Saturday, December 31, 2011

Ghana Football Mafia: GFA/Serbian Agent Collusion?

There is a credible speculation of a GFA/SERBIAN Agent collusion (kind of a football Mafia) that goes like this: A Serbian football agent that recruits Serbian coaches for the Black Stars also manages some Ghanaian players.

Such players get to play on the national team (regardless of their performance) because the appointed Serbian coach who is part of the network ensures the success of the players whose market value and opportunity to be picked up by top European teams depend on their Black Star selection. In return, the big cats at the GFA get kickbacks from hiring Serbian coaches and from the success of Serbian managed Ghanaian players.

So Prince Tagoe gets to make national team selection consistently even though a second rate Bundesliga team had to let him go for nonperformance, and he has been the weakest link on the Black Star team any time he has played. Coach Plavi says he appreciates his work rate and justifies Tagoe?s inclusion in the final 25 players to play in the next African Cup on that fact alone.

If work rate is the sole criteria for Black Star selection, then many hardworking Ghanaian farmers who can till the soil from dusk to dawn nonstop should make first team Black Star selection. Or even better, Plavi should go to Ghana?s boxing capital at Bukom to recruit Bukom Banku and co. Tagoe simply doesn?t have the football skill required to play for the mighty Black Stars.

Why am I saying this rumor is credible? Our last four coaches have all been Serbians. This has never happened in any nation's football history -- and certainly not Ghana's.

Now if this is true we have dysfunctional and unscrupulous leadership at the GFA and that's dangerous for the future of Ghana football. Just consider the short term impact -- we deny players that should make the team the chance to play and by so doing weaken the Black Star team. In addition, such a miscarriage of fairness will eventually dampen player morale and nibble away at the unity and strength of the national. Even though it's all speculation at this point (such allegations are impossible to prove anyway), the warnings signs are starring us in the face like big graffiti on a billboard.

Blind followers of this administration will as usual dismiss such concerns as nothing but a witch-hunt. But fair-minded Ghanaian football fans with no ax to grind but are rather are motivated first and foremost by the success of Ghana football ought to be concerned. A word to the wise is in the direction of Tamale, as we say we say jokingly in Ghanaian parlance.

Source: http://sports.peacefmonline.com/news/201112/86775.php

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Friday, December 30, 2011

2012 Tablet Spending Spree By SMBs Predicted (NewsFactor)

Tablets are high on the 2012 shopping lists of small- to mid-sized business hardware buyers at companies based in the United States, according to NPD Group's latest SMB survey. And Apple's iPad remains the top preferred brand among purchasing decision makers at U.S. companies with fewer than 1,000 employees, which collectively employ 121 million people.

NPD reports that 73 percent of the nation's SMBs overall intend to spend more on tablets in 2012 -- up from 68 percent of the respondents to a similar NDP survey conducted in this year's second quarter. Moreover, 90 percent expect to spend the same amount or more on tablets over the next 12 months.

Though many industry observers have predicted that the rising sales of tablets would lead to PC cannibalization, NPD's latest survey demonstrates that less than 20 percent of SMBs overall expect to cut their PC purchases during the year ahead.

"Spending continues on PCs, and on tablets, and few companies -- even the smallest ones -- are significantly reallocating their spending away from the personal computing needs of their employees," said NPD Vice President Stephen Baker.

"As we head into 2012, the SMB market continues to provide an important source of volume and dollars to the PC market," Baker wrote in a Thursday blog post.

SMB PC Spending Intentions

According to Baker, the heightened interest that SMBs have expressed about acquiring tablets for their employees next year by no means equates to the death of the PC market.

"The combination, however, of the length of time since the Windows 7 launch, the need to spend on higher cost infrastructure, and the increased spending on tablets has clearly put a crimp on PC spending intentions -- especially among the largest firms," Baker explained.

NPD's SMB Technology Monitor reports that 36 percent of the businesses surveyed with fewer than 50 employees said they expect to increase their spending on PCs during the year ahead. Moreover, Baker observed that their average spend of $3,400 would equate to upgrading 10 percent to 15 percent of each firm's PC base.

