শুক্রবার, ২১ জুন, ২০১৩

Idenix sees delay in human trials for hep C drug as FDA seeks more data

(Reuters) - Idenix Pharmaceuticals Inc said it expects a delay in human trials of one of its experimental hepatitis C drugs after the U.S. Food and Drug Administration asked for additional safety data, sending its shares down 21 percent after the bell.

Clinical trials of the drug, codenamed IDX20963, has been put on hold until it provides a satisfactory response to the FDA, Idenix said in a statement.

Hepatitis C is an disease that affects the liver and if left untreated can lead to cirrhosis, cancer or need for a transplant.

In early February, the company stopped the development of two other hepatitis C drugs, IDX184 and IDX19368, after the FDA continued with a clinical hold, initiated following the death of a patient in a mid-stage trial conducted by Bristol-Myers Squibb Co using a similar compound.

"This signifies that the preclinical/clinical development of any nuc is likely even more challenging than anticipated," Oppenheimer & Co analyst David Ferreiro said in a note.

Idenix's hepatitis C drugs have been developed using a technology called polymerase inhibitors, or nucs. Nucs prevent the virus from multiplying and represent a new class of drugs for the disease.

IDX20963 belongs to a sub-class of nucs called uridine nucleotide, and the company has said previously that it is distinct from the two drugs whose development was stopped.

Ferreiro also noted that this setback occurred even when the drug -- a uridine analog is deemed safer than other nucs.

"Consequently, we continue to hold low expectations for IDX20963's ultimate success," he said.

Idenix shares were down at $4.03 in after-market trading. They closed at $5.13 on the Nasdaq on Thursday.

(Reporting by Pallavi Ail in Bangalore; Editing by Sriraj Kalluvila)

Source: http://news.yahoo.com/idenix-sees-delay-hep-c-drug-human-trials-215236297.html

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বৃহস্পতিবার, ২০ জুন, ২০১৩

Obama pushes big cut in nuclear weapons. Is that a good idea?

In Berlin, President Obama calls for cutting US deployed nuclear weapons by one-third and urges NATO allies to pursue 'the security of a world without nuclear weapons.'

By Peter Grier,?Staff writer / June 19, 2013

President Obama waves before speaking at the Brandenburg Gate in Berlin on Wednesday. Mr. Obama called for a reduction in the world's nuclear stockpiles, including a proposed one-third cut in US and Russian arsenals.

Evan Vucci/AP

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In a Berlin speech on Wednesday, President Obama proposed cutting deployed US strategic nuclear weapons by one-third. These reductions would occur pursuant to US-Russian negotiations aimed at getting the world?s two big nuclear powers to move beyond ?cold war nuclear postures," Mr. Obama said.

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The US president also said he would work with NATO allies to see big cuts in smaller, tactical nuclear weapons based in Europe.

?Peace with justice means pursuing the security of a world without nuclear weapons ? no matter how distant that dream may be,? said Obama.

Obama?s new move to slash US and Russian arsenals comes two years after the last arms agreement between the two nations, New START, went into effect. That pact calls for both to reduce their deployed strategic nukes to 1,550 each by 2018. Further one-third cuts would result in a level of approximately 1,000 such weapons.

Given that the US had an estimated 10,000 strategic warheads in 1980, are further cuts to the 1,000 level a good idea?

Many nuclear experts believe that yes, it would be a good thing. The cuts would lighten the load of nuclear arsenals while still providing enough power to keep the US safe, some say.

One thousand strategic weapons ?are still more than sufficient to assure that the US can deter any major adversary from launching major strikes against the US,? said Jon Wolfsthal, Vice President Joe Biden?s former nuclear adviser and current deputy director of the James Martin Center for Nonproliferation Studies,?in a video commentary.

The reduction would allow the US to cut back on plans to build a new generation of nuclear delivery vehicles, saving $58 billion over the next decade, according to an Arms Control Association statement on the speech.

Obama?s push might help NATO and Russia overcome ?inertia? on tactical nuclear weapons, the ACA added. Russia maintains some 2,000 tactical nukes, of which 1,000 are obsolete air defense warheads, according to an ACA estimate. The US maintains 180 air-delivered nuclear bombs in Europe, in part because some US NATO allies see them as insurance against aggression from Moscow.

Nor do these moves depend on signing a formal new agreement, argued ACA. The US and Russia could simply move forward with parallel, reciprocal reductions.

?In the months ahead, President Obama must re-energize and sustain the nuclear risk reduction enterprise and US policymakers must overcome partisan politics to help address today?s grave nuclear challenges,? writes ACA executive director Daryl Kimball.

Some Republicans believe Obama?s proposal could harm US national security if implemented, however.

Rep. Michael Turner (R) of Ohio, a member of the House Armed Services Committee, charged Obama with cozying up to America?s former superpower nuclear adversary. The president ?seems only concerned with winning the approval of nations like Russia, who will applaud a weakened United States,? said Representative Turner, according to the Associated Press.

At the right-leaning Heritage Foundation, defense analyst Michaela Dodge says?Obama?s moves could sow doubt in the minds of allies and adversaries alike as to the solidity of US nuclear guarantees.

The House Armed Services Committee?s version of fiscal year 2014 defense authorization legislation prohibits elimination of the nuclear triad (bombers, submarines, and ballistic missiles) while limiting the availability of further funds for nuclear reductions, points out Ms. Dodge.

?It is only prudent to wait and assess the effects of the reductions under New START before conducting yet another round of unilateral nuclear weapons reductions, because the treaty does not provide for predictability, and its degraded verification regime makes it more difficult to assess Russia?s nuclear weapons capabilities,? she writes.

There?s also the question of whether Russia is interested in further nuclear cuts. This is especially apropos in light of the strained personal relations between Obama and President Vladimir Putin evident at the recent G8 summit in Northern Ireland.

Alexei Pushkov, head of the foreign affairs committee of the Russian Duma, told Interfax that Obama?s proposals need ?serious revision so that they can be seen by the Russian side as serious and not as propaganda proposals," according to AP.

Source: http://rss.csmonitor.com/~r/feeds/csm/~3/i-jDlJhn1hE/Obama-pushes-big-cut-in-nuclear-weapons.-Is-that-a-good-idea

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Union bring in Oka Nikolov to push Zac MacMath

CHESTER ? The central theme of Philadelphia Union manager John Hackworth?s roster philosophy is the notion of competition.

Wednesday, the club shored up one of the major areas in which that level was lagging.

The Union came to terms with free-agent goalkeeper Oka Nikolov, who has played for the last 22 years with German side Eintracht Frankfurt. Terms of the deal between the club and the 39-year-old ?keeper were not disclosed, per league policy.

The acquisition is pending receipt of a visa for Nikolov, who holds dual German and Macedonian citizenship and has been capped five times by the latter national team. He?s not available to play for the Union until the MLS summer transfer window formally opens July 9, making the July 12 meeting with Chivas USA the first match he?d be eligible for.

