resources of a cloud provider. Bryan Ford at Yale University in New Haven says the full risks of the migration to the cloud have yet to be properly explored. He points out that complex systems can fail in many unexpected ways, and he outlines various simple scenarios in which a cloud could come unstuck."

holy_calamity writes "This article talks about software from Microsoft Research that looks like a smarter, more private version of Facebook's timeline. Lifebrowser uses machine learning techniques to process photos, emails, web history, documents and other data on your computer and automatically create an interactive timeline with an awareness of what's important and what's not. Lifebrowser is intended to be a prosthetic for memory. When a user searches their archive for specific information, Lifebrowser presents notable photos and other information to aid recollection."

holy_calamity writes "This article talks about software from Microsoft Research that looks like a smarter, more private version of Facebook's timeline. Lifebrowser uses machine learning techniques to process photos, emails, web history, documents and other data on your computer and automatically create an interactive timeline with an awareness of what's important and what's not. Lifebrowser is intended to be a prosthetic for memory. When a user searches their archive for specific information, Lifebrowser presents notable photos and other information to aid recollection."

MrSeb writes "Twin Creeks, a solar power startup that emerged from hiding today, has developed a way of creating photovoltaic cells that are half the price of today's cheapest cells, and thus within reach of challenging the fossil fuel hegemony. As it stands, almost every solar panel is made by slicing a 200-micrometer-thick (0.2mm) wafer from a block of crystalline silicon. You then add some electrodes, cover it in protective glass, and leave it in a sunny area to generate electricity through the photovoltaic effect. There are two problems with this approach: Much in the same way that sawdust is produced when you slice wood, almost half of the silicon block is wasted when it's cut into 200-micrometer slices; and second, the panels would still function just as well if they were thinner than 200 micrometers, but silicon is brittle and prone to cracking if it's too thin. Using a hydrogen ion particle accelerator, Twin Creeks has managed to create very thin (20-micrometer), flexible photovoltaic cells that can be produced for just 40 cents per watt; around half the cost of conventional solar cells, and a price point that encroaches on standard, mostly-hydrocarbon-derived grid power."

MrSeb writes about a really cool project from Microsoft's speech research group. From the article: "Microsoft Research has shown off software that translates your spoken words into another language while preserving the accent, timbre, and intonation of your actual voice. In a demo of the prototype software, Rick Rashid, Microsoft's chief research officer, said a long sentence in English, and then had it translated into Spanish, Italian, and Mandarin. You can definitely hear an edge of digitized 'Microsoft Sam,' but overall it's remarkable how the three translations still sound just like Rashid. The translation requires an hour of training, but after that there's no reason why it couldn't be run in real time on a smartphone, or near-real-time with a cloud backend. Imagine this tech in a two-way setup. You speak into your smartphone, and it comes out in their language. Then, the person you're talking to speaks into your smartphone and their voice comes out in your language." The Techfest 2012 keynote has a demo of the technology around minute 13:00.

An anonymous reader sends this excerpt from MIT's Technology Review: "A new blob-like robot described in the journal Advanced Robotics uses springs, feet, 'protoplasm' and a distributed nervous system to move in a manner inspired by the slime mold Physarum polycepharum. ... Researcher Takuya Umedachi of Hiroshima University has been perfecting his blob-bot for years, starting with early prototypes that used springs but lacked an air-filled bladder. ... Umedachi modeled his latest version on the 'true' slime mold, which has been shown to achieve a 'human-like' decision-making capacity through properties emerging from the interactions of its individual spores (abstract). Slime molds appear to have general computational abilities, and you've probably heard that they can solve mazes."

eldavojohn writes "A very lengthy and somewhat meandering essay from Crista Videira Lopes has sparked off some discussion of where new programming languages come from. She's writing from the viewpoint of academia, under the premise that new languages don't come from academia. And they've been steadily progressing outside of large companies (with the exception of Java and .NET) into the bedrooms and hobbies of people she identifies as 'designers' or 'lone programmers' instead of groups of 'researchers.' Examples include PHP by Rasmus Lerdorf, JavaScript by Brenden Eich, Python by Guido van Rossum and — of course — Ruby by Yukihiro Matsumoto. The author notes that, as we escape our computational and memory bounds that once plagued programming languages in the past and marred them with ultra efficient syntax in the name of hardware, our new languages are coming from designers with seemingly little worry about the budget CPU being able to handle a large project in the new language. The piece is littered with interesting assertions like 'one striking commonality in all modern programming languages, especially the popular ones, is how little innovation there is in them!' and 'We require scientific evidence for the claimed value of experimental drugs. Should we require scientific evidence for the value of experimental software?' Is she right? Is the answer to studying modern programming languages to quantify their design as she attempts in this post? Given the response of Slashdot to Google's Dart it would appear that something is indeed missing in coercing developers that a modern language has valid offerings worthy of their time."

