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Biotech

"Normal" Prions May Protect Myelin 81

Posted by kdawson from the simple-fold-of-fate dept.
thomst writes "Nature Neuroscience just published an online article about the function of 'normal' prions in protecting myelin, the substance that sheathes and protects sensory and motor nerves. The international study (which has 11 authors) concluded that 'normal' (i.e., not mis-folded) prions may form a protective coat around myelin. The researchers found that Prnp -/- mice (mice with the gene for prions knocked out) consistently developed progressive demyelination, inevitably leading to persistent polyneuropathy by 60 weeks of age. Their data suggest that damage to myelin sheaths cause normal prions to cleave, and the resulting prion fragments activate Schwann cells, which are known to play a part in myelin repair. This research might eventually lead to possible treatments for progressive polyneuropathies in humans, including those mediated by Creutzfeldt-Jakob disease, multiple sclerosis, Alzheimer's, and even diabetes."
Spam

Researchers Claim "Effectively Perfect" Spam Blocking Discovery 353

Posted by ScuttleMonkey from the sounds-evolutionary-not-revolutionary dept.
A team of computer scientists from the International Computer Science Institute in Berkeley, CA are claiming to have found an "effectively perfect" method for blocking spam. The new system deciphers the templates a botnet is using to create spam and then teaches filters what to look for. "The system ... works by exploiting a trick that spammers use to defeat email filters. As spam is churned out, subtle changes are typically incorporated into the messages to confound spam filters. Each message is generated from a template that specifies the message content and how it should be varied. The team reasoned that analyzing such messages could reveal the template that created them. And since the spam template describes the entire range of the emails a bot will send, possessing it might provide a watertight method of blocking spam from that bot."
Encryption

What's Holding Back Encryption? 660

Posted by CmdrTaco from the cypher-sex-is-a-different-thing dept.
nine-times writes "After many years in IT, I've been surprised to notice how much of my traffic is still unencrypted. A lot of businesses that I interact with (both business and personal) are still using unencrypted FTP, and very few people use any kind of encryption for email. Most websites are still using unencrypted HTTP. DNSSEC seems to be picking up some steam, but still doesn't seem to be widely used. I would have thought there would be a concerted effort to move toward encryption for the sake of security, but it doesn't seem to be happening. I wanted to ask the Slashdot community, what do you think the hold up is? Are the existing protocols somehow not good enough? Are the protocols fine, but not supported well enough in software? Is it too complicated to manage the various encryption protocols and keys? Is it ignorance or apathy on the part of the IT community, and that we've failed to demand it from our vendors?"
Music

THX Caught With Pants Down Over Lexicon Blu-ray Player 397

Posted by timothy from the high-end-but-not-high-road dept.
SchlimpyChicken writes "Lexicon and THX apparently attempted to pull a fast one on the consumer electronics industry, but got caught this week when a couple websites exposed the fact that the high-end electronics company put a nearly-unmodified $500 Oppo Blu-ray player into a new Lexicon chassis and was selling it for $3500. AV Rant broke the story first on its home theater podcast with some pics of the two players' internals. Audioholics.com then posted a full suite of pics and tested the players with an Audio Precision analyzer. Both showed identical analogue audio performance and both failed a couple of basic THX specifications. Audioholics also posted commentary from THX on the matter and noted that both companies appear to be in a mad scramble to hide the fact that the player was ever deemed THX certified."
Privacy

Tynt Insight Is Watching You Cut and Paste 495

Posted by timothy from the peeking-at-your-poke dept.
jerryasher writes "In recent weeks I've noticed that when I copy and paste text from Wired and other websites, the pasted text has had the URL of the original website appended to it. Cool, and utterly annoying, and how do I make that stop? Tynt Insight is a piece of Javascript that sends what you copy to Tynt's webservers and adds the backlinks. Tynt calls that a service for the site owner, many people call that a privacy invasion. Worse, there are some reports that it sends not just what you copy, but everything you select. And Tynt provides no opt outs. Not cookie-based, not IP-based, but stop-it-you-creeps-angry-phone-call-based. It ain't a pure useful service, and it ain't a pure privacy invasion. But I sure wish they'd go away or have had the decency never to start up in the first place. I block it on Firefox with Ghostery."
Image

Air Canada Ordered To Provide Nut-Free Zone Screenshot-sm 643

Posted by samzenpus from the no-nuts dept.
JamJam writes "Air Canada has been told to create a special 'buffer zone' on flights for people who are allergic to nuts. The Canadian Transportation Agency has ruled that passengers who have nut allergies should be considered disabled and accommodated by the airline. Air Canada has a month to come up with an appropriate section of seats where passengers with nut allergies would be seated. The ruling involved a complaint from Sophia Huyer, who has a severe nut allergy and travels frequently. Ms. Huyer once spent 40 minutes in the washroom during a flight while snacks were being served."
Graphics

