Sunday, October 11, 2009

7% Of U.S. H1N1 Patients in ICUs Died: Study

An electron microscope image shows an A H1N1 swine flu virus culture obtained from a California patient. (C. S. Goldsmith and A. Balish/Centers for Disease Control/Reuters)

From CBC:

One quarter of Americans sick enough to be admitted to hospital with swine flu last spring wound up needing intensive care and seven per cent of them died, the first study of the early months of the global epidemic suggests. That's a little higher than with ordinary seasonal flu, several experts said.

What is striking and unusual is that children and teens accounted for nearly half of the hospitalization cases, including many who were previously healthy. The study did not give a breakdown of deaths by age.

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Rapidly Erupting Volcanoes Pose Major Risk

A huge cloud of ash spewed from the Chaiten volcano, some 1,300 km south of Santiago when it erupted in 2008. Credit: AFP

From Cosmos:

PARIS: Magma from a Chilean volcano shot through Earth's crust at around a metre per second, a speed highlighting the perils from so-called rhyolitic volcanoes, says a new study.

Volcanoes in this category provide some of Earth's most explosive events. They are characterised by a dome of hardened magma which covers their central vent and can blow with catastrophic force, often with scant warning.

They include Vesuvius, Krakatoa and Mount St. Helens - names that have gone down in history for inflicting loss of life and massive damage.

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Timing the Singularity


From The Futurist:

The Singularity. The event when the rate of technological change becomes human-surpassing, just as the advent of human civilization a few millenia ago surpassed the comprehension of non-human creatures. So when will this event happen?

There is a great deal of speculation on the 'what' of the Singularity, whether it will create a utopia for humans, cause the extinction of humans, or some outcome in between. Versions of optimism (Star Trek) and pessimism (The Matrix, Terminator) all become fashionable at some point. No one can predict this reliably, because the very definition of the singularity itself precludes such prediction. Given the accelerating nature of technological change, it is just as hard to predict the world of 2050 from 2009, as it would have been to predict 2009 from, say, 1200 AD. So our topic today is not going to be about the 'what', but rather the 'when' of the Singularity.

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Range Of Peak Oil Dates All Too Soon To Prepare?


From Future Pundit:

The range of dates over which Peak Oil is expected to happen does not provide enough time for governments to prepare policies mitigate the impacts.

The debate over exactly when we will reach "peak oil" is irrelevant. No matter what new oil fields we discover, global oil production will start declining in 2030 at the very latest.

That's the conclusion of the most comprehensive report to date on global oil production, published on 7 October by the UK Energy Research Centre.

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How To Get More Bicyclists On The Road

CYCLE TRACK, here along New York City's Ninth Avenue, keeps bicyclists physically separated from motor vehicle traffic. Such designs make riding safer and could boost the number of women cyclists. Monica Bradley

From Scientific American:

To boost urban bicycling, figure out what women want.

Getting people out of cars and onto bicycles, a much more sustainable form of transportation, has long vexed environmentally conscious city planners. Although bike lanes painted on streets and automobile-free “greenways” have increased ridership over the past few years, the share of people relying on bikes for transportation is still less than 2 percent, based on various studies. An emerging body of research suggests that a superior strategy to increase pedal pushing could be had by asking the perennial question: What do women want?

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U.S. Must Focus On Protecting Critical Computer Networks From Cyber Attack, Experts Urge

From Science Daily:

Science Daily (Oct. 9, 2009) — Because it will be difficult to prevent cyber attacks on critical civilian and military computer networks by threatening to punish attackers, the United States must focus its efforts on defending these networks from cyber attack, according to a new RAND Corporation study.

The study finds that the United States and other nations that rely on externally accessible computer networks—such as ones used for electric power, telephone service, banking, and military command and control—as a foundation for their military and economic power are subject to cyber attack.

