Showing posts with label could. Show all posts
Showing posts with label could. Show all posts

Sunday, September 16, 2012

How Facebook could help swing the US election

How Facebook could help swing the US election - science-in-society - 12 September 2012 - New Scientist@import "/css/gridmain.css"; @import "/css/article.css";@import "/css/comlist.css";@import "/data/images/ns/haas/haas.css";/* specific to this article view */#maincol {border-top:solid #A7A7A7 1px; padding-top:15px;}/* Basic commenting CSS*/.combx {margin:10px 0 0 0;padding:10px 20px 10px 10px;}#compnl {border-top:solid #A7A7A7 1px;}/* comment styles for article page only *//* form styles */#comform {margin:20px 50px 20px 10px;}#comform label{width: 90px;text-align: right;}#comform div.userhelp {margin:0 0 2px 115px;}#comform input.textinput, #comform textarea {width:300px;}#comform div.floatclear, #comformlogin div.floatclear {margin-bottom:10px;}#comform input#comcancel{margin:0 10px 0 0;}#comform input#compreview{margin:0 10px 0 0;}#comform textarea {height:95px;}#comformlogin {margin:20px 100px 20px 100px;}#comformlogin label{width: 120px;}#comformlogin input.textinput {width:150px;}#snv_science-in-society a {background: url('/img/bg/snv_science-in-society.jpg') no-repeat; color:#fff;}/* article social media */#sharebtns {width:440px; margin-left:10px; margin-bottom:20px; padding:15px 0 15px 10px; background:#F2F2F2;}#sharebtns div.floatleft {margin-right:10px;}#sharebtns .stumble {margin-top:1px;}.grpTools img {margin-right:8px; margin-top:9px;}#fblike {margin-top:41px;} Subscribe nowNew ScientistScience in Society    Log in

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How Facebook could help swing the US election18:00 12 September 2012 byJim GilesFor similar stories, visit theUS national issuesTopic Guide Could Facebook help swing this year's US presidential election? That's the possibility raised by a study showing that a simple message on the social network could help boost turnout of Facebook users by 2.2 per cent. With the right targeting of voters in marginal seats, that might be enough to swing an election.

Political parties everywhere work hard to get their supporters to the polls. Traditional methods, such as house visits, can increase turnout by around 10 per cent but are time consuming and expensive. Online campaigns, such as emails to supporters, are much cheaper but thought to have limited impact. The new study suggests that, done right, social media can be both cheap and effective.

On 2 November 2010, the day of the Congressional elections, more than 60 million Facebook users in the US saw a pro-voting message at the top of their Facebook page, placed there by a team at the University of California, San Diego. It included an "I voted" button, and the profile pictures of friends who had already clicked it.

Social component The team compared the voting records of people who saw the message with those who did not. Just being exposed to the message persuaded an additional 0.4 per cent of users to vote.

The social component was more powerful still: users were 1.8 per cent more likely to vote if a close friend had also seen the message. The total impact on turnout is greater than the margin of victory in the national vote in presidential elections in 2000, 1976 and 1968.

Both President Barack Obama and his rival Mitt Romney invest heavily in social media, and will be licking their lips at such a cheap way of gaining extra voters.

Both campaign teams can be expected to modify their efforts to capitalise on this kind of social contagion. "If I was running one of the campaigns I'd pay close attention," says James Fowler, one of the authors if the study, which appeared in Nature.

Time will tell That could mean that Facebook and other social media lead to a bump in turnout in November, but with both sides alert to the potential their efforts will not necessarily produce an advantage for either side.

A similar effect is sometimes seen in television advertising, where campaigns can spend enormous amounts and, in the absence of a big financial advantage on either side, end up in a dead heat.

Fowler's finding "illustrates the possibility of field experiments of mind-blowing scale", says David Lazer, a social scientist at Northeastern University in Boston. But he adds a note of caution: "Social media use is changing so much that it is unclear whether a similar intervention would have similar effects four years from now."

Journal reference: Nature, DOI: 10.1038/nature11421

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printsendIf the Facebook fits... <I>(Image: Saul Loeb/AFP/Getty Images)</I>If the Facebook fits... (Image: Saul Loeb/AFP/Getty Images)

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Thursday, September 13, 2012

Tough, super-stretchy gel could make better implants

Tough, super-stretchy gel could make better implants - tech - 06 September 2012 - New Scientist@import "/css/gridmain.css"; @import "/css/article.css";@import "/css/comlist.css";@import "/data/images/ns/haas/haas.css";/* specific to this article view */#maincol {border-top:solid #A7A7A7 1px; padding-top:15px;}/* Basic commenting CSS*/.combx {margin:10px 0 0 0;padding:10px 20px 10px 10px;}#compnl {border-top:solid #A7A7A7 1px;}/* comment styles for article page only *//* form styles */#comform {margin:20px 50px 20px 10px;}#comform label{width: 90px;text-align: right;}#comform div.userhelp {margin:0 0 2px 115px;}#comform input.textinput, #comform textarea {width:300px;}#comform div.floatclear, #comformlogin div.floatclear {margin-bottom:10px;}#comform input#comcancel{margin:0 10px 0 0;}#comform input#compreview{margin:0 10px 0 0;}#comform textarea {height:95px;}#comformlogin {margin:20px 100px 20px 100px;}#comformlogin label{width: 120px;}#comformlogin input.textinput {width:150px;}#snv_tech a {background: url('/img/bg/snv_tech.jpg') no-repeat; color:#fff;}/* article social media */#sharebtns {width:440px; margin-left:10px; margin-bottom:20px; padding:15px 0 15px 10px; background:#F2F2F2;}#sharebtns div.floatleft {margin-right:10px;}#sharebtns .stumble {margin-top:1px;}.grpTools img {margin-right:8px; margin-top:9px;}#fblike {margin-top:41px;} Subscribe nowNew ScientistTech    Log in

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Tough, super-stretchy gel could make better implants06 September 2012Magazine issue 2881. Subscribe and save LOOK out, Mr Fantastic: there's a new creation in town that is super-stretchy and ultra-strong, despite being 90 per cent water.