Only 23 percent of SMBs with 501-999 employees expect to spend more on PCs in 2012, with the average spend approaching $75,000. According to Baker, this would likewise equate to replacing around 10 percent to 15 percent of the installed base at these larger firms.

Apple Leads the Field

By contrast, 89 percent of U.S. SMBs with 501 to 999 workers plan to make new tablet purchases next year. What's more, a significant majority of companies with 201 to 500 employees (81 percent) and 50 to 200 workers (70 percent) intend to follow suit. And at the smallest companies with less than 50 workers, 54 percent plan on making new tablet purchases and with 88 percent expecting to either increase or maintain 2011 spending levels.

"Businesses of all sizes appear to be determined to capitalize on the tablet phenomenon," Baker said. "NPD's research shows that iPad purchase preference is higher among larger firms than smaller ones, which is an important indicator that Apple is gaining traction far outside its typical consumer space."

NPD's new survey did not attempt to gauge the impact that Microsoft's forthcoming Windows 8 operating system for PCs and tablets might have on the 2012 purchasing decisions of SMBs. "We ask about what people intend to do now and what their plans are based on what they know today," Baker said in a Thursday e-mail.

In other words, NPD did not ask respondents "to speculate on what they might do under a different set of circumstances in the future" nor query "about any potential impact of Windows 8," Baker added.

Source: http://us.rd.yahoo.com/dailynews/rss/applecomputer/*http%3A//news.yahoo.com/s/nf/20111229/bs_nf/81582

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Stanford archives offer window into Apple origins

In this photo taken Oct. 18, 2011, processor Dennis Sparhawk checks items on shelves at a Stanford University Silicon Valley Archives storage facility in an undisclosed location in California. Historians and entrepreneurs who want to understand the rise of Apple Inc. and its founder Steve Jobs will find a treasure trove of clues in Stanford University's Silicon Valley Archives. (AP Photo/Jeff Chiu)

In this photo taken Oct. 18, 2011, processor Dennis Sparhawk checks items on shelves at a Stanford University Silicon Valley Archives storage facility in an undisclosed location in California. Historians and entrepreneurs who want to understand the rise of Apple Inc. and its founder Steve Jobs will find a treasure trove of clues in Stanford University's Silicon Valley Archives. (AP Photo/Jeff Chiu)

In this photo taken Oct. 25, 2011, curator Henry Lowood is shown looking at an old photograph of Steve Jobs at Stanford's Green Library in Stanford, Calif. Historians and entrepreneurs who want to understand the rise of Apple Inc. and its founder Steve Jobs will find a treasure trove of clues in Stanford University's Silicon Valley Archives. (AP Photo/Jeff Chiu)

In this photo taken Oct. 25, 2011, a photo of an old keyboard is shown next to a letter written about Steve Jobs at Stanford's Green Library in Stanford, Calif. Historians and entrepreneurs who want to understand the rise of Apple Inc. and its founder Steve Jobs will find a treasure trove of clues in Stanford University's Silicon Valley Archives. (AP Photo/Jeff Chiu)

In this photo taken Oct. 25, 2011, curator Henry Lowood holds up an old Apple 1 operation manual at Stanford's Green Library in Stanford, Calif. Historians and entrepreneurs who want to understand the rise of Apple Inc. and its founder Steve Jobs will find a treasure trove of clues in Stanford University's Silicon Valley Archives. (AP Photo/Jeff Chiu)

(AP) ? In the interview, Steve Wozniak and the late Steve Jobs recall a seminal moment in Silicon Valley history ? how they named their upstart computer company some 35 years ago.

"I remember driving down Highway 85," Wozniak says. "We're on the freeway, and Steve mentions, 'I've got a name: Apple Computer.' We kept thinking of other alternatives to that name, and we couldn't think of anything better."

Adds Jobs: "And also remember that I worked at Atari, and it got us ahead of Atari in the phonebook."

The interview, recorded for an in-house video for company employees in the mid-1980s, was among a storehouse of materials Apple had been collecting for a company museum. But in 1997, soon after Jobs returned to the company, Apple officials contacted Stanford University and offered to donate the collection to the school's Silicon Valley Archives.

