Saturday 18 May 2019

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

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

Augmented reality affects people's behavior in the real world

As major technology firms race to roll out augmented reality products, Stanford researchers are learning how it affects people's behavior – in both the physical world and a digitally enhanced one.

* This article was originally published here

North carolina sues electronic cigarette maker JUUL

(HealthDay)—North Carolina is suing electronic-cigarette manufacturer JUUL for allegedly marketing its products to children and misleading the public about the health risks of the products. This lawsuit is the first filed by a state over JUUL's alleged marketing toward teens, CNN reported.

* This article was originally published here

Dirty data: Firms count environmental costs of digital planet

Technology is often touted as a solution to the world's environmental challenges, but it is also part of the problem: industry executives are facing rising pressure to clean up their energy and resource-intensive business.

* This article was originally published here

Air pollution hotspots in Europe

Big cities beset with gridlocked traffic, major regions producing coal, pockets of heavy industry encased by mountains—Europe's air pollution hotspots are clearly visible from space on most sunny weekdays.

* This article was originally published here

Researchers develop electric field-based dressing to help heal wound infections

Researchers at Indiana University School of Medicine have found a way to charge up the fight against bacterial infections using electricity.

* This article was originally published here

Wearable cooling and heating patch could serve as personal thermostat and save energy

Engineers at the University of California San Diego have developed a wearable patch that could provide personalized cooling and heating at home, work, or on the go. The soft, stretchy patch cools or warms a user's skin to a comfortable temperature and keeps it there as the ambient temperature changes. It is powered by a flexible, stretchable battery pack and can be embedded in clothing. Researchers say wearing it could help save energy on air conditioning and heating.

* 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

Dangerous pathogens use this sophisticated machinery to infect hosts

Gastric cancer, Q fever, Legionnaires' disease, whooping cough—though the infectious bacteria that cause these dangerous diseases are each different, they all utilize the same molecular machinery to infect human cells. Bacteria use this machinery, called a Type IV secretion system (T4SS), to inject toxic molecules into cells and also to spread genes for antibiotic resistance to fellow bacteria. Now, researchers at Caltech have revealed the 3-D molecular architecture of the T4SS from the human pathogen Legionella pneumophila with unprecedented details. This could in the future enable the development of precisely targeted antibiotics for the aforementioned diseases.

* 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

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

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

Cancer drug could be repurposed to provide treatment for brain aneurysms

An important class of drug used to treat cancer patients could be used to treat brain aneurysms, according to new research published this week.

* This article was originally published here

EU adopts powers to respond to cyberattacks

The European Union on Friday adopted powers to punish those outside the bloc who launch cyberattacks that cripple hospitals and banks, sway elections and steal company secrets or funds.

* This article was originally published here

When an aircraft landing system is made to enter the spoofing zone

Just what the airplane passenger who is always skittish does not want to hear: Radio navigation on planes for landing purposes is not secure; signals can be hacked.

* This article was originally published here

Polymers jump through hoops on pathway to sustainable materials

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

Fuel subsidies defy green trend amid rising climate alarm

Even as warnings of climate catastrophe and calls for greener economies grow ever louder, the world is still spending hundreds of billions of dollars every year to subsidise the fossil fuels that are causing the planet to overheat.

* This article was originally published here

Researchers imagine a cheaper, fairer marketplace for digital goods

E-commerce is sizzling. Last year, consumers spent more than $517 billion online with US merchants, up 15 percent from the year before, according to Internet Retailer.

* This article was originally published here

Essentials for growing tasty herbs on your windowsill

(HealthDay)—Whether you have a dedicated space in an outdoor garden or just a few buckets on a small patio, there's nothing quite like having your own herb garden for giving your cooking fresh flavor boosts.

* This article was originally published here

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