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Autism susceptibility genes identifiedTwo genes have been associated with autistic spectrum disorders (ASD) in a new study of 661 families. Researchers found that variations in the genes for two brain proteins, LRRN3 and LRRTM3, were significantly associated with susceptibility to ASD.Source: ScienceDaily: Latest Science News | 1 Apr 2010 | 12:00 pm Ashes to ashes, dust to dust: Space telescopes image remains of collapsed starA new image from NASA's Chandra and Spitzer space telescopes shows the dusty remains of a collapsed star. The dust is flying past and engulfing a nearby family of stars.Source: ScienceDaily: Latest Science News | 1 Apr 2010 | 12:00 pm 'Third gender' identified in close relative of olive treeA hitherto unknown reproductive system in a species closely related to the olive tree, Phillyrea angustifolia L., has been discovered. This new reproductive mode explains the mystery of the high frequencies (up to 50%) of male individuals co-occurring with hermaphrodite individuals in this species.Source: ScienceDaily: Latest Science News | 1 Apr 2010 | 12:00 pm Leonardo Da Vinci's 'The Last Supper' reveals more secrets"The Last Supper" -- relentlessly studied, scrutinized, satirized and one the world's most famous paintings -- is still revealing secrets. Researchers have now found new meaning to the food depicted by Leonardo Da Vinci's famous artwork.Source: ScienceDaily: Latest Science News | 1 Apr 2010 | 12:00 pm Evidence-based medicine theory can be applied to frequent flyingA professor has developed a revolutionary theory of Evidence-Based Flying, based on the well-established concept of Evidence-Based Medicine. His theory shows how number needed to fly before a delay (NNF) and number needed to upgrade (NNU) can be combined with other variables to inform wise flying decisions. Initial data shows that departure delays ranged from 20-30%, with NNF ranging from 10 to 31 flights when compared with the top performing airline.Source: ScienceDaily: Latest Science News | 1 Apr 2010 | 12:00 pm Chemical exposure before mid-30s may be critical in breast cancer developmentOccupational exposure to certain chemicals and pollutants before a woman reaches her mid-30s could treble her risk of developing cancer after the menopause, suggests new research.Source: ScienceDaily: Latest Science News | 1 Apr 2010 | 12:00 pm Giggles give clues to hyena's social statusThe giggle call of the spotted hyena tells other hyenas not only the age and identity of the animal, but also its social status, according to a new study.Source: ScienceDaily: Latest Science News | 1 Apr 2010 | 9:00 am Drug breakthrough in fight against African sleeping sicknessScientists have made a major breakthrough in identifying new treatments for a fatal disease which infects tens of thousands of Africans each year. Their findings describe a new approach to tackling the fatal parasitic disease human African trypanosomiasis (HAT), commonly known as sleeping sickness due to disturbance of the sleep cycle caused by parasites infecting the brain.Source: ScienceDaily: Latest Science News | 1 Apr 2010 | 9:00 am Dinosaur skull changed shape during growthThe skull of a juvenile sauropod dinosaur, rediscovered in museum collections, illustrates that some sauropod species went through drastic changes in skull shape during normal growth.Source: ScienceDaily: Latest Science News | 1 Apr 2010 | 9:00 am Scientists find therapeutic target to stop cancer metastasesScientists have uncovered what could be a very important clue in answering one of the most perplexing questions about cancer: why does it spread to the liver more than any other organ? In a new research report, scientists from New York University describe experimental results suggesting that the immune system may be the reason.Source: ScienceDaily: Latest Science News | 1 Apr 2010 | 9:00 am Science writer wins libel appealA science writer wins the right to rely on the defence of fair comment in a libel action in a landmark appeal.Source: BBC News | Science & Environment | UK Edition | 1 Apr 2010 | 4:17 am Simon Singh wins libel court battleScience writer accused of libel when he doubted chiropractors' claims of success in treatment of some childhood conditions The science writer Simon Singh has won his court of appeal battle for the right to rely on the defence of fair comment in a libel action. Singh was accused of libel by the British Chiropractic Association (BCA) over an opinion piece he wrote in the Guardian in April 2008. He suggested there was a lack of evidence for the claims some chiropractors make on treating certain childhood conditions including colic and asthma. The BCA alleged that Singh had in effect accused its leaders of knowingly supporting bogus treatments. In May last year, high court judge Mr Justice Eady, in a preliminary ruling in the dispute, held that Singh's comments were factual assertions rather than expressions of opinion – which meant he could not use the defence of fair comment. Today, the lord chief justice, Lord Judge, master of the rolls Lord Neuberger and Lord Justice Sedley allowed Singh's appeal, ruling that the high court judge had "erred in his approach". Singh described the ruling as "brilliant" but added: "It is extraordinary this action has cost £200,000 to establish the meaning of a few words." The Singh case has become a cause celebre for science journalism and prompted calls for reforms to the defamation law to keep it out of scientific disputes. After the ruling, Tracey Brown, spokeswoman for the Coalition for Libel Reform, said: "We are delighted with the judges' ruling but it does not go far enough. "There is a cardiologist currently being sued by a device manufacturer, we have researchers who have been unable to publish their critique of lie detector technology because of threats of libel action. "A major science journal is also currently being sued and our academics are being told to pull down blogs. "We urgently need a public interest defence so that we can all be sure of our rights as publishers, writers, authors and academics." Dr Evan Harris MP, the Liberal Democrat MP, said: "This sensible judgment is no substitute for fundamental law reform. It is no kind of justice for a scientist to spend £200,000 and two years of his life just to get halfway through a case. The political parties must now all commit to reform of the law to free scientific speech and responsible journalism from the threat of penury." guardian.co.uk © Guardian News & Media Limited 2010 | Use of this content is subject to our Terms & Conditions | More Feeds Source: Science news, comment and analysis | guardian.co.uk | 1 Apr 2010 | 3:59 am Ordnance Survey offers free dataMapping agency Ordnance Survey frees up more data for re-use by the public as part of a government initiative.Source: BBC News | Science & Environment | UK Edition | 1 Apr 2010 | 3:52 am The nation's weather (AP)
Source: Yahoo! News: Science News | 1 Apr 2010 | 3:20 am Mysterious monkey 'loves bamboo'Ethiopia's mysterious Bale monkey eats almost nothing but bamboo leaves, according to the first study of the primate.Source: BBC News | Science & Environment | UK Edition | 1 Apr 2010 | 2:47 am Recharging debate, Obama expands offshore drilling (AP)
Source: Yahoo! News: Science News | 1 Apr 2010 | 12:30 am Mars rover Spirit misses communication session (AP)AP - The aging, sand-trapped Mars rover Spirit failed to make a scheduled communication this week and may have gone into a power-saving hibernation to survive the Red Planet's winter, NASA's Jet Propulsion Laboratory said Wednesday.Source: Yahoo! News: Science News | 31 Mar 2010 | 9:53 pm Everglades deal in jeopardy after judge's ruling (AP)AP - Gov. Charlie Crist's grand plan to revive the dying Florida Everglades by buying back the land is in jeopardy after a federal judge Wednesday ordered the state to resume construction on a multimillion-dollar restoration project.Source: Yahoo! News: Science News | 31 Mar 2010 | 9:52 pm Working-Memory Gene Linked to Schizophrenia (HealthDay)HealthDay - WEDNESDAY, March 31 (HealthDay News) -- Schizophrenia may be caused by a genetic mutation that disrupts communication between the hippocampus and prefrontal cortex regions, areas of the brain involved in working memory, U.S. researchers report.Source: Yahoo! News: Science News | 31 Mar 2010 | 9:49 pm Human Genome Turns 10 (HealthDay)HealthDay - WEDNESDAY, March 31 (HealthDay News) -- A decade after the sequencing of the human genome, scientists muse on how far they've come and how far there is still to go.Source: Yahoo! News: Science News | 31 Mar 2010 | 9:49 pm Obama plan expands offshore oil drilling (AFP)