?He is first and foremost a fantastic person,? Hackworth said Wednesday at his weekly press conference. ?Something we believe very strongly in is the character of the people we bring into our club, and he certainly epitomizes that. I met with him and was impressed with him as a person as much as his playing record. The fact that he was at Eintracht Frankfurt for so long and is in high regard there says volumes about him as a person and as a player.?

The nuts and bolts of Nikolov?s role with the Union aren?t fully clear, but certain aspects are. First and foremost, there?s the effect on No. 1 goalkeeper Zac MacMath.

?Zac?s absolutely, 100 percent still the starter,? Hackworth said. ?No question about that.?

A large part of Nikolov?s role is also pre-determined, as he?ll come in to serve as a mentor for MacMath, who will turn 22 later this summer and is in his second year as a full-time starter, and backup Chris Konopka, who at age 28 is still in the long-term plans of the Union, according to Hackworth.

But part of that mentorship will be to push both players on the pitch for playing time. Like anyone else, Hackworth has explained to Nikolov that he will have to prove himself to the team and earn whatever minutes may come his way. But his addition is ultimately as a player, not a coach, and the expectation is that he?ll play some role on the pitch beyond merely sharing his experiences. Continued...

?I wouldn?t bring a guy here just to be a practice player in most situations,? Hackworth said. ?But the reason that Oka is coming here is to prove that he can still play at this level in this league. It?s a challenge that he has set out for himself very clearly, but I also think he understands the role and what this means for our club. If Oka plays so well and he deserves it, he?s going to play. But he?s going to have to do an awful lot in our coaching staff?s opinions to unseat our whole feeling about the potential of Zac MacMath and how good he is and how good he can be given the proper pressure even from within the team to improve and make himself better.?

Nikolov may have a lot of miles on the odometer, but that doesn?t mean his career is done. The veteran showed that in recent months at Frankfurt, the club he?s been at since 1991 ? the year MacMath was born. After 18 seasons and 379 league appearances in the first team ? including leading the club to the final of the domestic cup, the DFB Pokal, in 2006 ? Nikolov presided over a large part of the 2010-11 campaign in which Frankfurt was relegated from the Bundesliga.

He helped them return to Germany?s top flight the following year by finishing second in the 2.Bundesliga but was replaced as the starter in 2012-13 by young goalkeeper Kevin Trapp, a rising star in the German youth ranks.

Nonetheless, the veteran returned to a role on the bench, and when Trapp was injured with eight games left in the season, Nikolov stepped in ably. He went 3-2-3 in Frankfurt?s stretch drive, including results in the last five matches (2-0-3) to cap a Cinderella season that saw the club qualify for the Europa League by finishing sixth in the Bundesliga.

It?s the kind of quality that has Hackworth thinking that Nikolov can bring out the best from MacMath. The Union manager is quick to point out the difference between this instance and the last time the Union signed an aging goalkeeper from a German club ? then-39-year-old Faryd Mondragon from Cologne to be the No. 1 for the 2011 season.

While MacMath is the unquestioned starter at this juncture, that could change. The Union are tied for the third-most goals allowed in MLS with 24 and are the only one of the 10 teams in playoff position to have allowed more than 20. Among regular goalkeepers, MacMath ranks third-last in goals against average (1.60) and fifth-worst in save percentage (66).

Hackworth, though, is confident that by having Nikolov follow the same blueprint as the other veteran arrivals to the youthful core of this team, the pressure on MacMath can be harnessed and kept in check.

?It?s certainly a concern, but I think our coaching staff has a lot to do with the players? confidence and where they feel they stand,? Hackworth said. ?For instance, if Oka?s first chance is July 12 and I fly him in and the next day I start him, yeah if I were Zac, I?d be pretty rattled about it. But that?s not the way we?re going to approach this at all. ? Zac knows the situation. He knows he?s still No. 1. He knows that we still believe in him, we trust in him and he?s got a long and hopefully as illustrious a career as Oka has.?

l l l

The Union?s lone injury concern for Sunday?s visit from New York Red Bulls (5 p.m., ESPN2) is Kleberson, who is working his way back to fitness after a hamstring injury. Hackworth called it a ?slow process? and listed him as questionable for the match. Fellow midfielder Michael Lahoud is back in full training after a sports hernia injury and is likely ready for selection. Continued...

Source: http://delcotimes.com/articles/2013/06/19/sports/doc51c236a095669478634684.txt

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Air Camera for iPhone and iPad lets you stream live camera content to an Apple TV via AirPlay

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Air Camera for iPhone and iPad

Air Camera + Live Streaming for Camera and Voice is an app for iPhone and iPad that lets you stream live?sound and image from iOS devices directly from the camera and microphone input to your Apple TV. This uses AirPlay feature in the iOS to connect to the Apple TV. ?In addition this also lets you add effects to the streaming video and also switch between the front and rear camera.

Features of Air Camera?+ Live Streaming for Camera and Voice for iPhone and iPad

  • Choose between front and back camera
  • Stream pictures in real time to AppleTV
  • Stream sound in real time to AppleTV
  • Use the camera from the iPhone, iPad or iPod as streaming device
  • Stream sound and image from iOS devices without previous recording, directly from the camera and microphone input
  • Choose between front and back camera
  • Air Camera turns your iPhone, iPod or iPad in a live streaming device, reproducing the camera and microphone input in real time via AirPlay.
  • Record and save streams
  • Add effects in real time
  • Refine your stream with Sepia FX, Grey FX, Cartoon FX

Download?Air Camera for iPhone and iPad from the Apple iTunes Store for $0.99 / Rs. 55.

Related Posts with Thumbnails

Source: http://www.fonearena.com/blog/73166/air-camera-for-iphone-and-ipad-lets-you-stream-live-camera-content-to-an-apple-tv-via-airplay.html

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Rounds video chat app now lets friends web browse together during ...

Rounds Video Chat and Calling for iOS and Android updated on Tuesday with a new co-browsing feature that enables friends to conduct live video conversations and?securely browse the web together.

A?partnership with Channel.me has integrated the Dutch start-up's co-browser technology into Rounds' iOS and Android?apps, enabling the?synchronisation of touchscreen activity between two mobile users.?

Rounds requires a Facebook friendship for two users to launch video chats with each other.?In addition, thanks to today's update, friends can now surf the web and control their browsing experience. Specific functionality includes clicking links and typing in new URLs. Friends can also view each other's live video streams via a thumbnail preview that's enabled during co-browsing.

Read:?Google+ Hangouts now available, unified messaging and video calling

Rounds' video chat app is similar to Google Hangouts, which?allows people to communicate with each other across platforms over the internet via video calls, talking, texting, sharing photos and much more. However, unlike Google's offering, Rounds is the self-dubbed "first hangout network to let friends securely surf the web together during live video conversations".

