Source: http://news.feedzilla.com/en_us/stories/politics/top-stories/304631208?client_source=feed&format=rss
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Friday, May 10, 2013
Thursday, May 2, 2013
Linux kernel version 3.9 adds better support for Chromebooks, maybe even yours
Linus Torvalds has pulled the big red lever marked Version 3.9, unleashing the latest Linux kernel onto the world and at the same time bringing some good news for Chromebook tinkerers. The update builds on the Chromebook Pixel tweak we saw back in February by adding support for components in "Chrome laptops sold by many companies" -- with the changelog specifically mentioning the x86-powered Samsung Series 5, Acer C7, HP Pavilion 14 as well as support for the Pixel's touchscreen, all of which should make it easier to run your preferred distro in place of Chrome OS on those machines. Other general improvements include better support for Intel power-saving features, the ability to use an SSD as a hard drive cache as well as KVM visualization for users with ARM-powered gear. Just make sure there's no NVIDIA hardware inside any of those boxes -- you know it makes Linus cranky.
Filed under: Software
Via: PC World
Source: Gmane
Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/sKBxVmQVpRc/
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Wednesday, May 1, 2013
New zooming technique for entering text into smartwatches
Apr. 30, 2013 ? Technology blogs have been abuzz that smartwatches may soon be on their way from companies such as Apple, Google, Samsung and Microsoft. But as capable as these ultra-small computers may be, how will users enter an address, a name, or a search term into them? One solution is an iterative zooming technique developed and tested by researchers at Carnegie Mellon University.
Called ZoomBoard, this text entry technique is based on the familiar QWERTY keyboard layout. Though the full keyboard is impossibly small on a watch-size display, simply tapping the screen once or twice will enlarge an individual key until it can be comfortably and accurately pressed.
Capital letters can be typed by momentarily holding a key. A swipe to the left deletes a character. A swipe to the right types a space. An upward swipe calls up a secondary keyboard of numbers and other symbols.
"You aren't going to write a novel, but it gets the job done," said Stephen Oney, a Ph.D. student in the Human-Computer Interaction Institute (HCII). "This opens up new possibilities for devices such as smartwatches, which generally lack any means of entering text, as many aren't powerful enough for voice recognition."
"Users can enter about 10 words per minute at high accuracy on a keyboard the size of a penny," said Chris Harrison, a Ph.D. candidate who will soon join the HCII faculty. "That's plenty fast enough to dial a phone number, or enter 'where is pizza?' or get 'directions home.'"
Oney and Harrison developed and evaluated ZoomBoard with fellow HCII students Amy Ogan and Jason Wiese. They will present their findings May 1 at CHI 2013, the Conference on Human Factors in Computing Systems, in Paris, where the research was awarded an honorable mention for Best Paper.
A video demonstration and other material is available at the project website, http://www.chrisharrison.net/index.php/Research/Zoomboard.
"A lot of people are banking on voice for text entry on very small devices, and no doubt voice will play an increasingly central role," Harrison said. "But sometimes you need to enter something discretely and without a big fuss; for that, ZoomBoard is great."
Other approaches to text input on small devices have included new keyboard layouts and gesture-based characters. But the HCII team opted to use the conventional QWERTY keyboard because the configuration is instantly familiar to users.
Further development of ZoomBoard might include a language model, a standard feature on most soft keyboards that suggests possible words based on the first few letters typed; for ZoomBoard, this might also involve adjusting the centering point of the first zoom step over a predicted letter.
The researchers say ZoomBoard also could be useful on larger keyboards for people who have movement disorders that make typing difficult or for people who are using their keyboards while jogging.
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The above story is reprinted from materials provided by Carnegie Mellon University, via EurekAlert!, a service of AAAS.
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Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/~3/LRlQwXwef9w/130430131538.htm
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Around the Web?
Happy Tuesday! Take some time out of your day for these recommended reads: Madonna‘s daughter Lourdes dyes her hair green — PEOPLE StyleWatch Tips and tricks to make sure Mom is always in the family photo — Baby Zone A woman who received a womb transplant is now 6-weeks pregnant — CBS News The American [...]
