Stem cell jab restores feeling in paralysed


London: Scientists have developed a new stem cell therapy which can help people with broken spines to recover feelings in previously paralysed body areas.
Two of the three patients have reported a positive outcome after receiving injections of neural stem cells, doctors at the Zurich University said. Doctors say the ultimate aim is to help those paralysed by injury to walk again, The Telgraph reported.

The trial worked on the theory that injected adult stem cells would transform themselves into spinal cord nerves, reconnecting brain and lower body.

Professor Armin Curt, who lead the study, described the result as "fundamental" .

"To find something that can repair the spinal cord is a huge breakthrough. If we can show that something has changed for the better (as a result of stem cell therapy) that's fundamental," he said.
He presented the findings at the annual conference of the International Spinal Cord Society in London on Monday.

"We think these stem cells are one of the first tools we have for actually repairing the central nervous system. To see this kind of change in patients who truly have the worst-of-the-worst type of injury to the spinal cord is very ," Dr Stephen Huhn, from the firm, said.

The three patients, who all had complete spinal injury and could feel nothing below their nipples, were each given a dose of 20 million 'adult' neural stem cells about six months ago. This was primarily a safety trial, and Curt said monitoring had shown "a very good safety profile".

Detailed questioning and objective tests also showed signals were passing up the injured spine to the brain, when they had not before.

One of the patients, a 46-year-old Norwegian financial consultant, said, "I've noticed changes. When somebody touches my stomach, I can feel something. I can't be specific, but I can sense it."

Stem cell research for spinal injury "requires an incremental approach where we build the therapy one brick at a time" , Huhn said. Walking was not the only aim: people paralysed also wanted to regain sensation, bowel and sexual function, he said.

Helmet gives fighter pilots ‘X-ray’ vision


Katia Moskvitch tries the Striker 'smart helmet' on a simulator

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When a pilot in a Eurofighter Typhoon jet glances down, he doesn't see a steel-grey floor. Instead he sees clouds, and maybe sheep and cows in green fields below.
If he were to spot an enemy down there, or anywhere near the aircraft, he would not need to point the plane towards the target.
He would simply look at it - through the solid hull of the plane - make sure that a tiny symbol displayed on his helmet's visor was aligned with the object, press a button and fire.
The pilot is wearing BAE Systems' Striker HMSS helmet, the UK defence company's latest development. Putting augmented reality technology - as used in video games - to military use is the latest goal for helmet makers around the world.

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The plane's sensors provide the pilot with X-ray vision-like imagery”
David Cenciotti Former Italian Air Force officer
Cameras all around the aircraft are wirelessly linked to BAE's helmet; the system checks in which direction the pilot is looking, and then displays the exact view on the visor, in real time.
Striker incorporates a helmet-mounted display (HMD), designed to help the pilot communicate with the plane.
HMD is a step forward from the so-called head-up displays (HUD) - the transparent screens in front of the pilot that first appeared in the 1970s. They show key data, such as the altitude, speed and direction, allowing pilots to keep their eyes on the view ahead instead of constantly looking down to check their instruments.
HUDs also display targets - but to aim, the pilot has to manoeuvre the aircraft accordingly.
The military around the world started using HMDs in the 1990s; nowadays, they are becoming more and more advanced.
VSI helmet Helmet-mounted displays made by a US company VSI are also among the most advanced, providing the pilot with X-ray-like vision
"If a pilot wears a Striker helmet - which is essentially a helmet with an integrated display - when he sees something on the ground he can just turn his head, put a symbol across on to the point of interest, press a button, and the system will calculate the object's co-ordinates," says Alan Jowett of BAE Systems.

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With a helmet-mounted display, you could actually control a UAV equipped with weapons from the jet”
Peter Robbie EADS
"The aircraft can then turn its sensors, cameras or weapons in that direction - so it allows a dialogue directly between the plane and the pilot."
Night vision Pilots from a number of countries routinely wear Striker HMSS on training exercises but it has not yet been used in combat.
BAE Systems says its helmet is the most advanced in the world but there are other companies which can make a claim to that title.
California-based Vision Systems International (VSI) has created a helmet-mounted display called HMDS Gen II, specifically designed for the F-35 Joint Strike Fighter stealth jet, which is currently under development.
The plane has been designed without a head-up display, so getting the right HMD is paramount.
Like Striker, HMDS Gen II integrates infrared imaging, night vision and a virtual HUD, showing data right in front of the pilot's eyes.
A RAF pilot wearing a Striker helmet on a Eurotyphoon jet in Malaysia BAE Systems' Striker helmet has been designed to help the pilot communicate with the fighter jet
"All of the plane's sensors along with a set of cameras mounted on the jet's outer surfaces feed the system, providing the pilot with X-ray vision-like imagery," says David Cenciotti, a military aviation journalist and former Italian Air Force officer.

