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Blog – Page 7611

Electric current is everywhere, from powering homes to controlling the plasma that fuels fusion reactions to possibly giving rise to vast cosmic magnetic fields. Now, scientists at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have found that electrical currents can form in ways not known before. The novel findings could give researchers greater ability to bring the fusion energy that drives the sun and stars to Earth.

“It’s very important to understand which processes produce electrical currents in plasma and which phenomena could interfere with them,” said Ian Ochs, graduate student in Princeton Universitys Program in Plasma Physics and lead author of a paper selected as a featured article in Physics of Plasmas. “They are the primary tool we use to control plasma in magnetic fusion research.”

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What’s the risk of different human populations to develop a disease? To find out, a team led by Université de Montréal professor Guillaume Lettre created an international consortium to study the blood of hundreds of thousands of people worldwide.

In one of the largest studies of its kind, published today in Cell, close to 750,000 participants from five major populations—European, African, Hispanic, East Asian and South Asian—were tested to see the effect of on characteristics in their .

These characteristics include such things as hemoglobin concentration and platelet counts.

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Artificial Intelligence (AI) is one of the most powerful technologies ever developed, but it’s not nearly as new as you might think. In fact, it’s undergone several evolutions since its inception in the 1950s. The first generation of AI was ‘descriptive analytics,’ which answers the question, “What happened?” The second, ‘diagnostic analytics,’ addresses, “Why did it happen?” The third and current generation is ‘predictive analytics,’ which answers the question, “Based on what has already happened, what could happen in the future?”

While predictive analytics can be very helpful and save time for data scientists, it is still fully dependent on historic data. Data scientists are therefore left helpless when faced with new, unknown scenarios. In order to have true “artificial intelligence,” we need machines that can “think” on their own, especially when faced with an unfamiliar situation. We need AI that can not just analyze the data it is shown, but express a “gut feeling” when something doesn’t add up. In short, we need AI that can mimic human intuition. Thankfully, we have it.

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This is an article from 2014, but it’s interesting — especially for why phishing emails are so lame. Money quote:

‘The answer is that the implausibility is a useful tool for the scammers. An entirely believable email would get millions of people falling for the bait – most of whom would catch on later when the scammers started requesting private banking details. This way, the fraudsters can avoid wasting their time on no-hopers, knowing that any replies they do receive are … See More.

Maybe your bank wants you to update your password; maybe a new Facebook friend wants to show you a funny web page. Maybe a Nigerian lawyer wants to pass on a legacy from a long-lost relative.

What all of these people are really after, of course, are your password, bank details and, ultimately money. Such phishing scams, says Microsoft, are costing the world as much as $5bn a year. For some reason, the UK is a favourite hunting ground for the phishers: here, says security firm Proofpoint, unsolicited email is almost three times more likely to contain a malicious link than in the US.

Continue reading “The psychology of phishing: why do we fall for terrible email scams?” | >

Defense advanced research projects agency — DARPA.

DARPA and the U.S. Air Force (USAF) today announced successful completion of captive carry tests of two variants of the Hypersonic Air-breathing Weapon Concept (HAWC) and are ready to proceed to first free-flight testing within the calendar year. The joint Agency and Service effort seeks to develop and demonstrate critical technologies to enable an effective and affordable air-launched hypersonic cruise missile.

HAWC performers Lockheed Martin and Raytheon Technologies have each tested advanced air vehicle configurations that promise to achieve and sustain efficient hypersonic flight. Their upcoming flight tests will focus on hydrocarbon scramjet-powered propulsion and thermal management techniques to enable prolonged hypersonic cruise, in addition to affordable system designs and manufacturing approaches.

“Completing the captive carry series of tests demonstrates both HAWC designs are ready for free flight,” said Andrew “Tippy” Knoedler, HAWC program manager in DARPA’s Tactical Technology Office. “These tests provide us a large measure of confidence – already well informed by years of simulation and wind tunnel work – that gives us faith the unique design path we embarked on will provide unmatched capability to U.S. forces.”

Continue reading “DARPA Completes Key Milestone on Hypersonics Air-breathing Weapons Program” | >

Ira Pastor, ideaXme life sciences ambassador, interviews Mr. Evgeni Borisov, CEO and Co-founder of Vimana Global Inc.

Ira Pastor Comments:

A flying car is a type of personal air vehicle, or “road able” aircraft, that provides door-to-door transportation by both ground and air, and was a popular theme in fantasy and science fiction stories throughout the early 20th century.

One of the first debuts of a flying car was that of Henry Ford, back in 1926, when he displayed an experimental single-seat airplane.

Continue reading “Vimana: From Mythical Flying Chariots to Space Age Vehicles” | >

Sleep has critical roles in health and regeneration, and one of those is clearing the brain of metabolic waste, according to researchers from the US and Denmark.

Now, as reported in the journal Nature Communications, they’ve discovered in mice that the time of day matters, suggesting the process is controlled by circadian rhythms.

“Our group has shown that just being awake or asleep drastically changes how well the brain can clear waste,” says lead author Lauren Hablitz from the University of Rochester Medical Centre.

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