Thursday, May 23, 2013

Holder: U.S. killed four Americans overseas in drone strikes since 2009

This photo, from Oct. 2008, shows Imam Anwar al-Awlaki in Yemen, who was killed in a U.S. drone strike. (Muhammad??Attorney General Eric Holder informed Congress on Wednesday that the U.S. has killed four Americans in drone strikes since 2009 ? radical cleric Anwar al-Awlaki and three others who were ?not specifically targeted.?

Holder?s disclosure, first reported by the New York Times, came a day before President Barack Obama was to defend his counter-terrorism strategy in an afternoon speech at National Defense University. Obama was slated to focus on drone strikes ? which have sparked anger across the Muslim world and increasingly tough questions in Congress ? and on his broken promise to close the Guantanamo Bay prison for suspected extremists.

Separately, the Wall Street Journal reported that Obama planned to lift a ban on sending prisoners from Guantanamo to Yemen. The administration prohibited transfers to Yemen out of concern that, once there, they might carry out attacks or radicalize other Yemenis.

The administration will also resume transferring detainees to their home countries that the Pentagon has cleared for release, the paper reported.

Eighty-six of the 166 Guantanamo detainees have been cleared. Of those, 56 are from Yemen. But the first transfers will likely be of prisoners not from Yemen, the Journal reported, citing US officials.

There is little appetite in Congress for closing the brig. Republicans and some Democrats have opposed doing so. And lawmakers of both parties were sure to scrutinize the attorney general's letter on drones.

"The President has directed me to disclose certain information that until now has been properly classified," Holder said in a letter to Senate Judiciary Committee Chairman Patrick Leahy (D-Vermont) that was made public by the Administration.

"Since 2009, the United States, in the conduct of U.S. counterterrorism operations against al-Qa'ida and its associated forces outside of areas of active hostilities, has specifically targeted and killed one U.S. citizen," Awlaki, Holder wrote.

"The United States is further aware of three other U.S. citizens who have been killed in such U.S. counterterrorism operations over that same time period," he wrote. "These individuals were not specifically targeted by the United States."

Awlaki was killed in a drone strike in Yemen on Sept. 30, 2011. His 16-year-old-son, Abdulrahman Anwar al-Awlaki, was killed in another strike two weeks later. Obama was "surprised and upset and demanded an explanation" for the second attack, according to a new book about the president's counter-terrorism strategy.

Two other Americans, Samir Khan and Jude Kenan Mohammed, were also killed in drone attacks, Holder wrote.

The letter also went to the heads of the Armed Services, Intelligence, Foreign Relations, and Judiciary committees of the Senate and House of Representatives, as well as the chambers' top Republican and Democratic leaders.

A White House offiicial confirmed that the disclosure was timed "to coincide with the speech the president will give tomorrow, in which he will discuss our broader counter-terrorism strategy ? including the policy and legal rationale for our use of targeted, lethal force against al-Qaida and its associated forces." It also reflects Obama's commitment "to pursue greater transparency around our counter-terrorism operations," the official said on condition of anonymity.

Holder also disclosed for the first time that Congress knew early on about plans to kill Awlaki.

Top officials ?briefed the appropriate committees of Congress on the possibility of using lethal force against al-Aulaqi,? Holder wrote. ?Indeed, the Administration informed the relevant congressional oversight committees that it had approved the use of lethal force against al-Aulaqi in February 2010 -well over a year before the operation in question -and the legal justification was subsequently explained in detail to those committees, well before action was taken against Aulaqi.?

And the attorney general said that key congressional committees will be briefed on a document that institutionalizes what he called ?exacting standards and processes? for deciding when to capture or kill a suspected extremist ?outside the United States and areas of active hostilities.?

The human rights group Amnesty International reacted with alarm.

?No one should be reassured by Attorney General Holder's letter to Senator Leahy,? Zeke Johnson, the organization?s director of Security with Human Rights, said in a statement.

?The Obama administration continues to claim authority to kill virtually anyone anywhere in the world,? he said. ?An independent investigation into all alleged extrajudicial killings should begin immediately, with remedy for any killings found to be unlawful.?

Leahy said Wednesday he had spoken to Holder. ?I appreciated his briefing about the letter and other matters. I will be reviewing it, among other materials, and look forward to the president's address," the senator said.

By disclosing that the Administration is looking to write formal rules for drone strikes and making another stab at closing Guantanamo Bay, Obama is keeping promises he made in his State of the Union.

?I recognize that in our democracy, no one should just take my word for it that we?re doing things the right way,? he said in that speech. ?So in the months ahead, I will continue to engage Congress to ensure not only that our targeting, detention and prosecution of terrorists remains consistent with our laws and system of checks and balances, but that our efforts are even more transparent to the American people and to the world.?

He's also giving a nod to concerns from Americans -- including many in his Democratic base -- uneasy with both his targeted assassination policy and the prospects of keeping prisoners locked up forever without charge or trial.

Obama?s speech on Thursday also comes as key lawmakers are looking at revising the post-9/11 law that underpins virtually every aspect of the so-called war on terrorism.

The law, best known as the Authorization for the Use of Military Force, or AUMF, sailed through Congress by overwhelming votes shortly after the 2001 terror attacks. It gave the president the power ?to use all necessary and appropriate force against those nations, organizations, or persons he determines planned, authorized, committed, or aided the terrorist attacks that occurred on September 11, 2001, or harbored such organizations or persons, in order to prevent any future acts of international terrorism against the United States by such nations, organizations or persons.?

Critics ? from human rights and civil liberties groups to influential members of Congress ? have argued that the legislation is outdated and that the executive branch has used it for purposes beyond its original intent.

?The fact is that this authority ? has grown way out of proportion and is no longer applicable to the conditions that prevailed that motivated the United States Congress to pass the Authorization for the Use of Military Force that we did in 2001,? Republican Sen. John McCain told a Pentagon witness at a Senate Armed Services Committee hearing last week.

White House spokesman Jay Carney told reporters Wednesday that Obama recognizes the ?absolutely valid and legitimate? criticisms and concerns about his drone policy. And the President agrees ?there need to be structures in place that remain in place for successive administrations so that in the carrying out of counterterrorism policy, procedures are followed that allow it to be conducted in a way that ensures that we?re keeping with our traditions and our laws.?

And the speech itself reflects Obama?s desire to shape the debate.

