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Wednesday, July 3, 2013

Opera 15 Chromium-based browser officially launched for PC and Mac

While the non-final build of Opera's new browser for PC and Mac was simply called "Next," today it's chosen the more formal title of Opera 15 for its official release. There aren't any features of note that we hadn't seen in the desktop preview of the WebKit-based software (or should we call it Blink-based?), but to jog your memory, it sports a fresh design, a Discover feature for catching up on the latest news and a tweaked Speed Dial menu for quick access to your favorite corners of the internet. Also, the web-clipping Stash feature, predictive address-cum-search bar, new download manager and "Off-Road mode" for extra compression on lousy connections are all included in the final version. We ran a quick SunSpider benchmark on the Mac build of Opera 15, in which it scored 167ms, compared with 171ms in Chrome. If you're not already allied to one of the many competing browsers and feel like giving Opera 15 a try, head to the source below for the download links.

Filed under: Desktops, Laptops, Internet, Software

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Source: http://www.engadget.com/2013/07/02/opera-15-launch/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget

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Tuesday, July 2, 2013

How 3D Printing Can Build New Bone

Damaged bones could be fixed with a new technique that involves 3D printing a tissue using living stem cells.

For example, if a child had a jawbone defect, you could take an image of the defect, feed it into a computer and print a replacement to precisely fill the defect using the patient's own cells, said Kevin Shakeshaff, a pharmacist at the University of Nottingham in England.

"The tissues of our body are structured at the level of single cells," Shakeshaff said. "Using 3D printing, we can position cells in precise places."

The technology, which enables scientists to create a custom-fitted body part, is on display at the Royal Society?s annual Summer Science Exhibition this week in London.? [7 Cool Uses of 3D Printing in Medicine]

To create the bone replacement, the 3D bioprinter creates a scaffold in the shape of the bone, and coats it with adult human stem cells, which are capable of developing into many different tissue types.

The printer's "ink" consists of a polymer called polylactic acid and a gel-like substance called alginate. The polylactic acid provides the hard, mechanical strength of bone, while the alginate acts as a cushioning material for the cells.

The printed product can be implanted in the body, where the scaffold will degrade and be replaced by new bone within about three months.

"The first advantage is you get something in the exact shape of the defect you're trying to replace," Shakeshaff said. "More subtly, you have the ability to organize where the cells go within the scaffold," he said, adding that it leads to better blood vessel formation and ultimately better bone formation.

Previously, Shakeshaff and his colleagues developed a method of replacing bone by injecting a material that solidifies inside the body without damaging cells. Surgeons can use this as a quick fix for filling an injury. But the new 3D printing technique may offer a better solution.

At the exhibition, the team is also showing off a technique for manipulating stem cells using "laser tweezers." In the technique, two laser beams are crossed, creating an attractive force. The lasers can then pick up cells and move them around with unprecedented precision. By manipulating cells in this way, the researchers hope to understand the precise cell movements within developing human embryos.

Ultimately, these techniques may help scientists build fully functional replacements for bones or organs. The 3D printing method may be clinically available within a decade, Shakeshaff said, and the same technique could also be applied to repair more complex tissues, such as the liver or heart.

Visitors to the exhibition can try out the new techniques themselves: picking up cells using the laser tweezers, sculpting the biomaterials into structures such as veins or arteries, and printing 3D scaffolds shaped like skulls and other bones.

The Royal Society hosts the Summer Science Exhibition every year to display advanced science and engineering research from throughout the United Kingdom.

Follow Tanya Lewis on Twitter?and Google+.?Follow us @livescience, Facebook?& Google+. Original article on?LiveScience.com.

Source: http://news.yahoo.com/3d-printing-build-bone-191414159.html

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GALEX decommissioned: What happens to abandoned space probes?

NASA's earth-orbiting GALEX was shut down Friday, meaning that the spacecraft will join a long line of space probes sacrificed to the universe.

By Elizabeth Barber,?Contributor / July 1, 2013

This NASA Galaxy Evolution Explorer (GALEX) mosaic of ultraviolet images obtained from December 2003 shows the large galaxy in Andromeda, Messier 31.

