Tuesday, April 30, 2013

Watch A House Of Cards Spoof With Kevin Spacey And Obama Make A BuzzFeed Pot Joke

Screen shot 2013-04-28 at 2.49.07 AMNetflix’s “House of Cards” took center stage at the annual White House Correspondents Dinner, with an official spoof about the back room jockeying over seat assignments at the coveted press dinner. The clip even gave a big nod to BuzzFeed’s alternative BBQ held during the actual dinner. Despite their admirable popularity, BuzzFeed is not a member of the White House Correspondents Association and didn’t get a table. “A colonoscopy would be cooler than that dinner,” BuzzFeed Editor in Chief, Ben Smith, says to Kevin Spacey’s character. BuzzFeed even got a shoutout from the president himself during his annual stand-up routine: “I remember when BuzzFeed was just something I did in college around 2 a.m.,” said the president in an obvious reference to his pot-smoking college days. Watch the whole routine below: The “House Of Cards” cast was out in full force at DC’s stargazing weekend. There are a lot of?entertainers who stroll into town, but Kevin Spacey was the uber-celebrity. Even at Tammy Haddad’s famous Garden Brunch, the A-list crowd couldn’t help but turn heads upon Spacey’s arrival. On top of viewers, “House of Cards” has made Netflix the talk of the town among policymakers, which could be worth more political capital than the $1 million they spent on lobbying last year. It seemed like everyone was happy to talk with Netflix’s representatives, even just as an excuse to dish about the drama and get some inside details about Capitol Hill’s new favorite?pastime. Interestingly enough, Netflix’s other original series, “Hemlock Grove,” may be off to a better start?in terms of viewers, but doesn’t seem to have the same buzz. An obvious but valuable lesson: influential fans are worth a lot.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/Bc-xUn9ca9U/

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Monday, April 29, 2013

Celts top Knicks 97-90 in OT, avoid playoff sweep

BOSTON (AP) ? Jason Terry's nose still hurt. He wasn't about to let his pride suffer as well.

Two days after being smacked by J.R. Smith's elbow, the guard the Boston Celtics count on for his shooting scored their last nine points and kept their season going.

The Celtics beat the Knicks 97-90 in overtime on Sunday to avoid a first-round sweep and force a fifth game in New York on Wednesday night. Avoiding elimination provided all the motivation Terry needed.

"It wasn't really the elbow," he said. "It was more (like) this is it. I mean, the season's over. You can leave it all out here tonight and go home for a long summer or you can live to play another day."

But, he conceded, his nose "still hurts right now. As long as I feel that, I guess I'll be thinking about it."

The NBA suspended Smith for the game, and the Knicks could have used his shooting. Carmelo Anthony scored 36 points and Raymond Felton picked up the slack with 27, but New York made just 28.9 percent of its shots in the first half as Boston took a 54-35 lead.

"J.R. is a big piece of what we do, but he wasn't here," Knicks coach Mike Woodson said, "so I'm not using that as an excuse."

New York had tied the game 84-84 after trailing by 20 points early in the third quarter. It was 88-all before the Celtics regained control and took the lead for good on a 3-pointer by Terry. Anthony hit a short jumper, but Terry connected on a 15-footer with 50 seconds remaining for a 93-90 lead.

After Anthony, who shot 10 for 35 for the game, missed a 3-pointer with 21 seconds to go, Terry was fouled by Steve Novak and made both free throws. He added a layup to close out the game.

But the Celtics still have a huge deficit in trying to become the first team to win after trailing a series 3-0 in the NBA playoffs. The Knicks are trying to win their first playoff series in 13 years.

"We have to be confident going back home," Anthony said. "We were confident here today."

Paul Pierce led the Celtics with 29 points, Jeff Green added 26 and Terry finished with 18.

With leaders such as Pierce and Kevin Garnett, the Celtics have "tremendous" pride, Terry said. "Getting swept is something that no man that's been in this league that long wants to do. It's disheartening.

"Now we have to go into a hostile environment and they're going to be trying to get it over with. They don't want to come back here, but we do."

The Celtics showed renewed energy early after being held below 80 points in each of the first three games. They led 59-39 three minutes into the third quarter before their recent second-half woes returned.

