sciencehabit writes "For what may be the first time, fMRI scans of brain activity have been used as evidence in the sentencing phase of a murder trial. Defense lawyers for an Illinois man convicted of raping and killing a 10-year-old girl used the scans to argue that their client should be spared the death penalty because he has a brain disorder. Some experts say the scans are irrelevant because they were taken 20+ years after the crimes were committed. Others point out that the scans are only being considered because the sentencing phase of a trial has less stringent standards about evidence than those used to establish a defendant's innocence or guilt." In the Illinois case, the fMRI defense didn't help the defendant, whom a jury sentenced to death.Read more of this storyat Slashdot.

  Researchers from the School of Medicine at the University of California have shown that the more germs a child is exposed to, the better their immune system in later life. Their study found that keeping a child's skin too clean impaired the skin's ability to heal itself. From the article: "'These germs are actually good for us,' said Professor Richard Gallo, who led the research. Common bacterial species, known as staphylococci, which can cause inflammation when under the skin, are 'good bacteria' when on the surface, where they can reduce inflammation."Read more of this storyat Slashdot.

  eldavojohn writes "Petr Horava, a physicist at the University of California in Berkeley, has a new theory about gravity and spacetime. At high energies, it actually snips any ties between space and time, yet at low energies devolves to equivalence with the theory of General Relativity, which binds them together. The theory is gaining popularity with physicists because it fits some observations better than Einstein's or Newton's solutions. It better predicts the movement of the planets (in an idealized case) and has a potential to create the illusion of dark matter. Another physicist calculated that under Horava Gravity, our universe would experience not a Big Bang but a Big Bounce — and the new theory reproduces the ripples from such an event in a way that matches measurements of the cosmic microwave background."Read more of this storyat Slashdot.

  Sockatume writes "The UK's Human Genetics Commission has published its report on the collection of DNA by the Police forces in England and Wales. Currently, Police collect DNA from every suspect in a case which could lead to a criminal record, and retain that material, which the European Court of Human Rights has ruled illegal. The government plans to keep all DNA samples for suspects from England, Wales and Northern Ireland for up to six years, except for DNA from individuals arrested during terrorism-related investigations, which will be retained forever. The report states that the police frequently performed arrests solely to collect DNA, that certain demographics (such as young, black men) were 'very highly over-represented,' that there was 'very little concrete evidence' that the DNA database had any actual use in investigating crime, and that the database contained material from individuals arrested in Scotland and Northern Ireland, outside its remit. Of the 4.5m individuals in the database, a fifth have never received any convictions or cautions from the Police. The report recommends that an independent advisory body oversee the database, and that laws be passed to limit the uses of the database, while tracking those with access to it, and making misuse of the information a criminal offence."Read more of this storyat Slashdot.

  coondoggie writes "A radiation-proof Cisco router was sent into space today aboard an Intelsat satellite with the goal of setting up military communications from space. The router/satellite combo is a key part of the US Department of Defense's Internet Routing In Space (IRIS) project, which aims to route IP voice, video and data traffic between satellites in space in much the same way packets are moved on the ground, reducing delays, saving on capacity and offering greater network flexibility, Cisco stated."Read more of this storyat Slashdot.

  MikeChino writes "The much-hyped Solar Impulse airplane just completed its first runway test, paving the way for a 20-to-25-day trip around the world next year. Conceived by Bertrand Piccard, the single-pilot plane successfully used its four solar powered motors to taxi around the runway. If all goes according to plan the plane will be able to fly day and night without fuel, signaling a bright future for solar-powered flight."Read more of this storyat Slashdot.

  Pickens writes "The NY Times reports that a program to detect plutonium or uranium in shipping containers has stalled because the United States has run out of helium 3, a crucial raw material needed to build the 1,300 to 1,400 machines to be deployed in ports around the world to thwart terrorists who might try to deliver a nuclear bomb to a big city by stashing it in one of the millions of containers that enter the United States every year. Helium 3 is an unusual form of the element that is formed when tritium, an ingredient of hydrogen bombs, decays — but the government mostly stopped making tritium in 1989 after accumulating a substantial stockpile of Helium 3 as a byproduct of maintaining nuclear weapons. 'I have not heard any explanation of why this was not entirely foreseeable,' says Representative Brad Miller, chairman of a House subcommittee that is investigating the problem. Helium 3 is not hazardous or even chemically reactive, and it is not the only material that can be used for neutron detection. The Homeland Security Department has older equipment that can look for radioactivity, but it does not differentiate well between bomb fuel and innocuous materials that naturally emit radiation like cat litter, ceramic tiles and bananas — and sounds false alarms more often. In a letter to President Obama, Miller called the shortage 'a national crisis' and said the price had jumped to $2,000 a liter from $100 in the last few years. With continuing concern that Al Qaida or other terrorists will try to smuggle a nuclear weapon into the United States, Congress has mandated that, by 2012, all containers bound for the US be inspected overseas."Read more of this storyat Slashdot.