Source: http://feeds.celebritybabies.com/~r/celebrity-babies/~3/EbCr0SG8Sis/
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Watch a Bowl of Cereal Go Snap, Crackle, Boom In Glorious Slo-Mo
Even though this bowl of breakfast cereal meets its demise at the hands of what looks to be a tiny firecracker, through the eye of a high-speed camera the resulting explosion makes it look like a small island being wiped out by an atomic bomb.
Whoever first said that you shouldn't play with your food obviously didn't have access to a high-speed camera and explosives. Because everything from broccoli to brussel sprouts is suddenly very appealing when there's the potential for it to go boom.
Source: http://gizmodo.com/watch-a-bowl-of-cereal-go-snap-crackle-boom-in-glorio-486008259
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Zinc: The Goldilocks metal for bioabsorbable stents?
![[ Back to EurekAlert! ]](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_tKOYuqyf-jMEz25X6gY4xmFaMcrOBN6mAiNQ9ksyaiRagu0OJLx0B3SCnorF0vwFjkkBqAVUjBTacqzfCP5SIjMqKXtOqP7ZLaAEv7dII=s0-d){kind=small}
Public release date: 30-Apr-2013[ | E-mail |
Share ] Contact: Marcia Goodrich
mlgoodri@mtu.edu
906-487-2343
Michigan Technological University
Some materials dissolve too quickly in the body, and some hang around forever -- zinc, however, may be just right
In 2012, more than 3 million people had stents inserted in their coronary arteries. These tiny mesh tubes prop open blood vessels healing from procedures like a balloon angioplasty, which widens arteries blocked by clots or plaque deposits. After about six months, most damaged arteries are healed and stay open on their own. The stent, however, is there for a lifetime.
Most of the time, that's not a problem, says Patrick Bowen, a doctoral student studying materials science and engineering at Michigan Technological University. The arterial wall heals in around the old stent with no ill effect. But the longer a stent is in the body, the greater the risk of late-stage side effects. For example, a permanent stent can cause intermittent inflammation and clotting at the implant site. In a small percentage of cases, the tiny metal segments that make up the stent can break and end up poking the arterial wall.
"When the stent stays in place 15, 20 or 25 years, you can see these side effects," says Bowen. "It's not uncommon to have a stent put in at age 60, and if you live to be 80, that's a long time for something to remain inert in your body."
That's why researchers are trying to develop a bioabsorbable stent, one that would graduallyand harmlesslydissolve after the blood vessel is healed.
Many studies have investigated iron- and magnesium-based stents. However, iron is not promising: it rusts in the artery. Magnesium, on the other hand, dissolves too quickly. "We wondered, 'Isn't there something else?'" Bowen said. "And we thought, 'Why not zinc?'"
So they placed tiny zinc wires in the arteries of rats. The results were amazing. "The corrosion rate was exactly where it needed to be," Bowen said. The wires degraded at a rate just below 0.2 millimeters per yearthe "magic" value for bioabsorbable stentsfor the first three months. After that, the corrosion accelerated, so the implant would not remain in the artery for too long. On top of that, the rats' arteries appeared healthy when the wires were removed, with tissue firmly grasping the implant.
"Plus, zinc reduces atherosclerosis," he added, referring to zinc's well-known ability to fight the development of plaque in the arteries. "How cool is that? A zinc stent might actually have health benefits."
There is one drawback. "A stent made of conventional zinc would not be strong enough to hold open a human artery," he said. "We need to beef it up, double the strength."
"The good news is that there are commercial zinc alloys that are up to three times stronger," Bowen said. "We know we can get there. We just don't want to ruin our corrosion behavior."
The researchers have filed a provisional patent on their discoveries and are now testing new zinc-based stent materials.
An article on their work, "Zinc Exhibits Ideal Physiological Corrosion Behavior for Bioabsorbable Stents," was recently published in the journal Advanced Materials.
Bowen's research is supported by a two-year, $52,000 predoctoral fellowship from the American Heart Association. Initial research was supported by a summer fellowship from the DeVlieg Foundation.