In previous first halves, they scored just 25 points in Game 1 and 23 in Game 2. On Sunday, they were outscored 30-14 in the third quarter and led just 68-65 heading into the fourth.

"Good teams are going to make those runs," said Garnett, who had 13 points, 17 rebounds and six assists for Boston. "It's deflating, but we kept fighting. We found a way to get over the hump."

Boston held a 65-51 lead when Anthony went to the bench with 3:35 remaining. The Knicks outscored the Celtics 14-3 the rest of the way behind 11 points from Felton and a 3-pointer from Iman Shumpert. Felton finished with 16 points in the quarter.

"He was huge in this game for us," Kenyon Martin said. "Especially missing J.R., we needed someone else to make shots for us and he did that."

The Knicks played the first half as if they had taken shooting lessons from the Celtics. New York hit just 11 of 38 shots in the half after Boston made only 39.5 percent of its total attempts in the first three games.

The Celtics found their range from the start and connected on 51.3 percent (20 for 39) in the half.

"We established our defense and we made shots," Pierce said. "I thought it really gave us confidence when we got out to the fast start because our offense has really been struggling."

But the Knicks still have a big advantage with three possible chances to get the one win they need to advance to the second round. They were swept in the opening round by the Celtics in 2011 then lost to the Miami Heat in five games in 2012 after dropping the first three games.

This year, the Knicks won the first two games at home then took Game 3 in Boston 90-76 on Friday night.

"We did our job when we came here. We got us a win," Felton said. "That was our goal."

And now the Knicks get Smith back.

"We know how dangerous he is," Terry said. "He's going to come out, obviously, tough, aggressive, looking to be a spark for them but we're just resilient."

The Celtics need to be as they try to get to a sixth game in Boston on Friday night.

"This is the first time that we really came out with fire in our eyes," Terry said. "Every game from here on out is Game 7 for us."

Notes: Boston had just three offensive rebounds while the Knicks grabbed 16. ... The Celtics have been swept six times in the 112 playoff series in their history. ... The Knicks were 19-2 in their previous 21 games. The Celtics were 5-14 in their previous 19. ... For the Celtics, Garnett, Green and Brandon Bass each had four fouls five minutes into the third quarter. Bass committed his fifth with 5:10 left in the period and fouled out with 4:27 to go in the game. ... Anthony committed his fourth with 4:08 remaining in the third.

Source: http://news.yahoo.com/celts-top-knicks-97-90-ot-avoid-playoff-202225961.html

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efemr Is Snapchat For Twitter Which Can Only End Well

So yeah, efemr is a web app that scrubs tweets after the amount of time you hashtag. Want a tweet gone after five minutes? #5m. Two hours? #2h. You get the gist. More »
    


Source: http://feeds.gawker.com/~r/gizmodo/full/~3/J5jJAarOxd4/efemr-is-snapchat-for-twitter-which-can-only-end-well

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Justin Bieber Wants The World To Know He?s Back With Selena Gomez

Justin Bieber Wants The World To Know He’s Back With Selena Gomez

Justin Bieber posts old photo with Selena GomezJustin Bieber has confirmed that he and Selena Gomez are very much back together. The teen singer uploaded a picture to his Instagram showing him shirtless (of course) with Selena cuddling up to him from behind. Justin added the caption, “You’ve been makin’ music for too long baby come cuddle me – her”. The photo ...

Justin Bieber Wants The World To Know He’s Back With Selena Gomez Stupid Celebrities Gossip Stupid Celebrities Gossip News

Source: http://stupidcelebrities.net/2013/04/justin-bieber-wants-the-world-to-know-hes-back-with-selena-gomez/

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Sunday, April 28, 2013

NATO: 4 dead in Afghanistan plane crash

* Lewandowski scored four goals against Real Madrid * Poland international refuses contract extension (adds details, background) BERLIN, April 26 (Reuters) - Bayern Munich and Borussia Dortmund striker Robert Lewandowski have not signed a deal, the newly-crowned champions said on Friday, shooting down widespread speculation of another imminent surprise transfer. "Bayern, as opposed to some reports, has no contract with Robert Lewandowski," the Bavarian Champions League semi-finalists said in a brief statement. ...

Source: http://news.yahoo.com/4-members-die-afghanistan-plane-crash-163748705.html

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Saturday, April 27, 2013

Stocks sputter on tepid US economic growth

NEW YORK (AP) ? The stock market sputtered Friday after the U.S. economy didn't grow as much as hoped. Neither did earnings from a handful of big companies.

