Tuesday, April 30, 2013

Older is wiser: Study shows software developers' skills improve over time

Apr. 29, 2013 ? There is a perception in some tech circles that older programmers aren't able to keep pace with rapidly changing technology, and that they are discriminated against in the software field. But a new study from North Carolina State University indicates that the knowledge and skills of programmers actually improve over time -- and that older programmers know as much (or more) than their younger peers when it comes to recent software platforms.

"We wanted to explore these perceptions of veteran programmers as being out of step with emerging technologies and see if we could determine whether older programmers are actually keeping up with changes in the field," says Dr. Emerson Murphy-Hill, an assistant professor of computer science at NC State and co-author of a paper on the research. "And we found that, in some cases, veteran programmers even have a slight edge."

The researchers looked at the profiles of more than 80,000 programmers on a site called StackOverflow, which is an online community that allows users to ask and answer programming questions. The site also allows users to rate the usefulness of other users' questions and answers. Users who are rated as asking good questions and providing good answers receive points that are reflected in their "reputation score." The higher an individual's reputation score, the more likely it is that the user has a robust understanding of programming issues.

For the first part of the study, the researchers compared the age of users with their reputation scores. They found that an individual's reputation increases with age, at least into a user's 40s. There wasn't enough data to draw meaningful conclusions for older programmers.

The researchers then looked at the number of different subjects that users asked and answered questions about, which reflects the breadth of their programming interests. The researchers found that there is a sharp decline in the number of subjects users weighed in on between the ages of 15 and 30 -- but that the range of subjects increased steadily through the programmers' 30s and into their early 50s.

Finally, the researchers evaluated the knowledge of older programmers (ages 37 and older) compared to younger programmers (younger than 37) in regard to relatively recent technologies -- meaning technologies that have been around for less than 10 years.

For two smartphone operating systems, iOS and Windows Phone 7, the veteran programmers had a significant edge in knowledge over their younger counterparts. For every other technology, from Django to Silverlight, there was no statistically significant difference between older and younger programmers.

"The data doesn't support the bias against older programmers -- if anything, just the opposite," Murphy-Hill says.

The paper, "Is Programming Knowledge Related To Age?," will be presented May 18 at the 10th Working Conference on Mining Software Repositories, sponsored by IEEE and ACM in San Francisco, Calif. Lead author of the paper is Patrick Morrison, a Ph.D. student at NC State.

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The above story is reprinted from materials provided by North Carolina State University.

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


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/x83r5bdODrA/130429114826.htm

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Switzerland shuts the door on EU migrants: A new 'us vs. them' in Europe?

News that Switzerland is capping residence permits for Western Europeans reached the Monitor's Europe bureau chief as she was having her own intolerable immigration experience.

By Sara Miller Llana,?Staff writer / April 25, 2013

A cafe is seen in Zurich is seen in this photo taken April 18.

Arnd Wiegmann/Reuters/File

Enlarge

The anti-immigration class across Europe has found many new adherents as of late, especially in the most economically devastated countries, like Greece and Italy. But now these Europeans might themselves become the unwelcome migrants, at least in Switzerland.

Skip to next paragraph Sara Miller Llana

Europe Bureau Chief

Sara Miller Llana?moved to Paris in April 2013 to become the Monitor's Europe Bureau?Chief. Previously she was the?paper's?Latin America Bureau Chief, based in Mexico City, from 2006 to 2013.

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As I happened to be standing in the most intolerable immigration line that I've ever faced ? more on that later ? I read on my Twitter account that the Swiss government on Wednesday announced a new policy to cap residence permits for all of Western Europe. Switzerland, which is not part of the EU but joined the Schengen bloc that allows freedom of movement of people across European borders, says that it is being overwhelmed by arrivals from across the continent, to the tune of 80,000 people each year.

So it is invoking a ?safeguard clause? it negotiated during the 1999 Schengen treaty talk, which it already implemented for eight Central and Eastern European states. Now, as of May 1, residence permits for the citizens of 17 older EU states, from Germany to Spain, will be capped at 53,700 for a year.

According to the EU Observer, the Swiss said that the million-plus EU residents who live in the country have "had a positive impact ? in particular in terms of consumer spending and on the construction industry," but that restrictions are ?needed to make immigration more acceptable to society.?

The move drew immediate criticism from Brussels. ''The measures disregard the great benefits that the free movement of persons brings to the citizens of both Switzerland and the EU,? Catherine Ashton, EU foreign policy chief, said in a statement.

Is this a new manifestation of intolerance in Europe? The levels of resentment continent-wide against the migrants from Africa and the Middle East are already clearly documented, but in the midst of crisis, is Europe even excluding Europe? And what does that mean for identity and equality moving forward?

The possibility of a new, intra-European divide struck a chord for me, as I experienced my own "us vs. them" moment in France today.

Well, more than a moment. Eight hours, in fact.

That's how long I waited in a Paris prefecture along with Moroccans, Romanians, Malians, Senegalese, Tunisians, and Peruvians ? most of us, like me, there only to get information about what we needed to have with us, only to return and stand in line again.

I got to know my fellow immigrants well as we stood outside. Some around me had been in this line before, but were told they were missing a translation, a photocopy, or any of myriad document requirements that are not posted in their totality anywhere on the Internet ? or even on the wall of the prefecture where we line up ? but rather seem to be, at least from my informal surveys today, requested at the whim of whichever officer is behind the desk. One woman was told to bring back her CV.

Some of my linemates felt the French immigration officials were being deliberately obstructionist.

?They don?t want us to get the carte de sejour,? said the Malian, referring to the permission that allows foreigners to reside in France (and, with it, the right to tap into the country?s amazing social security system).

?They do everything they can to hold us back,? said the Romanian, who was on her third trip here ? and the third day lost on her job as a cleaning woman. Today, she was told that the pay stub she brought didn?t have the minimum number of hours on it, so she needed to bring in another stub. Another lost day of productivity for this poor woman.

Regardless of the motivations, one can see the "us vs. them" motif very clearly at the prefecture. On the one side, masses desperate to get in, and feeling unwelcome all the while. And on the other side of the glass wall, a society wanting to protect a social system that is replicated in few other places in the world.

By the end of the day in the unforgiving sun, some people were clearly losing their cool, me among them. (I, an American, was more indignant about the inefficiency than most, which makes me wonder if that?s a nationality trait, but that's a subject for another time.)

?But this can?t be!? I kept saying. ?How can people waste an entire day in a line ? and for nothing! Just to come back and stand in the line again??

?Welcome to France,? said the Malian, smiling.

Source: http://rss.csmonitor.com/~r/csmonitor/globalnews/~3/oDdxIU-utNE/Switzerland-shuts-the-door-on-EU-migrants-A-new-us-vs.-them-in-Europe

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S&P 500 reaches new high, led by tech

NEW YORK (AP) ? Technology companies led the stock market higher Monday, pushing the Standard & Poor's 500 index above the all-time closing high it reached earlier this month.