Bowen's advisor is Jaroslaw Drelich, a professor of materials science and engineering, and they work in close collaboration with Jeremy Goldman, an associate professor of biomedical engineering. Undergraduates Jacob Braykovich and Matt Tianen are also working on material development and corrosion testing related to the project.
###
[ | E-mail | Share ] ?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Public release date: 30-Apr-2013[ | E-mail |
Share ] Contact: Marcia Goodrich
mlgoodri@mtu.edu
906-487-2343
Michigan Technological University
Some materials dissolve too quickly in the body, and some hang around forever -- zinc, however, may be just right
In 2012, more than 3 million people had stents inserted in their coronary arteries. These tiny mesh tubes prop open blood vessels healing from procedures like a balloon angioplasty, which widens arteries blocked by clots or plaque deposits. After about six months, most damaged arteries are healed and stay open on their own. The stent, however, is there for a lifetime.
Most of the time, that's not a problem, says Patrick Bowen, a doctoral student studying materials science and engineering at Michigan Technological University. The arterial wall heals in around the old stent with no ill effect. But the longer a stent is in the body, the greater the risk of late-stage side effects. For example, a permanent stent can cause intermittent inflammation and clotting at the implant site. In a small percentage of cases, the tiny metal segments that make up the stent can break and end up poking the arterial wall.
"When the stent stays in place 15, 20 or 25 years, you can see these side effects," says Bowen. "It's not uncommon to have a stent put in at age 60, and if you live to be 80, that's a long time for something to remain inert in your body."
That's why researchers are trying to develop a bioabsorbable stent, one that would graduallyand harmlesslydissolve after the blood vessel is healed.
Many studies have investigated iron- and magnesium-based stents. However, iron is not promising: it rusts in the artery. Magnesium, on the other hand, dissolves too quickly. "We wondered, 'Isn't there something else?'" Bowen said. "And we thought, 'Why not zinc?'"
So they placed tiny zinc wires in the arteries of rats. The results were amazing. "The corrosion rate was exactly where it needed to be," Bowen said. The wires degraded at a rate just below 0.2 millimeters per yearthe "magic" value for bioabsorbable stentsfor the first three months. After that, the corrosion accelerated, so the implant would not remain in the artery for too long. On top of that, the rats' arteries appeared healthy when the wires were removed, with tissue firmly grasping the implant.
"Plus, zinc reduces atherosclerosis," he added, referring to zinc's well-known ability to fight the development of plaque in the arteries. "How cool is that? A zinc stent might actually have health benefits."
There is one drawback. "A stent made of conventional zinc would not be strong enough to hold open a human artery," he said. "We need to beef it up, double the strength."
"The good news is that there are commercial zinc alloys that are up to three times stronger," Bowen said. "We know we can get there. We just don't want to ruin our corrosion behavior."
The researchers have filed a provisional patent on their discoveries and are now testing new zinc-based stent materials.
An article on their work, "Zinc Exhibits Ideal Physiological Corrosion Behavior for Bioabsorbable Stents," was recently published in the journal Advanced Materials.
Bowen's research is supported by a two-year, $52,000 predoctoral fellowship from the American Heart Association. Initial research was supported by a summer fellowship from the DeVlieg Foundation.
Bowen's advisor is Jaroslaw Drelich, a professor of materials science and engineering, and they work in close collaboration with Jeremy Goldman, an associate professor of biomedical engineering. Undergraduates Jacob Braykovich and Matt Tianen are also working on material development and corrosion testing related to the project.
###
[ | E-mail | Share ] ?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Source: http://www.eurekalert.org/pub_releases/2013-04/mtu-ztg043013.php
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A Scientifically Accurate Teenage Mutant Ninja Turtle Is So Gross
Cowabunga dude. Everything the Teenage Mutant Ninja Turtles did was so freaking cool: hang out, eat pizza, crack jokes and fight bad guys. They're just like us! Or at least, who we wanted to be when we were kids. But after seeing this scientifically accurate ninja turtles, well, maybe not. Turtles can get gross.
The animation was made by Animation Domination High Def who also created the hilarious scientifically accurate Spider-Man
Source: http://gizmodo.com/a-scientifically-accurate-teenage-mutant-ninja-turtle-i-485001733
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