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The ringed asteroid

March 28, 2014 11:51 am | News | Comments

Benefited from a rare occultation on June 3, 2013, researchers observed the asteroid Chariklo when it passed by a star that concealed it for several seconds. Although the astronomer planned only to measure its size, they were surprised to discover this “centaur”, which has an unstable orbit that passes through the outer planets, has two thin rings made of ice. It is only the fifth Solar System object to exhibit such a system.

Science with “bling”

March 28, 2014 8:49 am | by Manuel Gnida, SLAC National Accelerator Laboratory | News | Comments

A research team led by SLAC National Accelerator Laboratory scientists has uncovered a potential new route to produce thin diamond films for a variety of industrial applications, from cutting tools to electronic devices to electrochemical sensors. The scientists added a few layers of graphene to a metal support and exposed the topmost layer to hydrogen.

Study: Married folks have fewer heart problems

March 28, 2014 8:22 am | by Marilynn Marchione - AP Chief Medical Writer - Associated Press | News | Comments

What's good for the heart? Marriage, researchers say. A study of more than 3.5 million Americans finds that married people are less likely than singles, divorced or widowed folks to suffer any type of heart or blood vessel problem. This was true at any age, for women as well as for men, and regardless of other heart disease risk factors they had such as high cholesterol or diabetes.

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Researcher invents “mini heart” to help return venous blood

March 27, 2014 2:20 pm | News | Comments

A new organ has been developed at George Washington Univ. to help return blood flow from veins lacking functional valves. A rhythmically contracting cuff made of cardiac muscle cells surrounds the vein acting as a 'mini heart' to aid blood flow through venous segments. The cuff can be made of a patient’s own adult stem cells, eliminating the chance of implant rejection.

Newfound pink world lurks at solar system fringes

March 27, 2014 9:30 am | by Alicia Chang, AP Science Writer | News | Comments

Until now, the lone known resident in the region of the solar system beyond Pluto was an oddball dwarf planet spotted in 2003 named Sedna. For years, astronomers hunted in vain for other Sednas in the little-studied fringes of the solar system. Now, they’ve found one: a pink frozen world 7.5 billion miles from the sun. And astronomer think they will find others.

Desktop human “body” could reduce need for animal drug tests

March 26, 2014 1:13 pm | News | Comments

Call it “homo minutus”. A team at Los Alamos National Laboratory is developing four human organ constructs (liver, heart, lung and kidney) that will work together to serve as a drug and toxicity analysis system that can mimic the actual response of human organs. Called ATHENA, for Advanced Tissue-engineered Human Ectypal Network Analyzer, the system will fit neatly on a desk.

Last drinks: Brain’s mechanism knows when to stop

March 26, 2014 1:05 pm | News | Comments

A new brain imaging study in Australia found a “stop mechanism” that determined brain signals telling the individual to stop drinking water when no longer thirsty. The study, which used magnetic resonance imaging, also gauged the brain effects of drinking more water than required.

Students virtually dissect hologram-like 3-D cadaver

March 26, 2014 7:49 am | by Laura Bailey, Univ. of Michigan | News | Comments

The 3-D virtual reality cadaver floats in space like a hologram on an invisible gurney. Univ. of Michigan 3-D Lab employee Sean Petty stands a few inches away. Petty wears special glasses and pilots a joystick to arbitrarily slice away sections of the cadaver. He enlarges and turns the body for a better view of the detailed anatomy inside.

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Plasma tool used to destroy cancer cells

March 25, 2014 1:19 pm | News | Comments

Adopted a common technique used in biochemistry, called agarose gel electrophoresis, researchers have investigated the damage to DNA that might have been caused by use of an atmospheric pressure plasma jet. This qualitative and quantitative study could ultimately lead to plasma-based tools for cancer therapy or hospital hygiene and other purposes.

Plugging the hole in Hawking’s black hole theory

March 24, 2014 3:38 pm | News | Comments

Recently, physicists have been poking holes in Stephen Hawking’s black hole theory, including Hawking himself. For decades, physicists have been trying to solve the mystery of black holes and Hawking, considered to be the foremost expert on the subject, has continually revised his opinions on this cosmic puzzle. Now, a Michigan State Univ. professor believes he has solved a fundamental problem in Hawking’s theory: the information paradox.

Researcher: Study on element could change ballgame on radioactive waste

March 24, 2014 9:48 am | News | Comments

Groundbreaking work by a team of chemists on a fringe element of the periodic table could change how the world stores radioactive waste and recycles fuel. In carefully choreographed experiments, researchers in Florida have found that californium (Cf) had amazing abilities to bond and separate other materials. They also found it was extremely resistant to radiation damage.

Engineers design “living materials”

March 24, 2014 9:45 am | by Anne Trafton, MIT News Office | News | Comments

Massachusetts Institute of Technology engineers have coaxed bacterial cells to produce biofilms that can incorporate non-living materials, such as gold nanoparticles and quantum dots. These “living materials” combine the advantages of live cells, which respond to their environment and produce complex biological molecules, with the benefits of nonliving materials, which add functions such as conducting electricity or emitting light.

Camera used on moon landing sold for $758,489

March 24, 2014 9:19 am | News | Comments

A Hasselblad 500 sold over the weekend at an auction in Austria was described as being the only camera that made it to the moon and back. It was part of the equipment carried by the 1971 Apollo 15 mission. Cameras from other missions were left behind to make room for mineral samples.

