Thanks to advances in medicine, bone marrow transplants are no longer the last resorts they one were. Every year, thousands of marrow transplants are performed, a common treatment for ailments from bone marrow disease to leukemia. But because they first require a patient undergo radiation to kill off any existing bone… Read more…
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This Synthetic Bone Implant Could Replace Painful Marrow Transplants
Conventional wisdom: If you eat a lot of salt, you will get thirsty to dilute the sodium level in your blood. The excess salt will be excreted in your urine. But a new study of Russian cosmonauts is challenging this long-held belief. When the cosmonauts ate more salt, the became less thirsty. And their appetite increased – they had to eat 25 percent more to maintain their weight. From the New York Times : The crew members were increasing production of glucocorticoid hormones, which influence both metabolism and immune function. To get further insight, [Dr. Jens Titze, now a kidney specialist at Vanderbilt University Medical Center and the Interdisciplinary Center for Clinical Research in Erlangen, Germany] began a study of mice in the laboratory. Sure enough, the more salt he added to the animals’ diet, the less water they drank. And he saw why. The animals were getting water — but not by drinking it. The increased levels of glucocorticoid hormones broke down fat and muscle in their own bodies. This freed up water for the body to use. But that process requires energy, Dr. Titze also found, which is why the mice ate 25 percent more food on a high-salt diet. The hormones also may be a cause of the strange long-term fluctuations in urine volume. Scientists knew that a starving body will burn its own fat and muscle for sustenance. But the realization that something similar happens on a salty diet has come as a revelation. https://youtu.be/aJEzl31zL-I
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Scientists stunned by new findings about salt’s effects on body
Dragon skin ice sounds like something you’d encounter beyond The Wall in the Game of Thrones fantasy realm. But good news nerds, you can find this magical-sounding stuff right here on Earth—though you’ve gotta be lucky, and willing to travel to some of the most hostile environments on the planet. Like the team of… Read more…
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Antarctica’s ‘Dragon Skin’ Ice Is Incredible
New submitter troublemaker_23 quotes a report from ITWire: Only 36% of software engineers in India can write compilable code based on measurements by an automated tool that is used across the world, the Indian skills assessment company Aspiring Minds says in a report. The report is based on a sample of 36, 800 from more than 500 colleges across India. Aspiring Minds said it used the automated tool Automata which is a 60-minute test taken in a compiler integrated environment and rates candidates on programming ability, programming practices, run-time complexity and test case coverage. It uses advanced artificial intelligence technology to automatically grade programming skills. “We find that out of the two problems given per candidate, only 14% engineers are able to write compilable codes for both and only 22% write compilable code for exactly one problem, ” the study said. It further found that of the test subjects only 14.67% were employable by an IT services company. When it came to writing fully functional code using the best practices for efficiency and writing, only 2.21% of the engineers studied made the grade. Read more of this story at Slashdot.
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Only 36 Percent of Indian Engineers Can Write Compilable Code, Says Study
Traffic. We all hate it, but what can honestly be done to significantly reduce it? Well, according to an experiment conducted by the university of Illinois, simply introducing a few self-driving cars to roads could be the answer. Conducting experiments in Tucson, Arizona the team discovered that even adding a single autonomous vehicle to the roads can massively reduce traffic. They programmed a self-driving car to loop a track continuously and then added 20 other human-driven cars to the mix. While humans somehow naturally create stop-and-go traffic even without lane changes or other disruptions, thanks to the robotic racer, both traffic and fuel consumption were reduced by 40 percent. This isn’t the first example of modern tech helping to reduce congestion. With fixed traffic sensors widely swapped for navigation systems using GPS data, Professor Daniel B. Work believes that automated cars could be the next step — replacing the traffic-reducing variable speed limits. The next stage of the experiment is to test autonomous cars in situations where both human and AI drivers have to change lanes. From our experience with freeways, we already feel bad for the robot cars. Still, this isn’t the only way that drivers can use automation to reduce traffic. With the margin of human error being so high, the same study suggests that even existing tech like adaptive cruise control has the power to greatly reduce the amount of traffic on our roads. With many people understandably wary at the prospect of roads completely ruled by automated cars, the idea of mixing a few with regular vehicles seems like a good way to pilot the risky tech. Via: Phys.org Source: Cornell University Library
