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Does radiation from X-rays and CT scans really cause cancer?

July 1, 2015 12:00 am | by Loyola University Health System | Comments

In recent years, there has been widespread media coverage of studies purporting to show that radiation from X-rays, CT scans and other medical imaging causes cancer. But such studies have serious flaws, including their reliance on an unproven statistical model.

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Growing cell membranes are seen in this time lapse sequence (numbers correspond to minutes of duration). Courtesy of Michael Hardy, UC San Diego

Scientists create synthetic membranes that grow like living cells

June 30, 2015 11:34 am | by UC San Diego | Comments

Chemists and biologists have succeeded in designing and synthesizing an artificial cell membrane capable of sustaining continual growth, just like a living cell. Their achievement will allow scientists to more accurately replicate the behavior of living cell membranes, which until now have been modeled only by synthetic cell membranes without the ability to add new phospholipids.

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Congenital heart experts from Spectrum Health Helen DeVos Children’s Hospital have successfully integrated two common imaging techniques to produce a three-dimensional anatomic model of a patient’s heart. The 3-D model printing of patients’ hearts has bec

First 3-D heart printed using multiple imaging techniques

June 30, 2015 11:18 am | by Spectrum Health | Comments

Congenital heart experts have successfully integrated two common imaging techniques to produce a three-dimensional anatomic model of a patient’s heart. This is the first time the integration of computed tomography (CT) and three-dimensional transesophageal echocardiography (3DTEE) has successfully been used for printing a hybrid 3-D model of a patient’s heart.

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 A new technique pioneered at the U.S. Department of Energy's Brookhaven National Laboratory reveals atomic-scale changes during catalytic reactions in real time and under real operating conditions. A team of scientists used a newly developed reaction cha

X-Rays and electrons join forces to map catalytic reactions in real-time

June 30, 2015 11:03 am | by Brookhaven National Laboratory | Comments

A new technique reveals atomic-scale changes during catalytic reactions in real time and under real operating conditions. Scientists used a newly developed reaction chamber to combine x-ray absorption spectroscopy and electron microscopy for an unprecedented portrait of a common chemical reaction. The results demonstrate a powerful operando technique that may revolutionize research on catalysts, batteries, fuel cells...

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By focusing lasers onto silicon buried under a clear layer of silicon dioxide, the group has perfected a way to reliably blast tiny cavities in the solid silicon. This creates extremely high pressure around the explosion site and forms the new phases.

Making new materials with micro-explosions

June 30, 2015 10:49 am | by Australian National University | Comments

Scientists have made exotic new materials by creating laser-induced micro-explosions in silicon, the common computer chip material. The new technique could lead to the simple creation and manufacture of superconductors or high-efficiency solar cells and light sensors. By focusing lasers onto silicon buried under a clear layer of silicon dioxide, the group has perfected a way to reliably blast tiny cavities in the solid silicon.

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Computer simulations are layered over a picture of a time trial rider. Riders can save around six seconds if the team car maintains a gap of five meters, instead of the 10 meters laid down by the regulations. Courtesy of Eindhoven University of Technology

Aerodynamic effects can save tens of seconds in cycling time trials

June 30, 2015 10:35 am | by Eindhoven University of Technology | Comments

Will next Saturday’s Tour de France prologue get the winner it deserves? New aerodynamic research shows that riders in a time trial can save vital seconds by riding closer to the following team car. Over a short distance like the prologue of the Tour de France, that can save as much as six seconds: enough to make the difference between winning and losing. On longer events like world championships, the effect can add up to tens of seconds.

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Rice University has installed microscopes that will allow researchers to peer deeper than ever into the fabric of the universe. The Titan Themis scanning/transmission electron microscope, one of the most powerful in the United States, will enable scientis

New electron microscopes will capture images at subnanometer resolution

June 30, 2015 10:15 am | by Rice University | Comments

Rice University has installed microscopes that will allow researchers to peer deeper than ever into the fabric of the universe. The Titan Themis scanning/transmission electron microscope, one of the most powerful in the United States, will enable scientists from Rice as well as academic and industrial partners to view and analyze materials smaller than a nanometer — a billionth of a meter — with startling clarity.

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New method of quantum entanglement vastly increases how much information can be carried in a photon

June 30, 2015 8:51 am | by UCLA | Comments

A team of researchers led by UCLA electrical engineers has demonstrated a new way to harness light particles, or photons, that are connected to each other and act in unison no matter how far apart they are  — a phenomenon known as quantum entanglement.

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Graphene flexes its electronic muscles

June 30, 2015 8:47 am | by Mike Williams, Rice University | Comments

Flexing graphene may be the most basic way to control its electrical properties, according to calculations by theoretical physicists at Rice University and in Russia.

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Startup brings nonstick coating to consumer goods packaging

June 30, 2015 8:44 am | by Rob Matheson, MIT News Office | Comments

The days of wasting condiments — and other products — that stick stubbornly to the sides of their bottles may be gone, thanks to MIT spinout LiquiGlide, which has licensed its nonstick coating to a major consumer-goods company.  

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New nanogenerator harvests power from rolling tires

June 30, 2015 8:40 am | by University of Wisconsin-Madison | Comments

A group of University of Wisconsin-Madison engineers and a collaborator from China have developed a nanogenerator that harvests energy from a car's rolling tire friction.

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Physicists shatter stubborn mystery of how glass forms

June 30, 2015 8:37 am | by University of Waterloo | Comments

A physicist at the University of Waterloo is among a team of scientists who have described how glasses form at the molecular level and provided a possible solution to a problem that has stumped scientists for decades.

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Sandia's Z machine receives funding aimed at fusion energy

June 30, 2015 8:35 am | by DOE, Sandia National Laboratories | Comments

A two-year, $3.8 million award has been received by Sandia National Laboratories and the University of Rochester's Laboratory for Laser Energetics (LLE) to hasten the day of low-cost, high-yield fusion reactions for energy purposes.

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A deep, dark mystery

June 30, 2015 8:31 am | by UC Santa Barbara | Comments

UC Santa Barbara geologist Jim Boles has found evidence of helium leakage from the Earth's mantle along a 30-mile stretch of the Newport-Inglewood Fault Zone in the Los Angeles Basin.

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Model of 3-D building photographed from inside. Courtesy of Johan Gunséus

Sweden starts a project of 3D printing houses

June 29, 2015 11:42 am | by Umeå universitet | Comments

In a collaborative project worth SEK 35 million, researchers and external partners are together developing a technology to make full-scale 3-D prints of cellulose based material. It is not a matter of small prints—the objective is to make houses. One of the sub-goals is to produce cellulose-based materials for full-scale 3D printing, which can be anything from printing weather-stripping and doors to walls and, in the end, complete houses.

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