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Toilet tech fair tackles global sanitation woes

March 24, 2014 9:10 am | by Katy Daigle, AP Environment Writer | News | Comments

Scientists who accepted the Bill & Melinda Gates Foundation's challenge to reinvent the toilet showcased their inventions in New Delhi on Saturday. The primary goal: to sanitize waste, use minimal water or electricity and produce a usable product at low cost. The World Bank estimates the annual global cost of poor sanitation at $260 billion and India is by far the worst culprit.

New hypothesis explains why Earth is continually capable of supporting life

March 19, 2014 2:25 pm | News | Comments

An international research team has documented evidence suggesting that part of the reason that the Earth has become neither sweltering like Venus nor frigid like Mars lies with a built-in atmospheric carbon dioxide regulator. Basically, ”fresh” rock exposed by uplift also emits carbon through a chemical weathering process, which replenishes the atmospheric carbon dioxide.

Soccer displays fractal dynamics

March 19, 2014 9:14 am | News | Comments

Despite their seemingly arbitrary decisions, soccer players obey certain rules, as they constantly adjust their positions in relation to their teammates, opponents, the ball and the goal. A team of scientists in Japan has analyzed the time-dependent fluctuation of both the ball and all players’ positions throughout an entire match and have discovered that a simple rule governs the complex dynamics of an important piece of the game.

Frozen for 1,600 years, Antarctic moss revived

March 19, 2014 8:43 am | by Seth Borenstein, AP Science Writer | News | Comments

Scientists have revived a moss plant that was frozen beneath the Antarctic ice and seemingly lifeless since the days of Attila the Hun. Dug up from Antarctica, the simple moss was about 1,600 years old, black and looked dead. But when it was thawed in a British lab's incubator, it grew again.

Marijuana study in veterans wins federal backing

March 17, 2014 2:22 pm | by Matthew Perrone - AP Health Writer - Associated Press | News | Comments

The federal government has signed off on a long-delayed study looking at marijuana as a treatment for veterans with post-traumatic stress disorder, a development that drug researchers are hailing as a major shift in U.S. policy. The Dept. of Health and Human Services' decision surprised marijuana advocates who have struggled for decades to secure federal approval for research into the drug's medical uses.

In the laboratory, scientists coax E. coli to resist radiation damage

March 17, 2014 7:45 am | News | Comments

Capitalizing on the ability of an organism to evolve in response to punishment from a hostile environment, scientists have coaxed the model bacterium Escherichia coli to dramatically resist ionizing radiation and, in the process, reveal the genetic mechanisms that make the feat possible. The study provides evidence that just a handful of genetic mutations give E. coli the capacity to withstand doses of radiation.

Study to test "chocolate" pills for heart health

March 17, 2014 2:18 am | by Marilynn Marchione - AP Chief Medical Writer - Associated Press | News | Comments

It won't be nearly as much fun as eating candy bars, but a big study is being launched to see if pills containing the nutrients in dark chocolate can help prevent heart attacks and strokes. The pills are so packed with nutrients that you'd have to eat a gazillion candy bars to get the amount being tested in this study, which will enroll 18,000 men and women nationwide.

Innovative solar-powered toilet ready for India unveiling

March 14, 2014 11:54 am | News | Comments

A self-contained, waterless toilet, designed and built using a $777,000 grant from the Bill & Melinda Gates Foundation, has the capability of heating human waste enough to sterilize the waste and create biochar, a highly porous charcoal. The toilet, fueled by the sun, is being developed to help some of the 2.5 billion people around the world lacking safe and sustainable sanitation, and will be unveiled in India this month.

Roomy cages built from DNA

March 14, 2014 11:48 am | News | Comments

Move over, nanotechnologists, and make room for the biggest of the small. Scientists at the Harvard's Wyss Institute have built a set of self-assembling DNA cages one-tenth as wide as a bacterium. The structures are some of the largest and most complex structures ever constructed solely from DNA.

Emotion detectors could make driving safer

March 14, 2014 10:46 am | News | Comments

Technology now allows us to read facial expressions and identify which of the seven universal emotions a person is feeling: fear, anger, joy, sadness, disgust, surprise or suspicion. This is very useful in video game development, medicine, marketing and, perhaps less obviously, in driver safety. Scientists and automakers are now using these tools and embedded cameras to observe drivers and determine when driver irritation takes place.

Amsterdam canal house built with 3-D printer

March 14, 2014 9:58 am | by Toby Sterling, Associated Press | News | Comments

Hundreds of years after wealthy merchants began building the tall, narrow brick houses that have come to define Amsterdam's skyline, Dutch architects are updating the process for the 21st century: fabricating pieces of a canal house out of plastic with a giant 3-D printer and slotting them together like oversized Lego blocks.

First thin films of spin ice reveal cold secrets

March 12, 2014 8:25 am | News | Comments

Thin films of spin ice have been shown to demonstrate surprising properties which could help in the development of applications of magnetricity, the magnetic equivalent of electricity. Researchers based at the London Centre for Nanotechnology, in collaboration with scientists from Oxford and Cambridge, found that, against expectations, the Third Law of Thermodynamics could be restored in thin films of the magnetic material spin ice.

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