Study led by GW professor provides better understanding of water's freezing behavior at nanoscale

Public release date: 21-May-2013
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Contact: Joanne Welsh
jwelsh@gwu.edu
202-994-2050
George Washington University

The results of a new study led by George Washington University Professor Tianshu Li provide direct computational evidence that nucleation of ice in small droplets is strongly size-dependent, an important conclusion in understanding water's behavior at the nanoscale. The formation of ice at the nanoscale is a challenging, basic scientific research question whose answer also has important implications for climate research and other fields.

The crystallization of ice from supercooled water is generally initiated by a process called nucleation. Because of the speed and size of nucleationit occurs within nanoseconds and nanometersprobing it by experiment or simulation is a major challenge.

By using an advanced simulation method, Dr. Li and his collaborators, Davide Donadio of Germany's Max Planck Institute for Polymer Research, and Giulia Galli, a professor of chemistry and physics at the University of California, Davis, were able to demonstrate that nucleation of ice is substantially suppressed in nano-sized water droplets. Their paper, "Ice nucleation at the nanoscale probes no man's land of water," was published today in the journal Nature Communications.

"A current challenge for scientists is to unveil water's behaviors below -35 degrees Celsius and above -123 degrees Celsius, a temperature range that chemists call 'no man's land,' " said Dr. Li, a professor of civil and environmental engineering at the George Washington University School of Engineering and Applied Science. "Fast ice crystallization can hardly be avoided at such low temperatures, so maintaining water in a liquid state is a major experimental challenge."

Since the frequency of ice nucleation scales with the volume of water, one of the strategies for overcoming this kinetic barrier is to reduce the volume of water. However, this raises the question of whether water at the nanoscale can still be regarded as equivalent to bulk water, and if not, where that boundary would be.

The team's results answer this question. By showing that the ice nucleation rate at the nanoscale can be several orders of magnitude smaller than that of bulk water, they demonstrate that water at such a small scale can no longer be considered bulk water.

"We also predict where this boundary would reside at various temperatures," Dr. Li said. The boundary refers to the size of the droplet where the difference vanishes. The team's findings will help with the interpretation of molecular beam experiments and set the guidelines for experiments that probe the 'no man's land' of water.

The results are also of importance in atmospheric science, as they may improve the climate model of the formation of ice clouds in upper troposphere, which effectively scatter incoming solar radiation and prevent earth from becoming overheated by the sun. The results have important implications in climate control research, too. One of the current debates is whether the formation of ice occurs near the surface or within the micrometer-sized droplets suspended in clouds. If it is the former, effective engineering approaches may be able to be taken to tune the surface tension of water so that the ice crystallization rate can be controlled.

"Our results, indeed, support the hypothesis of surface crystallization of ice in microscopic water droplets," Dr. Li said. "Obtaining the direct evidence is our next step."

###

GW School of Engineering and Applied Science

GW's School of Engineering and Applied Science prepares engineers and applied scientists to address society's technological challenges by offering outstanding undergraduate, graduate and professional educational programs, and by providing innovative, fundamental and applied research activities. The school has five academic departments, 11 research centers, 90 faculty and more than 2,500 undergraduate and graduate students. Core areas of academic excellence include biomedical engineering, cybersecurity, high performance computing, nanotechnologies, robotics and transportation safety engineering.

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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: 21-May-2013
[ | E-mail | Share ]

Contact: Joanne Welsh
jwelsh@gwu.edu
202-994-2050
George Washington University

The results of a new study led by George Washington University Professor Tianshu Li provide direct computational evidence that nucleation of ice in small droplets is strongly size-dependent, an important conclusion in understanding water's behavior at the nanoscale. The formation of ice at the nanoscale is a challenging, basic scientific research question whose answer also has important implications for climate research and other fields.

The crystallization of ice from supercooled water is generally initiated by a process called nucleation. Because of the speed and size of nucleationit occurs within nanoseconds and nanometersprobing it by experiment or simulation is a major challenge.

By using an advanced simulation method, Dr. Li and his collaborators, Davide Donadio of Germany's Max Planck Institute for Polymer Research, and Giulia Galli, a professor of chemistry and physics at the University of California, Davis, were able to demonstrate that nucleation of ice is substantially suppressed in nano-sized water droplets. Their paper, "Ice nucleation at the nanoscale probes no man's land of water," was published today in the journal Nature Communications.

"A current challenge for scientists is to unveil water's behaviors below -35 degrees Celsius and above -123 degrees Celsius, a temperature range that chemists call 'no man's land,' " said Dr. Li, a professor of civil and environmental engineering at the George Washington University School of Engineering and Applied Science. "Fast ice crystallization can hardly be avoided at such low temperatures, so maintaining water in a liquid state is a major experimental challenge."

Since the frequency of ice nucleation scales with the volume of water, one of the strategies for overcoming this kinetic barrier is to reduce the volume of water. However, this raises the question of whether water at the nanoscale can still be regarded as equivalent to bulk water, and if not, where that boundary would be.

The team's results answer this question. By showing that the ice nucleation rate at the nanoscale can be several orders of magnitude smaller than that of bulk water, they demonstrate that water at such a small scale can no longer be considered bulk water.

"We also predict where this boundary would reside at various temperatures," Dr. Li said. The boundary refers to the size of the droplet where the difference vanishes. The team's findings will help with the interpretation of molecular beam experiments and set the guidelines for experiments that probe the 'no man's land' of water.

The results are also of importance in atmospheric science, as they may improve the climate model of the formation of ice clouds in upper troposphere, which effectively scatter incoming solar radiation and prevent earth from becoming overheated by the sun. The results have important implications in climate control research, too. One of the current debates is whether the formation of ice occurs near the surface or within the micrometer-sized droplets suspended in clouds. If it is the former, effective engineering approaches may be able to be taken to tune the surface tension of water so that the ice crystallization rate can be controlled.

"Our results, indeed, support the hypothesis of surface crystallization of ice in microscopic water droplets," Dr. Li said. "Obtaining the direct evidence is our next step."

###

GW School of Engineering and Applied Science

GW's School of Engineering and Applied Science prepares engineers and applied scientists to address society's technological challenges by offering outstanding undergraduate, graduate and professional educational programs, and by providing innovative, fundamental and applied research activities. The school has five academic departments, 11 research centers, 90 faculty and more than 2,500 undergraduate and graduate students. Core areas of academic excellence include biomedical engineering, cybersecurity, high performance computing, nanotechnologies, robotics and transportation safety engineering.