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More Than a Storm Chaser

Texas Tech graduate student Sarah Dillingham checks for the green light on a StickNet deployed for a squall line that passed over Reese Technology Center in February 2009. Credit: BCM, Texas Tech University

From Live Science:

This summer, the Verification of the Origins of Rotation in Tornadoes EXperiment 2 (VORTEX2) brought 80 scientists and crew members and dozens of research vehicles and platforms to the tornado-prone regions of the United States to conduct the most detailed studies to date of tornadoes. Sarah Dillingham was part of that effort, one of the members of Texas Tech’s Multiple Observations of Boundaries In the Local storm Environment (MOBILE) team, helping deploy StickNet mobile sensors in the paths of dangerous storms. VORTEX2 has wound down for the 2009 season, but will re-emerge in 2010. Dillingham offers her thoughts on her first yield of field research as she responds to the ScienceLives 10 Questions below.

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In Search of Chinese Science


The New Atlantis:


One of my schoolmasters was fond of saying that there are only two worthwhile forms of worldly immortality: to get a poem in the Oxford Book of English Verse, or to have a mathematical theorem named after you. The British scholar Joseph Needham (1900–1995) was no better than a passable amateur poet, judging by the handful of verses in Simon Winchester’s biography of him. He did have a scientific training, but it was in biochemistry, not math, so there is no Needham’s Theorem, nor even a Needham Conjecture. He does, though, enjoy the rare distinction of having a Question named for him. Not a mere question, but a Question, one that has generated endless discussion and many theories.

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The Boy Aged Two With Einstein's IQ: Why Little Oscar Is Britain's Youngest Boy To Be Accepted Into Mensa

Little smasher: Oscar Wrigley is the youngest ever member of Mensa,
aged two years and five months


From the Daily Mail:

While other two-year-olds are discovering the joy of playgrounds, Oscar Wrigley would rather be learning about wildlife or the history of Ancient Rome.

He has recently taken to conducting classical music as he listens in the back of the car and identifies the different instruments.

So his parents were not surprised when, at the ripe old age of two years, five months and 11 days, he became the youngest boy in Britain to be accepted by Mensa.

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What Happened To Global Warming?

From The BBC:

This headline may come as a bit of a surprise, so too might that fact that the warmest year recorded globally was not in 2008 or 2007, but in 1998.


But it is true. For the last 11 years we have not observed any increase in global temperatures.

And our climate models did not forecast it, even though man-made carbon dioxide, the gas thought to be responsible for warming our planet, has continued to rise.

So what on Earth is going on?

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Chemists Win Nobel Prize For Atom-by-Atom Ribosome Map

The Ribosome

From Popular Science:

Rounding out the 2009 science Nobel Prizes are Venkatraman Ramakrishnan, Thomas A. Steitz, and Ada E. Yonath, who will receive the prize in chemistry for their work on an atomic-scale map of the ribosome.

Ribosomes are the cellular organelle responsible for assembling amino acids into proteins. If DNA is the blueprint, ribosomes are the construction workers. Ribosomes themselves are composed of a combination of RNA and specialized proteins.

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I Didn't Sin—It Was My Brain

From Discover:

Brain researchers have found the sources of many of our darkest thoughts, from envy to wrath.

Why does being bad feel so good? Pride, envy, greed, wrath, lust, gluttony, and sloth: It might sound like just one more episode of The Real Housewives of New Jersey, but this enduring formulation of the worst of human failures has inspired great art for thousands of years. In the 14th century Dante depicted ghoulish evildoers suffering for eternity in his masterpiece, The Divine Comedy. Medieval muralists put the fear of God into churchgoers with lurid scenarios of demons and devils. More recently George Balanchine choreographed their dance.

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Unravelling The Secret Of Ageing

Australian researcher Elizabeth Blackburn, whose co-discovery of telomeres has won the 2009 Nobel Prize for Physiology or Medicine. Credit: Elizabeth Finkel/COSMOS

From Cosmos:

More than 30 years after discovering an enzyme that prevents chromosomes from fraying, Elizabeth Blackburn is still unravelling the mystery of why our cells age.

Elizabeth Blackburn is not a household name. But the string of illustrious science awards she holds already suggest she is a hot favourite for a Nobel Prize. And that's exactly what happened - finally in 2009, more than 27 years after her initial research.

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Bodies In Sync

Photo: Two young bonobos exhibit the ape equivalent of the human laugh, a “play face,” which is accompanied by laugh-like panting sounds. Just as in humans, if one ape laughs others usually do as well, especially during wrestling and tickling games.
Frans de Waal


From Natural History Magazine:

Contagious laughter, yawns, and moods offer insight into empathy’s origins.