A pair of strong economic reports also encouraged investors. Wages and spending rose in the U.S. last month, and pending home sales hit their highest level in three years.

Shortly before 1:30 p.m. Eastern time, the S&P 500 index was up 12 points at 1,594, a gain of 0.7 percent. That put the index above the record closing high of 1,593.36 it reached on April 11.

The Dow Jones industrial average rose 96 points to 14,808, a gain of 0.7 percent. Microsoft and IBM were among the Dow's best performers, rising 2 percent each.

Concerns about weak business spending and slower overseas sales have cast a shadow over big tech firms, said Marty Leclerc, the managing partner of Barrack Yard Advisors, an investment firm in Bryn Mawr, Pa. Revenue misses from IBM and other big tech companies have highlighted the industry's vulnerability to the world economy. But Leclerc thinks tech companies with steady revenue and plenty of cash look appealing over the long term.

Information technology stocks rose the most of the 10 industry groups in the S&P Monday, up 1.5 percent. It's the only group that remains lower over the past year, down 2 percent, versus the S&P 500's gain of 14 percent.

The Nasdaq composite rose 32 points at 3,311, a rise of 1 percent. Apple, the biggest stock in the index, rose 3.5 percent to $431.95.

The number of Americans who signed contracts to buy homes reached the highest level since April 2010, according to the National Association of Realtors. Back then, a tax credit for buying houses had lifted sales. Americans' spending and income both edged up last month, the government reported Monday.

Moody's and Standard & Poor's parent company McGraw-Hill surged following news that the ratings agencies settled lawsuits dating back to the financial crisis that accused them of concealing risky investments. McGraw-Hill gained 6 percent to $54.80, while Moody's jumped 10 percent to $61.02, the biggest gain in the S&P 500.

Manufacturer Eaton Corp. rose 5 percent to $61.31 after reporting that its quarterly net income jumped, beating Wall Street's estimates. The results were helped by its acquisition of Cooper Industries, an electrical equipment supplier.

In the market for government bonds, the yield on the 10-year Treasury note slipped to 1.66 percent, close to its low for the year. That's down from 1.67 percent late Friday.

Source: http://news.yahoo.com/p-500-reaches-high-led-tech-173611735.html

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Sunday, April 28, 2013

?Spring Training? Is an Experiment in Full-Body Art | Triangle Arts ...

SpringTraining-UNIVERSES

PlayMakers Repertory Company and Carolina Performing Arts are presenting the world premiere of ?Spring Training,? written and performed by Universes, on April 24-28 in the Elizabeth Price Kenan Theatre

Coming-of-age stories or the ?bildungsroman? are known for being brutally honest and intense. PlayMakers Repertory Company?s second stage series production of Spring Training is as honest and intense as a fan of the genre might expect, but it is not without its flaws.

The show features four artists presenting song and movement, interspersed with telling dramatic monologues that focus on what it means to be a minority in America, both in the changing currents of the past and in today?s not-so-different-as-one-might-expect world. ?The monologues are centered upon hispanic Ricky, young and innocent Trevor, Miss Geneva Maybell Martin, and a young hispanic girl who has lost her mother to murder. All of these characters, as the story shows, have been through life at its hardest and have lived to tell about it. While the monologues are filled with beautiful imagery?think a brown paper bag communion?poetic language, and hauntingly detailed place settings, the presentation itself falls disappointingly short.

All of the perfomers are on-book, a fact that could be understood and even overlooked if it didn?t cause noticeable stumbling and cast-confusion throughout. Furthermore, the performance?s symoblic moments, which have the potential to be poignant, would have hit harder if they weren?t so hammered in towards the end.

All of this is not to say, however, that the production doesn?t have merit. One gets the feeling that with a little more effort, the performers could have delivered a powerful message about the current state of our country, its educational system, and how we deal with one another in general. Speaking more positively, however, the artists do incorporate their entire bodies into the production. Clapping hands turn into the baking of goods that one character references, and seamless transitions abound throughout. Though beautifully written, Universes? Spring Training has a way to go before it can have the impact on viewers that the writing demands.

PlayMakers Repertory Company presents SPRING TRAINING, a world premiere by Universes at 7:30 p.m. April 27 and 2 and 7:30 p.m. April 28 in the Elizabeth Price Kenan Theatre in the Center for Dramatic Art, 120 Country Club Rd., Chapel Hill, NC 27514, on the University of North Carolina at Chapel Hill campus.

TICKETS: $15-$40 ($10 UNC students and $12 other students).

BOX OFFICE: 919-962-PLAY or http://www.playmakersrep.org/tickets/.

GROUP RATES (10+ tickets): 919-843-2311, gerdts@email.unc.edu, or http://www.playmakersrep.org/tickets/groupsales.aspx.

SHOW: http://www.playmakersrep.org/springtraining.

VIDEO PREVIEW: https://www.youtube.com/watch?feature=player_embedded&v=aZWKbKXhZoo.

NEWS RELEASE: http://uncnews.unc.edu/content/view/5979/66/.

PRESENTERS:

PlayMakers Repertory Company: http://www.playmakersrep.org/.

Carolina Performing Arts: https://www.carolinaperformingarts.org/.

BLOG (PlayMakersPage to Stage): http://playmakersrep.blogspot.com/.

VENUE: http://www.playmakersrep.org/aboutus/kenan.

DIRECTIONS: http://www.playmakersrep.org/visitorinfo.

PARKING: http://playmakersrep.org/visitorinfo/currentparking.

OTHER LINKS:

Spring Training (play): http://www.universesonstage.com/page11/page49/index.html (official web page).

Universes (poet-performers): http://www.universesonstage.com/ (official website) and http://en.wikipedia.org/wiki/Universes_%28poetic_theatre_ensemble%29 (Wikipedia).

Chay Yew (director): http://www.victorygardens.org/about/chayyewbio.php (Victory Gardens Theater bio) and http://en.wikipedia.org/wiki/Chay_Yew (Wikipedia).
?The Rite of Spring at 100? https://www.theriteofspringat100.org/ (official website).


Tagged as: Carolina Performing Arts, Chay Yew, PlayMakers Rep, PlayMakers Repertory Company, PRC, Spring Training, Universes

Source: http://triangleartsandentertainment.org/2013/04/spring-training-is-an-experiment-in-full-body-art/

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Friday, April 26, 2013

Boston victims face huge bills; donations pour in

Cost of amputating a leg? At least $20,000. Cost of an artificial leg? More than $50,000 for the most high-tech models. Cost of an amputee's rehab? Often tens of thousands of dollars more.

These are just a fraction of the medical expenses victims of the Boston Marathon bombing will face.

The mammoth price tag is probably not what patients are focusing on as they begin the long healing process. But friends and strangers are already setting up fundraisers and online crowd-funding sites, and a huge Boston city fund has already collected more than $23 million in individual and corporate donations.

