Monday, September 3, 2018

Science X Newsletter Week 35

Dear Reader ,

Here is your customized Science X Newsletter for week 35:

Long-sought decay of Higgs boson observed

Six years after its discovery, the Higgs boson has at last been observed decaying to fundamental particles known as bottom quarks. The finding, presented today at CERN1 by the ATLAS and CMS collaborations at the Large Hadron Collider (LHC), is consistent with the hypothesis that the all-pervading quantum field behind the Higgs boson also gives mass to the bottom quark. Both teams have submitted their results for publication today.

Goats prefer happy people

Goats can differentiate between human facial expressions and prefer to interact with happy people, according to a new study led by scientists at Queen Mary University of London.

Study finds sucralose produces previously unidentified metabolites

Sucralose, a widely used artificial sweetener sold under the trade name Splenda, is metabolized in the gut, producing at least two fat-soluble compounds, according to a recent study using rats. The finding differs from the studies used to garner regulatory approval for sucralose, which reported that the substance was not broken down in the body. The new study also found that sucralose itself was found in fatty tissues of the body.

Robotel: Japan hotel staffed by robot dinosaurs

The reception at the Henn na Hotel east of Tokyo is eerily quiet until customers approach the robot dinosaurs manning the front desk. Their sensors detect the motion and they bellow "Welcome."

Scientists identify a new kind of human brain cell

One of the most intriguing questions about the human brain is also one of the most difficult for neuroscientists to answer: What sets our brains apart from those of other animals?

A recipe for regenerating nerve fibers across complete spinal cord injury

Neuroscientists at UCLA, Harvard University and the Swiss Federal Institute of Technology have identified a three-pronged treatment that triggers axons—the tiny fibers that link our nerve cells and enable them to communicate—to regrow after complete spinal cord injury in rodents. Not only did the axons grow through scars, they could also transmit signals across the damaged tissue.

Aspen is making a comeback in and around Yellowstone National Park, because of predators

The reintroduction of wolves into Yellowstone National Park is tied to the recovery of aspen in areas around the park, according to a new study.

Diet has bigger impact on emotional well-being in women than in men

Women may need a more nutrient-rich diet to support a positive emotional well-being, according to new research from Binghamton University, State University at New York.

Study shows air pollution may be causing cognitive decline in people

A trio of researchers from Beijing Normal University, Yale University and Peking University has found a link between air pollution and human cognitive decline. In their paper published in Proceedings of the National Academy of Sciences, Xin Zhang, Xi Chen, and Xiaobo Zhang outline their study and what they found.

Cannabis extract helps reset brain function in psychosis

Research from King's College London has found that a single dose of the cannabis extract cannabidiol can help reduce brain function abnormalities seen in people with psychosis. Results from a new MRC-funded trial, published in JAMA Psychiatry, provide the first evidence of how cannabidiol acts in the brain to reduce psychotic symptoms.

Researchers achieve first ever acceleration of electrons in a proton-driven plasma wave

Early in the morning on Saturday, 26 May 2018, the AWAKE collaboration at CERN successfully accelerated electrons for the first time using a wakefield generated by protons zipping through a plasma. A paper describing this important result was published in the journal Nature today. The electrons were accelerated by a factor of around 100 over a length of 10 metres: they were externally injected into AWAKE at an energy of around 19 MeV (million electronvolts) and attained an energy of almost 2 GeV (billion electronvolts). Although still at a very early stage of development, the use of plasma wakefields could drastically reduce the sizes, and therefore the costs, of the accelerators needed to achieve the high-energy collisions that physicists use to probe the fundamental laws of nature. The first demonstration of electron acceleration in AWAKE comes only five years after CERN approved the project in 2013 and is an important first step towards realising this vision.

Changes in breakfast and dinner timings can reduce body fat

Modest changes to breakfast and dinner times can reduce body fat, a new pilot study in the Journal of Nutritional Sciences reports.

Geologists uncover new clues about largest mass extinction ever

A new study could help explain the driving force behind the largest mass extinction in the history of earth, known as the End-Permian Extinction.

Improving soil quality can slow global warming

Low-tech ways of improving soil quality on farms and rangelands worldwide could pull significant amounts of carbon out of the atmosphere and slow the pace of climate change, according to a new University of California, Berkeley, study.

Researchers unearth secret tunnels between the skull and the brain

Bone marrow, the spongy tissue inside most of our bones, produces red blood cells as well as immune cells that help fight off infections and heal injuries. According to a new study of mice and humans, tiny tunnels run from skull bone marrow to the lining of the brain and may provide a direct route for immune cells responding to injuries caused by stroke and other brain disorders. The study was funded in part by the National Institutes of Health and published in Nature Neuroscience.

Scientists identify protein that may have existed when life began

How did life arise on Earth? Rutgers researchers have found among the first and perhaps only hard evidence that simple protein catalysts—essential for cells, the building blocks of life, to function—may have existed when life began.

Injection wells can induce earthquakes miles away from the well

A study of earthquakes induced by injecting fluids deep underground has revealed surprising patterns, suggesting that current recommendations for hydraulic fracturing, wastewater disposal, and geothermal wells may need to be revised.

France's ban on bee-killing pesticides begins Saturday

A ban on five neonicotinoid pesticides enters into force in France on Saturday, placing the country at the forefront of a campaign against chemicals blamed for decimating critical populations of crop-pollinating bees.

Beluga whales and narwhals go through menopause

Scientists have discovered that beluga whales and narwhals go through the menopause—taking the total number of species known to experience this to five.

Scientists take big step toward finding non-addictive painkiller

With the support of the National Institute on Drug Abuse, scientists at Wake Forest School of Medicine have been working to find a safe, non-addictive pain killer to help fight the current opioid crisis in this country.


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