Co-browsing works with Google Search, Wikipedia, Preen.Me, Twitter, Instagram, Pinterest, Reddit, Amazon, eBay, ESPN, The Huffington Post, wanelo, Imgur and TheFancy. It also offers?interactive features such as playing HTML5 games during video chats, watching YouTube videos, adding filter effects, doodle capability over each other's video streams and photo-uploading.

As for security, although the video stream depicts two friends as if they're browsing together on one computer in the same location, Rounds clarified that passwords are not visible during the login process.?

The updated Rounds Video Chat and Calling app is available as a free download on Apple's App Store and Google Play. The company said it expected to add more features throughout summer 2013.

Source: http://www.pocket-lint.com/news/121842-rounds-video-chat-app-now-lets-friends-web-browse-together-during-calls

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মঙ্গলবার, ১১ জুন, ২০১৩

AP PHOTOS: Turkey protesters face riot police

A protester holds a flag depicting jailed Kurdish rebel leader Abdullah Ocalan as a van burns during clashes at the Taksim Square in Istanbul Tuesday, June 11, 2013.Hundreds of riot police overran improvised barricades at Istanbul's Taksim Square on Tuesday, firing tear gas, rubber bullets and water cannons in running battles with protesters who have been occupying the area for more than a week. (AP Photo/Vadim Ghirda)

A protester holds a flag depicting jailed Kurdish rebel leader Abdullah Ocalan as a van burns during clashes at the Taksim Square in Istanbul Tuesday, June 11, 2013.Hundreds of riot police overran improvised barricades at Istanbul's Taksim Square on Tuesday, firing tear gas, rubber bullets and water cannons in running battles with protesters who have been occupying the area for more than a week. (AP Photo/Vadim Ghirda)

A protester holding a slingshot runs past burning construction vehicles during clashes at the Taksim Square in Istanbul Tuesday, June 11, 2013. Some hundreds of police in riot gear forced their way through barricades in the square early Tuesday, pushing many of the protesters who had occupied the square for more than a week into a nearby park. (AP Photo/Vadim Ghirda)

Turkish riot police fire tear gas during clashes at the Taksim Square in Istanbul Tuesday, June 11, 2013. Some hundreds of police in riot gear forced their way through barricades in the square early Tuesday, pushing many of the protesters who had occupied the square for more than a week into a nearby park. (AP Photo/Vadim Ghirda)

Turkish riot police fire tear gas during clashes at the Taksim Square in Istanbul Tuesday, June 11, 2013. Some hundreds of police in riot gear forced their way through barricades in the square early Tuesday, pushing many of the protesters who had occupied the square for more than a week into a nearby park. (AP Photo/Vadim Ghirda)

Protesters seek cover as riot police charge during clashes at the Taksim Square in Istanbul Tuesday, June 11, 2013. Some hundreds of police in riot gear forced their way through barricades in the square early Tuesday, pushing many of the protesters who had occupied the square for more than a week into a nearby park. (AP Photo/Vadim Ghirda)

Hundreds of police in riot gear attempted to clear Istanbul's central Taksim Square of anti-government protesters who have been occupying the area for more than a week. Police used tear gas and water cannon against the crowd. Protesters exploded fireworks, threw stones and waved banners as several fires burned in the square.

Here are images from the clashes.

Follow AP photographers and photo editors on Twitter: http://apne.ws/15Oo6jo

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/3d281c11a96b4ad082fe88aa0db04305/Article_2013-06-11-EU-Turkey-Protest-Photo-Gallery/id-c8381cc137f748259b44a2456f0a14b4

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Sony PlayStation 4 price: $399

Sony PlayStation 4 price $399

Sony has finally revealed release information about its PlayStation 4 console: that it plays used, lent or rented games with no restrictions and its price: $399. That translates to 399 euros, and £349 where applicable, or if you missed it, $100, 100 euros and £70 less than what Microsoft just announced for the Xbox One. There's no specific release date or month yet, just "this holiday season" in the US and Europe. The official spec list confirms that for four bills, you get the system, a controller, USB, HDMI and power cables -- but no PlayStation 4 Eye.

So tell us, has this made your decision any easier? Pre-orders are open now.

Follow our liveblog for all of the latest news from E3 2013.

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Source: http://www.engadget.com/2013/06/10/sony-playstation-4-price/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget

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Bombs hit Syrian capital, at least 14 killed

In this photo released by the Syrian official news agency SANA, Syrian army soldiers stand guard at a scene of two explosions in the central district of Marjeh, Damascus, Syria, Tuesday, June 11, 2013. Two explosions hit a central Damascus square Tuesday, killing and wounding dozens of people, activists and the state media reported. State TV said the blasts were caused by suicide bombers, while activists said they were bombs planted there in advance. (AP Photo/SANA)

In this photo released by the Syrian official news agency SANA, Syrian army soldiers stand guard at a scene of two explosions in the central district of Marjeh, Damascus, Syria, Tuesday, June 11, 2013. Two explosions hit a central Damascus square Tuesday, killing and wounding dozens of people, activists and the state media reported. State TV said the blasts were caused by suicide bombers, while activists said they were bombs planted there in advance. (AP Photo/SANA)

In this photo released by the Syrian official news agency SANA, Syrians inspect damaged shops at a scene of two explosions in the central district of Marjeh, Damascus, Syria, Tuesday, June 11, 2013. Two explosions hit a central Damascus square Tuesday, killing and wounding dozens of people, activists and the state media reported. State TV said the blasts were caused by suicide bombers, while activists said they were bombs planted there in advance. (AP Photo/SANA)

In this photo released by the Syrian official news agency SANA, Syrians inspect damaged shops at a scene of two explosions in the central district of Marjeh, Damascus, Syria, Tuesday, June 11, 2013. Two explosions hit a central Damascus square Tuesday, killing and wounding dozens of people, activists and the state media reported. State TV said the blasts were caused by suicide bombers, while activists said they were bombs planted there in advance. (AP Photo/SANA)

In this photo released by the Syrian official news agency SANA, Syrians inspect a damaged shop at a scene of two explosions in the central district of Marjeh, Damascus, Syria, Tuesday, June 11, 2013. Two explosions hit a central Damascus square Tuesday, killing and wounding dozens of people, activists and the state media reported. State TV said the blasts were caused by suicide bombers, while activists said they were bombs planted there in advance. (AP Photo/SANA)

(AP) ? Two suicide bombers hit a central Damascus square during rush hour Tuesday, killing at least 14 people, activists and the Syrian state media reported. Activists said one of the explosions took place inside the police station there and that many among the dead were policemen.

The blasts were the first major attack in the Syrian capital since the regime recaptured the strategic town of Qusair, held by the rebels for over a year.

The regime is believed to be building on its victory there to clear rebels from areas they held in the center of Syria, a linchpin area linking Damascus with the regime strongholds on the Mediterranean coast. Backed by fighters from Lebanon's Shiite group Hezbollah, the regime took control of Qusair, near the Lebanon border, after a three-week offensive.

A security official quoted by state TV said two "terrorist" suicide bombers struck near a police station in the bustling Marjeh Square in the heart of the capital. He said 14 were killed and another 31 were wounded.