Economic growth accelerated to a 2.5 percent annual rate in the first three months of the year, the government said. But it was below the 3.1 percent forecast by economists.

The shortfall reinforced the perception that the economy is grinding, rather than charging, ahead. Investors have also been troubled by reports in the last month of weaker hiring, slower manufacturing and a drop in factory orders.

"There are some concerns as we head into the summer," said JJ Kinahan, chief derivatives strategist for TD Ameritrade. "In the last three weeks, we've have seen numbers that weren't exactly what you'd love to see."

Corporate earnings this week have also contained worrisome signs. Many companies missed revenue forecasts from financial analysts, even as they reported higher quarterly profits. For example, Goodyear Tire slipped 3.4 percent to $12.49 Friday after revenue fell short of analysts' estimates, hurt by lower global tire sales.

Of the companies that have reported earnings so far, 70 percent have exceeded Wall Street's expectations, compared with a 10-year average of 62 percent, according to S&P Capital IQ. However, 43 percent have missed analysts' revenue estimates.

The S&P 500 index fell three points to 1,583, or 0.2 percent, paring its gain for the week to 1.8 percent.

The Dow, however, was up 11 points, or 0.1 percent, at 14,717, lifted by Chevron's stock. Profit for the U.S. oil company beat expectations of financial analysts in the first quarter, pushing shares up $1.29, or 1 percent, to $119.80 on Friday.

The Dow index is 1.2 percent higher this week.

The Nasdaq composite was down 20 points at 3,269, a decline of 0.6 percent. The index is still 2 percent higher this week.

The tech-heavy index has lagged both the Dow and the S&P 500 this year, but led the way higher this week, boosted by Microsoft. The software giant, which makes up 5.3 percent of the Nasdaq, is on track to record its biggest weekly gain since January last year, after reporting earnings April 19 that beat Wall Street expectations and revealing an aggressive push into the computer tablet market.

Even Apple, the largest stock in the Nasdaq, had a good week, advancing 5.8 percent to $413.20, despite posting a decline in quarterly profit Tuesday. Apple accounts for 7.6 percent of the index's value and the weekly gain was its biggest since November.

Among big names that investors were focusing on Friday, Amazon.com fell 7 percent to $255.20 after the company warned of a possible loss in the current quarter. And in the first quarter, the online retailer reported lower income fell as it continued to spend heavily on the rights to digital content. Expedia fell 11 percent to $58.15 after the online travel company's reported a quarterly loss.

Homebuilder D.R. Horton surged 8 percent to $26.48 its income nearly tripled thanks to a continuing recovery the housing market. The results were handily beat the forecasts of financial analysts who follow the company.

J.C. Penney jumped 8.5 percent to $16.52 after the billionaire financier George Soros disclosed that he had taken a 7.9 percent stake in the struggling company.

In government bond trading, the yield on the 10-year Treasury note fell to 1.67 percent from 1.71 percent, its lowest rate of the year.

Source: http://news.yahoo.com/stocks-sputter-tepid-us-economic-growth-184133429.html

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Google: If you distribute your app through Google Play, you'll update it through Google Play

Facebook update

Facebook had been confusing users with unsolicited 'beta' updates outside the app store

Google recently changed its Google Play Developer Program Policies to prevent applications from using Google's app store and then going off the reservation for updates. 

The change likely is in direct response to Facebook doing that very thing under the guise of a "beta" program. While there might be any malicious intent there, it is a bit specious, and confusing to consumers.

The new policy language reads thusly:

An app downloaded from Google Play may not modify, replace or update its own APK binary code using any method other than Google Play's update mechanism.

That should still leave room for applications that are distributed through Google Play to simultaneously have beta tracks outside of Google's app store, so long as those trains stay on their proper tracks. 

Source: Google Play Developer Content Policy; via The Verge

    


Source: http://feedproxy.google.com/~r/androidcentral/~3/Sip0FgWrnOs/story01.htm

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Lawyer: Jailed pair shocked by Boston bomb claims

BOSTON (AP) ? Two college friends of Boston Marathon bombing suspect Dzhokhar Tsarnaev who were jailed by immigration authorities the day after his capture had nothing to do with the deadly attack and had seen no hints that he harbored any violent thoughts or terrorist sympathies, a lawyer for one of them said Friday.