braindrainbahrain writes "Coincidence or conspiracy? Two new science fiction magazines have just been announced and they are both being published by more serious science publications. New Scientist magazine has announced the publication of Arc, 'A new digital magazine about the future.' Arc features such articles as 'The best time travel movie ever made' and 'The future of science fiction, games, galleries — and futurism.' They are advertising new fact and fiction from the likes of Maragret Atwood and Alastair Reynold. The MIT Technology Review has announced the TRSF, dubbed 'the first installment of a to-be-annual "hard" SF collection.' Some authors: Joe Haldeman and Cory Doctorow. As an interesting note, both publications will be printed on paper for the first ('collectable') issue only; all forthcoming ones will be e-books."

braindrainbahrain writes "Coincidence or conspiracy? Two new science fiction magazines have just been announced and they are both being published by more serious science publications. New Scientist magazine has announced the publication of Arc, 'A new digital magazine about the future.' Arc features such articles as 'The best time travel movie ever made' and 'The future of science fiction, games, galleries — and futurism.' They are advertising new fact and fiction from the likes of Maragret Atwood and Alastair Reynold. The MIT Technology Review has announced the TRSF, dubbed 'the first installment of a to-be-annual "hard" SF collection.' Some authors: Joe Haldeman and Cory Doctorow. As an interesting note, both publications will be printed on paper for the first ('collectable') issue only; all forthcoming ones will be e-books."

An anonymous reader writes "Technology Review reports on a startup with software used by stores to track, count and log people captured by security cameras. Prism Skylab's technology can produce heatmaps showing where people went and produce other statistics that the company claims offer tracking and analytics like those used online for the real world. One use case is for businesses to correlate online promotions and deals — such as Groupon offers — with real world footfall and in-store behavior."

Freddybear writes "A study of online gamers in the Steam community finds that those who are friends with cheaters are more likely to begin cheating themselves. From the article: 'First up, cheats stick together. The data shows that cheaters are much more likely to be friends with other cheaters. Cheating also appears to be infectious. The likelihood of a fair player becoming labelled as a cheater in future is directly correlated with this person's number of friends who are cheaters. So if you know cheaters, you are more likely to become one yourself. Cheating spreads like flu through this community. Finally, being labelled as a cheat seems to significantly affect social standing. Once a person is labelled as a cheat, they tend to lose friends. Some even cut themselves off from friends by increasing their privacy settings.'"

bonch writes "After a historical reputation for not monetizing breakthrough technologies (including the mouse and desktop GUI), Xerox PARC is now focused on making money from its inventions. CEO Anne Mulcahy vowed in 2001 to return the company to profitability, encouraging 'open innovation' and mandating that research turned a profit. The latest innovation is thin-film printed electronics, intended for a variety of products, from RFID readers to price labels."

holy_calamity writes "Intel is making another assault on the mobile processor market, showing off a prototype phone and a tablet using its newest mobile processor Medfield. The company claims that products based on the chips will appear in the first half of next year. There's reason to believe that Intel might get somewhere this time. Its chipsets traditionally comprise three separate chips, a design that guzzles power. Medfield introduces an all-in-one chip, mirroring the power efficient design of the ARM-based chips that run smart phones and tablets in the market today."

holy_calamity writes "Intel is making another assault on the mobile processor market, showing off a prototype phone and a tablet using its newest mobile processor Medfield. The company claims that products based on the chips will appear in the first half of next year. There's reason to believe that Intel might get somewhere this time. Its chipsets traditionally comprise three separate chips, a design that guzzles power. Medfield introduces an all-in-one chip, mirroring the power efficient design of the ARM-based chips that run smart phones and tablets in the market today."