---

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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/2013-05/gwu-slb052113.php

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Qualcomm demos next-gen 2,560 x 1,440 Mirasol display (hands-on video)

We haven't heard about Mirasol for a while now, but Qualcomm's reflective display tech showed up in a few proof-of-concepts on the SID Display Week floor. We got a look at a previously announced 1.5-inch panel embedded on the top of an "always-on" smartphone and on the face of a smartwatch. Though a rep took care to emphasize that these were just mockups, he said the screen will soon show up in some third-party devices.

More interesting, though, was the company's next-gen display: a 5.1-inch panel sporting a stunning 2,560 x 1,440 (577 ppi) resolution. Viewed up close, it delivers crisp images, but the reflective display kicks back a silvery tint and colors don't pop as they do on other handsets. But while the sky-high pixel count may not tell the whole story, the screen offers one huge plus: a 6x power advantage over LCD and OLED displays. In practical terms, that means devices could go days without charging. Don't expect to see this guy in your next smartphone, though: by "next-gen," Qualcomm means this tech has a few more years in the R&D phase before it'll be ready to hit a licensee's production line. For now, make do with our hands-on video after the break.

Gallery: Qualcomm 577 ppi Mirasol displays eyes-on

Filed under: Cellphones, Displays, Wearables, Mobile

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Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/28F5tpDt8gU/

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Giants' Vogelsong wins at last but injures hand

San Francisco Giants starting pitcher Ryan Vogelsong grabs his hand after being hit by a pitch against the Washington Nationals during the fifth inning of a baseball game on Monday, May 20, 2013 in San Francisco. Vogelsong left the game after the game. (AP Photo/Marcio Jose Sanchez)

San Francisco Giants starting pitcher Ryan Vogelsong grabs his hand after being hit by a pitch against the Washington Nationals during the fifth inning of a baseball game on Monday, May 20, 2013 in San Francisco. Vogelsong left the game after the game. (AP Photo/Marcio Jose Sanchez)

San Francisco Giants starting pitcher Ryan Vogelsong throws to the Washington Nationals during the first inning of a baseball game on Monday, May 20, 2013 in San Francisco. (AP Photo/Marcio Jose Sanchez)

San Francisco Giants starting pitcher Ryan Vogelsong throws to the Washington Nationals during the first inning of a baseball game on Monday, May 20, 2013 in San Francisco. (AP Photo/Marcio Jose Sanchez)

Washington Nationals shortstop Ian Desmond (20) forces out San Francisco Giants' Andres Torres (56) at second base after a ground ball from Brandon Crawford during the fourth inning of a baseball game on Monday, May 20, 2013 in San Francisco. (AP Photo/Marcio Jose Sanchez)

Washington Nationals starter Zach Duke, second from left, is pulled from the game by manager Davey Johnson, second from right, during the fourth inning of a baseball game on Monday, May 20, 2013 in San Francisco. (AP Photo/Marcio Jose Sanchez)

SAN FRANCISCO (AP) ? Ryan Vogelsong felt the best he had in months, then it all ended on one painful swing.

The right-hander broke his throwing hand chasing an inside fastball after pitching himself toward his first win in seven starts, and the San Francisco Giants returned from a terrible road trip to beat the Washington Nationals 8-0 on Monday night.

Vogelsong was injured while fouling a ball off his hand in the fifth inning. He grimaced in pain while grabbing the hand ? knowing immediately it was serious. He was quickly examined near the batter's box and left the game.

Vogelsong broke two bones along the right pinkie and dislocated a knuckle the area that the medical staff couldn't get popped back into place. He was scheduled for surgery Tuesday morning at Stanford and said he likely would have pins inserted to stabilize the hand and help speed the healing process.

"We're not talking about Tommy John or anything here," Vogelsong said, his eyes misty. "Basically as fast as we can get it to heal so I can start throwing again."

Nationals manager Davey Johnson announced after the game that reliever Ryan Mattheus broke his pitching hand punching a locker in frustration Sunday. The right-hander allowed five runs in one inning of Washington's 13-4 loss to the San Diego Padres, but didn't tell the team about the injury until just before Monday's game.

"Last night after the game he came in and was in the locker room and banged his glove against his locker with his hand in it," Johnson said. "His hand didn't swell up but when he went out to throw today his hand swelled up and he couldn't throw the ball."

Vogelsong (2-4) snapped a six-start winless stretch with just his second victory of 2013 and first since April 11 against the Cubs at Wrigley Field and seemed back on track.

He walked off to warm ovation as Nick Noonan pinch hit. Vogelsong allowed three hits in five scoreless innings and lowered his ERA from 8.06 to 7.19.

"It's really a shame because tonight was the Vogey that we know, the way he threw all of last year, good stuff," manager Bruce Bochy said. "It's a tough one. I feel bad for him. I know he felt really good tonight. You've got to deal with these things. He'll be back, hopefully, in a couple months."

Brandon Belt hit a solo home run, matched his career best with four hits and scored three runs as San Francisco pounded a season-high 17 hits. Angel Pagan hit an RBI double and two-run single for San Francisco, also making a great leaping catch against the center-field wall.

Andres Torres had three hits and drove in a run and Marco Scutaro added an RBI single among his two hits.

Vogelsong got the defensive gem from Pagan when the center fielder slammed into the wall on Adam LaRoche's deep fly in the second.

The 2011 All-Star ended a six-start winless stretch in which he had lost his last two outings and gone 0-3. He was tagged for eight runs ? three earned ? and six hits in two innings for his shortest outing of the year last Wednesday at Toronto.

"It was awesome," Belt said. "The special thing about this team is everybody roots for everybody. We were as happy for him as can be, and it's tough to see him go down like this. But we know he'll be back, and strong and ready to go."

Javier Lopez took over for Vogelsong in the top of the sixth and received a little bit more warm up time. Three more relievers finished for the Giants' sixth shutout. San Francisco snapped a three-game skid after a 1-5 road trip through Toronto and Colorado.

The Giants have until next Tuesday before they need a fifth starter.

