Thursday, February 28, 2013

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Port city's strikes inspire Egypt's opposition

FILE - In this Friday, Feb. 22, 2013 file photo, Egyptians protesters parade with an effigy of a bearded man, mocking Egypt's Islamist rulers, during day six of the general strike, in Port Said, Egypt. For nearly two weeks, protesters and strikers have shut down much of Egypt?s Mediterranean city of Port Said, filling the streets with one angry rally after another. Opponents of Egypt?s Islamist president are looking to Port Said as a model for stepping up their campaign against him with a possible wave of civil disobedience in other parts of the country. (AP Photo/Nasser Nasser, File)

FILE - In this Friday, Feb. 22, 2013 file photo, Egyptians protesters parade with an effigy of a bearded man, mocking Egypt's Islamist rulers, during day six of the general strike, in Port Said, Egypt. For nearly two weeks, protesters and strikers have shut down much of Egypt?s Mediterranean city of Port Said, filling the streets with one angry rally after another. Opponents of Egypt?s Islamist president are looking to Port Said as a model for stepping up their campaign against him with a possible wave of civil disobedience in other parts of the country. (AP Photo/Nasser Nasser, File)

FILE - In this Thursday, Feb. 21, 2013 file photo, protesters chant anti-President Mohammed Morsi slogans in front of the main court house during the fifth day of a general strike, in Port Said, Egypt. For nearly two weeks, protesters and strikers have shut down much of Egypt?s Mediterranean city of Port Said, filling the streets with one angry rally after another. Opponents of Egypt?s Islamist president are looking to Port Said as a model for stepping up their campaign against him with a possible wave of civil disobedience in other parts of the country.(AP Photo/Nasser Nasser, File)

FILE - In this Thursday, Feb. 21, 2013 file photo, Egyptian employees gesture to protesters gathering outside of the main court house, unseen, shouting that they are evacuating their offices to join the strike activities, during the fifth day of a general strike, in Port Said, Egypt. For nearly two weeks, protesters and strikers have shut down much of Egypt?s Mediterranean city of Port Said, filling the streets with one angry rally after another. Opponents of Egypt?s Islamist president are looking to Port Said as a model for stepping up their campaign against him with a possible wave of civil disobedience in other parts of the country. Arabic on the placard reads, "Port Said court." (AP Photo/Nasser Nasser, File)

FILE - In this Thursday, Feb. 21, 2013 file photo, an Egyptian truck driver shouts at protesters from his vehicle as they blocked the road leading to the east port preventing loaded trucks from leaving the port, during the fifth day of a general strike, in Port Said, Egypt. For nearly two weeks, protesters and strikers have shut down much of Egypt?s Mediterranean city of Port Said, filling the streets with one angry rally after another. Opponents of Egypt?s Islamist president are looking to Port Said as a model for stepping up their campaign against him with a possible wave of civil disobedience in other parts of the country. (AP Photo/Nasser Nasser, File)

FILE - In this Friday, Feb. 22, 2013 file photo, Egyptian protesters, unseen, block a road preventing loaded trucks from leaving the port with a banner in Arabic that reads, "fair retribution," during a general strike, in Port Said, Egypt. For nearly two weeks, protesters and strikers have shut down much of Egypt?s Mediterranean city of Port Said, filling the streets with one angry rally after another. Opponents of Egypt?s Islamist president are looking to Port Said as a model for stepping up their campaign against him with a possible wave of civil disobedience in other parts of the country. (AP Photo/Nasser Nasser, File)

(AP) ? For nearly two weeks, protesters and strikers have shut down much of Egypt's Mediterranean city of Port Said, filling up the streets with one angry rally after another. At the unrest's height, they succeeded in closing off a multimillion-dollar port for days, forcing some ships to reroute, and in sealing off a major factory complex.

The strikes in this city of 750,000 at the tip of the strategic Suez Canal rattled Islamist President Mohammed Morsi and his government in a way that previous protests haven't, because they directly hit the economy. Opponents of Morsi, some of whom now openly call for his ouster, are looking to Port Said as a model for stepping up their campaign against him with a possible wave of civil disobedience in other parts of the country.

The plans for wider strikes are being pushed mainly by younger revolutionary groups. But in the process they appear to be pulling in opposition politicians, who had previously been reluctant ? and at times unable? to step up street action against Morsi and the ruling Muslim Brotherhood. The opposition is searching for a way to organize public anger against Morsi at a time when it has called for a boycott of parliamentary elections due to begin in April. The main opposition political coalition, the National Salvation Front, is considering some forms of civil disobedience, along with street campaigns, to back up its election boycott call.

Ziad el-Oleimi, a former lawmaker and prominent revolutionary since the 2011 uprising that toppled autocrat Hosni Mubarak, said Port Said's strikes ? triggered a discussion among Morsi opponents on how to develop mechanisms of revolt. One idea is to encourage the public to stop paying electricity and other bills to the government as a sign of protest.

"We are facing a regime that is now immune to popular rallies. The revolution must develop its tactics. Strike and civil disobedience are among the measures that can harm the abilities of authority to rule," he said. "What is happening in Port Said moves us to a new area, and gives people an example of something they have not tried before."

Already, calls for strikes in several cities in the Nile Delta have led to clashes. In the Nile Delta city of Mansoura this week, protesters convinced staff at the main government office to go on strike, but pro-Brotherhood residents assaulted their sit-in, beating some protesters. Police then moved in, and clashes have continued between protesters and security forces for the past four days.

A civil disobedience campaign also has its limitations, illustrated by Port Said itself.

Morsi has portrayed those who forced the factory and port closures as "thugs" and "outlaws," seeking to discredit the protests. Shutting down factories also risks alienating workers reliant on their salaries. In some cases, protesters pressured workers into joining work stoppages.

And though Port Said strikes have been effective, they may be hard to reproduce elsewhere.

Most notably, Port Said is pervaded by an exceptional anger galvanizing the populace in a way not seen in other parts of the country.

Outrage has been boiling in the city since protests in late January against a court ruling that residents saw as unjust. During the protests, more than 40 residents were killed, mainly by security forces. Morsi praised the police, referred to the protesters as "thugs" and declared a state of emergency and curfew in Port Said's province and two neighboring provinces. While police withdrew from the city, the military moved in to protect key installations and buildings. The military did not crack down on the strikes.

The January protests were sparked when a court sentenced to death 21 people ? mostly Port Said residents ? for involvement in a deadly soccer riot in the city a year earlier. Most of the 74 people killed in the soccer riot were visiting fans of Cairo's Al-Ahly team. Many residents accuse authorities of bending to pressure from the Ultras, a powerful organization of Al-Ahly fans who have staged protests in Cairo and repeatedly battled security forces the past two years.

