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anonymous

Why Climate Deniers Have No Scientific Credibility - In One Pie Chart - 0 views

  • I searched the Web of Science for peer-reviewed scientific articles published between 1 January 1991 and 9 November 2012 that have the keyword phrases "global warming" or "global climate change." The search produced 13,950 articles. See methodology.
  • Of one thing we can be certain: had any of these articles presented the magic bullet that falsifies human-caused global warming, that article would be on its way to becoming one of the most-cited in the history of science.
  • Global warming deniers often claim that bias prevents them from publishing in peer-reviewed journals. But 24 articles in 18 different journals, collectively making several different arguments against global warming, expose that claim as false. Articles rejecting global warming can be published, but those that have been have earned little support or notice, even from other deniers.
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  • Anyone can repeat this search and post their findings. Another reviewer would likely have slightly different standards than mine and get a different number of rejecting articles. But no one will be able to reach a different conclusion, for only one conclusion is possible: Within science, global warming denial has virtually no influence. Its influence is instead on a misguided media, politicians all-too-willing to deny science for their own gain, and a gullible public.
  • Scientists do not disagree about human-caused global warming. It is the ruling paradigm of climate science, in the same way that plate tectonics is the ruling paradigm of geology. We know that continents move. We know that the earth is warming and that human emissions of greenhouse gases are the primary cause. These are known facts about which virtually all publishing scientists agree.
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    "Polls show that many members of the public believe that scientists substantially disagree about human-caused global warming. The gold standard of science is the peer-reviewed literature. If there is disagreement among scientists, based not on opinion but on hard evidence, it will be found in the peer-reviewed literature."
anonymous

Scientists as "spiritual atheists" - 0 views

  • He’s referring to a new book, Science vs Religion: What Scientists Really Think by Elaine Howard Ecklund.
  • The reference point is the general population. In fact, 72% of scientists hold to a non-theistic position. On the other hand, most are not militant atheists in the mould of Richard Dawkins or Peter Atkins.
  • For the general public religious truths are both descriptive and prescriptive. That is, they describe the world’s past, and its present, as a factual matter, and, they prescribe a set of actions and norms. I think most scientists are thinking in prescriptive terms here, not descriptive. In other words, the religions of the world have integrated within their belief systems basic core human morality and ethics. Fundamental moral truths. I would myself agree that there are basic truths in many religions.
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    Are Top Scientists Really So Atheistic? Look at the Data asks Chris Mooney. By Razib Khan in Discover Magazine Blogs on April 14, 2010.
anonymous

Scientists are from Mars, the public is from Earth | Bad Astronomy | Discover Magazine - 1 views

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    The American Geophysical Union blog has a link up to a very interesting table, and I feel strongly enough about this topic that I want to share it with you. It's a list of words scientists use when writing or otherwise communicating science, what the scientists mean when they use that word, and most importantly what the public hears.
anonymous

Two incontrovertible things: Anthropogenic Global Warming is Real, and the Wall Street ... - 0 views

  • That second list of scientists, much longer than the first, is attached to a letter about the shoddy and ignorant ways in which science is being treated by the press and by climate change denialists. That letter was sent to the Wall Street Journal but rejected. The letter was later published in Science.
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    The Wall Street Journal has published one of the most offensive, untruthful, twisted reviews of what scientists think of climate change; the WSJ Lies about the facts and twists the story to accommodate the needs of head-in-the-sand industrialists and 1%ers; The most compelling part of their argument, according to them, is that the editorial has been signed by 16 scientists.
anonymous

Artificial meat? Food for thought by 2050 | Environment | The Guardian - 0 views

  • Artificial meat grown in vats may be needed if the 9 billion people expected to be alive in 2050 are to be adequately fed without destroying the earth, some of the world's leading scientists report today.
  • A team of scientists at Rothamsted, the UK's largest agricultural research centre, suggests that extra carbon dioxide in the air from global warming, along with better fertilisers and chemicals to protect arable crops, could hugely increase yields and reduce water consumption.
  • Instead, says Dr Philip Thornton, a scientist with the International Livestock Research Institute in Nairobi, two "wild cards" could transform global meat and milk production. "One is artificial meat, which is made in a giant vat, and the other is nanotechnology, which is expected to become more important as a vehicle for delivering medication to livestock."
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  • seven multinational corporations, led by Monsanto, now dominate the global technology field."These companies are accumulating intellectual property to an extent that the public and international institutions are disadvantaged. This represents a threat to the global commons in agricultural technology on which the green revolution has depended," says the paper by Professor Jenifer Piesse at King's College, London.
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    "Leading scientists say meat grown in vats may be necessary to feed 9 billion people expected to be alive by middle of century" By John Vidal at The Guardian on August 16, 2010.
anonymous

US scientists significantly more likely to publish fake research - 0 views

  • The study author searched the PubMed database for every scientific research paper that had been withdrawn—and therefore officially expunged from the public record—between 2000 and 2010.
  • "The duplicity of some authors is cause for concern," comments the author. Retraction is the strongest sanction that can be applied to published research, but currently, "[it] is a very blunt instrument used for offences both gravely serious and trivial."
  • And lets not let journals from other countries get off the hook, they publish fake stuff and duplicative research.  They just don't retract it.
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    "US scientists are significantly more likely to publish fake research than scientists from elsewhere, finds a trawl of officially withdrawn (retracted) studies, published online in the Journal of Medical Ethics." At Lab Spaces on November 16, 2010.
anonymous