Bryce Harper went 0 for 4 in his return to the Nationals' lineup after last season's NL Rookie of the Year missed two games with a bruised left knee. He was hurt in a hard collision with the outfield wall a week earlier at Dodger Stadium that also caused him to need 11 stitches on his chin.

Left-hander Zach Duke (0-1) lasted just 3 1-3 innings in a spot start for Ross Detwiler, who is sidelined with back spasms. Duke allowed four runs and seven hits in his first start of the year.

Washington was shut out for the sixth time.

Vogelsong retired the first eight Nationals hitters in order.

The right-hander lasted only 2 2-3 innings in his first career start against Washington last year, allowing eight runs on nine hits with two walks.

"That's the best I've felt in a long time, from a mental aspect, physical aspect, everything felt good," he said. "It was nice to be able to get out there and have everything I've been working on for the last couple weeks kind of fall into place. From that standpoint it's a good place to start when I come back."

Scutaro extended his hitting streak to 18 games with a third-inning single. The second baseman fielded Roger Bernadina's grounder in the fifth but dropped the ball in exchange from glove to hand, for the Giants' 15th error in their last eight games.

Notes: Nationals OF Jayson Werth, on the 15-day disabled list with a strained right hamstring, is expected to need at least two more weeks to heal after a second MRI showed he "has some problems in there," Johnson said. "He's going to rest a bit." ... A moment of silence was held for the Oklahoma tornado victims before the national anthem. ... RHP Matt Cain (3-2) starts for the Giants in Tuesday night's middle game against righty Stephen Strasburg (2-5). ... San Francisco's Buster Posey has hit safely in 11 of his last 12. ... Belt's homer was the Giants' 21st at home. Last season through their first 23 games at AT&T Park, they had hit just six HRs.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/347875155d53465d95cec892aeb06419/Article_2013-05-21-BBN-Nationals-Giants/id-9418a783180a4e4d8e806a04bb2d8dbc

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Angelina Jolie's Double Mastectomy Highlights the Inequity In ...

First, let me say this: I think that?Angelina Jolie?s?decision to have a preventative double mastectomy to address her exceptionally high risk of breast cancer and buy more time to be a mother to her children was brave. So, too, was her sharing that decision publicly, and using it to frame a much-needed discussion about cancer, treatment options and affordable healthcare for women.

Problem is, the mainstream TV shows, newspapers and websites reporting on Angelina?s decision were so focused on the A-list actress?s breasts that all-too-many seemed to miss the larger point entirely: gene testing, preventative mastectomies and breast reconstruction?hell, options for preventing, treating and surviving breast cancer?is an affluent and mostly white woman?s bet, one that eludes poor and working women of color with little to no insurance, job security and the cash needed to buy those options.

Credit due to Angelina for at least trying to start the conversation in her?New York Times op-ed, in which she detailed her discovering her breast cancer probability through gene testing:

I am writing about it now because I hope that other women can benefit from my experience. Cancer is still a word that strikes fear into people?s hearts, producing a deep sense of powerlessness. But today it is possible to find out through a blood test whether you are highly susceptible to breast and ovarian cancer, and then take action?

Breast cancer?alone kills some 458,000 people each year, according to the World Health Organization, mainly in low- and middle-income countries. It has got to be a priority to ensure that more women can access gene testing and lifesaving preventive treatment, whatever their means and background, wherever they live. The cost of testing for BRCA1 and BRCA2, at more than $3,000 in the United States, remains an obstacle for many women.

All up in between those lines was Angelina?s acknowledgement that there are options for identifying and preventing breast cancer, but you?ve got to have the cash to get it done. The test, alone, would be completely inaccessible, to, say the grocery store worker who brings home a paltry $400 a week after taxes, which makes it hard for her to afford even a simple mammogram. And trust: the school janitor, or the sister at the McDonald?s drive-thru or your auntie answering phones at that secretarial job wouldn?t be able to secure the three months needed to have her breasts removed, heal from the surgery and then go back under the knife for reconstructive surgery and implants?no matter how many of the relatives that came before her were diagnosed with, treated for or died from breast cancer.? Those who lord over blue collar workers aren?t nearly as understanding as, say, a Hollywood producer or a company president who can spare a top manager.

Truth be told, a woman of color or of limited means would have a higher chance of having her breast cancer detected late because insurance doesn?t want to cover the screening, and dying because said company would be more concerned about treating the disease on the cheap rather than to make sure that the patient got the world-class service that Angelina got. Indeed, when it comes to women of color, the news is all the more dire: research presented by The?American Association for Cancer Research?just last month suggested that tumor makeup and methods for treating them may vary by race. This is a reality that makes it harder to treat breast cancer in black women, simply because race-specific research is scarce and black women are woefully absent from mainstream studies that focus mainly on white women. Add poverty, silence and racial inequalities to the mix and it?s no wonder that beast cancer mortality rates for women of color continue to soar.

Mind you, all of this is happening, despite that those pink ribbons are plastered on everything from eggs to panties, and billions of dollars have been collected in the name of?breast cancer research that cancer charities?claim will help prevent and ?find a cure? for the disease.

Wouldn?t it be awesome if those reporting on Angelina Jolie?s radical, preventative double mastectomy decision stopped doing slow pans of her boobs and actually focused on those things?things that actually affect the real-life health experience of the average American working woman? What a concept.

?

This post?originally appeared?on?My Brown Baby. Republished with permission.

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Source: http://www.clutchmagonline.com/2013/05/angelina-jolies-double-mastectomy-highlights-the-inequity-in-breast-cancer-treatment-for-blacks-poor/

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SKorea analyzing NKorea's 4 projectile launches

SEOUL, South Korea (AP) ? South Korea is analyzing whether projectiles North Korea fired into its eastern waters over the weekend are short-range missiles or a new type of artillery the country may be developing, officials said Monday.

North Korea fired what Seoul officials called a short-range projectile Sunday, a day after conducting three similar launches. South Korean officials earlier said the weapons fired on Saturday were guided missiles but later clarified that they may not be missiles, referring to the objects as "projectiles."

"There is a possibility that they are short-range missiles or large-caliber rockets with a similar ballistic trajectory," Defense Ministry spokesman Kim Min-seok told reporters.

Kim said North Korea may be developing such a large-caliber gun and South Korea is taking seriously whatever weapons the country develops because it could attack the South. He said an artillery gun with a bigger caliber will likely have more destructive power.

