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Tech News Headlines - Yahoo! News

RIM unveils cheaper BlackBerry

ORLANDO, Fla. (AP) ? Research In Motion unveiled a lower-cost BlackBerry aimed at consumers in emerging markets on Tuesday, stepping up its efforts to More??

AP - 3 hrs ago

iTunes' second act

Could the flotilla of bloated computer garbage that is iTunes reinvent itself, with the help of Daft Punk? More??

Yahoo! News - 5 hrs ago

Source: http://rss.news.yahoo.com/rss/techblog

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Novel brain training device to reconnect brain and paralyzed limb after stroke

May 15, 2013 ? The world's first Brain Training Device has given a ray of new hope to the recovery of survivors after stroke. Developed by researchers of The Hong Kong Polytechnic University, this novel device can detect brainwave and control the movement of paralyzed limbs.

The world's first Brain Training Device has given a ray of new hope to the recovery of survivors after stroke. Developed by researchers of The Hong Kong Polytechnic University (PolyU)'s Interdisciplinary Division of Biomedical Engineering (BME), this novel device which can detect brainwave, and thereby control the movement of paralyzed limbs, or go even further to control a robotic hand based on its sophisticated algorithm.

The research was led by Prof. Raymond Tong Kai-yu, Professor of PolyU's Interdisciplinary Division of Biomedical Engineering, who is also the Principal Investigator of the award-winning Exoskeleton Hand Robotic Training Device or the "Hand of Hope." His team members include the BME research team (Newmen Ho, Xiaoling Hu, Ching-hang Fong, Xinxin Lou, Lawrence Chong and Nathan Lam) and the Industrial Centre team of PolyU (Robert Tam, Bun Yu, Shu-to Ng and Peter Pang).

The latest breakthrough "Brain Training Device" can be coupled with the use of the "Hand of Hope" to achieve higher degree of recovery for stroke patients. While effective motor recovery after stroke depends on early rehabilitation program and intensive voluntary practice of the paretic limbs, current rehabilitation products have not use brainwave to guide the stroke survivors to identify voluntary intention and to relearn how to reconnect to their paralyzed limb again.

Prof. Raymond Tong and his team therefore developed the Brain Training Device with a new coherence algorithm for hand function training. The new algorithm is based on frequency coherence on surface electroencephalography (EEG, brainwave) and electromyography (EMG, muscle activities) to identify voluntary intention and their connection.

"The Brain Training Device is able to guide the stroke patients to relearn the reconnection between the brain and the limb, with a new design on the EEG headset and the EMG forearm brace to transmit data for controlling a hand robotic system interfaced by a telecare software platform using iPad app." Prof. Raymond Tong explained.

The patented Brain Training System, which looks like a helmet for cyclist and can read brainwaves, also has new features to find the specific EEG electrode locations for each individual stroke patient and reduce the number of EEG electrodes, which can reduce the system cost and the preparation time for brain training, added by Prof. Tong.

To find a minimal set of electrodes to control the device with accuracy higher than 90%, five chronic stroke patients were recruited to be trained for 20 sessions in the study. The researchers found that, in general, 32 electrodes are needed to maintain accuracy higher than 90%.

The high accuracy and low number of channels needed means that the Brain Training Device is a viable tool for assistive aid and rehabilitation training. The futuristic system will be made portable and easy-to-use at hospital and home settings.

PolyU researchers have already filed patents for this Brain Training Device in both the United States and China. This project is funded by the HKSAR Government's Innovation and Technology Fund (ITF). The findings of this brain control algorithm have been published as the cover story in top international journal IEEE Transactions on Neural Systems and Rehabilitation Engineering (2011.12).

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_health/~3/7aBw8_brrSA/130515124841.htm

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Wednesday, May 15, 2013

How Tesla Sales Stack Up Against Four Large ... - Business Insider

After smashing earnings and revenue expectations?and earning the best Consumer Reports score ever for its all-electric Model S sedan, Tesla Motors is riding high.

Sending it even higher is the fact that it looks like it is actually beating out the big dogs in the luxury auto segment, including Mercedes-Benz, BMW, and Audi.