New submitter bowlinearl writes "Three weeks ago Slashdot featured a story on the Chinese Water Army. A new study from researchers at UCSB delves even deeper into the problem of crowdturfing (full disclosure: I am one of the authors of the study). The study reveals that evil crowdsourcing services in China are a multi-million dollar industry, and that the number of jobs and the amount of money are growing exponentially. Hundreds of thousands of workers are involved, including a small contingent of career crowdturfers who each manage hundreds of accounts on social networks. The researchers observed the behavior of workers and the unwitting users who click on the generated spam by infiltrating the two largest crowdsourcing sites in China. However, crowdturfing isn't confined to China: the researchers discovered crowdsourcing sites in the U.S. that are 95% astroturf, as opposed to Amazon's Mechanical Turk, which actively polices itself, and is only 12% astroturf."

thecarchik writes "While electric-car advocates may avoid the issue, some buyers simply won't choose a plug-in car that can't travel unlimited distances. That's where the Chevy Volt-style range extender comes in, though the Volt adds unlimited range by burning gasoline in a conventional engine to generate electric power. Now, a new type of fuel cell offers the potential for a different kind of range extender, one that removes the enormous practical problem facing hydrogen fuel cells: the lack of a distribution infrastructure to fuel vehicles that require pure hydrogen to feed their fuel cells. Researchers at the University of Maryland have managed to shrink the size and lower the operating temperature of a solid-oxide fuel cell by a factor of 10, meaning it could conceivably produce as much power as a car engine but occupy less space. The advances come from new materials for the solid electrolyte, as well as design changes, and the researchers feel they have further avenues for improvement left to explore."

holy_calamity writes "For several years, we've followed the progress of IBM's revolutionary 'racetrack' memory, which stores data inside nanowires for several years. Now Big Blue has made the first prototype integrated onto a single chip, using the CMOS processing technique used in commercial chip fabs. It's still a research prototype, but goes some way to validate IBM's claim that the technology could be commercialized."

holy_calamity writes "For several years, we've followed the progress of IBM's revolutionary 'racetrack' memory, which stores data inside nanowires for several years. Now Big Blue has made the first prototype integrated onto a single chip, using the CMOS processing technique used in commercial chip fabs. It's still a research prototype, but goes some way to validate IBM's claim that the technology could be commercialized."

New submitter kermidge sends in an article at the Physics arXiv blog about what's called the "Internet Water Army," large groups of people in China who are paid to "flood" internet sites with comments and reviews about various products. Researchers at the University of Victoria went undercover to figure out exactly how these informational (or disinformational) floods operate, and what they learned (PDF) could lead to better spam-detection software. Quoting: "They discovered that paid posters tend to post more new comments than replies to other comments. They also post more often with 50 per cent of them posting every 2.5 minutes on average. They also move on from a discussion more quickly than legitimate users, discarding their IDs and never using them again. What's more, the content they post is measurably different. These workers are paid by the volume and so often take shortcuts, cutting and pasting the same content many times. This would normally invalidate their posts but only if it is spotted by the quality control team. So Cheng and co built some software to look for repetitions and similarities in messages as well as the other behaviors they'd identified. They then tested it on the dataset they'd downloaded from Sina and Sohu and found it to be remarkably good, with an accuracy of 88 per cent in spotting paid posters."

holy_calamity writes "Technology Review has an update on a screen technology from Qualcomm called Mirasol that delivers LCD-like colors and video but sips power like e-ink. Demonstration Android tablets with 5.7 inch Mirasol displays apparently held up well in bright light and were responsive enough for gaming. Qualcomm are in the process of building a $1 billion new factory to make the screens, which should appear in devices from phone and tablet makers next year."

holy_calamity writes "Technology Review has an update on a screen technology from Qualcomm called Mirasol that delivers LCD-like colors and video but sips power like e-ink. Demonstration Android tablets with 5.7 inch Mirasol displays apparently held up well in bright light and were responsive enough for gaming. Qualcomm are in the process of building a $1 billion new factory to make the screens, which should appear in devices from phone and tablet makers next year."

eldavojohn writes "Helium white dwarf stars are now theorized to produce a new kind of quasiparticle that would explain a known temperature anomaly between helium white dwarfs and vanilla white dwarfs (lumps of charcoal). Since helium can form a Bose-Einstein condensate and there are extra constraints inside such a dense object, a new quasiparticle emerges. Researchers' models claim it 'reduces the specific heat of the white dwarf core by two orders of magnitude compared to a crystalline core.' But even with that figured in, measurements of some nearby ancient helium white dwarfs show that they don't fit the specific temperature curve exactly. So, some questions remain, with the possible explanation that these stars undergo internal transition late in their age. The heavy reading is available on the prepublication site arXiv."