Officials were trying to find out what exactly the North fired Saturday and Sunday, a ministry official said on condition of anonymity citing department rules.

North Korea routinely test-launches short-range missiles. But the latest launches came amid some tentative signs of easing tension on the Korean Peninsula. Earlier this year, North Korea issued near-daily threats to attack South Korea and the U.S. to protest their annual joint military drills and U.N. sanctions imposed over its February nuclear test.

South Korea called the latest launches a provocation and urged the North to take responsible actions while the U.S. said threats or provocations would only further deepen North Korea's international isolation, while

The North has a variety of missiles but Seoul and Washington don't believe the country has mastered the technology needed to manufacture nuclear warheads that are small and light enough to be placed on a missile capable of reaching the U.S.

The Korean Peninsula officially remains in a state of war because the 1950-53 Korean War ended with an armistice, not a peace treaty.

Source: http://news.yahoo.com/skorea-analyzing-nkoreas-4-projectile-launches-031809748.html

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Cannes helps actors Bejo and Rahim cross borders

CANNES, France (AP) ? The magic and glamour of Cannes can be hard to spot on a day when rain is lashing the palm trees, roiling the gray Mediterranean and pooling in puddles along the Croisette.

But the world's leading film festival can transform careers ? something no one knows that better than actors Berenice Bejo and Tahar Rahim, stars of director Asghar Farhadi's festival entry "The Past."

Bejo shimmered on-screen in Cannes two years ago in "The Artist," her director husband Michel Hazanavicius' vivacious silent homage to Hollywood's Golden Age. It went on to win five Academy Awards, including best picture.

Rahim was the breakout star of the 2009 festival in Jacques Audiard's poetic and brutal prison drama "A Prophet," as a youth growing to manhood behind bars.

Cannes exposure helped boost both performers onto the international stage. While once most European actors could choose between stay at home and playing Hollywood villains, their paths suggest a more globalized movie world.

"It was quite a miracle for me," Bejo said Saturday, as rain drummed remorselessly on a Cannes rooftop lounge. "Two years ago my life changed a little bit in Cannes.

"I don't think Asghar Farhadi would have cast me in this movie if I hadn't done 'The Artist.'"

It's hard to think of two movie styles further apart than the flamboyant artifice of "The Artist" and the anatomically detailed domestic drama of "The Past"

Bejo plays Marie, a harried Frenchwoman with two children, a new boyfriend with a young son, and an Iranian ex who has returned after four years to finalize their divorce. Rahim is her boyfriend Samir, a man with complex family ties of his own.

All the characters are trying to move on ? but the past keeps dragging them back.

Bejo said she did a screen test for Farhadi, then didn't hear from him for a month, so initially thought she hadn't got the part.

"He said to me, I was looking into your face if I could see the doubt," she said. "I guess because he saw me in movies where I was quite positive, quite sunny, quite glamorous. He needed to see if I could show another part of myself ? and I guess he found it."

For Bejo, as for Rahim, working with the Iran director was a dream come true. "The Past" is the first film Farhadi has shot outside his homeland, and the actors say they loved his working methods ? two months of rehearsal to delve into character, break down barriers and forge bonds, followed by a four-month shoot.

With its Iranian director and largely French cast, it's one of several border-hopping movies at Cannes this year. French director Arnaud Desplechin's made-in-America "Jimmy P.: Psychotherapy of a Plains Indian" stars France's Mathieu Amalric and Puerto Rican actor Benicio Del Toro. Another French filmmaker, Guillaume Canet, has a multinational cast including Clive Owen, Billy Crudup and Marion Cotillard in his New York crime drama "Blood Ties."

It's a trend Bejo is happy to embrace.

"In America you have Christoph Waltz, you have Marion Cotillard," she said. "In France we have Italian and Spanish actors. ... I think it's great. We are used to strangers and foreign accents, and it's great that we can see that in our movies now."

Both she and Rahim have been busy since their Cannes breakthroughs. Bejo recently made French heist movie "The Last Diamond" and soon starts filming Hazanavicius' next project, a war movie set in Chechnya.

Rahim's projects include the English-language Roman-era adventure "The Eagle" and another movie appearing at Cannes this year, the nuclear power plant romance "Grand Central."

Coming up, he plays a cop in the French movie "The Informant," and is currently shooting a globe-spanning 1920s-set drama with Turkish-German director Fatih Akin, another pillar of culture-crossing cinema.

Despite the busy international career ? and post-"Prophet" expressions of interest from the United States ? Rahim says Hollywood remains a hard nut to crack for non-Anglophone actors.

"It's not what you expect at first," Rahim said. "You'd like to be with Michael Mann or (directors) like this, but you don't have those parts that easily. Because first you have to speak English, you have to erase your accent."

For now, he's just happy to be back in Cannes, an experience that is easier the second time around.

"The difference is that now I'm not afraid when I come here," he said. "I'm (saying) 'OK I'm going to take every good vibe and keep it.'"

___

Jill Lawless can be reached at http://Twitter.com/JillLawless

Source: http://news.yahoo.com/cannes-helps-actors-bejo-rahim-cross-borders-165726670.html

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Cannes helps actors Bejo and Rahim cross borders

Actress Berenice Bejo poses for portraits at during the 66th international film festival, in Cannes, southern France, Saturday, May 18, 2013. (AP Photo/Laurent Emmanuel)

Actress Berenice Bejo poses for portraits at during the 66th international film festival, in Cannes, southern France, Saturday, May 18, 2013. (AP Photo/Laurent Emmanuel)

Actress Berenice Bejo poses for portraits at during the 66th international film festival, in Cannes, southern France, Saturday, May 18, 2013. (AP Photo/Laurent Emmanuel)

Actor Tahar Rahim arrives under his umbrella during a photo call for the film Grand Central at the 66th international film festival, in Cannes, southern France, Saturday, May 18, 2013. (AP Photo/Lionel Cironneau)

CANNES, France (AP) ? The magic and glamour of Cannes can be hard to spot on a day when rain is lashing the palm trees, roiling the gray Mediterranean and pooling in puddles along the Croisette.

But the world's leading film festival can transform careers ? something no one knows that better than actors Berenice Bejo and Tahar Rahim, stars of director Asghar Farhadi's festival entry "The Past."