Microsoft Wants To Participate In SVG Development 292

Posted by timothy from the speak-friend-and-enter dept.
rossendryv writes "After many years of fighting against the standard, Microsoft announced they are joining the WC3's SVG working group to help with the development of SVG. 'We recognize that vector graphics are an important component of the next-generation Web platform,' said Patrick Dengler, senior program manager on Microsoft's Internet Explorer team in a blog post."
Power

Midwest Seeing Red Over 'Green' Traffic Lights 839

Posted by CmdrTaco from the do-you-see-what-i-see dept.
theodp writes "Many municipalities have switched to LED traffic signals because they burn brighter, last longer and use 90% less energy than incandescent bulbs. But they also emit less heat, meaning they sometimes have trouble melting snow, causing problems across the Midwest. In Wisconsin, snow blanketed LED traffic lights in some towns, leading to crashes at intersections where drivers weren't sure whether to stop or go. The unintended consequences of the green technology were also identified as a 'contributing factor' in the death of an Illinois woman hit by a driver who blamed the snow-covered energy-efficient signal for giving the appearance of a normal green light instead of a left-turn signal. 'We can remove the snow with heat, but the cost of doing that in terms of energy use has not brought any enthusiasm from cities and states that buy these signals,' said the CEO of an LED traffic-signal manufacturer. 'They'd like to be able to take away this issue, but they don't want to spend the money and lose the savings.' In the meantime, some towns are addressing sporadic problems by dispatching crews to remove snow or ice from signals using poles, brooms, and heating devices." We were discussing these recently at the office — several folks in the building are red/green color blind and different street lights are differently distinguishable.
Censorship

Court Orders Shutdown of H-1B Critics' Websites 605

Posted by CmdrTaco from the with-great-power-comes-awh-screw-it dept.
theodp writes "Computerworld reports that a NJ Superior Court Judge ordered hosting firms to shut down three Web sites that oppose the H-1B visa program and seeks information about the identity of anonymous posters. GoDaddy, Network Solutions, Comcast and DiscountASP.Net were ordered to disable ITgrunt.com, Endh1b.com, and Guestworkerfraud.com. Facebook Inc. was also ordered to disable ITgrunt's Facebook page. The judge's order was made in response to a libel lawsuit filed by Apex Technology Group Inc., which is citing its copyright ownership as it seeks the identity of the poster of a since-removed Apex employment agreement on Docstoc.com, which drew critical comments on US and India websites."
Earth

The Social Difficulty of Saving Earth From an Asteroid 391

Posted by timothy from the how-to-really-get-godzilla dept.
mantis2009 writes "When it comes to stopping a cataclysmic Earth vs. asteroid event, social science and international political leaders have more difficult questions yet unanswered than physicists do, according to report delivered at this week's American Geophysical Union meeting. Wired has a discussion of an analysis authored by former astronaut Rusty Schweickart, who worries that the international community is nowhere near ready to begin the complex and inevitably controversial task of deflecting an asteroid on a collision course with Earth. Among the questions to be answered is whether to modify the Partial Test Ban Treaty to allow nuclear weapons in outer space. Another possibility to avoid the destruction of civilization would require the international community to choose an area on the globe where an asteroid might be 'aimed.' Who would decide which nations get placed in the asteroid's crosshairs?"
Space

Lake On Titan Winks From a Billion Kilometers Away 139

Posted by timothy from the next-time-send-chocolate dept.
The Bad Astronomer writes "NASA's Cassini spacecraft took an image of Saturn's giant moon Titan earlier this year that serendipitously provides proof of liquid (probably methane) on its surface. The picture shows a glint of reflected sunlight off of a monster lake called Kraken Mare (larger than the Caspian Sea!). Scientists have been getting better and better evidence of liquid methane on Titan, but this is the first direct proof."
Technology

Not Enough Women In Computing, Or Too Many Men? 686

Posted by timothy from the rational-choices dept.
itwbennett writes "Do geeks really 'drive girls out of computer science,' as the headline of a LiveScience article contends? Blogger Cameron Laird doesn't think so. In fact, 'I don't think "gender issues in computing" is important enough to merit the attention it gets,' says Laird in a recent post. And maybe the problem isn't that there are too few women in computing, but that there are too many men. 'I'm waiting to read the headline: "Women too smart for careers with computers,"' says Laird, 'where another researcher concludes that only "boys" are stupid enough to go into a field that's globally-fungible, where entry-level salaries are declining, and it's common to think that staying up all night for a company-paid pizza is a good deal.'"
Image

PhD Candidate Talks About the Physics of Space Battles Screenshot-sm 361

Posted by samzenpus from the load-photon-torpedoes dept.
darthvader100 writes "Gizmodo has run an article with some predictions on what future space battles will be like. The author brings up several theories on propulsion (and orbits), weapons (explosives, kinetic and laser), and design. Sounds like the ideal shape for spaceships will be spherical, like the one in the Hitchhiker's Guide movie."

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