Within a few days, Stanford curators were at Apple headquarters in nearby Cupertino, packing two moving trucks full of documents, books, software, videotapes and marketing materials that now make up the core of Stanford's Apple Collection.

The collection, the largest assembly of Apple historical materials, can help historians, entrepreneurs and policymakers understand how a startup launched in a Silicon Valley garage became a global technology giant.

"Through this one collection you can trace out the evolution of the personal computer," said Stanford historian Leslie Berlin. "These sorts of documents are as close as you get to the unmediated story of what really happened."

The collection is stored in hundreds of boxes taking up more than 600 feet of shelf space at the Stanford's off-campus storage facility. The Associated Press visited the climate-controlled warehouse on the outskirts of the San Francisco Bay area, but agreed not to disclose its location.

Interest in Apple and its founder has grown dramatically since Jobs died in October at age 56, just weeks after he stepped down as CEO and handed the reins to Tim Cook. Jobs' death sparked an international outpouring and marked the end of an era for Apple and Silicon Valley.

"Apple as a company is in a very, very select group," said Stanford curator Henry Lowood. "It survived through multiple generations of technology. To the credit of Steve Jobs, it meant reinventing the company at several points."

Apple scrapped its own plans for a corporate museum after Jobs returned as CEO and began restructuring the financially struggling firm, Lowood said.

Job's return, more than a decade after he was forced out of the company he co-founded, marked the beginning of one of the great comebacks in business history. It led to a long string of blockbuster products ? including the iPod, iPhone and iPad ? that have made Apple one of the world's most profitable brands.

After Stanford received the Apple donation, former company executives, early employees, business partners and Mac enthusiasts have come forward and added their own items to the archives.

The collection includes early photos of young Jobs and Wozniak, blueprints for the first Apple computer, user manuals, magazine ads, TV commercials, company t-shirts and drafts of Jobs' speeches.

In one company video, Wozniak talks about how he had always wanted his own computer, but couldn't get his hands on one at a time when few computers were found outside corporations or government agencies.

"All of a sudden I realized, 'Hey microprocessors all of a sudden are affordable. I can actually build my own,'" Wozniak says. "And Steve went a little further. He saw it as a product you could actually deliver, sell and someone else could use."

The pair also talk about the company's first product, the Apple I computer, which went on sale in July 1976 for $666.66.

"Remember an Apple I was not particularly useable for too much, but it was so incredible to have your own computer," Jobs says. "It was kind of an embarkation point from the way computers had been going in these big steel boxes with switches and lights."

Among the other items in the Apple Collection:

? Thousands of photos by photographer Douglas Menuez, who documented Jobs' years at NeXT Computer, which he founded in 1985 after he was pushed out of Apple.

? A company video spoofing the 1984 movie "Ghost Busters," with Jobs and other executives playing "Blue Busters," a reference to rival IBM.

? Handwritten financial records showing early sales of Apple II, one of the first mass-market computers.

? An April 1976 agreement for a $5,000 loan to Apple Computer and its three co-founders: Jobs, Wozniak and Ronald Wayne, who pulled out of the company less than two weeks after its founding.

? A 1976 letter written by a printer who had just met Jobs and Wozniak and warns his colleagues about the young entrepreneurs: "This joker (Jobs) is going to be calling you ... They are two guys, they build kits, operate out of a garage."

The archive shows the Apple founders were far ahead of their time, Lowood said.

"What they were doing was spectacularly new," he said. "The idea of building computers out of your garage and marketing them and thereby creating a successful business ? it just didn't compute for a lot of people."

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/3d281c11a96b4ad082fe88aa0db04305/Article_2011-12-29-Apple%20Archives/id-643d7370f13f4ec2bdbfbc9af681c508

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Thursday, December 29, 2011

Get Siri on your iPhone 4, 3GS, iPod Touch or iPad. Legally, and easily.

This feels like old news. When news breaks in chunks like this, it tends to feel a lot less fresh.

siri iphone4 hack large Get Siri on your iPhone 4, 3GS, iPod Touch or iPad. Legally, and easily.

We?ve seen multiple times a private port of Siri to unsupported iOS 5 devices.

TODAY IT?S LEGAL AND EASY

However, today Chpwn and Ryan Petrich went public today with a Siri port called Spire.