Source: Yahoo! News: Science News | 31 Mar 2010 | 9:14 pm Ships face new emissions rules in North American waters (Y! Green)Y! Green - The EPA and the International Maritime Organization have announced stricter emissions regulations for ships operating in the waters off the coast of the U.S. and Canada.Source: Yahoo! News: Science News | 31 Mar 2010 | 7:58 pm Princess Diana Family Home Treasures to be SoldDiana, Princess of Wales, was just 36 years old when she died in a car accident with her companion, Dodi Fayed, in 1997. I had seen her, some 10 years earlier, in a few private moments, and can attest how ...Source: Discovery News - Top Stories | 31 Mar 2010 | 7:52 pm Three Flavors of 'Icequakes' Found Rumbling Through GlaciersScientists have discovered new types of "ice quakes" that help them monitor glacier behavior.Source: Discovery News - Top Stories | 31 Mar 2010 | 7:35 pm To scientists, laughter is no joke it's serious (AP)
Source: Yahoo! News: Science News | 31 Mar 2010 | 7:31 pm Judge OKs 2 new hospitals in historic New Orleans (AP)AP - A judge has allowed two hospitals to be built to replace ones damaged by Hurricane Katrina despite objections by preservationists that the projects would wipe out a historic New Orleans neighborhood.Source: Yahoo! News: Science News | 31 Mar 2010 | 6:45 pm Hot Pink Flamingos & Other Colorful Animals Featured in New Exhibit (Photos)Hot pink flamingos and other colorful animals are featured in a new Monterey Bay Aquarium exhibit that shows how climate change is affecting species. Please check out this photo preview.Source: Discovery News - Top Stories | 31 Mar 2010 | 6:32 pm Blueprint of the songbird genomeScientists create a "blueprint" of a songbird genome, revealing evolutionary clues about vocal communication.Source: BBC News | Science & Environment | UK Edition | 31 Mar 2010 | 5:48 pm Sleeping sickness 'breakthrough'Scientists identify a potential treatment for sleeping sickness, which infects about 60,000 people in Africa a year.Source: BBC News | Science & Environment | UK Edition | 31 Mar 2010 | 5:40 pm Future funding for agricultural research uncertainFinancial donors wrangle over global research group's strategy.<img src="http://feeds.feedburner.com/~r/news/rss/today/~4/C4Lrtcvcs8Y" height="1" width="1"/>Source: NatureNews - All articles published today - nature.com science feeds | 31 Mar 2010 | 4:08 pm iPad Already Changing the Way Web Sites Are BuiltThe iPad is already having an impact on business models.Source: Livescience.com | 31 Mar 2010 | 3:51 pm Bread Mold Genes Shed Light on Human Internal ClockBread mold genes could help scientists better understand the human biological clock.Source: Livescience.com | 31 Mar 2010 | 3:46 pm Songbird genome may shed light on speech disordersLONDON (Reuters) - Scientists have cracked the genetic code of a songbird for the first time, identifying more than 800 genes linked to song learning in a finding that may shed light on human speech disorders.Source: Reuters: Science News | 31 Mar 2010 | 3:11 pm Atomic clocks use quantum timekeepingEntanglement could make state-of-the art clocks more precise.Source: NatureNews - All articles published today - nature.com science feeds | 31 Mar 2010 | 3:01 pm Lights, camera, action for cellsTime-lapse films reveal the functions of human genes.Source: NatureNews - All articles published today - nature.com science feeds | 31 Mar 2010 | 3:01 pm River reveals chilling tracks of ancient floodWater from melting ice sheet took unexpected route to the ocean.Source: NatureNews - All articles published today - nature.com science feeds | 31 Mar 2010 | 3:01 pm The Amazonian tribe that can only count up to fiveDoes a group of indigenous South Americans hold the key to our relationship with maths? Here, an extract from an enlightening new book explains why it just might When I walked into Pierre Pica's cramped Paris apartment, I was overwhelmed by the stench of mosquito repellent. Pica, a linguist, had just returned from spending five months with a community of Indians in the Amazon rainforest, and he was disinfecting the gifts he had brought back. I asked how the trip had been. "Difficult," he replied. For the last 10 years, the focus of Pica's work has been the Munduruku: an indigenous group of about 7,000 people in the Brazilian Amazon whose language has no tenses, no plurals and no words for numbers beyond five. To get to the Munduruku, Pica had to wait for some locals to take him to their territory by canoe. "How long did you wait?" I inquired. "I waited quite a lot. But don't ask me how many days." "So, was it a couple of days?" I suggested tentatively. A few seconds passed as he furrowed his brow: "It was about two weeks." The more I pushed Pica for facts and figures, the more reluctant he was to provide them. "When I come back from Amazonia, I lose sense of time and sense of number, and perhaps sense of space." This inability to give me quantitative data was part of his culture shock. He had spent so long with people who can barely count that he had lost the ability to describe the world in terms of numbers. No one knows for certain, but numbers are probably no more than about 10,000 years old. By this, I mean a working system of words and symbols for numbers. One theory is that such a practice emerged together with agriculture and trade, as numbers were an indispensable tool for taking stock and making sure you were not ripped off. Numbers are so prevalent in our lives that it is hard to imagine how people survive without them. Yet while Pica stayed with the Munduruku, he easily slipped into a numberless existence. He slept in a hammock. He went hunting and ate tapir, armadillo and wild boar. He told the time from the position of the sun. If it rained, he stayed in; if it was sunny, he went out. There was never any need to count. Still, I thought it odd that numbers larger than five did not crop up at all in Amazonian daily life. What if you ask a Munduruku with six children how many kids they have? "He will say, 'I don't know,'" Pica said. "It is impossible to express." Anyway, he added, the issue was a cultural one. It was not the case that the Munduruku counted his first child, his second, third, fourth and fifth, and then scratched his head because he could go no further. For the Munduruku, the whole idea of counting children is ludicrous. Why would a Munduruku adult want to count his children? They are looked after by all the adults in the community, Pika said, and no one is counting who belongs to whom. The reason for researching the mathematical abilities of these people who count only on one hand is to discover the nature of our basic numerical intuitions. In one of his most fascinating experiments, Pica examined the Indians' spatial understanding of numbers. How did they visualise numbers when spread out on a line? In the modern world we do this all the time – on tape measures, rulers, graphs and houses along a street. Pica tested them using sets of dots on a screen. Each volunteer was presented with a figure of an unmarked line. To the left side of the line was one dot; to the right, 10 dots. Each volunteer was then shown random sets of between one and 10 dots. For each set, the subject had to point at where on the line he or she thought the number of dots should be located. Pica moved the cursor to this point and clicked. Through repeated clicks, he could see exactly how the Munduruku spaced numbers between one and 10. When American adults were given this test, they placed the numbers at equal intervals along the line. The Munduruku, however, responded quite differently. They thought that intervals between the numbers started large and became progressively smaller as the numbers increased. It is generally considered a self-evident truth that numbers are evenly spaced. It is the basis of all measurement and science. Yet the Munduruku visualise magnitudes in a completely different way. When numbers are spread out evenly on a ruler, the scale is called linear. When numbers get closer as they get larger, the scale is called logarithmic. And it turns out the logarithmic approach is not exclusive to Amazonian Indians – we are all born conceiving numbers this way. In 2004, Robert Siegler and Julie Booth at Carnegie Mellon University in Pennsylvania presented a similar version of the number-line experiment to a group of kindergarten pupils (average age: 5.8 years), first-graders (6.9) and second-graders (7.8). The results showed in slow motion how familiarity with counting moulds our intuitions. The kindergarten pupil, with no formal maths education, maps out numbers logarithmically. By the first year at school, when the pupils are being introduced to number words and symbols, the curve is straightening. And by the second year at school, the numbers are at last evenly laid out along the line. There is a simple explanation. Imagine a Munduruku is presented with five dots. He will study it closely and see that five dots are five times bigger than one dot, but 10 dots are only twice as big as five dots. The Munduruku – and the children – seem to be making their decisions about where numbers lie based on estimating the ratios between amounts. When considering ratios, it is logical that the distance between five and one is much greater than the distance between 10 and five. And, if you judge amounts using ratios, you will always produce a logarithmic