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
Sunday, 19 May 2019
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
UN chief's call to 'save the Pacific to save the world'
UN Secretary-General Antonio Guterres said it was vital "to save the Pacific to save the world" as he wrapped up his brief South Pacific tour in Vanuatu on Saturday.
* This article was originally published here
* This article was originally published here
Ultra-clean fabrication platform produces nearly ideal 2-D transistors
Semiconductors, which are the basic building blocks of transistors, microprocessors, lasers, and LEDs, have driven advances in computing, memory, communications, and lighting technologies since the mid-20th century. Recently discovered two-dimensional materials, which feature many superlative properties, have the potential to advance these technologies, but creating 2-D devices with both good electrical contacts and stable performance has proved challenging.
* This article was originally published here
* This article was originally published here
Framework improves 'continual learning' for artificial intelligence
Researchers have developed a new framework for deep neural networks that allows artificial intelligence (AI) systems to better learn new tasks while "forgetting" less of what it has learned regarding previous tasks. The researchers have also demonstrated that using the framework to learn a new task can make the AI better at performing previous tasks, a phenomenon called backward transfer.
* This article was originally published here
* This article was originally published here
Study aims to improve capturing wind power for energy production
Scientists have released the first of several reports outlining major results that could help wind industry officials manage wind power facilities more efficiently and increase renewable energy production.
* This article was originally published here
* This article was originally published here
Thresholds found for unilateral optic nerve lesions in MS
(HealthDay)—A new anatomic threshold may be useful for identifying unilateral optic nerve lesions in patients with multiple sclerosis, according to a study published in the May issue of the Annals of Neurology.
* This article was originally published here
* This article was originally published here
Exploring people's perception of geometric features, personalities and emotions in videos with virtual humans
Researchers at Pontifical Catholic University of Rio Grande do Sul have recently carried out a study aimed at evaluating people's perceptions of geometric features, personalities and emotions presented in video sequences with virtual humans. Their study, outlined in a paper pre-published on arXiv, merges computer science tools with psychology research practices.
* This article was originally published here
* This article was originally published here
Just like toothpaste: Fluoride radically improves the stability of perovskite solar cells
Solar cells made of perovskite hold much promise for the future of solar energy. The material is cheap, easy to produce and almost as efficient as silicon, the material traditionally used in solar cells. However, perovskite degrades quickly, severely limiting its efficiency and stability over time. Researchers from Eindhoven University of Technology, energy research institute DIFFER, Peking University and University of Twente have discovered that adding a small amount of fluoride to the perovskite leaves a protective layer, increasing stability of the materials and the solar cells significantly. The solar cells retain 90 percent of their efficiency after 1000 hours operation at various extreme testing conditions. The findings are published today in the leading scientific journal Nature Energy.
* 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
Guidelines updated for TB screening, treatment in health care workers
(HealthDay)—Guidelines have been updated for screening and treatment for tuberculosis (TB) infection among health care personnel, according to research published in the May 17 issue of the U.S. Centers for Disease Control and Prevention Morbidity and Mortality Weekly Report.
* This article was originally published here
* This article was originally published here
Researchers find way to build potassium-oxygen batteries that last longer
Researchers have built a more efficient, more reliable potassium-oxygen battery, a step toward a potential solution for energy storage on the nation's power grid and longer-lasting batteries in cell phones and laptops.
* 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
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