শুক্রবার, ১০ মে, ২০১৩

Microsoft bringing white space internet, Windows 8 hardware to Tanzania

Microsoft bringing white space internet, Windows 8 hardware to Tanzania

It's not just Bill Gates who has a benevolent eye turned towards Africa, as Microsoft has launched the second stage of its 4Afrika initiative in Tanzania. Redmond has teamed up with local provider UhuruOne to roll out white space broadband to the University of Dar es Salaam and is working with banks to help students get loans to buy Windows 8 hardware. Microsoft will also employ some students as on-campus support staff, offering training and qualifications to help them in the future. While the press release doesn't mention the discounted Huawei W1 that Microsoft is offering in Kenya, we can only assume Tanzanians will get the same offer -- fair's fair, after all.

[Original image credit: Alexander Landfair / Wikimedia Commons]

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Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/LEj7n6pp9DU/

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Disney drops bid to trademark Day of Dead name

SANTA ANA, Calif. (AP) ? Disney has dropped an effort to trademark "Dia de los Muertos," the name of the traditional "Day of the Dead" holiday celebrated by millions in Mexico and the U.S.

The company announced Tuesday that it was withdrawing a trademark request it made on May 1 to the U.S. Patent and Trademark Office.

The application prompted online criticism and petitions.

"What were they thinking?" Genevieve Barrios Southgate, director of community programs at Bowers Museum in Santa Ana, told the Orange County Register (http://bit.ly/ZFGuq5 ).

"Disney obviously responded to public pressure," she said. "I guess that's what happens when you don't have culturally sensitive people as your advisers."

Many Mexicans and Mexican-Americans observe the November holiday, which honors deceased relatives and loved ones. Traditions include cleaning and decorating graves, leaving gift offerings for the dead and building elaborate shrines decorated with sugar skulls and marigolds.

Disney Enterprises Inc. hoped to secure name rights for merchandise such as snack foods and Christmas ornaments as it partners with Pixar Animation Studios Inc. to create an animated movie inspired by the holiday.

"Disney's trademark filing was intended to protect any potential title for our film and related activities," a company statement said. "It has since been determined that the title of the film will change and therefore we are withdrawing our trademark filing."

Disney was trying to infringe "on something that is so uniquely Mexican and Mexican-American," Alejandro Gradilla, chairman of the Chicana and Chicano Studies Department at California State University, Fullerton, told the Register. "I don't think this will be the last time we hear about a company trying to copyright a holiday."

Had Disney won the trademark, it might have given the company exclusive rights to use the name on merchandise, but it wouldn't necessarily have prevented holiday events, an attorney told the Arizona Republic (http://bit.ly/12g39v7 )

"It doesn't mean they can stop anyone else from putting on a Dia de los Muertos celebration or anything on those lines," Michael Campillo said. "They could stop someone from putting out a movie with the same name, or other merchandise."

However, Disney erred in trying to trademark a commonly used phrase, he said.

"It seems odd that they would go out of their way to upset the consuming public," Campillo said, "a large part of which they're trying to court for business."

Two years ago, Disney was fiercely criticized for attempting to trademark the name "SEAL Team 6" days after that elite U.S. Navy team killed Osama bin Laden. The company later withdrew the application.

___

Information from: The Orange County Register, http://www.ocregister.com

Source: http://news.yahoo.com/disney-drops-bid-trademark-day-dead-name-130934548.html

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Heady mathematics: Describing popping bubbles in a foam

May 9, 2013 ? Bubble baths and soapy dishwater, the refreshing head on a beer and the luscious froth on a cappuccino. All are foams, beautiful yet ephemeral as the bubbles pop one by one.

Two University of California, Berkeley, researchers have now described mathematically the successive stages in the complex evolution and disappearance of foamy bubbles, a feat that could help in modeling industrial processes in which liquids mix or in the formation of solid foams such as those used to cushion bicycle helmets.

Applying these equations, they created mesmerizing computer-generated movies showing the slow and sedate disappearance of wobbly foams one burst bubble at a time.