scale. It is Pica's belief that understanding quantities in terms of estimating ratios is a universal human intuition, due to the fact that ratios are much more important for survival in the wild. Historically, faced with a group of adversaries, we needed to know instantly whether there were more of them than us. When we saw two trees, we needed to know instantly which had more fruit hanging from it. In neither case was it necessary to enumerate every enemy or every fruit individually. The crucial thing was to be able to make quick estimates of the relevant amounts and compare them; in other words to make approximations and judge their ratios. The logarithmic scale also takes account of perspective. For example, if we see a tree 100 metres away and another 100 metres behind it, the second 100 metres looks shorter. To a Munduruku, the idea that every 100 metres represents an equal distance is a distortion of how he perceives the environment. Exact numbers provide us with a linear framework that contradicts our logarithmic intuition. We live with both a linear and a logarithmic understanding of quantity. For example, our understanding of the passing of time tends to be logarithmic. We often feel that time passes faster the older we get. Yet it works in the other direction too: yesterday seems a lot longer than the whole of last week. Our deep-seated logarithmic instinct surfaces most clearly when it comes to thinking about very large numbers. For example, we can all understand the difference between one and 10. It is unlikely we would confuse one pint of beer and 10 pints of beer. Yet what about the difference between a billion gallons of water and 10 billion gallons of water? Even though the difference is enormous, we tend to see both quantities as quite similar – very large amounts of water. Likewise, the terms millionaire and billionaire are thrown around almost as synonyms – as if there is not so much difference between being very rich and very, very rich. Stanislas Dehaene is perhaps the leading figure in the cross-disciplinary field of numerical cognition. He started off as a mathematician, and is now a neuroscientist, a professor at the Collège de France and one of the directors of NeuroSpin, a state-of-the-art research institute near Paris. In 1997, he was having lunch in the canteen of Paris's Science Museum with the Harvard development psychologist, Elizabeth Spelke. They had sat down, by chance, next to Pierre Pica. Pica brought up his experiences with the Munduruku and, after excited discussions, the three decided to collaborate. The chance to study a community that doesn't have counting was a wonderful opportunity for new research. Dehaene devised experiments for Pica to take to the Amazon, one of which was very simple: he wanted to know just what they understood by their number words. Back in the rainforest, Pica assembled a group of volunteers and showed them varying numbers of dots on a screen, asking them to say aloud the number of dots they saw. The Munduruku numbers are: 1 pug 2 xep xep 3 ebapug 4 ebadipdip 5 pug pogbi When there was one dot on the screen, the Munduruku said "pug". When there were two, they said "xep xep". But beyond two, they were not precise. When three dots showed up, "ebapug" was said only about 80% of the time. The reaction to four dots was "ebadipdip" in only 70% of cases. When shown five dots, "pug pogbi" was managed only 28% per cent of the time, with "ebadipdip" given instead in 15% of answers. In other words, for three and above the Munduruku's number words were really just estimates. They were counting "one", "two", "threeish", "fourish", "fiveish". Pica started to wonder whether "pug pogbi", which literally means "handful", even really qualified as a number. Maybe they could not count up to five, but only to four-ish? Pica also noticed an interesting linguistic feature of their number words. From one to four, the number of syllables of each word is equal to the number itself. This observation really excited him. "It is as if the syllables are an aural way of counting," he said. In the same way that the Romans counted I, II, III and IIII but switched to V at five, the Munduruku started with one syllable for one, added another for two, another for three, another for four – but did not use five syllables for five. When the number of syllables was no longer important, the word was maybe not a number word at all. "This is amazing, since it seems to corroborate the idea that humans possess a number system that can only track up to four exact objects at a time," Pica said. He also tested the Munduruku's abilities to estimate large numbers. In one test, the subjects were shown a computer animation of two sets of several dots falling into a can . They were then asked to say if these two sets added together in the can – no longer visible for comparison – amounted to more than a third set of dots that then appeared on the screen. This tested whether they could calculate additions in an approximate way. They could, performing just as well as a group of French adults given the same task. In a related experiment,, Pica's computer screen showed an animation of six dots falling into a can and then four dots falling out. The Munduruku were asked to point at one of three choices for how many dots were left in the can. In other words, what is 6 minus 4? This test was designed to see if the Munduruku understood exact numbers for which they had no words. They could not do the task. When shown the animation of a subtraction that contained either six, seven or eight dots, the solution always eluded them. "They could not calculate even in simple cases," said Pica. The results of these dot experiments showed that the Munduruku were very proficient in dealing with rough amounts, but were abysmal in exact numbers above five. Pica was fascinated by the similarities this revealed between the Munduruku and westerners: both had a fully functioning, exact system for tracking small numbers and an approximate system for large numbers. The significant difference was that the Munduruku had failed to combine these two independent systems together to reach numbers beyond five. Pica said this must be because, for them, keeping the systems separate was more useful. And the fact that some Munduruku had learned to count in Portuguese but still failed to grasp basic arithmetic, was an indication of just how powerful their own mathematical system was and how well suited it was to their needs. Could it be that humans need words for numbers above four in order to have an exact understanding of them? Professor Brian Butterworth, of University College London, believes that we don't. He thinks that the brain contains a ready-built capacity to understand exact numbers, which he calls the "exact number module". According to his interpretation, humans understand the exact number of items in small collections, and by adding to these collections one by one we can learn to understand how bigger numbers behave. He has been conducting research in the only place outside the Amazon where there are indigenous groups with almost no number words: the Australian outback. The Warlpiri Aboriginal community lives near Alice Springs and has words only for one, two and many. The Anindilyakwa of Groote Eylande in the Gulf of Carpentaria have words only for one, two, three (which sometimes means four) and many. In one experiment with children of both groups, a block of wood was tapped with a stick up to seven times and counters were placed on a mat. Sometimes the number of taps matched the number of counters, sometimes not. The children were perfectly able to say when the numbers matched and when they didn't. Butterworth argued that to get the answer right, the children were producing a mental representation of exact number that was abstract enough to represent both auditory and visual enumeration. These children had no words for the numbers four, five, six and seven, yet were perfectly able to hold those amounts in their heads. Words were useful to understand exactness, Butterworth concluded, but not necessary. Another important focus of Butterworth's work – and of Dehaene's – is a condition called dyscalculia, or "number blindness". It occurs in an estimated 3-6% of the population. Dyscalculics do not "get" numbers the way most people do. For example, which of these two figures is biggest? 