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Wheelchair thought that handles the embryonic stem

Just a simple thought in order to move from one place to another in your home or your office, on an automated wheelchair that can read brain activity.

This is not science fiction, but a project carried out by the laboratory's artificial intelligence and robotics Politecnico of Milan , intended for those who have restricted in mobility.

The wheelchair is connected to an interface system between brain and computer, which analyzes the electrical signals recorded from a headset with electrodes. To make a move is necessary to observe the screen, connected to the automated chair, which has from time to time a series of words on the home environment. It should be noted the word enlightened and focus at this point, the system recognizes the response to light stimulus.

For the moment, the wheelchair prototype works only and exclusively in a closed environment, I wonder if in a not too distant future people with disabilities can use the mobile device in open spaces.

For further information:
http://www.galileonet.it/news/11044/penso-dunque-muovo

Translation Tay Du Ky

The first incandescent light bulb, was stranded for a carbon rod immersed in a glass ampoule which was done in a vacuum. Under these conditions the filament incandescent light produced when it was crossed by the current and did not burn because of the lack of oxygen. The coal to emit light over a large heat generated. Edison as a material for the wire experienced over time chips of wood, celluloid, coconut fibers, cork, string and even hair beard. Ultimately, the problem still remains the same, the amount of electricity consumed by a light bulb turns on the heat and 85% in only 15% into light.

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to treat spinal injuries

The era of Barack Obama restores lifeblood of scientific research In fact comes the news that the U.S. has been given the green light to the first experiment on human embryonic stem cells to treat patients with paralyzing spinal cord injury.

The Food and Drug Administration, the U.S. government agency that deals with regulation of food and pharmaceuticals, authorized the pharmaceutical California Geron starting by summer 2009, the testing phase of the treatment on a small number of people.

will be injected into the spinal cells extracted from embryonic tissue, in order to stimulate the regrowth of damaged nerves and restore the smooth functioning of the spinal cord. The only downside is the fact that therapy is not effective in these patients with recent injuries.

For further information:

http://www.aduc.it/dyn/salute/noti.php?id=247604

http://www.repubblica.it/ 2009/01/sezioni/scienze/staminali/staminali/staminali.html .

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Annual Meeting 2009 in memory of Darwin

" Our Planet and Its Life: Origins and Futures " is the main theme of the Annual Meeting held in Chicago (USA) 12 to 16 February 2009.

The event is organized dall'AAAS (which stands for American Association Advancing Science, Serving Society) as part of international celebrations for the 200th anniversary of the birth of Charles Darwin and 150 ° anniversary of the publication of the treatise "The Origin of Species by Means of Natural Selection" (On the Origin of Species by Means of Natural Selection).

There will be seminars, workshops and lectures given by world-renowned scientists who will explain the importance of Darwin's theories today.

For further information:

http://www.aaas.org/meetings/

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Beer Space .... or publicity stunt?

Leafing through the magazine Vanity Fair, published by the Corriere della Sera, I stumbled upon an article written by John F. Bignami entitled "Space Beer? Better vodka."

The author is a piece of the Accademia dei Lincei, has a degree in physics and more deals space research, was also president of the Italian Space Agency.

You may wonder why this extensive preamble, to be honest I was not sure whether or not to publish the news that has such a scientific basis, but to a casual eye may seem more a publicity stunt.

I think the article is worthy of being mentioned and shown in this blog, which aims to highlight all the news from science. Let's see what you wrote Bignami.

< If you happen to visit Japan in the coming weeks, do not forget to enter the lottery for the brewery Sapporo remove the names of 60 lucky people who can drink the Space Beer. This is a seemingly normal beer, but unique because it was made with barley grown on the International Space Station. Experiments in agriculture are being made space for several years to develop cultivation techniques in the absence of gravity, to allow astronauts to travel to Mars to have salad and fresh vegetables.

Given the limited space available, the barley was grown on a few square decimetres, and the bottles are produced a few dozen. Surely Sapporo, which had sponsored the initiative, he could earn by auctioning the bottles.

Crisis or not, buyers would not be missed. Instead, the brewery Japanese preferred to use the opportunity for publicity, leaving the choice of the lucky few tasters to luck.

Not that Sapporo will become the official supplier of beer to the ISS. The absence of gravity plays awful tricks on liquids, which can not fall from the bottle into the glass but they must be sucked. Furthermore, bubbles do not move upwards to form the foam but remain suspended in the liquid, with predictably nasty results. Same is true, unfortunately, for the champagne and then nothing toast to the astronauts.