The material is a hydrogel, an artificial substance that has similar properties to many tissues in the human body. Familiar to many as soft contact lenses, hydrogels have also been used as wound dressings or cartilage replacement.

There is a limiting factor: "Most hydrogels are brittle, like tofu or Jell-O," says Zhigang Suo of Harvard University. "To be used in the body, hydrogels have to be flexible and tough."

Suo and colleagues created their substance by mixing two polymers each crosslinked with different types of chemical bonds. The resulting hybrid gel can stretch to more than 20 times its original length and still bounce back into shape (Nature, doi: 10.1038/nature11409).

Other hydrogels have been made about as stretchy, but they rip easily if they suffer small tears.

"It's like the rubber of a balloon," says Suo. "If you cut a small hole in it and then try to stretch it, the hole will get bigger and the rubber will break."

Even when slightly torn, the new gel can stretch to around 17 times its original length before it tears. The team thinks this toughness may be due to the gel's hybrid nature.

Costantino Creton at ESPCI ParisTech in France, says the hydrogel has the best balance of properties yet, as well as being easy to make: "It shows promise where you need something soft and flexible but also durable."

Issue 2881 of New Scientist magazineNew ScientistNot just a website!Subscribe to New Scientist and get:New Scientist magazine delivered every weekUnlimited online access to articles from over 500 back issuesSubscribe Now and SaveprintsendIf you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

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printsendTaking the strain <i>(Image: Jeong-Yun Sun)</i>Taking the strain (Image: Jeong-Yun Sun)

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Monday, September 3, 2012

Buzzing clothes could teach you to be a better athlete

Buzzing clothes could teach you to be a better athlete - tech - 17 August 2012 - New Scientist@import "/css/gridmain.css"; @import "/css/article.css";@import "/css/comlist.css";@import "/data/images/ns/haas/haas.css";/* specific to this article view */#maincol {border-top:solid #A7A7A7 1px; padding-top:15px;}/* Basic commenting CSS*/.combx {margin:10px 0 0 0;padding:10px 20px 10px 10px;}#compnl {border-top:solid #A7A7A7 1px;}/* comment styles for article page only *//* form styles */#comform {margin:20px 50px 20px 10px;}#comform label{width: 90px;text-align: right;}#comform div.userhelp {margin:0 0 2px 115px;}#comform input.textinput, #comform textarea {width:300px;}#comform div.floatclear, #comformlogin div.floatclear {margin-bottom:10px;}#comform input#comcancel{margin:0 10px 0 0;}#comform input#compreview{margin:0 10px 0 0;}#comform textarea {height:95px;}#comformlogin {margin:20px 100px 20px 100px;}#comformlogin label{width: 120px;}#comformlogin input.textinput {width:150px;}#snv_tech a {background: url('/img/bg/snv_tech.jpg') no-repeat; color:#fff;}/* article social media */#sharebtns {width:440px; margin-left:10px; margin-bottom:20px; padding:15px 0 15px 10px; background:#F2F2F2;}#sharebtns div.floatleft {margin-right:10px;}#sharebtns .stumble {margin-top:1px;}.grpTools img {margin-right:8px; margin-top:9px;}#fblike {margin-top:41px;} Subscribe nowNew ScientistTech    Log in

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Buzzing clothes could teach you to be a better athlete17 August 2012 byHannah KrakauerMagazine issue 2877. Subscribe and saveFor similar stories, visit theSportTopic Guide IF YOU have ever hoped that sleek workout kit could enhance your athletic ability, you may be in luck. Gym-ready clothes designed to improve your performance as you exercise are on their way.

The goal of the Move project, headed by designer Jennifer Darmour, is to make clothing with embedded sensors that can help people improve their technique at Pilates ndash; a popular exercise regime that demands precise positioning of the back and abdominal muscles.

Each garment contains four stretch-and-flex sensors woven out of conductive fibres embedded in the front, back and sides (pictured, below). Darmour worked with a Pilates instructor to learn where mistakes are commonly made during class: backs collapse, hips jut at the wrong angle and stomach muscles "dome".

If your left hip pops up when it should be down, the stretch sensors detect the misalignment and small vibrating motors respond with gentle buzzes in the offending area. When the movement is corrected, the same hip receives three approving buzzes.

The Move system also transmits body position data via Bluetooth to your smartphone, and an accompanying app lets users analyse how well they performed their exercises. The software collects information over the entire workout and presents it as animations that can be replayed to understand where you tend to go astray.

Though Move is designed for Pilates, Darmour imagines extending the system to other sports where body placement is paramount: a golf swing, or a pitch in baseball, for example.

Unlike many wearable sensing systems, Darmour's Move garments will not feel clunky. The fabrics are made of the same materials as standard exercise clothes, and the sensors are woven invisibly into the fabric and seams. The work was presented at the Wearable Technologies conference in San Francisco last month.

"What's really interesting to me about this is that they're considering it from a fashion point of view," says Jennifer Jacobs, a researcher at the MIT Media Lab. In order for e-textiles to broaden their appeal, they will have to be functional while still looking good, she says.

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a benefit only available to subscribersGreat savings from the normal priceSubscribe now!printsendIf you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

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printsendThat exercise buzz <i>(Image: Leo Lam)</i>That exercise buzz (Image: Leo Lam)

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