No one knows yet if those donations ? plus health insurance, hospital charity funds and other sources ? will be enough to cover the bills. Few will even hazard a guess as to what the total medical bill will be for a tragedy that killed three people and wounded more than 260. At least 15 people lost limbs, and other wounds include head injuries and tissue torn apart by shrapnel.

Health insurance, as practically anyone who has ever gotten hurt or sick knows, does not always cover all costs. In the case of artificial limbs, for example, some insurance companies pay for a basic model but not a computerized one with sophisticated, lifelike joints.

Rose Bissonnette, founder of the New England Amputee Association, said that the moment she heard about the bombings, she knew immediately that her organization's services would be needed. The advocacy group helps amputees navigate things such as insurance coverage for artificial limbs.

Bissonnette shared one group member's struggle to get coverage for artificial arms as an example of the red tape some bombing victims could face. The woman "got a call from the insurance company and the person on the other end said, 'How long are you going to need the prosthetic hands?'" Bissonnette recalled.

Bissonnette herself was in a horrific car crash 16 years ago that left her with injuries similar to those facing the Boston victims. Her mangled lower left leg had to be amputated and her right ankle was partially severed. Her five-month hospital stay cost more than $250,000. Health insurance covered all her treatment, rehab and her prosthesis.

Health economist Ted Miller noted that treating just one traumatic brain injury can cost millions of dollars, and at least one survivor has that kind of injury. He also pointed out that the medical costs will include treating anxiety and post-traumatic stress ? "an issue for a whole lot more people than just people who suffered physical injuries," he said.

Adding to the tragedy's toll will be lost wages for those unable to work, including two Massachusetts brothers who each lost a leg, Miller said. They had been roofers but may have to find a new line of work.

Many survivors will also need help with expenses beyond immediate health care, including things like modifying cars for those who lost limbs or remodeling homes to accommodate wheelchairs.

Many survivors live in Massachusetts, a state that requires residents to have health insurance, "which should cover most of their required treatment," said Amie Breton, spokeswoman for Massachusetts' consumer affairs office. "The total cost of that treatment is impossible to calculate at this early stage."

Amputees may face the steepest costs, and artificial legs are the costliest. They range from about $7,200 for a basic below-the-knee model to as much as $90,000 for a high-tech microprocessor-controlled full leg, said Dr. Terrence Sheehan, chief medical officer for Adventist Rehabilitation Hospital in Rockville, Md., and medical director of the Amputee Coalition, a national advocacy group.

Legs need to be replaced every few years, or more often for very active users or those who gain or lose weight. Limb sockets need to be replaced even more often and also cost thousands of dollars each, Sheehan said.

Massachusetts is among about 20 states that require health insurers to pay for prosthetic limbs, but many plans don't cover 100 percent of those costs, Sheehan said. "Most are skimpy beyond basic prosthetics and they have not caught up with current available technology," he said.

"The insurer will use terminology such as 'not medically necessary'" to deny computerized feet or knees that can often make the patient better able to function and more comfortable and safe, Sheehan said.

Some insurers may be willing to make exceptions for the Boston blast survivors.

"We will work to ensure that financial issues/hardship will not pose a barrier to the care that affected members' need," said Sharon Torgerson, spokeswoman for Blue Cross and Blue Shield of Massachusetts, one of the state's largest health insurers.

Harvard Pilgrim Health Care, another big insurer, is changing its policy and will pay for some of the more expensive bionic limbs when there is a demonstrated need, said Dr. Michael Sherman, chief medical officer. He said that 15 blast survivors admitted to hospitals are Harvard Pilgrim customers and that the insurance company is discussing "whether we might absorb some of the copays and deductibles."

"This is a terrorist act, and our only thought here is about providing support," he said.

The 26 hospitals that have treated bombing victims have charity funds that will cover some of the costs, said Tim Gens, executive vice president of the Massachusetts Hospital Association. Some injured residents may be eligible for Massachusetts' public health funds for the uninsured or underinsured. People with huge medical bills they can't afford are eligible, regardless of income.

Gens said hospitals are still focused on treating survivors, not on costs.

"It's an extraordinary shock to so many individuals. The hospitals are working very hard to make sure that each family gets the support they need. Billing is not an issue they're addressing right now," Gens said.

At Massachusetts General Hospital, where 31 victims have gotten treatment, chief financial officer Sally Mason Boemer said bills "create a lot of stress. Our assumption is there will be sources we can tap through fundraising." Boemer added: "Now is not the time to add additional stress to patients."

Bombings survivor Heather Abbott said Thursday she has already gotten offers of help to pay for an artificial leg. The 38-year-old Newport, R.I., woman was waiting in line to get into a crowded bar when the bombs went off.

"I felt like my foot was on fire. I knew I couldn't stand up," she recalled from her hospital bed. Surgeons amputated her left leg below the knee.

A big chunk of charity money for survivors will come from One Fund Boston, established by Boston's mayor and Massachusetts Gov. Deval Patrick.

The fund has gotten more than $20 million in donations. Determining who gets what is still being worked out, but victims' insurance status and place of residence won't be a factor, said Kenneth Feinberg, the fund administrator. He oversaw the 9/11 compensation fund during its first three years, distributing more than $7 billion to 5,300 families and victims.

Grass-roots fundraising efforts include online funds set up by friends and relatives of the victims.

Those victims include Roseann Sdoia, a Boston woman who was near the marathon finish line when the blasts occurred. Sdoia was hit by shrapnel, fire and a tree that became a projectile and injured her left leg, the funding site says. Her right leg had to be amputated above the knee. After several operations, Sdoia has started rehab.

"She is a fighter and her attitude is phenomenal," said her friend and former sorority sister, Christine Hart, who set up the site. More than $270,000 has been raised for Sdoia so far, money that may help pay for an artificial leg, transportation to and from rehab, and modifications to her car or home, Hart said.

The donations will help make sure "that finances are not part of the burden" she has to bear, Hart said.

Other funds have been set up in communities like Stoneham, a Boston suburb that counts at least five current or former residents among the victims. A Stoneham Strong fundraising event is set for Friday evening, with participants asked to circle the high school track to show support for the marathon victims. Hundreds are expected, said organizer Shelly MacNeill.

"The outpouring has been unbelievable," she said.

___

AP Medical Writer Carla K. Johnson contributed to this report.

___

Donations: http://www.onefundboston.org; http://www.gofundme.com/BelieveinBoston

____

AP Medical Writer Lindsey Tanner can be reached at http://www.twitter.com/LindseyTanner

Source: http://news.yahoo.com/boston-victims-face-huge-bills-donations-pour-174957328.html

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New Heartland poll paints a gloomy picture of American mood (Washington Bureau)

Share With Friends: Share on FacebookTweet ThisPost to Google-BuzzSend on GmailPost to Linked-InSubscribe to This Feed | Rss To Twitter | Politics - Top Stories Stories, RSS and RSS Feed via Feedzilla.

