Posts Tagged ‘education,’

May 27, 6:05 PM (ET)

By MARIA CHEN

LONDON (AP) – Special stockings commonly given to stroke patients to prevent blood clots don’t work, a new study reported Wednesday.

Doctors often prescribe the tight, thigh-high stockings to patients who have suffered a stroke, seeking to prevent blood clots in patients’ legs – which could prove fatal if they break off and reach the heart or lungs.

About two-thirds of stroke patients can’t walk when admitted to hospital, and up to 20 percent of those patients develop a blood clot in their legs. The stockings squash the legs and force the blood to circulate better, and can be used in place of, or alongside, anti-clotting drugs like heparin.

But in a study of more than 2,500 stroke patients in Australia, Britain and Italy, doctors found the stockings did nothing to reduce the chances of a clot. Not only that, but they caused problems like skin ulcers and blisters.

The results were simultaneously published in the Lancet medical journal and presented at the European Stroke Conference in Stockholm on Wednesday.

Some experts were surprised by the findings.

“We have used these stockings because we assume they work,” said Dr. Ralph Sacco, president-elect of the American Heart Association, who was not linked to the study. “But sometimes you’re surprised when you find out the truth with a randomized trial.”

The stockings have been proven to reduce clots in surgery patients, so experts had long thought the low-cost solution might also help stroke patients.

In the study, about half of the patients got standard care in addition to the stockings. The other half just got standard care. Experts took an ultrasound of patients’ legs after about 7 to 10 days, and then again after 25 to 30 days. About 10 percent of patients in both groups developed blood clots.

In the group wearing stockings, 5 percent reported side effects like skin problems and blisters. That compares to 1 percent in the group not given the stockings.

The study was paid for by Britain’s Medical Research Council, the Scottish government, the health charity Heart and Stroke Scotland, Tyco Healthcare in the United States and the U.K. Stroke Research Network.

In Britain, draft guidelines recommend patients wear the stockings and they are used to treat an estimated 80,000 patients per year. Martin Dennis, of the University of Edinburgh and one of the study authors, said he has contacted British officials to suggest they reconsider their advice.

“This should cause a big change in how patients are treated,” Dennis said, noting that in 2002, 90 percent of stroke units in Britain used the stockings.

In the United States, stockings for stroke patients are far less popular than in the U.K.

Dr. Marc Mayberg, co-director of the Seattle Neuroscience Institute, said he hadn’t recommended the stockings for patients in about 20 years. He said the stockings were cumbersome and difficult for many patients, whose legs were paralyzed, to put on and take off.

Recommendations from the American Heart Association published in 2005 advised doctors to consider using the stockings in addition to an anti-clotting drug, or for patients who can’t take such drugs.

Sacco said American doctors were more likely to use drugs instead of stockings to prevent clots. He thought the guidelines promoting stockings might now have to be revised.

“With this lack of effect, doctors may be much less inclined to use them,” he said.

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On the Net:

The Lancet http://www.lancet.com

Young people today are growing up in the midst of a media storm. The electronic input into their brains and lives is more than any previous generation. We have to wonder what the impact will be on their morals and their lives. In a sense, it is a social experiment taking place right before our eyes.

Consider that the average teenager will have seen 22,000 hours of television by the time he or she graduates from high school. To put that figure in perspective, he or she will only have been in a classroom for 11,000 hours. When I have shared this statistic with some audiences, they don’t believe that students will have seen that much television. But they come from averages collected by the A.C. Nielsen Company that monitors television.

Here’s another staggering figure: young people will listen to nearly 11,000 hours of music during their teen years. That figure comes from a study in the Journal of the American Medical Association and was collected before the popularity of the iPod. It seems reasonable to assume that this new invention has probably increased the hours of listening to music.

How much time do they spend on the Internet? That is a difficult number to find, but USA Today reports that teens spend about 16 percent of their time each day surfing the Internet or e-mailing. Another study found that 89 percent send or receive e-mail daily.

A study of other actual situations shows that video games were very important and concluded that male gamers spent an average of 58 minutes playing on the weekdays and one hour and 37 minutes playing on the weekends. The time spent by females was less but also significant.

Well, you get the picture. This generation is wired and this isn’t a good thing. They spend long hours in front of a screen (a TV screen, a computer screen, or a video screen). It’s time for them to unplug. I’m Kerby Anderson, and that’s my point of view.

