March 19, 2013

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Proof That the Olfactory System of Fruit Flies is Based on Self-Regulation of Odorant Receptors

Insect Odorant Receptors Regulate Their Own Sensitivity

For the first time, researchers at the Max Planck Institute provide experimental proof that the extremely sensitive olfactory system of fruit flies is based on self-regulation of odorant receptors. Highly developed antennae containing different types of olfactory receptors allow insects to use minute amounts of odors for orientation towards resources like food, oviposition sites or […]

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March 19, 2013

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Another Step Toward Lower Cost Alkaline Fuel Cells

Another Step Toward Low Temperature Lower Cost Alkaline Fuel Cells

In a newly published study, engineers synthesize a platinum-free catalyst for use in alkaline fuel cells, showing that silver-palladium multi-walled carbon nanotubes are almost as effective as platinum in low-temperature fuel cells. Researchers at Yale University have taken another step toward the development of low-temperature, lower-cost alkaline fuel cells, which are battery-like devices that convert […]

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March 19, 2013

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Curiosity Discovers More Hydration of Minerals Near Clay-Bearing Rocks

Curiosity Finds Evidence of Water Bearing Minerals in Rocks

Using infrared-imaging and an instrument that shoots neutrons into the ground to probe for hydrogen, scientists have found more evidence of water-bearing minerals in rocks on Mars. The Woodlands, Texas – NASA’s Mars rover Curiosity has seen evidence of water-bearing minerals in rocks near where it had already found clay minerals inside a drilled rock. […]

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March 19, 2013

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Transplanted Neural Cells from a Monkey’s Skin Develop into Mature Brain Cells

Neural Cells Derived from a Monkeys Skin Are Turned into Several Types of Mature Brain Cells

Researchers at the Waisman Center turned iPS cells from a monkey’s skin into neural progenitor cells and successfully transplant them into its own brain, providing proof of principle that personalized medicine may one day be able to treat diseases like Parkinson’s. For the first time, scientists have transplanted neural cells derived from a monkey’s skin […]

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March 19, 2013

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Kepler Supernova Reveals Clues About Cosmic Distance Markers

Supernova Reveals Clues About Crucial Cosmic Distance Markers

Using data from NASA’s Chandra X-ray Observatory, a newly published study examines the remnant of Kepler’s supernova. The scientists found that the supernova was triggered by an interaction between a white dwarf and a red giant star, not from the merger of two white dwarfs as was previously believed. A new study using data from […]

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March 18, 2013

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Lazarus Project Produces Cloned Embryos of an Extinct Frog

Researchers Create Cloned Embryos of an Extinct Frog

By using a laboratory technique known as somatic cell nuclear transfer, scientists have produce cloned embryos of the extinct frog Rheobatrachus silus. The genome of an extinct Australian frog has been revived and reactivated by a team of scientists using sophisticated cloning technology to implant a “dead” cell nucleus into a fresh egg from another […]

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March 18, 2013

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New Model Advances the Understanding of How Solar Wind Works

New Model Demonstrates Ion Cyclotron Resonant Heating in the Solar Wind

A newly published study uses a new model to demonstrate ion-cyclotron resonant heating in solar wind; representing a major advance in the understanding of how solar wind works. The Sun glows with a surface temperature of about 5500 degrees Celsius. Meanwhile its hot outer layer (the corona) has a temperature of over a million degrees, […]

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March 18, 2013

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Preparing for Pluto’s Undiscovered Satellites

Searching for the Undiscovered Satellites of Pluto

New computer simulations suggest that NASA’s New Horizons spacecraft will encounter many small satellites as it nears the binary planet Pluto-Charon in 2015. In 2015, NASA’s New Horizons spacecraft will encounter the binary planet Pluto-Charon and its coterie of small satellites. Discovered in June 2005, the satellites Nix and Hydra orbit Pluto-Charon at distances roughly […]

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March 18, 2013

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Lack of Sleep Leads to Eating and Weight Gain

Lack of Sleep Leads to Eating and Weight Gain

A new study from the University of Colorado Boulder suggests that a lack of sleep leads to eating and weight gain, finding that sleep-restricted people eat during their biological nighttime when internal physiology is not designed to be taking in food. Sleeping just five hours a night over a workweek and having unlimited access to […]