Source: http://news.feedzilla.com/en_us/stories/politics/top-stories/301480020?client_source=feed&format=rss

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PFT: EJ Manuel goes to Bills at No. 16, first QB taken

Star Lotulelei, Ti AkauAP

Don Banks of SI.com thinks the Bills? choice of QB E.J. Manuel means the read option will be part of their offense.

Said Dolphins coach Joe Philbin of first-round pick Dion Jordan, ?We?ve got to get our hands on him a little bit (and) work with him a little bit to find out what is his ideal weight and those type of things. I?m not going to sit here and say that we want him to be 265 pounds. We?ll see. Maybe his body isn?t going to function and do some of the things he can at that (weight). He may be able to.?

Patriots DT Vince Wilfork raised $235,000 at his draft party, 10 percent of which will go to marathon bombing victims with the rest to go to fight diabetes.

Two defensive players in the first round suggests coach Rex Ryan?s influence isn?t totally gone with the Jets.

The Ravens website calls trading up in the second round a possibility.

The Bengals didn?t reach for a tackle in the first round with Andre Smith still unsigned.

The Steelers were worried that the Saints would pick LB Jarvis Jones before they had a chance.

WR DeAndre Hopkins is the fourth straight player to come out of college early to be drafted by the Texans in the first round.

Colts DE Bjoern Werner is the first NFL first rounder to call his selection ?unglaublich,? which translates from German as ?beyond belief.?

The Jaguars look to be sitting pretty at the top of the second round.

G Chance Warmack thinks he convinced the Titans to pick him during a private workout.

What?s on the wish list for the Broncos on Friday?

T Eric Fisher said being drafted first overall by the Chiefs was like winning the lottery.

Said Raiders CB D.J. Hayden of whether he thought his career was over when his inferior vena cava was severed last season, ?I did. I definitely did. [It lasted] about a week, and I was just wondering if I would walk straight again. That?s what was on my mind; it was walking straight. I wasn?t worried about life after football. I wasn?t worried about life after college. I was just worried about walking.?

A negative review of the Chargers? decision to draft T D.J. Fluker.

Cowboys owner Jerry Jones said the two players the team considered trading up to get both were off the board in the top 10.

Giants OL Justin Pugh started all 34 games he played at Syracuse.

Even new Eagles T Lane Johnson thought the Dolphins were trading up to take him on Thursday night.

A look at defensive back options for the Redskins in the coming rounds.

Bears G.M. Phil Emery called Kyle Long the most athletic guard to come out in the last 12 years.

John Niyo of the Detroit News believes drafting DE Ziggy Ansah was a risk worth taking for the Lions.

The Packers highlighted the versatility of DE Datone Jones after drafting him on Thursday.

A bold offseason continued with the Vikings grabbing three players in the first round.

Falcons G.M. Thomas Dimitroff proved again that he isn?t afraid to make big moves to secure players he wants.

The Panthers didn?t waste much time before handing in the card picking DT Star Lotulelei in the first round.

Need might not be the driver when the Saints make their next pick in the third round.

The Buccaneers didn?t do any drafting, but they had quite a draft party.

G Jonathan Cooper said he was shocked the Cardinals picked him because he doesn?t read the mock drafts that projected him as a top 10 pick.

Trading up for WR Tavon Austin says that the Rams aren?t rebuilding anymore.

The 49ers ?absolutely? have a player in mind with the 34th pick.

The Seahawks are ready to jump into the draft after a quiet first night.

Source: http://profootballtalk.nbcsports.com/2013/04/25/e-j-manuel-is-the-first-quarterback-selected-by-the-buffalo-bills-with-16th-pick/related/

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Thursday, April 25, 2013

Mammal and bug food co-op in the High Arctic

Apr. 24, 2013 ? Who would have thought that two very different species, a small insect and a furry alpine mammal, would develop a shared food arrangement in the far North?

University of Alberta researchers were certainly surprised when they discovered the unusual response of pikas to patches of vegetation that had previously been grazed on by caterpillars from a species normally found in the high Arctic.

U of A biology researcher Isabel C. Barrio analyzed how two herbivores, caterpillars and pikas, competed for scarce vegetation in alpine areas of the southwest Yukon. The caterpillars come out of their winter cocoons and start consuming vegetation soon after the snow melts in June. Weeks later, the pika starts gathering and storing food in its winter den. For the experiment, Barrio altered the numbers of caterpillars grazing on small plots of land surrounding pika dens.

"What we found was that the pikas preferred the patches first grazed on by caterpillars," said Barrio. "We think the caterpillar's waste acted as a natural fertilizer, making the vegetation richer and more attractive to the pika."

U of A biology professor David Hik, who supervised the research, says the results are the opposite of what the team expected to find.

"Normally you'd expect that increased grazing by the caterpillars would have a negative effect on the pika," said Hik. "But the very territorial little pika actually preferred the vegetation first consumed by the caterpillars."

The researchers say it's highly unusual that two distant herbivore species -- an insect in its larval stage and a mammal -- react positively to one another when it comes to the all-consuming survival issue of finding food.

These caterpillars stay in their crawling larval stage for up to 14 years, sheltering in a cocoon during the long winters before finally becoming Arctic woolly bear moths for the final 24 hours of their lives.

The pika does not hibernate and gathers a food supply in its den. Its food-gathering territory surrounds the den and covers an area of around 700 square metres.

The researchers say they'll continue their work on the caterpillar-pika relationship to explore the long-term implications for increased insect populations and competition for scarce food resources in northern mountain environments.

Barrio was the lead author on the collaborative research project, which was published April 24 in the journal Biology Letters.

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Story Source:

The above story is reprinted from materials provided by University of Alberta, via EurekAlert!, a service of AAAS. The original article was written by Brian Murphy.

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


Journal Reference:

  1. I. C. Barrio, D. S. Hik, K. Peck, C. G. Bueno. After the frass: foraging pikas select patches previously grazed by caterpillars. Biology Letters, 2013; 9 (3): 20130090 DOI: 10.1098/rsbl.2013.0090

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/top_news/~3/apG4-pzYpt8/130424161114.htm

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Nutrino is a virtual nutritionist for iOS, we go hands-on

Nutrino is a virtual nutritionist for iOS, we go handson

As a recovering food addict, I've been told on numerous occasions that washboard abs are created in the kitchen, not in the gym. That's why we were intrigued to take a look at Nutrino, an iOS app that promises a "virtual nutritionist" service to help slice away the adipose from our stomach. We spent some time putting the software through its paces, and if you're thinking of making the leap, head on past the break to learn more.

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Source: Nutrino

Source: http://www.engadget.com/2013/04/25/nutrino-ios-hands-on/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget

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Congress looking for quick fix to flight delays

By Richard Cowan and Doug Palmer

WASHINGTON (Reuters) - U.S. Senate leaders are frantically trying to pull together a plan to alleviate widespread airline flight delays - brought about by last month's automatic federal spending cuts - with legislation that could be voted upon as early as Thursday.