Bejo shimmered on-screen in Cannes two years ago in "The Artist," her director husband Michel Hazanavicius' vivacious silent homage to Hollywood's Golden Age. It went on to win five Academy Awards, including best picture.

Rahim was the breakout star of the 2009 festival in Jacques Audiard's poetic and brutal prison drama "A Prophet," as a youth growing to manhood behind bars.

Cannes exposure helped boost both performers onto the international stage. While once most European actors could choose between stay at home and playing Hollywood villains, their paths suggest a more globalized movie world.

"It was quite a miracle for me," Bejo said Saturday, as rain drummed remorselessly on a Cannes rooftop lounge. "Two years ago my life changed a little bit in Cannes.

"I don't think Asghar Farhadi would have cast me in this movie if I hadn't done 'The Artist.'"

It's hard to think of two movie styles further apart than the flamboyant artifice of "The Artist" and the anatomically detailed domestic drama of "The Past"

Bejo plays Marie, a harried Frenchwoman with two children, a new boyfriend with a young son, and an Iranian ex who has returned after four years to finalize their divorce. Rahim is her boyfriend Samir, a man with complex family ties of his own.

All the characters are trying to move on ? but the past keeps dragging them back.

Bejo said she did a screen test for Farhadi, then didn't hear from him for a month, so initially thought she hadn't got the part.

"He said to me, I was looking into your face if I could see the doubt," she said. "I guess because he saw me in movies where I was quite positive, quite sunny, quite glamorous. He needed to see if I could show another part of myself ? and I guess he found it."

For Bejo, as for Rahim, working with the Iran director was a dream come true. "The Past" is the first film Farhadi has shot outside his homeland, and the actors say they loved his working methods ? two months of rehearsal to delve into character, break down barriers and forge bonds, followed by a four-month shoot.

With its Iranian director and largely French cast, it's one of several border-hopping movies at Cannes this year. French director Arnaud Desplechin's made-in-America "Jimmy P.: Psychotherapy of a Plains Indian" stars France's Mathieu Amalric and Puerto Rican actor Benicio Del Toro. Another French filmmaker, Guillaume Canet, has a multinational cast including Clive Owen, Billy Crudup and Marion Cotillard in his New York crime drama "Blood Ties."

It's a trend Bejo is happy to embrace.

"In America you have Christoph Waltz, you have Marion Cotillard," she said. "In France we have Italian and Spanish actors. ... I think it's great. We are used to strangers and foreign accents, and it's great that we can see that in our movies now."

Both she and Rahim have been busy since their Cannes breakthroughs. Bejo recently made French heist movie "The Last Diamond" and soon starts filming Hazanavicius' next project, a war movie set in Chechnya.

Rahim's projects include the English-language Roman-era adventure "The Eagle" and another movie appearing at Cannes this year, the nuclear power plant romance "Grand Central."

Coming up, he plays a cop in the French movie "The Informant," and is currently shooting a globe-spanning 1920s-set drama with Turkish-German director Fatih Akin, another pillar of culture-crossing cinema.

Despite the busy international career ? and post-"Prophet" expressions of interest from the United States ? Rahim says Hollywood remains a hard nut to crack for non-Anglophone actors.

"It's not what you expect at first," Rahim said. "You'd like to be with Michael Mann or (directors) like this, but you don't have those parts that easily. Because first you have to speak English, you have to erase your accent."

For now, he's just happy to be back in Cannes, an experience that is easier the second time around.

"The difference is that now I'm not afraid when I come here," he said. "I'm (saying) 'OK I'm going to take every good vibe and keep it.'"

___

Jill Lawless can be reached at http://Twitter.com/JillLawless

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/4e67281c3f754d0696fbfdee0f3f1469/Article_2013-05-19-France-Cannes-Bejo%20and%20Rahim/id-8bb32ed1c196441a9d2d0e8963c2ab44

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Ben Bernanke Optimistic About Future Innovation In Commencement Address

WASHINGTON, May 18 (Reuters) - U.S. Federal Reserve Chairman Ben Bernanke painted an upbeat picture on Saturday for the potential of innovation to lift living standards, delivering a sweeping look at the last 100 years that included memories of his 1963 South Carolina home.
Bernanke made no reference to monetary policy or the immediate outlook for the U.S. economy in prepared remarks to graduates of Bard College at Simon's Rock, Massachusetts.
But the die-hard baseball fan did manage to work in a reference to one of the sport's greats.
"Is it true, then, as baseball player Yogi Berra said, that the future ain't what it used to be?," the chairman said, noting the existence of serious skepticism that leaps in computers and other information technology would yield the same dramatic boost to growth and living standards as previous episodes of industrial revolution.
"Nobody really knows; as Berra also astutely observed, it's tough to make predictions, especially about the future. But there are some good arguments on the other side of this debate."
Bernanke delivers testimony on the U.S. economy on Wednesday before the congressional Joint Economic Committee.
His words will be parsed for any hint that he favors tapering Fed bond purchases, currently running at an $85 billion monthly pace. But recent U.S. economic data has been mixed, and economists polled by Reuters continue to expect the bond buying to continue until later this year, if not into early 2014.
Bernanke did not tip his hand during his comments to graduates, but he did offer some rare insights into his childhood home in Dillon, South Carolina to illustrate how life has not changed all that much in the last 50 years.
"We had a dishwasher, a washing machine, and a dryer. My family owned a comfortable car with air conditioning and a radio, and the experience of commercial flight was much like today but without the long security lines," he recalled.
There was no internet, but there was a color television "although, I must acknowledge, the colors were garish and there were many fewer channels to choose from."
After pointing out that the so-called IT revolution had not been as transformative as all that, Bernanke then went on to outline several areas where technology may only have scratched the surface in exploiting the potential for change.
He argued that IT and biotechnology have tremendous scope to improve healthcare - which absorbs a considerable amount of U.S. household income and where costs are projected to rise - as well as the potential for the development of cleaner energy.
"As trade and globalization increase the size of the potential market for new products, the possible economic rewards for being first with an innovative product or process are growing rapidly," he said. "In short, both humanity's capacity to innovate and the incentives to innovate are greater today than at any other time in history." (Reporting by Alister Bull; Editing by Tim Dobbyn)

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Source: http://www.huffingtonpost.com/2013/05/18/bernanke-address-future-commencement_n_3298685.html

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Tea party looks to take advantage of moment

DES MOINES, Iowa (AP) ? Is the tea party getting its groove back? Shouts of vindication from around the country suggest the movement's leaders certainly think so.