But the White House attitude towards a re-write of the AUMF has undergone several changes.

In March, spokesman Josh Earnest said the legislation did not need any updating.

?At this point, we feel like we have the authorities we need to go after elements of al Qaeda and those self-identified enemies of the United States and our allies and our interests, and we?re doing that very aggressively in order to protect the American people and our interests,? Earnest said in response to a question from Yahoo News.

By early May, with Congress apparently ready to work on changing the AUMF with or without the White House, the message had changed.

?The Administration welcomes continued engagement with Congress on critical national security issues questions relating to the conflict with the Taliban and al-Qaida,? National Security Council Spokeswoman Caitlin Hayden told Yahoo.

Source: http://news.yahoo.com/blogs/ticket/holder-four-americans-killed-overseas-drone-strikes-since-204200672.html

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Wednesday, May 22, 2013

Crews race to find survivors of Oklahoma twister

Residents pass a destroyed car as they walk through a tornado-ravaged neighborhood Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled against winds. (AP Photo/Charlie Riedel)

Residents pass a destroyed car as they walk through a tornado-ravaged neighborhood Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled against winds. (AP Photo/Charlie Riedel)

An aerial view shows Tower Plazas Elementary school in Moore, Okla., Tuesday, May 21, 2013 as rescue workers make their way through the structure. At least 24 people, including nine children, were killed in the massive tornado that flattened homes and a school in Moore, on Monday afternoon. (AP Photo/Tony Gutierrez)

Dalton Sprading, right, hands a gun to his uncle Roger Craft as he salvages items from his tornado-ravaged home Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening an entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled against winds. (AP Photo/Charlie Riedel)

A member of a security team helps guard an area of rubble from a destroyed residential neighborhood, one day after a tornado moved through Moore, Okla., Tuesday, May 21, 2013. The huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled against the winds. (AP Photo/Brennan Linsley)

Austin Brock holds cat Tutti, shortly after the animal was retrieved from the rubble of Brock's home, which was demolished a day earlier when a tornado moved through Moore, Okla., Tuesday, May 21, 2013. A huge tornado roared through the Oklahoma City suburb Monday, flattening an entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled against winds. (AP Photo/Brennan Linsley)

(AP) ? Emergency crews searched the broken remnants of an Oklahoma City suburb Tuesday for survivors of a massive tornado that flattened homes and demolished an elementary school. At least 24 people were killed, including at least nine children, and those numbers were expected to climb.

The state medical examiner's office cut the estimated death toll by more than half but warned that the number was likely to climb again. Gov. Mary Fallin said authorities did not know how many people were still missing, but they vowed to account for every resident.

"We will rebuild, and we will regain our strength," said Fallin, who went on a flyover of the area and described it as "hard to look at."

Amy Elliott, a spokeswoman for the medical examiner, said she believes some victims were counted twice in the early chaos of the storm that struck Monday afternoon. Downed communication lines and problems sharing information with officers exacerbated the problem, she said.

"It was a very eventful night," Elliott said. "I truly expect that they'll find more today."

Authorities initially said as many as 51 people were dead, including 20 children.

New search-and-rescue teams moved at dawn Tuesday, taking over from the 200 or so emergency responders who worked all night. A helicopter shined a spotlight from above to aid in the search.

Many houses have "just been taken away. They're just sticks and bricks," the governor said, describing the 17-mile path of destruction.

The National Weather Service said the twister was on the ground for 40 minutes, with winds estimated at 190 mph.

Emergency crews were having trouble navigating neighborhoods because the devastation is so complete, and there are no street signs left standing, Fallin added.

Fire Chief Gary Bird said fresh teams would search the whole community at least two more times to ensure that no survivors ? or any of the dead ? were overlooked. Crews painted an 'X' on each structure to note it had been checked.

"That is to confirm we have done our due diligence for this city, for our citizens," Bird said.

The community of 56,000 people, 10 miles south of Oklahoma City, braced for another long, harrowing day.

"As long as we are here ... we are going to hold out hope that we will find survivors," said Trooper Betsy Randolph, a spokeswoman for the Oklahoma Highway Patrol.

More than 200 people had been treated at area hospitals.

Other search-and-rescue teams focused their efforts at Plaza Towers Elementary, where the storm ripped off the roof, knocked down walls and turned the playground into a mass of twisted plastic and metal as students and teachers huddled in hallways and bathrooms.

Oklahoma Gov. Mary Fallin said she watched up close late Monday as rescuers tried to find people in the wreckage of the school.

"It was an incredible sight to see how big the debris field was and how much destruction there was," Fallin said. "It would be remarkable for anyone to survive."

Seven of the nine dead children were killed at the school, but several students were pulled alive from under a collapsed wall and other heaps of mangled debris. Rescue workers passed the survivors down a human chain of parents and neighborhood volunteers. Parents carried children in their arms to a triage center in the parking lot. Some students looked dazed, others terrified.

Officials were still trying to account for a handful of children not found at the school who may have gone home early with their parents, Bird said Tuesday.

Many parents of missing schoolchildren initially came to St. Andrews United Methodist Church, which had been set up as a meeting site. But only high school students were brought to the church, causing confusion and frustration among parents of students enrolled at Plaza Towers. They were redirected to a Baptist church several miles away.

"It was very emotional ? some people just holding on to each other, crying because they couldn't find a child; some people being angry and expressing it verbally" by shouting at one another, said D.A. Bennett, senior pastor at St. Andrews.

After hearing that the tornado was headed toward another school called Briarwood Elementary, David Wheeler left work and drove 100 mph through blinding rain and gusting wind to find his 8-year-old son, Gabriel. When he got to the school site, "it was like the earth was wiped clean, like the grass was just sheared off," Wheeler said.

Eventually, he found Gabriel, sitting with the teacher who had protected him. His back was cut and bruised and gravel was embedded in his head ? but he was alive. As the tornado approached, students at Briarwood were initially sent to the halls, but a third-grade teacher ? whom Wheeler identified as Julie Simon ? thought it didn't look safe and so ushered the children into a closet, he said.

The teacher shielded Gabriel with her arms and held him down as the tornado collapsed the roof and starting lifting students upward with a pull so strong that it sucked the glasses off their faces, Wheeler said.

"She saved their lives by putting them in a closet and holding their heads down," Wheeler said.