The activity is focused on finding ways to eliminate or ease forced furloughs of air traffic controllers prompted by the spending cuts. The House of Representatives could vote soon after but leaders in that chamber first want to see what the Senate produces, fearing a retreat on this issue could open the door to easing other budget cuts.

One option senators are exploring is attaching legislation to an unrelated Internet sales tax bill currently being debated, a Senate aide said on Thursday.

They are also looking at stand-alone legislation, and are considering giving the Department of Transportation flexibility to transfer existing department funds so that air traffic controllers' salaries can be fully paid, and those periodic furloughs can be stopped.

Another approach would be simply declaring controllers as "essential" personnel who could not be furloughed.

Lawmakers are eager to find a fix before they head out of town for next week's congressional recess. They are concerned about deepening public resentment over the delays caused by the furloughs of controllers.

Airline passengers have grown increasingly irritated over the past week with delays at major hubs like Chicago, New York, Los Angeles and Atlanta. Some have reported multi-hour delays in takeoff times and planes being put in holding patterns in the air, with many pilots blaming furloughs for landing delays.

The National Air Traffic Controllers Association on Thursday said that many of the 1,978 controller trainees are now working full shifts by themselves to help cover staffing shortages.

And airline executives this week ratcheted up their complaints. "This is government not working - capital letters, exclamation point - when we're sitting here holding the traveling public hostage in the midst of sequestration," JetBlue CEO Dave Barger said on a conference call on Thursday.

The FAA has said it had no alternative to furloughing controllers this week after Congress failed to come up with a budget deal that would have averted the $85 billion in across-the-board federal spending cuts.

At the same time, the FAA has emphasized that passenger safety is not at risk. Airlines for America, the trade organization for U.S. airlines, also said on Thursday that the furloughs have not created a safety issue.

According to the Senate aide, the White House is open to Congress dealing promptly with the FAA's funding problem. But the aide said that no decisions had yet been finalized on how to move an FAA measure forward quickly.

Senate Majority Leader Harry Reid on Wednesday proposed replacing the budget reductions by claiming savings from the decrease of war spending, but congressional Republicans have rejected the proposal, saying counting war savings is an accounting gimmick.

A more likely fix may be one of the bipartisan pieces of legislation that would give the DOT flexibility to move around funds to pay air traffic controllers.

"These are simply irresponsible cuts that have real and detrimental impacts on the traveling public, on the airline industry, on the hospitality industry and they will cause widespread delays to the air traffic system," Republican Senator Susan Collins of Maine said on the Senate floor. Collins is behind one of the legislative proposals.

While Republicans are joining the effort for a quick fix, many have been skeptical about whether the White House and FAA are taking advantage of flexibility they already have.

Republicans have accused the Obama administration of maximizing the disruptions to try to shift budget blame on Republicans - an allegation the administration has denied. Republicans have created a Twitter hashtag, #Obamaflightdelays, for people to complain about the delays.

House Oversight Committee Chairman Darrell Issa, a California Republican, and House Transportation Committee Chairman Bill Shuster, a Pennsylvania Republican, on Thursday sent a letter to Transportation Secretary Ray LaHood asking for internal documents discussing budget flexibilities. The DOT did not immediately respond to a request for comment.

However, a congressional aide involved in the original automatic spending cut legislation that was enacted in August 2011 told Reuters that the administration cannot under the law shift money from outside accounts to fund the air traffic controller account.

SEQUESTRATION FALLOUT

The FAA has said it will have to furlough 47,000 employees for up to 11 days through September 30 in order to save $637 million that is required by the "sequestration," automatic spending cuts that started on March 1 for most federal agencies.

Of those 47,000 workers, almost 15,000 are full-time air traffic controllers or trainees.

The FAA issued an update that said more than 863 delays in the system on Wednesday were attributable to staffing reductions resulting from the furloughs.

Another 2,132 delays were attributed to weather and other factors, the FAA said. The agency said it would work with airlines to minimize delays.

Airlines, many of which are reporting earnings this week, have pushed the government to quickly ease the flight delays caused by the furloughs.

Jeff Smisek, chairman and chief executive of United Continental Holdings Inc, said his company's network operations center is working around the clock to minimize the impact of fewer controllers.

"We are disappointed that the FAA chose this path, that maximizes customer disruptions and damage to airlines instead of choosing a less disruptive method to comply with the budget obligations," Smisek said on a conference call.

CLOSED-DOOR TALKS

Thursday's flurry of activity in Washington followed a meeting late on Wednesday with the top Democrat and Republican on the Senate Commerce Committee, LaHood and FAA Administrator Michael Huerta to discuss what steps Congress could take to provide the FAA with the flexibility it needs to cancel the furloughs.

Senate Commerce Committee Chairman Jay Rockefeller, a West Virginia Democrat, and Senator John Thune, a South Dakota Republican, are considering "a few options" that came out of that conversation, but are not ready to discuss details yet, a congressional aide said.

If a fix were to pass the Senate, it is not clear how the House would respond, especially if it is attached to the Internet sales tax bill, which has faced fierce opposition from many online merchants, including eBay Inc and Overstock.com Inc.

Senator Dick Durbin of Illinois, the second-ranking Senate Democrat who is shepherding the Internet sales tax bill through the Senate, told Reuters on Thursday, "We are working on" ways to deal with an FAA funding fix.

But he added that senators have to consider whether exempting some FAA programs from the tough spending-cut law would be unfair to other agencies and their constituents, who also want to get out from under sequestration.

(Reporting by Richard Cowan, with additional reporting by Doug Palmer, Thomas Ferraro, David Lawder, Karen Jacobs and Nivedita Bhattacharjee; Writing by Karey Van Hall; Editing by Vicki Allen, Bill Trott and Cynthia Osterman)

Source: http://news.yahoo.com/senate-weighs-quick-move-stop-airline-flight-delays-144010521.html

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Christian Horner says Red Bull Racing are not happy with 2013 ...

Christian Horner says Red Bull Racing are not happy with 2013 Pirelli tyres ? Formula 1 news

Red Bull Racing team principal, Christian Horner has said that they are not happy with the 2013 Pirelli compound tyres despite their victory in the Bahrain Grand Prix.

Sebastian Vettel of the Milton Keynes based squad scored a marvelous win in the fourth round of the season at Bahrain International Circuit after qualifying for second grid position. The German driver took three pit stops and won the race by a considerable margin from his major rival, Kimi Raikkonen of Lotus.

In contrast, Vettel?s teammate, Mark Webber could only secure 7th place finish after taking a start from the same grid position. The Australian driver could have secured 5th place finish, but he faced a tyre degradation issue due to which he lost two positions towards the end of the race. Many other drivers also faced problems with their tyres because of which they took four pit stops.

Therefore, Horner has asserted that the tyres degrade excessively during the race which has created problems for many contenders in this year?s championship. Besides, he said that the tyres should be improved a little bit to make the sport more interesting.