Residents' sense of being persecuted ? by the verdicts, the protester killings and Morsi's stances ? were key to bringing public support to the strikes, first launched by students 13 days ago.

"The verdict was politicized, and we were angered by it. So they end up killing over 40 people," said protester Ahmed Hafez. "The Ultras in Cairo pressured them, and they chose to lean on this small province."

Hafez was among protesters who for five days last week blocked access to the key East Port terminal, on an offshoot of the Canal, forcing many ships looking to load or unload cargo to go elsewhere.

Also last week, protesters forced the shutdown for at least two days of a major factory complex in the city. The port protest was lifted, in part because protesters worried about being labeled "thugs" and in part because military officials negotiated with families of slain protesters. The factory shutdown was also largely ended after negotiations with the complex's owners.

But other stoppages continue. Most shops and businesses in the city are shut, opening a few hours a day, if at all. Teachers have been on strike, shutting down schools. Workers in four banks agreed to join the strike by the end of this week. Brotherhood members and supporters are nowhere in sight in the city, while protesters excoriate Morsi with ridicule and scathing posters.

"This was civil disobedience that is turning into a revolt," said Mohammed Nabil, a 29-year old accountant. "It is because people are not only indignant but they are also starting to understand and explain to one another. The anger is against the regime and its security agencies."

Students, teachers and soccer fans make up the bulk of strikers. They also convinced many merchants and workers at the facilities where they protested to join in. In some cases, however, they have pressured employees to participate. Last week, protesters outside the court chanted for employees to strike and accused the chief judge ? whom they accused of being a Brotherhood supporter ? of preventing them from doing so.

"Court staff, yo! We heard your boss won't let you go down," the crowd chanted. "We tell him, five more minutes and don't ask us what will happen. The women will come up to you to bring them down. So they don't call us thugs."

Morsi has responded with a mix of carrots and sticks. He promised an investigation into some of the January deaths and said he would review the status of the city as a Free Trade Zone, which Mubarak clamped down on. At the same time, Morsi denounced the strikers in a speech last week as "outlaws" and urged residents not to cooperate with them.

Mohammed el-Zanaty, a merchant who supports the strikes even though he has had no work since the January violence, said he had no faith in Morsi's promises of an investigation. He demands an apology from Morsi and official recognition that those killed in January were "martyrs" not "thugs."

"If he can't try the security officials, there will be no justice in Egypt," he said outside the courthouse.

Siham Saleh, a 36-year-old teacher also on strike, said the city will not let parliamentary elections take place.

"We have no faith in an unjust ruler," she said. "An unjust ruler must go. I am looking for a just one."

Mohammed Youssry, a 25-year old software engineer and activist in Port Said, said civil disobedience organizers in tapping into the city's sense of injustice and convincing many of the benefits of striking.

But he acknowledged that some workers and employees were forced to participate. "The pressure seems to be working but sometimes at a cost," he said, referring to accusations of thuggery.

"One thing that worked for sure is that the media blackout against Port Said has been lifted. People are paying attention."

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/3d281c11a96b4ad082fe88aa0db04305/Article_2013-02-28-ML-Egypt-Port-Said-Strikes/id-0035e0b017094c60b8748a57be296b96

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I.B.M. Exploring New Feats for Watson

[unable to retrieve full-text content]I.B.M. is trying to expand its artificial intelligence technology by training the computer Watson in projects that involve developing drugs and creating food recipes.

Source: http://www.nytimes.com/2013/02/28/technology/ibm-exploring-new-feats-for-watson.html?partner=rss&emc=rss

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Anti-gun Democrat shoo-in to replace Jackson Jr.

Robin Kelly celebrates her special primary election win for Illinois' 2nd Congressional District, once held by Jesse Jackson Jr., Tuesday, Feb. 26, 2013, in Matteson, Ill. After a primary campaign dominated by gun control and economic woes, voters chose Kelly over Debbie Halvorson and Anthony Beale, making her the likely replacement for Jesse Jackson Jr., three months after his legal troubles and battle with depression forced the son of the civil rights leader to resign from Congress. (AP Photo/Charles Rex Arbogast)

Robin Kelly celebrates her special primary election win for Illinois' 2nd Congressional District, once held by Jesse Jackson Jr., Tuesday, Feb. 26, 2013, in Matteson, Ill. After a primary campaign dominated by gun control and economic woes, voters chose Kelly over Debbie Halvorson and Anthony Beale, making her the likely replacement for Jesse Jackson Jr., three months after his legal troubles and battle with depression forced the son of the civil rights leader to resign from Congress. (AP Photo/Charles Rex Arbogast)

Robin Kelly celebrates her special primary election win for Illinois' 2nd Congressional District, once held by Jesse Jackson Jr., Tuesday, Feb. 26, 2013, in Matteson, Ill. After a primary campaign dominated by gun control and economic woes, voters chose Kelly over Debbie Halvorson and Anthony Beale, making her the likely replacement for Jesse Jackson Jr., three months after his legal troubles and battle with depression forced the son of the civil rights leader to resign from Congress. (AP Photo/Charles Rex Arbogast)

Chicago Alderman Anthony Beale, a Democrat, speaks with election judge Nancy Karen as he casts his vote in Chicago, Tuesday, Feb. 26, 2013, in the special primary election to replace former U.S. Rep. Jesse Jackson in Illinois' 2nd Congressional District. Beale is one of three front-runners in the primary. The others include former state Rep. Robin Kelly and former U.S. Rep. Debbie Halvorson. They were among 14 Democrats and four Republicans in the special primary, but the Democratic winner is expected to sail through the April 9 general election because of the heavily Democratic region. (AP Photo/M. Spencer Green)

Former Democratic U.S. Rep. Debbie Halvorson casts her vote in Steger, Ill., Tuesday, Feb. 26, 2013, in the special primary election to replace former U.S. Rep. Jesse Jackson in Illinois' 2nd Congressional District. Halvorson is one of the front-runners in the primary.? The others include former state Rep. Robin Kelly and Chicago Alderman Anthony Beale. They were among 14 Democrats and four Republicans in the special primary, but the Democratic winner is expected to sail through the April 9 general election because of the heavily Democratic region. (AP Photo/M. Spencer Green)

Former Illinois state Rep. Robin Kelly, a Democrat, finds a supporter in Yolanda Stratton as she campaigns at an IHOP in Matteson, Ill., on Tuesday, Feb. 26, 2013, on the final day of the special primary election to replace disgraced former U.S. Rep. Jesse Jackson in Illinois' 2nd Congressional District. Kelly is one of the three front-runners in the primary. (AP Photo/M. Spencer Green)

(AP) ? The newly elected Democratic nominee to replace disgraced former U.S. Rep. Jesse Jackson Jr. vowed to become a leader in the fight for federal gun control and directly challenged the National Rifle Association in her victory speech.