The tornado also grazed a theater, and leveled countless homes. Authorities were still trying to determine the full scope of the damage.

Roofs were torn off houses, exposing metal rods left twisted like pretzels. Cars sat in heaps, crumpled and sprayed with caked-on mud. Insulation and siding was smashed up against the sides of any walls that remained standing. Yards were littered with pieces of wood, nails and pieces of electric poles.

President Barack Obama declared a major disaster and ordered federal aid to supplement state and local recovery efforts.

"Among the victims were young children trying to take shelter in the safest place they knew ? their school," he said Tuesday.

The town of Moore "needs to get everything it needs right away," he added.

Obama spoke following a meeting with his disaster-response team, including Homeland Security Secretary Janet Napolitano and top White House officials.

The National Weather Service issued an initial finding that the tornado was an EF-4 on the enhanced Fujita scale, the second most powerful type of twister. It estimated that the twister was at least half a mile wide.

The Storm Prediction Center in Norman, Okla., forecast more stormy weather Tuesday in parts of Texas, Arkansas, Louisiana and Oklahoma, including the Moore area.

In video of the storm, the dark funnel cloud could be seen marching slowly across the green landscape. As it churned through the community, the twister scattered shards of wood, awnings and glass all over the streets.

Monday's tornado loosely followed the path of a killer twister that slammed the region with 300 mph winds in May 1999. It was the fourth tornado to hit Moore since 1998.

The 1999 storm damaged 600 homes and about 100 businesses. Two or three schools were also hit, but "the kids were out of school, so there were no concerns," recalled City Manager Steve Eddy.

At the time of Monday's storm, the City Council was meeting. Local leaders watched the twister approaching on television before taking shelter in the bathroom.

"We blew our sirens probably five or six times," Eddy said. "We knew it was going to be significant, and there were are a lot of curse words flying."

Betty Snider, 81, scrambled inside with her son and husband. She put her husband, who recently had a stroke, in a bathroom, but there wasn't room for both of them. So she and her son huddled in a hallway.

"That is the loudest roar I've ever heard in my life," she said.

She said she didn't have time to do anything. She couldn't duck, couldn't cover her ears, couldn't find another place to hide.

Snider lived through the 1999 tornado, but said this was the closest a twister had ever come to her house, which was still standing.

Monday's twister also came almost exactly two years after an enormous twister ripped through the city of Joplin, Mo., killing 158 people and injuring hundreds more.

That May 22, 2011, tornado was the deadliest in the United States since modern tornado record keeping began in 1950, according to the National Oceanic and Atmospheric Administration. Before Joplin, the deadliest modern tornado was June 1953 in Flint, Mich., when 116 people died.

___

Associated Press writers Sean Murphy and Ramit Plushnik Masti; and Associated Press photographer Sue Ogrocki contributed to this report.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/386c25518f464186bf7a2ac026580ce7/Article_2013-05-21-Oklahoma%20Tornado/id-553a3110e6d94c8f88ea0d0db90882d9

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Resistance to last-line antibiotic makes bacteria resistant to immune system

Resistance to last-line antibiotic makes bacteria resistant to immune system [ Back to EurekAlert! ] Public release date: 21-May-2013
[ | E-mail | Share Share ]

Contact: Jim Sliwa
jsliwa@asmusa.org
202-942-9297
American Society for Microbiology

Bacteria resistant to the antibiotic colistin are also commonly resistant to antimicrobial substances made by the human body, according to a study in mBio, the online open-access journal of the American Society for Microbiology. Cross-resistance to colistin and host antimicrobials LL-37 and lysozyme, which help defend the body against bacterial attack, could mean that patients with life-threatening multi-drug resistant infections are also saddled with a crippled immune response. Colistin is a last-line drug for treating several kinds of drug-resistant infections, but colistin resistance and the drug's newfound impacts on bacterial resistance to immune attack underscore the need for newer, better antibiotics.

Corresponding author David Weiss of Emory University says the results show that colistin therapy can fail patients in two ways. "The way that the bacteria become resistant [to colistin] allows them to also become resistant to the antimicrobials made by our immune system. That is definitely not what doctors want to do when they're treating patients with this last line antibiotic," says Weiss.

Although it was developed fifty years ago, colistin remains in use today not so much because it's particularly safe or effective, but because the choices for treating multi-drug resistant Acinetobacter baumannii and other resistant infections are few and dwindling. Colistin is used when all or almost all other drugs have failed, often representing a patient's last hope for survival.

Weiss says he and his colleagues noted that colistin works by disrupting the inner and outer membranes that hold Gram-negative bacterial cells together, much the same way two antimicrobials of the human immune system, LL-37 and lysozyme, do. LL-37 is a protein found at sites of inflammation, whereas lysozyme is found in numerous different immune cells and within secretions like tears, breast milk, and mucus, and both are important defenses against invading bacteria. Weiss and his collaborators from Emory, the CDC, Walter Reed Army Institute of Research, and Grady Memorial Hospital in Atlanta set out to find whether resistance to colistin could engender resistance to attack by LL-37 or lysozyme.

Looking at A. baumannii isolates from patients around the country, they noted that all the colistin-resistant strains harbored mutations in pmrB, a regulatory gene that leads to the modification of polysaccharides on the outside of the cell in response to antibiotic exposure. Tests showed a tight correlation between the ability of individual isolates to resist high concentrations of colistin and the ability to resist attacks by LL-37 or lysozyme.

This was very convincing, write the authors, that mutations in the pmrB gene were responsible for cross-resistance to LL-37 and lysozyme, but to get closer to a causative link between treatment and cross-resistance, they studied two pairs of A. baumannii isolates taken from two different patients before and after they were treated for three or six weeks with colistin. The results helped confirm the cross-resistance link: neither strain taken before treatment was resistant to colistin, LL-37, or lysozyme, but the strains taken after treatment showed significant resistance to colistin and lysozyme. (One post-colistin isolate was no more or less resistant to LL-37 than its paired pre-colistin isolate.) Like the resistant strains tested earlier, both post-colistin isolates harbored crucial mutations in the pmrB gene that apparently bestow the ability to resist treatment.

The authors point out that the apparent link between resistance to colistin and cross-resistance to antimicrobial agents of the immune system could well extend to other pathogens that are treated with colistin, including Pseudomonas aeruginosa and Klebsiella pneumoniae. Weiss says he plans to follow up with studies to determine whether this bears out.