With the exception of Russians, the vodka has no bubbles >. (Source: Vanity Fair January 14, 2009)

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SOS Environment

The environmental situation of our planet is deteriorating year by year. Increases the concentration of carbon dioxide in the atmosphere, the Gulf Stream is a tantrum and threatens to cool down, while the sea level tends to rise.

These are the data from the Worldwatch Institute, one of the most prestigious U.S. research, which recently presented in Washington, a report on the health of the planet earth.

"State of the World 2009" takes stock of the situation that has arisen in a few paragraphs and summarize the major issues. Let's see what it is:

emissions

The IPCC, the UN task force of scientists, has been accused for years by the oil lobby to exaggerate the alarm tones. But from the first report on the fourth (1990 - 2007) his predictions were too conservative: the climate change beat any estimate. Even the latter figure, that for 2007, show continuous progression of the greenhouse emissions that result from the use of fossil fuels and deforestation. It has gone from 22.6 billion tons of carbon dioxide in 1990 to 31 billion in 2007: more than 37 percent. To which are added to the 6.5 billion tons resulting from deforestation. So the concentration of CO2 in the atmosphere is no longer growing at a rate of 1.5 parts per million per year but has reached more than 2.2 shares per year (source: The Republic )

seas

The loss of ice from Greenland and the Antarctic Peninsula was not included in the IPCC assessment because the margins of uncertainty about the speed of the process were considered too high. Adding this item, you get a much more alarming than the one provided Scientists from the UN: the rise of ocean levels over the current century may exceed three times the upper limit of IPCC (0.59 meters) to draw a scenario where the slope of the water is measured in meters instead of centimeters ( The source Republic);

triggers climate

are called tipping points and points of no return, the moments when the process of change takes a sudden and irreversible step in the time scale of interest ' humanity. One of these tipping points about the Gulf Stream, the great treadmill energy that heats the north-west Europe. The influx of fresh water resulting from loss of Arctic ice could block or slow down causing this current cold wave over Britain and Scandinavia (the phenomenon is described with hollywodiana exaggeration in the movie "The Day After Tomorrow"). The acidification of the oceans, which threatens many forms of marine life, is another tipping point (Source: The Republic )

care

To avoid climate chaos reaches the point where the damage become serious should stop the growth of the temperature increase to 1.4 degrees compared to pre-industrial level.

In reality it is virtually certain that this goal has now unattainable. But it might bring trouble avoiding the worst. How? The recipe is in the second part of the report, one devoted to bioclimatic buildings, increasing energy efficiency, development of renewable energy. In 2007, renewables (including hydropower) provided 18 percent of electricity worldwide (Source: The Republic ).

http://www.worldwatch.org/node/5658

http://www.repubblica.it/2009/01/sezioni/ambiente/state-of-the-world/state-of- the-world/state-of-the-world.html

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The Icelandic rock star involved in politics

Björk

After a tour of 18 months I was anxious to return for a few weeks in good, solid Iceland to enjoy a little 'stability. Earlier this year I had a concert that the intention was to raise popular awareness about the local environment, and 10% of the population took part, but did not seem enough.

So when I returned I decided to contact all the islanders who had tried unsuccessfully to create new businesses and implement new methods of ecological work. In the course of many years, the main source of income was fishing in Iceland, but when it ceased to be profitable, people started to look for other ways to earn living.

conservatives who rule the country thought that if they got their hands Iceland's natural energy to sell to large companies such as Alcoa and Rio Tinto would solve the problem.

Now we have three aluminum smelters, the largest in Europe, and over the next three years we want to build two more. These foundries will need energy from a handful of new geothermal power plants, as well as construction of dams that would damage the pristine natural area, springs and lava fields. The achievement of so much energy from these geothermal fields is not sustainable.

Many Icelanders are opposed to the construction of these smelters. In fact, would prefer continue to develop small businesses they own and do not incur this cost. In Iceland, there were many struggles to defend this case. One of these was the result that the environment minister has insisted on an environmental impact study done before building any foundry or embankment.

And then we saw the economic crisis. Young families are threatened with losing their homes and the elderly to lose their pensions. It 's something catastrophic. One feels anger. The people on the street contest the six major capital of Iceland and their critics on radio and television; furious voices insist that they sell their properties and deliver benefits to the state. It was learned that some individuals have obtained huge loans abroad without the knowledge he had the people of Iceland. Now, it seems, is the nation that must pay them back.