CNN Money looked at sales figures for the first quarter of 2012 ?for Tesla and the three German automakers in the large luxury segment. Tesla is way ahead:

But as CNN Money notes (and John Voelcker at Green Car Reports pointed out last month), these numbers provide an incomplete picture.

Because Tesla sells only one car, the Model S, it competes in only one category, large luxury sedans. It succeeds there, but does not even have entries to compete with the many other models offered by its larger competitors.

Tesla isn't outselling BMW, Audi, or Mercedes-Benz. The Model S is outselling the BMW 7-Series, Audi A8, and Mercedes-Benz S-Class.

Tesla is doing very well with the Model S, but it's still a small fish in a big pond.

We should also point out that Musk's car did not win even win the large luxury sedan segment: It was beaten by Cadillac, which sold more than 7,000 units of its new,?rather impressive XTS sedan?between January and March.

For a fuller picture of the luxury auto market, here are the U.S. luxury sales figures for the same brands in 2012. For Tesla, which does not report exact sales figures, we've used its 2013 sales goal, 21,000 vehicles. (Click to enlarge.)

Figures provided by Green Car Reports.

Source: http://www.businessinsider.com/tesla-is-not-really-outselling-bmw-audi-2013-5

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Pros & Cons of Having Your Mom as Your Facebook Friend ...

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Josh Knoller, a young professional in New York City, spent years refusing his mother's "Friend Request" on Facebook before, eventually, "caving in". Today they have an agreement: she'll try not to make embarrassing comments, and he can delete them if she does.

"We actually got into some pretty big fights over this," says Knoller, 29. "I love my Mom to death but she's a crazy, sweet Jewish mother and I was a little worried about what she might post in front of my closest friends."

One in three mothers are connected with their teenaged kids over Facebook, according to the social networking giant's review of how users self-identify.

With more than 1 billion Facebook users, that's a lot of mothers and kids keeping in touch through social media, says Fordham University communications professor Paul Levinson, author of "New New Media." "Facebook has been a boon to family relationships," said Levinson.

Kelly McBride, an assistant professor of communications at LaSalle University in Philadelphia, says her students who "friend" their mothers keep their Facebook pages benign, using other social media like Instagram or Twitter for the racy stuff.

"They may be willing to 'friend' their mother, but when they do, they take down the drinking or partying or suggestive photographs," she says.

McBride says she'd like to get her own mother, who is 77, onto Facebook. "I've offered repeatedly to make her a Facebook page so I could friend her, but she just won't do it," she says.

Parenting expert Susan Newman recommends that mothers wait until their children are independent adults before friending them.

"Being a friend with your son or daughter on Facebook, to me is synonymous with reading your teenager's diary," she says. "Adolescents are trying to develop an identity and they have so much hovering and helicopter parenting going on, Facebook adds another layer that seems to be very intrusive."

But Stephen Balkam, CEO of the Washington DC-based Family Online Safety Institute, says he was his daughter's first "friend," a requirement for her to even have a Facebook account when she turned 13, the minimum age allowed by the company.

"I promised not to stalk her, but I do need to keep an eye on it," he says.

While 13-year-olds are the most likely group to initiate a friendship with a parent, with more than 65% of those friendships being initiated by the child, people in their 20s are the least likely, initiating just 40% of the friendships with their parents, Facebook says.

Rochelle Knoller of Fair Lawn, New Jersey, whose adult son Josh only reluctantly accepted her "Friend Request," says the early days of their online relationship were dicey.

"I'd write a comment, and literally no sooner would I type when the phone would ring and it would be Josh - I guess he's on Facebook a lot - and he'd be telling me, 'Mom, you can't make comments like this. My friends can't even believe we're friend'," she says.

She says she checks his page about three times a week, and that some of his friends have even asked to be her friend. She accepted, only after checking with her son.

"Today we're pretty much down to where I' m allowed to 'like' something, and I'm allowed to go on his Facebook page and see what's going on with him," she says. "But that is it."

Image courtesy: ? Thinkstock photos/ Getty images

Source: http://idiva.com/news-relationships/pros-cons-of-having-your-mom-as-your-facebook-friend/21452

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