Scientists vs. Pulsars - 0 views

  • atomic clocks rely on vacuum-sealed chambers full of cesium atoms kept near absolute zero or similarly complicated mechanisms to make their extremely precise measurements.  That kind of hardware requires a significant technological, economic and bureaucratic infrastructure to maintain.  If you can imagine finding an atomic clock after the electricity failed that kept it running, you would have to recreate a lot of knowledge to understand what in fact it was.
  • It’s in this endurance category, however, that pulsars maintain their dominance, as they’re likely to last quite a bit longer than anything humans have been able to build, even Long Now – we’ve been able to observe some that are thought to be around 200 million years old.
  • Today, the best optical lattice neutral atom clocks and trapped ion clocks have a frequency stability approaching one part in 10^17.By contrast, as more pulsars have been discovered, their timing stability has improved by less than an order of magnitude in the last 20 years. The best millisecond pulsars have a stability of only one part in 10^15 at best.
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    Who will win this epic clock-making competition? The scientists, it turns out. Article by Austin Brown at The Long Now Blog on April 14, 2010.
anonymous

Blinded by Big Science: The lesson I learned from ENCODE is that projects like ENCODE a... - 0 views

shared by anonymous on 25 Jan 13 - Cached
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    "American biology research achieved greatness because we encouraged individual scientists to pursue the questions that intrigued them and the NIH, NSF and other agencies gave them the resources to do so. And ENCODE and projects like it are, ostensibly at least, meant to continue this tradition, empowering individual scientists by producing datasets of "higher quality and greater comprehensiveness than would otherwise emerge from the combined output of individual research projects"."
anonymous

Huntington on Upheaval - 0 views

  • The very first sentences of Political Order have elicited anger from Washington policy elites for decades now -- precisely because they are so undeniable. "The most important political distinction among countries," Huntington writes, "concerns not their form of government but their degree of government." In other words, strong democracies and strong dictatorships have more in common than strong democracies and weak democracies.
  • hus, the United States always had more in common with the Soviet Union than with any fragile, tottering democracy in the Third World. This, in turn, is because order usually comes before freedom -- for without a reasonable degree of administrative order, freedom can have little value.
  • Huntington quotes the mid-20th century American journalist, Walter Lippmann: "There is no greater necessity for men who live in communities than that they be governed, self-governed if possible, well-governed if they are fortunate, but in any event, governed."
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  • Huntington, who died in 2008, asserts that America has little to teach a tumultuous world in transition because Americans are compromised by their own "happy history."
  • Americans assume a "unity of goodness": that all good things like democracy, economic development, social justice and so on go together. But for many places with different historical experiences based on different geographies and circumstances that isn't always the case.
  • many countries in the developing world are saddled either with few institutions or illegitimate ones at that: so that they have to build an administrative order from scratch. Quite a few of the countries affected by the Arab Spring are in this category. So American advice is more dubious than supposed, because America's experience is the opposite of the rest of the world.
  • For the more complex a society is, the more that institutions are required. The so-called public interest is really the interest in institutions. In modern states, loyalty is to institutions. To wit, Americans voluntarily pay taxes to the Internal Revenue Service and lose respect for those who are exposed as tax cheaters.
  • For without institutions like a judiciary, what and who is there to determine what exactly is right and wrong, and to enforce such distinctions?
  • What individual Arabs and Chinese really want is justice. And justice is ultimately the fruit of enlightened administration.
  • How do you know if a society has effective institutions? Huntington writes that one way is to see how good their militaries are. Because societies that have made war well -- Sparta, Rome, Great Britain, America -- have also been well-governed. For effective war-making requires deep organizations, which, in turn, requires trust and predictability.
  • The ability to fight in large numbers is by itself a sign of civilization. Arab states whose regimes have fallen -- Egypt, Libya, Syria -- never had very good state armies. But sub-state armies in the Middle East -- Hezbollah in Lebanon, the Mehdi Army in Iraq, the various rebel groups in Syria and militias in Libya -- have often fought impressively. Huntington might postulate that this is an indication of new political formations that will eventually replace post-colonial states.
  • Huntington implies that today's instability -- the riotous formation of new institutional orders -- is caused by urbanization and enlightenment. As societies become more urbanized, people come into close contact with strangers beyond their family groups, requiring the intense organization of police forces, sewage, street lighting, traffic and so forth.
  • The main drama of the Middle East and China over the past half-century, remember, has been urbanization, which has affected religion, morals and much else. State autocrats have simply been unable to keep up with dynamic social change.
  • He writes that large numbers of illiterate people in a democracy such as India's can actually be stabilizing, since illiterates have relatively few demands; but as literacy increase, voters become more demanding, and their participation in democratic groupings like labor unions goes up, leading to instability. An India of more and more literate voters may experience more unrest.
  • As for corruption, rather than something to be reviled, it can be a sign of modernization, in which new sources of wealth and power are being created even as institutions cannot keep up. Corruption can also be a replacement for revolution. "He who corrupts a system's police officers is more likely to identify with the system than he who storms the system's police stations."
  • In Huntington's minds, monarchies, rather than reactionary, can often be more dedicated to real reform than modernizing dictatorships. For the monarch has historical legitimacy, even as he feels the need to prove himself through good works; while the secular dictator sees himself as the vanquisher of colonialism, and thus entitled to the spoils of power.
  • Huntington thus helps a little to explain why monarchs such as those in Morocco, Jordan and Oman have been more humane than dictators such as those in Libya, Syria and Iraq.
  • As for military dictatorships, Huntington adds several twists.
  • He writes, "In the world of oligarchy, the soldier is a radical; in the middle-class world he is a participant and arbiter; as the mass society looms on the horizon he becomes the conservative guardian of the existing order.
  • Thus, paradoxically but understandably," he goes on, "the more backward a society is, the more progressive the role of its military..." And so he explains why Latin America and sub-Saharan Africa underwent a plethora of military coups during the middle decades of the Cold War: The officer corps often represented the most enlightened branch of society at the time.
  • Americans see the military as conservative only because of our own particular stage of development as a mass society.
  • The logic behind much of Huntington's narrative is that the creation of order -- not the mere holding of elections -- is progressive.
  • Only once order is established can popular pressure be constructively asserted to make such order less coercive and more institutionally subtle.
  • Precisely because we inhabit an era of immense social change, there will be continual political upheaval, as human populations seek to live under more receptive institutional orders. To better navigate the ensuing crises, American leaders would do well to read Huntington, so as to nuance their often stuffy lectures to foreigners about how to reform.
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    "In 1968, Harvard political scientist Samuel P. Huntington published Political Order in Changing Societies. Forty-five years later, the book remains without question the greatest guide to today's current events. Forget the libraries of books on globalization, Political Order reigns supreme: arguably the most incisive, albeit impolite, work produced by a political scientist in the 20th century. If you want to understand the Arab Spring, the economic and social transition in China, or much else, ignore newspaper opinion pages and read Huntington."
anonymous