Last Updated: 9:11AM GMT 09 Feb 2009

Channels could be changed by voice, making remote controls a thing of the past

The sets would be powered by the viewer’s body heat, according to Ian Pearson, a so-called “futurologist” who has advised leading companies including BT on new technologies.
Acer Aspire One AOA150-1447 8.9-Inch Netbook (1.6 GHz Intel Atom N270 Processor, 1 GB RAM, 160 GB Hard Drive, XP Home, 6 Cell Battery) Sapphire Blue

Mr Pearson told the Daily Mail he believed that channels could be changed by voice command or via a wave of the hand.

Meanwhile "emotional viewing" could be another development in television technology, according to a report commissioned by the technology retailer Comet.

A "digital tattoo" fitted to the viewer would pick up on the feelings of characters on screen and create impulses causing them to feel the same way.

The development could see James Bond fans become able feel the thrill of a high-speed car chase or sports fans allowed to share the joy of elated players, it said.

"We could even get to the point where we'll be able to immerse ourselves in a football game, making it feel like you're running alongside your favourite player or berating the ref," the report added.

Miriam Rayman, of the Future Laboratory consultancy, which compiled the report, said the basic technology needed for the developments already existed.

She said: "The technology is getting smaller and smaller and people are trying to work out how to make it more immersible. They are trying to bring it closer and closer to the eye."

Eyes turn to dawn of ‘visual computing’
Aug 28 06:03 PM US/Eastern..Breitbart.com

World’s Largest Visual Computing Show Gives Peek Into Future Of Digital Graphics

Lifelike graphics are breaking free of elite computer games and spreading throughout society in what industry insiders proclaim is the dawning of a “visual computing era.”

Astronauts, film makers and celebrities joined software savants, engineers and gamers in the heart of Silicon Valley this week for a first-ever NVision conference devoted to computer imagery advances changing the way people and machines interact.

“Visual computing is transforming the videogame industry; transforming the film industry, and has all kinds of potential for how we view real-time television,” NVIDIA co-founder Jen-Hsun Huang told those gathered at the event.

Israel-based Optitex demonstrated software that replicates fabrics so realistically that clothing designers can see what fashions will look and act like on people before garments are made.

Lifelike graphics are breaking free of elite computer games and spreading throughout society in what industry insiders proclaim is the dawning of a “visual computing era.”

Astronauts, film makers and celebrities joined software savants, engineers and gamers in the heart of Silicon Valley this week for a first-ever NVision conference devoted to computer imagery advances changing the way people and machines interact.

“Visual computing is transforming the videogame industry; transforming the film industry, and has all kinds of potential for how we view real-time television,” NVIDIA co-founder Jen-Hsun Huang told those gathered at the event.

“We solve some of the most challenging problems for more and more companies around the world. Let the era of visual computing begin.”

Gamers dueled for three days in a cavernous room in the San Jose Convention Center while entrepreneurs showed how graphics breakthroughs are shining in other fields.

Car makers are exploring letting potential buyers not only customize automobiles with graphics software but go on virtual test drives.

Graphics processing underpins financial modeling and weather forecasting.

Israel-based Optitex demonstrated software that replicates fabrics so realistically that clothing designers can see what fashions will look and act like on people before garments are made.

Optitex’s animation software is being eyed by Hollywood film makers.

Dassault Systemes puts 3D computer-assisted design to work virtually constructing passenger jets, buildings and more.

“Three-D should be a new way for us to dream and design the future of our world,” The French company’s chief executive Bernard Charles said at NVision.

“It will impact everything we do: education, science, talking to each other … of course games.”

He predicts that lifelike graphics combined with feedback from online communities will let people influence how products are designed, sold and even how “green” they are.

Charles maintains computer simulations will be so realistic that virtual activities will mirror physical experiences.

Simulators already play an important part in training for space shuttle missions, according to former US astronaut Eileen Colleens, the first woman shuttle commander.

“When you fly the actual mission you feel like you are in a simulator,” Collins said. “We really can’t do our job without the good visual graphics that we get.”

The world of visual computing is “inescapable,” said Chris Malachowsky, a co-founder of NVIDIA, a California firm renowned for high-end graphics processing cards for computers.

“We are being presented with displays everywhere,” Malachowsky told AFP. “It used to be about the computing part, but the emphasis is shifting. It is not so much about the computation but how it is presented and seen by people.”

The rising tide of digital videos, photos, films and television shows on the Internet is lifting the status of graphics chips, cards, and software and strengthening a trend to “unflatten” displays with 3D imagery.

Malachowsky spoke of using visual computing power to develop new medicines or provide doctors with real-time 3D images of patients’ organs.

“They will be able to recreate scan data so fast you could see your own heart beating,” Malachowsky said.