The port mirrors all the iPhone 4S Siri functionality and works on the jailbroken iPhone 4, iPhone 3GS, third generation iPod touch, fourth generation iPod touch, and first generation iPad.

Don?t get your hopes up on the iPod Touch though. The microphones in those devices tend to be less powerful, and make for a poor Siri experience.

Spire is available free on the Cydia jailbroken application market, and the download comes in at approximately 100mb, according to a blog post from Chpwn. The developers recommend that users connect to a Wi-Fi network for downloading, not a standard cellular network, because of the large file size.

?Spire uses a new method to obtain the files necessary for Siri, so it doesn?t have the copyright issues encountered by previous attempts,? said Chpwn

YOU STILL NEED AN iPHONE 4S

Of course, with any port of this kind, there will be a caveat: you have to still gain authorization through your own server and an iPhone 4S. Chpwn explained the issue:

However, Spire is not a complete solution. Apple still requires authorization to use Siri, so information from an iPhone 4S is still required. To insert this information, Spire allows you to enter your own proxy server address. By using this (ancient) SiriProxy fork, you can setup a proxy using your own iPhone 4S to insert the needed information reasonably easily. Other solutions for proxying Siri will be listed here as they are developed ? perhaps that sort of proxy might be included in the main SiriProxy repository.

Long story short, you can absolutely get Siri working on your iPhone 4 in a fully legal way. You just need to convince your best friend with an iPhone 4S to let you use their ?halo-connection? with Siri.

?Until the iPhone 4S is jailbroken, this is the best Siri port,? said Steven Troughton-Smith, ?when the iPhone 4S is jailbroken, then we can avoid the proxy server issues.? Spire can be downloaded from this link, if you are on a jailbroken iOS 5 devices.

Update: The iPhone Dev team posted an update to their redsn0w jailbreak. You can now jailbreak any non-A5 device untethered (meaning you can reboot the device without hooking it back up to a computer). This of course, makes this Siri news a lot bigger.

Source: http://www.zagg.com/community/blog/get-siri-on-your-iphone-4-3gs-ipod-touch-or-ipad-legally-and-easily/

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Paul builds campaign on doomsday scenarios (reuters)

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Wednesday, December 28, 2011

Argentine leader's cancer forces her to delegate

Argentina's President Cristina Fernandez talks to Argentine governors at government house in Buenos Aires, Argentina, Wednesday Dec. 28, 2011. Fernandez, who on Tuesday was diagnosed with treatable thyroid cancer, will undergo surgery on Jan. 4 and then take 20 days of medical leave, during which Vice President Amado Boudou will run the country. (AP Photo/Eduardo Di Baia)

Argentina's President Cristina Fernandez talks to Argentine governors at government house in Buenos Aires, Argentina, Wednesday Dec. 28, 2011. Fernandez, who on Tuesday was diagnosed with treatable thyroid cancer, will undergo surgery on Jan. 4 and then take 20 days of medical leave, during which Vice President Amado Boudou will run the country. (AP Photo/Eduardo Di Baia)

Argentina's President Cristina Fernandez talks to a group of Argentine governors at the government house in Buenos Aires, Argentina, Wednesday Dec. 28, 2011. Fernandez, who on Tuesday was diagnosed with treatable thyroid cancer, will undergo surgery on Jan. 4 and then take 20 days of medical leave, during which Vice President Amado Boudou will run the country. Next to Fernandez is a scale model of an iron sculpture of Argentina's former first lady and second wife of President Juan Peron, Eva Peron. (AP Photo/Eduardo Di Baia)

Argentina's President Cristina Fernandez talks to a group of Argentine governors at government house in Buenos Aires, Argentina, Wednesday Dec. 28, 2011. Fernandez, who on Tuesday was diagnosed with treatable thyroid cancer, will undergo surgery on Jan. 4 and then take 20 days of medical leave, during which Vice President Amado Boudou will run the country. (AP Photo/Eduardo Di Baia)

