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Sunday November 29th 2015

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Soil pulled from deep under Oregon’s unglaciated Coast Range unveils frosty past climate

Lush greenery rich in Douglas fir and hemlock trees covers the Triangle Lake valley of the Oregon Coast Range. Today, however, geologists are more focused on sediment samples dating back 50,000 years and which show the region, not covered by glaciers in the last ice age, was frost-covered and endured erosion rates must higher than those seen today.

Posted on 27 November 2015 | 5:00 am

Synapse discovery could lead to new treatments for Alzheimer’s disease

A team of researchers led by UNSW Australia scientists has discovered how connections between brain cells are destroyed in the early stages of Alzheimer’s disease — work that opens up a new avenue for research on possible treatments for the degenerative brain condition.

Posted on 27 November 2015 | 5:00 am

A common mechanism for human and bird sound production

When birds and humans sing it sounds completely different, but now new research reported in the journal Nature Communication shows that the very same physical mechanisms are at play when a bird sings and a human speaks.

Posted on 27 November 2015 | 5:00 am

Earth’s first ecosystems were more complex than previously thought, study finds

Computer simulations have allowed scientists to work out how a puzzling 555-million-year-old organism with no known modern relatives fed, revealing that some of the first large, complex organisms on Earth formed ecosystems that were much more complex than previously thought.

Posted on 27 November 2015 | 5:00 am

Mystery of how snakes lost their legs solved by reptile fossil

Fresh analysis of a reptile fossil is helping scientists solve an evolutionary puzzle — how snakes lost their limbs.

Posted on 27 November 2015 | 5:00 am

Scientists get first glimpse of black hole eating star, ejecting high-speed flare

An international team of astrophysicists has for the first time witnessed a star being swallowed by a black hole and ejecting a flare of matter moving at nearly the speed of light

Posted on 26 November 2015 | 5:00 am

More than 1 in 4 older Indians on low and middling incomes have midriff bulge

More than one in four middle-aged Indians on low and middling incomes now has an unhealthy midriff bulge, with women most likely to carry a spare tire, reveal the results of a nationally representative survey, published in the online journal BMJ Open.

Posted on 26 November 2015 | 5:00 am

A ‘bottom up’ approach to managing climate change

In advance of next week’s United Nations climate meeting in Paris, Allen Fawcett et al. highlight the Intended Nationally Determined Contributions, in which various countries have put forward their commitments toward emissions reductions.

Posted on 26 November 2015 | 5:00 am

Study shows white matter damage caused by ‘skunk-like’ cannabis

Smoking high potency ‘skunk-like’ cannabis can damage a crucial part of the brain responsible for communication between the two brain hemispheres, according to a new study by scientists from King’s College London and Sapienza University of Rome.

Posted on 26 November 2015 | 5:00 am

Recommended activity levels not achieved by obese children and those with liver disease

In a new study published today in the journal Nutrients, research from the University of Surrey and the Children’s Liver Disease Foundation has found that both obese children and those with non-alcoholic fatty liver disease are not meeting the UK recommendations for a variety of vitamins and minerals.

Posted on 26 November 2015 | 5:00 am

Science News Headlines – Yahoo News

Get the latest Science news headlines from Yahoo News. Find breaking Science news, including analysis and opinion on top Science stories.

Progesterone May Not Lower Risk of Repeated Miscarriage

Pregnant women who have had several miscarriages in the past are sometimes given progesterone supplements, in hopes of avoiding another miscarriage. In the study, researchers found no difference in birth rates between women who received progesterone treatments during their first trimester of pregnancy and those who received a placebo at that time. Among the women given the supplements, 65.8 percent maintained their pregnancy, compared to 63.3 percent of those given the placebo.

Posted on 28 November 2015 | 10:01 pm

Another American Ebola Survivor Had Eye Problems

Ebola survivor Dr. Ian Crozier wasn’t the only American to experience eye problems following the disease — a new report describes eye problems in another American doctor who lived through the disease. Dr. Richard Sacra, who works for the Christian mission organization SIM USA, contracted Ebola last year while caring for pregnant women in Liberia during the rise of the Ebola outbreak there.

Posted on 28 November 2015 | 9:55 pm

Why Menstruation Remains a Medical Mystery

Humans are among the few species in which the process occurs, and although researchers have ideas about why menstruation happens, there are many unknowns. But a better understanding of the hows and whys of menstruation is needed, researchers say. “There’s so much we don’t understand about why this repeated event of shedding and repair happens,” said Dr. Hilary Critchley, an ob-gyn and reproductive health researcher at the University of Edinburgh in Scotland.