For Weiss, the problems with colistin are symptomatic of a much larger trio of problems: increasing levels of drug resistance, cuts in federal funding for antibiotic research, and lack of incentives for pharmaceutical companies to invest in antibiotic R&D. "We don't have enough antibiotics, and it's really important for the research community and the public to support increases in funding for research to develop new antibiotics," says Weiss.

"We got complacent for a while and the bugs are becoming resistant. This is something we can reverse - or make a lot better - if we have the resources."

###

mBio is an open access online journal published by the American Society for Microbiology to make microbiology research broadly accessible. The focus of the journal is on rapid publication of cutting-edge research spanning the entire spectrum of microbiology and related fields. It can be found online at http://mbio.asm.org.

The American Society for Microbiology is the largest single life science society, composed of over 39,000 scientists and health professionals. ASM's mission is to advance the microbiological sciences as a vehicle for understanding life processes and to apply and communicate this knowledge for the improvement of health and environmental and economic well-being worldwide.


[ Back to EurekAlert! ] [ | E-mail | Share Share ]

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AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


Resistance to last-line antibiotic makes bacteria resistant to immune system [ Back to EurekAlert! ] Public release date: 21-May-2013
[ | E-mail | Share Share ]

Contact: Jim Sliwa
jsliwa@asmusa.org
202-942-9297
American Society for Microbiology

Bacteria resistant to the antibiotic colistin are also commonly resistant to antimicrobial substances made by the human body, according to a study in mBio, the online open-access journal of the American Society for Microbiology. Cross-resistance to colistin and host antimicrobials LL-37 and lysozyme, which help defend the body against bacterial attack, could mean that patients with life-threatening multi-drug resistant infections are also saddled with a crippled immune response. Colistin is a last-line drug for treating several kinds of drug-resistant infections, but colistin resistance and the drug's newfound impacts on bacterial resistance to immune attack underscore the need for newer, better antibiotics.

Corresponding author David Weiss of Emory University says the results show that colistin therapy can fail patients in two ways. "The way that the bacteria become resistant [to colistin] allows them to also become resistant to the antimicrobials made by our immune system. That is definitely not what doctors want to do when they're treating patients with this last line antibiotic," says Weiss.

Although it was developed fifty years ago, colistin remains in use today not so much because it's particularly safe or effective, but because the choices for treating multi-drug resistant Acinetobacter baumannii and other resistant infections are few and dwindling. Colistin is used when all or almost all other drugs have failed, often representing a patient's last hope for survival.

Weiss says he and his colleagues noted that colistin works by disrupting the inner and outer membranes that hold Gram-negative bacterial cells together, much the same way two antimicrobials of the human immune system, LL-37 and lysozyme, do. LL-37 is a protein found at sites of inflammation, whereas lysozyme is found in numerous different immune cells and within secretions like tears, breast milk, and mucus, and both are important defenses against invading bacteria. Weiss and his collaborators from Emory, the CDC, Walter Reed Army Institute of Research, and Grady Memorial Hospital in Atlanta set out to find whether resistance to colistin could engender resistance to attack by LL-37 or lysozyme.

Looking at A. baumannii isolates from patients around the country, they noted that all the colistin-resistant strains harbored mutations in pmrB, a regulatory gene that leads to the modification of polysaccharides on the outside of the cell in response to antibiotic exposure. Tests showed a tight correlation between the ability of individual isolates to resist high concentrations of colistin and the ability to resist attacks by LL-37 or lysozyme.

This was very convincing, write the authors, that mutations in the pmrB gene were responsible for cross-resistance to LL-37 and lysozyme, but to get closer to a causative link between treatment and cross-resistance, they studied two pairs of A. baumannii isolates taken from two different patients before and after they were treated for three or six weeks with colistin. The results helped confirm the cross-resistance link: neither strain taken before treatment was resistant to colistin, LL-37, or lysozyme, but the strains taken after treatment showed significant resistance to colistin and lysozyme. (One post-colistin isolate was no more or less resistant to LL-37 than its paired pre-colistin isolate.) Like the resistant strains tested earlier, both post-colistin isolates harbored crucial mutations in the pmrB gene that apparently bestow the ability to resist treatment.

The authors point out that the apparent link between resistance to colistin and cross-resistance to antimicrobial agents of the immune system could well extend to other pathogens that are treated with colistin, including Pseudomonas aeruginosa and Klebsiella pneumoniae. Weiss says he plans to follow up with studies to determine whether this bears out.

For Weiss, the problems with colistin are symptomatic of a much larger trio of problems: increasing levels of drug resistance, cuts in federal funding for antibiotic research, and lack of incentives for pharmaceutical companies to invest in antibiotic R&D. "We don't have enough antibiotics, and it's really important for the research community and the public to support increases in funding for research to develop new antibiotics," says Weiss.

"We got complacent for a while and the bugs are becoming resistant. This is something we can reverse - or make a lot better - if we have the resources."

###

mBio is an open access online journal published by the American Society for Microbiology to make microbiology research broadly accessible. The focus of the journal is on rapid publication of cutting-edge research spanning the entire spectrum of microbiology and related fields. It can be found online at http://mbio.asm.org.

The American Society for Microbiology is the largest single life science society, composed of over 39,000 scientists and health professionals. ASM's mission is to advance the microbiological sciences as a vehicle for understanding life processes and to apply and communicate this knowledge for the improvement of health and environmental and economic well-being worldwide.


[ Back to EurekAlert! ] [ | E-mail | Share Share ]

?


AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


Source: http://www.eurekalert.org/pub_releases/2013-05/asfm-rtl051713.php

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Hands-on with prototypes of the Xbox One and new Kinect sensor

Hands-on with prototypes of the next Xbox and Kinect 2.0

We gasped our way through the liveblog. We brought you news of the specs and the software and everything else. But now it's time time to take a deep dive into Microsoft's next-gen console and what it might mean for Earth's living room. Engadget was given exclusive access to the hallowed labs at the heart of this project and to the engineers who made it happen. We got to play with prototypes of the hardware and to discover first-hand whether Kinect 2.0 really can tell if we're winking. Read on past the break and we promise to spare you no detail.

