October 14, 2014

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Study Finds Stimulant Use Increases by 30% During the School Year

Research Shows Stimulant Use Increases by 30 Percent During the School Year

New research from Yale, NYU and the University of Wisconsin-Madison shows that students are 30% more likely to take a stimulant medication during the school year than they are to take one during the summer. The authors found that school-year increases in stimulant use are largest for children from socioeconomically advantaged families. Because many children […]

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October 14, 2014

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Herschel Observations and Simulations of the Debris Disk Around Tau Ceti

Herschel Views the Debris Disc of Solar Analogue Tau Ceti

Astronomers from the Harvard-Smithsonian Center for Astrophysics studied the debris disc around τ Ceti, revealing that a Jupiter-mass planet could not be present in this system – making it less than ideal as a Solar system analog. Although thousands of exoplanets and hundreds of planetary systems (stars with multiple exoplanets) are now known, astronomers still […]

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October 13, 2014

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New Hybrid Materials Could Far Surpass the Current Solar Efficiency Limits

New Hybrid Materials Could Smash the Solar Efficiency Ceiling

Scientists from the University of Cambridge have developed a new method for transferring energy from organic to inorganic semiconductors that could boost the efficiency of widely used inorganic solar cells. Researchers have developed a new method for harvesting the energy carried by particles known as ‘dark’ spin-triplet excitons with close to 100% efficiency, clearing the […]

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October 13, 2014

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ESA Image of the Week: Butterfly Emerges from Stellar Demise of NGC 6302

Hubble Image of the Butterfly Nebula

This ESA image of the week shows the remains of dying star that was once about five times the mass of the Sun. Known as the Butterfly Nebula, it lies within the Milky Way galaxy roughly 3,800 light-years away in the constellation Scorpius. Many celestial objects are beautiful – swirling spiral galaxies or glittering clusters […]

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October 13, 2014

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Researchers Show Embryos Receive Parent-Specific Layers of Information

Study Reveals Embryos Receive Parent Specific Layers of Information

New research from San Francisco State University sheds light on the multilayered process of how a sperm and egg pass along information needed for successful reproduction, revealing that embryos receive parent-specific layers of information. The information that interprets the genetic code in a new embryo differs depending on whether it comes from the father or […]

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October 13, 2014

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Solid Nanoparticles Keep Their Internal Structure While Deforming Like a Liquid

New Research Shows Solid Nanoparticles Can Deform Like a Liquid

Using a combination of laboratory analysis and computer modeling, new research shows that nanoparticles keep their internal crystal structure while deforming like a liquid. A surprising phenomenon has been found in metal nanoparticles: They appear, from the outside, to be liquid droplets, wobbling and readily changing shape, while their interiors retain a perfectly stable crystal […]

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October 13, 2014

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Yale Biologists Describe DNA’s Security System

Surveillance of Nuclear Pore Complex Assembly

In a newly published study, Yale biologists and colleagues describe a key quality control mechanism that protects new cells from inheriting defective nuclear pore complexes. As befitting life’s blueprint, DNA is surrounded by an elaborate security system that assures crucial information is imparted without error. The security is provided by a double membrane perforated by […]

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October 13, 2014

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Lunar Reconnaissance Orbiter Finds Evidence of “Recent” Lunar Volcanism

NASA Finds Evidence of Young Volcanism on the Moon

New data from NASA’s Lunar Reconnaissance Orbiter reveals evidence of basaltic volcanism on the Moon occurring within the past 100 million years. NASA’s Lunar Reconnaissance Orbiter (LRO) has provided researchers strong evidence the moon’s volcanic activity slowed gradually instead of stopping abruptly a billion years ago. Scores of distinctive rock deposits observed by LRO are […]

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October 13, 2014

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New Hubble Image: Turquoise-Tinted Plumes in the LMC

Hubble Views Turquoise Tinted Plumes in the Large Magellanic Cloud

This newly released Hubble image shows part of the Tarantula Nebula, which is located in the Large Magellanic Cloud. The brightly glowing plumes seen in this image are reminiscent of an underwater scene, with turquoise-tinted currents and nebulous strands reaching out into the surroundings. However, this is no ocean. This image actually shows part of […]

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October 10, 2014

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Neutron Scattering Experiments Reveal New Quantum Properties of H2O and H2

Physicists Reveal New Quantum Properties of H2O and H2

New neutron scattering experiments reveal the existence of quantum selection rules in molecules and could open the door to new insights about the quantum properties of molecules by providing a unique testing ground for quantum theory. Neutron scattering experiments at the Institute Laue-Langevin (ILL) have uncovered the first known quantum selection rule in molecules, a […]

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October 10, 2014

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Previously Unknown Mechanism Repairs Brain after Stroke

Researchers Discover Mechanism that Repairs Brain after Stroke

Working with mice, researchers from Lund University and the Karolinska Institute have discovered a previously unknown mechanism through which the brain produces new nerve cells after a stroke. The findings have been published in the journal Science. A stroke is caused by a blood clot blocking a blood vessel in the brain, which leads to […]

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October 10, 2014

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New Method to Control Nanoparticles with Light and Magnets

Researchers Control Nanoparticles with Light and Magnets

A team of researchers has developed particles that can glow with color-coded light and be manipulated with magnets, improving the likelihood of tracking the position of the nanoparticles as they move within the body or inside a cell. A long-sought goal of creating particles that can emit a colorful fluorescent glow in a biological environment, […]

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