The applied mathematicians, James A. Sethian and Robert I. Saye, will report their results in the May 10 issue of Science. Sethian, a UC Berkeley professor of mathematics, leads the mathematics group at Lawrence Berkeley National Laboratory (LBNL). Saye will graduate from UC Berkeley this May with a PhD in applied mathematics.

"This work has application in the mixing of foams, in industrial processes for making metal and plastic foams, and in modeling growing cell clusters," said Sethian. "These techniques, which rely on solving a set of linked partial differential equations, can be used to track the motion of a large number of interfaces connected together, where the physics and chemistry determine the surface dynamics."

The problem with describing foams mathematically has been that the evolution of a bubble cluster a few inches across depends on what's happening in the extremely thin walls of each bubble, which are thinner than a human hair.

"Modeling the vastly different scales in a foam is a challenge, since it is computationally impractical to consider only the smallest space and time scales," Saye said. "Instead, we developed a scale-separated approach that identifies the important physics taking place in each of the distinct scales, which are then coupled together in a consistent manner."

Saye and Sethian discovered a way to treat different aspects of the foam with different sets of equations that worked for clusters of hundreds of bubbles. One set of equations described the gravitational draining of liquid from the bubble walls, which thin out until they rupture. Another set of equations dealt with the flow of liquid inside the junctions between the bubble membranes. A third set handled the wobbly rearrangement of bubbles after one pops.

Using a fourth set of equations, the mathematicians solved the physics of a sunset reflected in the bubbles, taking account of thin film interference within the bubble membranes, which can create rainbow hues like an oil slick on wet pavement. Solving the full set of equations of motion took five days using supercomputers at the LBNL's National Energy Research Scientific Computing Center (NERSC).

The mathematicians next plan to look at manufacturing processes for small-scale new materials.

"Foams were a good test that all the equations coupled together," Sethian said. "While different problems are going to require different physics, chemistry and models, this sort of approach has applications to a wide range of problems."

The work is supported by the Department of Energy, National Science Foundation and National Cancer Institute.

Video: http://www.youtube.com/watch?feature=player_embedded&v=ciciWBz8m_Y

Source: http://feeds.sciencedaily.com/~r/sciencedaily/strange_science/~3/PK5ArTLDoOc/130509142100.htm

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বৃহস্পতিবার, ৯ মে, ২০১৩

Bill to create pilot insurance program for student athletes at risk of ...

A bill to create an optional pilot insurance program that would help cover students who are at risk of concussions in sports practice passed into the Senate on Wednesday.

The bill passed with a close vote of 91 ?ayes? and 53 ?nays? ? many no?s coming from conservative Republicans such as Rep. Brandon Creighton, R-Conroe, and Rep. Jonathan Stickland, R-Bedford.

Originally the bill by Brownsville Democrat Eddie Lucio III was supposed to limit the amount of full-contact practices middle and high school teams could hold.

Lucio accepted an amendment and told the House today he?s heard no more complaints about the bill in its new form. It will cost $100,000 to implement and has been added to the House budget bill.

You can read more about the bill from yesterday?s blog here.

This entry was posted in Legislature 2013 and tagged concussion, hb 887, lucio by Claire Cardona. Bookmark the permalink.

Source: http://trailblazersblog.dallasnews.com/2013/05/bill-to-create-pilot-insurance-program-for-student-athletes-at-risk-of-concussions-passes-to-senate.html/

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Air Force strips 17 officers of power to launch ICBMs

WASHINGTON (AP) ? The Air Force stripped an unprecedented 17 officers of their authority to control ? and, if necessary, launch ? nuclear missiles after a string of unpublicized failings, including a remarkably dim review of their unit's launch skills. The group's deputy commander said it is suffering "rot" within its ranks.

"We are, in fact, in a crisis right now," the commander, Lt. Col. Jay Folds, wrote in an internal email obtained by The Associated Press and confirmed by the Air Force.

