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Catch up on stories from the past week (and beyond) at the Slashdot story archive


Europeans Came From Three Ancestry Groupings

Posted by samzenpus , from the back-in-the-day dept.
Taco Cowboy writes A recent study by researchers at Harvard Medical School and the University of Tübingen in Germany has found that present day Europeans are descendants of three different groups of people — A near east farmer group, an indigenous hunter gatherer group, and an ancient North Eurasian group from Siberia. "Nearly all Europeans have ancestry from all three ancestral groups," said Iosif Lazaridis, a research fellow in genetics in Reich's lab and first author of the paper. "Differences between them are due to the relative proportions of ancestry. Northern Europeans have more hunter-gatherer ancestry — up to about 50 percent in Lithuanians — and Southern Europeans have more farmer ancestry." The most surprising part of the project, however, was the discovery of the Basal Eurasians. Before Australian Aborigines, New Guineans, South Indians, Native Americans and other indigenous hunter-gatherers split, they split from Basal Eurasians. The study also found that Mediterranean groups such as the Maltese, as well as Ashkenazi Jews, had more Near East ancestry than anticipated, while far northeastern Europeans such as Finns and the Saami, as well as some northern Russians, had more East Asian ancestry in the mix.

Study: Chimpanzees Have Evolved To Kill Each Other 34

Posted by samzenpus , from the battle-of-the-apes dept.
sciencehabit writes A major new study of warfare in chimpanzees finds that lethal aggression can be evolutionarily beneficial in that species, rewarding the winners with food, mates, and the opportunity to pass along their genes. The findings run contrary to recent claims that chimps fight only if they are stressed by the impact of nearby human activity—and could help explain the origins of human conflict as well.

Slashdot Asks: What's In Your Home Datacenter? 107

Posted by samzenpus , from the show-and-tell dept.
First time accepted submitter jvschwarz writes There was a time when I had rack-mount systems at home, preferring old Unix boxes, Sun-3 and early SPARC machines, but have moved to low-power machines, Raspberry Pi systems, small NAS boxes, etc. Looks like some are taking it to another level. What do other slashdotters have in their Home Datacenter?

Dealership Commentator: Tesla's Going To Win In Every State 91

Posted by samzenpus , from the go-ahead-and-sell-it dept.
cartechboy writes Unless you've been in a coma for a while you're aware that many dealer associations have been causing headaches for Tesla in multiple states. The reason? They are scared. Tesla's new, different, and shaking up the ridiculously old way of doing things. But the thing is, Tesla keeps winning. Now Ward's commenter Jim Ziegler, president of Ziegler Supersystems in Atlanta, wrote an opinion piece that basically says Tesla's going to prevail in every state against dealer lawsuits. He says Tesla's basically busy defending what are nuisance suits. This leads to the question of whether there will be some sort of sweeping federal action in Tesla's favor.

Microsoft Lays Off 2,100, Axes Silicon Valley Research 51

Posted by samzenpus , from the end-of-the-line dept.
walterbyrd writes with news of Microsoft layoffs. Microsoft Corp will close its Silicon Valley research-and-development operation as part of 2,100 layoffs announced on Thursday, as it moves toward its new CEO's goal of cutting 18,000 staff, or about 14 percent of its workforce. News of the closure of the Microsoft Research lab at the company's campus in Mountain View, California, was first made public on Twitter by employees. The company later confirmed the move and said it would involve the loss of 50 jobs.

Apple's "Warrant Canary" Has Died 95

Posted by samzenpus , from the get-out-of-the-mine dept.
HughPickens.com writes When Apple published its first Transparency Report on government activity in late 2013, the document contained an important footnote that stated: "Apple has never received an order under Section 215 of the USA Patriot Act. We would expect to challenge such an order if served on us." Now Jeff John Roberts writes at Gigaom that Apple's warrant canary has disappeared. A review of the company's last two Transparency Reports, covering the second half of 2013 and the first six months of 2014, shows that the "canary" language is no longer there suggesting that Apple is now part of FISA or PRISM proceedings.