Gaming the System: Video Gamers Help Researchers Untangle Protein Folding Problem: Scie... - 0 views

  • What if the brainpower used playing video games could be channeled toward something more productive, such as helping scientists solve complex biological problems?
  • Their competitive online game "Foldit," released in 2008, enlists the help of online puzzle-solvers to help crack one of science's most intractable mysteries—how proteins fold into their complex three-dimensional forms. The "puzzles" gamers solve are 3-D representations of partially folded proteins, which players manipulate and reshape to achieve the greatest number of points. The scores are based on biochemical measures of how well the players' final structure matches the way the protein appears in nature.
  • The scientists hope to incorporate the newly identified strategies into computer algorithms for improved automated determinations of protein structure. The ultimate hope is to use these techniques to design new proteins to fight diseases such as Alzheimer's and cancer as well as develop vaccines against HIV and malaria.
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    "The combined effort of more than 50,000 online video game players may help scientists better understand how proteins fold, solving one of biochemistry's greatest conundrums." By Nicholette Zeliadt at Scientific American on August 4, 2010.
anonymous

Amiri and the Role of Intelligence in Geopolitical Struggles - 0 views

  • The saga of the missing Iranian nuclear scientist who disappeared from Saudi Arabia last year while on pilgrimage to Mecca reached a critical stage Tuesday.
  • By mid-morning on the United States’ East Coast, Washington had issued its official response: Amiri came to the United States on his own accord and now wanted to leave. It’s significant that this is the first time the U.S. government acknowledged that the Iranian scientist was in the United States. These dramatic developments come in the wake of multiple YouTube videos featuring a man or men claiming to be Amiri and who made contradictory statements, including that he was happily studying in the United States.
  • The exact circumstances that brought Amiri to the United States are critical in comprehending the nature of his involvement with American officials. But those details are unlikely to be made public by either side. And without details, this story offers more questions than answers.
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  • Another alternative emerges, one much more sinister and complicated — though not beyond the pale. Amiri could be a double agent planted by the Iranians to gain information about U.S. intelligence operations.
  • This seems an incredible explanation and assumes he managed to outsmart his American intelligence handlers. But it is not unthinkable, given what happened with Iraqi Shiite leader Ahmed Chalabi, who for years worked with multiple U.S. government agencies while working for Iranian intelligence.
  • This story — like the recent case of the Russian spies caught in the United States — does however underscore the role of intelligence, especially human intelligence operations, in shaping geopolitical struggles.
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    "The saga of the missing Iranian nuclear scientist who disappeared from Saudi Arabia last year while on pilgrimage to Mecca reached a critical stage Tuesday." By StratFor on July 14, 2010.
anonymous

We Only Trust Experts If They Agree with Us - 0 views

  • The investigators found similar results for various other issues, from nuclear waste disposal to gun control. Said one of the authors, “People tend to keep a biased score of what experts believe, counting a scientist as an 'expert' only when that scientist agrees with the position they find culturally congenial."
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    We only consider scientists to be experts when their argument is in line with our own previously held beliefs." By Christie Nicholson at Scientific American Podcast on September 18, 2010.
anonymous

Beyond the 10,000 Hour Rule: Richard Hamming and the Messy Art of Becoming Great - 0 views