65 or 24? Almost all of us will get the correct answer in less than half a second. If you have dyscalculia, however, it can take up to three seconds. The nature of the condition varies from person to person, but those diagnosed with it often have problems in correlating the symbol for a number, say 5, with the number of objects the symbol represents. They also find it hard to count. Sufferers tend to rely on alternative strategies to cope with numbers in everyday life; for instance by using their fingers more. Severe dyscalculics can barely read the time. Understanding dyscalculia has a social urgency, since adults with low numeracy are much more likely to be unemployed or depressed than their peers. Much of the research is behavioural, such as the screening of tens of thousands of schoolchildren in which they must say which of two numbers is the biggest. Some is neurological, in which magnetic resonance scans of dyscalculic and non-dyscalculic brains are studied to see how their circuitry differs. Gradually, a clearer picture is emerging of what dyscalculia is – and of how the number sense works in the brain. Neuroscience, in fact, is providing some of the most exciting new discoveries in the field of numerical cognition. It is now possible to see what happens to individual neurons in a monkey's brain when that monkey thinks of a precise number of dots. Andreas Nieder, at the University of Tübingen in southern Germany, trained rhesus macaques to think of a number. He did this by showing them one set of dots on a computer, then, after a one-second interval, showing another set of dots. The monkeys were taught that if the second set was equal to the first set, pressing a lever would earn them a reward of a sip of apple juice. If the second set was not equal to the first, then there was no apple juice. After about a year, the monkeys learned to press the lever only when the number of dots on the first and second screens was equal. Nieder and his colleagues reasoned that during the one-second interval between screens, the monkeys were thinking about the number of dots they had just seen. Nieder decided he wanted to see what was happening in the monkeys' brains when they were holding the number in their heads. So, he inserted an electrode two microns in diameter through a hole in their skulls and into the neural tissue. (At that size, an electrode is tiny enough, apparently, to slide through the brain without causing damage or pain.) When the monkeys thought of numbers, Nieder saw that certain neurons became very active. On closer analysis, he made a fascinating discovery: the number-sensitive neurons reacted with varying charges depending on the number that the monkey was thinking of at the time. Furthermore, when a monkey was thinking "four", the neurons that preferred four were the most active, of course – but the neurons that preferred three and the neurons that preferred five were also active, though less so, because its brain was also thinking of the numbers surrounding four. "It is a noisy sense of number," explained Nieder. "The monkeys can only represent cardinalities in an approximate way." It is almost certain that the same thing happens in human brains. Which raises an interesting question: if our brains can represent numbers only approximately, then how were we able to "invent" numbers in the first place? "The 'exact number sense' is a [uniquely] human property that probably stems from our ability to represent number very precisely with symbols," concluded Nieder. Which reinforces the point that numbers are a cultural artefact, a man-made construct, rather than something we acquire innately. guardian.co.uk © Guardian News & Media Limited 2010 | Use of this content is subject to our Terms & Conditions | More Feeds Source: Science news, comment and analysis | guardian.co.uk | 31 Mar 2010 | 3:00 pm Human genome at ten: The sequence explosionSource: NatureNews - All articles published today - nature.com science feeds | 31 Mar 2010 | 3:00 pm Human genome at ten: Life is complicatedThe more biologists look, the more complexity there seems to be. Erika Check Hayden asks if there's a way to make life simpler.Source: NatureNews - All articles published today - nature.com science feeds | 31 Mar 2010 | 3:00 pm CorrectionSource: NatureNews - All articles published today - nature.com science feeds | 31 Mar 2010 | 3:00 pm Human genome at ten: The human raceWhat was it like to participate in the fastest, fiercest research race in biology? Alison Abbott talks to some of the genome competitors about the rivalries and obstacles they faced then — and now.Source: NatureNews - All articles published today - nature.com science feeds | 31 Mar 2010 | 3:00 pm Clouds May Hold Key to Why Early Earth Didn’t Freeze OverSolution to 'young' sun paradox proposed through thinner clouds on early Earth.Source: Livescience.com | 31 Mar 2010 | 2:56 pm Hunt for Missing Genetic Killer Comes Up EmptyA massive search for a prime suspect in the mystery of the missing heritability has come up empty. Known as copy-number variations, or CNVs, these extra or missing sequences of the genome have been linked to some rare diseases. Researchers thought they might play a role in common diseases, too. But a comparison of 19,000 genomes found few links to breast cancer, diabetes and six other major killers. Copy-number variations “are unlikely to contribute to the genetic basis of common human diseases,” wrote researchers from the Wellcome Trust Case Control Consortium in a study published March 31 in Nature. Formed during glitches in gene duplication, CNVs cover as much space on the genome as standard gene mutations, in which individual letters of the genetic code are mixed up. Standard gene mutations don’t appear to explain much of the heredity that clearly exists in many common diseases, a phenomenon that scientists call “missing heritability.” To find whether CNVs might play a part, Wellcome Trust researchers compared CNVs in the genomes of 3,000 healthy people with CNVs in the genomes of 16,000 patients. The patients were equally divided among people with type 1 and type 2 diabetes, bipolar disorder, rheumatoid arthritis, breast cancer, high blood pressure, heart disease and Crohn’s disease. But when the numbers were crunched, CNVs were cleared. No individual CNVs had a powerful effect on disease, nor did large numbers of them. Though some rare CNVs are linked to disease, and more remain to be found, the bulk appear to do nothing, wrote the researchers. The missing heritability is still at large. Image: Mike Towber/Flickr See Also:
Citation: “Genome-wide association study of CNVs in 16,000 cases of eight common diseases and 3,000 shared controls.” By the Wellcome Trust Case Control Consortium. Nature, Vol. 464 No. 7289, April 1, 2010. Brandon Keim’s Twitter stream and reportorial outtakes; Wired Science on Twitter. Brandon is currently working on a book about ecological tipping points. Source: Wired: Wired Science | 31 Mar 2010 | 2:07 pm Rule poses threat to museum bonesLaw change will allow Native American tribes to reclaim ancient bones found close to their lands.Source: NatureNews - All articles published today - nature.com science feeds | 31 Mar 2010 | 2:00 pm News briefing: 1 April 2010The week in science.Source: NatureNews - All articles published today - nature.com science feeds | 31 Mar 2010 | 2:00 pm Turning a Hot Tub into a Time MachineAssuming a Hot Tub Time Machine has the same energy requirements as Back To The Future's DeLorean, what kind of upgrade would it need?Source: Discovery News - Top Stories | 31 Mar 2010 | 1:27 pm Scientists open way for new sleeping sickness drugLONDON (Reuters) - British scientists have discovered a new way of tackling the fatal parasitic disease African sleeping sickness which they say could pave the way for the development of safe, effective drugs to treat it.Source: Reuters: Science News | 31 Mar 2010 | 1:22 pm Rainfall Records Fall Across the NortheastThe second major storm this month pummeled the Northeast, setting rainfall records across the region.Source: Livescience.com | 31 Mar 2010 | 1:09 pm Laughter: It's No JokeUnderstanding this primal form of communication is no laughing matter for scientists.Source: Discovery News - Top Stories | 31 Mar 2010 | 12:49 pm 10 Years on, ‘The Genome Revolution Is Only Just Beginning’Almost 10 years after the celebrated completion of the human genome’s first draft, the expected revolution in medicine and research has only partly come to pass. The human genome’s sequencing has profoundly influenced basic research and the refinement of genome-reading tools. But those advances have had only limited medical impacts. “The promise of a revolution in human health remains quite real,” wrote Francis Collins, director of the National Institutes of Health, in an essay published March 31 in Nature. “Those who somehow expected dramatic results overnight may be disappointed.” Collins’ commentary is one of four published this week in Nature in anticipation of the human genome’s upcoming 10th anniversary, which officially falls on June 26. On that date in 2000, Collins — then the head of the NIH’s National Human Genome Research Institute — met in the White House with Craig Venter, founder of Celera Genomics, and President Bill Clinton. In the same room that Merriweather Lewis and William Clark presented Thomas Jefferson with a map of the Louisiana Purchase territories, the researchers announced that the human genome’s three billion base pairs of DNA had been mapped. “Humankind is on the verge of gaining immense, new power to heal,” proclaimed Clinton. “It will revolutionize the diagnosis, prevention and treatment of most, if not all, human diseases.”