The Britain-based Syrian Observatory for Human Rights, which has a network of activists on the ground in Syria, said 15 were killed in the explosions, one of which was caused by a man who blew himself up inside the police station in the square. The Observatory said the other explosion occurred outside the police station.

Suicide and car bombs have become common in Damascus. Some of the deadliest attacks targeting security installations have been claimed by the al-Qaida-linked Jabhat al-Nusra ? one of scores of rebel factions fighting the forces of President Bashar Assad.

The Syrian state-TV Ikhbariya showed footage from the explosion scene of broken shop facades, with blood splattered on the pavements and inside shops. Footage also showed mangled cars in the central square as ambulance workers were seen carrying the wounded on stretchers.

The regime triumph in Qusair has emboldened Assad. Syrian state-run media and the Hezbollah-owned Al-Manar TV have said the regime is preparing an offensive reportedly named Operation Northern Storm to recapture Aleppo. The regime was also believed to be advancing on rebel-held areas in the center of Homs.

The Britain-based Observatory reported clashes between rebels and regime forces in the rebel-held neighborhood of Dar-al-Sayah in Homs city, resulting in casualties among the opposition fighters. The group also reported fighting in Aleppo city early Tuesday, between rebels and regime fighters in what appeared to be an attempt to storm two neighborhoods held by the opposition.

Activists in Aleppo and Homs have claimed that regime forces' military operations in the two cities have been backed by fighters from Hezbollah.

The Observatory also said there were reports of fighting in the southern Daraa province around a village that has been contested between the two sides for the past few days.

The recent push by the forces of Assad has added a sense of urgency to calls for the international community to arm the rebels. U.S. officials said a meeting is planned Wednesday between President Barack Obama and his senior national security staff to weigh options for providing assistance to the rebel fighters.

Marjeh Square was scene to other attacks earlier this year. It houses the Syrian Interior Ministry, which was previously targeted.

There was no immediate claim of responsibility.

On Saturday, a suicide bomber detonated his explosives-laden car in the central city of Homs, tearing through an area largely populated by the regime's Alawite sect and killing seven people.

Syria's conflict started with largely peaceful protests against Assad's regime in March 2011 but eventually turned into a civil war that has killed more than 80,000 people, according to the United Nations.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/3d281c11a96b4ad082fe88aa0db04305/Article_2013-06-11-Syria/id-6205955a0d33426eb8c5bc37c1b40623

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Self-fertilizing plants contribute to their own demise

June 10, 2013 ? Many plants are self-fertilizing, meaning they act as both mother and father to their own seeds. This strategy -- known as selfing -- guarantees reproduction but, over time, leads to reduced diversity and the accumulation of harmful mutations. A new study published in the scientific journal Nature Genetics shows that these negative consequences are apparent across a selfing plant's genome, and can arise more rapidly than previously thought.

In the study, an international consortium led by Stephen Wright in the Department of Ecology and Evolutionary Biology at the University of Toronto sequenced the genome of the plant species Capsella rubella, commonly known as Red Shepherd's Purse. They found clear evidence that harmful mutations were accumulating over the species' relatively short existence.

"The results underscore the long-term advantages of outcrossing, which is the practice of mating between individuals, that gives us the wide array of beautiful flowers," said Wright. "Selfing is a good short-term strategy but over long timescales may lead to extinction."

Red Shepherd's Purse is a very young species that has been self-fertilizing for less than 200,000 years. It is therefore especially well-suited for studying the early effects of self-fertilization. By contrasting Red Shepherd's Purse with the outcrossing species that gave rise to it, the researchers showed that self-fertilization has already left traces across the genome of Red Shepherd's Purse.

"Harmful mutations are always happening," said Wright. "In crops, they could reduce yield just as harmful mutations in humans can cause disease. The mutations we were looking at are changes in the DNA that change the protein sequence and structure."

The findings represent a major breakthrough in the study of self-fertilization.

"It is expected that harmful mutations should accumulate in selfing species, but it has been difficult to support this claim in the absence of large-scale genomic data," says lead author Tanja Slotte, a past member of Wright's research team and now a researcher at Uppsala University. "The results help to explain why ancient self-fertilizing lineages are rare, and support the long-standing hypothesis that the process is an evolutionary dead-end and leads to extinction."

The researchers said that with many crops known to be self-fertilizing, the study highlights the importance of preserving crop genetic variation to avoid losses in yield due to mutations accumulating.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_environment/~3/1Q3TfhatJtA/130610095148.htm

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সোমবার, ১০ জুন, ২০১৩

2 Obama cabinet nominees clear Senate committee

WASHINGTON (AP) ? A Senate committee has voted unanimously to approve President Barack Obama's nominees to head the Commerce and Transportation departments.

The Commerce, Science and Technology Committee didn't bother to meet to vote on the nominations of Chicago billionaire business executive and philanthropist Penny Pritzker for Commerce and Charlotte, N.C., Mayor Anthony Foxx for Transportation. Senators instead dropped by a room off the Senate floor, where a committee clerk recorded their "ayes."

Pritzker is a longtime Obama friend who raised hundreds of thousands of dollars for his presidential campaigns.

Foxx won national recognition when Charlotte hosted the Democratic National Convention last year. He was a key surrogate in North Carolina for Obama during his re-election.

Republican Sen. John Thune of South Dakota said he expected Pritzker and Foxx to be confirmed easily.

Source: http://news.yahoo.com/2-obama-cabinet-nominees-clear-senate-committee-231012609.html

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5th victim of Santa Monica shooting dies

SANTA MONICA, Calif. (AP) ? A woman who was critically wounded in the Santa Monica shooting rampage has died, bringing the total number of victims killed by the gunman to five.

Santa Monica College officials say 26-year-old Marcela Franco died Sunday at Ronald Reagan UCLA Medical Center.

She had been a passenger in a Ford Explorer driven by her father, 68-year-old campus employee Carlos Navarro Franco, who also was killed in the attack.

Police shot the gunman dead in the school's library Friday.

The shooter has not been identified because police are working to contact his next of kin.

Source: http://news.yahoo.com/5th-victim-santa-monica-shooting-dies-183258886.html

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Raw Five-Point Preview: June 10, 2013

All WWE programming, talent names, images, likenesses, slogans, wrestling moves, trademarks, logos and copyrights are the exclusive property of WWE, Inc. and its subsidiaries. All other trademarks, logos and copyrights are the property of their respective owners. ? 2013 WWE, Inc. All Rights Reserved. This website is based in the United States. By submitting personal information to this website you consent to your information being maintained in the U.S., subject to applicable U.S. laws. U.S. law may be different than the law of your home country. WrestleMania XXIX (NY/NJ) logo TM & ? 2013 WWE. All Rights Reserved. The Empire State Building design is a registered trademark and used with permission by ESBC.