Posted on 28 November 2015 | 9:54 pm

Debris from U.S. rocket recovered off coast of southwest England

Handout photograph showing a piece of metal recovered from the sea off the Isles of ScillyDebris from a U.S. rocket, most likely the doomed SpaceX Falcon 9, has been recovered near the Isles of Scilly, off the coast of southwest England, the UK coastguard has said on Friday. It was covered in barnacles and was initially mistaken for a dead whale. Britain's Maritime and Coastguard Agency said in a statement that a piece of metal alloy was recovered with the help of a local boatman.

Posted on 27 November 2015 | 3:18 pm

Spaceflight Is Entering a New Golden Age, Says Blue Origin Founder Jeff Bezos

Spaceflight Is Entering a New Golden Age, Says Blue Origin Founder Jeff BezosEarly Monday (Nov. 23), the private spaceflight company Blue Origin made a major stride in the pursuit of fully reusable rockets, when it launched an uncrewed vehicle into space and then soft-landed the rocket booster on the ground. "It was one of the greatest moments of my life," said Jeff Bezos, Blue Origin's founder, speaking about the landing in a press briefing yesterday (Nov. 24). "And my teammates here at Blue Origin, I could see felt the same way.

Posted on 26 November 2015 | 12:40 pm

Turkey and Football: How Astronauts Celebrate Thanksgiving in Space

Turkey and Football: How Astronauts Celebrate Thanksgiving in SpaceThanksgiving in space will be a lot like the holiday down here on the ground — minus the gravity, of course. Like most Americans, NASA astronauts Scott Kelly and Kjell Lindgren have Thanksgiving (Nov. 26) off, and they'll spend the day aboard the International Space Station (ISS) watching football and enjoying a turkey-centric feast, agency officials said. Kelly and Lindgren gave viewers a look at that feast in a special Thanksgiving video this week, breaking out bags of smoked turkey, rehydratable corn, candied yams and potatoes au gratin.

Posted on 26 November 2015 | 12:40 pm

Scientists seek to harvest electricity from algae in green-energy effort

By Chris Arsenault TORONTO (Thomson Reuters Foundation) – Scientists are making progress in harnessing electricity from algae in what could be a breakthrough in green-energy technology to combat climate change, although mass-market applications are years away, new research suggests. The technology utilizes the process of photosynthesis by algae, one of the most common microorganisms on earth, according to a Concordia University engineering professor leading the research. Algae naturally creates electrons during photosynthesis, and metal probes stuck into the plant can capture that energy and transfer it into electricity for batteries, he said on Wednesday.

Posted on 26 November 2015 | 8:31 am

Drug driving suit mimics taking the wheel stoned

By Jim Drury A simulation suit that mimics the effects on wearer’s reactions of taking illegal substances has been developed by scientists to show young drivers the dangers of getting behind the wheel while intoxicated by drugs. A kinetic device in the suit’s gloves produces a tremor akin to that caused by some illicit drugs. Random flashing lights in the goggles’ peripheral area, allied to hallucinogenic-type sounds in the headphones, combine to disorientate drivers.

Posted on 25 November 2015 | 4:15 pm

U.S. Air Force official sees issues with space launch priorities

By Andrea Shalal WASHINGTON (Reuters) – The United States could struggle to promote competition in its space launch program while also maintaining two independent ways to launch satellites and ending U.S. reliance on Russian rocket engines, a top U.S. Air Force official said on Tuesday. “I think the space launch situation is serious for the country,” LaPlante said, underscoring the complexity of the challenges facing the industry. ULA, the monopoly provider of such launches since its creation in 2006, said it was unable to submit a bid in compliance with the competition’s rules because of how the contest was structured, and because it lacked Russian-built RD-180 engines for its Atlas 5 rocket.

Posted on 25 November 2015 | 5:57 am

Better batteries to beat global warming: A race against time

FILE - In this April 30, 2015 file photo, Tesla Motors Inc. CEO Elon Musk unveils the company’s newest product, Powerpack in Hawthorne, Calif. Musk is trying to steer his electric car company's battery technology into homes and businesses as part of an elaborate plan to reshape the power grid with millions of small power plants made of solar panels on roofs and batteries in garages. One of the key technologies that could help wean the globe off fossil fuel is probably at your fingertips or in your pocket right now: the battery. If batteries can get better, cheaper and store more power safely, then electric cars and solar- or wind- powered homes become more viable _ even on cloudy days or when the wind isn’t blowing. These types of technological solutions will be one of the more hopeful aspects of United Nations climate talks that begin next week in Paris. (AP Photo/Ringo H.W. Chiu, File)WASHINGTON (AP) — One of the key technologies that could help wean the globe off fossil fuel is probably at your fingertips or in your pocket right now: the battery.

Posted on 24 November 2015 | 11:59 pm