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Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/vGhSJ3E_SyE/

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Lovelorn frogs bag closest crooner

Monday, May 20, 2013

What lures a lady frog to her lover? Good looks, the sound of his voice, the size of his pad or none of the above? After weighing up their options, female strawberry poison frogs (Oophaga pumilio) bag the closest crooner they can, finds research in BioMed Central's open access journal Frontiers of Zoology. This seemingly short-sighted strategy turns out to be the optimal mate choice strategy for these colourful frogs.

Males of the species congregate in the Costa Rican rain forest 'lek-style' to display and call together, giving females the chance to weigh up multiple males at once. But despite their best efforts, build and territory size, females tend to mate with the closest calling male, Ivonne Meuche from the University of Veterinary Medicine, Hannover, Germany, and colleagues report.

The find was confirmed by playback experiments where females, played recordings of various male calls, failed to discriminate between different call rates or frequencies, preferring instead, the nearest speaker.

Female mate choice is a tricky business. Some species chose the first mate that is 'good enough' whilst others seek out and compare many mates before returning to choose the fittest. But the simplest, least costly option is to mate with the first or nearest male encountered, regardless of quality. The strategy doesn't seem an evolutionary winner as it means that nearby, unfit frogs sometimes get to pass on their genes at the expense of more distant, genetically-superior specimens. But it does make sense in certain situations.

Non-choosy behaviour like this has been noted in fishes, and some frog species with a lek-like mating system. It's thought the strategy works for them because it reduces 'costs' in terms of search time and competition for mates. Female strawberry poison frogs may also benefit little from 'shopping around' because strong inter-male competition means the available mates are all much of a muchness.

The team also noted that females unable to find a mate within a certain time period ended up laying unfertilised eggs that never hatch. So in species, like the strawberry poison dart frog, where the choosing sex outnumbers the chosen sex, it makes sense to 'grab the nearest guy' rather than run the risk of not mating at all.

###

Only distance matters - non-choosy females in a poison frog population
Ivonne Meuche, Oscar Brusa, Karl E. Linsenmair, Alexander Keller and Heike Pr?hl
Frontiers in Zoology 2013 10:29, doi:10.1186/1742-9994-10-29

BioMed Central: http://www.biomedcentral.com

Thanks to BioMed Central for this article.

This press release was posted to serve as a topic for discussion. Please comment below. We try our best to only post press releases that are associated with peer reviewed scientific literature. Critical discussions of the research are appreciated. If you need help finding a link to the original article, please contact us on twitter or via e-mail.

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Source: http://www.labspaces.net/128306/Lovelorn_frogs_bag_closest_crooner

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Tuesday, May 21, 2013

Pre-caffeine tech: Tumblr, typewriters, OKCupid cats!

Technology

3 hours ago

via BuzzFeed

via BuzzFeed

Our pre-caffeine roundup is a collection of the hottest, strangest, and most amusing stories of the morning.

Yahoo just bought Tumblr for $1.1B. But don't worry! The company vows "not to screw it up."

Hey! Remember that one time David Karp tweeted about Tumbler being acquired by Yahoo in 2009?

Meanwhile, Xbox is fixin' to flash steel in new console war.

And here's how Google beat Apple to a streaming music service.

Will "digital ethnic cleansing" be part of the Internet's future?Let's find out!

Tapping into old tech: Typewriters are totally making a comeback!

This teen's invention could charge your phone in 20 seconds!

YouTube says users upload more than 100 hours of video per minute to the video-sharing site ... which just turned 8!?

Here's the world's tiniest monkey eating a noodle!

In closing: The 17 creepiest cats you meet on OKCupid!

Compiled by Helen A.S. Popkin, who invites you to join her on Twitter and/or Facebook.

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Ant study could help future robot teams work underground

May 20, 2013 ? Future teams of subterranean search and rescue robots may owe their success to the lowly fire ant, a much-despised insect whose painful bites and extensive networks of underground tunnels are all-too-familiar to people living in the southern United States.

By studying fire ants in the laboratory using video tracking equipment and X-ray computed tomography, researchers have uncovered fundamental principles of locomotion that robot teams could one day use to travel quickly and easily through underground tunnels. Among the principles is building tunnel environments that assist in moving around by limiting slips and falls, and by reducing the need for complex neural processing.

Among the study's surprises was the first observation that ants in confined spaces use their antennae for locomotion as well as for sensing the environment.

"Our hypothesis is that the ants are creating their environment in just the right way to allow them to move up and down rapidly with a minimal amount of neural control," said Dan Goldman, an associate professor in the School of Physics at the Georgia Institute of Technology, and one of the paper's co-authors. "The environment allows the ants to make missteps and not suffer for them. These ants can teach us some remarkably effective tricks for maneuvering in subterranean environments."

The research was scheduled to be reported May 20 in the early online edition of the journal Proceedings of the National Academy of Sciences. The work was sponsored by the National Science Foundation's Physics of Living Systems program.

In a series of studies carried out by graduate research assistant Nick Gravish, groups of fire ants (Solenopsis invicta) were placed into tubes of soil and allowed to dig tunnels for 20 hours. To simulate a range of environmental conditions, Gravish and postdoctoral fellow Daria Monaenkova varied the size of the soil particles from 50 microns on up to 600 microns, and also altered the moisture content from 1 to 20 percent.

While the particle size and moisture content did produce changes in the volume of tunnels produced and the depth that the ants dug, the diameters of the tunnels remained constant -- and comparable to the length of the creatures' own bodies: about 3.5 millimeters.

"Independent of whether the soil particles were as large as the animals' heads or whether they were fine powder, or whether the soil was damp or contained very little moisture, the tunnel size was always the same within a tight range," said Goldman. "The size of the tunnels appears to be a design principle used by the ants, something that they were controlling for."

Gravish believes such a scaling effect allows the ants to make best use of their antennae, limbs and body to rapidly ascend and descend in the tunnels by interacting with the walls and limiting the range of possible missteps.

"In these subterranean environments where their leg motions are certainly hindered, we see that the speeds at which these ants can run are the same," he said. "The tunnel size seems to have little, if any, effect on locomotion as defined by speed."

The researchers used X-ray computed tomography to study tunnels the ants built in the test chambers, gathering 168 observations. They also used video tracking equipment to collect data on ants moving through tunnels made between two clear plates -- much like "ant farms" sold for children -- and through a maze of glass tubes of differing diameters.