?We think the tyres are brilliant; we've got absolutely no problem with them and think they should keep the same compounds for all the remaining races!? Horner said. ?No, I think the tyres are still too on an edge. Needing to four-stop in a race I think is a bit too extreme, there's other teams that look like they've got bigger issues than Red Bull with their tyres but you need to speak to them to ask their opinion. But I do feel that the tyres are a little bit too on an edge and just need to come back a little bit.?

In addition, he expressed that they expect a tough competition with Ferrari, Lotus and Mercedes in the season ahead. Nevertheless, he stated that they are extremely pleased with the performance of their drivers in the first four grands prix of the season and they are confidently looking forward to keep on making the essential developments in their car to defend their title.

Source: http://blogs.bettor.com/Christian-Horner-says-Red-Bull-Racing-are-not-happy-with-2013-Pirelli-tyres-Formula-1-news-a214679

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Toronto Travel Bloggers, Who to Watch for at TBEX - The Planet D





We always tell people that Toronto has the best travel community in the world. It amazes me. So many Toronto based Travel Bloggers are at the top of their field. We feel that some of the best travel bloggers, vloggers and industry peeps are based right here in Toronto, and since the entire world travel community is coming to Toronto in June, we wanted to highlight the Toronto Travel Bloggers that you should keep an eye out for and say hello to during the upcoming TBEX conference.

We normally hate doing posts like this. Inevitably someone awesome gets left out and we feel bad. But since TBEX is coming to Toronto in June, we felt compelled to show off our community. There are other amazing Canadian Travel bloggers that we could mention too, but then this post would go on forever. So for now, enjoy our Toronto based only recommendations for your reading pleasure.

Toronto Travel Bloggers

My Life Unteathered?- Alicia Taggio not only puts together amazing travel videos, but she also splits her time between My Life Unteathered and being the Social Media Specialist at FlightCentre.ca. Alicia co-founded the Toronto Travel Massive with Mariellen or Breathe Dream Go and together they have transformed it from a small social gathering to a major industry event. Alicia is someone who gets you excited when you talk to her. She?s filled with ideas, has major connections and knows how social media works. We always say ?This girl gets things done!?

BreatheDreamGo?- Mariellen Ward has a passion for India. She?s been writing about it in both traditional media outlets around the world as well as at her successful travel blog. Recently she changed her niche to expand beyond India to a?meaningful adventure travel blog and has really hit her stride. An influencer and another leader in the industry who has won several awards in writing. And as mentioned above, Mariellen is the co-founder of Toronto Travel Massive with Alicia Taggio.

Travolution?- Before TBEX begins, we get to spend a week with Cristina in Italy as part of the BlogVille Campaign. A graduate of Journalism and Political Science, she turned down her dream job twice. A well rounded journalist she interviewed the likes of Justin Beiber, Tom Cruise and Raine Maida ?of Our Lady Peace?(like Cristina also, one of our favourite bands). She quit it all to become a travel blogger and if anyone can make it, she can. Cristina is also now a part of the people behind the Toronto Travel Massive with Alicia and Mariellen.

JourneyWoman - Evelyn Hannon runs the premiere online travel resource for women. She?s been featured everywhere from Time Magazine and Good Morning America to Reader?s Digest and Canada AM. We?ve known and admired Evelyn since we started travel blogging. Whenever we talk to friends or family oustide of the travel industry, they know of JourneyWoman. They may not know the rest of us, but she?s a household name with 65,000 people subscribing to her newsletter which was featured in People Magazine!

KickTheGrind - If you want to know about how to make travel videos, you want to follow Mike Corey. He has the best travel videos in the industry and it?s only a matter of time until he has his own travel show. His editing is awesome and we?re not the only ones who think so. He?s won several video competitions including the prestigious Cathay Pacific around the World in 80 Days video competition.

The Travel Society?- Our good friend Helen (And as some say, my sister, we look a lot a like) has started a new company The Travel Society. It?s a travel club for adventure travel around the world. That?s our kind of place! It?s so much so that we?re developing custom ThePlanetD tours with Helen for 2014. That will be coming soon, but in the meantime, check out everything there is to offer. We love her latest post?Misadventures in ?Antarctica, where she talks about being on a sinking ship in Antarctica. Yikes! The Travel Society is a boutique travel agency with a subscription based membership of 2000 people. Way to go Helen!

Red Hunt Travel?- Red has been everywhere. He is a travel consultant and social media consultant. He quit his job to travel the world long before it was trendy and has?become an avid travel photographer and has written more than 600 travel articles and newsletters. He?s a former journalist who now works in the world of travel marketing. All that and he still has time to share his spectacular travel stories on Red Hunt Travel.

Savoir Faire Abroad - You may know her from SpunkyGirlMonologues, but Pamela MacNaughten has rebranded and started off 2013 with some major travels through Central America.We first met her in Bangkok where she was helping refugees connect with their families. Pam has a huge heart and has made a living out of travel blogging for several years. She has been featured in Outpost, Travel and Escape and Up Magazines.

The Melly Boo Project ? Melissa is a fabulous gal who is as crazy as we are. From the gorge swing in Zambia to diving with Sharks, she?s another great Canadian Adventurer! I will admit, she?s much more adventurous than us when it comes to eating exotic food. Jellyfish? My oh my! She?s been travelling since 2010, been featured on Daytime TV and was nominated as the best newcomer blog in the Destinology 2012 Travel Blog Awards. We love a girl who is adventurous as we are and maybe one day we?ll get to jump out of something with her too!

Seattles Travel?- Featured on Mashable as one of the best people to follow on Instagram, Seattle Dredge has really made a name for herself. She?s been everywhere from Australia to Iceland and focuses on Adventure Travel. Her latest posts have been focusing on mountains and snow and ice and we?ve been loving following her journey. Our kind of gal indeed!

Have Baby Will Travel - Mom Bloggers have always been way ahead of travel bloggers and Corinne McDermett is definitely ahead of the game. I remember first talking to her a few years ago and was blown away with her ideas and vision. Besides her successful travel blog she?s been featured in traditional media and television such as Canada AM, Breakfast Television, Travel and Leisure and the Disney Channel. She has now started her own consulting company and ?is a family travel specialist for Thomas Cook.

Near Afar - Every time we see Natalie Taylor I just laugh and laugh. There?s something about her energy that makes me smile. A true Toronto Specialist, this is the blog to follow if you need information for the 2013 host city for TBEX ? Toronto. She?s been featured in the Sympatico Blog, Lucky Penny, National Geographic?s Intelligent Traveler and Trip Atlas just to name a few.

TheTraveller World Guide - I just love The Hogga, Aka Lindsay Hogg. Her writing is fresh and funny and this girl is busy. Not only is she the President extraordinaire at the Traveller World Guide where she has brought on two other people to work with the site, she is also?Captain Burrito?at?ChickenChunk?and?Monday Funnies Author?at?Travel and Escape. Funnies Author is a fitting title, whenever I read her stuff, I do it with a huge smile.

