January 24, 2013

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Controlled Graphene Crumpling Used as Artificial Muscle Actuators

Crumpled Graphene

By developing a method to reversibly control the crumpling and unfolding of large-area graphene sheets, researchers at Duke University were able to demonstrate that crumpled graphene–polymer laminates can be used as artificial-muscle actuators. Durham, North Carolina – Duke University engineers are layering atom-thick lattices of carbon with polymers to create unique materials with a broad […]

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January 24, 2013

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NASA’s Image of the Day Shows Saturnian Moons Prometheus and Pan

Image of Saturnian Moons Prometheus and Pan

This NASA image of the day shows Saturn’s moons Prometheus and Pan through Saturn’s rings captured in visible violet light by the Cassini spacecraft narrow-angle camera. The ring-region Saturnian moons Prometheus and Pan are both caught “herding” their respective rings in this image. Through their gravitational disturbances of nearby ring particles, one moon maintains a […]

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January 24, 2013

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Hi-C Captures the Highest-Resolution Images Ever of the Sun’s Corona

The Highest Resolution Images Ever Taken of the Suns Atmosphere

Using a resolution five times higher than previous imagers, NASA’s High Resolution Coronal Imager (Hi-C) captured the highest-resolution images ever taken of the sun’s million-degree solar corona. The optics engineering expertise at the NASA’s Marshall Space Flight Center in Huntsville, Alabama, made it possible for a group of solar scientist to see into the sun’s […]

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January 23, 2013

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Astronomers Measure the Temperature of the Universe 7.2 Billion Years Ago

Radio Waves from a Bright Quasar Pass Through a Galaxy

Using the CSIRO Australia Telescope Compact Array, scientists led by Sebastien Muller have made the most precise measurement ever of how the universe has cooled down during its 13.77 billion year history. The researchers studied molecules in clouds of gas in a distant galaxy, so far away that its light has taken half the age […]

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January 23, 2013

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Scientists Create “Ghost-Illusion” Cloaking Device

The Schematic Composition and Equivalence of the Ghost Illusion Device

Using the space transformation theory and engineering capability of metamaterials, researchers from Southeast University in China, National University of Singapore and University of Birmingham have developed a functional “ghost” illusion device capable of creating wave-dynamic virtual ghost images of the original object’s position under the illumination of electromagnetic waves. This device is different than the […]

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January 23, 2013

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The Hormone Oxytocin Plays a Key Role in Maintaining Social Relations in Chimpanzees

The Hormone Oxytocin in Chimpanzees is Likely to Play a Key Role in Maintaining Social Relations

Scientists from the Max Planck Institute have discovered that cooperative relationships between chimpanzees are facilitated by an endocrinological mechanism involving the hormone oxytocin, even when these are between non-kin. Animals which maintain cooperative relationships show gains in longevity and offspring survival. However, little is known about the cognitive or hormonal mechanisms involved in cooperation. Researchers […]

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January 23, 2013

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Silicon Nanoparticles React with Water to Produce Hydrogen

Spherical Silicon Nanoparticles React with Water to Quickly Produce Hydrogen

Scientists at the University at Buffalo have created spherical silicon nanoparticles that react with water to form silicic acid and hydrogen, a potential source of energy for fuel cells. Buffalo, New York — Super-small particles of silicon react with water to produce hydrogen almost instantaneously, according to University at Buffalo researchers. In a series of […]

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January 23, 2013

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A View of Clouds of Cosmic Dust in the Region of Orion

A New Image From the APEX Telescope Shows Clouds of Cosmic Dust in the Region of Orion

This new image from the APEX telescope in Chile shows the region around the reflection nebula NGC 1999 in visible light, with the APEX observations overlaid in brilliant orange tones that seem to set the dark clouds on fire. A new image from the Atacama Pathfinder Experiment (APEX) telescope in Chile shows a beautiful view […]

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January 23, 2013

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UCLA Researchers Image Abnormal Brain Proteins in Retired NFL Players

A New Technique May Lead to Earlier Diagnosis of Brain Disorders in Athletes

Using a brain-imaging tool developed for assessing neurological changes associated with Alzheimer’s disease, researchers at UCLA have identified the abnormal tau proteins associated with sports-related concussions and mild traumatic brain injuries in five retired National Football League players. Sports-related concussions and mild traumatic brain injuries have grabbed headlines in recent months, as the long-term damage […]

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January 23, 2013

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Study Shows That TRPA1 is Essential in the Skin’s Response to UVA Light

The Skins Response to UVA Light

Researchers at Brown University discovered that human melaoncyte skin cells rely on an ion channel called TRPA1 to allow a flood of calcium ions, which signal the cell to begin making melanin, into the cells when they are exposed to UVA light. Providence, Rhode Island – Brown University – Last year, a team of researchers […]

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January 23, 2013

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Herschel Views Red Supergiant Star Betelgeuse

An Image of the Red Supergiant Star Betelgeuse

This new image from Herschel’s Photodetecting Array Camera and Spectrometer (PACS) shows the red supergiant star Betelgeuse, which is located in the Orion Constellation and appears to be on a collision course with a dusty “wall.” Multiple arcs are revealed around Betelgeuse, the nearest red supergiant star to Earth, in this new image from ESA’s […]

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January 22, 2013

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Artificial Enzyme Reveals Never Before Seen Structure

A Biological Catalyst Capable of Joining Two Segments of RNA

A newly published study details how researchers turned an ordinary protein into an artificial enzyme, a biological catalyst capable of joining two segments of RNA. Five years ago, a pair of researchers used a clever update on a technique called in vitro evolution – evolution in a test tube – to turn an ordinary protein […]

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