April 27, 2015

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Modern Humans Triggered the Demise of Neanderthals

Scientists Decipher the Demise of Neandertals

A newly published study reveals that Homo sapiens belonging to the Protoaurignacian culture may have been the ultimate cause for the demise of Neanderthals. Researchers from the University of Bologna, Italy, and the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, analyzed two deciduous teeth from the prehistoric sites of Grotta di Fumane and […]

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April 27, 2015

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Nearby Star-Forming Galaxies Can Form Massive Black Holes

Black Hole Hunters Tackle a Cosmic Conundrum

New research shows that a supermassive black hole exists in a place where it isn’t supposed to be, opening a new door to understanding what things were like as the universe evolved and grew in the depths of time. Supermassive black holes, the mysterious monsters that sit at the center of galaxies—the Milky Way included—were […]

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April 27, 2015

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Targeting Brain Metastases with Stem Cell Therapy

Targeting Breast to Brain Metastatic Tumor

Researchers have developed an in vivo imageable breast-to-brain metastasis mouse model. Using real time in vivo imaging and subsequent composite fluorescence imaging, they show a widespread distribution of micro- and macro-metastasis in different stages of metastatic progression. Harvard Stem Cell Institute (HSCI) researchers at Massachusetts General Hospital (MGH) have developed an “imageable” mouse model of […]

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April 27, 2015

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Neuroscientists Show How Brain Cells Control the Flood of Information

Controlling the Thalamus with Dynamic Synapses

Neuroscientists from Brown University show how cells in the brain’s cortex can either stifle or enhance sensory information incoming from the thalamus, thereby allowing it to focus on just some of the many sensory inputs it might choose to consider. Providence, Rhode Island (Brown University) — We consider only some of the sights, sounds, and […]

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April 24, 2015

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The First Complete View of the Yellowstone Magmatic System

Newly Discovered Yellowstone Reservoir of Partly Molten Rock is Four Times Bigger than Shallower Chamber

A newly published study provides the first complete view of the Yellowstone magmatic system from the mantle plume to the upper crust, revealing a gigantic magma reservoir beneath the previously known magma chamber. University of Utah seismologists discovered and made images of a reservoir of hot, partly molten rock 12 to 28 miles beneath the […]

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April 24, 2015

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FDA Approved Tapeworm Drug Shows Promise Against MRSA

Tapeworm Medication Shows Promise Against MRSA

New research from Brown University and Rhode Island Hospital reveal that a common tapeworm drug (which is already approved for use in humans) effectively treated MRSA superbugs in lab cultures and in infected nematode worms. Providence, Rhode Island (Brown University) — A new study provides evidence from lab experiments that a drug already used in […]

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April 24, 2015

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Implantable Device Allows Doctors to Identify the Best Chemotherapy Agents

Implantable Device Tests Cancer Drugs in Patients

A team of engineers has developed a new implantable device that will allow doctors to test the effectiveness of cancer drugs and to identify drugs that work best for each patient prior to starting systemic administration of chemotherapy. More than 100 drugs have been approved to treat cancer, but predicting which ones will help a […]

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April 24, 2015

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Astronomers Discover 11 Runaway Elliptical Galaxies

Astronomers Find Runaway Galaxies

Astronomers from the Harvard-Smithsonian Center for Astrophysics and Moscow State University have discovered 11 isolated compact elliptical galaxies that have been flung out of their homes to wander the void of intergalactic space. Cambridge, Massachusetts – We know of about two dozen runaway stars, and have even found one runaway star cluster escaping its galaxy […]

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April 23, 2015

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Scientists Provide Novel Tools to Study Enzyme Catalysis

Controlling Enzyme Reactions at Atomic Level

A newly published study details how scientists used a chemical probe to dissect individual catalytic steps of enoyl-thioester reductases, validating an active site tyrosine as the cryptic proton donor and explaining how it had eluded definitive identification. Enzymes are naturally existing biocatalysts of great potential for application in sustainable chemistry. Yet, controlling enzyme reactions at […]

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April 23, 2015

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Dose-Dependent Relationship Between Sugar Beverages and Heart Disease Risk

Sugary Drinks Boost Heart Disease Risk

New research from the University of California Davis is the first to demonstrate a direct, dose-dependent relationship between the amount of added sugar consumed in sweetened beverages and increases in specific risk factors for cardiovascular disease. Beverages sweetened with low, medium and high amounts of high-fructose corn syrup significantly increase risk factors for cardiovascular disease, […]

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April 23, 2015

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Fewer Doses of Prophylaxis Provides Near-Optimal Protection Against RSV

Fewer Doses of Prophylaxis Provides Near-Optimal Protection

Researchers from Yale and the National Institutes of Health and the Agency for Healthcare Research and Quality reveal that fewer doses of the antibody for Respiratory Syncytial Virus can be given to children and still offer near-optimal protection. Respiratory Syncytial Virus, or RSV, is the most common cause of bronchiolitis and pneumonia in U.S. children […]

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April 23, 2015

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Celestial Fireworks – Official Image for Hubble’s 25th Anniversary

Hubble Image of the Day Westerlund 2

This Hubble image of star cluster Westerlund 2 was chosen as Hubble’s 25th anniversary image. The brilliant tapestry of young stars flaring to life resemble a glittering fireworks display in the 25th anniversary NASA Hubble Space Telescope image, released to commemorate a quarter century of exploring the solar system and beyond since its launch on […]

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April 22, 2015

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The First Stars of the Universe Were as Bright as 100 Million Suns

The First Stars Were as Bright as a Hundred Million Suns

A newly published study analyzes the time evolution of the luminosity of a cluster of Population III protostars formed in the early universe, revealing that the first stars were as luminous as 100 million of our Suns. The first stars in the Universe were born several hundred million years after the Big Bang, ending a […]

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April 22, 2015

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51 Pegasi b: The First Exoplanet Directly Detected Spectroscopically in Visible Light

First-Ever Direct Detection of the Spectrum of Visible Light from an Exoplanet

Using the HARPS planet-hunting machine, astronomers have made the first-ever direct detection of the spectrum of visible light reflected off an exoplanet. The new observations also revealed new properties of this famous object, the first exoplanet ever discovered around a normal star: 51 Pegasi b. The result promises an exciting future for this technique, particularly […]

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April 22, 2015

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Artificial Photosynthesis System Poses Win/Win for the Environment

Researchers Perform Solar-powered Green Chemistry with Captured CO2

Researchers from the Berkeley Lab and UC Berkeley have created an artificial photosynthesis system that synthesizes the combination of carbon dioxide and water into acetate, the most common building block today for biosynthesis. A potentially game-changing breakthrough in artificial photosynthesis has been achieved with the development of a system that can capture carbon dioxide emissions […]

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April 22, 2015

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Yale Engineers Design Metallic Glass Nanostructures of Tunable Shape

New Research Details Metallic Glass Nanostructures of Tunable Shape

Engineers from Yale University have developed a unique method for designing metallic glass nanostructures of tunable shape and composition, enabling the fabrication of an array of new materials. Metallic glass, a class of materials that offers both pliability and strength, is poised for a friendly takeover of the chemical landscape. Yale University engineers have found […]

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April 22, 2015

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NASA’s NExSS Coalition to Search for Life on Distant Worlds

NExSS Coalition to Search for Life on Distant Planets

NASA’s Nexus for Exoplanet System Science, or “NExSS”, coalition brings experts from a variety of scientific fields together for an unprecedented initiative dedicated to the search for life on planets outside our solar system. The Nexus for Exoplanet System Science, or “NExSS”, hopes to better understand the various components of an exoplanet, as well as […]

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