  An anonymous reader writes "Only four days after the first attempt to send a particle beam around the LHC, we have arrived at the point when all four experiments got their first real collisions from the machine. This was met by celebrations and champagne, as people have been waiting years and years for this moment. It is a testament to the engineering of the machine that collisions were reached already, so few days after restarting. The LHC had already demonstrated ca 10h stable beams, and now also stable beams in both directions at the same time. In the coming weeks, we need only wait for increased intensity and the first attempts at acceleration."Read more of this storyat Slashdot.

  In a speech at the White House today, President Obama launched a new campaign, "Educate to Innovate," designed to get American students fired up about science, technology, engineering, and math (STEM). The full text of the speech is also available on whitehouse.gov. "The new campaign builds on thePresident's Inaugural Address, which included a vow to put science 'in its rightful place.' One of those rightful places, of course, is the classroom. Yet too often our schools lack support for teachers or the other resources needed to convey the practical utility and remarkable beauty of science and engineering. As a result, students become overwhelmed in their classes and ultimately disengaged. They lose, and our nation loses too. The partnerships launched today aim to change that. They respond to a challenge made by the President in April, when he spoke at the annual meeting of the National Academy of Sciences and asked the nation's philanthropists, professional and educational societies, corporations, and individuals to collaborate and innovate with the goal of reinvigorating America's STEM educational enterprise. The partnerships announced today — dramatic commitments in the hundreds of millions of dollars, generated through novel collaborations and creative outreach activities — are just the first wave of commitments anticipated in response to his call."Read more of this storyat Slashdot.

  The Wall Street Journal is reporting that a series of hacked emails and documents that were recently posted on Wikileaks are causing quite a stir in the scientific community. All told, more than 1,000 emails and 2,000 documents were stolen from the Climate Research Unit in East Anglia University in the U.K. "The emails include discussions of apparent efforts to make sure that reports from the Intergovernmental Panel on Climate Change, a United Nations group that monitors climate science, include their own views and exclude others. In addition, emails show that climate scientists declined to make their data available to scientists whose views they disagreed with. [] Phil Jones, the director of the East Anglia climate center, suggested to climate scientist Michael Mann of Penn State University that skeptics' research was unwelcome: We 'will keep them out somehow -- even if we have to redefine what the peer-review literature is!' Neither man could be reached for comment Sunday."Read more of this storyat Slashdot.

  0xdeadbeef writes "Two weeks ago, MIT artist-in-residence Joe Davis used the Arecibo radio telescope to send a message to three stars in honor of the 35th anniversary of the famous Drake-Sagan transmission to M13 in 1974. It was apparently allowed but not endorsed by the director of the facility, and used a jury-rigged signal source on what will now be known as the 'coolest iPhone in the world.' The message encoded a DNA sequence, but no word yet on whether it disabled any alien shields. You can get the low-down on Centauri Dreams: Part 1, Part 2."Read more of this storyat Slashdot.

  pdclarry writes "A recent study by scientists at the American Museum of Natural History and Columbia University found that a piece of tuna sushi may not be tuna at all: 'A piece of tuna sushi has the potential to be an endangered species, a fraud or a health hazard,' wrote the authors. 'All three of these cases were uncovered in this study.' The study, published in PLoS ONE examined 68 samples of tuna sushi purchased from 31 restaurants in Manhattan (New York City) and Denver, Colorado. Some of these were from endangered species, others were not as labeled, and some were not tuna at all. Of these last, five samples labeled as 'white tuna' were from a toxic fish, Escolar, which is a gempylid species banned for sale in Italy and Japan due to health concerns. 'It can cause gastrointestinal symptoms ranging from mild and rapid passage of oily yellow or orange droplets, to severe diarrhea with nausea and vomiting. The milder symptoms have been referred to as keriorrhea [i.e. flow of wax in Greek].' Fraud in sushi is not new; Slashdot also reported study on mislabeling in 2008. This new study shows that some sushi can actually make you sick. The study was also covered by Wired."Read more of this storyat Slashdot.

  ElectricSteve writes "Scientists at Cornell University report they can now use a light beam carrying a single milliwatt of power to move objects and even change the optical properties of silicon from opaque to transparent at the nanometric scale." As the article says, such an advancement "could prove very useful for the future of micro-electromechanical (MEMS) and micro-optomechanical (MOMS) systems."Read more of this storyat Slashdot.

  jamie writes with this snippet from the UK's Independent: "The world is now firmly on course for the worst-case scenario in terms of climate change, with average global temperatures rising by up to 6C by the end of the century, leading scientists said yesterday. ... [The study] found that there has been a 29 per cent increase in global CO2 emissions from fossil fuel between 2000 and 2008, the last year for which figures are available. On average, the researchers found, there was an annual increase in emissions of just over 3 per cent during the period, compared with an annual increase of 1 per cent between 1990 and 2000. Almost all of the increase this decade occurred after 2000 and resulted from the boom in the Chinese economy. The researchers predict a small decrease this year due to the recession, but further increases from 2010."Read more of this storyat Slashdot.