Source: http://www.wwe.com/shows/raw/2013-06-10/five-point-preview

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Iran ups cyber attacks on Israeli computers: Netanyahu

By Maayan Lubell and Jeffrey Heller, Reuters

TEL AVIV ? Israeli Prime Minister Benjamin Netanyahu accused Iran and its Palestinian and Lebanese allies on Sunday of carrying out "non-stop" cyber attacks on major computer systems in his country.

He gave no details on the number of attacks but said "vital national systems" had been targeted. Water, power and banking sites were also under threat, he added.

"In the past few months, we have identified a significant increase in the scope of cyber attacks on Israel by Iran. These attacks are carried out directly by Iran and through its proxies, Hamas and Hezbollah," he told a conference on cyber warfare in his country's commercial hub Tel Aviv.

"Despite the non-stop attacks on us, you hear only about a few of them because we thwart most of them," he added.

Netanyahu established a national cyber directorate in 2011 charged with protecting Israel's computer systems from disruption.

Israel and the United States are widely believed to be behind a series of cyber attacks in recent years against an Iranian nuclear program they say is aimed at developing atomic weapons. Iran says its nuclear activities are peaceful.

Two months ago, Israel said it weathered a pro-Palestinian cyber attack campaign against government websites. Israeli officials said those attacks briefly disrupted several sites and security protocols were updated in response.?

Copyright 2013 Thomson Reuters. Click for restrictions.

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Obama's 'try anything' bid to woo GOP moves from dinner to golf course

President Obama hit the golf course Monday with two Republican senators in an effort to build support for his second-term agenda. He has also had several dinners with GOP lawmakers.

By David Cook,?Staff writer / May 6, 2013

President Obama, far right, with from left to right, Sen. Saxby Chambliss (R) of Georgia, Sen. Mark Udall (D) of Colorado, and Sen. Bob Corker (R) of Tennessee, on the golf course at Andrews Air Force Base, Md., Monday.

Pablo Martinez Monsivais/AP

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In an effort to build support for his second-term agenda, President Obama hit the golf course Monday with two Republican senators ? part of what White House spokesman Jay Carney said is a ?try anything? approach.

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The president left the White House on an overcast Monday at 12:23 p.m. for the 21-minute drive to the golf course at Andrews Air Force Base in Maryland. The golfing foursome included Republican Sens. Bob Corker of Tennessee and Saxby Chambliss of Georgia, as well as Democratic Sen. Mark Udall of Colorado.

The White House acknowledged that the golf excursion was part of its outreach to Republicans in Congress, which also included a dinner with a bipartisan group of women senators and two dinners with Republican senators. The administration is trying to build support for Mr. Obama?s second-term agenda, which includes immigration reform and an agreement to deal with America's fiscal woes.

?He is willing to try anything,? Mr. Carney said at Monday?s press briefing. ?And whether it?s a conversation on the phone or a meeting in the Oval Office or a dinner in a restaurant or dinner in the residence, he going to have the same kind of conversations."

The president loves to golf but rarely uses it for political purposes. He has played golf 121 times during his presidency, triggering some criticism, says CBS correspondent Mark Knoller, who tracks presidential activities. But Monday?s outing is only the fourth time he has invited a member of Congress to join his golf foursome, Mr. Knoller says. The other times have been once with House Speaker John Boehner (R) of Ohio and two invitations to Rep. James Clyburn (D) of South Carolina.

Monday?s golfing partners have dual appeal: They are good at the game and seen as key to reaching a bipartisan agreement on a deficit reduction package. Golf Digest?s 2011 survey of Washington?s best golfers ranked Senator Udall 11th, Senator Corker 12th, and Senator Chambliss 37th, according to USA Today?s David Jackson.? Obama?s ranking in the same survey: 108th.

Chambliss has made a multiyear effort to craft a bipartisan budget reduction package. So far, as The Wall Street Journal notes, that effort has not led to a grand bargain that Obama seeks. For his part, Corker said in March that he would be open to raising tax revenue as part of a broader deal that makes changes in Social Security and Medicare. ?

There is no word yet on what progress the golfers made on policy issues. The press pool accompanying the president was able to only briefly observe the golfing action. On the first green, Obama chipped his first shot past the hole and ?later appeared to miss a putt,? said pool reporter Bartholomew Sullivan of Scripps Howard News Service.

Source: http://rss.csmonitor.com/~r/feeds/csm/~3/4XHpEHlnnjQ/Obama-s-try-anything-bid-to-woo-GOP-moves-from-dinner-to-golf-course

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Community Spotlight: Should I Get the Samsung Galaxy S4 or HTC One?

Should I Get the Samsung Galaxy S4 or HTC One?

There has been no shortage of discussion on this very subject.  If you’ve been to the forums in the past month (if you haven’t, shame on you) then you’ve surely come across at least one thread with the question “Should I get the Galaxy S4 or the HTC One?”  It’s a question that doesn’t have a right answer, or at least not one that anyone can provide for you.  Hearing other people’s opinions can definitely help, though, especially if those people already own the devices you’re trying to decide between.

Mello_Asian asks this very question of our forum members:

“Hey, everyone! My contract is close to its expiration, and I was wondering what phone I should get to replace my LG Optimus S. Both the HTC One and GS4 are great phones, and I'd be very complacent to get either one of them since they are a HUGH upgrade from the Optimus S.

However, as a high school student, I was wondering which of them would be much better/more helpful/more convenient for me in the next two years under a new contract. I'll be using my phone more for the camera, music player, more accessible games to pass time, and to help me with certain tasks with the browser or certain apps (searching up things, sparknotes, AP notes, etc.)”

Coming from an Optimus S one thing is certain, either device will definitely be a huge upgrade.  It seems that entertainment is a core use, as well as some specific features to help with school.  So what are other members saying?

read more

    


Source: http://feedproxy.google.com/~r/androidcentral/~3/J7hhsUFzB8s/story01.htm

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Joy Marini, MS, PA-C: Beyond Newborn Survival: Hope For The First Day

On the day that a woman's first child is born, a mother is "born" as well. A woman has nine months to prepare for the day that her baby will arrive -- healthy and full of promise, imagining the love she and her child will have for each other. Sadly, every year, more than one million babies die on the first day of life -- many from preventable causes. The first day of life that a mother has so joyfully anticipated is also the most fragile and often the most risky of a child's life, no matter where in the world the baby is born. This week, the 2013 State of the World's Mothers Report (SOWM) will be released. It's sober title "Surviving the First Day" reflects just how dangerous that first day is for so many mothers and babies.

Last month, I visited a hospital in Debarq, a town in the north of Ethiopia close to the Sudanese border. Climbing, almost running, up the long hill to the hospital were eight men carrying a woman in a litter that was made of rough-hewn sticks tied together with strings. They carried her on their shoulders and took turns rotating in and out to bear the weight. I was puzzled by the sight.

Gurney
Gurney made of rough-hewn sticks tied together with string.