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March 18, 2013

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NASA’s Swift Discovers a Young Galactic Supernova Remnant

Swift Satellite Has Uncovered the Previously Unknown Remains of a Shattered Star

While using NASA’s Swift satellite to perform an X-ray survey of our galaxy’s central regions, a team of researchers discovered a young galactic supernova remnant, designated G306.3–0.9. NASA’s Swift satellite has uncovered the previously unknown remains of a shattered star. Designated G306.3–0.9 after the coordinates of its sky position, the new object ranks among the […]

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March 18, 2013

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Hubble Gazes on Ring Galaxy Zw II 28

Hubble Image of Ring Galaxy Zw II 28

Hubble takes a closer look at ring galaxy Zw II 28 in this newly released image. Galaxies can take many forms — elliptical blobs, swirling spiral arms, bulges, and disks are all known components of the wide range of galaxies we have observed using telescopes like the NASA/ESA Hubble Space Telescope. However, some of the […]

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March 18, 2013

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NASA Image of the Day Shows Light Echoes from V838 Mon

Light Echoes from V838 Mon

This NASA image of the day shows the star V838 Monocerotis (V838 Mon) and its light echo. Light Echoes from V838 Mon What caused this outburst of V838 Mon? For reasons unknown, star V838 Mon’s outer surface suddenly greatly expanded with the result that it became the brightest star in the entire Milky Way Galaxy […]

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March 15, 2013

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Researchers Grow Bioengineered Teeth

Researchers Grow Bioengineered Teeth

In a new study, scientists at King’s College were able to produce bioengineered teeth containing dentine, enamel and viable roots by using cells isolated from adult human gingival tissue combined with mouse embryonic tooth mesenchyme cells. New research published in the Journal of Dental Research describes an advance in efforts to develop a method to […]

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March 15, 2013

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14 Adult Patients in Long Term Functional Remission of HIV After Treatment

14 Adult Patients in Long Term Functional Remission of HIV

A newly published study reports on fourteen adult patients in long term functional remission of HIV seven years after being taken off early antiretroviral treatment. The work published today in PLoS Pathogens describes the control of HIV infection after early treatment of 14 patients who have been off therapy for 7.5 years (the cohort ANRS […]

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March 15, 2013

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C60 Detected in Planetary Nebula M1-11

Molecules of Carbon Detected in a Dying Star

Using data from several telescopes, researchers have detected C60 in the planetary nebula M1-11, bringing scientists closer to understanding the prevalence and formation of C60 in space. An international team of astronomers led by Masaaki Otsuka (Academia Sinica Institute of Astronomy and Astrophysics or ASIAA) has detected the C60 fullerene (molecules of carbon with 60 […]

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March 15, 2013

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Researchers Observed the Atmosphere of a Jupiter-Like Planet Beyond Our Solar System

A Detailed Examination of the Atmosphere of a Jupiter Like Planet Beyond Our Solar System

Using a high resolution imaging spectrograph, researchers have observed the atmosphere of a Jupiter like planet beyond our Solar System in unprecedented detail, uncovering the chemical fingerprints of specific molecules and revealing a cloudy atmosphere containing carbon monoxide and water vapor. A team of astronomers, including Quinn Konopacky of the Dunlap Institute for Astronomy & […]

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March 15, 2013

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Cassini Data Reveals Jupiter’s ‘Hot Spots’ Are Created by a Rossby Wave

Hot Spots in Jupiter Atmosphere Are Created by a Rossby Wave

Using images from NASA’s Cassini spacecraft, researchers closely tracked the shape of multiple “hot spots” over a period of time on Jupiter’s surface, finding evidence that these hot spots are created by a Rossby wave, a pattern also seen in Earth’s atmosphere and oceans. NASA postdoctoral fellow David Choi discusses his study of dark features […]

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March 14, 2013

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Controlling the Spin Polarization of Electrons in Three Dimensions

Scientists Discover How a Photon Beam Can Flip the Spin Polarization of Electrons

Scientists from the Berkeley Lab discovered that when topological insulators are hit with a laser beam, the spin polarization of the electrons they emit can be completely controlled in three dimensions. Plain-looking but inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. Even at room temperature, a single […]

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