Azamat Tazhayakov and Dias Kadyrbayev, who are from Kazakhstan, were classmates with Tsarnaev at the University of Massachusetts Dartmouth. They appeared alongside him in a recent photograph of a group of young men visiting New York City's Times Square. They were detained April 20 after being questioned in connection with the bombing, which had killed three people and injured more than 260 others a few days earlier.

"These kids are just as shocked and horrified about what happened as everyone else," Kadyrbayev's lawyer, Robert Stahl, said in a phone interview. "They can't even fathom something like this from a kid who seemed to be a typical young college student."

Tazhayakov and Kadyrbayev have been interviewed at length, twice, by FBI agents and have cooperated fully, said Stahl, a former federal prosecutor. They are not suspects but are being held for violating their student visas by not regularly attending classes, Stahl said. They are being detained at a county jail in Boston.

The Kazakh Foreign Ministry said Monday night that U.S. authorities came across the two while searching for "possible links and contacts" to Tsarnaev, a sophomore at the university. U.S. immigration officials have declined to discuss the reasons why the men were detained.

John Hoey, an assistant chancellor at UMass Dartmouth, said Kadyrbayev is no longer enrolled; he was last a student in the fall. Tazhayakov is enrolled.

The pair had lived at an off-campus apartment in New Bedford, about 60 miles south of Boston, and got around in a car registered to Kadyrbayev with a souvenir plate that says "Terrorista (hash)1." The car was pictured on Tsarnaev's Twitter feed in March.

That plate was just a joke gift from some of Kadyrbayev's friends, meant to invoke his penchant for late-night partying rather than his political sentiments, Stahl said.

"It's such a silly thing. Bad timing," Stahl said. "His desire is to be released so he can return home. He would like to go home to the comfort of his family. You can imagine being 19 years old and having SWAT teams break down your door. It's a terrible situation."

Stahl said the young Kazakhs didn't see Tsarnaev in the days before or after the April 15 bombing.

Tazhayakov's lawyer, Thomas Kirsch, did not immediately return a phone call or an email message Friday evening.

Tsarnaev, who was captured hiding in a tarp-covered boat in a suburban Boston yard after a lengthy manhunt, is in federal custody. His older brother, the other identified suspect in the bombing, died after a shootout with police. Their mother has said the allegations against them are lies.

___

Associated Press writer Erika Niedowski contributed to this report.

Source: http://news.yahoo.com/lawyer-jailed-pair-shocked-boston-bomb-claims-014232408.html

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Friday, April 26, 2013

Watch How Retweets Ripple Out Through the Internet

A quick tweet can blast through Twitter like wildfire. All it takes is a click of a button and anyone can help push that 140 character shout just a little further through cyberspace, until everybody knows. This is what it looks like when that happens. More »
    


Source: http://feeds.gawker.com/~r/gizmodo/full/~3/_9ra1TAX5N4/watch-how-retweets-ripple-out-through-the-internet

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Zach Braff Introduces Kickstarter For Garden State Follow-Up: Wish I Was Here

Source: http://www.thehollywoodgossip.com/2013/04/zach-braff-introduces-kickstarter-for-garden-state-follow-up-wis/

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Breakingviews: Debt debate in need of upgrade

(The author is a Reuters Breakingviews columnist. The opinions expressed are his own.)

By Edward Hadas

LONDON, April 24 (Reuters Breakingviews) - In retrospect, last week's debunking of one of the key conclusions of Kenneth Rogoff and Carmen Reinhart about government debt looks inevitable. The whole story, from the initial lavish praise for the Harvard professors to the current harsh criticism, is a sad reminder of the power of ideology in the angry debate over economic policy.

In 2011, the two eminent professors claimed to show a tipping point for government borrowing. If the debt amounted to more than 90 percent of GDP, the GDP growth rate was typically much slower than in more fiscally prudent countries. When Thomas Herndon, a mere graduate student at the University of Massachusetts, redid the maths this year, he also found a correlation between higher government debt and slower growth. But there was nothing remotely like a tipping point.