But it remains to be seen if Robin Kelly's primary win Tuesday night in the Chicago-area district, aided by a $2 million ad campaign funded by New York City Mayor Michael Bloomberg's super PAC, would fuel the national debate.

Kelly, a former state representative, emerged early as a voice for gun control in the truncated primary season after Jackson resigned in November. She gained huge momentum as Bloomberg's super PAC poured money into anti-gun television ads in her favor that blasted one of her Democratic opponents, former U.S. Rep. Debbie Halvorson, for receiving a previous high rating from the NRA. Kelly supports an assault weapons ban, while Halvorson does not.

"We were on the right side of the issue and our message resonated," Kelly told The Associated Press shortly after her win.

Kelly promised in her victory speech later Tuesday night to fight "until gun violence is no longer a nightly feature on the evening news" and directly addressed the NRA, saying "their days of holding our country hostage are coming to an end."

Bloomberg called Kelly's win an important victory for "common sense leadership" on gun violence, saying in a statement that voters nationwide are demanding change from their leaders.

But other Democratic front-runners accused Bloomberg of buying a race and interfering in the heavily urban district that also includes some Chicago suburbs and rural areas.

"It shows, unfortunately, you can't go up against that big money. ...That's the problem with super PACs," Halvorson, who unsuccessfully challenged Jackson in a primary last year, told the AP. "There is nothing I could have done differently."

Kelly's win all but assures she will sail through the April 9 general election and head to Washington, because the Chicago-area district is overwhelmingly Democratic. The Republican contest, featuring four lesser-known candidates, was too close to call as of Tuesday night, though no Republican has won the district in 50 years.

The race was the district's first wide-open primary since 1995, when Jackson was first elected to Congress in a special election. He resigned in November after a months-long medical leave for treatment of bipolar disorder and other issues, then pleaded guilty this month to misspending $750,000 in campaign money on lavish personal items.

Even with his legal saga playing out in the courts, talk of guns dominated the primary race, which featured 14 Democrats. The election came after Chicago saw its deadliest January in more than a decade, including the fatal shooting of a high-profile honors student just days after she performed at events in Washington to celebrate President Barack Obama's second inauguration.

Political experts and fellow candidates said the super PAC money made all the difference, particularly in an election with a short primary and low voter turnout.

"The money bought Kelly a tremendous among of attention," said Laura Washington, a political analyst in Chicago. "She tapped into a real hard nerve out there in the community. People are really concerned about gun control and violence. She was smart to focus like a laser on that issue."

Bloomberg's entrance into the race became controversial, at least with the candidates and some voters.

The Democrat-turned-Republican-turned-independent has long taken a vocal stance against guns. He launched his super PAC weeks before the November election and spent more than $12 million to back seven candidates nationwide, including for newly elected Rep. Gloria Negrete McLeod, a California Democrat who ousted an incumbent during a race where guns were an issue.

On Tuesday, Kelly told supporters that she would work with Obama and Chicago Mayor Rahm Emanuel to get gun control legislation through Congress.

However, gun rights advocates dismissed the notion that Kelly's election and Bloomberg's attention would fuel the debate on gun control.

"This is an aberration," said Illinois State Rifle Association spokesman Richard Pearson. "This shows what you can do with $2 million in an offseason race. He bought the election is the way."

Another Democratic front-runner, Chicago Alderman Anthony Beale, also took issue with the ads, saying people were "extremely upset" that someone from New York was trying to tell people in Illinois how to vote.

"That's what money gets you," he told the AP after conceding late Tuesday. "We earned every vote."

Roughly 14 percent of registered voters came to the polls, an estimate Chicago officials called the lowest turnout in decades. Adding to the problem was a blast of wintry weather Tuesday that snarled traffic, cancelled hundreds of flights and could have kept some voters home.

But those who did make it out indicated that guns, ethics and economic woes were on their minds.

Mary Jo Higgins of Steger, a south Chicago suburb, said she voted for Halvorson because the former congresswoman was "the only Democrat who believes in the Second Amendment."

But Country Club Hills minister Rosemary Gage said she voted for Kelly because she was "standing with (Obama) and trying to get rid of guns."

"It's really bad in Chicago and across the country," Gage said. "Too many children have died."

___

Associated Press writer Sara Burnett contributed to this report.

___

Sophia Tareen can be reached at http://twitter.com/sophiatareen

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/89ae8247abe8493fae24405546e9a1aa/Article_2013-02-27-House-Jackson%20Seat/id-f71ed712bbc04b6487565158f9756e14

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Wednesday, February 27, 2013

Watch a Solar Plane Disappear in One Minute

Now that the Solar Impulse has set endurance records for solar-powered flight, including staying aloft for more than 24 consecutive hours, the plane is coming to America. As we reported in December, the Swiss project's backers are bringing Solar Impulse to California this year. Beginning in the spring, they will fly across America in multiple legs, concluding the trek in New York. But first they have to get their plane to the States.

Solar Impulse just released this time-lapse video of the aircraft's deconstruction. It took engineers a full week to disassemble the sun-powered plane and box it up for its transatlantic journey from Switzerland to the Golden State. In the time-lapse video above, it all happens in just 59 seconds.

While it'll be exciting to see the experimental aircraft on its American tour, the main attraction comes in 2015, when, pilots Andr? Borschberg and Bertrand Piccard say, they will fly a larger version of Solar Impulse around the globe.

Source: http://www.popularmechanics.com/how-to/blog/watch-a-solar-plane-disappear-in-one-minute-15146771?src=rss

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Egypt confiscates missiles smuggled from Libya

CAIRO (AP) ? An Egyptian security official says authorities have confiscated two pick-up trucks carrying 60 anti-tank missiles smuggled across the border from Libya.

The official says two truck drivers were arrested and the weapons seized just south of Cairo on Wednesday morning.

The two were heading from Marsa Matrouh, 430 kilometers (270 miles) northwest of the capital on the Mediterranean Coast, to the largely lawless Sinai Peninsula where weapons are regularly smuggled to Palestinian militant groups in the Gaza Strip through underground tunnels.

The official spoke on condition of anonymity because he was not authorized to speak to the press.

Lawlessness has been rife in Sinai since the ouster of longtime ruler Hosni Mubarak in February 2011. Weapons have flowed from Libya into the peninsula, where Islamist militants have grown in strength.

Source: http://news.yahoo.com/egypt-confiscates-missiles-smuggled-libya-125911272.html

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Tuesday, February 26, 2013

94% Zero Dark Thirty

All Critics (234) | Top Critics (44) | Fresh (219) | Rotten (15)

What's striking is the absence of triumphalism -- Bigelow doesn't shy away from showing the victims shot down in cold blood in the compound -- and we come away with the overwhelming sense that this has been a grim, dark episode in our history.