wjousts writes "A interesting take on the birth of the Xbox from Technology Review: 'When the original Xbox video-game console went on sale in 2001, it wasn't clear why Microsoft, known for staid workplace software, was branching out into fast-paced action games. But Microsoft decided that capitalizing on the popularity of gaming could help the company position itself for the coming wave of home digital entertainment. "Microsoft saw the writing on the wall," says David Dennis, a spokesman for Xbox. "It wanted to have a beachhead in the living room." ... Now Microsoft is linking Xbox 360, its most successful consumer-focused brand, with others that have not been as well received. It is integrating Bing, its search engine, into Xbox and Xbox Live to enable people to search for multimedia content. By the end of the year, Microsoft is expected to unveil an updated Xbox Live design that is more in line with the look of Windows phones and the forthcoming Windows 8.'"

djeps sends in this excerpt from the Physics arXiv Blog: "Japanese scientists have built a cellular automaton from individual molecules that carries out huge numbers of calculations in parallel. ... At the heart of their experiment is a ring-like molecule called 2,3-dichloro-5,6-dicyano-p-benzoquinone, or DDQ. This has an unusual property: it can exist in four different conducting states, depending on the location of trapped electrons around the ring. What's more, it's possible to switch the molecule from one to state to another by zapping it with voltages of various different strengths using the tip of a scanning tunnelling microscope. It's even possible to bias the possible states that can form by placing the molecule in an electric field. Place two DDQ molecules next to each other and it's possible to make them connect. ... When one molecule changes its state, the change in configuration ripples from one molecule to the next, forming and reforming circuits as it travels."

NicknamesAreStupid writes "The NYTimes reports on a book by Erik Brynjolfsson and Andrew P. McAfee (MIT director-level staffers), Race Against the Machine, which suggests that the true threat to jobs is not outsourcing — it's the machine! Imagine the Terminator flipping burgers, cleaning your house, approving your loan, handling your IT questions, and doing your job faster, better, and more cheaply. Now that's an apocalypse with a twist — The Job Terminator." Reader wjousts points out another of the authors' arguments: that IT advances have cost more jobs than they've created.

holy_calamity writes "Developers want to know when their apps will be able to connect to Siri, the virtual assistant built into the new iPhone 4S. Technology Review reports that providing APIs for Siri would not only make it possible to control apps with casual voice commands, but could also make Siri smarter if it is connected with other AI services able to do things like make very specific restaurant recommendations based on a person's past actions."

holy_calamity writes "Developers want to know when their apps will be able to connect to Siri, the virtual assistant built into the new iPhone 4S. Technology Review reports that providing APIs for Siri would not only make it possible to control apps with casual voice commands, but could also make Siri smarter if it is connected with other AI services able to do things like make very specific restaurant recommendations based on a person's past actions."

First time accepted submitter afree87 writes "A re-analysis of historical observations at a Mexican observatory suggests Earth narrowly avoided an extinction event just over a hundred years ago. On August 12th and 13th 1883, an astronomer at a small observatory in Zacatecas in Mexico made an extraordinary observation, some 450 objects, each surrounded by a kind of mist, passing across the face of the Sun. This month, Hector Manterola at the National Autonomous University of Mexico suggests these were fragments of a comet. 'If they had collided with Earth we would have had 3275 Tunguska events in two days, probably an extinction event.'"

holy_calamity writes "AT&T is adopting technology that gives a person with an Android device two user profiles, enabling company email and other data to reside in an encrypted partition separate from a user's apps, games and unfettered web browsing. AT&T is calling the feature Toggle, and plans to release it later this year. Toggle is a regular app that, once installed, creates its own encrypted desktop under the control of company IT bosses. Toggle is a rebranding of an app developed by startup Enterproid, which continues to develop its own version. AT&T think this move will encourage smartphone adoption in the enterprise. Interestingly, Apple's current version of iOS and app guidelines exclude multiple profiles on one device."

holy_calamity writes "AT&T is adopting technology that gives a person with an Android device two user profiles, enabling company email and other data to reside in an encrypted partition separate from a user's apps, games and unfettered web browsing. AT&T is calling the feature Toggle, and plans to release it later this year. Toggle is a regular app that, once installed, creates its own encrypted desktop under the control of company IT bosses. Toggle is a rebranding of an app developed by startup Enterproid, which continues to develop its own version. AT&T think this move will encourage smartphone adoption in the enterprise. Interestingly, Apple's current version of iOS and app guidelines exclude multiple profiles on one device."