Argentina's President Cristina Fernandez talks to a group of Argentine governors at the government house in Buenos Aires, Argentina, Wednesday Dec. 28, 2011. Fernandez, who on Tuesday was diagnosed with treatable thyroid cancer, will undergo surgery on Jan. 4 and then take 20 days of medical leave, during which Vice President Amado Boudou will run the country. Next to Fernandez is a scale model of an iron sculpture of Argentina's former first lady and second wife of President Juan Peron, Eva Peron. (AP Photo/Eduardo Di Baia)

Argentina's President Cristina Fernandez talks to a group of Argentine governors at the government house in Buenos Aires, Argentina, Wednesday Dec. 28, 2011. Fernandez, who on Tuesday was diagnosed with treatable thyroid cancer, will undergo surgery on Jan. 4 and then take 20 days of medical leave, during which Vice President Amado Boudou will run the country. Pictured at right is a portrait of Argentina's former first lady and second wife of President Juan Peron, Eva Peron. Next to Fernandez is a scale model of an iron sculpture of Peron. (AP Photo/Eduardo Di Baia)

(AP) ? Argentina's president cracked jokes and sounded optimistic Wednesday after her thyroid cancer diagnosis was announced, but she's clearly struggling with the need to delegate power while she recovers from next week's surgery.

Cristina Fernandez's thyroid removal operation, scheduled for Jan. 4, is expected to be as routine as cancer surgery can be. Doctors predict a speedy recovery, since papillary thyroid carcinoma detected before it spreads is highly curable without chemotherapy.

Still, the idea of leaving her vice president in charge for 20 days appears to pose a daunting challenge for Fernandez, who has never been comfortable delegating.

She praised her constitutional successor, former Economy Minister Amado Boudou, for sharing her political ideas, but jokingly warned him to "be careful what you do" as interim president and made clear that she'll be keeping a close watch on things while recovering at her home in Patagonia.

"The truth is that I ? everything is too much. You can't be in charge of everything," Fernandez acknowledged. "The body can't handle it."

Indeed. Despite the doctors' assurances, simply combining the words "cancer" and "Cristina" had Argentines worried about the mortality of a leader who has been virtually alone at the top. Even before the death of her husband, Nestor Kirchner, of a heart attack last year, she had grown accustomed to ruling through emergency decrees after consulting only a small circle of loyal advisers.

"It affects me deeply," said Cecilia Maldonado, a young office worker in downtown Buenos Aires. "Because if you begin to think about her having to leave the presidency, or something happening to her ... there isn't anybody who could replace all the energy that she's put into raising up this government."

Fernandez and Kirchner were Argentina's ultimate power couple, whose fervent supporters say they've done more for the country during their combined two terms in office than anyone since legendary strongman Juan Domingo Peron and his wife, Evita, used the country's post-World War II riches to move a generation of working people into the middle class.

Fernandez, 58, dispelled doubts about her survival skills after Kirchner's death and won re-election by a landslide in October, in part because voters saw the grieving widow as indomitable ? the only one capable of containing Argentina's social pressures and keeping on track the economy, which grew at more than 9 percent this year.

Argentina has come back strong from its disastrous devaluation and debt default a decade ago, reducing poverty, unemployment and the wealth gap, and directing billions of dollars in revenue to the poor through social programs. But many worry that such achievements could disappear when Fernandez leaves office.

"Just when it seems like we're getting a little better," complained Maldonado, reacting to the news. "Ten years ago, I lived through 2001, and I really suffered. ... Only now can you see things improving, and plan for the future."

The cancer diagnosis worries Argentines precisely "because it's a one-person government ... where only the president makes decisions," said Mariel Fornoni, director of the Management & Fit consulting firm. "That's why there's so much doubt about what might happen."

Still, Fornoni said, it's clear that the president's planned medical leave is irrelevant, and that no real decision will be made without consulting her.

Fernandez spoke of her cancer diagnosis as she announced new revenue transfers to provincial governments, seeking to project an image of normalcy. Several of the gathered governors and ministers who gave her an extended standing ovation said they were relieved to see her in good spirits and fully in command.

"She seems optimistic, making jokes. Clearly she's not going to let anything slow her down these next four years," said Jorge Capitanich, governor of the northern state of Chaco.