The maze was mounted on an air piston which could periodically be fired, dropping the maze with a force of as much as 27 times that of gravity. The sudden movement caused about half of the ants in the tubes to lose their footing and begin to fall. That led to one of the study's most surprising findings: the creatures used their antennae to help grab onto the tube walls as they fell.

"A lot of us who have studied social insects for a long time have never seen antennae used in that way," said Michael Goodisman, a professor in the Georgia Tech School of Biology and one of the paper's other co-authors. "It's incredible that they catch themselves with their antennae. This is an adaptive behavior that we never would have expected."

By analyzing ants falling in the glass tubes, the researchers determined that the tube diameter played a key role in whether the animals could arrest their fall.

In future studies, the researchers plan to explore how the ants excavate their tunnel networks, which involves moving massive amounts of soil. That soil is the source of the large mounds for which fire ants are known.

While the research focused on understanding the principles behind how ants move in confined spaces, the results could have implications for future teams of small robots.

"The problems that the ants face are the same kinds of problems that a digging robot working in a confined space would potentially face -- the need for rapid movement, stability and safety -- all with limited sensing and brain power," said Goodisman. "If we want to build machines that dig, we can build in controls like these ants have."

Why use fire ants for studying underground locomotion?

"These animals dig virtually non-stop, and they are good, repeatable study subjects," Goodisman explained. "And they are very convenient for us to study. We can go outside the laboratory door and collect them virtually anywhere."

The research described here has been sponsored by the National Science Foundation (NSF) under grant POLS 095765, and by the Burroughs Wellcome Fund. The findings and conclusions are those of the authors and do not necessarily represent the official views of the NSF.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_science/~3/BjNHwI4uVzg/130520163222.htm

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Monday, May 20, 2013

Collision closes New York area train route as NTSB investigates

A commuter rail collision Friday injured more than 60 people and left behind a scene of damage that has caused a prominent railroad line near New York City to be partially closed.

Amtrak service between New York and New Haven, Conn., is also closed while the incident is investigated and damage repaired.

At about 6:10 p.m. Friday a Metro-North train heading east from New York City derailed outside Bridgeport, Conn., and was hit by a westbound train on an adjacent track. Some 700 passengers were on board the trains, the Associated Press reported.

The cause was unclear. Some local officials said it did not appear to be terrorism, and a team from the National Transportation Safety Board arrived Saturday to investigate issues ranging from crew performance to the condition of the track.

The New York area?s Metropolitan Transportation Authority (MTA) said its commuter rail service between South Norwalk and New Haven is suspended until further notice, while regular service will operate between Stamford and Grand Central Terminal.

Commuters could be affected all week as the investigation proceeds.

The MTA said damage on the two affected tracks is ?extensive,? and that the two other tracks on this segment of the railway are out of service for a project replacing overhead wires.

?The [damaged] train cars cannot be removed until the on-scene investigation is complete, and they will need to be removed by crane,? the MTA said.

According to news reports, more than 60 people went to hospitals with injuries related to the collision.

Commuter rail accidents are relatively rare. One federal study, looking at the decade between 1996 and 2005, found a declining rate of accidents (with 33 accidents or incidents per million total commuter-train miles in 2005).

Injuries generally totaled fewer than 2,000 per year, and fatalities fewer than 100 per year, during that 10-year period.

Read this story at csmonitor.com

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Source: http://news.yahoo.com/collision-closes-york-area-train-route-ntsb-investigates-200825752.html

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Computer penetration: Create your tomorrow now, Intel charges ...

By Prince Osuagwu

Intel Corporation last week charged the University of Lagos, UNILAG students to learn how to create their tomorrow, today by adopting the usage of computer technology in every aspect of their academic and social activities.

The chip technology manufacturer, challenged the students as it took its youth market based campaign, ?Create Your Tomorrow? project to the institution at the weekend.

The campaign seeks to help the target market especially the new generation of tech-savvy students currently in, and entering institutions of learning to unlock their innate potentials through the use of technology.

The Create Your Tomorrow Campaign also seeks to push information technology as a tool that can be used as an asset, rather than as an obstacle to achieving its intended purpose.

Intel believes that when the usage of PC Technology is deepened among students, it would result into tremendous enhancement of quality of life and living in the society. The company?s Country Manager, Mr Olubunmi Ekundare, said his company designed the campaign to reinforce commitment as sponsors of tomorrow.

He also contended that the initiative would mark Intel out as having exposed the potentials of technology in Nigeria and in Africa as a whole

For him,? today?s students possess unprecedented levels of skill with information technology; they think about and use technology very differently from students of the past era. They love teamwork, experiential activities and the use of technology.? He said.

Ekundare added that ?for us at Intel, championing the cause of technology in Nigeria, Africa and the world is at the heart of our business and this has informed our engagements from inception till date. Intel, more than being interested in propagating the gospel of technology, is interested in the quality it brings to life if properly employed. The campaign will therefore focus on the use of the several unknown benefits that technology provides.?

Activities to mark the Create Your Future campaign included? one-day forum on the campus of the University of Lagos as well as entertaining interactive sessions with Nigerian pop-star, Banky W.

Intel also sponsored three-day internationally certified Technology and Entrepreneurship Training and participants awarded international certification upon successful completion.

The campaign also offered discounts on PC purchases from Intel-powered PC retailers, free HP printers with every HP PC purchase, shopping vouchers, educational and empowerment initiatives, as well as raffle draws.

Comments are moderated. Please keep them clean and brief.

Source: http://www.vanguardngr.com/2013/05/computer-penetration-create-your-tomorrow-now-intel-charges-unilag-students/

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Saturday, May 18, 2013

Why Is This 112-Year-Old Church Floating in the Air?

Art installation? Trick photography? Nope, just a little restoration project going on at Utah's Provo Temple, which was badly damaged in a fire in 2010. Thankfully, the Church of Jesus Christ of Latter-day Saints (LDS) is salvaging the 112-year-old building with a little architectural levitation.

Read more...

    


Source: http://feeds.gawker.com/~r/gizmodo/full/~3/Neonw94_F2A/why-is-this-112-year-old-church-floating-in-the-air-508258626

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Google Play Music, Hangouts, Kicksend, and More

What with Google I/O being this week, there are naturally some wonderful additions to Android's app family from the mothership herself. But that doesn't mean third party developers have just been sitting around twiddling their thumbs?this week's set of apps has offerings from everyone.