NASA/California Institute of Technology /AFP

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The pink slip was delivered at 3:09 p.m. EDT on Friday in Dulles, Vermont. The order: decommission Galaxy Evolution Explorer.

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And so, after about a decade of use, the power was flicked off on GALEX.

The Earth-orbiting spacecraft ? which had been cut from NASA?s budget in February 2011 and had survived off funds from the California Institute of Technology ? had racked up a sizable roster of discoveries?during its mission, observing the teenage-stage of galaxy growth, a black hole consuming a star, the presence of new stars around dead galaxies, and?insights into the nature of dark energy.

The spacecraft will remain in orbit for at least another 65 years, floating glumly and uselessly around the Earth. Then it will fall back toward the planet, burning up as it re-enters the atmosphere, doing one last service as a ?shooting star? on which a celestial-looking child might make a wish ? just as writer Ray Bradbury, in his 1951 story Kaleidoscope, imagined an unlucky, falling astronaut as the object on which a small Illinois boy pins all his hopes.?

GALEX?s sad, lonely end is typical. Few objects launched into space have hope of seeing Earth again. Unless, of course, there are people on board, that brave object is designed not to come back to us, but to serve its mission and then remain out there as a teeny record of human ingenuity and curiosity floating through an impassive universe.

Some of these explorers, like GALEX, will meet a sudden end. Our space record is packed with casualties ? spacecraft that made fatal landings and the dust of which has been received neatly into the universe. There was Russia?s Venera 3, a Venus-bound probe that crashed into the planet in 1966. And there?s the US?s Mars Climate Orbiter, which in 1998 made a faulty entry into the planet?s orbit and fizzled up in the unfriendly atmosphere.

But for other spacecraft, the end is more uncertain, more a long wait for something, anything, to happen. Other Venera probes (Russia launched some 16 of them) are presumably still somewhere on Venus, their batteries shot. And on Mars, NASA's Spirit Rover stopped communicating in 2010; since then it has lingered hopelessly there in the Martian desert. Opportunity, its twin rover, is still chugging along, sending back new information as it waits for something to go wrong. ?Every day is a gift,? said John Callas, of NASA?s Jet Propulsion Laboratory, of that rover, earlier this month.

Curiosity rover ? which landed on Mars last summer ? has a mission of one Mars year, or some 687 Earth days. Perhaps it will outlast its warranty. But eventually it will join the other decommissioned, powerless rovers on the Red Planet, waiting dully for something to happen to it, ever so slowly eroding and gathering Martian dust.

Perhaps the loneliest of ends is reserved for the most far-flung objects, which quietly, without complaint, recede into the universe.

In Bradbury?s Kaleidoscope, a spacecraft splinters midflight and sends its human cargo floating through the terrible emptiness, waiting for something that will put an end to it all. And so they fall with ?vague acceptance,? with ?varying degrees of terror and resignation,? with the knowledge that ?nothing could bring them back.?

The falling astronauts in that story enjoy the benefit of a reasonably short lifespan. But for the (mercifully non-sentient) space probes, the wait is much longer, possibly forever.

Voyager 1, which is now at the outskirts of our solar system and preparing to depart for the rest of our galaxy, and Voyager 2 will run out of fuel in about 2020. After that, the siblings will drift through space, waiting, "each going to a separate and irrevocable fate."

Source: http://rss.csmonitor.com/~r/feeds/science/~3/2ZnQarWW6-c/GALEX-decommissioned-What-happens-to-abandoned-space-probes

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To Drive More Clicks, Twitter Is Testing A Popular Tweets History Feature [Update: It's Gone]

A little over a year ago, Twitter kicked off an initiative to experiment with different ways of making tweets more interactive -- a strategy that has brought us Twitter cards with previews, and shortcodes for embedding tweets elsewhere. Today, one of the latest experiments is adding more data into the mix: a list of sites linking to where a tweet has been embedded.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/Xb-C7C_vi4c/

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Monday, July 1, 2013

The Flaming Maiden: Leukemia and Lymphoma Society's Team in ...

When I think of Leukemia, I think of the children who lose their childhoods to this awful disease. When I think of Lymphoma, I think of my Grandfather who battled cancer for a decade.