Mostly lost in the ceremony was the fact that the genome sequence was not truly complete, but only a first draft. About 10 percent of it hadn’t yet been read. The parts that had been read, still needed to be verified. Reading the genome had required its breakup into thousands of manageable chunks that needed to be reassembled. Ewan Birney, a Sanger Center geneticist and leader of a group involved in the sequencing, compared the moment to “being given the best book in the world, but it’s in Russian, and it’s incredibly boring to read.” The human genome’s sequencing wasn’t formally completed until 2003. Since then, it has guided researchers in investigations of human development and disease. Some of their investigations have yielded new tests and drug targets and insights into the basis of human disease and development. But they’ve also revealed just how complicated human biology is, and how much remains to be understood. “Wisely, the president did not attach timetables to his bold predictions,” wrote Collins in Nature. Perhaps the greatest genomic advances of the last decade involve tools. The Human Genome Project — the Collins-led governmental side of the genome-sequencing race, with Venter leading the private side — commenced only when the cost of reading DNA finally approached $1 per unit, or $3 billion for a whole genome. A comparable genome sequence now costs less than $10,000. What took years to complete can be done in a day. Better tools have driven other genomic advances. The International HapMap project was formed in 2002, and compared the genomes of several hundred people from around the world. This produced a map of genomic hotspots where people — any two of whom are roughly 99 percent identical at the genetic level — are most likely to have DNA differences. This helps researchers narrow their focus on genes involved in disease. Researchers have also learned that just 1.5 percent of all human genes code for the proteins that make up our cells and tissues. As for what the rest are doing, they are still learning. In 2003, the NIH started the Encyclopedia of DNA Elements, or ENCODE, which supports researchers in identifying functions for the rest of our genes. Many genes control when protein-coding genes are turned on and off at different places and times in the body, adding a whole new layer of complexity to the genome. This field of study is called epigenomics, and many researchers think it’s just as important as genomics. The NIH’s Roadmap Epigenomics Program started just two years ago. Scientists hope these projects will fill the massive gaps that remain in current genetic explanations for most common diseases. Even after the publication of hundreds of genome-wide association studies — the gold standard of disease gene hunting, in which thousands of genomes are scanned and compared — scientists can explain only a fraction of the heritability that clearly exists in common diseases and conditions. “The ability to make meaningful predictions is still quite limited,” wrote Collins. Indeed, personalized genomics companies like 23andMe, Navigenics and deCODE have struggled, as the novelty of genomic information gives way to a realization that it’s still of limited medical use. But all for all that turn-of-the-millennium expectations have been tempered, the genomic age has produced significant medical advances. Analyses of gene disturbances in cancer tissues have produced several promising drugs. Testing for breast cancer mutations is now common. Individual response to about a dozen drugs can be predicted. And even if the big picture isn’t yet clear, researchers have thousands of new gene targets, each a providing a foothold on the path to understanding. For some complex diseases, such as schizophrenia, researchers are now looking at genes and physiological systems they never suspected were involved. Making sense of massive new genomic datasets has fueled the growth of systems biology, now one of the hottest areas of science. And all this research is shaped by another legacy of the genome’s sequencing: what Collins calls “the radical ethic of immediate data deposit.” Knowledge of the human genome wasn’t scattered and hoarded. It was freely shared with any researcher who wanted it. “My students can gather certain types of experimental data 1,000 and even 10,000 times faster than I could 40 years ago,” wrote Robert Weinberg, a Whitehead Institute geneticist, in Nature. As Venter, now the leader of the eponymous J. Craig Venter Institute, responsible for the designing the first synthetic genome, concluded his essay: “The genome revolution is only just beginning.” Image: A section of the printed human genome/Adam Nieman/Flickr See Also:
Citations: “Has the revolution arrived?” By Francis Collins. Nature, Vol. 464 No. 7289, April 1, 2010. “Multiple personal genomes await.” By J. Craig Venter. Nature, Vol. 464 No. 7289, April 1, 2010. “Dive in, the data’s lovely.” By Todd Golub. Nature, Vol. 464 No. 7289, April 1, 2010. “Don’t forget the hypotheses.” By Robert Weinberg. Nature, Vol. 464 No. 7289, April 1, 2010. Brandon Keim’s Twitter stream and reportorial outtakes; Wired Science on Twitter. Brandon is currently working on a book about ecological tipping points. Source: Wired: Wired Science | 31 Mar 2010 | 12:13 pm The Pac-Man Moon: Mimas Goes Wocka-Wocka-WockaSaturn's moon Mimas is a fan of the classic arcade game Pac-Man judging by a strange picture recently taken by NASA's Cassini Equinox mission.Source: Discovery News - Top Stories | 31 Mar 2010 | 11:59 am Alec Bangham obituaryLeading haematologist who was known as the father of liposomes Alec Bangham's decision to abandon clinical pathology and become a research scientist unleashed a career rich in discovery and innovation. It spanned six wonderfully fruitful decades during which Alec, who has died aged 88, became known as the father of liposomes. In 1952 he was one of the first to be appointed to the new Institute of Animal Physiology, Babraham, Cambridge, where he was a staff scientist for 30 years. Early research reflected the catholicity of his approach, driven by curiosity. He studied carriers of typhoid among Egyptians, the effect of cortisone on wound healing, and found that horses exhibited two types of haemoglobins. He tackled the surface chemistry of blood cells and found that pure phospholipids dispersed in water consisted of sets of closed membranes that were structurally and functionally like real cell membranes. He (and the world) called them liposomes, even if some affectionately prefer "Bangasomes". From this discovery in the 1960s, a new industry was to emerge. His fascination with the basic physics of how molecules permeate across membranes extended to the fusion and stickiness of membranes, blood clotting, anaesthetics and vitamin A intoxication. In contrast to many of today's set-ups, Alec always had a small laboratory of never more than two or three devoted staff. It