Google Hangouts: After taking some major steps forward earlier this week with the announcement that Google Talk support would finally be hitting Outlook, the long-anticipated Babel all-in-one chat service has finally been revealed as... Hangouts. Which yes, we already have sort of?but not like this. [Free]


Google Play Music: Google's rumored Spotify competitor is real, and it's called All-Access. As soon as you start using it, it starts learning your preferences. You have access to everything in the play store. You pick a song, and can instantly create a station based on it, a la Pandora, but with much more control. You'll see the whole playlist ahead of you. You can swipe away tracks you don't want to hear, and you can re-order them at will. [Free]


Festival Ready: Summer approacheth, and with summer comes festivals?all sorts of festivals! Whether you're a music buff, renaissance enthusiast, or food and wine connoisseur there's a festival out there somewhere waiting for you. Now an actual Swiss Army knife is handy to have, but probably won't do you too much good at any of the above. A festival-specific Swiss Armyapp though? Just what ye olde doctor ordered. [Free]


Kicksend: It's easy use your phone to share just one photo or video to a friend, but what about an entire set? Kicksend lets you send large batches of photos and videos to your friends in one fell swoop. It's been on Android for a while, but it's newest update gives the service one very welcome, major new feature: home delivery. Pick photos off your phone and they'll be shipped off in real, physical form to any doorstep of your choosing. [Free]

Source: http://gizmodo.com/google-play-music-hangouts-kicksend-and-more-508310648

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'Over 20 lecturers, relations kidnapped in Delta varsity' - Vanguard

CHAIRMAN, Academic Staff Union of Universities, ASUU, Delta State University, DELSU, Abraka branch, Dr. Emmanuel Mordi, at the weekend, said at least 20 lecturers, their spouses and relations, had been kidnapped in the last two years by gunmen.

He stated this in Abraka while briefing the Commissioner of Police in the state, Mr. Ikechukwu Aduba, who visited the university, just as the Vice Chancellor, Prof Eric Arubayi, confirmed that the university and Abraka community were under siege.
Aduba, however, explained the role police were playing to stem crime in the state, especially in the university community, and pleaded for support in passing useful information to the police.

Mordi, worried by the manner kidnappers had zeroed-in on lecturers, feared they might destroy the academic environment.

He made particular reference to a lecturers in science education, Dr. (Mrs) Mercy Mokobia, kidnapped, on April 9, at about 1.00a.m. in her bedroom and has not been found till date, as well as Dr. Ugochukwu Uzuegbe, abducted, on May 9, in Edo State, but regained freedom after payment of ransom.

His words, ?It is unfortunate and very frightening that it has become our lot in recent years to be saddled with the burden of combating kidnapping and related nefarious acts which have posed? danger to the security of lives and property of our members?.
He regretted that since 2011, ASUU members had been in constant danger of losing their lives to kidnappers and armed bandits.

Aduba took time to explain the measures police had taken to secure the academic community and how it traced the kidnappers of Mokobia to Ozoro, where one of the suspected kidnappers was shot dead and three of the female members arrested with part of the ransom collected by the gang.

He said the police were doing everything to locate the lecturer while detectives were trailing the two fleeing suspects.

The police boss, however, vowed to crush kidnappers and warmed that any building owned by kidnappers or used to hold victims hostage would be demolished.

Comments are moderated. Please keep them clean and brief.

Source: http://www.vanguardngr.com/2013/05/over-20-lecturers-relations-kidnapped-in-delta-varsity/

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Police: Suspect arrested in La. parade shooting

NEW ORLEANS (AP) ? Authorities have arrested the man wanted in a Mother's Day parade shooting that wounded 19 people in New Orleans after he was identified in surveillance video that showed him running from the scene as the crowd scattered in all directions, police said.

Akein Scott, 19, was arrested Wednesday night in the Little Woods section of eastern New Orleans, police department spokeswoman Remi Braden said. She said no additional details were available and would not be until Thursday morning.

A possible motive has not been disclosed, and authorities have not publicly identified any other suspects. Investigators launched an intense search for Scott, with Police Superintendent Ronal Serpas urging him to surrender at a news conference Monday and warning the teen that "we know more about you than you think we know." At one point, SWAT team members and U.S. marshals served a search warrant at one location but did not find Scott.

Police offered a $10,000 reward in the case, and investigators received several tips after images from the surveillance camera were released.

Police previously said Scott had an arrest record involving drug and weapon charges.

Court records show some had been dropped but he was facing a felony charge of illegally carrying a weapon while in possession of a controlled dangerous substance. Scott was scheduled for a court hearing on motions related to that case Thursday. It was not immediately known whether he would be present for that hearing or whether it would be rescheduled.

Video released Monday showed a crowd gathered for the Sunday parade suddenly scattering in all directions, with some falling to the ground. They appear to be running from a man in a white T-shirt and dark pants who turns and runs out of the picture. Police said they identified the suspect from the surveillance camera images.

Police initially said three people were spotted running away from the shooting scene, though Scott has been the only suspect identified publicly.

As many as 400 people had come out for the event. Officers were interspersed with the marchers, which is routine for such events. The crime scene was about a mile-and-a-half from the heart of the city's French Quarter.

Two children were among those wounded.

The mass shooting showed again how far the city has to go to shake a persistent culture of violence that belies the city's festive image.

Gun violence has flared at two other city celebrations this year. Five people were wounded in a drive-by shooting in January after a Martin Luther King Jr. Day parade, and four were wounded in a shooting after an argument in the French Quarter in the days leading up to Mardi Gras. Two teens were arrested in connection with the MLK Day shootings; three men were arrested and charged in the Mardi Gras shootings.

Source: http://news.yahoo.com/police-suspect-arrested-la-parade-shooting-040846143.html

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Friday, May 17, 2013

Growth stocks in command as Wall Street rally gallops on

By Leah Schnurr

NEW YORK (Reuters) - Growth sectors led Wall Street's advance on Friday as encouraging economic data put major U.S. stock indexes on track to close out their fourth week of gains in a row.

Data showed Americans felt better about their economic and financial prospects in early May, with consumer sentiment at its highest in nearly six years, while a gauge of future economic activity rose in April to a near five-year high.

"Sentiment was way higher than expected, so obviously that's good, and that speaks to the fact people are getting more confident," said Doreen Mogavero, CEO of Mogavero, Lee & Co in New York.