My colleague, Sinan Kaddaj, Secretary General, WAHA International, explained that this was a local "ambulance." Pregnant women in labor are sometimes carried by husbands, brothers and neighbors for days to arrive at the closest hospital. The delay to arrive at the hospital leaves both the pregnant woman and baby in danger.

I wondered how long this woman had been in labor and whether she would arrive in time for help. Every day nearly 800 women and 8000 newborns die -- mostly due to preventable complications that arise during childbirth. Nearly all of these deaths occur in the developing world where mothers and babies don't have access to care from causes, including lack of transport, trained birth attendants, or life-saving products such as resuscitation equipment or antibiotics. With over 28,000 births and a first-day mortality rate of 11 out of 1000 births, Ethiopia ranks toward the top in the more dangerous countries for a mother and newborn. Contrast this with a first-day mortality rate of less than 1 out of 1000 births in the industrialized countries such as Sweden and Singapore.

I had hoped that this woman arrived at the hospital in time because Debarq Hospital has a newly graduated Integrated Emergency Obstetric Surgeon (IEOS), Minale Setargein, MSc, to care for birth emergencies. She would have a skilled birth attendant and, if needed, a surgeon who can perform a caesarean section. Having skilled care at birth is a key factor for maternal and newborn survival. This fact was a driver for the Johnson & Johnson partnership with the Health 4+ (WHO, UNICEF, UNFPA, UNWomen, UNAIDS, World Bank) to train skilled birth attendants in Ethiopia, Tanzania and Zanzibar. In Ethiopia, the IEOS will help to fill a key gap in care between a midwife and an obstetrician.

Perhaps a more optimistic title for the State of the World's Mothers Report could be "Hope for the First Day," for all mothers and newborns, as "surviving" should be ordinary. The extraordinary is within our grasp -- hope for all the possibilities for the future that every newborn should have.

What you can do to bring hope to mothers and newborns:

  • Urge friends, local organizations, and government to support maternal and newborn care.
  • Join Save the Children's global newborn and child survival campaign. Visit everone.savethechildren.net to make your voice heard.

?

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Source: http://www.huffingtonpost.com/joy-marini-ms-pac/jnj-newborn-survival-hope-first-day_b_3225491.html

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The presidential agenda: South Korea and some fundraising (Washington Bureau)

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Urgent action needed to stop asbestos death toll says East Midlands ...

A new report by the European Parliament calls for the removal of asbestos from all European public buildings by 2028. East Midlands MEP Glenis Willmott explains why she backs the move.

YOU may not think of education as a dangerous occupation but 128 school teachers died from the asbestos-related lung cancer mesothelioma between 2002 and 2010, according to figures from the Health and Safety Executive.

  1. MEP Glenis Willmott wants to see asbestos removed from all buildings open to the public.

  2. MEP Glenis Willmott wants to see asbestos removed from all buildings open to the public.

And the campaign group Asbestos in Schools says that this figure underestimates the true scale of mesothelioma deaths among teachers because it does not include those aged 75 and over.

Asbestos support and campaign groups like the Derbyshire Action Support Team (DAST) report that they are increasingly being contacted by former teachers, lecturers, nurses and other healthcare workers who have been exposed to asbestos while working in schools, colleges, hospitals and other public buildings.

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The individual stories are heart-rending: Gina Lees was a primary school teacher for 30 years and died from mesothelioma aged just 51; Diane Willmore was just 49 when she died from mesothelioma after she was exposed to asbestos dust as a pupil at her old secondary school.

And for every Gina and Diane there is an equivalent family tragedy in parts of every other country in Europe, which is why the report we agreed in the European Parliament recently touches so many lives.

There may well be more in the future. Derby's coroner Dr Robert Hunter recently told the Derby Telegraph ? which has long campaigned to raise awareness about the dangers of asbestos ? that he fears that many more teachers, nurses, pupils and wives of men in manufacturing jobs could develop diseases caused by the dust.

Several women have already developed mesothelioma after they were exposed to asbestos while washing their husbands' contaminated work clothes.

In total, more than 35,000 people died from the asbestos-related lung cancer mesothelioma in the UK between 1997 and 2007.

There are now some 4,000 asbestos-related deaths every year ? a figure that experts say will keep rising over the next few years.

In Derby and South Derbyshire alone, the coroner's court held 48 inquests into asbestos-related diseases in 2011 compared with 34 in 2005.

Behind these statistics are stories of pain, hardship and bereavement. The families of those diagnosed with mesothelioma frequently talk about their shock and feelings of devastation.

One woman described how she and her husband received the news: "They told us that there was no cure and that Jim probably had approximately 10-12 months to live. Our world fell apart. I went home to tell our two sons, who were aged 21 and 24, the devastating news."

There is no cure for the disease. Many of the deaths occurring now are the legacy of industrial conditions in the 1960s and 70s, the height of asbestos manufacture and use, when workers breathed in asbestos dust while working in traditional industries.

There is usually a long delay, in some cases more than 40 years, from when people are first exposed to asbestos fibres to the onset of disease.

But many workers are still being exposed to asbestos, with those now most at risk being tradespeople like joiners, electricians and plumbers who may come into contact with asbestos while carrying out repairs and maintenance in buildings containing asbestos.

Doctors are also seeing relatively young people coming to them with asbestos-related diseases.

Andrew Burns was born in 1969. He developed mesothelioma after being exposed to asbestos while working as a young apprentice in the electrical installation industry.

That's why the European Parliament report calling for the removal of asbestos from all public buildings and buildings requiring public access by 2028 is so important.

The vast majority of MEPs backed the report, though I was sorry to see that Tory MEPs joined those from the BNP and UKIP ? who continue to argue that white asbestos is "harmless" despite overwhelming evidence to the contrary ? in voting against it.

Fortunately, they were in a minority of just 51 out of 754 MEPs.

The resolution will build on UK safety rules emanating from Europe that have already banned the mining of asbestos and the manufacture, processing and use of asbestos products, and protect workers from the risks of exposure to asbestos in their workplace.

The report also calls for a screening and registration programme for public buildings contaminated by asbestos as well as a road map for asbestos-free workplaces and an asbestos-free environment.

It calls for more action on asbestos waste and for people to be better informed about the risk of asbestos contamination in their homes ? at present, Poland is the only member state to have adopted an action plan for an asbestos-free country.

And it calls for victims to be properly compensated. The UK Government finally announced a compensation scheme for all newly-diagnosed victims of mesothelioma last year. The new scheme will mean that sufferers who cannot trace their former employer and/or insurer will receive compensation. However, it will not start paying out until 2014, will only cover half of victims of asbestos-related conditions and the proposed tariff system of payments will not pay out full compensation.

Britain has the highest rates of mesothelioma in the world, with someone dying from the disease every five hours. This European Parliament report should serve as a wake-up call to the Coalition Government about the need to take urgent action and stop this asbestos death toll.

Source: http://www.thisisderbyshire.co.uk/Urgent-action-needed-stop-asbestos-death-toll/story-18903827-detail/story.html

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Gitmo detainees' lawyer describes 'brutal' force-feeding of hunger strikers

New photos released by the U.S. military show how it is dealing with the hunger strike in Guantanamo Bay, NBC's Michael Isikoff reports.