The new paper was a blow to the politicians who relied on the Rogoff-Reinhart 90 percent line to support fiscal "austerity" (smaller government budget deficits). But they were always foolish to trust a study which drew a universal conclusion from a small sample of countries in vastly different situations.

Insofar as the Rogoff-Reinhart research had any value, it merely restated something that should have been obvious anyway: unsatisfactory economic performance and excessive government borrowing generally go together.

The connection is social, not financial. In societies that can get things done, respond well to challenges, compromise when necessary and do not spend more than is affordable, the government is likely to be fiscally competent and the economy is likely to be effective. Conversely, if the society is deeply divided, the economy is probably enfeebled and there is a high chance of a political deficit - to stay in power governments then need to spend more than they take in taxes.

The statistical analysis supports this correlation, but it's really common sense, like the relationship between obesity and bad eating habits. The social analysis should serve as a warning to the austerity crowd. A balanced government budget is not going to restore an ill economy to good health or unify a divided society. The political deficit and social divisions will just appear elsewhere, perhaps taking the form of greater political instability.

The austerity-promoters would also do well to admit that large quantities of government borrowing and spending can be helpful, for example during and after wars, natural catastrophes and recessions. And the choice to raise funds by borrowing rather than through increased taxes is at least as much political as economic.

After all, debt and taxes are interchangeable in terms of cash flow, as long as taxpayers hold all government debt. The two financing mechanisms can be integrated, so the higher taxes needed to pay for higher debt loads are exactly compensated by the interest income and principal repayments taxpayers receive from the government. Government borrowing does not necessarily "crowd out" other economic activity any more, or any less, than an equivalent quantity of tax revenue.

It's clear that Rogoff-Reinhart has methodological and theoretical problems, but their opponents, the advocates of "stimulus" (larger deficits), should be careful about gloating.

Pro-deficit economists cannot counter Rogoff-Reinhart with a persuasive historical study of their own, because peacetime deficits have almost never been as high a share of GDP as they are now. Deficit-doves often cite the U.S. Great Depression, but even if government spending reversed the 27 percent decline in GDP between 1929 and 1933, the precedent is not clearly relevant to the recent 4 percent decline.

The pro-deficit camp does have a plausible theory. Government deficit spending can make up for activity unnecessarily lost through an external shock, for example the 2008 financial crisis. But the stimulus crowd should admit the theory's limits. The more the government spends, the more likely it is to spend foolishly, especially when the government suffers from the sort of large political deficit common in easily shocked economies. Spending financed by borrowing, or by newly created money, is no less likely to be wasted than spending financed by taxes.

Why did the implausible 90 percent Rogoff-Reinhart debt threshold ever gain credence? And why do stimulus defenders ignore the dangers of ever larger governments? Because the austerity-stimulus debate is ultimately a battle in the ideological war over the proper role of government in society. Both sides fervently believe they are right: governments need to be restrained or governments need to be let loose. Both find supporting evidence everywhere and contrary evidence nowhere.

No facts will decide this argument, but the current mix of policies is particularly hard to interpret. For austerity fans, deficits are too high to count as truly austere; for their opponents they are too low to count as genuine stimulus. There will certainly be enough evidence to show that the other side's approach has failed. And it's a safe bet that the next Thomas Herndon will find easy pickings.

(Editing by David Evans and Sarah Bailey)

Source: http://news.yahoo.com/breakingviews-debt-debate-upgrade-164756899--business.html

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PFT: Team-by-team NFL draft needs

As the 2013 NFL draft approaches, we?ll run down each team?s needs. New teams will be posted twice a day in the order of the teams? first pick in the draft, starting with the Chiefs on April 8 and ending with the Redskins and Seahawks (the two teams that traded away their first-round picks) on April 23.

You can find all of our team needs posts here.