They say the IRS acknowledgement that it had targeted their groups for extra scrutiny ? a claim that tea party activists had made for years ? is helping pump new energy into the coalition. And they are trying to use that development, along with the ongoing controversy over the Benghazi, Libya, terrorist attacks and the Justice Department's secret seizure of journalists' phone records, to recruit new activists incensed about government overreach.

"This is the defining moment to say 'I told you so,' " said Katrina Pierson, a Dallas-based tea party leader, who traveled to Washington last week as the three political headaches for President Barack Obama unfolded.

Luke Rogonjich, a tea party leader in Phoenix, called the trio of controversies a powerful confluence that bolsters the GOP's case against big government. "Suddenly, there are a lot of things pressing on the dam," said Rogonjich.

It's unclear whether a movement made up of disparate grassroots groups with no central body can take advantage of the moment and leverage it to grow stronger after a sub-par showing in last fall's election had called into question the movement's lasting impact. Republicans and Democrats alike say the tea party runs the risk of going too far in its criticism, which could once again open the door to Democratic efforts to paint it as an extreme arm of the GOP.

"Never underestimate the tea party's ability to overplay its hand," said Democratic strategist Mo Elleithee. "Just because there is universal agreement that the IRS went too far, that should not be misread as acceptance of the tea party's ideology of anger."

At the very least, furor over the IRS devoting special attention to tea party groups claiming tax-exempt status is giving the tea party more visibility than it has had in months, and it's providing a new rallying cry for tea party organizers starting to plot how to influence the 2014 congressional elections. The law allows tax-exempt organizations to lobby and dabble in politics as long as their primary purpose is social welfare.

The tax-agency scandal ? it has led to the acting IRS commissioner's ouster, a criminal investigation and Capitol Hill hearings ? seems to validate the tea party's long-held belief among supporters that government was trampling on them specifically, a claim dismissed by ousted commissioner Steven T. Miller. He has called the targeting "a mistake and not an act of partisanship."

Nevertheless, Sen. Marco Rubio, R-Fla., elected in 2010 with tea party backing, said the IRS scandal "confirms many of the feelings that led to the tea party movement in the first place."

"What's happened here is a reminder of, this is what happens when you expand government," he said in an interview with The Associated Press. "That and the disaster that is Obamacare is going to be a real catalyst in 2014 and beyond."

Tea party activists hope they also can drive support ahead of the elections by stoking widespread suspicions that the Obama administration and State Department are hiding key details about the September 2012 attack in Benghazi, Libya, that killed the U.S. ambassador and three other Americans. The seizure of Associated Press phone records also plays into their argument that government is too intrusive.

Tea party activists have tried to take advantage of the issues that have put some of their central tenets ? limited government and civil liberties ? in the spotlight.

From around the country last week, they headed Washington to hold a news conference on the Capitol steps and meet with members of Congress. Those who stayed home jammed House and Senate phone lines with calls urging congressional action as the IRS saga unfolded. An email from Teaparty.org that was sent to activists proclaimed: "We've worked so hard these past few years and it's paying off! We're witnessing the unraveling of a presidency at an unprecedented rate."

Freedomworks, a national tea party group, spent the week circulating petitions for congressional hearings and encouraging leaders of local groups who believe they have been targeted by the IRS to include their story on a national database to build the case against the agency.

"Perhaps all this attention will break something loose," said Jim Chiodo, an activist from Holland, Mich.

It wasn't long ago that the tea party was the hot new political kid on the block, bursting onto the national scene during the contentious summer debate over health care in 2009. Over the next few years, the loosely affiliated conservatives and civil libertarians would leave their mark on the 2010 elections by helping Republican candidates win Senate races in Florida, Kentucky, Utah and Wisconsin and scores of House races.

Those victories resulted in House and Senate Republican caucuses getting pushed to the right in legislative battles, making life difficult for Obama and his Democrats in an era of divided government.

But the movement's success was muted in 2012 when Republicans nominated the establishment-backed Mitt Romney for president, though he did little to inspire the tea party. He lost, and so did many tea party-backed House and Senate candidates.

Now, tea party activists say they are emboldened and won't be afraid to recruit candidates to run in Republican primaries against incumbents who appear to go easy on the Obama administration, particularly in light of the IRS scandal.

"It's one of those issues we should just raise hell about," said Nashville Tea Party leader Ben Cunningham.

Some say they're now even more suspicious of government than before.

"I personally feel so vindicated," said Mark Falzon, a New Jersey tea party leader. But he added: "What's scaring me now is what's going on below the water line that we're not seeing."

Republicans say that the tea party will have an opportunity come 2014 to make its mark again, particularly with Obama not at the top of the ticket. Also, they say that with Obama's health care law going into effect and with the slew of latest controversies, they now have concrete issues to point to when arguing against government overreach.

"Suddenly, this is a very real demonstration of too much power ceded to government bureaucrats," said Matt Kibbe, president of Freedomworks. "This is no longer theoretical."

___

Associated Press writers Steve Peoples in Boston and Bill Barrow in Atlanta contributed to this report.

Follow Thomas Beaumont on Twitter at http://twitter.com/Tom_Beaumont

Source: http://news.yahoo.com/tea-party-looks-advantage-moment-131128674.html

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Friday random ten: The city never sleeps, part 6 (Offthekuff)

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PFT: Jets' Goodson gets five gun and drug charges

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With all the criticism Mike Vick has absorbed during his NFL career, you?d think he?d be used to it by now.

He apparently isn?t.

Earlier this week, Vick got a little testy during an interview with Mike Missanelli of 97.5 The Fanatic in Philadelphia on the topic of those who say he doesn?t read defenses quickly enough, and that he holds onto the ball for too long.

?I?m really tempted right now to just say no comment to that because like I said a second ago, you don?t last 12 years in the NFL not being able to read the defense,? Vick said, via Sheil Kapadia of PhillyMag.com.? ?Those people who are talking and saying that are just ignorant, and they know nothing about football.? Unless they turn on the film and watch my game and see what goes on, then they?ll replace those comments with the right comments.?