  • To me, the speech’s impact diluted among its many disconnected insights. I didn’t come away with a clear new model for how to structure my research career, so I ignored Hamming’s advice, responding politely, but somewhat dismissively, as readers continued to point me toward the talk as a potential source of wisdom. Now that I’m over a decade into my training as a professional scientist, however, I’m finally beginning to notice the elegance behind Hamming’s words. With this talk, I came to realize, he’s capturing a crucial truth: in many fields, including research science, the path to becoming excellent is messy and ambiguous.
  • This rule reduces achievement to quantity: the secret to becoming great is to do a great amount of work. What Hamming emphasizes, however, is that quantity alone is not sufficient. (“I’ve often wondered why so many of my good friends at Bell Labs who worked as hard or harder than I did, didn’t have so much to show for it,” he asks at one point in his speech.) Those 10,000 hours have to be invested in the right things, and as the disjointed nature of Hamming’s talk underscores, the question of what are the right things is slippery and near impossible to nail down with confidence.
  • Embrace Ambiguity
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  • Stay Specific
  • Tinker Often, But Not Too Often
  • Seek Resistance
  • Revel in the Crafstmanship
  • “Great scientists tolerate ambiguity very well,” Hamming says. “They believe the theory enough to go ahead; [but] they doubt it enough to notice the errors and faults so they can step forward and create the new replacement theory.”
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    "In March of 1986, an overflow audience of over 200 researchers and staff members from Bell Laboratories piled into the Morris Research and Engineering Center to hear a talk given by Dr. Richard Hamming, a pioneer in the field of communication theory. He titled his presentation "You and Your Research," and set out to answer a fundamental question: "Why do so few scientists make significant contributions and so many are forgotten in the long run?" Hamming, of course, knew what he was talking about, as he had made his own significant contributions - you can't even glance at the field of digital communications without stumbling over some eponymous Hamming innovation." At Study Hacks on August 9, 2010.
anonymous