1. Kansas City Chiefs (April 8).

2. Jacksonville Jaguars (April 8).

3. Oakland Raiders (April 9).

4. Philadelphia Eagles (April 9).

5. Detroit Lions (April 10).

6. Cleveland Browns (April 10).

7. Arizona Cardinals (April 11).

8. Buffalo Bills (April 11).

9. New York Jets (April 12).

10. Tennessee Titans (April 12).

11. San Diego Chargers (April 13).

12. Miami Dolphins (April 13).

13. Tampa Bay Buccaneers (April 14).

14. Carolina Panthers (April 14).

15. New Orleans Saints (April 15).

16. St. Louis Rams (April 15).

17. Pittsburgh Steelers (April 16).

18. Dallas Cowboys (April 16).

19. New York Giants (April 17).

20. Chicago Bears (April 17).

21. Cincinnati Bengals (April 18).

22. Minnesota Vikings (April 18).

23. Indianapolis Colts (April 19).

24. Green Bay Packers (April 19).

25. Houston Texans (April 20).

26. Denver Broncos (April 20).

27. New England Patriots (April 21).

28. Atlanta Falcons (April 21).

29. San Francisco 49ers (April 22).

30. Baltimore Ravens (April 22).

31. Washington Redskins (April 23).

32. Seattle Seahawks (April 23).

Source: http://profootballtalk.nbcsports.com/2013/04/09/team-by-team-draft-needs-2/related/

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Thursday, April 25, 2013

Discovery, TLC apps for iPad add 'Plus' second screen experience

Discovery, TLC apps for iPad add 'Plus' second screen experience

While Discovery and TLC have offered some show-specific second screen content before, the latest updates to their apps put a new spin on it. Referred to as Discovery Plus and TLC Plus, the new features are currently iPad-only (coming soon to iPhone), bringing behind the scenes info, photos, quizzes and more for shows on the networks, ready to audio sync with live broadcasts or DVR viewing. Other changes in version 2.5 of the apps include new schedule info that lets you know when new episodes are airing for a show, and what's next up to premiere. We're still not sure if this approach to the second screen is enough to consistently make viewers remember to grab their mobile device while watching, but you can try it out during an episode of Dual Survival and let us know how it goes.

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Source: Discovery Channel HD (iTunes), TLC (iTunes)

Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/oHmYvg8MyFQ/

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Wednesday, April 24, 2013

Cause of LED efficiency droop finally revealed

Apr. 23, 2013 ? Researchers at University of California, Santa Barbara, in collaboration with colleagues at the ?cole Polytechnique in France, have conclusively identified Auger recombination as the mechanism that causes light emitting diodes (LEDs) to be less efficient at high drive currents.

Until now, scientists had only theorized the cause behind the phenomenon known as LED "droop" -- a mysterious drop in the light produced when a higher current is applied. The cost per lumen of LEDs has held the technology back as a viable replacement for incandescent bulbs for all-purpose commercial and residential lighting.

This could all change now that the cause of LED efficiency droop has been explained, according to researchers James Speck and Claude Weisbuch of the Center for Energy Efficient Materials at UCSB, an Energy Frontier Research Center sponsored by the U.S. Department of Energy.

Knowledge gained from this study is expected to result in new ways to design LEDs that will have significantly higher light emission efficiencies. LEDs have enormous potential for providing long-lived high quality efficient sources of lighting for residential and commercial applications. The U.S. Department of Energy recently estimated that the widespread replacement of incandescent and fluorescent lights by LEDs in the U.S. could save electricity equal to the total output of fifty 1GW power plants.

"Rising to this potential has been contingent upon solving the puzzle of LED efficiency droop," commented Speck, professor of Materials and the Seoul Optodevice Chair in Solid State Lighting at UCSB. "These findings will enable us to design LEDs that minimize the non-radiative recombination and produce higher light output."

"This was a very complex experiment -- one that illustrates the benefits of teamwork through both an international collaboration and a DOE Energy Frontier Research Center," commented Weisbuch, distinguished professor of Materials at UCSB. Weisbuch, who is also a faculty member at the ?cole Polytechnique in Paris, enlisted the support of his colleagues Lucio Martinelli and Jacques Peretti. UCSB graduate student Justin Iveland was a key member of the team working both at UCSB and ?cole Polytechnique.

In 2011, UCSB professor Chris van de Walle and colleagues theorized that a complex non-radiative process known as Auger recombination was behind nitride semiconductor LED droop, whereby injected electrons lose energy to heat by collisions with other electrons rather than emitting light.

A definitive measurement of Auger recombination in LEDs has now been accomplished by Speck, Weisbuch, and their research team.

The experiment used an LED with a specially prepared surface that permitted the researchers to directly measure the energy spectrum of electrons emitted from the LED. The results unambiguously showed a signature of energetic electrons produced by the Auger process.

The results of their work are to be published in the journal Physical Review Letters.

