September 21, 2013
Mohenjo
Medical
amazon, bbc, bbc news, brain, brain cell, brain repair, Brain Science, brain's circuitry, business, Business News, Cell (biology), cell death, Death, Dr Chiara Cirelli, Hotels, immature oligodendrocytes, Journal of Neuroscience, Myelin, oligodendrocytes, rapid eye movement, rapid eye movement sleep, REM sleep, research, Science, Science News, Scientists, Sleep, sleep lab, stress responses, technology, Technology News, travel, University of Wisconsin, vacation, why we need to sleep, Wisconsin, wisconsin team, www bbc co uk, your brain
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Scientists believe they have discovered a new reason why we need to sleep – it replenishes a type of brain cell.
Sleep ramps up the production of cells that go on to make an insulating material known as myelin which protects our brain’s circuitry.
The findings, so far in mice, could lead to insights about sleep’s role in brain repair and growth as well as the disease MS, says the Wisconsin team.
The work is in the Journal of Neuroscience.
Dr Chiara Cirelli and colleagues from the University of Wisconsin found that the production rate of the myelin making cells, immature oligodendrocytes, doubled as mice slept.
The increase was most marked during the type of sleep that is associated with dreaming – REM or rapid eye movement sleep – and was driven by genes.
In contrast, the genes involved in cell death and stress responses were turned on when the mice were forced to stay awake.
Precisely why we need to sleep has baffled scientists for centuries. It’s obvious that we need to sleep to feel rested and for our mind to function well – but the biological processes that go on as we slumber have only started to be uncovered relatively recently.
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July 7, 2013
Mohenjo
Medical
"gobsmacked", "gobsmacked" when liver buds, amazon, bbc, bbc news, bladders, bladders made from their own cells, buds, business, climate, earliest stage organ's development, Health, Hotels, human livers, human livers from stem cells, Japan, kidneys, liver failure, medicine, nature, organ donors, research, reverse liver failure, Science, Science News, Scientists, scientists in Japan, stem cells, technology, Technology News, travel, vacation, www bbc co uk
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Tiny functioning human livers have been grown from stem cells in the laboratory by scientists in Japan.
They said they were “gobsmacked” when liver buds, the earliest stage of the organ’s development, formed spontaneously.
The team, reporting their findings in Nature, hope that transplanting thousands of liver buds could reverse liver failure.
Experts welcomed the findings, describing them as “exciting”.
Scientists around the world are trying to grow organs in the lab to overcome a shortage of organ donors.
Some patients already have bladders made from their own cells, but dense solid organs such as the liver and kidneys are much harder to produce.
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http://www.bbc.co.uk/news/health-23158955
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June 28, 2013
Mohenjo
Technical
amazon, aviation, Battery Box General Electric, bbc, bbc news, broken the world land speed record, business, cars, celebrities, Chief executive Lord Drayson, Drayson Racing Technologies, electric car, Environment, Future, General Electric, Green News, Health, highlight electronic vehicle technology, Hotels, land speed record, Le Mans 24, lightweight electric car, Lola B12 69/EV vehicle, Lord Drayson, Nissan unveiled the Zeod RC, petrol power, Racing Technologies, RAF Elvington in Yorkshire, research, Science, Science News, technology, Technology News, top speed of 204.2mph, transportation, travel, vacation, Video, world land speed record, www bbc co uk, Yorkshire, Zero Emission On Demand Racing Car
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Drayson Racing Technologies has broken the world land speed record for a lightweight electric car.
Its Lola B12 69/EV vehicle hit a top speed of 204.2mph (328.6km/h) at a racetrack at RAF Elvington in Yorkshire.
Chief executive Lord Drayson, who was behind the wheel, said the achievement was designed to highlight electronic vehicle technology’s potential.
The previous 175mph record was set by Battery Box General Electric in 1974.
Drayson Racing is not the only electric vehicle-maker hoping to use motorsport to spur on adoption of the technology.
Last week Nissan unveiled the Zeod RC (Zero Emission On Demand Racing Car), which can switch between electric and petrol power.
The firm intends to enter the vehicle into next year’s Le Mans 24 race saying the competition would act as a “challenging test bed” for technologies that could eventually find their way into road cars.
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http://www.bbc.co.uk/news/technology-23051252
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June 8, 2013
Mohenjo
Medical
10 year old girl, amazon, Associated Press, bbc, business, current-events, cystic fibrosis, dangerous precedent, end-stage cystic fibrosis, Health, Hotels, Janet Murnaghan, lung transplant, medicine, mental-health, murnaghan, Obama Administration, organ transplant lists, politics, prime spot, receive an adult lung transplant, research, Sarah Murnaghan, Science, Science News, severely-ill 10-year-old girl, technology, Technology News, three months with end-stage cystic fibrosis, travel, US federal judge, vacation, www bbc co uk
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A US federal judge has allowed a severely-ill 10-year-old girl a prime spot on the list to receive an adult lung transplant, despite her young age.
Sarah Murnaghan has been in hospital for three months with end-stage cystic fibrosis, but children under 12 are given last priority for adult lungs.
The Obama administration had declined to intervene. Analysts warn the judge’s decision sets a dangerous precedent.
The judge’s order does not guarantee a lung for Sarah.
“We are beyond thrilled,” Janet Murnaghan, the girl’s mother, told the Associated Press. “Obviously we still need a match.”
Some medical analysts say the judge’s intervention creates a dangerous precedent for others on organ transplant lists.