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In real life, there is simply no reset button”
Andrew Brookes Retired RAF pilot
"He can see in all directions, and through any surface, with all the information needed to fly the plane and to cue weapons projected on to the visor."
"The most used helmet-mounted display in the world is JHMCS, also made by VSI."
Playing the game In future, full-display helmets could lead to the deployment of unmanned drones from the sky, says Peter Robbie, vice-president of business development at European aerospace and defence firm EADS.
"If you're flying a fighter plane with a helmet-mounted display, you could actually control a UAV [unmanned aerial vehicle] equipped with weapons from the jet," he says.
Alan Jowett of BAE Systems explains how the Striker generation of helmets is tested
"The UAV would be an additional weapons carrier, and the pilot could pass targeting information to it.
"So if he sees a target, by pressing a button it would become the unmanned vehicle's target. The pilot could authorise it to drop a missile and then monitor through his helmet where it is going to go.
"This type of monitoring already happens now - the pilot has a laser pointed on to the target, and it is what the weapon goes after. If at the last minute he sees, for instance, an ambulance turn up, he can make the weapon miss the target."
Such developments, along with the pinpoint accuracy of missiles on a modern aeroplane, could help save lives by reducing collateral damage.
But one retired RAF pilot says that adopting too much technology worries him.
"The biggest computer in my day, in the 1970s and 1980s, was the human brain. Now the human brain is in the business of managing all the data the plane is feeding to it," says Andrew Brookes, a former wing commander.
F-35 fighter jet The F-35 has been designed without a head-up display
"You're not flying - the computer does the flying. You just sit in an armchair, so to speak, and manage the battle space, manage all the inputs that are coming around from miles away, and a lot of it is fused under the screen in the helmet in front of your eyes.
"And while the precision power is awesome, and the intelligence-gathering capability is awesome, you become an all-seeing being in the sky.
"That's frightening when you think about it - as everything becomes more technological, there's less and less of the human flying element, and some people may not realise they are making a transition from a video game in their living room to a big video game in a conflict.
"And in real life, there is simply no reset button."

Raised in darkness, MBA student set to launch UP village into cyber space

MBA student from remote village among 7 students to win Rs 1.5 lakh in all-India contest

The place 22-year-old Shailesh Nirala calls home is 20 km from a college and the nearest bookstore, 15 km from the closest cyber café, 10 km from a bank, and has only recently started getting electricity for 12 hours a day.

On September 18, Nirala would take a train home - in Dhuska village, Uttar Pradesh - and walk 10 km to the nearest bank to ensure that no one from his village will have to walk 15 km for internet access again.

Nirala was one of seven B-school students - out of 450 contenders from across the country - who won Rs 1.5 lakh in the Godrej LOUD contest held in Vikhroli on Thursday.

Nirala, in his winning presentation, had expressed desire to set up an information centre in Dhuska to help villagers browse through newspapers, magazines, employment websites and access information about agricultural practices.

After spending his first 12 years in Dhuska, Nirala had got a scholarship to finish his schooling in Bokaro, Jharkhand, where, for the firs time, he saw a computer and learnt English.

The youngest of four children of a farmer, Nirala paid his way through BBA by working as a bank assistant. Currently pursuing an MBA at Indian Institute of Foreign Trade (IIFT), Delhi, Nirala said, "People say mean things to students who manage to make their way out of the village. They assume their lack of exposure means they are not bright. The only reason I was able to get this far was because I managed to top my school and get a scholarship."

"Of the 2,000-odd residents, few manage to achieve enough to get out of the village and even fewer go back to help others," he said.  "I have spoken to the village panchayat and they have arranged for a room for setting up the communication centre. I'd been trying to find funding for the project since last year," he said. He plans to install two computers with printers, webcam and Internet connection within a week of returning to his village from Mumbai on September 18.



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