From Stem Cells To New Organs: Scientists Cross Threshold In Regenerative Medicine

Computer-rendered image of human organs. New research suggests that bioengineered replacement organs may be closer thanks to a newly developed matrix on which stem cells can form a three-dimensional organ. (Credit: iStockphoto/Sebastian Kaulitzki)

From Science Daily:

ScienceDaily (Mar. 2, 2009) — By now, most people have read stories about how to "grow your own organs" using stem cells is just a breakthrough away. Despite the hype, this breakthrough has been elusive.

A new report brings bioengineered organs a step closer, as scientists from Stanford and New York University Langone Medical Center describe how they were able to use a "scaffolding" material extracted from the groin area of mice on which stem cells from blood, fat, and bone marrow grew. This advance clears two major hurdles to bioengineered replacement organs, namely a matrix on which stem cells can form a three-dimensional organ and transplant rejection.

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Microsoft Vista Voted Tech World's Top "Fiasco"

From Scientific American:

It's official, Microsoft's Windows Vista operating system gets the prize for being the most overhyped, underperforming information and communication technology (ICT) project. Windows Vista garnered 5,222 of 6,043 votes (86 percent) entered via the Web to snag top honors in the first-ever Fiasco Awards announced in Barcelona, Spain, today, beating out other contenders, including Google's Lively virtual world, the One Laptop per Child computer (developed by the Nicholas Negroponte-chaired One Laptop Per Child Association, Inc.) and Second Life. Second prize went to SAGA, the oft-malfunctioning administration and academic management system developed by Spain's Catalan Education Department for public school teachers in Catalonia.

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Microsoft's Glimpse Of The Future

From CNET:

REDMOND, Wash.--At Microsoft's TechFest, it takes a little imagination to see how the research technologies might eventually come to market.

A new video from Microsoft shows in an elegant, if utopian way, what it might look like if all of those gadgets came together several years hence. Earlier on Friday, Microsoft Business Division President Stephen Elop showed the video in a speech at the University of Pennsylvania's Wharton School of Business.

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Intelligent Use Of The Earth's Heat

From E! Science News:

Geothermal energy is increasingly contributing to the power supply world wide. Iceland is world-leader in expanding development of geothermal utilization: in recent years the annual power supply here doubled to more than 500 MW alone in the supply of electricity. And also in Germany, a dynamic development is to be seen: over 100 MW of heat are currently being provided through geothermal energy. Alone in the region of Travale, in the pioneering country Italy, a team of european scientists have localizied geothermal reservoirs, holding a potential comparable to the effectiveness of 1.000 wind power plants. This is one of the results presented at the international final conference of the project „I-GET" (Integrated Geophysical Exploration Technologies for deep fractured geothermal systems) in Potsdam. The aim of this European Union project, in which seven european nations participated, was the development of cutting-edge geophysical methods with which potential geothermal reservoirs can be safely explored and directly tapped.

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reCaptcha: How To Turn Blather Into Books

Von Ahn: The professor invented reCaptcha in 2007. Since then, its users have translated 5 billion words. (Gene J. Puskar/AP)

From The Christian Science Monitor:

Ten seconds of work has digitized libraries, whether the amateur translators know it or not.

When you buy a concert ticket on Ticketmaster, post something for sale on Craigslist, or poke an old friend on Facebook, you may not know it, but you’re helping to put millions of books online in a vast free library.

To access these websites, you must decipher two squiggly words to prove that you’re not a computer program designed to spam the site. Once it knows you’re human, the website lets you continue.

Those two decoded words don’t disappear, however. In fact, your brain has deciphered words that had baffled the scanning software used for an enormous project to digitize every public domain book in the world.

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Study Finds Sunny Side of Eggs

From Live Science:

When it comes to public consumption of nutrition studies, an old adage applies: Everything in moderation.

The latest study looking at what you should eat involves eggs. Despite decades of advice that the cholesterol in eggs is bad for you, researchers in Canada now report evidence that eggs might reduce another heart disease risk factor — high blood pressure.

The scientists found egg proteins that, in laboratory simulations of the human digestive process, seem to act like a popular group of prescription medications in lowering blood pressure. The findings are detailed in the Feb. 11 issue of the American Chemical Society's Journal of Agricultural and Food Chemistry.

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Is the Press Misreporting the Environment Story?

Melted water runs over the Greenlandic Icecap. Uriel Sinai / Getty

From Time Magazine:

When I tell other journalists that I cover the environment, I usually get the same reaction: you're really lucky. (I'm assuming they don't just mean because I still have a job.) After years on the back pages and the back burner, the environment has emerged as one of the major issues facing the globe today, with the attendant media attention to match. But what keeps it perpetually fresh as a subject is its scope — climate change touches on science, Washington, business, society, geopolitics, even religion, and the reporting does as well. The sheer complexity means there's always something to write, blog or podcast about — as my editor likes to remind me. Frequently.