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http://www.bbc.co.uk/news/world-us-canada-22801655
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May 10, 2013
Mohenjo
Medical
amazon, aviation, bbc, bbc news, business, child mortality, climate, current-events, Education, Finland, Health, Hotels, In India over 300000 babies die, libya, maternal health, medicine, mental-health, Norway, one child in seven dying, one woman in 30 dying, politics, research, Save The Children, Science, Science News, sub-Saharan Africa, Sweden, technology, Technology News, transportation, travel, vacation, www bbc co uk
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The Democratic Republic of Congo is the world’s toughest place to raise children, Save the Children reports.
Finland was named the best place to be a mother, with Sweden and Norway following in second and third places.
The charity compared factors such as maternal health, child mortality, education and income in 176 countries.
In India, over 300,000 babies die within 24 hours of being born, accounting for 29% of all newborn deaths worldwide, the report says.
The 10 bottom-ranked countries were all from sub-Saharan Africa, with one woman in 30 dying from pregnancy-related causes on average and one child in seven dying before his or her fifth birthday.
In DR Congo, war and poverty have left mothers malnourished and unsupported at the most vulnerable time of their lives.
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http://www.bbc.co.uk/news/world-africa-22430608
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April 7, 2013
Mohenjo
Technical
aid workers, amazon, areas of conflict, aviation, bbc, bbc news, bracelet, business, civil rights, Civil Rights Defenders, gadgets, Google, hi-tech, hi-tech bracelet, Hotels, internet, libya, messages to Facebook and Twitter, personal alarm uses phone and sat-nav, politics, research, risk of being kidnapped, risk of being kidnapped or killed, risk of being killed, sat-nav technology, Science, Science News, technology, Technology News, transportation, travel, vacation, war zones, www bbc co uk
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A hi-tech bracelet could soon be helping civil rights and aid workers at risk of being kidnapped or killed.
When triggered, the personal alarm uses phone and sat-nav technology to warn that its wearer is in danger.
Warnings are sent in the form of messages to Facebook and Twitter to rally support and ensure people do not disappear without trace.
The first bracelets are being given out this week and funding is being sought to make many more.
The bracelets have been developed by the Civil Rights Defenders campaign group in a bid to help workers in war zones and other areas of conflict.
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http://www.bbc.co.uk/news/technology-22038012
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April 5, 2013
Mohenjo
Medical
amazon, antibodies, attacking HIV, bbc, bbc news, body's immune system, body's own "training manual", business, climate, gaming, Health, HIV mutates, HIV Research, HIV/AIDS, immune system, journal Nature, medicine, Mutants, nature, neutralise huge swathes of HIV mutants, onslaught, patient's immune system, patients develop highly effective antibodies, research, Science, Science News, technology, Technology News, travel, vacation, videogames, www bbc co uk
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The body’s own “training manual” for attacking HIV has been recorded by US scientists and it is hoped it can be used to design vaccines.
HIV mutates in order to survive the onslaught of a patient’s immune system.
However, some patients develop highly effective antibodies that can neutralise huge swathes of HIV mutants.
A North Carolina team analysed the arms race between body and virus, published in the journal Nature, and has shown how these antibodies are made.
When someone is infected with HIV, their body produces antibodies to attack it. But the virus mutates and evades the offensive, so the body produces new antibodies that the virus then evades and the war goes on.
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http://www.bbc.co.uk/news/health-22002455
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March 27, 2013
Mohenjo
Technical
aloisio, amazon, app, app created by a UK teenager, bbc, bbc news, business, gaming, Google, Hotels, media, mobile products, Mr D'Aloisio, news stories, old nick, popular media companies, research, Science, Science News, summarises news stories, summly, Summly app summarises news stories, technology, Technology News, travel, vacation, Video, web giant yahoo, www bbc co uk, Yahoo
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An app created by a UK teenager has been acquired by web giant Yahoo in a deal the BBC understands to be worth “dozens of millions” of pounds.
Seventeen-year-old Nick D’Aloisio’s Summly app summarises news stories from popular media companies.
Neither company would disclose the terms of the deal publicly.
The app itself will now close, but its features will be used in mobile products at Yahoo, where Mr D’Aloisio has been given a job.
He will be joined by several of Summly’s “top staff” in new roles at Yahoo in the next few weeks.
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http://www.bbc.co.uk/news/technology-21924243
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March 27, 2013
Mohenjo
Technical
amazon, anti-cyber, aviation, bbc, bbc news, business, climate, companies seeking secrets, costing billions of pounds, criminals, GCHQ, Hotels, internet, libya, MI5, politics, research, Science, Science News, secure web-portal, technology, Technology News, transportation, travel, UK networks are attacked by other states, vacation, www bbc co uk
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A new initiative to share information on cyber threats between businesses and government is to be launched.
It will include experts from government communications body GCHQ, MI5, police and business and aims to better co-ordinate responses to the threats.
There will be a secure web-portal to allow access to shared information in real time, like a “secure Facebook”.
UK networks are attacked by other states, criminals and companies seeking secrets, costing billions of pounds.
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http://www.bbc.co.uk/news/uk-21945702
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March 17, 2013
Mohenjo
Science
"functionally cure" HIV, amazon, baby girl, bbc, bbc news, blogging, business, gaming, Health, HIV, HIV "functionally cure", HIV infection, HIV virus resurging, Hotels, medicine, news health, rapid treatment, Rapid treatment after HIV infection, research, Science, Science News, technology, Technology News, travel, vacation, videogames, www bbc co uk
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Rapid treatment after HIV infection may be enough to “functionally cure” about a 10th of those diagnosed early, say researchers in France.
They have been analysing 14 people who stopped therapy, but have since shown no signs of the virus resurging.
It follows reports of a baby girl being effectively cured after very early treatment in the US.
However, most people infected with HIV do not find out until the virus has fully infiltrated the body.
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http://www.bbc.co.uk/news/health-21783945
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