Just behind her during her speech was an architect's rendering of an image of Evita Peron that now towers over the widest avenue in Buenos Aires. Comparisons weren't lost on Argentines, who learn as children that Evita died in 1951 because she neglected her own health while caring for the poor, letting uterine cancer spread until it was incurable.

The president's doctors said Fernandez was told of her cancer on Dec. 22, the same day that her newly inaugurated Senate majority, racing to approve new laws ahead of its summer recess, significantly increased several executive powers.

And while Fernandez talked of delegating on Wednesday, she reversed herself practically in the same breath.

"We're going to keep going with the same energy we've always had. We need to face things as we've always done, taking charge of everything that's our responsibility, and everything else as well," she said. "I'm going to keep working the same as always, for Argentina, for nothing other than her, and for all the Argentines."

___

Associated Press writer Almudena Calatrava in Buenos Aires contributed to this report.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/bbd825583c8542898e6fa7d440b9febc/Article_2011-12-28-LT-Argentina-President's-Health/id-245e720f204b47b6951214e23eed2d0f

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Florida Panthers and Maple Leafs: Tuesday's Pregame Notes

VersteegTOSaw a lot of blue-and-white license tags in the Sawgrass Mills parking lot today.

What does that mean??

Nothing I guess. Just throwing it out there.

(The above shot is of Panthers winger Kris Versteeg addressing the Toronto media. There were a few of us South Florida folk there too.)

-- Not a whole lot of news out of today.

Stephen Weiss is out of the game so your Florida Panthers top line?

(Drum roll)....

Tomas Fleischmann, Shawn Matthias, Matt Bradley.

Actually, I could see a lot of energy coming out of these three. Matthias is playing great.

Still, you hate to see Weiss out of the lineup. Different team, historically, when he's not there.

"As a coach you just keep banging on that drum,'' Kevin Dineen said of Weiss, "because he?s a guy to reach for in all key situations.''

-- Jose Theodore doesn't speak on game days because of days (re: lots of media) like today.

He was very discreet in sneaking out the back door of the locker room.

I saw you bubba.

Theodore in net versus the Leafs.

-- Any updates on the other six injured players?

No.

The silence around the Panthers is deafening. I'll get some updates tonight. Just don't ask me how.

-- Erik Gudbranson told the Canadian media that it wasn't his call in whether he would stay here or play for Team Canada in the world juniors.

He said all the right things. Losing the gold medal game last year "still leaves a bitter taste,'' so going back and winning it this year in Canada would be cool.

But, he added, it's tough to leave your team for a month -- especially an NHL team. The Panthers made the right decision in keeping him, Gudbranson said.

Maddencruiser-- Our good pal Mike Russo (@Russostrib on Twitter) says former Devils center John Madden is working out in Minnesota waiting for that call to come back.

Word is the Panthers are interested.?

Madden, who won two Cups with the Devils, was part of the Blackhawks 2010 title team. Now 38, Madden scored 12 goals for the Wild last season.

Why not?

-- Talked a little hockey with Sportsnet's Jeff Marek and Yahoo's Greg Wyshynski (puckdaddy.com)?on Tuesday. You can listen to it at another time.

-- Back on the radio tonight around 7 to talk up the Panthers/Leafs tilt on Toronto's own AM 640. You can tune in here.

-- Mark Cullen is back with the Panthers and it seems like the problem with him not making it to Boston last week was timing. He had to clear waivers and couldn't do so with such a quick turnaround.?

He's happy to be back and said if you're going to miss a game in the NHL, it's good to be an 8-0 loss.

"No offense to him,'' Dineen said, "but he wouldn't have made much of a difference.''

Cullen laughed when I repeated that quote.

-- With Cullen in, Gudbranson is back on D.

The Panthers are 0-4 when rolling seven defensemen.

?It?s not a great formula for us obviously,'' Dineen quipped.

?

Source: http://miamiherald.typepad.com/flapanthers/2011/12/flapanthers-leafs-pregame-notes.html

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Tuesday, December 27, 2011

Mystery Nokia 3-inch windows phone Pocket tablet?like device spotted?