holy_calamity writes "Slashdot noted in September that Google had bought 1023 patents from IBM. Now IP analytics firms IPVision says they're a 'mixed bag' of mostly unrelated patents that won't be much use in defending against competitors such as Microsoft or Apple. Patents are most useful when they are tightly linked into clusters by references, such that they cover every angle on an idea, something Google's new collection lacks."

holy_calamity writes "Slashdot noted in September that Google had bought 1023 patents from IBM. Now IP analytics firms IPVision says they're a 'mixed bag' of mostly unrelated patents that won't be much use in defending against competitors such as Microsoft or Apple. Patents are most useful when they are tightly linked into clusters by references, such that they cover every angle on an idea, something Google's new collection lacks."

New submitter kodiaktau writes "A recently presented paper discusses how large data sets can improve learning algorithms, but points out that researchers still need to account for bias and incompleteness before drawing conclusions. The paper also goes into the need for responsible business practices to manage these data sets. 'There's been the emergence of a philosophy that big data is all you need. We would suggest that, actually, numbers don't speak for themselves.' The full paper is available through SSRN. Of particular importance is their assertion that even huge data sets can and will be affected by filters or the analyst who is interpreting it. '[Study co-author Kate Crawford] notes that many big data sets — particularly social data — come from companies that have no obligation to support scientific inquiry. Getting access to the data might mean paying for it, or keeping the company happy by not performing certain types of studies.'"

A few weeks back, we posted a story here that described Koomey's Law, which (in the spirit of Moore's Law) identifies a long-standing trend in computer technology. While Moore's prediction centers on the transistor density of microprocessors, Jonathan Koomey focuses instead on computing efficiency — in a nutshell, computing power per watt, rather than only per square nanometer. In particular, he asserts that the energy efficiency of computing doubles every 1.5 years. (He points out that calling this a "law" isn't his idea, or his doing — but it's sure a catchy turn of phrase.) Koomey has agreed to respond to your questions about his research and conclusions in the world of computing efficiency. Please observe the Slashdot interview guidelines: ask as many questions as you want, but please keep them to one per comment.

First time accepted submitter JimmyQS writes "The Cornell Creative Machines Lab, which brought us chatbots debating God and unicorns, has developed Endlessforms.com, a site using evolutionary algorithms and crowdsourcing to design objects that can be 3D printed in materials such as silver, steel or silicone. MIT's Technology Review says 'The rules EndlessForms uses to generate objects and their variants resemble those of developmental biology — the study of how DNA instructions unfold to create an entire living organism. [The Media Lab's Mediated Matter research group director Neri Oxman notes] that this could ultimately have an impact on design similar to the impact that blogs and social media have had on journalism, opening the field to the general public.' The New Scientist has a quick video tour."

Joining the ranks of accepted submitters, Beorytis writes "MIT Technology review reports on a recent paper by Stanford professor Dr. Jon Koomey, which claims to show that the energy efficiency of computing doubles every 1.5 years. Note that efficiency is considered in terms of a fixed computing load, a point soon to be lost on the mainstream press. Also interesting is a graph in a related blog post that really highlights the meaning of the 'fixed computing load' assumption by plotting computations per kWh vs. time. An early hobbyist computer, the Altair 8800 sits right near the Cray-1 supercomputer of the same era."

New submitter cartman writes "A substance found in brown algae, 'including the type which forms forests of giant kelp,' could be used to increase the storage capacity of batteries, according to scientists at Georgia Tech (abstract). The substance, called alginate, allows silicon particles in the anode to swell without damaging the anode, thereby increasing storage capacity of batteries by up to a factor of 10. 'The full potential of a silicon anode can't be exploited until researchers develop a matching cathode capable of handling the same amount of lithium ions. But even with existing cathodes, alginate-silicon anodes could increase the capacity of lithium-ion batteries by 30 to 40 percent, according to Yushin.'"

holy_calamity writes "The first computers with a von Neumann architecture, where a processor has access to RAM, appeared in the 1940s. Now the first quantum computing system with a von Neumann design has been made, at University of California Santa Barbara. Their quantum processor made up of two superconducting quantum bits can use a 2-bit "quantum RAM" to save entangled bit values into."