Chastain makes Maya as vivid as a bloodshot eye. Her porcelain skin, delicate features and feminine attire belie the steel within.

No doubt Zero Dark Thirty serves a function by airing America's dirty laundry about detainee and torture programs, but in its wake, there's a crying need for a compassionate Coming Home to counter its brutal Deer Hunter.

While "Zero Dark Thirty" may offer political and moral arguing points aplenty, as well as vicarious thrills,as a film it's simply too much of a passable thing.

From the very first scenes of Zero Dark Thirty, director Kathryn Bigelow demonstrates why she is such a formidable filmmaker, as adept with human emotion as with visceral, pulse-quickening action.

A timely and important reminder of the agonizing human price of zealotry.

An exhilarating and compelling historical document worthy of praise.

Bigelow's latest proves a rewarding piece of filmmaking, one that, in its best moments at least, is as gripping and as troubling as anything the director's ever made.

Bigelow and screenwriter Mark Boal shape history -- those breaks, big and small, that led to the killing of Osama bin Laden -- into one of the finest fact-based thrillers since "All the President's Men."

Purely as cinematic exercise, Zero Dark Thirty is an exhilarating piece of work. But, beyond its for-the-times subject matter, the work does not linger whatsoever.

Zero Dark Thirty is interesting as opposed to enjoyable, intriguing as opposed to entertaining, and certainly less memorable than The Hurt Locker.

It's quite remarkable how Bigelow and Boal managed to take 12 years of information (including a conclusion that everyone knows) and packaged it into a coherent, intimate and intense movie.

We know the ending, yet remain mesmerized by familiar details, filmed with a harrowing sense of urgency. It's as close to being in the White House situation room that night, watching a closed-circuit broadcast, as anyone could expect.

The second half of the film IS the film.

Whereas Locker was less about war than what it is to have a death wish, ZDT is less about the suspenseful true-life search for Osama bin Laden than the red tape one woman must wade through to prove that a mean old bastard is living in suburban Pakistan.

Bigelow's great achievement is stripping down the action from the exaggerated theatrics in movies and television shows so the missions feel no less exciting and immediate.

One of the finest movies of the year is a thriller about the tracking and, finally, slaying of Osama bin Laden.

There is no Team America-style, flag-waving bravado behind this story - it is quite the opposite.

Bigelow has created the best film of 2012.

"Zero Dark Thirty" is less a celebration how terrorist mastermind Osama bin Laden was found and killed than an engrossing examination of why it took a decade to deal with him.

Following on from the great acclaim of The Hurt Locker, Bigalow's shaky cam and tough talking characters once again take us to the dark side of modern warfare.

In the absence of cinematic grandeur and didacticism, we're left as empty and as lost as Chastain's agent as she boards a symbolically empty plane for an uncertain future. Just what are we to think of the so-called War on Terror?

The viewer needs to stay sharp to stay on top of the details of the labyrinthine search, but Bigelow tackles the complex story with the same muscular urgency and incisive intelligence that won her an Oscar for The Hurt Locker.

Source: http://www.rottentomatoes.com/m/zero_dark_thirty/

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South Dakota legislator calls MMA ?Child porn of sports,? while governor says it?s too violent

A bill to create an athletic commission in South Dakota is going nowhere fast, largely thanks to the ignorance of Gov. Dennis Daugaard and state house Rep. Steve Hickey.

Their primary objective is to ban sanctioned mixed martial arts in the state. In a blog post, Hickey writes that, "MMA Cage Fighting is the child porn of sports."

The lack of knowledge and the lack of research both Daugaard and Hickey showed about MMA has to be frightening for persons who live in South Dakota. If they can't be bothered to do the minimal research required to learn that MMA is far safer than other "mainstream" sports, including football, it's scary to think about the laws they'll pass in the state regarding education, health care and budgets.

The UFC is the largest MMA promoter in the world. No fighter has ever suffered traumatic brain injury, let alone died, in the UFC's 20-year history. A 2006 study done by researchers at Johns Hopkins University and which appeared in the Journal of Sports Science and Medicine found MMA has far less traumatic brain injury than other sports.

Mixed Martial Arts competitions have changed dramatically since the first Ultimate Fighting Championship in 1993. The overall injury rate in MMA competitions is now similar to other combat sports, including boxing. Knockout rates are lower in MMA competitions than in boxing. This suggests a reduced risk of TBI [traumatic brain injury] in MMA competitions when compared to other events involving striking.

MMA events must continue to be properly supervised by trained referees and ringside physicians, and the rules implemented by state sanctioning?including weight classes, limited rounds per match, proper safety gear, and banning of the most devastating attacks? must be strictly enforced. Further research is necessary to continue to improve safety in this developing new sport.

A 2008 study released by the British Journal of Sports Medicine reached the same conclusions. After a five-year study, its authors wrote:

Injury rates in regulated professional MMA competition are similar to other combat sports; the overall risk of critical sports-related injury appears low. Additional study is warranted to achieve a better understanding of injury trends and ways to further lower injury risk in MMA.

The simple fact is that a random NFL player is at far greater risk of a serious brain injury than is a random MMA fighter. Sadly, neither Gov. Daugaard nor Rep. Hickey bothered to do much investigation or educate themselves before speaking out.

South Dakota state house Rep. Mark Johnston introduced a bill to create an athletic commission in the state for the express purpose of making the sport safer. According to the Argus Leader, Johnston said his goal is to prevent unregulated events where tragedies could possibly occur.

A state athletic commission's job is, at the core, to protect the fighters. It makes sure the proposed matches are fair and that promoters have doctors and an ambulance at all events. The commissions also require qualified referees, who stop fights when one fighter is in danger. It also requires fighters to undergo extensive medical examinations before fighting to make certain they are fit to compete. States such as Nevada, California and New York, with strong commissions, have discovered injuries fighters didn't know they had and prevented them from competing. That wouldn't be the case in South Dakota, with no commission to require those tests.

A fear of many states with strong commissions is that promoters will travel across state lines to put on shows in states such as South Dakota, where there is no regulation and where, as a result, costs are less. But the result is that it is far less safe for the competitors.

Sadly, neither Daugaard nor Hickey recognize that. Hickey told the Argus Leader he was angered by the thought of his state sanctioning MMA.

I'm offended that the state would legitimize cage-fighting and the bloody violence that those kinds of spectacles create. I think it's interesting that we declare that it is a crime for one human being to strike another, and yet the state now proceeds to legitimize, and label a sport, cage-fighting.

With all due respect, Gov. Daugaard, a few points:

? It is a crime for one human to strike another outside of the bounds of athletic competition. But it is no crime to strike another in the context of sport and when doctors and referees are available to protect the athletes and where the athletes have signed a contract to compete against each other.