The rate of growth in the U.S. economy has been expected to slow in the second quarter as tighter fiscal policy starts to bite. But recent improvement, including in the labor market and retail sales, has suggested the recovery remains resilient.

As slow as it is, "we are still recovering," Mogavero said. "The U.S. (market), for all its woes, is still the best place to be at this moment."

Boeing shares led the industrial sector index <.splrci> higher with a 2.3 percent advance to $98.81, its highest since October 2007.

Earlier in the session, the Dow hit another all-time intraday high at 15,308.79 and the Nasdaq Composite hit its highest since October 2000.

"Investors are looking toward growth sectors," said Bruce Zaro, chief technical strategist at Delta Global Asset Management in Boston.

The Dow Jones industrial average <.dji> gained 72.57 points, or 0.48 percent, to 15,305.79. The Standard & Poor's 500 Index <.spx> rose 10.95 points, or 0.66 percent, to 1,661.42. The Nasdaq Composite Index <.ixic> added 20.80 points, or 0.60 percent, to 3,486.04.

JPMorgan raised its year-end target on the S&P 500 to 1,715 from 1,580, implying a gain of just under 3.5 percent for the index for the rest of the year.

"We realize investors are apprehensive about making fresh money purchases, but we see the risk/reward as particularly attractive in Technology, Healthcare, and Financials," said the client note from JPMorgan's U.S. equity strategist Thomas Lee.

General Motors Co shot up 3.9 percent to $33.64 after CLSA raised its rating on the automaker's stock to "buy" from "underperform.

JCPenney shares lost 3.6 percent to $18.11 after the retailer reported another steep quarterly loss on weak sales and heavy clearance deals, and Chief Executive Myron Ullman cautioned he needs time to fix the company's problems.

Tableau Software surged in its first day of trading as investors bet the rising interest in big data will drive the data analysis software maker's growth. Tableau was up 56.5 percent at $48.53.

S&P Dow Jones Indices said after the close on Thursday that S&P MidCap 400 <.mid> component Kansas City Southern will replace Dean Foods Co in the S&P 500. Kansas City Southern shares gained 0.9 percent to $117.27 while Dean Foods edged up 1.2 percent to $20.83.

Aruba Networks Inc plunged 27.3 percent to $12.81 after the network equipment maker released fourth-quarter results well below Wall Street's expectations, hurt by rising competition from Cisco Systems Inc .

(Additional reporting by Rodrigo Campos; Editing by James Dalgleish)

Source: http://news.yahoo.com/stock-futures-rise-ahead-umich-leading-indicators-data-120747073.html

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Rumors mount for white Nexus 4, may launch with next version of Android

Rumors mount for white Nexus 4, may launch with next version of Android

The white Nexus 4 is stuff that dreams are made of, and the lucky son of a gun at Android and Me, Taylor Wimberly, has one in hand. According to Wimberly's description, it'll be a "carbon copy" of the black Nexus 4, with the same specs and hardware wrapped into the sparkly, snow white casing. That's not the only juicy detail to emerge from Google I/O, however, as Wimberly reports that the smartphone will debut in the Google Play Store on June 10th with Android 4.3. We're currently unable to confirm the rumor, but a growing number of server logs add to the speculation that Android 4.3 could be around the bend. With less than a month to go, it won't be long to know whether this one pans out, but you can be sure that we'll be dreaming of unicorns in the meantime.

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Source: Android and Me

Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/cQhkHlH12I8/

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NGC Proves Concept for New B-2 Satellite Communication System


  • Laboratory Demo Proves Design, Performance of New Company-Designed Antenna

Northrop Grumman Corporation (NYSE:NOC) has successfully completed a ground demonstration of a communication system that would allow the U.S. Air Force's B-2 stealth bomber to operate with the Advanced Extremely High Frequency (AEHF) satellite network.

A photo accompanying this release is available at http://media.globenewswire.com/noc/mediagallery.html?pkgid=18680

The end-to-end tests prove the maturity of the technologies required to begin full-scale development of a new satellite communications system.

Northrop Grumman conducted the demo April 18 at its Space Park facility in Redondo Beach. It included a prototype active electronically scanned array (AESA) antenna developed by the company, a government-furnished Navy Multi-band Terminal and an AEHF engineering model payload.

Northrop Grumman is the Air Force's prime contractor for the B-2, the flagship of the nation's long-range strike arsenal, and one of the world's most survivable aircraft.

"Our tests suggest that once a B-2 is equipped with our new antenna and an extremely high frequency [EHF] radio, communication will occur accurately and securely with the AEHF satellite network during all phases of the aircraft's mission," said Maria Tirabassi, Northrop Grumman's product manager for B-2 EHF antenna systems. "This capability would allow it to operate more effectively in anti-access/area-denial environments."

The company conducted the tests at EHF frequencies using secure transmission techniques, added Tirabassi. Her test team plans to repeat the laboratory demos in the near future using other B-2 satellite terminal candidates, including a government-furnished Family of Beyond Line-of-Sight Terminal.

The AEHF engineering model payload is representative of EHF satellite payloads currently on orbit. It is used by the U.S. Air Force, Navy and Army to test new EHF satellite terminals prior to testing them with operational satellites.

Earlier this year, Northrop Grumman validated the performance of the AESA antenna on instrumented test ranges. The tests verified the antenna's performance over its entire transmit and receive frequency band, and over its required range of scan angles. The AESA antenna will allow the B-2 to send and receive battlefield information at data rates significantly faster than its current satellite communications system.

Following completion of the current AEHF laboratory demos, Northrop Grumman plans to demonstrate the ability of the AESA antenna and a terminal to communicate directly "over the air" with an operational AEHF satellite.

The B-2 is the only long-range, large-payload U.S. aircraft that can penetrate deeply into access-denied airspace, and the only combat-proven stealth platform in the current U.S. inventory. In concert with the Air Force's air superiority fleet, which provides airspace control, and the Air Force's tanker fleet, which enables global mobility, the B-2 can help protect U.S. interests anywhere in the world. It can fly more than 6,000 nautical miles unrefueled and more than 10,000 nautical miles with just one aerial refueling, giving it the ability to reach any point on the globe within hours.

Source : Northrop Grumman Corporation (NYSE:NOC)

Published on ASDNews: May 16, 2013
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Source: http://www.asdnews.com/news-49102/NGC_Proves_Concept_for_New_B-2_Satellite_Communication_System.htm

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