Asked about this at a Senate hearing Wednesday, Air Force Secretary Michael Donley, the service's top official, explained the problem by stressing that launch control officers are relatively junior in rank ? lieutenants and captains ? and need to be reminded continually of the importance of "this awesome responsibility" for which they have been trained.

Donley said commanders must "ride herd" on the launch crews, and he said the Minot revelation shows that the Air Force has strengthened its inspection system. He said he is confident that the nuclear missile force is secure.

Sen. Richard Durbin, chairman of the Senate Appropriations defense subcommittee, expressed outrage, saying the AP report revealed a problem that "could not be more troubling."

At the Pentagon, Defense Secretary Chuck Hagel was briefed on the Minot matter by his senior staff and asked for additional information, according to his spokesman, George Little.

The tip-off to trouble was a March inspection of the 91st Missile Wing at Minot Air Force Base, N.D., which earned the equivalent of a "D'' grade when tested on its mastery of Minuteman III missile launch operations. In other areas, the officers tested much better, but the group's overall fitness was deemed so tenuous that senior officers at Minot decided, after probing further, that an immediate crackdown was called for.

The Air Force publicly called the inspection a "success."

But in April it quietly removed 17 officers at Minot from the highly sensitive duty of standing 24-hour watch over the Air Force's most powerful nuclear missiles, the intercontinental ballistic missiles that can strike targets across the globe. Inside each underground launch control capsule, two officers stand "alert" at all times, ready to launch an ICBM upon presidential order.

"You will be a bench warmer for at least 60 days," Folds wrote.

The 17 cases mark the Air Force's most extensive sidelining ever of launch crew members, according to Lt. Col. Angie Blair, a spokeswoman for Air Force Global Strike Command, which oversees the missile units as well as nuclear-capable bombers. The wing has 150 officers assigned to missile launch control duty.

Appearing with Donley at Wednesday's Senate hearing, the Air Force chief of staff, Gen. Mark Welsh, said Folds and other senior commanders at Minot removed the 17 launch crew members after determining that they had "more of an attitude problem than a proficiency problem." He said he endorsed their handling of the problem.

The trouble at Minot is the latest in a series of setbacks for the Air Force's nuclear mission, highlighted by a 2008 Pentagon advisory group report that found a "dramatic and unacceptable decline" in the Air Force's commitment to the mission, which has its origins in a Cold War standoff with the former Soviet Union.

In 2008, then-Defense Secretary Robert Gates sacked the top civilian and military leaders of the Air Force after a series of blunders, including a bomber's mistaken flight across the country armed with nuclear-tipped missiles. Since then the Air Force has taken numerous steps designed to improve its nuclear performance.

The email obtained by the AP describes a culture of indifference, with at least one intentional violation of missile safety rules and an apparent unwillingness among some to challenge or report those who violate rules.

In response to AP inquiries, the Air Force said the lapses never put the security of the nuclear force at risk. It said the officers who lost their certification to operate ICBMs are now getting more training with the expectation that they will return to normal duty within about two months. The missiles remain on their normal war footing, officials said.

Although sidelining 17 launch officers at once is unprecedented, the Air Force said stripping officers of their authority to control nuclear missiles happens to "a small number" of officers every year for a variety of reasons.

In addition to the 17, possible disciplinary action is pending against one other officer at Minot who investigators found had purposefully broken a missile safety rule in an unspecified act that could have compromised the secret codes that enable the launching of missiles, which stand on high alert in underground silos in the nation's midsection. Officials said there was no compromise of missile safety or security.

Folds is deputy commander of the 91st Operations Group, whose three squadrons are responsible for manning the wing's 15 Minuteman III launch control centers.

Advising his troops on April 12 that they had "fallen," Folds wrote that drastic corrective action was required because "we didn't wake up" after an underwhelming inspection in March that he said amounted to a failure, even though the unit's overall performance technically was rated "satisfactory." That is two notches below the highest rating.

"And now we're discovering such rot in the crew force that your behavior while on alert is accepting of" weapons safety rule violations, possible code compromises and other failings, "all in the name of not inconveniencing yourselves," Folds wrote.