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A single autonomous car could greatly reduce man-made traffic
SEATTLE—At its Build developer conference, Microsoft has announced that Windows 10 has now passed 500 million monthly active devices. Little over a year ago, the company said that the operating system had reached 300 million systems . As the operating system nears the end of its second full year on the market, it’s clear that it’s going to fall a long way short of the company’s original estimates. At launch, the ambition was to reach 1 billion devices over the first two to three years of availability, but this estimate assumed that Windows 10 Mobile would be a going concern, selling something of the order of 50 million or more devices a year. Read 3 remaining paragraphs | Comments
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Windows 10 hits 500 million devices, growing by two-thirds in a year
Astronomy needs expensive things, and lots of them. You might remember that astronomers almost literally turned the Earth into a telescope just to see a black hole, by combining lots of existing radio telescope dishes. Read more…
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An Old Satellite Dish Found on Google Maps Is Becoming West Africa’s First Radio Telescope
Anyone with a color printer knows that selling replacement ink cartridges is the quickest way to become a millionaire. But what if your printer never needed a single drop of ink to produce color images at impossibly high resolutions? A new laser printer can already do that by etching microscopic patterns onto sheets… Read more…
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This Laser Printer Creates High-Res Color Images Without a Single Drop of Ink
Scientists have been trying to replace retinas in otherwise healthy eyes to help people suffering from diseases like retinitis pigmentosa. Unfortunately, earlier efforts were only able to use rigid, hard materials , which are very different from the natural retina. A researcher at Oxford University, however, has created a synthetic retina made of biological materials to better match natural human tissues. The study, titled “Light-Patterned Current Generation in a Droplet Bilayer Array” was published this April in Scientific Reports . Your retina sits at the back of your eye collecting light and converting them to electrical signals for your brain. The research, led by 24-year-old Vanessa Restrepo-Schild, uses a retina made of soft water droplets called hydrogels and biological cell membrane proteins. These cells act like pixels to detect light and create a gray scale image. It can then generate electrical signals to stimulate the neurons at the back of your eye just like a natural retina does. The artificial tissues don’t contain anything other than natural, biodegradable materials, making it less likely that recipients’ bodies will reject the implant. It’s also far less invasive than devices that reproduce the system mechanically. While the new synthetic retina has only been tested in the laboratory, Restrepo-Schild hopes to continue her research to explore its potential with living tissues. That may still be a ways off, but it could surely become a more viable way than other efforts to restore sight to people with retinal issues. Via: MedicalXpress Source: Nature.com
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Soft, synthetic retinas may offer a better implant solution
If the idea of a more secure Windows browser appeals to you — and why wouldn’t it — then you might want to have a peek at the latest Windows 10 Insider Preview Build . That’s because it includes the Windows Defender Application Guard for Microsoft Edge, which was announced last September but is finally available for testing today. This Application Guard essentially encases your browser in a virtual machine, so that if your browser ever gets attacked by malware, it won’t affect the rest of your PC. To enable this, you need to use the “Turn Windows features on or off” dialog, and then mark the checkbox for “Windows Defender Application Guard.” Now when you open Microsoft Edge and click on the menu, you’ll see the option for a “New Application Guard window.” Click it, and a new special isolated browser window will appear. The whole thing is possible due to the Virtualization Based Security (VBS) made possible by Windows 10. The virtual PC created by Application Guard would keep the Edge browser separate from storage, other apps and the Windows 10 kernel. Other browsers offer “sandboxes” too, but Microsoft says that Application Guard is unique because there’s a hardware container that makes it impossible for malware and other exploits to seep through. There are a couple of caveats though. Running Edge in a virtual machine will likely slow it down, and since each browser’s session is siloed, all data and cookies are lost once you close it. It’s also only available for Enterprise users for now, presumably because their security needs are much higher than the average person. Still, perhaps it could be introduced as an optional feature later on for everyday users. Aside from Application Guard, the Windows 10 Insider Preview Build also includes an improved PDF Reader for Microsoft Edge and integrated Cortana settings.
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Microsoft tests a secured Edge browser for business