SoloTraveler?- Janice Waugh has taken the travel industry by storm, traveling the world speaking about how to make a business out of blogging. She started the Global Bloggers Network and founded The Traveler?s Handbook Series. Janice is always coming up with innovative ideas and is filled with wisdom when it comes to solo travel and the blogging industry. She?s a very giving and caring woman and a mentor to us all.

Professional Hobo ? ?Nora Dunn may have now settled in the Caribbean but she?s a Toronto gal. We actually have something in common, we both worked at YTV. Nora is one of the leading travel blogs on the net. She proved long before the rest of us joined the game that you can live a location independent lifestyle and make money doing it. She?s so financially savvy that she is the senior contributor for Wise Bread, a popular personal finance and frugal living website, she give regular round ups of how much money she made and how she does it and she?s just truly an inspiration.

Backpack with Brock - Brock is currently on an amazing journey through Asia with Viator as their video blogger. He came oh so close to winning $10,000 through Viator last year, but they loved him so much, they brought him back anyway! He?s now traveling Asia with them. Brock not only runs his travel blog, he is also an adventure consultant and entrepreneur who helps others plan their next world backpacking trip. Brock feels like the little brother we never had and is so much fun to be around. I hope he makes it back in time for TBEX so that he can share his adventures with everyone.

Bacon is Magic?- Ayngelina Brogan has slowed down work on her travel blog in recent years to return to her life in PR, but Bacon is Magic is still going strong and she has started working with the Navigate Media Group bringing travel bloggers together to collaborate on projects. Specializing in food, she writes engaging stories.

?A Nerd at Large - Stephanie has already made her living writing about the travel industry for over a decade. She?s now started a Nerd at Large and is a Travel and Escape featured blogger. I?ve been loving her photographs and she even was kind enough to post some right here on our website. Check out Los Angeles in Black and White. Right now Stephanie is in the process of pursuing her goal of trying 1000 new things. Now that makes for an exciting life.

Hopscotch The Globe - Kristen represented us on a press trip last year and ever since this girl has been on fire. We?ve been watching her travel the world working with various tourism boards. She won the VLogger award in Puerto Rico run by our good friends at Diamond PR and her youtube video ?How to Pee Standing Up has received nearly 150,000 views! This girl has an awesome youtube channel and she?s just dynamite!

Girls Getaway - Dian Emery is the managing editor of this popular website. It?s grown to become so big that there are six regular contributors and several guest writers. We?ve had the pleasure of going to Mexico with Dian and meeting her other half. She?s such a gracious and giving lady and it?s awesome to see so much success come her way!

Excellent Vacation Ideas - Melanie is another person who when we get together we just laugh and laugh. A savvy business woman, she has developed an amazing site with Excellent Vacation Ideas. I love talking blogging and website business with her (in between laughing). And value her opinion and advice. If you?re looking for vacation ideas for your next trip, this is the site for you. Her daily questions and inspiration always pop up in my facebook feed too!

KK Adventures ? Okay, Kieren and Karen may be from Britain, but they?ve made Toronto their home and are a huge part of our travel community. They?ve kept their full time jobs while running the blog on the side and have done a great job balancing both. And we?re happy to know that they love exploring their new home?Toronto! Karin has also become a part of the Toronto Travel Massive team joining Cristina in helping Alicia and Mariellen plan events around the city.

Oneika The Traveler - We met Oneika when we ran with the bulls last year while she was a part of the uber popular ?Girls Running with Bulls? Oneika was recently named one of the Top 7 Travel Bloggers to Watch on Twitter and has been featured on National Geographic?s Radar. She?s been to 60 countries on 6 continents and is one fabulous lady. While travel blogging isn?t her full time profession, she?s a high school English Literature and French teacher at international schools, she still manages to take 10 international trips a year and if she wanted to switch to be a full time blogger, she easily could.

Travel and Escape?- Well, you may have noticed that many of the people we?ve mentioned above have been featured on Travel and Escape. Did you know Travel and Escape is based in Toronto? They?ve been a great supporter of the Toronto Travel community and even though they are a Television network, they also keep a good travel blog up and running to. .

So there you have it. That?s our list of Toronto Tavel Bloggers. I?m going to die if I missed someone. If you know me and we missed you, please send us an email. I?ll add you in, somewhere in the middle so nobody will ever know that you weren?t put on in the first place! ;-) I hope you enjoyed these Toronto Travel bloggers, you won?t regret reading any of their blogs. Seriously, we?ve got a great world class community.

Source: http://theplanetd.com/toronto-travel-bloggers-who-to-watch-for-at-tbex/

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Wednesday, April 24, 2013

Booze-Tracking Bluetooth Breathalyzer Counts Down Your Return To Sobriety

An experienced imbiber has a pretty good idea of when they'll return to the land of the sober based on what type, and how much hooch they've consumed. But if you need a more detailed ETA on when you might be able to drive, walk, or even stand again, the BACtrack breathalyzer connects to a smartphone app for a more detailed analysis of your condition. More »
    


Source: http://feeds.gawker.com/~r/gizmodo/full/~3/s4H8jvmqIsw/booze+tracking-bluetooth-breathalyzer-counts-down-your-return-to-sobriety

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Trash Talkin? Tuesday

Trash Talkin’ Tuesday

Model Alessandra AmbrosioAlessandra Ambrosio Caught Grooming in Public?[The Frisky] Amanda Bynes Kicked Out of Gym for Smoking Pot?[HollyWire] Nicole Eggert Injured on Reality Show?[Right Celebrity] Rihanna Smashes a Billboard Record?[The Celebrity Cafe] Kanye West Dazed with Kim Kardashian?[The Blemish] Miley Cyrus Goes Too Short with Her Shorts?[The Huffington Post] Kate Middleton’s Baby Bump is Growing Bigger?[PopCrunch] Justin ...

Trash Talkin’ Tuesday Stupid Celebrities Gossip Stupid Celebrities Gossip News

Source: http://stupidcelebrities.net/2013/04/trash-talkin-tuesday-92/

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Nokia's co-developed high-amplitude mics retain 10-month exclusivity, HTC has to look elsewhere (updated)

Nokia's injunction yesterday has now been made a little more concrete. The Amsterdam district court has handed down a 10-month ban on STMicroelectronics selling its high-amplitude mics to anyone other than the Finnish phone maker. The same dual-membrane microphone is used in both the Lumia 720 and the HTC One, but Nokia (which co-developed and designed the component) had signed a 12-month exclusivity deal with the chipmaker -- a deal that STMicroelectronics apparently thought was only six months long.

According to All About Phones NL, the ruling won't halt sales of One devices already out there, with the court stating that HTC was "blameless" and that it couldn't have known about the contract between Nokia and STMicroelectronics. In short, you'll still be able to buy HTC's flagship in the Netherlands with those dual high-amp mics in tow -- at least for now. We've reached out to both companies for comment, but it's shaping up to be another parts supply woe for HTC's new smartphone.