? MMA fights sometimes get bloody. But no fighter to my knowledge has ever suffered anything worse than scarring as a result of being cut. It is important to note that a lot of the cuts are on the forehead above the eyes, where they mix with sweat and make them seem far worse than they are.

? States that have athletic commissions ban fighters who have sustained head injuries from competing again for several months. And before even being allowed to practice in a gym, the fighter needs to be cleared by a doctor.

? MMA is a combination of sports, many of which are already legal in South Dakota, including boxing, wrestling, karate, jiu-jitsu and judo.

Futures rise in rebound after steep losses on Italy vote

NEW YORK (Reuters) - U.S. stock index futures rose on Tuesday, indicating equities would partially rebound from a steep drop over Italian election results as investors saw opportunities to buy beaten-down shares.

Market participants speculated a coalition government would eventually emerge in Italy and ease worries about a new euro zone debt crisis.

Groups in Italy opposed to economic reforms posted a strong showing, resulting in a political deadlock with a comedian's protest party leading the poll and no group securing a clear majority in parliament.

"We've gone to an environment of political stability to instability, and until we get some type of clarity over who is in charge, which could take days, the market will have renewed concerns," said Art Hogan, managing director of Lazard Capital Markets in New York.

"Investors are taking advantage of the drop, and once some kind of coalition government is formed most of our concerns will be put to rest," Hogan said.

S&P 500 futures rose 3.9 points and were above fair value, a formula that evaluates pricing by taking into account interest rates, dividends and time to expiration on the contract. Dow Jones industrial average futures added 38 points and Nasdaq 100 futures rose 5.75 points.

Major indexes fell more than 1 percent on Monday, with the S&P 500 having its biggest daily drop since November as investors fretted that if Italy does not undertake reforms, that could once again destabilize the euro zone. European equities <.fteu3>, which closed before the results on Monday, fell 1.1 percent.

Investors will pay close attention to the first of two days of congressional testimony by Federal Reserve Chairman Ben Bernanke for insight into the central bank's view of the economy, as well as the outlook for its bond buying program. Last week, equities fell on concerns the program might end sooner than had been anticipated.

Bernanke appears before the Senate Banking Committee at 10 a.m. (1500 GMT).

Economic data will include the CaseShiller report on December home prices at 9 a.m. (1400 GMT). Analysts expect a 0.5 percent rise. January consumer confidence is scheduled for 10 a.m. and is seen rising to 61.0 from 58.6 in the previous month. New-home sales for January also are due at 10 a.m.

The rise in U.S. futures suggests that a recent trend of investors buying on dips will continue. Last week, concerns the Fed might roll back its stimulus policy earlier than expected prompted a sharp two-day decline, though equities recovered most of the lost ground by the end of the week.

Financial shares may be among the most volatile, as the group is closely tied to the pace of global economic growth. Morgan Stanley was one of the top percentage losers on the S&P on Monday, dropping more than 6 percent on concerns about the company's exposure to European debt. It rose 0.8 percent to $22.20 in premarket trading on Tuesday.

Dow component Home Depot Inc , the world's largest home improvement retailer, reported adjusted earnings and sales that beat expectations. Its stock rose 1.5 percent to $64.90 in premarket trading.

For the benchmark S&P 500 index, 1,500 will be watched as a key level after the index closed below it on Monday for the first time since February 4, with selling accelerating after falling below it. An inability to break back above it could portend further losses.

The S&P remains 4.3 percent higher on the year. With 83 percent of the S&P 500 having reported so far, 69 percent beat profit expectations, compared with a 62 percent average since 1994 and 65 percent over the past four quarters, according to Thomson Reuters data. Fourth-quarter S&P earnings are seen having risen 6 percent, above a 1.9 percent forecast at the start of the earnings season.

(Editing by Chizu Nomiyama and Kenneth Barry)

Source: http://news.yahoo.com/stock-index-futures-point-small-rebound-093850435--finance.html

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Backed By $1M From Peter Thiel & More, Thinkful Is On A Mission To Reinvent Career Training

Screen shot 2013-02-26 at 6.23.35 AMAsk any startup founder, and they'll tell you that engineering talent is in high demand, but the problem is that good talent is hard to come by. What's more, we have a computer science education deficit in the U.S. Today, computer science is absent in 95 percent of high schools. Luckily, a gaggle of startups and websites, like Treehouse, Lynda.com, Code School, Khan Academy, LearnStreet and more will now teach you the basics of some of the world's most pervasive programming languages. While these startups are collectively doing wonders for the democratization of computer science education, the founders behind Thinkful believe that the current options lack the kind of support that students need to learn effectively. Launched last year by Darrell Silver and Dan Friedman (who was one of the first to receive a 20 Under 20 Thiel Fellowship), Thinkful aims to help anyone and everyone learn skills that let them advance in their career or start a new one, while giving them the support (and teacher interaction) they need to get there through one-on-one training.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/XNO49516tcg/

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Sunday, February 24, 2013

First Presbyterian Church of Freehold celebrates 175th anniversary

Sorry, Readability was unable to parse this page for content.

Source: http://www.app.com/article/20130223/NJNEWS/302230035/1004/NEWS01&source=rss

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EPA findings at toxic California Superfund site concern area residents

By Stephen Stock and David Paredes, NBCBayArea.com

Some residents who live around Moffett Federal Airfield near Mountain View, Calif., say they are scared. Others say they?re not worried at all.

Depending on whom you talk to, the Environmental Protection Agency?s findings of higher than expected levels of TCE in the air and in the groundwater near the Mountain View property is either a cause for big concern or no big deal.

But one thing is certain. Everyone is talking about the new test results from the EPA showing a presence of toxic chemicals in the air and in the groundwater in and around the Middlefield, Ellis, Whisman (or M-E-W) Superfund site.

According to the EPA, the underground Superfund site include a wide variety of toxic chemicals including PCE and vinyl chloride, chemicals left over from the budding semi-conductor industry that got its start in the buildings along Middlefield and Whisman Roads and Ellis Street.

The chemical of most concern and most quantity in the toxic underground plume is a chemical called trichloroethylene, known as TCE.?It's a cleaning solvent once commonly used by the military and the budding semi-conducting industry 30 years ago.

The EPA says that TCE is a toxic solvent that causes cancer in people and heart deformities in unborn babies. According to EPA experts the toxic plume has been lurking underground for decades ever since nascent semi-conductor companies apparently dumped or allowed TCE and other chemicals to leak into the ground.

According to EPA officials the United States military also used TCE to clean airplanes and vehicles during that same time period.

The plume extends from under the runway at Moffett Field a mile and a half south and west under Highway 101 and past Middlefield Road. To the north it goes to Whisman Road and south to just past Ellis Street.

The plume of mostly TCE is believed by EPA investigators to be about a half-mile wide at its widest point.