WP_000074

We almost forgot about? this little device. At the Nokia/T-Mobile Press event for the Lumia 710 we got a? brief sneak peek at a little 3-inch Nokia Windows phone pocket tablet like device. It got 3-inch display, with no apparent physical button. No idea on specs or what the device truly is as we only saw it briefly, but it is a Windows phone based device and any indication from the Nokia CES 2012 Press event this device could show up. We will keep you posted

nokia-reveals-ces-2012-press-event-windows-phone-the-obvious-foWP_000073

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Source: http://booredatwork.com/2011/12/23/mystery-nokia-3-inch-windows-phone-pocket-tabletlike-device-spotted/

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LiveFreeRadio: RT @RonPaul: NYT: 'Soldiers' Choice' Ron Paul - http://t.co/WyPzvNkX #GOP #GOP2012 #tcot #teaparty #RonPaul

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Monday, December 26, 2011

MCG: RT @Glenn_Osborne: India captain MS Dhoni in the nets at the @MCG - shortly he'll address the media ahead of the Boxing Day Test http:// ...

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Cappers_Picks: Are you in Canada or Asia or Europe? Pinnacle Sports is the best bet for you! The BEST ODDS on the WWW. High Limits! http://t.co/1pFsNwU2

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Sunday, December 25, 2011

digitaljournal: Bus shootings in Mexico; 7 dead, including 3 U.S. citizens http://t.co/LYAf3lkN

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Friday, December 23, 2011

Discovery of a 'dark state' could mean a brighter future for solar energy

The efficiency of conventional solar cells could be significantly increased, according to new research on the mechanisms of solar energy conversion led by chemist Xiaoyang Zhu at The University of Texas at Austin. Zhu and his team have discovered that it's possible to double the number of electrons harvested from one photon of sunlight using an organic plastic semiconductor material.

"Plastic semiconductor solar cell production has great advantages, one of which is low cost," said Zhu, a professor of chemistry. "Combined with the vast capabilities for molecular design and synthesis, our discovery opens the door to an exciting new approach for solar energy conversion, leading to much higher efficiencies."

Zhu and his team published their groundbreaking discovery in Science.

The maximum theoretical efficiency of the silicon solar cell in use today is approximately 31 percent, because much of the sun's energy hitting the cell is too high to be turned into usable electricity.

That energy, in the form of "hot electrons," is instead lost as heat. Capturing hot electrons could potentially increase the efficiency of solar-to-electric power conversion to as high as 66 percent.

Zhu and his team previously demonstrated that those hot electrons could be captured using semiconductor nanocrystals. They published that research in Science in 2010, but Zhu says the actual implementation of a viable technology based on that research is very challenging.

"For one thing," said Zhu, "that 66 percent efficiency can only be achieved when highly focused sunlight is used, not just the raw sunlight that typically hits a solar panel. This creates problems when considering engineering a new material or device."

To circumvent that problem, Zhu and his team have found an alternative. They discovered that a photon produces a dark quantum "shadow state" from which two electrons can then be efficiently captured to generate more energy in the semiconductor pentacene.

Zhu said that exploiting that mechanism could increase solar cell efficiency to 44 percent without the need for focusing a solar beam, which would encourage more widespread use of solar technology.

Science Behind the Discovery
+ Absorption of a photon in a pentacene semiconductor creates an excited electron-hole pair called an exciton.

+ The exciton is coupled quantum mechanically to a dark "shadow state" called a multiexciton.

+ This dark shadow state can be the most efficient source of two electrons via transfer to an electron acceptor material, such as fullerene, which was used in the study.

+ Exploiting the dark shadow state to produce double the electrons could increase solar cell efficiency to 44 percent.

The research team was spearheaded by Wai-lun Chan, a postdoctoral fellow in Zhu's group, with the help of postdoctoral fellows Manuel Ligges, Askat Jailaubekov, Loren Kaake and Luis Miaja-Avila. The research was supported by the National Science Foundation and the Department of Energy.