This work was funded by the UCSB Center for Energy Efficient Materials, an Energy Frontier Research Center of the US Department of Energy, Office of Science. Additional support for the work at ?cole Polytechnique was provided by the French government.

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Story Source:

The above story is reprinted from materials provided by University of California - Santa Barbara.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


Journal Reference:

  1. Justin Iveland, Lucio Martinelli, Jacques Peretti, James S. Speck, Claude Weisbuch. Direct Measurement of Auger Electrons Emitted from a Semiconductor Light-Emitting Diode under Electrical Injection: Identification of the Dominant Mechanism for Efficiency Droop. Physical Review Letters, 2013 [link]

Note: If no author is given, the source is cited instead.

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/~3/sYjYfxnSmi4/130423102328.htm

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Firefox OS Developer Phones Sold Out After First Few Hours On Sale, But More Are On The Way

firefox-osGeeksphone, the smartphone OEM startup based out of Madrid, put the first Firefox OS developer phones on sale early this morning, offering the Keon for $119 and the more powerful Peak for $194. Both devices are the first hardware to be offered with Firefox OS on board, and both devices are now listed as "Out of stock," just a few hours after first going on sale.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/v4hTzBqr65Q/

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Futurama gets canceled a second time, finale to air on September 4th

DNP Futurama gets cancelled a second time, finale to air on September 4 2013

Bad news, everyone. Five years into Futurama's revived presence on Comedy Central, the animated sci-fi series is getting the boot for the second time in its long and tumultuous history. Long-time fans will remember the first series finale ("The Devil's Hands are Idle Playthings") on Fox in 2003, the show's brief rerun stint on Cartoon Network's Adult Swim, the foray into four direct-to-DVD movies (which were separated into sixteen episodes for its inaugural season on Comedy Central) and its eventual deal with the cable network that brought us South Park and The Daily Show. But it seems even after stunts like playing on our gadget obsessions and coming up with a brand new mathematical theorem, the fine folks over at Planet Express just couldn't slake Viacom's thirst for viewers. So, with a heavy heart, we await the series finale (dubbed "Meanwhile") to air on September 4th. But hey, maybe someone can convince Netflix to give life to yet another brilliant-but-canceled series?

Update: To check out a preview of the show's final season -- to debut on June 19th -- take a peek at the second video after the break.

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Source: Entertainment Weekly

Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/Craswz0gR80/

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Tuesday, April 23, 2013

Cause of LED efficiency droop finally revealed

Apr. 23, 2013 ? Researchers at University of California, Santa Barbara, in collaboration with colleagues at the ?cole Polytechnique in France, have conclusively identified Auger recombination as the mechanism that causes light emitting diodes (LEDs) to be less efficient at high drive currents.

Until now, scientists had only theorized the cause behind the phenomenon known as LED "droop" -- a mysterious drop in the light produced when a higher current is applied. The cost per lumen of LEDs has held the technology back as a viable replacement for incandescent bulbs for all-purpose commercial and residential lighting.

This could all change now that the cause of LED efficiency droop has been explained, according to researchers James Speck and Claude Weisbuch of the Center for Energy Efficient Materials at UCSB, an Energy Frontier Research Center sponsored by the U.S. Department of Energy.

Knowledge gained from this study is expected to result in new ways to design LEDs that will have significantly higher light emission efficiencies. LEDs have enormous potential for providing long-lived high quality efficient sources of lighting for residential and commercial applications. The U.S. Department of Energy recently estimated that the widespread replacement of incandescent and fluorescent lights by LEDs in the U.S. could save electricity equal to the total output of fifty 1GW power plants.

"Rising to this potential has been contingent upon solving the puzzle of LED efficiency droop," commented Speck, professor of Materials and the Seoul Optodevice Chair in Solid State Lighting at UCSB. "These findings will enable us to design LEDs that minimize the non-radiative recombination and produce higher light output."

"This was a very complex experiment -- one that illustrates the benefits of teamwork through both an international collaboration and a DOE Energy Frontier Research Center," commented Weisbuch, distinguished professor of Materials at UCSB. Weisbuch, who is also a faculty member at the ?cole Polytechnique in Paris, enlisted the support of his colleagues Lucio Martinelli and Jacques Peretti. UCSB graduate student Justin Iveland was a key member of the team working both at UCSB and ?cole Polytechnique.