Warrant canaries are a tool used by companies and publishers to signify to their users that, so far, they have not been subject to a given type of law enforcement request such as a secret subpoena. If the canary disappears, then it is likely the situation has changed — and the company has been subject to such request. This may also give some insight into Apple's recent decision to rework its latest encryption in a way that makes it almost impossible for the company to turn over data from most iPhones or iPads to police.

Mystery Signal Could Be Dark Matter Hint In ISS Detector 43

Posted by samzenpus , from the filling-in-space dept.
astroengine writes Analysis of 41 billion cosmic rays striking the Alpha Magnetic Spectrometer particle detector aboard the International Space Station shows an unknown phenomena that is "consistent with a dark matter particle" known as a neutralino, researchers announced Thursday. Key to the hunt is the ratio of positrons to electrons and so far the evidence from AMS points in the direction of dark matter. The smoking gun scientists look for is a rise in the ratio of positrons to electrons, followed by a dramatic fall — the telltale sign of dark matter annihilating the Milky Way's halo, which lies beyond its central disk of stars and dust. However, "we have not found the definitive proof of dark matter," AMS lead researcher Samuel Ting, with the Massachusetts Institute of Technology and CERN in Switzerland, wrote in an email to Discovery News. "Whereas all the AMS results point in the right direction, we still need to measure how quickly the positron fraction falls off at the highest energies in order to rule out astrophysical sources such as pulsars." But still, this new finding is a tantalizing step in the dark matter direction.

Dremel Releases 3D Printer 61

Posted by samzenpus , from the print-it-at-home dept.
Lucas123 writes Power tool maker Dremel today announced its now selling a desktop 3D printer that it said is targeted at "the masses" with a $1,000 price tag and intuitive software. Dremel's 3D Idea Builder is a fused deposition modeling (FDM) machine that can use only one type of polymer filament, polylactide (PLA) and that comes in 10 colors. The new 3D printer has a 9-in. x 5.9-in. x 5.5-in. build area housed in a self-contained box with a detachable lid and side panels. Dremel's currently selling its machine on Amazon and The Home Depot's website, but it plans brick and mortar store sales this November.

A Beginner's Guide To Programming With Swift 40

Posted by timothy , from the how-swift-is-it? dept.
Nerval's Lobster (2598977) writes Earlier this year, Apple executives unveiled Swift, which is meant to eventually replace Objective-C as the programming language of choice for Macs and iOS devices. Now that iOS 8's out, a lot of developers who build apps for Apple's platforms will likely give Swift a more intensive look. While Apple boasts that Swift makes programming easy, it'll take some time to learn how the language works. A new walkthrough by developer David Bolton shows how to build a very simple app in Swift, complete with project files (hosted on SourceForge) so you can follow along. A key takeaway: while some Swift features do make programming easier, there's definitely a learning curve here.

Next Android To Enable Local Encryption By Default Too, Says Google 85

Posted by timothy , from the keep-it-to-yourself-bub dept.
An anonymous reader writes The same day that Apple announced that iOS 8 will encrypt device data with a local code that is not shared with Apple, Google has pointed out that Android already offers the same feature as a user option and that the next version will enable it by default. The announcements by both major cell phone [operating system makers] underscores a new emphasis on privacy in the wake of recent government surveillance revelations in the U.S. At the same time, it leaves unresolved the tension between security and convenience when both companies' devices are configured to upload user content to iCloud and Google+ servers for backup and synchronization across devices, servers and content to which Apple and Google do have access.

Oracle CEO Larry Ellison Steps Down 103

Posted by timothy , from the one-real-american-named-larry-ellison dept.
mrspoonsi writes Oracle founder Larry Ellison is stepping down as CEO. He will be replaced by two executives. Former Oracle presidents Safra Catz and Mark Hurd will be co-CEOs. Ellison will be the Executive Chairman of Oracle's Board, and the company's CTO. Oracle's shares are off by 3% on the news. "Larry has made it very clear that he wants to keep working full time and focus his energy on product engineering, technology development and strategy," said the Oracle Board's Presiding Director, Dr. Michael Boskin.