Lies, Damned Lies, and Medical Science - 0 views

  • or whatever reason, the appendices removed from patients with Albanian names in six Greek hospitals were more than three times as likely to be perfectly healthy as those removed from patients with Greek names.
  • One of the researchers, a biostatistician named Georgia Salanti, fired up a laptop and projector and started to take the group through a study she and a few colleagues were completing that asked this question: were drug companies manipulating published research to make their drugs look good?
  • Just as I was getting the sense that the data in drug studies were endlessly malleable, Ioannidis, who had mostly been listening, delivered what felt like a coup de grâce: wasn’t it possible, he asked, that drug companies were carefully selecting the topics of their studies—for example, comparing their new drugs against those already known to be inferior to others on the market—so that they were ahead of the game even before the data juggling began?
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  • Maybe sometimes it’s the questions that are biased, not the answers,” he said, flashing a friendly smile.
  • That question has been central to Ioannidis’s career. He’s what’s known as a meta-researcher, and he’s become one of the world’s foremost experts on the credibility of medical research.
  • He and his team have shown, again and again, and in many different ways, that much of what biomedical researchers conclude in published studies—conclusions that doctors keep in mind when they prescribe antibiotics or blood-pressure medication, or when they advise us to consume more fiber or less meat, or when they recommend surgery for heart disease or back pain—is misleading, exaggerated, and often flat-out wrong.
  • He charges that as much as 90 percent of the published medical information that doctors rely on is flawed.
  • “I take all the researchers who visit me here, and almost every single one of them asks the tree the same question,” Ioannidis tells me, as we contemplate the tree the day after the team’s meeting. “‘Will my research grant be approved?’” He chuckles, but Ioannidis (pronounced yo-NEE-dees) tends to laugh not so much in mirth as to soften the sting of his attack. And sure enough, he goes on to suggest that an obsession with winning funding has gone a long way toward weakening the reliability of medical research.
  • “I assumed that everything we physicians did was basically right, but now I was going to help verify it,” he says. “All we’d have to do was systematically review the evidence, trust what it told us, and then everything would be perfect.” It didn’t turn out that way. In poring over medical journals, he was struck by how many findings of all types were refuted by later findings. Of course, medical-science “never minds” are hardly secret. And they sometimes make headlines, as when in recent years large studies or growing consensuses of researchers concluded that mammograms, colonoscopies, and PSA tests are far less useful cancer-detection tools than we had been told; or when widely prescribed antidepressants such as Prozac, Zoloft, and Paxil were revealed to be no more effective than a placebo for most cases of depression; or when we learned that staying out of the sun entirely can actually increase cancer risks; or when we were told that the advice to drink lots of water during intense exercise was potentially fatal; or when, last April, we were informed that taking fish oil, exercising, and doing puzzles doesn’t really help fend off Alzheimer’s disease, as long claimed. Peer-reviewed studies have come to opposite conclusions on whether using cell phones can cause brain cancer, whether sleeping more than eight hours a night is healthful or dangerous, whether taking aspirin every day is more likely to save your life or cut it short, and whether routine angioplasty works better than pills to unclog heart arteries.
  • “I realized even our gold-standard research had a lot of problems,” he says.
  • This array suggested a bigger, underlying dysfunction, and Ioannidis thought he knew what it was. “The studies were biased,” he says. “Sometimes they were overtly biased. Sometimes it was difficult to see the bias, but it was there.” Researchers headed into their studies wanting certain results—and, lo and behold, they were getting them. We think of the scientific process as being objective, rigorous, and even ruthless in separating out what is true from what we merely wish to be true, but in fact it’s easy to manipulate results, even unintentionally or unconsciously. “At every step in the process, there is room to distort results, a way to make a stronger claim or to select what is going to be concluded,” says Ioannidis. “There is an intellectual conflict of interest that pressures researchers to find whatever it is that is most likely to get them funded.”
  • Perhaps only a minority of researchers were succumbing to this bias, but their distorted findings were having an outsize effect on published research.
  • In 2005, he unleashed two papers that challenged the foundations of medical research.
  • He chose to publish one paper, fittingly, in the online journal PLoS Medicine, which is committed to running any methodologically sound article without regard to how “interesting” the results may be. In the paper, Ioannidis laid out a detailed mathematical proof that, assuming modest levels of researcher bias, typically imperfect research techniques, and the well-known tendency to focus on exciting rather than highly plausible theories, researchers will come up with wrong findings most of the time.
  • The article spelled out his belief that researchers were frequently manipulating data analyses, chasing career-advancing findings rather than good science, and even using the peer-review process—in which journals ask researchers to help decide which studies to publish—to suppress opposing views.
  • sure, a lot of dubious research makes it into journals, but we researchers and physicians know to ignore it and focus on the good stuff, so what’s the big deal? The other paper headed off that claim.
  • Ioannidis was putting his contentions to the test not against run-of-the-mill research, or even merely well-accepted research, but against the absolute tip of the research pyramid. Of the 49 articles, 45 claimed to have uncovered effective interventions. Thirty-four of these claims had been retested, and 14 of these, or 41 percent, had been convincingly shown to be wrong or significantly exaggerated. If between a third and a half of the most acclaimed research in medicine was proving untrustworthy, the scope and impact of the problem were undeniable. That article was published in the Journal of the American Medical Association.
  • When a five-year study of 10,000 people finds that those who take more vitamin X are less likely to get cancer Y, you’d think you have pretty good reason to take more vitamin X, and physicians routinely pass these recommendations on to patients. But these studies often sharply conflict with one another. Studies have gone back and forth on the cancer-preventing powers of vitamins A, D, and E; on the heart-health benefits of eating fat and carbs; and even on the question of whether being overweight is more likely to extend or shorten your life. How should we choose among these dueling, high-profile nutritional findings? Ioannidis suggests a simple approach: ignore them all.
  • the odds are that in any large database of many nutritional and health factors, there will be a few apparent connections that are in fact merely flukes, not real health effects—it’s a bit like combing through long, random strings of letters and claiming there’s an important message in any words that happen to turn up.
  • But even if a study managed to highlight a genuine health connection to some nutrient, you’re unlikely to benefit much from taking more of it, because we consume thousands of nutrients that act together as a sort of network, and changing intake of just one of them is bound to cause ripples throughout the network that are far too complex for these studies to detect, and that may be as likely to harm you as help you.
  • nd these problems are aside from ubiquitous measurement errors (for example, people habitually misreport their diets in studies), routine misanalysis (researchers rely on complex software capable of juggling results in ways they don’t always understand), and the less common, but serious, problem of outright fraud (which has been revealed, in confidential surveys, to be much more widespread than scientists like to acknowledge).
  • And so it goes for all medical studies, he says. Indeed, nutritional studies aren’t the worst. Drug studies have the added corruptive force of financial conflict of interest. The exciting links between genes and various diseases and traits that are relentlessly hyped in the press for heralding miraculous around-the-corner treatments for everything from colon cancer to schizophrenia have in the past proved so vulnerable to error and distortion, Ioannidis has found, that in some cases you’d have done about as well by throwing darts at a chart of the genome.
  • Though scientists and science journalists are constantly talking up the value of the peer-review process, researchers admit among themselves that biased, erroneous, and even blatantly fraudulent studies easily slip through it.
  • The ultimate protection against research error and bias is supposed to come from the way scientists constantly retest each other’s results—except they don’t. Only the most prominent findings are likely to be put to the test, because there’s likely to be publication payoff in firming up the proof, or contradicting it.
  • Of those 45 super-cited studies that Ioannidis focused on, 11 had never been retested. Perhaps worse, Ioannidis found that even when a research error is outed, it typically persists for years or even decades. He looked at three prominent health studies from the 1980s and 1990s that were each later soundly refuted, and discovered that researchers continued to cite the original results as correct more often than as flawed—in one case for at least 12 years after the results were discredited.
  • Medical research is not especially plagued with wrongness. Other meta-research experts have confirmed that similar issues distort research in all fields of science, from physics to economics (where the highly regarded economists J. Bradford DeLong and Kevin Lang once showed how a remarkably consistent paucity of strong evidence in published economics studies made it unlikely that any of them were right).
  • Ioannidis initially thought the community might come out fighting. Instead, it seemed relieved, as if it had been guiltily waiting for someone to blow the whistle, and eager to hear more. David Gorski, a surgeon and researcher at Detroit’s Barbara Ann Karmanos Cancer Institute, noted in his prominent medical blog that when he presented Ioannidis’s paper on highly cited research at a professional meeting, “not a single one of my surgical colleagues was the least bit surprised or disturbed by its findings.” Ioannidis offers a theory for the relatively calm reception. “I think that people didn’t feel I was only trying to provoke them, because I showed that it was a community problem, instead of pointing fingers at individual examples of bad research,” he says. In a sense, he gave scientists an opportunity to cluck about the wrongness without having to acknowledge that they themselves succumb to it—it was something everyone else did.
  • The irony of his having achieved this sort of success by accusing the medical-research community of chasing after success is not lost on him, and he notes that it ought to raise the question of whether he himself might be pumping up his findings.
  • “If I did a study and the results showed that in fact there wasn’t really much bias in research, would I be willing to publish it?” he asks. “That would create a real psychological conflict for me.” But his bigger worry, he says, is that while his fellow researchers seem to be getting the message, he hasn’t necessarily forced anyone to do a better job. He fears he won’t in the end have done much to improve anyone’s health. “There may not be fierce objections to what I’m saying,” he explains. “But it’s difficult to change the way that everyday doctors, patients, and healthy people think and behave.”
  • What they’re not trained to do is to go back and look at the research papers that helped make these drugs the standard of care.
  • Tatsioni doesn’t so much fear that someone will carve out the man’s healthy appendix. Rather, she’s concerned that, like many patients, he’ll end up with prescriptions for multiple drugs that will do little to help him, and may well harm him. “Usually what happens is that the doctor will ask for a suite of biochemical tests—liver fat, pancreas function, and so on,” she tells me. “The tests could turn up something, but they’re probably irrelevant. Just having a good talk with the patient and getting a close history is much more likely to tell me what’s wrong.” Of course, the doctors have all been trained to order these tests, she notes, and doing so is a lot quicker than a long bedside chat. They’re also trained to ply the patient with whatever drugs might help whack any errant test numbers back into line.
  • patients often don’t even like it when they’re taken off their drugs, she explains; they find their prescriptions reassuring.
  • “Researchers and physicians often don’t understand each other; they speak different languages,” he says. Knowing that some of his researchers are spending more than half their time seeing patients makes him feel the team is better positioned to bridge that gap; their experience informs the team’s research with firsthand knowledge, and helps the team shape its papers in a way more likely to hit home with physicians.
  • Already feeling that they’re fighting to keep patients from turning to alternative medical treatments such as homeopathy, or misdiagnosing themselves on the Internet, or simply neglecting medical treatment altogether, many researchers and physicians aren’t eager to provide even more reason to be skeptical of what doctors do—not to mention how public disenchantment with medicine could affect research funding.
  • “If we don’t tell the public about these problems, then we’re no better than nonscientists who falsely claim they can heal,” he says. “If the drugs don’t work and we’re not sure how to treat something, why should we claim differently? Some fear that there may be less funding because we stop claiming we can prove we have miraculous treatments. But if we can’t really provide those miracles, how long will we be able to fool the public anyway? The scientific enterprise is probably the most fantastic achievement in human history, but that doesn’t mean we have a right to overstate what we’re accomplishing.”
  • being wrong in science is fine, and even necessary
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    "Much of what medical researchers conclude in their studies is misleading, exaggerated, or flat-out wrong. So why are doctors-to a striking extent-still drawing upon misinformation in their everyday practice? Dr. John Ioannidis has spent his career challenging his peers by exposing their bad science." By David H. Freedman at The Atlantic on November 2010.
anonymous

