This artist's impression shows a view of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to the Solar System. The double star Alpha Centauri AB also appears in the image to the upper-right of Proxima itself. Proxima b is a little more massive than the Earth and orbits in the habitable zone around Proxima Centauri, where the temperature is suitable for liquid water to exist on its surface.
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The long hunted sterile neutrino cannot be traced

The IceCube result excludes a sterile neutrino with a mass difference (Δm^2) and oscillation with the conventional neutrinos (θ_{24}) values to the right of the red line. The IceCube exclusion rules outs the allowed region from other experiments which have 'hints' of a sterile neutrino; shown as the blue regions.Some of the most abundant particles in the universe are the so-called ghost particles, neutrinos, which travel through virtually anything on their journey through the universe. Researchers have identified three...

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Paraplegics regain some feeling, movement after using brain-machine interfaces

A computer monitor in the lab of Miguel Nicolelis, M.D., Ph.D., shows the brain activity of a monkey using a brain-machine interface.Eight people who have spent years paralyzed from spinal cord injuries have regained partial sensation and muscle control in their lower limbs after training with brain-controlled robotics, according to a...

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Researchers sequence genome of tobacco hornworm

This photo shows <i>Manduca sexta</i> eggs, larva, pupa and adult moth. A Kansas State University-led research team has sequenced the Manduca sexta genome.A Kansas State University-led international team has sequenced the genome of the tobacco hornworm - a caterpillar species used in many research laboratories for studies of insect biology.

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Nuclear puzzle may be clue to fifth force

A schematic description of the experimental anomaly that Tanedo and his colleagues have investigated. Excited beryllium-8 nuclei can decay into their ground state while emitting electron-positron pairs. The results of the experiment suggest the presence of a new force particle, here labelled as X.RIVERSIDE, Calif. (http://www.ucr.edu) -- In a new paper, University of California, Riverside theoretical physicist Flip Tanedo and his collaborators have made new progress towards unravelling...

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Growing up on an Amish farm protects children against asthma by reprogramming immune cells

By probing the differences between two farming communities--the Amish of Indiana and the Hutterites of South Dakota--an interdisciplinary team of researchers found that specific aspects of the Amish environment are...

Whales' ultrasonic hearing has surprisingly ancient history, fossilized ear shows

Sound is produced by <I>Echovenator</I>, which bounces off prey to create echoes. This illustration shows how these echoes are detected via conduction of vibrations through the mandible and received by the inner ear.All living toothed whales rely upon echoes of their own calls to navigate and hunt underwater, a skill that works best in conjunction with high-frequency hearing. Now, researchers reporting in...

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University of Washington paleontologists discover major T. rex fossil

Paleontologists prepare to remove a <em>Tyrannosaurus</em> rex skull from a fossil dig site in northern Montana and transport it to the Burke Museum at the University of Washington.Paleontologists with the Burke Museum of Natural History and Culture and the University of Washington have discovered a Tyrannosaurus rex, including a very complete skull. The find, which paleontologists estimate...

Stroke-like brain damage is reduced in mice injected with omega-3s

Researchers from Columbia University Medical Center (CUMC) found that omega-3 fatty acids reduced brain damage in a neonatal mouse model of stroke.

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Routinely measured lipids show contrasting associations with risk of coronary artery disease, diabetes

An analysis using genetics finds that increased low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and possibly triglyceride (TG) levels are associated with a lower risk of diabetes, and increased...

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Acetaminophen does not aggravate children's asthma

Contrary to earlier reports, giving acetaminophen (Tylenol, etc.) for pain and fever does not worsen asthma in young children with the condition, concludes a randomized trial in the August 18...

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Greenland sharks live for hundreds of years

Greenland sharks live for hundreds of years.While the more than 5 meter long Greenland shark is one of the world's largest sharks, it is also one of the least understood animals on our planet. The Greenland...

Neural stem cells in adult mice also vulnerable to Zika

This visual abstract shows the findings of Li et al., that peripheral ZIKV exposure in a mouse model can infect adult neural stem cells in the brain, leading to cell death and reduced proliferation. Thus, in addition to impacting fetal development, ZIKV infection may also have negative effects on the adult brain.Zika infection kills off neural stem cells in adult mice bred to be vulnerable to the virus, researchers at the Rockefeller University and the La Jolla Institute for Allergy and...

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Contagion in popular places: From Zika to political extremism

The alert is out and South Floridians are taking heed. With the Centers for Disease Control and Prevention issuing a warning for visitors and locals to avoid a neighborhood in...

Researchers report new Zika complication

Dr. John England, Professor and Chair of Neurology at LSU Health New Orleans School of Medicine, and colleagues in Honduras and Venezuela have reported a new neurological complication of infection...

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Methane-filled canyons line Titan's surface, study finds

A view of Titan's northern pole reveals many hydrocarbon lakes and seas. Titan is the only other celestial body, in addition to Earth, where erosion actively etches its surface.Liquid methane-filled canyons hundreds of meters deep with walls as steep as ski slopes etch the surface of Titan, researchers report in a new study. The new findings provide the...

Portable device produces biologic drugs on demand

For medics on the battlefield and doctors in remote or developing parts of the world, getting rapid access to the drugs needed to treat patients can be challenging.

Stanford scientists combine satellite data and machine learning to map poverty

Stanford researchers combine high-resolution satellite imagery with powerful machine learning algorithms to predict poverty in Nigeria, Uganda, Tanzania, Rwanda and Malawi.One of the biggest challenges in providing relief to people living in poverty is locating them. The availability of accurate and reliable information on the location of impoverished zones is...

Vaccine candidates protect against Zika virus in rhesus monkeys

The Pilot Bioproduction Facility at WRAIR has manufactured a batch of ZPIV vaccine to be used in clinical studies.The Walter Reed Army Institute of Research (WRAIR), in collaboration with the Beth Israel Deaconess Medical Center and Harvard Medical School, has completed a second round of preclinical studies on...

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Coffee drinking habits can be written in our DNA, study finds

Researchers have identified a gene that appears to curb coffee consumption.

St. Paul Island mammoths most accurately dated 'prehistoric' extinction ever

While the Minoan culture on Crete was just beginning, woolly mammoths were disappearing from St. Paul Island, Alaska, according to an international team of scientists who have dated this extinction...

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Melting ice sheet could release frozen Cold War-era waste

Climate change could remobilize abandoned hazardous waste thought to be buried forever beneath the Greenland Ice Sheet, new research finds.

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