In 2011, UCSB professor Chris van de Walle and colleagues theorized that a complex non-radiative process known as Auger recombination was behind nitride semiconductor LED droop, whereby injected electrons lose energy to heat by collisions with other electrons rather than emitting light.

A definitive measurement of Auger recombination in LEDs has now been accomplished by Speck, Weisbuch, and their research team.

The experiment used an LED with a specially prepared surface that permitted the researchers to directly measure the energy spectrum of electrons emitted from the LED. The results unambiguously showed a signature of energetic electrons produced by the Auger process.

The results of their work are to be published in the journal Physical Review Letters.

This work was funded by the UCSB Center for Energy Efficient Materials, an Energy Frontier Research Center of the US Department of Energy, Office of Science. Additional support for the work at ?cole Polytechnique was provided by the French government.

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The above story is reprinted from materials provided by University of California - Santa Barbara.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


Journal Reference:

  1. Justin Iveland, Lucio Martinelli, Jacques Peretti, James S. Speck, Claude Weisbuch. Direct Measurement of Auger Electrons Emitted from a Semiconductor Light-Emitting Diode under Electrical Injection: Identification of the Dominant Mechanism for Efficiency Droop. Physical Review Letters, 2013 [link]

Note: If no author is given, the source is cited instead.

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/most_popular/~3/sYjYfxnSmi4/130423102328.htm

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Monday, April 22, 2013

Livable super-Earths? Two candidates among Kepler's latest finds.

Researchers unveiled a total of three planets Thursday, including two potentially livable super-Earths. The discoveries bring the Kepler team closer to its goal.

By Pete Spotts,?Staff writer / April 18, 2013

An artist drew (l. to r.) Kepler-22b, Kepler-69c, Kepler-62e, Kepler 62f, and Earth to scale to show the similarities in size. Scientists using NASA's Kepler space telescope have found the best candidates yet for potentially life-bearing worlds beyond our solar system, officials said Thursday.

JPL-Caltech / NASA Ames / Reuters

Enlarge

Two potentially livable super-Earths and an outsized version of Venus were unveiled Thursday, the latest in a string of remarkable discoveries from NASA's Kepler mission.

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Kepler is a space-based observatory whose unblinking gaze has rested on some 170,000 stars simultaneously since May 2009.

The three planets are the smallest the observatory has yet detected in stellar habitable zones. These zones represent distances where a planet receives enough light from its host star to harbor liquid water on its surface. Liquid water is essential for the emergence of organic life.

The discoveries bring the Kepler team tantalizingly close to its ultimate goal ? to find Earth-mass planets orbiting sun-like stars at Earth-like distances, while also taking a broader census to see how many planetary systems with an Earth-like planet the Milky Way may hold.

Led by William Borucki, a researcher at the National Aeronautic and Space Administration's Ames Research Center near Mountain View, Calif., the team has confirmed 115 extra-solar planets so far, and it has amassed a roster of more than 2,700 planet candidates.

Two of the new planets are part of a five-planet system orbiting a star some 1,200 light-years away in the constellation Lyra. The star, Kepler 62, is about two-thirds the size of the sun and has 70 percent of the sun's mass. It's also about 3 billion years older than the sun.

The system's three inner planets, one comparable in size to Mars, are too close to their sun to be livable. Kepler 62-e, the fourth planet out, however, falls within the habitable zone. Orbiting once every 122 days, the planet is about 60 percent larger than Earth.

The team speculates that the planet is covered with water, although the system is too far away to take the measurements needed to estimate the planet's mass. Researchers need that measurement to determine the planet's density, a major clue as to its bulk composition.

Instead, modeling studies have indicated that planets ranging from 1.5 to two times Earth's size tend to be far more watery than planets closer to Earth's size. Thus, while the nature of the planet remains speculative for now, "the fascinating idea is that we've actually found the first ocean planet, the first water world out there," said Lisa Kaltenegger, an astronomer with the Max Planck Institute for Astronomy in Germany and the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass., during a mission briefing Thursday afternoon.

Source: http://rss.csmonitor.com/~r/feeds/science/~3/Bfe6a9VuJHU/Livable-super-Earths-Two-candidates-among-Kepler-s-latest-finds

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