The Team in Training experience will be admittedly difficult for me. I'm not a strong runner, and I'm certainly not a morning person. To do this, I'll have to become both. For the next four months, I'll go to bed early (no small feat for a night owl), and drag my sorry self out of bed early (no small feat for a decidedly NOT morning person). I will run a minimum of three miles each morning, except Wednesdays and Saturdays when I will train long distances with my Team. The goal is to raise $1000 and run my first half-marathon, 13.1 miles, in November.

One thing I won't have to change in this process is that I am an advocate for important causes. Finding a cure so that no child loses their childhood to these illnesses is certainly an important cause. Thank you for your support as I embark on what I expect will be a life-changing experience.

Tonight, I'm turning in at the same time my kid goes to bed so I can get up early and get running. It's the first step in working to find a cure so more kids can have more smiles and more days at the beach. So more kids can have the kind of carefree childhood we try to give our son.?

Source: http://theflamingmaiden.blogspot.com/2013/06/leukemia-and-lymphoma-societys-team-in.html

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Park wins US Women's Open for 3rd straight major

Inbee Park, of South Korea, is sprayed with champagne after sinking her last putt on the 18th green during the final round at the U.S. Women's Open golf tournament at Sebonack Golf Club in Southampton, N.Y., Sunday, June 30, 2013. Inbee Kim won the championship, shooting 8 under-par. (AP Photo/Seth Wenig)

Inbee Park, of South Korea, reacts after sinking her last putt of the tournament on the 18th green during the final round at the U.S. Women's Open golf tournament at Sebonack Golf Club in Southampton, N.Y., Sunday, June 30, 2013. Inbee Kim won the championship, shooting 8 under-par. (AP Photo/Frank Franklin II)

Inbee Park, of South Korea, kisses the championship trophy after winning the U.S. Women's Open golf tournament at the Sebonack Golf Club Sunday, June 30, 2013, in Southampton, N.Y. Park has won the U.S. Women's Open to make history with titles in the year's first three majors. (AP Photo/Frank Franklin II)

Inbee Park, of South Korea, holds the championship trophy after winning the U.S. Women's Open golf tournament at the Sebonack Golf Club Sunday, June 30, 2013, in Southampton, N.Y. (AP Photo/Frank Franklin II)

SOUTHAMPTON, N.Y. (AP) ? Inbee Park set many golfing goals. Etching her name alongside Babe Zaharias was never one of them.

Yet now they're the only two players to win the first three majors of the year. Park became the first to accomplish the feat in the modern era Sunday with her second U.S. Women's Open title.

"Trying to put my name next to hers means just so much," Park said. "I would think I would never get there; it's somewhere that I've never dreamed of. But all of a sudden, I'm there."

The world's top-ranked player finished at 8 under to win by four strokes. Her 2-over 74 in the final round was more than enough, with Sebonack's trying conditions keeping any rivals from making a run. Only three players were under par for the tournament.

Fellow South Korean I.K. Kim also shot 74 for her second runner-up finish at a major.

Zaharias won the year's first three majors in 1950 ? back when there were only three. Now there are five, so Grand Slam might not quite be the right term if Park wins all of them.

Ahead by four strokes at the start of the round, Park birdied the ninth and 10th holes to extend her lead. She has won six times already this year, including three straight tournaments. Park added to another historic U.S. Women's Open victory in 2008, when she became the event's youngest champion at age 19.

"I didn't know what was going on at that time," Park said. "I played very good golf then, but I didn't know what I was playing for, and that was just my first win. It was a great championship then, but now I think I really appreciate more and I really know what this means."

So Yeon Ryu shot 72 to finish third at 1 under. South Korean players took the top three spots and have won the last five majors.

Ryu and Na Yeon Choi, the last two U.S. Women's Open champs, sprayed Park with champagne after she made her final putt on the 18th green.

With lashing wind and devilish greens, Sebonack was a classically troublesome U.S. Women's Open course. And once Park built a lead, nobody could mount a charge.

She certainly wasn't going to make enough mistakes to come back to the field. Park had just 10 bogeys and no double bogeys in four rounds.

She predicted Saturday that shooting even par in the final round would be enough, and she sure was right.

