Earth

MINNEAPOLIS - People who participate in light to moderate physical activity, such as walking at least four hours a week or swimming two to three hours a week, may have less severe strokes than people who are physically inactive, according to a study published in the September 19, 2018, online issue of Neurology®, the medical journal of the American Academy of Neurology.

Starting in the spring of 2010, farmers from Sicily - the major pistachio production area of Italy - have been reporting a previously unknown disease on the trees. Characterised by cankers and declines, it sometimes leads to the collapse of the entire plant.

Calcium carbonate is found nearly everywhere, in sidewalk cement, wall paint, antacid tablets and deep underground. Engineers at Washington University in St. Louis have used a unique set of state-of-the-art imaging techniques to discover how calcium carbonate nanoparticles nucleate, which is important for those manufacturing the carbonate nanomaterials and controlling metal carbonation during CO2 sequestration.

In February 2018, Donald Trump signed into law new tax credits that reward oil companies for capturing carbon dioxide and preventing it from entering the atmosphere - either by burying the gas underground or by pumping it into wells to boost production. These tax credits, which have bipartisan support, are encouraging for those who believe that trapping CO2 from the fossil fuel industry - though no substitute for deploying cleaner energy sources - could help combat runaway climate change while society remains reliant on oil, gas and coal.

Air pollution is now an established risk factor for heart disease/stroke and respiratory disease, but its potential role in neurodegenerative diseases, such as dementia, isn't clear.

To try and explore this further, the researchers used carefully calculated estimates of air and noise pollution levels across Greater London to assess potential links with new dementia diagnoses.

AUGUSTA, Ga. (Sept. 18, 2018) - With age, expression of a small molecule that can silence others goes way up while a key signaling molecule that helps stem cells make healthy bone goes down, scientists report.

They have the first evidence in both mouse and human mesenchymal stem cells that this unhealthy shift happens, and that correcting it can result in healthier bone formation.

The small molecule is microRNA-141-3p and the signaling molecule is stromal-cell derived factor, or SDF-1, they report in the Journal of Gerontology: Biological Sciences.

You are in a strange neighbourhood, your cell phone's dead, and you desperately need to find the closest garage. A couple of people on the street chime in, each sending you in opposite directions. One person sounds like a local and speaks in a nonchalant manner, while the other uses a loud, confident voice but speaks with a strong accent. Who are you going to trust? A recently published study shows that unless they speak in a confident tone of voice, you're less likely to believe someone who speaks with an accent.

The remains of a buried pine forest at the foot of Mont Saint Genis in Southern France yield insightful information on a drastic climate change event. The pine tree stand initiated around 12,900 years ago during the relatively warm "Allerød" period, and continued growing into the cold snap of the "Younger Dryas" period.

Washington, DC - September 18, 2018 - An international team of researchers has successfully deployed a Zika virus vaccine to target and kill human glioblastoma brain cancer stem cells, which had been transplanted into mice. In a study published this week in mBio®, an open-access journal of the American Society for Microbiology, the team shows that a live, attenuated version of the Zika virus could form the basis of a new treatment option for this fatal brain cancer.

On Sunday, Sept. 16, Typhoon Mangkhut had made landfall in southern China and Hurricane signal #10 was still in force. NASA's Aqua satellite passed over the storm and captured an image that showed the storm after landfall.

A Red Alert, the most severe warning was issued by authorities in southern China.

At 5 a.m EDT (0900 UTC) on Sunday, Sept. 16, Mangkhut was centered near 21.6 north latitude and 113.6 east longitude, about 54 miles southwest of Hong Kong. Mangkhut was moving to the west-northwest at 17 knots and had maximum sustained winds 80 knots (92 mph/148 kph)