Folds also complained about unwarranted questioning of orders from superior officers by launch crews and failure to address superiors with the proper respect.

"We are breaking you down, and we will build from the ground up," Folds added. He later wrote, "It takes real leaders to lead through a crisis and we are, in fact, in a crisis right now."

He told his subordinates, "You must continue to turn over the rocks and find the rot."

When the AP inquired about the Folds email, the Air Force arranged a telephone interview with one of Folds' superiors, Col. Robert Vercher, commander of the 91st Missile Wing. The wing is one of three that operate the nation's fleet of 450 Minuteman III missiles; the two others are at Malmstrom Air Force Base, Mont., and F.E. Warren Air Force Base, Wyo.

"We are frustrated anytime we're performing less than we expect of ourselves," Vercher said, adding that he and other senior officers are implementing an aggressive and innovative plan to restore a record of high performance among launch control officers.

"There was a problem," Vercher said. "And we will fix it."

Vercher said Folds was expressing frustration.

"That is a very passionate leader embarrassed by a performance below our expectation," Vercher said, adding that Folds was disappointed by the inspection, which was by the inspector general of the Air Force Global Strike Command.

Vercher said Folds was telling his officers, in effect, "Quite frankly, you guys should all be embarrassed that in an area that's important, you passed but you were rated as very close to not passing, and that's not acceptable."

The inspection area to which Vercher referred was proficiency at operating the missile launch simulator and responses to written questions about procedures. Their performance was rated "marginal," which Vercher said is the equivalent of a "D'' grade. The inspector's office told the AP that "marginal" is a passing rating, "but attention is needed from leadership to address issues before they become unsatisfactory."

"Nobody is comfortable with that," Vercher said.

The launch simulator is used in testing for inspection because, for obvious reasons, they can't perform an actual missile launch.

Exposure of shortcomings within Vercher's unit recalls an earlier series of stunning mistakes by other elements of the nuclear force, including the August 2007 incident in which an Air Force B-52 bomber flew from Minot to Barksdale Air Force Base, La., without the crew realizing it was armed with six nuclear-tipped cruise missiles. One outcome of the incident was the creation of Global Strike Command in January 2009 as a way of improving management of the nuclear enterprise.

Bruce Blair, who served as an Air Force ICBM launch control officer in the 1970s and is now a research scholar at Princeton University, said the Folds email points to a broader problem within the nuclear weapons force.

"The nuclear air force is suffering from a deep malaise caused by the declining relevance of their mission since the Cold War's end over 20 years ago," Blair said in an interview. "Minuteman launch crews have long been marginalized and demoralized by the fact that the Air Force's culture and fast-track careers revolve around flying planes, not sitting in underground bunkers baby-sitting nuclear-armed missiles."

Blair is co-founder of Global Zero, an international group that advocates the eventual elimination of nuclear weapons.

___

Follow Robert Burns on Twitter at http://www.twitter.com/robertburnsAP

Source: http://news.yahoo.com/ap-exclusive-air-force-sidelines-17-icbm-officers-070914385.html

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বুধবার, ৮ মে, ২০১৩

Groupon's Q1 Results: Beats With $601.4 Million In Revenue, Stock Up 11% In After-Hours Trading