After NBC Bay Area?s Investigative Unit began asking questions in April 2012 about possible health effects of the TCE plumes, the Cancer Prevention Institute of California (CPIC) opened its own probe.

After exhaustive research and analysis of three decades worth of health data, California?s state cancer registry announced that it found a higher than expected number of people living in neighborhood surrounding the M-E-W Superfund site who had contracted a group of cancers the registry?s scientists call non-Hodgkin lymphoma.

The higher than expected incidence of these cancers occurred during the years 1996 to 2005.

NBC Bay Area

Now the EPA admits that until recently it had somehow missed some ?hot spots? of higher than acceptable levels of TCE in groundwater and in the air in several homes and more than 20 commercial buildings in the area. Two of the hotspots were found by EPA investigators along Evandale Avenue outside the original plume area.

That concerns some residents who live on that road. Residents like Theresa Larrieu, who has lived in a home along Evandale with her family for a quarter century. Larrieu said that the family always knew the M-E-W Superfund was nearby but figured it didn?t directly affect them since it wasn?t right next door. The Superfund site was far enough away, Larrieu thought, to be present but not an impact on her family?s health or life. Now, with these new EPA test results, the TCE plumes appears to actually be right next door and it may even be under Larrieu?s home. The EPA has conducted air, water and soil tests in and around the home but the results have not come back as of this writing.

Larrieu says she's worried and is holding her breath waiting on the results of those air and water sample tests the EPA took from her home. ?Scared. Nervous. Worried. Very worried,? Larrieu said when asked to describe her emotions. ?(There?s) way more suspense than I need in my life.?

?Your first thought is your health, is this affecting us is this affecting other neighbors that I know had health issues,? said Larrieu.

The EPA shares Larrieu?s concerns and M-E-W Superfund Site manager Alana Lee emphasizes they are working hard to address and clean up the mess. ?We cleaned up over 5 1/4 billion gallons of contaminated water and over 110,000 pounds of toxic contaminant,? said Lee.

But Lee also said that the EPA also missed these hot spots of TCE both in groundwater and in the air inside some buildings along Evandale Avenue including two homes outside the original plume area.

?The concentration (found there) is very high,? said Lee, ?A very high concentration.?

How high?

According to documents from test results, the highest TCE levels that the EPA measured in ground water in the area reached 130,000 parts per billion. The EPA considers anything over 5 parts per billion unsafe.

In the commercial buildings nearby, including two now occupied by Google, EPA tests found TCE in the air at levels 26 times higher than the level considered by the EPA to be acceptable and safe.

?Once we found these concentrations, which were a surprise, we took immediate action,? said Lee.

EPA

Bruce Panchal?s home is one of the two houses located on Evandale where the EPA found high levels of TCE. The companies responsible for the toxic chemical cleanup installed a series of four pipes in and around his home to ventilate the toxic TCE fumes leeching from the ground away from the house?s interior to the outside.

Even so Panchal said he?s not worried. ?They found a high concentration and with the system it pumps out all the fumes so it safe,? said Panchal.

Panchal and his family have lived in his home along Evandale for 45 years. He said he worked for the budding semi-conductor businesses that got their start in his neighborhood. He even said he handled the chemicals now in question and dumped them in the ground back then.

Despite the new contraptions now pumping air away from the inside of his house, he says he isn?t worried about his or his family?s health. ?I?m living proof that they have an issue with the fumes but it is not death defying or a detriment to your health,? said Panchal.

EPA officials said they also found high levels of TCE in more than twenty different commercial buildings between Whisman Road and Ellis Street. Included among those buildings are two new office complexes for Google employees where, the EPA says, renovations and construction allowed higher than expected levels of TCE to leech from the ground through the buildings? concrete slabs and into the air inside.

It is in some of these buildings where EPA investigators found levels of TCE vapors in the interior air that were as much as 26 times higher than acceptable safe levels with air conditioning systems off.

The EPA says it has systems in place in and around those buildings to keep vapors outside.

Google tells us they take this matter seriously and they?ve already taken measures to ensure that the buildings and the work area is safe.

Theresa Larrieu worries that it may be too late to keep her family from feeling the health effects of this toxic plume. She wonders how long they may have been exposed to these vapors and chemicals that went undetected until recently.

?It is scary,? said Larrieu. ?I?m very scared. I have children. I have grandchildren.?

Larrieu also remains concerned that not even the EPA can say how long the fumes have been leeching into the neighborhood or how long she and her family have unknowingly been exposed.

When we asked the EPA if they knew exactly how long have these newly discovered TCE hot spots had been there the EPA?s Superfund Site manager Alana Lee said, ?We don?t know.?

When we asked whether the toxic chemicals migrate underground or traveled down Evandale Avenue or whether those chemicals had been lurking there underground along with the rest of the toxic plume for decades, Lee had the same answer. ?We don?t know.?

The EPA said it will take decades more to clean up this toxic mess.

Source: http://usnews.nbcnews.com/_news/2013/02/23/17068747-epa-findings-at-toxic-california-superfund-site-concern-area-residents?lite

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Saturday, February 23, 2013

Ex-mayor Murphy says his bodyguard didn't use cards

The U.S. military on Friday grounded the F-35 fighter jet due to a crack in an engine component that was discovered during a routine inspection in California.

The Pentagon said in a statement that it was too early to assess the impact on the fleet of ...

Read More ?

Source: http://www.wtae.com/news/local/allegheny/Former-Pittsburgh-Mayor-Tom-Murphy-says-bodyguard-didn-t-use-debit-cards/-/10927008/19046528/-/2mdjyw/-/index.html?absolute=true

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LaHood Warns Budget Cuts Would Be 'Very Painful for the Flying Public'

Transportation Secretary Ray LaHood warned today that looming across-the-board spending cuts would cause flight delays at major airports, force the Federal Aviation Administration to furlough workers and have a "very serious impact" on the nation's transportation services.

Painting a bleak picture, LaHood told reporters "it's going to be very painful for the flying public" if the cuts kick in at the end of the month.

Overall, the Department of Transportation would need to cut roughly $1 billion from its $74.2 billion budget, less than 2 percent. More than $600 million of the cuts would come from the FAA, which would be forced to furlough the majority of its nearly 47,000 employees.

As a result, travelers could expect delays of up to 90 minutes at major airports like New York, Chicago and San Francisco because there would be fewer controllers on staff and some flight towers at smaller airports could close temporarily.

"You've got a big budget. Can't you find some other way to cut that without telling air traffic controllers to stay home?" ABC News' Jonathan Karl asked.

"That's a lot of money, Jonathan," the secretary, a Republican, replied.

LaHood's surprise appearance at the daily briefing comes as the White House is trying to ramp up pressure on Republicans to reach a deal to avoid so-called sequestration.