Source: http://www.solardaily.com/reports/Discovery_of_a_dark_state_could_mean_a_brighter_future_for_solar_energy_999.html

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HP Sends $19 Refunds To Overcharged TouchPad Sale Partakers

cashhhIf you were one of the lucky few that managed to snag a TouchPad during HP's (maybe) final fire sale of TouchPad inventory two weeks ago, you might be receiving a little present soon via PayPal. It seems that some people were charged quite a bit extra for shipping. It seems a bit fussy to complain about when you're getting a device like this for such a ridiculous price, but hey, not everyone can spare ten bucks these days. Not only that, but there was chaos at eBay and PayPal during the promotion; many commenters complained of errors, lag, and lost orders. Fear not: you will be compensated for your troubles.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/K6W2hFc_AoU/

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Thursday, December 22, 2011

It's a Small World: Kepler Spacecraft Discovers First Known Earth-Size Exoplanets

News | Space

NASA's planet-hunting observatory claims its smallest two finds yet, but neither looks hospitable to life


Kepler 20 planets alongside Venus and Earth for scaleLET'S GET SMALL: The newfound planets Kepler 20 e [far left] and Kepler 20 f [far right] alongside Venus and Earth, the comparably sized worlds in the solar system. In this artist's conception, the cooler planet Kepler 20 f is assumed to host an atmosphere. Image: Tim Pyle

NASA's Kepler spacecraft is starting to put the pieces together in its search for virtual Earth twins in other planetary systems. Kepler, which launched in 2009, is on the lookout for planets that are about the size of Earth and have temperate surface conditions. One half of that formula was realized on December 5 when mission scientists announced the discovery of a planet in the so-called habitable zone, called Kepler 22 b, a few times larger than Earth. Now Kepler has located its first two Earth-size worlds, and although neither are plausibly hospitable to life, it seems only a matter of time before the mission scores its ultimate goal.

The two new worlds orbit a sunlike star 950 light-years away called Kepler 20. One has dimensions almost identical to our own planet; the other is just 87 percent Earth's diameter. The planets, which by convention have been assigned the names Kepler 20 f and Kepler 20 e, respectively, are the smallest exoplanets for which diameters are known. Francois Fressin and Guillermo Torres of the Harvard?Smithsonian Center for Astrophysics and their colleagues announced the discoveries in a paper published online December 20 in Nature. (Scientific American is part of Nature Publishing Group.)

"For the first time, we've crossed the threshold of finding Earth-size worlds," Torres says. "The next step is having an Earth-size planet in the habitable zone."

Tens of millions of kilometers from Earth, the Kepler spacecraft carries out a relatively simple task. It tracks the brightness of more than 150,000 stars, watching for them to dim repeatedly as a planet passes in front of a star's face. For a planet as small as Kepler 20 e, that dimming is incredibly subtle; every six days, when Kepler 20 e completes an orbit, the starlight dips to 99.992 percent of its regular flux for just a few hours.

By tracking how much of a star's light a planet blots out, astronomers can make a careful estimate of the body's diameter. For larger worlds, they can also make a complementary estimate of the planet's mass by using ground-based telescopes that measure how much of a wobble the planet's motion induces on its host star. Witnessing such a wobble also confirms the presence of a real planet, as opposed to some other astrophysical phenomenon that causes regular fluctuations in a star's brightness. (One planet-mimicking phenomenon is a binary star system behind one of Kepler's target stars; when one member of the binary eclipses the other it causes a temporary dimming that can be mistakenly ascribed to the foreground star.)

But such mass measurements are not currently possible for planets as diminutive as Kepler 20 e and Kepler 20 f. So Torres and his colleagues used a relatively new software technique called Blender, which calculates the likelihood that what Kepler sees is caused by a planet. They concocted a range of false-positive scenarios to determine how many could produce the observed signal. With help from NASA's Pleiades supercomputer, the researchers analyzed close to a billion different scenarios, Torres says. The analysis found that Kepler 20 e is 3,400 times more likely to be a planet than a false positive; the planet-to-fake-out ratio for Kepler 20 f is 1,370.

Those numbers make a solid case for both objects as genuine planets. But in the absence of a measurement of the planets' masses, their compositions remain unknown. Given the comparable dimensions of both newfound planets and Earth, a similar composition of silicate and iron is a possibility for either world, the researchers say.

Source: http://rss.sciam.com/click.phdo?i=854087cfb116f3623ff18f6fb321d28d

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Monday, December 19, 2011