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Fragments of Ancient Egyptian Papyrus Found

3,000-Year-Old Document. For 100 years, archaeologists have been trying to piece together fragments to this 3,000-year-old document, written on a papyrus stem. The Egyptian document enumerates all the Egyptian kings and when they ruled. Newly found fragments to the document should help in piecing together the puzzle. Museo Egizio, Torino

From Discovery News:

Feb. 27, 2009 -- Some newly recovered papyrus fragments may finally help solve a century-old puzzle, shedding new light on ancient Egyptian history.

Found stored between two sheets of glass in the basement of the Museo Egizio in Turin, the fragments belong to a 3,000-year-old unique document, known as the Turin Kinglist.

Like many ancient Egyptian documents, the Turin Kinglist is written on the stem of a papyrus plant.

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Bye, Tech: Dealing With Data Rot

Image: Audio recordings of 40-year-old interviews with rock stars were transferred to new tape to preserve them, but the newer tapes are disintegrating. (CBS)

From CBS News:

As Storage Media And Software Applications Advance Or Die Out, Years Of Precious Memories Are Threatened

(CBS) Sooner or later, it affects every audio recording, video recording and computer file. Contributor David Pogue looks at what happens when technological progress leaves your most precious memories and recordings behind.
Lydia Robertson is a filmmaker. But you've probably never seen her first movie, the one she made in high school.

"It's called 'The Chicken Lady,' a horror-comedy," she said. "It's the most ridiculous film ever made. It might be one of the worst films ever made! But we learned a lot, and that was the point."

Trouble is, she hasn't seen it, either.

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Lower Increases In Global Temperatures Could Lead To Greater Impacts Than Previously Thought, Study Finds

The "burning embers diagram": Risks from climate change by reason for concern, 2001 (left) compared with 2007. (Credit: Smith et al., PNAS)

From Science Daily:

ScienceDaily (Mar. 1, 2009) — A new study by scientists updating some of the findings of the Intergovernmental Panel on Climate Change (IPCC) 2001 Third Assessment Report finds that even a lower level of increase in average global temperatures due to greenhouse gas emissions could cause significant problems in five key areas of global concern.

The study, published in the Proceedings of the National Academy of Sciences, is titled "Assessing Dangerous Climate Change Through an Update of the IPCC 'Reasons for Concern."

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Complexity of Spit Revealed

From Live Science:

Saliva tells a lot about a person these days, ranging from ancestry to criminal connections. But drool still holds many mysteries, including what the heck lives in it and why each of us has our own salivary signature.

A new study tries to clean this up a bit, revealing that there is a lot of bacterial diversity living in the moisture in our mouths, both within and among individuals.

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Spacecraft Sees Spectacular Solar Eclipse on Moon

A still of the Kaguya/Selene probe's high-definition video of the solar eclipse seen from the moon. Japan Aerospace Exploration Agency

From FOX News:

There was a solar eclipse earlier this month — but it wasn't visible anywhere on Earth.

Rather, a Japanese space probe in orbit around the moon got spectacular high-definition video of the sun being blocked — by the Earth, producing an otherworldly "diamond-ring" eclipse.

It may be only the third time such an eclipse has been viewed by terrestrials, human or otherwise.

An American lunar lander got a blurry snapshot of a solar eclipse in 1967, and two years later Apollo 12 astronauts got treated to the same thing on their way back from the moon.

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The Big Melt

From Popular Science:

A two-year polar survey finds ice sheets melting faster than expected, and more grim news.

Less than two weeks before scientists from around the world gather in Copenhagen to issue recommendations for a new global climate-change treaty, the results from the two-year International Polar Year survey have arrived. They are not pleasant.

Here's a quick summary: The Antarctic and Greenland ice shelves are melting more quickly than we realized. Year-round Arctic sea-ice levels reached their lowest levels in 30 years, which is how long we've been keeping records. The seawater beneath Antarctica is freshening, which indicates ice melt. Global ocean currents are beginning to shift. "We're beginning to get hints of change in ocean circulation; that'll have a dramatic impact on the global climate system," IPY director David Carlson told reporters in Geneva.

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Do These Mysterious Stones Mark The Site Of The Garden Of Eden?

The site has been described as 'extraordinary' and 'the most important' site in the world

From The Daily Mail:

For the old Kurdish shepherd, it was just another burning hot day in the rolling plains of eastern Turkey. Following his flock over the arid hillsides, he passed the single mulberry tree, which the locals regarded as 'sacred'. The bells on his sheep tinkled in the stillness. Then he spotted something. Crouching down, he brushed away the dust, and exposed a strange, large, oblong stone.