Update: We've just heard from HTC on this, and its response is largely the same as yesterday's:

"HTC is disappointed in the decision. We are consulting with STM and will decide whether it is necessary to explore alternative solutions in due course. In the meanwhile, we do not expect this decision to have any immediate impact on our handset sales."

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Comments

Via: All About Phones NL

Source: Amsterdam District Court filing

Source: http://www.engadget.com/2013/04/23/nokia-mic-injunction-htc-one/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget

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Saturday, April 20, 2013

FAA approves resumption of Boeing 787 flights

FILE - This Feb. 11, 2013 file photo shows a Boeing 787 flight test jet taxing following a test flight, at Boeing Field, in Seattle. Boeing's beleaguered 787 Dreamliners will be able to resume flights under an order expected to be issued Friday by the Federal Aviation Administration, although the root cause of battery failures on two of the planes is still unknown, according to congressional sources briefed by the agency. (AP Photo/Elaine Thompson, File)

FILE - This Feb. 11, 2013 file photo shows a Boeing 787 flight test jet taxing following a test flight, at Boeing Field, in Seattle. Boeing's beleaguered 787 Dreamliners will be able to resume flights under an order expected to be issued Friday by the Federal Aviation Administration, although the root cause of battery failures on two of the planes is still unknown, according to congressional sources briefed by the agency. (AP Photo/Elaine Thompson, File)

(AP) ? Boeing's beleaguered 787 could be flying again within a week after federal officials approved a fix for its batteries, even though the root cause of a fire on one plane and smoke on another still isn't known.

The Federal Aviation Administration said Friday it would send airlines instructions and publish a notice next week lifting the 3-month-old grounding order that day. Airlines will be able to begin flying the planes again as soon as the new systems are installed and they have approval from safety regulators in their own countries. Dreamliner flights could resume within a week, the agency told members of Congress.

Boeing is eager to get the planes flying. It has stationed 300 workers on 10 teams around the world to do the work, some of it beginning on Friday, 787 chief engineer Mike Sinnett said on a call with reporters. It will take about five days to install the revamped lithium-ion battery system on each plane, he said.

The FAA gave Boeing permission last month to test the revamped system, which includes additional insulation around each of the battery's eight cells to prevent a short circuit or fire in one of the cells from spreading to the others. The new system also includes enhanced venting of smoke and gas from inside the battery to outside the plane. A strengthened box to hold the battery is an effort to ensure that if a fire were to occur, it wouldn't escape to the rest of the plane.

Boeing has completed 20 separate tests of the new system, FAA Administrator Michael Huerta told Congress earlier this week.

The system involved in the emergencies in January had been extensively tested, too.

"We always learn more as we dig deeper into things," Sinnett said. "We have learned a lot about how to test batteries, and to be conservative" in testing.

Boeing had delivered 50 planes to eight airlines in seven countries when a fire erupted in a battery aboard a Japan Airlines 787 parked at Boston's Logan International Airport on Jan. 7. Nine days later another incident forced an emergency landing in Japan by an All Nippon Airways 787. That prompted the FAA and other authorities to ground the entire fleet.

Boeing said new batteries and kits with the parts for the new battery systems have been shipped to Boeing supply centers around the world and are ready to be installed. The 787s will get the fix in approximately the order they were delivered, Boeing said.

The FAA's action directly affects the six 787s flown by United Airlines, the only U.S. airline with the plane. But aviation authorities in other countries are expected to follow suit swiftly. Boeing deferred questions about approval in other countries to those aviation authorities.

United Airlines already has domestic 787 flights scheduled for May 31. Spokeswoman Christen David said no other schedule changes have been made yet. Its launch of Denver-to-Tokyo Narita flights is still planned for June 10, but that will depend on installing the battery fix by then, she said.

"We are mapping out a return-to-service plan, and we look forward to getting our 787s back in the air," she said by e-mail.

LOT Polish Airlines spokesman Marek Klucinski noted that they need permission from the European Aviation Safety Agency to resume flights. He said they hope that a decision on Friday would mean they can resume flights in the middle of next week. LOT has two planes, one in Warsaw and one that was stranded in Chicago by the grounding.

Boeing has orders for 840 of the planes from airlines around the globe. The grounding halted deliveries, which were expected to resume "in the weeks ahead," after it installs the changes on planes at the two factories where they're assembled, Boeing said. It still expects to hit its target of delivering at least 60 787s this year, and that the battery issue "will have no significant impact" on its financial guidance for the year, the company said.

Boeing shares rose $1.84, or 2 percent, to close at $87.96 on Friday.

The plane's grounding on Jan. 16, an enormous black eye for Boeing, marked the first time since 1979 that FAA had ordered every plane of a particular type to stay out of the air for safety reasons.

The 787 is Boeing's newest and most technologically advanced plane. It is the world's first airliner made mostly from lightweight composite materials. It also relies on electronic systems rather than hydraulic or mechanical systems to a greater degree than any other airliner. And it is the first airliner to make extensive use of lithium ion batteries, which are lighter, recharge faster and can hold more energy than other types of batteries.

The 787 has two identical lithium-ion batteries: One near the front of the plane, which powers cockpit electrical systems, the other toward the rear and used to start an auxiliary power unit while the plane is on the ground, among other functions. The rear battery was involved in the fire and gushed smoke on the plane in Boston, which had recently landed after an overseas flight. It was the front battery that failed on the plane in Japan.

Every item that is part of an airplane, down to its nuts and bolts, must be certified as safe before FAA approves that type of plane as safe for flight. The two events have raised questions about why the FAA and Boeing didn't uncover problems with the batteries before the FAA certified the plane as safe for flight in 2011. In recent years, the FAA has relied to a greater extent on designated employees of aircraft makers to conduct the safety testing necessary of certification. Some aviation safety experts have questioned whether FAA has the in-house expertise to oversee the safety of cutting-edge technologies that haven't been in planes before.

Lithium batteries are much more likely to experience uncontrolled high temperatures that can lead to fires if they are damaged, exposed to excessive heat, overcharged or have manufacturing flaws. Despite their safety risks, they are increasingly attractive to aircraft makers as a way to cut weight and thus improve fuel efficiency.

The National Transportation Safety Board is investigating the Boston battery fire and the process by which the FAA certified the 787's batteries were certified as safe. The board has scheduled a two-day hearing beginning Tuesday at which FAA and Boeing officials are slated to testify.

NTSB officials have said the Boston battery fire began with a short circuit in one of the battery's eight cells, leading to uncontrolled temperatures and short-circuits in the rest of the battery's cells. Firefighters who responded to the incident reported dense clouds of white smoke and two small flames on the outside of the box that contained the battery cells.

___

Freed reported from Minneapolis. Associated Press writers Monika Scislowska in Warsaw, Poland, contributed to this report.

___

Follow Joan Lowy on Twitter at http://www.twitter.com/AP_Joan_Lowy

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/f70471f764144b2fab526d39972d37b3/Article_2013-04-19-Boeing-787/id-b026c69b11c146de8cc0b264c205d2d0

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