Once Vehicles Are Connected To the Internet of Things, Who Guards Your Privacy? 111

Posted by timothy , from the I-hope-it's-rob-ford dept.
Lucas123 (935744) writes Carmakers already remotely collect data from their vehicles, unbeknownst to most drivers, but once connected via in-car routers or mobile devices to the Internet, and to roadway infrastructure and other vehicles around them, that information would be accessible by the government or other undesired entities. Location data, which is routinely collected by GPS providers and makers of telematics systems, is among the most sensitive pieces of information that can be collected, according to Nate Cardozo, an attorney with the Electronic Frontier Foundation. "Not having knowledge that a third party is collecting that data on us and with whom they are sharing that data with is extremely troubling," Cardozo said. in-vehicle diagnostics data could also be used by government agencies to track driver behavior. Nightmare scenarios could include traffic violations being issued without law enforcement officers on the scene or federal agencies having the ability to track your every move in a car. That there could be useful data in all that personally identifiable bits made me think of Peter Wayner's "Translucent Databases."

New Study Projects World Population of 11B by 2100 242

Posted by timothy , from the ok-but-only-one-of-me dept.
vinces99 (2792707) writes Using modern statistical tools, a new study led by the University of Washington and the United Nations finds that world population is likely to keep growing throughout the 21st century. The number of people on Earth is likely to reach 11 billion by 2100, the study concludes, about 2 billion higher than widely cited previous estimates. The paper published online Sept. 18 in the journal Science includes the most up-to-date numbers for future world population, and describes a new method for creating such estimates. "The consensus over the past 20 years or so was that world population, which is currently around 7 billion, would go up to 9 billion and level off or probably decline," said corresponding author Adrian Raftery, a UW professor of statistics and of sociology. ... The paper explains the most recent United Nations population data released in July. This is the first U.N. population report to use modern statistics, known as Bayesian statistics, that combines all available information to generate better predictions.

Most of the anticipated growth is in Africa, where population is projected to quadruple from around 1 billion today to 4 billion by the end of the century. The main reason is that birth rates in sub-Saharan Africa have not been going down as fast as had been expected. There is an 80 percent chance that the population in Africa at the end of the century will be between 3.5 billion and 5.1 billion people.

The 2014 Ig Nobel Prizes Will Be Awarded Tonight 26

Posted by timothy , from the as-they-should-be dept.
alphadogg (971356) writes At Harvard University's Sanders Theater this evening, a collection of the most off-the-wall, bizarre and lurid scientific efforts of the past year will be dubiously honored with an Ig Nobel Prize. The Ig Nobels are awarded annually by Improbable Research, an organization devoted to scientific education that publishes the Annals of Improbable Research magazine six times a year. Past honorees have included:*A study about homosexual necrophilia in ducks; Competitive analysis of breakfast cereal sogginess; The discovery that dung beetles can navigate using the Milky Way galaxy. The ceremony begins at 6 p.m. EST, and can be viewed online for free here.

Ask Slashdot: How To Pick Up Astronomy and Physics As an Adult? 201

Posted by timothy , from the productive-member-of-socety dept.
First time accepted submitter samalex01 (1290786) writes "I'm 38, married, two young kids, and I have a nice job in the IT industry, but since I was a kid I've had this deep love and passion for astronomy and astrophysics. This love and passion though never evolved into any formal education or anything beyond just a distant fascination as I got out of high school, into college, and started going through life on more of an IT career path. So my question, now that I'm 38 is there any hope that I could start learning more about astronomy or physics to make it more than just a hobby? I don't expect to be a Carl Sagan or Neil deGrasse Tyson, but I'd love to have enough knowledge in these subjects to research and experiment to the point where I could possibly start contributing back to the field. MIT Open Courseware has some online courses for free that cover these topics, but given I can only spend maybe 10 hours a week on this would it be a pointless venture? Not to mention my mind isn't as sharp now as it was 20 years ago when I graduated high school. Thanks for any advice or suggestions."

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