received a stream of visiting scientists from all parts of the world, who became part of the extended family with Alec and his wife, Rosalind, at the centre. The impact of his work has been far-reaching, with tens of thousands of scientific papers, a succession of patents, a new journal, an international society, a profusion of conferences and the creation of companies. Excited when industry began to catch up with his ideas, Alec followed closely how liposomes could be used to treat chronic human diseases, whether it was cancer, fungal and mycoplasma infections or vascular disease. They could be used stealthily, like a Trojan horse, to deliver toxic drugs to their targets, as adjuvants for immunisation, and to deliver healthy genes where they were needed. He flew with Rosalind to Paris for dinner with Jacques Rouet, president of Christian Dior, to see liposomes being made by the kilogram. These little fatty vesicles became valuable in the cosmetics not only of Christian Dior but also Lancôme, Arden and numerous other companies. Alec was deeply aware that scientists in research institutes were envied by their peers in universities because many had permanent appointments, technical assistants and freedom to follow their curiosities. Yet he recognised the deprivations institutes imposed on scientists, who, for instance, missed out on the feedback generated by teaching. They were also forced to retire at the age of 61, an arrangement enforced by civil service rules that gave greater importance to age than creativity. As was to be expected, though, Alec found ways around this, and with Colin Morley at Addenbrooke's hospital, Cambridge, discovered that solid, rather than liquid, lung surfactant prevented lung tissue from filling up with fluid. A successful treatment for babies suffering from respiratory distress syndrome was developed, and artificial lung expanding compound, or "Alec", was launched, this time by a UK company. This new treatment gave great cause for rejoicing. Alec was awarded a doctorate of medicine from London University in 1965, was elected a fellow of the Royal Society in 1977 and of University College London in 1981, and made a distinguished fellow of the Royal College of Physicians in 1997. The landmark paper in which he had first described liposomes, with Malcolm Standish and Jeff Watkins, which was published in 1965, was recognised as a citation classic in Current Contents in 1989. The son of Donald Bangham, director of research at the British Coal Utilisation Research Association, and Edith Kerby, who was born in St Petersburg and had been a one-time interpreter for Emmeline Pankhurst, Alec was the eldest of three children. His early schooling at the Downs Quaker preparatory school, Colwall, Worcestershire, overlapped with the future twice-Nobel laureate Fred Sanger. He was taught English in his final two years by WH Auden. Photography was an enduring passion with Alec, and Auden paid him five cigarettes for taking a photograph of him with his wife of the day, Erika Mann, daughter of Thomas Mann, whom Auden had married so she could leave Germany. The school permitted Alec to visit his parents in Egypt, where his father was professor of physical chemistry in Cairo University. There, he photographed Jack Gaddum, who had been appointed by Alec's father to the chair of pharmacology and later became director of Babraham. Alec left Downs with barely the common entrance marks to get into Bryanston school, Blandford, Dorset. The story of his early academic career, however, did not presage the highly original and insightful research scientist who was to emerge. At school, Alec abandoned Latin as a lost cause, which excluded him from Oxbridge. At the outbreak of the second world war, he was not eligible for call-up, so, having read Microbe Hunters by Paul de Kruif, he decided to do medicine. He repeated French three times to gain access to London University, and failed his final MB MS (medicine) twice before emerging successfully from UCL. His first appointment was at Addenbrooke's hospital, followed by national service as a pathologist, becoming a captain in the Royal Army Medical Corps in 1948. Postings to Palestine and Fayid, Egypt, exposed him to the depressing task of carrying out postmortems on soldiers killed in action. Rosalind, who had qualified in medicine from King's College, London, joined him to live outside married quarters in a mud hut. With Colonel John Hunt (of Everest fame), expeditions to the mountains of the western desert were irresistible. In his autobiography, Hunt recalled these expeditions and with obvious affection, wrote of this "delightfully unconventional pair" – the Banghams on an ageing motorbike and sidecar and the Hunts in a dilapidated pre-war Standard 9. Alec was devoted to his family and addicted to sailing, cricket (he was a notable batsman in his day), photography, restoring Caucasian rugs, cars, scooters, making facsimiles of classical clarinet mouthpieces, and growing the largest vegetables in the locality. At the end of his life he was still bursting with ideas and still publishing. His latest hypothesis was that a person's bouquet of weak volatile organic compounds serves two purposes. In their uncharged state, they are permeable and smell and collectively identify an individual. When charged, they bond and make surfaces charge-free and invisible – fit to avoid rejection. It was a surreal moment when he gathered a small group of friends and colleagues to tell them all about this on the evening before he died. His wife predeceased him by a few months. He leaves three sons and a daughter. • Alec Douglas Bangham, haematologist, born 10 November 1921; died 9 March 2010 guardian.co.uk © Guardian News & Media Limited 2010 | Use of this content is subject to our Terms & Conditions | More Feeds Source: Science news, comment and analysis | guardian.co.uk | 31 Mar 2010 | 11:34 am Obama Announces Offshore Drilling PlanReversing his position as a presidential candidate, Obama has decided to open some offshore waters to oil drilling.Source: Discovery News - Top Stories | 31 Mar 2010 | 11:30 am Skydiver Aims to Jump From 120,000 Feet, Break the Sound BarrierIf you’re planning to jump out of a plane at 120,000 feet and break the sound barrier, you need a really fancy suit. Austrian skydiver Felix Baumgartner has been working with a company that makes space suits for astronauts in an effort to pull off a record-setting jump with the Red Bull Stratos project that he hopes will also lead to safer flight suits for future astronauts. Baumgartner, the Red Bull star who has done everything from crossing the English Channel during free fall using a carbon fiber wing, to BASE jumping off the tallest buildings in the world, is planning to ascend to the stratosphere in a pressurized capsule carried by a massive helium balloon. Once reaching 120,000 feet, the plan is to depressurize the capsule, open the door and step off.