"I would describe my presence here with one word: Republican. They're hoping that maybe I can influence some of the people in my own party," the former Illinois congressman admitted.

LaHood urged his former colleagues in the Republican Party to "step up" and compromise and recommended they see the movie "Lincoln" for inspiration. "What Lincoln did is he gathered people around him the way that I believe president Obama is doing, by calling Republicans, talking to them, trying to work with them. And when that happens, big things get solved," he said.

LaHood, 67, cautioned lawmakers to expect a flood of calls from their constituents if air-traffic delays occur. "Why does this have to happen?" he asked. "Nobody likes a delay. Nobody likes waiting in line. None of us do.

"If we can't get our hamburger within five minutes, if we can't get on the plane within 30, 40, 50 minutes after going through, you know what happens. They start calling their member of Congress."

Also Read

Source: http://news.yahoo.com/lahood-warns-budget-cuts-very-painful-flying-public-195529972--abc-news-politics.html

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Office 2007 & Windows 8

?Office 2007 & Windows 8

Office 2007, Windows 8 Will MS Office 2007 ultimate run under Windows 8?

Software/Hardware used:
Windows 8, MS Office 2007 ultimate

ASKED: February 22, 2013??6:01 AM

Source: http://itknowledgeexchange.techtarget.com/itanswers/office-2007-windows-8/

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The Sports Hub: Earl Austin Jr., Yadier Molina & Jim Thomas

St. Louis Cardinals Yadier Molina motions to his dugout after reaching second base on a ground rule double, scoring two runs in the fifth inning against the Pittsburgh Pirates at Busch Stadium in St. Louis on August 18, 2012.   UPI/Bill Greenblatt

St. Louis Cardinals Yadier Molina motions to his dugout after reaching second base on a ground rule double, scoring two runs in the fifth inning against the Pittsburgh Pirates at Busch Stadium in St. Louis on August 18, 2012. UPI/Bill Greenblatt

Mike Claiborne talked SLU basketball with radio color analyst Earl Austin Jr. from Indianapolis. They also discuss the success of basketball players from the St. Louis area.

The Sports Hub

Coming off a career season hitting at the plate, Yadier Molina joined the show to talk about what he?s seen after a week of Spring Training.

The Sports Hub

KMOX host Mark Reardon, also a film critic, joined Mike to preview the 2013 Academy Awards.

The Sports Hub

Also from Indianapolis, Jim Thomas checks in with news from the 2013 NFL Combine.

The Sports Hub

Source: http://stlouis.cbslocal.com/2013/02/21/the-sports-hub-earl-austin-jr-jim-thomas/

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Friday, February 22, 2013

Has evolution given humans unique brain structures?

Feb. 22, 2013 ? Humans have at least two functional networks in their cerebral cortex not found in rhesus monkeys. This means that new brain networks were likely added in the course of evolution from primate ancestor to human.

These findings, based on an analysis of functional brain scans, were published in a study by neurophysiologist Wim Vanduffel (KU Leuven and Harvard Medical School) in collaboration with a team of Italian and American researchers.

Our ancestors evolutionarily split from those of rhesus monkeys about 25 million years ago. Since then, brain areas have been added, have disappeared or have changed in function. This raises the question, 'Has evolution given humans unique brain structures?'. Scientists have entertained the idea before but conclusive evidence was lacking. By combining different research methods, we now have a first piece of evidence that could prove that humans have unique cortical brain networks.

Professor Vanduffel explains: "We did functional brain scans in humans and rhesus monkeys at rest and while watching a movie to compare both the place and the function of cortical brain networks. Even at rest, the brain is very active. Different brain areas that are active simultaneously during rest form so-called 'resting state' networks. For the most part, these resting state networks in humans and monkeys are surprisingly similar, but we found two networks unique to humans and one unique network in the monkey."

"When watching a movie, the cortex processes an enormous amount of visual and auditory information. The human-specific resting state networks react to this stimulation in a totally different way than any part of the monkey brain. This means that they also have a different function than any of the resting state networks found in the monkey. In other words, brain structures that are unique in humans are anatomically absent in the monkey and there no other brain structures in the monkey that have an analogous function. Our unique brain areas are primarily located high at the back and at the front of the cortex and are probably related to specific human cognitive abilities, such as human-specific intelligence."

The study used fMRI (functional Magnetic Resonance Imaging) scans to visualise brain activity. fMRI scans map functional activity in the brain by detecting changes in blood flow. The oxygen content and the amount of blood in a given brain area vary according to a particular task, thus allowing activity to be tracked.

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Story Source:

The above story is reprinted from materials provided by KU Leuven, via AlphaGalileo.

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


Journal Reference:

  1. Dante Mantini, Maurizio Corbetta, Gian Luca Romani, Guy A. Orban, Wim Vanduffel. Evolutionary-Novel Functional Networks in the Human Brain? The Journal of Neuroscience, 2013; DOI: 10.1523/%u200BJNEUROSCI.4392-12.2013

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

Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_environment/~3/xHGCPbZI-WU/130222120753.htm

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Nokia to fight rivals with cheaper models-sources

COPENHAGEN (Reuters) - Nokia is shifting the focus of its turnaround strategy to regaining domination of cheaper handsets after a stuttering campaign to catch up with Apple and Samsung in high-end smartphones.

Company sources said it would introduce cut-price basic phones to compete with the likes of Huawei and ZTE and a new, lower-price model of its Lumia smartphone on Monday at the Mobile World Congress convention in Barcelona.

Nokia, once the industry's undisputed leader, is struggling to close the yawning gap with Apple's iPhones and Samsung's Galaxy smartphones and is also losing share in the low-end market which still accounts for the bulk of its sales.

Sales of basic phones fell over 20 percent in 2012 to 9.4 billion euros.

While some media reports have said that Nokia will announce a tablet in Barcelona, the company is not yet ready to unveil one, one of the sources said.

DOUBLE STRATEGY

"What they have to do is increase share in the growing smartphone part and also defend market share in the other," said Swedbank analyst Hakan Wranne.

He said a lower-priced Lumia would help boost its mid-tier offering, an increasingly important market as more consumers in developing markets demand access to Facebook and other social media sites from their mobile phones.

"In order to not continue to lose share in the overall market Nokia has to put forward competitive low-end smartphones.

"What's happening now is that the U.S. and Europe, the big smartphone markets, are really approaching saturation where customers will be upgrading to another smartphone or just replacing one that's broken. That's not a growth market."

Lumia smartphones, which use Windows software, were widely seen as make-or-break models for Nokia due to their high margins.

The company has concentrated on developing the range in the past two years, launching a top-of-the-range 920 model last November. But it has been slow to take off, and investors have said Nokia's dwindling cash position means it may soon need to change course if sales do not pick up in the coming quarters.