The Invention of Childhood, or Why It Hurts to Have a Baby [Excerpt] - 0 views

  • It’s impossible to overstate the colossal impact this turn of events had on our evolution, but it requires some context to fully appreciate what it means. Our habit of being born early is part of a larger, stranger phenomenon that scientists call neoteny, a term that covers a lot of evolutionary sins at the same time it explains so much of what makes us the unique, even bizarre creatures we are.
  • you might think that neoteny is simply a matter of a species holding on to as many youthful traits of an ancestor as long into adulthood as possible
  • And our brain development is anything but arrested. In fact, just the opposite. As I said, complicated.
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  • The different ways some parts of us seem to accelerate and mature while others bide their time or halt altogether has generated a flock of terms related to neoteny—paedomorphosis, heterochrony, progenesis, hypermorphosis, and recapitulation.
  • In the end, however, it comes down to this—each represents an evolution of evolution itself, an exceptional and rare combination of adaptations that changed our ancestors so fundamentally that it led to an ape (us) capable of changing the very planet that brought it into existence.5 Put another way, it changed everything.
  • Mostly we think of Darwin’s “descent by natural selection” as a chance transformation of newly arrived mutations—usually physical—into an asset rather than a liability, which is then passed along to the next generation.
  • But what neoteny (and paedomorphosis and all the rest) illustrate is that the forces of evolution don’t simply play with physical attributes, they play with time, too, or more accurately they can shift the times when genes are expressed and hormones flow, which not only alters looks but behavior, with fascinating results.
  • By being born “early,” our youth is amplified and elongated, and it continues to stretch out across our lives into the extended childhood that makes us so different from the other primates that preceded us.
  • All of the evidence emphatically points to our direct, gracile ape ancestors steadily extending their youth. They were inventing childhood.
  • Exactly how all of this unfolded on the wild and sprawling plains of Africa isn’t clear precisely, but there can be no doubt that it did. We stand as the indisputable proof.
  • The clustered neurons that together compose the brains of all primates grow at a rate before birth that even the most objective laboratory researcher could only call exuberant, maybe even scary.
  • Within a month of gestation primate brain cells are blooming by the thousands per second.
  • But for most species that growth slows markedly after birth. The brain of a monkey fetus, for example, arrives on its birthday with 70 percent of its cerebral development already behind it, and the remaining 30 percent is finished off in the next six months. A chimpanzee completes all of its brain growth within twelve months of birth.
  • You and I, however, came into the world with a brain that weighed a mere 23 percent of what it would become in adulthood.
  • even arriving in our early, fetal state, with less than a quarter of our brain development under our belts, we are still born with remarkably large brains.
  • this approach to brain development is so extraordinarily strange and rare that it is unique in nature.
  • evolution doesn’t plan. It simply modifies randomly and moves forward. And in this case, remember, remaining in the womb full term was out of the question. For us it was be born early, or don’t be born.
  • we simply haven’t yet gathered enough clues to know precisely when an early birth became unavoidable. There are, however, a few theories.
  • Some scientists believe earlier births would have begun when the adult brain of some predecessor or another reached 850 cc.
  • The lake, the streams and the rivers that fed it, and the variability of the weather made the area a kind of smorgasbord of biomes—grasslands, desert, verdant shorelines, clusters of forest and thick scrub. The bones of the extinct beasts that lie by the millions in the layers of volcanic ash beyond the shores of Lake Turkana today attest to its ancient popularity.
  • In fact it was so well liked that Homo ergaster, Homo habilis, and Homo rudolfensis were all ranging among its eastern and northern shores 1.8 million years ago
  • Viewed from either end of the spectrum, none of the clues about his age have made much sense to the teams of scientists who have labored over them. Each was out of sync with the other. Some life events were happening too soon, some too late, none strictly adhering to the growth schedules of either modern humans or forest apes. Still, the skeleton’s desynchronized features strongly suggested that the relatives of this denizen of Lake Turkana were almost certainly being born “younger,” elongating their childhoods and postponing their adolescence. Apes may be adolescents at age seven and humans at age eleven, but this creature fell somewhere in between.
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    "At least 27 human species have walked the Earth, but only our lineage survived. Our ancestors may have crossed a cerebral Rubicon that led to babies being born "early""
anonymous