The current record for a skydive was set way back in 1960 when U.S. Air Force Colonel (Retired) Joseph Kittinger jumped from 102,600 feet. In addition to breaking that record, Baumgartner (like Kittinger did) is working with several scientists to research new, safer suit designs for pilots and future space travelers. The hope is to develop the next generation of full pressure suits that would help increase survival if the need to bail out of a spacecraft should ever arise at extremely high altitudes. The new suit being used by Baumgartner is made by David Clark, the same company that made Kittinger’s suit as well as full pressure suits for astronauts and military pilots flying at the edge of the atmosphere in aircraft such as the SR-71 Blackbird, the U-2 and the X-15. The suits provide an artificial atmosphere that allows pilots to survive in what would otherwise be a a deadly environment. For Baumgartner’s jump, temperatures are expected to be colder than minus 58 degrees Fahrenheit, and the air pressure will be so low that a condition known as ebullism would kill him if the pressure suit were to fail. The condition is explained by everybody’s favorite formula from chemistry class, the ideal gas law. Ebullism can strike at 62,000 feet, but at 120,000 feet, the outside air pressure is less than one pound per square inch, making it even easier for gas bubbles to form in the blood, basically allowing the blood to boil. Another potential problem is maneuvering during free fall. In order to achieve Mach 1, Baumgartner will have to adjust his position during free fall and a normal suit is too restrictive to allow sufficient freedom of movement. One of the worries is what would happen if a person were to begin tumbling. Skydivers use their arms and legs to maneuver, but with the limited motion in a space suit, mobility is greatly restricted. The David Clark suit gives Baumgartner more flexibility to move during free fall. So far the Red Bull Stratos team has tested the new suit in wind tunnels, low pressure chambers and several jumps from 25,000 feet. Baumgartner has been fine tuning his “delta” position that he will use to achieve the supersonic jump. No person has ever broken the sound barrier during free fall, though it is thought if a person were forced to bail out of a spacecraft at altitudes much higher than 120,000 feet, they would achieve supersonic speeds involuntarily. Baumgartner wants to help researchers better understand the possible effects of supersonic speeds on a person falling through the atmosphere as well as the effects on the suit. Images: Red Bull See Also:
Source: Wired: Wired Science | 31 Mar 2010 | 11:28 am CERN tackles glitches, pushes new science frontierGENEVA (Reuters) - Physicists at CERN, buoyed by their ground-breaking success in creating mini-Big Bangs, giving them a glimpse of the dawn of time, have set their sights on pushing closer to the very birth of the universe.Source: Reuters: Science News | 31 Mar 2010 | 11:05 am Mega-flood triggered cooling 13,000 years ago: scientistsSINGAPORE (Reuters) - Scientists say they have found the trigger of a sharp cooling 13,000 years ago that plunged Europe into a mini ice age.Source: Reuters: Science News | 31 Mar 2010 | 11:04 am Video: Zebra finches and autismGeneticists are using the genome of zebra finches to understand more about speech problems caused by Parkinson's and autism Source: Science news, comment and analysis | guardian.co.uk | 31 Mar 2010 | 11:03 am Why Early Earth Didn't FreezeA new theory emerges to explain how early Earth was able to host liquid oceans despite a weak sun.Source: Discovery News - Top Stories | 31 Mar 2010 | 11:00 am Britain brandishes olive branch to restart global climate change talksEd Miliband concedes ground and offers to sign new Kyoto treaty in unilateral attempt to heal rift between rich and poor countries Britain brandished a diplomatic olive branch today as it tried to restart global climate change negotiations with an initiative to heal the rift between rich and poor countries following the failure of the Copenhagen summit. Climate secretary Ed Miliband conceded considerable ground, offering to sign a new Kyoto treaty as developing countries' demand, but while also requiring that those nations enshrine their commitments to tackling global warming in international law. Britain's unilateral move addresses the key issue that doomed Copenhagen – that the rich accept the legally binding commitments to cut greenhouse gas emissions enshrined in Kyoto. The initiative could lead to two separate global treaties on climate change. It also offers a challenge to China, India and other major developing countries, who have been unwilling to commit legally to acting on climate change because the Kyoto agreement specifically exempts them. "We are asking that developing countries internationalise in a legally binding agreement the actions they take domestically," said the government action plan, published today in advance of formal UN negotiations that reopen next week in Bonn. "We would not envisage developing countries being subject to any punitive compliance measures," it added. The move is the strongest signal yet that rich countries' attempts to sideline or even abandon the Kyoto treaty have failed and that the negotiations will continue within the 192-nation UN climate body and not in smaller groups of countries as the US and other nations had wanted. "We hope by doing this we can take away the myth that developed countries were trying to destroy Kyoto," said Miliband. "We are determined to unblock the negotiations. We are willing to offer a second agreement under Kyoto, provided there is a separate legal treaty covering all other countries." The move was immediately welcomed by Bharrat Jagdeo, president of Guyana. But he warned that developing countries would not accept an agreement if rich countries – who have emitted by far the most carbon pollution – did not commit to further deep cuts in emissions. Referring to the US, he said: "There are countries who stick out and clearly need to do more work. If the largest [developed] country emitter falls so far below the minimum, it makes it far harder for other countries, and you lose the element of justice and fairness." The diplomatic moves came as Gordon Brown met billionaire financier George Soros; Obama's economic adviser Larry Summers; economist Lord Nicholas Stern and other finance ministers to find ways to raise $30bn (£20bn) a year immediately and $100bn a year by 2020 to enable developing countries to adapt to climate change. The high-level advisory group on climate change financing, convened by UN general secretary Ban Ki-moon and chaired by Brown and Ethiopian prime minister Meles Zenawi, will consider at least six ways of raising up to $1tn dollars for climate change adaptation. These include: • a small levy on all international aviation and shipping • enlarging existing carbon cap-and-trade markets • imposing a small "Robin Hood"-type tax on all financial transactions • using the International Monetary Fund's special drawing rights. The group of 19 financial leaders have been asked by Ban to report back by November, when UN climate talks take place in Cancun, Mexico. Environment and development groups welcomed the British initiative. Andy Atkins, Friends of the Earth's executive director, said: "It's positive that the government has restated its commitment to the Kyoto protocol, which enshrines the responsibility of rich countries, as the biggest historical polluters, to slash their emissions first and fastest." Joanne Green, head of policy at development agency Cafod, said: "This shows that Gordon Brown is listening to the concerns of developing countries. This is a first stride in rebuilding the trust desperately needed between developing and developed countries." And Melanie Ward, Christian Aid's UK political adviser, said: "The positive language needs to be matched by the necessary political choices. "These include using international finance to support clean development in poor countries, rather than more dirty coal power stations, and demanding much deeper cuts in EU emissions levels." guardian.co.uk © Guardian News & Media Limited 2010 | Use of this content is subject to our Terms & Conditions | More Feeds Source: Science news, comment and analysis | guardian.co.uk | 31 Mar 2010 | 10:59 am Diet Changed Dinosaur's Head ShapeDiet changed the entire head shape of a giant dinosaur as it grew up.Source: Discovery News - Top Stories | 31 Mar 2010 | 10:52 am U.S. Judge Strikes Down Gene PatentsGenes cannot be patented, said a judge, because isolated DNA is not markedly different from DNA as it exists in nature.Source: Discovery News - Top Stories | 31 Mar 2010 | 10:21 am 12 Little-Known iPad FeaturesHere are a few iPad features that you may have not known about.Source: Livescience.com | 31 Mar 2010 | 9:32 am Surprise iPad Potential: Great Gaming PlatformThe iPad may soon turn into a major gaming platform.Source: Livescience.com | 31 Mar 2010 | 9:22 am Atom Smasher Could Reveal Fabled Monopole MagnetScientists hope to use the LHC, the world’s most powerful particle accelerator, to create a hypothetical magnetic particle completely different from any magnets ever seen.Source: Livescience.com | 31 Mar 2010 | 9:01 am Does Caffeine Sensitivity Increase With Age?Sensitivity to caffeine tends to increase as you get older.Source: Livescience.com | 31 Mar 2010 | 8:54 am A suitable case for libel?As a