Groupon-Logo1Groupon just reported its earnings for its first financial quarter of 2013. The company, which is still looking for a new CEO after the ouster of Andrew Mason in February, posted a $0.01 loss per share but says its non-GAAP EPS excluding stock-based compensations was $0.03. Its revenue was significantly higher than expected with $601.4 million in sales, compared to $0.02 earnings per share (EPS) on $559.3 million of revenue in the year-ago quarter. Wall Street clearly likes these numbers. The stock is already?up over 11%?and currently trading around $6.23. The expectation among financial analysts was that the company would report an year-over-year sales growth of 5.3% and an EPS of $0.03 on revenue of $588.92 million for this quarter (with a high very optimistic high estimate of $618.5). Last quarter, Groupon reported $638.8 million revenue, buoyed by a strong holiday season, but the company still posted an operating loss of $19.9 million and a loss per share of $0.12. “We are encouraged by our results, as our local revenues accelerated and our margins improved over the prior quarter,” said Eric Lefkofsky, Chairman and co-CEO of Groupon. “We had record mobile performance as 45% of our North American transactions came from mobile in March, and more than 7 million people downloaded our apps in the quarter.? One of the main indicators for Groupon’s health has long been gross billings – a reflections of how much money the company has collected from its customers for Groupons it has sold. Last quarter, gross billings increased 24% to $1.52 billion. Gross billing for this quarter was $1.41 billion and the company says it has $1.2 billion in cash and cash equivalents. In the last quarter, Groupon also reported that it had 41 million active customers, up 22% quarter-over-quarter and that it was handling about 37,000 active deals at any given time. In the last quarter, Groupon says the number of active customers grew to 41.7 million – a 13% year-over-year growth but just a minor increase from the last quarter. Groupon has obviously been through a somewhat tumultuous time recently. The company’s ouster of CEO Andrew Mason after a number of disappointing quarters, however, seems to have brought some stability back to the company. Its share price remains low, though it’s up from its all-time low of $2.60. Currently, the stock is trading at around $5.60. After Mason’s exit, executive chairman Eric Lefkofsky

Source: http://feedproxy.google.com/~r/Techcrunch/~3/yNrwwF3SjWo/

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শনিবার, ৪ মে, ২০১৩

Five 'sudden symptoms' of stroke: Recognizing these could save a life ? even a young life

May 1, 2013 ? Stroke is the fourth-leading cause of death in the United States. Each year an estimated 795,000 people in this country experience a stroke.* That's approximately the equivalent of every man, woman and child living in Anaheim and Long Beach combined. But did you know that stroke is also the No. 1 cause of adult disability?

Even more surprising, stroke is no longer a disease only of the elderly. Nearly 20 percent of strokes occur in people younger than age 55, and over the past decade, the average age at stroke occurrence has dropped from 71 to 69.

"The good news," says Patrick D. Lyden, MD, chair of Neurology and director of the Stroke Program at Cedars-Sinai Medical Center, "is that quickly recognizing the signs of stroke and seeking immediate medical care from stroke specialists can minimize the effects of the disease or even save a life. And just as important as knowing the symptoms is the knowledge that regardless of an individual's age, those symptoms need to be treated as the emergency that they are."

If you see any one of these "Five Sudden, Severe Symptoms," call 911 -- regardless of the victim's age.

? Sudden numbness or weakness of the face, arm or leg on one side of the body.

? Sudden confusion, trouble speaking or understanding.

? Sudden trouble seeing on one side.

? Sudden, severe difficulty walking, dizziness, loss of balance or coordination.

? Sudden, severe headache with no known cause.

It is important to emphasize the words "sudden" and "severe" and the number "one." Any of these symptoms can occur in a mild, fleeting way and not be worrisome, but if any one of them comes on suddenly and is quite severe, it could signal the onset of a stroke, which increasingly is described as a "brain attack," because like a heart attack, a stroke requires immediate action to improve the odds against disability and death.

Time is brain

The National Stroke Association estimates that two-thirds of stroke survivors have some disability.

"Clot-busting" drugs make it possible in some cases to stop a stroke in progress and even reverse damage. But the crucial element is time. If given within three hours of onset, the drugs improve outcomes by about 30 percent.

Not every hospital or stroke center has the facilities, staff or resources to provide complete care for every stroke patient, but many hospitals and health authorities are collaborating to establish regional stroke-treatment networks to be sure that even the most complex cases are rapidly transferred to a center with the needed level of care.

Still, no amount of readiness can make a difference unless someone recognizes the symptoms and calls 911.

*Centers for Disease Control and Prevention (CDC)

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The above story is reprinted from materials provided by Cedars-Sinai Medical Center.

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Source: http://feeds.sciencedaily.com/~r/sciencedaily/health_medicine/heart_disease/~3/ncsNCeykfDs/130502093524.htm

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