Missanelli pointed out that critics who know football have made those claims.? ?But it?s incorrect,? Vick said.? ?Without getting sensitive about it, it?s incorrect.? So I?d rather not talk about it.?

We?d hate to hear what Vick would say if he were sensitive about it.? (Actually, we?d probably love to hear it.)

Vick attributes the perception of holding the ball too long to the West Coast offense the Eagles ran under Andy Reid.? ?We had a lot of deeper throws last year, which required more time,? Vick said.? ?It?s just a big difference.?

New coach Chip Kelly?s system will result in quicker throws; if Vick can make them, he?ll likely be the starter.? Kelly also has taught Vick something unrelated to throwing the ball ? how to run with it, without fumbling.

?The other day, I broke out in the pocket, and the first thing Chip told me was to tuck the football,? Vick said.? ?So I showed him how I was running with it, and he looked at it and he knocked the ball right out of my hands.? And he was like, ?Hold it like this.?? And what he told me felt comfortable.? I had a tighter grip on the football. That should secure that problem as long as I work on it.?

It remains to be seen whether Vick will undergo a Tiki-style transformation when it comes to ball security.? But if he can get rid of the ball when he needs to and keep possession of it when he has to, Vick could have a big year in 2013.

Source: http://profootballtalk.nbcsports.com/2013/05/17/five-gun-and-drug-charges-for-mike-goodson/related/

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Caleb "Kai" McGillvary: Arrested For Murder

Source: http://www.thehollywoodgossip.com/2013/05/caleb-kai-mcgillvary-arrested-for-murder/

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No new EA games in development for Wii U, company reveals

Earlier this month, EA DICE's Johan Andersson dropped a major bomb: Frostbite 3 won't be ported to the Wii U. The news meant that the company's next-gen franchises were doomed to skip the console: No Battlefield 4, no Star Wars games, no Mass Effect spin-off. Now, EA's Jeff Brown is saying the same fate applies to all of the company's titles, telling Kotaku that the company has "no games in development for the Wii U currently."

The confirmation isn't too surprising, but it is a crushing blow to fans who were banking on EA's 2011 promise to support the console. Although Brown wouldn't rule out the possibility of the company returning to the platform, Kotaku was told that EA feels it fulfilled that promise by releasing games like Mass Effect 3 and Need For Speed Most Wanted during the Wii U's formative months. Despite the loss of third party support, Nintendo has previously urged gamers to be patient. After all, E3 is just around the corner.

Filed under: Gaming

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Source: Kotaku

Source: http://www.engadget.com/2013/05/16/no-new-ea-games-in-development-for-wii-u/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget

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Stacking 2-D materials produces surprising results

May 16, 2013 ? New experiments reveal previously unseen effects, could lead to new kinds of electronics and optical devices. Graphene has dazzled scientists, ever since its discovery more than a decade ago, with its unequalled electronic properties, its strength and its light weight. But one long-sought goal has proved elusive: how to engineer into graphene a property called a band gap, which would be necessary to use the material to make transistors and other electronic devices.

Now, new findings by researchers at MIT are a major step toward making graphene with this coveted property. The work could also lead to revisions in some theoretical predictions in graphene physics.

The new technique involves placing a sheet of graphene -- a carbon-based material whose structure is just one atom thick -- on top of hexagonal boron nitride, another one-atom-thick material with similar properties. The resulting material shares graphene's amazing ability to conduct electrons, while adding the band gap necessary to form transistors and other semiconductor devices.

The work is described in a paper in the journal Science co-authored by Pablo Jarillo-Herrero, the Mitsui Career Development Assistant Professor of Physics at MIT, Professor of Physics Ray Ashoori, and 10 others.

"By combining two materials," Jarillo-Herrero says, "we created a hybrid material that has different properties than either of the two."

Graphene is an extremely good conductor of electrons, while boron nitride is a good insulator, blocking the passage of electrons. "We made a high-quality semiconductor by putting them together," Jarillo-Herrero explains. Semiconductors, which can switch between conducting and insulating states, are the basis for all modern electronics.

To make the hybrid material work, the researchers had to align, with near perfection, the atomic lattices of the two materials, which both consist of a series of hexagons. The size of the hexagons (known as the lattice constant) in the two materials is almost the same, but not quite: Those in boron nitride are 1.8 percent larger. So while it is possible to line the hexagons up almost perfectly in one place, over a larger area the pattern goes in and out of register.

At this point, the researchers say they must rely on chance to get the angular alignment for the desired electronic properties in the resulting stack. However, the alignment turns out to be correct about one time out of 15, they say.

"The qualities of the boron nitride bleed over into the graphene," Ashoori says. But what's most "spectacular," he adds, is that the properties of the resulting semiconductor can be "tuned" by just slightly rotating one sheet relative to the other, allowing for a spectrum of materials with varied electronic characteristics.

Others have made graphene into a semiconductor by etching the sheets into narrow ribbons, Ashoori says, but such an approach substantially degrades graphene's electrical properties. By contrast, the new method appears to produce no such degradation.

The band gap created so far in the material is smaller than that needed for practical electronic devices; finding ways of increasing it will require further work, the researchers say.

"If ? a large band gap could be engineered, it could have applications in all of digital electronics," Jarillo-Herrero says. But even at its present level, he adds, this approach could be applied to some optoelectronic applications, such as photodetectors.

The results "surprised us pleasantly," Ashoori says, and will require some explanation by theorists. Because of the difference in lattice constants of the two materials, the researchers had predicted that the hybrid's properties would vary from place to place. Instead, they found a constant, and unexpectedly large, band gap across the whole surface.

In addition, Jarillo-Herrero says, the magnitude of the change in electrical properties produced by putting the two materials together "is much larger than theory predicts."

The MIT team also observed an interesting new physical phenomenon. When exposed to a magnetic field, the material exhibits fractal properties -- known as a Hofstadter butterfly energy spectrum -- that were described decades ago by theorists, but thought impossible in the real world. There is intense research in this area; two other research groups also report on these Hofstadter butterfly effects this week in the journal Nature.