By Michael IsikoffNBC News national investigative correspondent

Hunger-striking detainees at the Guantanamo detention facility are being force-fed through tubes inserted into their noses twice a day -- causing them to gag for air and vomit -- during a procedure that a U.S. military defense lawyer just returned from the U.S. base in Cuba described as ?brutal? and agonizing.

Lt. Col. Barry Wingard, who represents two Kuwaiti detainees at Guantanamo, told NBC News on Sunday that one of his clients described being shackled by his wrists and around his waist ?while food is ?dumped into this throat? for up to two hours at a time.? His comments came as the U.S. military released new photos showing the chair to which hunger-striking detainees are strapped, and bottles of Ensure, the nutritional supplement, that they are being fed.

?When that tube goes up your nose, your eyes begin to water, as it passes through the back of your skull. As it passes through your throat, you begin to gag and you begin to suck for air until it's passed into your stomach,? Wingard said. ?It?s agony, according to my client.

?The more times that you?ve been force-fed this way, the more your nose gets inflamed, the more your esophagus begins to burn, the more your stomach begins to burn.?

Ronald Flanders, a spokesman for the U.S. Southern Command, said Sunday the force-feeding is a ?legally approved procedure? used by the U.S. Bureau of Prisons ?? and that the technique is similar to that used for the elderly and small children. He also said the procedure is necessary to save lives. ?We have an obligation to keep these folks safe,? he said.

The procedure is controversial within the medical community. The American Medical Association recently wrote a letter to Defense Secretary Chuck Hagel saying the force-feeding ?violates core ethical values of the medical profession? when a prisoner makes a rational decision to refuse food.

Of the 166 detainees at Guantanamo,?100 are now hunger striking and 23 are being force-fed, according to the U.S. military?s latest figures.

The widening protest last week prompted President Barack Obama to renew his efforts to shutter the prison, used to hold suspected terrorists taken into custody in overseas battlefields. ?The idea that we would still maintain forever a group of individuals who have not been tried, that is contrary to who we are, it is contrary to our interests and it needs to stop,? he said.

Congress has so far blocked his efforts, placing restrictions on transferring the detainees to foreign jurisdictions or bringing them into federal prisons in the United States. ?The fact is there?s been no coherent plan presented to the Congress of the United States as to how we would dispose of these individuals,? Republican Sen. John McCain said Sunday on Fox News. ?And one of them is not to send them back into the fight where they can kill more Americans.?

Wingard, who returned from a five-day trip to Guantanamo last week, said conditions at the facility are ?dire and getting worse.? One of his clients, a Kuwaiti named Faiz al-Kandari, has lost a third of his body weight and now weighs 105 pounds but appears determined to continue, he said. Aggravating the situation, 86 detainees have been cleared for release or transfer, but efforts to send them home have stalled, making them more desperate, he said.

As for renewed talk by Obama and others about closing the base, Wingard said, ?These men have heard these words for the past eleven and one half years. They?re not going to be brutalized into submission, and I think the net result will be some of them will die.??

More from Open Channel:

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Could immigration bill set off another backlash?

WASHINGTON (AP) ? As a Senate committee prepares to begin voting this week on far-reaching immigration legislation, advocates are watching warily to see whether opposition, thus far subdued, builds into the same kind of fierce backlash that shut down Congress' last attempt to remake the nation's immigration system.

That time around, in 2007, angry calls overwhelmed the Senate switchboard and lawmakers endured raging town hall meetings and threats from incensed constituents. The legislation ultimately collapsed on the Senate floor.

"I've been through this battle, and it's ugly," said former Sen. Trent Lott, R-Miss., who supported the bill. "My phones were jammed for three weeks and I got three death threats, one of which I turned over to the FBI. So it's rough business."

Supporters of the immigration bill, released last month by a group of four Republican and four Democratic senators, have been cautiously optimistic about their prospects because of factors including public support for giving citizenship to immigrants, a large and diverse coalition in support of the bill, and a growing sentiment among Republican leaders that immigration must be dealt with if they are to regain the backing of Hispanic voters. Backers have been working hard to build alliances and strategies aimed at avoiding the mistakes of 2007, when critics largely defined the bill and some supporters ended up turning against it.

Opponents acknowledge that supporters started out better organized and mobilized than last time around, and they also anticipate that outside groups pushing the legislation ? including efforts headed by New York Mayor Michael Bloomberg and Facebook founder Mark Zuckerberg ? will outspend them. Supporters include large and influential groups including the U.S. Chamber of Commerce, AFL-CIO and the Catholic Church, while opponents include lesser-known think tanks or advocacy organizations such as NumbersUSA, the Federation for American Immigration Reform and the Center for Immigration Studies. Both sides have already begun running ads.

But critics also have important grass-roots influence, including from talk radio hosts who were instrumental in defeating the bill in 2007, and opponents argue that as the public absorbs the content of the legislation, the tide will turn against it. They say that there are already signs that it's happening. Although conservative commentators on Fox News Channel and elsewhere have been more muted so far than in 2007, some talk radio hosts including Mark Levin and Rush Limbaugh have begun to voice deep unease about the bill despite the efforts of its conservative standard bearer, Sen. Marco Rubio, R-Fla., to sell the legislation to them and other conservative opinion leaders.

"The supporters promoted the bill aggressively before anybody saw the language, and certain Republicans and conservative voices sort of held their fire, but that's beginning to change," said Sen. Jeff Sessions, R-Ala., who was a leading voice in the Senate against the bill in 2007 and is reprising that role this time around, making floor speeches, issuing press releases and holding briefing calls with reporters to argue that the bill would unlock a much larger volume of immigration into the U.S. than advertised, to the detriment of U.S. workers and jobs.

"It's going to be like that mackerel in the sunshine ? the longer it's out there the worse it smells," Sessions said.

The bill would aim to boost border security, fix legal immigration and worker programs, require all employers to check their workers' legal status and offer eventual citizenship to the estimated 11 million immigrants already living in the country illegally.

Joyce Kaufman, a host on a Florida radio station, WFTL, said that opposition to the bill was soft at first but grows daily.

"Yes, we believe this is amnesty," Kaufman said. "Citizen activists are outraged."

Lott said that supporters of the legislation still haven't come up with an argument as concise and effective as that one word ? "amnesty" ? from opponents. He said he's spoken with Rubio, among others, to make clear that supporters of the bill need to hone their arguments.

"Last time our explanation was three paragraphs. Theirs was a word," Lott said. When that happens, he said, "You're dead."

The Democratic-led Senate, where the Judiciary Committee takes up the bill on Thursday, is already going to be a tough challenge. But if the bill does pass the Senate, opponents are betting it gets stopped in the Republican-led House. A bipartisan group of House lawmakers has been promising for months to release their own bill mirroring elements of the Senate legislation but taking a tougher tack. So far they haven't delivered.

