Recyclable plastics that contain ring-shaped polymers may be a key to developing sustainable synthetic materials. Despite some promising advances, researchers said, a full understanding of how to processes ring polymers into practical materials remains elusive. In a new study, researchers identified a mechanism called "threading" that takes place when a polymer is stretched—a behavior not witnessed before. This new insight may lead to new processing methods for sustainable polymer materials.
* This article was originally published here
Friday, 17 May 2019
Early dengue virus infection could 'defuse' Zika virus
"We now know for sure that Zika virus infection during pregnancy can affect the unborn foetus in such a way that the child develops microcephaly and other severe symptoms," explains Prof Felix Drexler, a virologist at Charité who has been developing diagnostic tests for Zika and other viruses at the DZIF. Just a few years ago, pictures of affected newborns were cause for worldwide dismay and perplexity. "However, what we did not understand then was that high incidence of microcephaly seemed to occur particularly in northeastern Brazil," says Drexler. Why are expecting mothers in these regions at a higher risk of developing a severe Zika-associated disease than in other regions? The scientists consequently began to search for cofactors that have an influence on whether a Zika infection during pregnancy will develop fatal consequences or not.
* This article was originally published here
* This article was originally published here
Researchers develop novel framework for tracking developments in optical sensors
Plasmonics and photonics have been drawing attention in both academia and industry due to their use in an extensive range of applications, one of which includes optical sensing. The development of optical sensing technology not only contributes to the scientific research community as a versatile tool, but also offers substantial commercial value for smart city and Internet of Things (IOT) applications due to its energy efficiency, lightweight, small size and suitability for remote sensing. Reinforcing its significance, Scientific American identified plasmonic sensing as one of the top 10 emerging technologies of 2018.
* This article was originally published here
* This article was originally published here
Manipulating atoms one at a time with an electron beam
The ultimate degree of control for engineering would be the ability to create and manipulate materials at the most basic level, fabricating devices atom by atom with precise control.
* This article was originally published here
* This article was originally published here
First anticoagulant approved for preventing VTE recurrence in children
(HealthDay)—Fragmin (dalteparin sodium) injection has been granted the first approval for subcutaneous use in preventing recurrence of symptomatic venous thromboembolism (VTE) in children aged 1 month or older, the U.S. Food and Drug Administration announced.
* This article was originally published here
* This article was originally published here
Helping robots remember: Hyperdimensional computing theory could change the way AI works
The Houston Astros' José Altuve steps up to the plate on a 3-2 count, studies the pitcher and the situation, gets the go-ahead from third base, tracks the ball's release, swings ... and gets a single up the middle. Just another trip to the plate for the three-time American League batting champion.
* This article was originally published here
* This article was originally published here
Changes in subsistence hunting threaten local food security
Scientists with the Universidad San Francisco de Quito and WCS Ecuador Program publishing in the journal BioTropica say that subsistence hunting in Neotropical rain forests—the mainstay of local people as a source of protein and a direct connection to these ecosystems—is in jeopardy from a variety of factors.
* This article was originally published here
* This article was originally published here
Quinn on Nutrition: Carbs—how low can we go?
"Fruit has carbs? I had no idea," a stunned patient told me recently.
* This article was originally published here
* This article was originally published here
Bullet train champion in Japan will debut in 2030, now being tested
Testing for a train capable of 249mph (400 kph) speeds is to happen about twice a week at night. Bloomberg said ALFA-X is the world's fastest bullet train— well, for now, it is holding that title. Japan has also been working on a maglev train.
* This article was originally published here
* This article was originally published here
Eyes in the sky project will show power plant pollution marks
Air pollution is responsible for millions of deaths every year, worldwide. According to a State of Global Air report, air pollution is the fifth greatest global mortality risk.
* This article was originally published here
* This article was originally published here
Here's why your internet may be delivered by a drone someday soon
As the pilotless flying wing came in for a landing, winds suddenly picked up. Facebook Inc.'s Aquila drone—powered by the sun and wider than a Boeing 737 jetliner—struggled to adjust. Just before landing, part of the right wing broke off.
* This article was originally published here
* This article was originally published here
To win online debates, social networks worth a thousand words
Want to win an argument online? Bolstering your social network may be more helpful than rehearsing your rhetorical flourishes.
* This article was originally published here
* This article was originally published here
Artificial intelligence shines light on the dark web
Beneath the surface web, the public form of the internet you use daily to check email or read news articles, exists a concealed "dark web." Host to anonymous, password-protected sites, the dark web is where criminal marketplaces thrive in the advertising and selling of weapons, drugs, and trafficked persons. Law enforcement agencies work continuously to stop these activities, but the challenges they face in investigating and prosecuting the real-world people behind the users who post on these sites are tremendous.
* This article was originally published here
* This article was originally published here
Research reveals insulin-producing beta cells may change function in diabetes
A revolutionary new study using only materials derived from humans has revealed that insulin-producing beta cells can change their function in diabetes—and that this change may be reversible.
* This article was originally published here
* This article was originally published here
Boeing finishes software update for grounded airliner
Boeing says it has finished with its updates to the flight-control software implicated in two deadly crashes involving its 737 Max, moving a step closer to getting the plane back in the sky.
* This article was originally published here
* This article was originally published here
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