All of four players were under par Sunday ? though that was still more than the third round, when only Park achieved it.

Kim birdied No. 2 to pull within three strokes; she couldn't claw closer. And when she bogeyed the fourth hole, the deficit was back to four shots.

Park bogeyed the sixth and seventh, but so did Kim.

Kim had what would have qualified as a sensational week if not for Park, finishing at least three strokes better than everyone but the player currently dominating the sport.

"You can obviously feel for someone like I.K. Kim who would be winning any other U.S. Open on this golf course if it weren't for Inbee," said seven-time major champion Karrie Webb.

This was Kim's fourth top-four finish at a U.S. Women's Open, but she's still seeking her first major title. She was a foot away last year at the Kraft Nabisco, then missed a short putt on No. 18 that would have clinched the championship and went on to lose in a playoff.

Asked if she feels she's on the verge of a major breakthrough, Kim paused for a moment then said: "Yeah, to be honest, yeah, it's time to win it."

"But I think things have to come naturally," she added, "and it's great to play with Inbee, and she's doing so well. Seeing her doing it, it just makes me want it more."

Americans Paula Creamer (72) and Angela Stanford (74) and England's Jodi Ewart Shadoff (76) tied for fourth at 1 over. Shadoff was alone in third at 3 under after the third round but opened Sunday with three straight bogeys.

Soon-to-be Oklahoma State player Casie Cathrea shot 70 on Sunday to match Shanshan Feng for the best round of the day and finish as the low amateur at 9 over. Lydia Ko, the 16-year-old New Zealander who won the Canadian Open last August to become the youngest LPGA Tour winner, was next at 11 over.

Park also became the second player to win the U.S. Women's Open after victories in her previous two tournaments. Mickey Wright did it in 1964.

The 24-year-old Park won the Kraft Nabisco and LPGA Championship for her first two major titles of the year. Up next is the Women's British Open at St. Andrews on Aug. 1-4.

The Evian Championship is Sept. 12-15. Park won the French event last year before it became a major championship.

Park contemplated the current definition of a Grand Slam.

"So I think the British Open is one I have to win," she said. "So it would be great if I could win five, but I still think four means a Grand Slam.

Laughing, she added: "I think four out of five is very big."

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/347875155d53465d95cec892aeb06419/Article_2013-06-30-US%20Women's%20Open/id-a478139f103f4634bb57187978dda653

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Liver protein crucial for pregnancy

June 30, 2013 ? A protein first shown to function in the liver plays a crucial role in pregnancy in mice and has a key role in the human menstrual cycle, according to researchers at the University of Montreal. Mice that were genetically engineered not to produce the liver receptor homolog-1 (Lrh-1) molecule were unable to create the uterine conditions necessary for establishing and sustaining pregnancy, resulting in the formation of defective placentas. The researchers then showed that Lhr-1 was present in the human uterus and the essential processes related to the success of early gestation.

"We previously showed that Lrh-1 is essential for ovulation. Our newest studies have revealed that it is plays an important role in the uterus, raising the possibility that Lrh-1 deficiency contributes to human gestational failure," explained lead author Bruce Murphy, of the university's Animal Reproduction Research Centre. "We worked with mice before looking at human tissues. I believe it premature to propose determination of Lrh-1 in uterine biopsies as a diagnostic tool, but we are working on determining the receptor's pattern of expression across the menstrual cycle."

The researchers also looked at whether hormone replacement therapy might restore normal uterine functions in the mice. "Progesterone did not make a difference. Although hormone therapy allowed for the embryos to implant, we saw problems with the lining in the uterus, compromised formation of the placenta, fetal growth retardation and fetal death," Murphy said. "However, there are new Lrh-1 agonists and antagonists, currently in clinical trials to treat hepatic consequences of type II diabetes, and thus therapeutic intervention might be possible."

The study was published in Nature Medicine on June 30, 2013, and was funded by the Canadian Institutes of Health Research. The US National Institutes of Health funded collaborators at Baylor University that contributed to the study.?

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The above story is reprinted from materials provided by Universite de Montreal, via Newswise.

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Source: http://feeds.sciencedaily.com/~r/sciencedaily/most_popular/~3/XMMTwWhUK3A/130630144447.htm

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