What exacerbates the people that those responsible for putting Icelanders in this situation are the same as trying to take away from it. Many require that you resign and allow others to restore order. The most critical is David Oddsson, who appointed himself director of the Central Bank after 19 years as mayor of Reykjavik and 13 years as prime minister. Once a week, residents gather in the capital's city center to demand his resignation.

And then, surprise, we were the victims of the spectacular blow that has dealt the prime minister of United Kingdom. I quote a petition signed by a tenth of the people of Iceland: "Gordon Brown unjustifiably used the Anti-Terrorism Act in the form against the people of Iceland for short-term political benefits. This grave situation has turned into a national disaster ... hour after hour, day after day, the actions of the British Government are indiscriminately obliterating Icelandic interests. "[1]

In general, foreign policy. I live happily in the land of music. But I became involved because the politicians seem committed to ruin the natural environment of Iceland. And last week I read that because of the crisis Icelandic MPs are lobbying to prevent the environmental assessment and can build the levees as quickly as possible so that Alcoa and Rio Tinto get the energy they need to run the two new smelters.

Iceland is a small country. Here there was the industrial revolution and I had hopes that we could avoid it altogether and move directly to sustainable high-tech options. If someone was able to do so, as we were. The Icelandic mentality has something wonderful, we are prone to risk and daring to the extreme dell'imprudenza. In making music, storytelling and creative thought, this risk-taking is a great thing. And after I introduced many small businesses to Iceland's growing, I realized that many of them have shown courage, both in the field of biotechnology to high technology.

Icelanders are people with a solid training in advanced sciences. We have ORF, which is one of the best companies in the world of biogenetic; Össur, a manufacturer of artificial limbs, FMC, a manufacturer of computer games, and other motions. We also have many doctors and health professionals. With hundreds of geiger natural gush all over the island and our (so far) almost untouched nature, Iceland could easily become a huge and luxurious resort where people go to cure their pain and rest. It would be better that the government use the money to support these companies instead of putting it in the service of Alcoa and Rio Tinto.

Flexibility is important: we should live with the three aluminum smelters that are already in operation and try to find ways to make them more environmentally friendly. But perhaps we need to have five? In the past, we have put all your eggs in one basket and this has proved to be dangerous, as we realized when 70% of our revenue came from fishing. Now we are on the brink abyss for having bet everything on finance. If we build two aluminum smelters, Iceland will be converted into the largest aluminum smelter in the world and we will be known in the world just for this. Would leave little room for anything else. And if the aluminum price collapse - as is happening - it would be catastrophic.

Iceland can be more self-sufficient and more creative and at the same time, doing things in a manner more in line with the nineteenth century XXI. You can not build levees, smaller and greener. We use this economic crisis to be fully sustainable. We teach the world all we know about the power stations geothermal energy. We support green business. Let's start from the bottom. It may be that delay to grow and give benefits, but are based on something solid, stable and independent of earthquakes on Wall Street and volatile price of aluminum.

And this will help Iceland to remain what he knows to be best: a pristine and wonderful force of nature.

Bjork
Source: http://www.rebelion.org/noticia.php?id=75884&titular=del-colapso-econ% F3mico-to-desastre-ecol-% F3gico
14:11:08

Translation from English to www.comedonchisciotte.org by RICCARDO ( http://www.alol.it )

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E 'incoming comet Lulin

Hear! Hear!

On 24 February 2009, the comet Lulin will be visible to the naked eye from earth.



Here is an excerpt of the article published by the editors of scientific Corriere della Sera:



E 'Lulin incoming comet (C/2007 N3) and is visible in its transit between the stars constellation Libra. Now only visible with instruments, promises to show in February when, on the 24th will go down in less distance from Earth (0.41 AU). Then it should be bright enough to reach the fourth magnitude, and also be visible to the naked eye.
THE DISCOVERY - When was Quanzhi discovered by Ye (Sun Yat-sen University, Guangzhou, China) who finds himself on the three images taken on July 11, 2007 by Lin Chi-Shang Institute of Astronomy of National Central University, Jung-Li of Taiwan, was described as an asteroid. But J. Young's Table Mountain Observatory in California, (USA) noted about six days after a coma with a bright central core: it was the confirmation of the nature of the comet.
TWO CODE - BG Marsden Then they calculated the orbit by successive approximations as the observations multiplied. The data suggest that it should be your first time visiting the region Lulin inner Solar System. Now it's coming, let's see if surprises in store. Meanwhile, beyond the already revealed a weaker tail light "anti-tail."