The man looked left and right: there were similar stone rectangles, peeping from the sands. Calling his dog to heel, the shepherd resolved to inform someone of his finds when he got back to the village. Maybe the stones were important.

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Mega-Laser To Probe Secrets Of Exoplanets

Artist's impression of a gas giant planet circling the star Gliese 436. The new laser will investigate the internal chemistry of these vast planets (Image: NASA)

From New Scientist:

AN AWESOME laser facility, built to provide fusion data for nuclear weapons simulations, will soon be used to probe the secrets of extrasolar planets.

The National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory in California was declared ready for action earlier this month. Its vital statistics reveal it to be a powerful beast: its ultraviolet lasers can deliver 500 trillion watts in a 20-nanosecond burst. That power opens up new scientific possibilities.
It can deliver 500 trillion watts in a 20-nanosecond burst - opening up new scientific possibilities

For instance, Raymond Jeanloz, an astronomer at the University of California, Berkeley, will use the device to recreate the conditions inside Jupiter and other larger planets, where pressures can be 1000 times as great as those at the centre of the Earth.

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HIV Is Evolving To Evade Human Immune Responses

Rendering of HIV infecting a cell. (Credit: iStockphoto/Sebastian Kaulitzki)

From Science Daily:

ScienceDaily (Feb. 28, 2009) — HIV is evolving rapidly to escape the human immune system, an international study led by Oxford University has shown. The findings, published in Nature, demonstrate the challenge involved in developing a vaccine for HIV that keeps pace with the changing nature of the virus.

‘The extent of the global HIV epidemic gives us a unique opportunity to examine in detail the evolutionary struggle being played out in front of us between an important virus and humans,’ says lead researcher Professor Philip Goulder of the Peter Medawar Building for Pathogen Research at Oxford University.

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Writing Math On The Web

From American Scientist:

The Web would make a dandy blackboard if only we could scribble an equation.

The world wide web was invented at a physics laboratory, and the first users were scientists and engineers. You might think, therefore, that this new channel of communication would be especially well adapted to scientific discourse—that it would facilitate the expression of ideas like


or

If only it were so! The truth is, the basic protocols of the Web offer almost no support for rendering mathematics or other specialized notations such as chemical formulas. Presenting such material on a Web page often requires software add-ons or plug-ins to be installed by the author or the reader or both. Fine-tuning the display of mathematics can be a fussy and finicky process, not much easier than formatting equations with a typewriter. The results sometimes render differently—or not at all—in various Web browsers. This is a sad situation: As the Web has evolved into a thriving marketplace and playground, the scholarly and scientific community that created the technology has not been well served.

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The Shoe Fits! 1.5 Million-Year-Old Human Footprints Found

A photograph of the footprint's upper footprint surface showing good definition of the toe pads; the second toe is partially obscured by the third toe. Credit: Matthew Bennett/Bournemouth University

From Live Science:

Early humans had feet like ours and left lasting impressions in the form of 1.5 million-year-old footprints, some of which were made by feet that could wear a size 9 men's shoe.

The findings at a Northern Kenya site represent the oldest evidence of modern-human foot anatomy. They also help tell an ancestral story of humans who had fully transitioned from tree-dwellers to land walkers.

"In a sense, it's like putting flesh on the bones," said John Harris, an anthropologist with the Koobi Fora Field School of Rutgers University. "The prints are so well preserved ."

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Are You Out There, ET? Searches For Habitable Planets Are About To Get A Boost

UP, UP AND AWAY: The Kepler satellite, scheduled to take flight March 6, is lifted for attachment to its launch rocket at Cape Canaveral Air Force Station in Florida. Kepler will look for Earth-like planets that may be hospitable to life. NASA

From Scientific American:

Next week brings a milestone in the search for extraterrestrial life with the scheduled launch Friday of NASA's Kepler satellite. The mission, named for 16th- and 17th-century German astronomer Johannes Kepler, will study a group of stars for three-plus years in search of subtle, periodic dips in stellar brightness—the telltale signs of planetary orbits. Although more than 300 planets outside the solar system have already been found using this method, among other techniques, Kepler's strength will lie in its instruments' sensitivity to smaller, cooler planets more hospitable to life and more like our own.

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'Eye of God': The nebula that watches our tiny world from 700 light years away

The 'eye of god' - also known as the Helix nebula - is so huge, it would take a
beam of light two-and-a-half years to cross it

From The Daily Mail:

It stares down at us from the depths of space, watching our tiny world from 700 light years away.

Scientists have nicknamed the image - captured by a giant telescope on the Chilean mountains - the eye of God.

In fact, it shows the death throes of a star similar to our sun, before it retires as a 'white dwarf' believed to be the final evolutionary state of a medium-sized star.

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