member of the British False Memory Society, I and others like me are portrayed as giving comfort to child sex abusers. Is it worth suing our accusers? Some weeks ago, I wrote a piece for the Guardian criticising the Reverend Pearl Luxon, the person in charge of the Church of England's child protection policy, who appears to believe that "there is no such thing as false memory". The Church continues to recommend a self-help book called The Courage to Heal as part of their child protection policy despite the fact that the book has been criticised as contributing to the formation of false memories of childhood sexual abuse both by the scientific and professional advisory board of the British False Memory Society (BFMS) and other experts in the field. This led to accusations that I and other members of the BFMS as well as sociologist Jo Woodiwiss, were attacking survivors of child abuse and denying their experiences of a traumatic childhood. These accusations were made by Peter Saunders, the CEO and founder of the National Association for People Abused in Childhood (NAPAC), an organisation that recently received a grant of almost half a million pounds from the Big Lottery Fund. The comments were made by Saunders in response to a follow-up article by Woodiwiss in which she pointed out, quite correctly, that reading books like The Courage to Heal can lead vulnerable individuals to conclude that they were the victims of sexual abuse even in the absence of any conscious memories of such abuse. Saunders wrote of "so-called academics" who are "doing all abusers a huge favour" by "effectively silencing victims for fear of attracting ridicule". The idea of false memories was referred to as "nonsense" and "dangerous tripe". On behalf of the maligned scientific advisers and also the membership of the BFMS, (who were labelled by Saunders as a "dangerous group" on his blog), the director of the BFMS, Madeline Greenhalgh, sought the advice of Adrienne Page QC, who is acting for Simon Singh in his legal battle with the British Chiropractic Association. Her excellent advice is summarised here with the permission of the BFMS: The BFMS engages in public debate and seeks to influence public opinion. It has stimulated the latest round of argument by the public letter sent to the Archbishop of Canterbury expressing concern regarding the Church of England's continued recommendation of The Courage to Heal as part of its child protection policy. The stance of the European Court of Human Rights is that those who enter the public arena and contribute on matters of public interest must be especially tolerant of extreme, unreasonable and even defamatory reactions to their viewpoint. This, it is said, is vital in a democratic society. I could not agree more with this advice. It is worth making the point here that the campaign for reform of the English libel laws, which I strongly support, is seeking reforms that would make laws fairer, not abolish them altogether. So, the good people at the Guardian can relax – we don't intend to sue Saunders for libel. It is far too heavy handed an approach to deal with what is essentially a matter of scientific evidence. But I would like to spell out very clearly my own position on the matter of childhood sexual abuse, a position which is, I believe, widely shared by other members of the BFMS. I do not for an instant deny that childhood sexual abuse occurs and can often have devastating psychological consequences. My heart goes out to the victims of such abuse and I condemn without reservation their abusers. The question is: How often do individuals suffer such abuse and then totally forget it as a consequence of "repression"? The available evidence suggests that this rarely, if ever, happens. Instead, it is far more typical for victims to be unable to block the traumatic memories from their consciousness. Furthermore, despite the claims of Peter Saunders and Rev Luxon, the evidence that false memories do occur is overwhelming – there simply is no doubt about that. The evidence is available in numerous books and psychology journals for anyone who cares to look at it. Members of the BFMS are more than happy to supply this information to Peter Saunders and Rev Luxon upon request or to meet them in person to discuss the evidence. Perhaps the Church of England authorities have adopted their position because they are afraid of becoming embroiled in the type of child sex abuse scandals that are currently engulfing the Roman Catholic Church. It is understandable that they would wish to avoid any risk of being accused by the likes of Peter Saunders of defending abusers and attacking victims. But they, like the rest of us, must ultimately base their policy upon the best scientific evidence available. According to an article in the Church Times on 19 March, a review by the Church of England of its child protection policies will take into account the issues raised by the BFMS. One final thought that the Church authorities might like to ponder during this review: If accusations of child sex abuse are made against its members based upon "recovered" memories by individuals who have read and been influenced by The Courage to Heal or similar books, would they not find it very difficult to defend themselves, given that they recommend such reading material themselves? After all, if there is no such thing as a false memory, it follows that any such memories must be true, doesn't it? Chris French is a Professor of Psychology at Goldsmiths where he heads the Anomalistic Psychology Research Unit. He edits the the Skeptic. guardian.co.uk © Guardian News & Media Limited 2010 | Use of this content is subject to our Terms & Conditions | More Feeds Source: Science news, comment and analysis | guardian.co.uk | 31 Mar 2010 | 8:32 am Bees See Color 3 Times Faster Than HumansBees have surprisingly fast color vision, about 3 to 4 times faster than that of humans, a new study says.Source: Livescience.com | 31 Mar 2010 | 8:29 am Manga Illustrator to Inspire Interest in ScienceA manga illustrator hopes to encourage skeptical thinking and interest in science among female fans of Japanese manga comics.Source: Livescience.com | 31 Mar 2010 | 8:15 am China spends big to counter severe weather caused by climate changeCountry invests heavily in warning systems and infrastructure to tackle effects of extreme temperatures, typhoons, fog and storms China will tomorrow start ramping up preparations for typhoons, dust storms and other extreme weather disasters as part of a 10-year plan to predict and prevent the worst impacts of climate change. Improved warning systems, new emergency drills and bolstered infrastructure will form the backbone of the new regulations, which are the country's most advanced measures yet to deal with natural disaster. China has a long history of devastating floods and droughts, but officials said the problems were intensifying. "It is necessary to respond to the new situation under climate change to avoid and mitigate the losses caused by meteorological disasters," said Gao Fengtao, deputy director of the state council's legislative affairs office, as he unveiled the new policy. In recent years, he said, disasters were characterised by "sudden occurrence, wider variety, greater intensity and higher frequency in the context of global warming". Officials warned this posed a threat to human life and a huge challenge to China's sustainable development. Zheng Guoguang, head of China's meteorological administration, said natural disasters caused economic losses each year of up to 300bn yuan (£29bn), equivalent to about 2% of the country's gross domestic product. He cited the unusually severe snow storms that engulfed southern China in 2008 and the worst drought in a century that is now afflicting Yunnan, Guangxi and Sichuan provinces. The new regulations for the prevention of and preparedness for meteorological disasters will establish a legal framework for disaster response, risk assessment, evacuation measures and public education. They will cover terrestrial phenomena – such as extreme temperatures, dust and sand storms, lightning strikes, fog, typhoons – and "space weather", such as solar storms. Officials said the move was part of a 10-year national plan that clarified the government's response to climate change and stipulated what measures regional and local governments should take in terms of infrastructure investment, reporting mechanisms and disaster drills. But it was unclear how much the central government would spend on the programme and the proportion of the costs it would bear. Local authorities in poor areas often neglect Beijing directives that they cannot afford to implement. Despite its developing nation status, China has an advanced meteorological monitoring system, using weather satellites and a global network of 158 radar stations. Zheng said the government has invested 10bn yuan in the system in recent years, with the budget rising 15% annually. "The large sums that China invests in its meteorological infrastructure are rarely seen in the world," he said. guardian.co.uk © Guardian News & Media Limited 2010 | Use of this content is subject to our Terms & Conditions | More Feeds Source: Science news, comment and analysis | guardian.co.uk | 31 Mar 2010 | 8:13 am Earth WatchClimate probe finds problems, but not with warmingSource: BBC News | Science & Environment | UK Edition | 31 Mar 2010 | 6:37 am
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