For Goodness' Sake - 0 views

  • “The Price of Altruism” is about far more than Price himself. It covers the entire 150-year history of scientists’ researching, debating and bickering about a theoretical problem that lies at the core of behavioral biology, sociobiology and evolutionary psychology: Why is it that organisms sacrifice themselves for the benefit of others?
  • Haldane was one of the architects of the now familiar “gene’s-eye view” of evolution. Looked at from the gene’s perspective, altruism seems a little less perplexing. When an organism sacrifices its life to save a relative, it helps perpetuate the genes they share.
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    "[The book] is about far more than Price himself. It covers the entire 150-year history of scientists' researching, debating and bickering about a theoretical problem that lies at the core of behavioral biology, sociobiology and evolutionary psychology: Why is it that organisms sacrifice themselves for the benefit of others?" By Frans de Waal at The New York Times Book Review on July 1, 2010.
anonymous

Attacks on Nuclear Scientists in Tehran - 0 views

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    "On the morning of Nov. 29, two Iranian scientists involved in Iran's nuclear development program were attacked. One was killed, and the other was injured. According to Iranian media, the deceased, Dr. Majid Shahriari, was heading the team responsible for developing the technology to design a nuclear reactor core, and Time magazine referred to him as the highest-ranking non-appointed individual working on the project." By Ben West at StratFor on December 1, 2010.
anonymous

How your immune system fires off electrons to repair DNA damage - 0 views

  • One regular offender is the cyclobutane pyrimidine dimer. It's a bulbous ring attached to the elegant double helix of the DNA strand. It latches on to the damaged parts of DNA and is replicated along with them, causing widespread damage. Once it gets started, it can grow until it takes over the system.
  • Fortunately, help is on the way, in the form of an enzyme called photolyase.
  • Photolyase floats around the body, looking for encroachment from the dark side. This enzyme powers itself up using blue light, and then shoots out an electron.
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  • Homegrown resistance speeds it along its way. A molecule in the ring allows the electron to move faster along the ring than it could by hoping through the gap in the middle.
  • The whole process takes less than a hundred trillionths of a second, and when the photolyase hits all the right spots with its electron, the ring is blasted away and the DNA repairs itself to form a perfect strand.
  • Photolyase runs through fish and reptilian systems, but is unknown in mammals. Scientists are now trying to find a way to synthesize and mass-produce this enzyme, so that one day we might be able to repair our DNA with a simple lotion.
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    Scientists have found out how a famous sunburn-healing enzyme works. The way it zaps DNA damage sounds so science fictional that it seems like something that happened a long time ago, in a galaxy far, far away.
anonymous

The Economic Manhattan Project - 1 views

  • According to the organizers, "Concerns over the current financial situation are giving rise to a need to evaluate the very mathematics that underpins economics as a predictive and descriptive science. A growing desire to examine economics through the lens of diverse scientific methodologies — including physics and complex systems — is making way to a meeting of leading economists and theorists of finance together with physicists, mathematicians, biologists and computer scientists in an effort to evaluate current theories of markets and identify key issues that can motivate new directions for research."
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    "After all, we are witnessing the Waterloo of Wall Street. So, ironically, it was in the Canadian province of Ontario, in the small town of Waterloo, that a meeting was convened to shed new light on the world's financial debacle. In a densely packed conference schedule, the general approach was to take measure of the crisis not only in a new way, but with instruments never used before. Even the venue for event, the Perimeter Institute for Theoretical Physics, was itself programmatic, though invitations to participate were sent far beyond the boundaries of economics and physics to mathematicians, lawyers, behavioral economists, risk managers, evolutionary biologists, complexity theorists and computer scientists.- Jordan Mejias, Frankfurter Allgemeine Zeitung"
anonymous