Most Lumia phones cost over $200, and the 920 can retail at over $600 without a carrier contract in the United States and some European markets.

By contrast, the average selling price of Nokia's mobile phones was 31 euros in 2012, down from 35 euros a year earlier.

SMARTPHONE SQUEEZE

Nokia's market share in the smartphone business is still only around 5 percent. According to Gartner, Apple and Samsung held a 52 percent share in the smartphone market in the fourth quarter.

Nokia sold 4.4 million Lumia devices in the fourth quarter, and analysts say it must more double those sales and offer more mid-range models to convince investors its smartphone strategy is working and it can survive.

Nokia has already been expanding its line-up of Asha models, which offer some access to the Internet but with fewer features than high-end smartphones, to bolster its share in developing markets such as China and India.

Customers of such mid-tier phones often upgrade to more advanced phones, while sticking with the same brand or operating system, analysts said.

(Editing by David Cowell)

Source: http://news.yahoo.com/nokia-sell-cheaper-phones-counter-low-end-rivals-110732588--finance.html

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Robotic bat wing engineered: Researchers uncover flight secrets of real bats

Feb. 21, 2013 ? The strong, flapping flight of bats offers great possibilities for the design of small aircraft, among other applications. By building a robotic bat wing, Brown researchers have uncovered flight secrets of real bats: the function of ligaments, the elasticity of skin, the structural support of musculature, skeletal flexibility, upstroke, downstroke.

Researchers at Brown University have developed a robotic bat wing that is providing valuable new information about dynamics of flapping flight in real bats.

The robot, which mimics the wing shape and motion of the lesser dog-faced fruit bat, is designed to flap while attached to a force transducer in a wind tunnel. As the lifelike wing flaps, the force transducer records the aerodynamic forces generated by the moving wing. By measuring the power output of the three servo motors that control the robot's seven movable joints, researchers can evaluate the energy required to execute wing movements.

Testing showed the robot can match the basic flight parameters of bats, producing enough thrust to overcome drag and enough lift to carry the weight of the model species.

A paper describing the robot and presenting results from preliminary experiments is published in the journal Bioinspiration and Biomimetics. The work was done in labs of Brown professors Kenneth Breuer and Sharon Swartz, who are the senior authors on the paper. Breuer, an engineer, and Swartz, a biologist, have studied bat flight and anatomy for years.

The faux flapper generates data that could never be collected directly from live animals, said Joseph Bahlman, a graduate student at Brown who led the project. Bats can't fly when connected to instruments that record aerodynamic forces directly, so that isn't an option -- and bats don't take requests.

"We can't ask a bat to flap at a frequency of eight hertz then raise it to nine hertz so we can see what difference that makes," Bahlman said. "They don't really cooperate that way."

But the model does exactly what the researchers want it to do. They can control each of its movement capabilities -- kinematic parameters -- individually. That way they can adjust one parameter while keeping the rest constant to isolate the effects.

"We can answer questions like, 'Does increasing wing beat frequency improve lift and what's the energetic cost of doing that?'" Bahlman said. "We can directly measure the relationship between these kinematic parameters, aerodynamic forces, and energetics."

Detailed experimental results from the robot will be described in future research papers, but this first paper includes some preliminary results from a few case studies.

One experiment looked at the aerodynamic effects of wing folding. Bats and some birds fold their wings back during the upstroke. Previous research from Brown had found that folding helped the bats save energy, but how folding affected aerodynamic forces wasn't clear. Testing with the robot wing shows that folding is all about lift.

Studying an animal with unique abilities

Over the years, Kenneth Breuer, an engineer, and Sharon Swartz, a biologist, have developed a large archive of bat data, from wind tunnels to field studies and slow-motion video.In a flapping animal, positive lift is generated by the downstroke, but some of that lift is undone by the subsequent upstroke, which generates negative lift. By running trials with and without wing folding, the robot showed that folding the wing on the upstroke dramatically decreases that negative lift, increasing net lift by 50 percent.

Data like that will not only give new insights into the mechanics of bat flight, it could aid the design of small flapping aircraft. The research was funded by the U.S. Air Force Office of Scientific Research and the National Science Foundation..

Inspired by the real thing

Bat wings are complex things. They span most of the length of a bat's body, from shoulder to foot. They are supported and moved by two arm bones and five finger-like digits. Over those bones is a super-elastic skin that can stretch up to 400 percent without tearing. The eight-inch robot mimics that anatomy with plastic bones carefully fabricated on a 3-D printer to match proportions of a real bat. The skin is made of a silicone elastomer. The joints are actuated by servo motors that pull on tendon-like cables, which in turn pull on the joints.

The robot doesn't quite match the complexity of a real bat's wing, which has 25 joints and 34 degrees of freedom. An exact simulation isn't feasible given today's technology and wouldn't be desirable anyway, Bahlman said. Part of why the model is useful is that it distills bat flapping down to five fundamental parameters: flapping frequency, flapping amplitude, the angle of the flap relative to the ground, the amount of time used for the downstroke, and the extent to which the wings can fold back.

Experimental data aside, Bahlman said there were many lessons learned just in building the robot and getting it to work properly. "We learned a lot about how bats work from trying to duplicate them and having things go wrong," he said.

During testing, for example, the tongue and groove joint used for the robot's elbow broke repeatedly. The forces on the wing would spread open the groove, and eventually break it open. Bahlman eventually wrapped steel cable around the joint to keep it intact, similar to the way ligaments hold joints together in real animals.

The fact that the elbow was a characteristic weak point in the robot might help to explain the musculature of elbows in real bats. Bats have a large set of muscles at the elbow that are not positioned to flex the joint. In humans, these muscles are used in the motion that helps us turn our palms up or down. Bats can't make that motion, however, so the fact that these muscles are so large was something of a mystery. Bahlman's experience with the robot suggests these muscles may be adapted to resist bending in a direction that would break the joint open.

The wing membrane provided more lessons. It often tore at the leading edge, prompting Bahlman to reinforce that spot with elastic threads. The fix ended up looking a lot like the tendon and muscle that reinforce leading edges in bats, underscoring how important those structures are.

Now that the model is operational, Bahlman has lots of plans for it.

"The next step is to start playing with the materials," he said. "We'd like to try different wing materials, different amounts of flexibility on the bones, looking to see if there are beneficial tradeoffs in these material properties."

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Story Source:

The above story is reprinted from materials provided by Brown University.

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


Journal Reference:

  1. Joseph W Bahlman, Sharon M Swartz, Kenneth S Breuer. Design and characterization of a multi-articulated robotic bat wing. Bioinspiration & Biomimetics, 2013; 8 (1): 016009 DOI: 10.1088/1748-3182/8/1/016009

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/matter_energy/biochemistry/~3/mH5WJdkNVC4/130221143942.htm

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