One morning, the principal’s voice sounded over the intercom of my high school with the shocking announcement that a popular teacher of French had just died in front of his class. Everyone fell silent. While the headmaster went on to explain that the teacher had suffered a heart attack, I couldn’t keep myself from a laughing fit. To this day, I feel embarrassed.

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Saturday, October 10, 2009

Classical Chaos Occurs In The Quantum World, Scientists Find

This image shows the kind of pictures Jessen’s team produces with tomography. The top two spheres are from a selected experimental snapshot taken after 40 cycles of changing the direction of the axis of spin of a cesium atom, the quantum “spinning top.” The two spheres below are theoretical models that agree remarkably with the experimental results. (Credit: Image courtesy of Poul Jessen)

From Science Daily:

ScienceDaily (Oct. 8, 2009) — Chaotic behavior is the rule, not the exception, in the world we experience through our senses, the world governed by the laws of classical physics.

Even tiny, easily overlooked events can completely change the behavior of a complex system, to the point where there is no apparent order to most natural systems we deal with in everyday life.

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'First Bird' Not Very Bird-Like

The bones of the primitive bird Archaeopteryx had flattened and parallel bone cells, one of the signs that this bird grew slowly, more like non-avian dinosaurs, researchers report in the journal PLoS ONE. Credit: Gregory Erickson.

From Live Science:

A feathered beast that lived some 150 million years ago and which is considered the first bird likely grew more like its sluggish ancestors, the dinosaurs.

That's according to new analyses of tiny bone chips taken from Archaeopteryx and detailed this week in the journal PLoS ONE. The study researchers estimate a 970-day period from baby Archaeopteryx to an adult. For comparison, birds reach adult size in a matter of weeks.

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Just How Sensitive Is Earth's Climate to Atmospheric Carbon Dioxide?

CLIMATE RECORD: The records preserved in stalagmites and ocean fossilsm, such as those harvested from mud cores drilled by the "Resolution" pictured here, suggest that CO2 levels in the atmosphere have an outsized effect on the Earth's climate. © Science / AAAS

From Scientific American:

Two new studies look far back in geologic time to determine how sensitive the global climate is to atmospheric CO2 levels.

Carbon dioxide levels climbing toward a doubling of the 280 parts per million (ppm) concentration found in the preindustrial atmosphere pose the question: What impact will this increased greenhouse gas load have on the climate? If relatively small changes in CO2 levels have big effects—meaning that we live in a more sensitive climate system—the planet could warm by as much as 6 degrees Celsius on average with attendant results such as changed weather patterns and sea-level rise. A less sensitive climate system would mean average warming of less than 2 degrees C and, therefore, fewer ramifications from global warming.

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Word Has It That eReaders Will Open The Next Chapter


From Times Online:

Microsoft and Apple are about to follow the tablet trend.

TRAVELLING between airports has given analyst Jon Peddie lots of time to study tech trends. There was the rise of the mobile, laptops, the iPod, the BlackBerry and the iPhone.

Now Peddie, who runs California-based Jon Peddie Research, sees another change coming: the rise of the eReader.

Laptops are becoming less popular, he reckons, and even netbooks are fading. The new must-have is an eReader.

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The Evolving Face Of Social Networks

Illustration: Gennady Kurbat/Getty Images

From The Guardian:

Laura Parker: What can evolutionary graph theory teach us about the spread of ideas on social networks such as Facebook and Twitter?

It seems that everyone is excited about social networks. But not quite in the same way as Harvard graduate student Erez Lieberman, whose evolutionary graph theory is encouraging people to think about social networks in a different way: as an evolving population.

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Overrated Optimism: The Peril of Positive Thinking

Tom Stewart / CORBIS

From Time Magazine:

If you're craving a quick hit of optimism, reading a news magazine is probably not the best way to go about finding it. As the life coaches and motivational speakers have been trying to tell us for more than a decade now, a healthy, positive mental outlook requires strict abstinence from current events in all forms. Instead, you should patronize sites like Happynews.com, where the top international stories of the week include "Jobless Man Finds Buried Treasure" and "Adorable 'Teacup Pigs' Are Latest Hit with Brits."

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