Five Billion Years of Solitude: Lee Billings on the Science of Reaching the Stars - 0 views

  • The question of habitability is a second-order consideration when it comes to Gliese 581g, and that fact in itself reveals where so much of this uncertainty comes from. As of right now, the most interesting thing about the "discovery" of Gliese 581g is that not everyone is convinced the planet actually exists. That's basically because this particular detection is very much indirect - the planet's existence is being inferred from periodic meter-per-second shifts in the position of its host star.
  • So it's very difficult to just detect these things, and actually determining whether they are much like Earth is a task orders of magnitude more difficult still. Notice how I'm being anthropocentric here: "much like Earth." Astrobiology has been derisively called a science without a subject. But, of course, it does have at least one subject: our own living planet and its containing solar system.
  • This is really a chicken-and-egg problem: To know the limits of life in planetary systems, we need to find life beyond the Earth. To find life beyond Earth, it would be very helpful to know the limits of life in planetary systems. Several independent groups are trying to circumvent this problem by studying abiogenesis in the lab - trying to in effect create life, alien or otherwise, in a test tube.
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  • I do think humans are motivated to daydream about extraterrestrial intelligence, and, to put a finer point on it, extraterrestrial "people." They are motivated to dream about beings very much like them, things tantalizingly exotic but not so alien as to be totally incomprehensible and discomforting. Maybe those imagined beings have more appendages or sense organs, different body plans and surface coverings, but they typically possess qualities we recognize within ourselves: They are sentient, they have language, they use tools, they are curious explorers, they are biological, they are mortal - just like humans. Perhaps that's a collective failure of imagination, because it's certainly not very easy to envision intelligent aliens that are entirely divergent from our own anthropocentric preconceptions. Or perhaps it's more diagnostic of the human need for context, affirmation, and familiarity. Why are people fascinated by their distorted reflections in funhouse mirrors? Maybe it's because when they recognize their warped image, at a subconscious level that recognition reinforces their actual true appearance and identity.
  • More broadly, speculating about extraterrestrial intelligence is an extension of three timeless existential questions: What are we, where do we come from, and where are we going?
  • The first pessimistic take is that the differences between independently emerging and evolving biospheres would be so great as to prevent much meaningful communication occurring between them if any intelligent beings they generated somehow came into contact.
  • The second pessimistic take is that intelligent aliens, far from being incomprehensible and ineffable, would be in fact very much like us, due to trends of convergent evolution, the tendency of biology to shape species to fit into established environmental niches.
  • It stands to reason that any alien species that managed to embark on interstellar voyages to explore and colonize other planetary systems could, like us, be a product of competitive evolution that had effectively conquered its native biosphere. Their intentions would not necessarily be benevolent if they ever chose to visit our solar system.
  • The third pessimistic scenario is an extension of the second, and postulates that if we did encounter a vastly superior alien civilization, even if they were benevolent they could still do us harm through the simple stifling of human tendencies toward curiosity, ingenuity, and exploration.
  • Right now reaching low-Earth orbit generally comes at a cost somewhere between $5,000 to $10,000 per kilogram, depending on which launch vehicle is used. This creates an enormous barrier to making profitable ventures in space or building major space-based infrastructure. It also engenders further high costs in the design, fabrication, and testing of most spaceflight hardware, which due to the high cost to orbit must be made as lightweight and reliable as possible.
  • If launch costs fall well below $1,000 per kilogram, a host of economic activities that were previously prohibitively expensive should at a stroke become cheap enough to be readily profitable.
  • I'm an American citizen, so I will focus my comments on the American space program and the American political system. I'm sad to say that in this country, the most powerful nation presently on the planet, space science, exploration, and development are treated as fringe issues at best. Too many politicians, if they consider these issues at all, treat them in one of two ways: Dismissively, as things to be joked about, or cynically, as little more than pork-barrel job programs for their districts, things to be defended purely for the status quo and only given token lip-service when absolutely necessary.
  • And who can blame them? Look at what happens to politicians when they try to talk seriously and ambitiously about space today. They are lampooned and ridiculed by the media and by their political opponents as starry-eyed idealists who are disconnected from everyday realities.
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    "One of the best briefings on the state of the art of interstellar exploration is Lee Billings' essay "Incredible Journey," recently reprinted in a wonderful new anthology called The Best Science Writing Online 2012, edited by Scientific American's Bora Zivkovic and Jennifer Ouellette. I'm very honored to have a piece in the anthology myself: my NeuroTribes interview with John Elder Robison, author of the bestselling memoir of growing up with autism, Look Me in The Eye, and other books. When SciAm's editors suggested that each author in the book interview one of the other authors, I jumped at the chance to interview Billings about his gracefully written and informative article about the practical challenges of space flight. Billings is a freelance journalist who has written for Nature, New Scientist, Popular Mechanics, and Seed. He lives outside New York City with his wife, Melissa."
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