The research included postdocs Ben Hunt and Andrea Young and graduate student Javier Sanchez-Yamagishi, as well as six other researchers from the University of Arizona, the National Institute for Materials Science in Tsukuba, Japan, and Tohoku University in Japan. The work was funded by the U.S. Department of Energy, the Gordon and Betty Moore Foundation and the National Science Foundation.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/~3/HeXraUY5CA0/130516182025.htm

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New model to recommend media content according to your preferences

May 13, 2013 ? Researchers at the Technical University of Madrid (Universidad Polit?cnica de Madrid) have developed a model capable to recommend audiovisual content to each user based on their own media consumption and intrinsic features of images and videos.

The recommendations generated by the new model, developed by the Visual Telecommunications Application Group (G@TV) of the Higher Technical School of Telecommunications Engineering of the UPM, can be produced without prompting the user and without bothering them when they are watching and enjoying the content. The system has been tested with over 70,000 users and a million of content evaluations. According to the findings, the model has the highest precision so far.

The vast proliferation of Internet content, television and other media can prevent user from obtaining those contents which are interesting to them. In order to ease this selection, researchers at the UPM in collaboration with leading media companies, have developed a model that allows them to recommend highly reliable content. The testing was carried out with a high number of users in different scenarios such as the Olympic Games, online game catalogs or digital interactive television.

The traditional recommender system usually use: semantic techniques which result in products defined by themes, similar tags to the user interests, algorithms that use collective intelligence of a large set of user, in a way that this traditional system recommends themes that suit other people with similar preferences.

From this knowledge state, an applied model of multimedia content that goes beyond this paradigm has been developed, and it incorporates other features of whose influence, the user is not always aware and because of that reason has not been used so far in these types of systems.

Therefore, researchers at the UPM have analyzed in depth the audiovisual features that can be influential for users and they proved that some of these features that determine aesthetic trends and usually go unnoticed can be decisive when defining the user tastes.

For example, researchers proved that in a movie, the relative information to the narrative rhythm (shot length, scenes and sequences), the movements (camera or frame content) or the image nature (brightness, color, texture, information quantity) is relevant when cataloguing the preferences of each piece of information. Analogously to the movies, the researchers have analyzed images using a subset of descriptors considered in the case of video.

In order to verify this model, researchers used a database of 70,000 users and a million of reviews in a set of 200 movies whose features were previously extracted.

These descriptors, once they are standardized, processed and generated adequate statistical data, allow researchers to formally characterize the contents and to find the influence degree on each user as well as their preference conditions.

It is important to highlight that the recommendation does not feed from declared explicit preferences by the user, but these preferences are dynamically changing according to their consumption trends. To this effect, researchers created a probabilistic model that infers the patterns by using artificial intelligence techniques. The model were validated by doing tests with real users whose television consumption were assessed for a while and contrasted with surveys

After statistical analysis of the results and their relationship with the diverse content categories, they proved that these implicit methods that use consumption data are more reliable than the data from explicit ratings because they used objective measures and allowed them to remove social and cultural conditioning that affect some contents.

Once the user preferences and the nature of content are set, the system is able to generate new recommendations by exploiting this data. To do this, it was important to take into consideration the conclusions drawn from the influence of the aesthetic and the need to create personalized statistic systems in a way that the criteria for recommendation can change for each user according to the influence of these features.

As this study has proved, some users show a special sensitivity to certain features, especially the ones related to mounting rhythm or the camera motion. The recommendation algorithm justifies its success by using information that the user is not aware that he knows, but it is able to determine a special aesthetic affinity with specific audiovisual contents.

The model was developed and validated in diverse real systems based on research on European projects (ARENA), national projects and applied to various scenarios: generalist television scenario (3SME), Web scenario applied to search engines (Buscamedia), TV and web hybrid scenario applied to the Olympic Games, and scenarios of multiplatform audiovisual consumption (Mireia).

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_technology/~3/P-9aP7P-QN8/130513083138.htm

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Hipstamatic Oggl app coming to Windows Phone 8, launching with Nokia's Lumia 925

Hipstamatic's Oggl app and sharing service is coming to Windows Phone 8, we learned at Nokia's Lumia 925 launch event. We didn't get to play around in the app -- the WP8 UI we saw on stage was but a preview, as the native app (read: not a port) is still in development. We're assured Oggl will be ready by the time the new Lumia launches, but it won't be a Nokia exclusive, so anyone with a WP8 handset will be able to use the food filter and (over)share their lunch choice on Facebook, Twitter, Pinterest or Instagram. We don't know whether the regular dollar-per-month (or $10 per year) service fee will apply, but we're told you'll be able to swap cash for more filters and effects on top of the base selection.

Filed under: Cellphones, Software, Mobile

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Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/TcI6_fLXLhQ/

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Obama Tells Harvey Weinstein, Justin Timberlake to Blame Rush Limbaugh

President Obama told donors like Jessica Biel, Justin Timberlake (who was wearing hipster glasses), and Tommy Hilfiger that Washington gridlock is pretty much Rush Limbaugh's fault on Monday evening at a fundraiser at Harvey Weinstein's house in New York's Greenwich Village. Obama admitted that his theory ? that after the 2012 election, the Republican "fever" would break, and they'd decide to co-sign some of his agenda ? was wrong. "My thinking was when we beat them in 2012 that might break the fever, and it?s not quite broken yet," Obama said, according to the White House pool report. This is because of a certain corpulent radio host. "I genuinely believe there are Republicans out there who would like to work with us but they?re fearful of their base and they?re concerned about what Rush Limbaugh might say about them. And as a consequence we get the kind of gridlock that makes people cynical about government."

RELATED: When Anti-Government Becomes Anti-Business

In June 2012, Obama had predicted that being a lame duck would actually be a perk. He told donors:

"I believe that if we're successful in this election, when we're successful in this election, that the fever may break, because there's a tradition in the Republican Party of more common sense than that,...

My hope, my expectation, is that after the election, now that it turns out that the goal of beating Obama doesn't make much sense because I'm not running again, that we can start getting some cooperation again."

And if Republicans refuse to cooperate? Well, unlike the president, they do face reelection. Obama suggested he would crush them in the midterms. "If there are folks who are more interested in winning elections than they are thinking about the next generation then I want to make sure there are consequences to that."

Source: http://news.yahoo.com/obama-tells-harvey-weinstein-justin-timberlake-blame-rush-212843334.html

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