Meanwhile, to the dismay of immigration advocates, the chairman of the House Judiciary Committee has announced plans to move forward with individual, single-issue immigration bills, rejecting the comprehensive approach in the Senate that's backed by President Barack Obama, who's made immigration legislation a top second-term priority. The legislation was also a priority in 2007 for then-President George W. Bush, but he was unsuccessful in persuading Republican lawmakers to get behind the bill, and Democrats who at the time controlled Congress were divided, too.

In the 2007 debate, a turning point came when the conservative Heritage Foundation released a report saying that the legislation would cost taxpayers $2.6 trillion, including benefits to immigrants and other expenditures. Although the analysis was disputed it carried weight with GOP lawmakers. Now under the leadership of former Sen. Jim DeMint, R-S.C., another lead opponent of the legislation in 2007, Heritage is preparing to release an updated version of that report.

In a sign of how supporters of the bill are working hard not to repeat mistakes from the past, conservative groups that support the legislation have already sought to pre-empt the Heritage report, with the Cato Institute deriding it ahead of time as "fatally flawed," and Cato and others arguing that immigration reform would boost the economy by growing the labor market. Nonetheless officials with Heritage argue their report could have the same impact this time around as in 2007.

"There's been a lot of posturing, a lot of talk. We haven't really gotten to the heart of the debate yet," said Dan Holler, communications director for Heritage Action for America, the Heritage Foundation's activist arm. "We have the right policy, the numbers are going to be there, and the debate is going to shift. And no amount of ads will be able to shift it back."

___

Follow Erica Werner on Twitter: https://twitter.com/ericawerner

Source: http://news.yahoo.com/could-immigration-bill-set-off-another-backlash-074649827.html

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Scaling up gyroscopes: From navigation to measuring the Earth's rotation

Scaling up gyroscopes: From navigation to measuring the Earth's rotation [ Back to EurekAlert! ] Public release date: 6-May-2013
[ | E-mail | Share Share ]

Contact: Catherine Meyers
cmeyers@aip.org
301-209-3088
American Institute of Physics

Accurately sensing rotation is important to a variety of technologies, from today's smartphones to navigational instruments that help keep submarines, planes, and satellites on course. In a paper accepted for publication in the American Institute of Physics' journal Review of Scientific Instruments, researchers from the Technical University of Munich and New Zealand's University of Canterbury discuss what are called "large ring laser gyroscopes" that are six orders of magnitude more sensitive than gyroscopes commercially available. In part, the increased sensitivity comes from the scaled-up size the largest of these gyroscopes encloses an area of 834 square meters meaning these instruments are no longer compatible with navigation applications. In addition, a very involved series of corrections must be made when using these instruments to account for a variety of factors, including the gravitational attraction of the moon. According to the researchers, however, the progress in these devices has made possible entirely new applications in geodesy, geophysics, seismology, and testing theories in fundamental physics such as the effects of general relativity.

Ring laser gyroscopes rely on laser beams propagating in opposite directions along the same closed loop or "ring." The beams interfere with one another forming a stable pattern, but that pattern shifts in direct proportion to the rotation rate of the whole laser-ring system (called the "Sagnac effect"). Large ring laser gyroscopes are attached to the Earth's crust so that a shift in that pattern (seen as an observed beat note in an actively lasing device) is directly proportional to the rotation rate of the Earth. Perturbations in that rotation rate capture the momentum exchange between the atmosphere, hydrosphere, and lithosphere, and so large ring laser gyroscopes could be used to indirectly monitor the combined effects of variations in global air and water currents, for example. They may also be used both to supplement and improve calculations currently made with Very Long Baseline Interferometry (VLBI) techniques for measuring the orientation of the instantaneous rotation axis of the Earth and the length of day. Additionally, changes in the ring's orientation also shifts the beat note of the interferometer, making the large ring laser gyroscope useful for detecting tilts in the Earth's crust, which current seismometers cannot distinguish from horizontal acceleration.

###

Article: "Large Ring Lasers for Rotation Sensing" is accepted for publication in the journal Review of Scientific Instruments.

Link: http://rsi.aip.org/resource/1/rsinak/v84/i4/p041101_s1

Authors: Karl Ulrich Schreiber (1, 2), Jon-Paul R. Wells (2)

(1) Technical University of Munich (2) University of Canterbury


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Scaling up gyroscopes: From navigation to measuring the Earth's rotation [ Back to EurekAlert! ] Public release date: 6-May-2013
[ | E-mail | Share Share ]

Contact: Catherine Meyers
cmeyers@aip.org
301-209-3088
American Institute of Physics

Accurately sensing rotation is important to a variety of technologies, from today's smartphones to navigational instruments that help keep submarines, planes, and satellites on course. In a paper accepted for publication in the American Institute of Physics' journal Review of Scientific Instruments, researchers from the Technical University of Munich and New Zealand's University of Canterbury discuss what are called "large ring laser gyroscopes" that are six orders of magnitude more sensitive than gyroscopes commercially available. In part, the increased sensitivity comes from the scaled-up size the largest of these gyroscopes encloses an area of 834 square meters meaning these instruments are no longer compatible with navigation applications. In addition, a very involved series of corrections must be made when using these instruments to account for a variety of factors, including the gravitational attraction of the moon. According to the researchers, however, the progress in these devices has made possible entirely new applications in geodesy, geophysics, seismology, and testing theories in fundamental physics such as the effects of general relativity.

Ring laser gyroscopes rely on laser beams propagating in opposite directions along the same closed loop or "ring." The beams interfere with one another forming a stable pattern, but that pattern shifts in direct proportion to the rotation rate of the whole laser-ring system (called the "Sagnac effect"). Large ring laser gyroscopes are attached to the Earth's crust so that a shift in that pattern (seen as an observed beat note in an actively lasing device) is directly proportional to the rotation rate of the Earth. Perturbations in that rotation rate capture the momentum exchange between the atmosphere, hydrosphere, and lithosphere, and so large ring laser gyroscopes could be used to indirectly monitor the combined effects of variations in global air and water currents, for example. They may also be used both to supplement and improve calculations currently made with Very Long Baseline Interferometry (VLBI) techniques for measuring the orientation of the instantaneous rotation axis of the Earth and the length of day. Additionally, changes in the ring's orientation also shifts the beat note of the interferometer, making the large ring laser gyroscope useful for detecting tilts in the Earth's crust, which current seismometers cannot distinguish from horizontal acceleration.

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Article: "Large Ring Lasers for Rotation Sensing" is accepted for publication in the journal Review of Scientific Instruments.

Link: http://rsi.aip.org/resource/1/rsinak/v84/i4/p041101_s1

Authors: Karl Ulrich Schreiber (1, 2), Jon-Paul R. Wells (2)

(1) Technical University of Munich (2) University of Canterbury


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Source: http://www.eurekalert.org/pub_releases/2013-05/aiop-sug050613.php

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