Sunday, March 31, 2013

AP PHOTOS: Easter celebrations around the world

Pope Francis blesses a man as he leads the Easter vigil service in St. Peter's Basilica, at the Vatican Saturday, March 30, 2013. Pope Francis is celebrating a trimmed back Easter Vigil service after having reached out to Muslims and women during a Holy Week in which he has begun to put his mark on the Catholic Church. Francis processed into a darkened and silent St. Peter's Basilica at the start of the Saturday service, which recalls the period between Christ's crucifixion on Good Friday and resurrection on Easter Sunday. (AP Photo/Alessandra Tarantino)

Pope Francis blesses a man as he leads the Easter vigil service in St. Peter's Basilica, at the Vatican Saturday, March 30, 2013. Pope Francis is celebrating a trimmed back Easter Vigil service after having reached out to Muslims and women during a Holy Week in which he has begun to put his mark on the Catholic Church. Francis processed into a darkened and silent St. Peter's Basilica at the start of the Saturday service, which recalls the period between Christ's crucifixion on Good Friday and resurrection on Easter Sunday. (AP Photo/Alessandra Tarantino)

Pope Francis leaves after celebrating the Easter vigil service in St. Peter's Basilica, at the Vatican Saturday, March 30, 2013. Pope Francis celebrated a trimmed back Easter Vigil service after having reached out to Muslims and women during a Holy Week in which he has begun to put his mark on the Catholic Church. Francis processed into a darkened and silent St. Peter's Basilica at the start of the Saturday service, which recalls the period between Christ's crucifixion on Good Friday and resurrection on Easter Sunday. (AP Photo/Alessandra Tarantino)

Pope Francis leaves after celebrating the Easter vigil service in St. Peter's Basilica, at the Vatican Saturday, March 30, 2013. Pope Francis celebrated a trimmed back Easter Vigil service after having reached out to Muslims and women during a Holy Week in which he has begun to put his mark on the Catholic Church. Francis processed into a darkened and silent St. Peter's Basilica at the start of the Saturday service, which recalls the period between Christ's crucifixion on Good Friday and resurrection on Easter Sunday. (AP Photo/Alessandra Tarantino)

Cardinal Audrys Juozas Backis bless during the Easter vigil mass at the Cathedral-Basilica in Vilnius, Lithuania, Saturday, March 30, 2013. (AP Photo/Mindaugas Kulbis)

Penitents of the "Las Siete Palabras" brotherhood take part in the procession of "La Soledad" during Holy Week in Madrid, Spain, Saturday, March 30, 2013. Hundreds of processions take place throughout Spain during the Easter Holy Week. (AP Photo/Andres Kudacki)

In his Easter Vigil homily at St. Peter's Basilica, Pope Francis kept his message simple and tied to the liturgical readings. "Let the risen Jesus enter your life, welcome him as a friend, with trust: he is life!" Just a few hours after the vigil ends, Francis on Sunday will celebrate his first Easter Mass as pontiff and deliver his "Urbi et Orbi" speech, Latin for "To the city and the world."

Here are scenes from Easter celebrations at the Vatican and across the world.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/3d281c11a96b4ad082fe88aa0db04305/Article_2013-03-30-Easter-Photo%20Gallery/id-62edbb13ed854dc28d219765f763c4c1

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Texas district attorney, wife found dead at home

File- This Jan. 31, 2013 file photo shows David Byrnes, Sheriff of Kaufman County, right, bowing his head as Mike McLelland, District Attorney of Kaufman County answers questions at a news conference at the Kaufman Law Enforcement Center in Kaufman, Texas. McLelland and his wife where found dead in their home Saturday March 30, 2013. Authorities are investigating. (AP Photo/The Dallas Morning News, David Woo, File )

File- This Jan. 31, 2013 file photo shows David Byrnes, Sheriff of Kaufman County, right, bowing his head as Mike McLelland, District Attorney of Kaufman County answers questions at a news conference at the Kaufman Law Enforcement Center in Kaufman, Texas. McLelland and his wife where found dead in their home Saturday March 30, 2013. Authorities are investigating. (AP Photo/The Dallas Morning News, David Woo, File )

(AP) ? A Texas prosecutor and his wife were found killed in their house two months after one of his assistants was gunned down near their office, authorities said.

Investigators found the bodies of Kaufman County District Attorney Mike McLelland and his wife, Cynthia, on Saturday, said Kaufman County sheriff's Lt. Justin Lewis. Police, FBI agents, Texas Rangers and deputies were part of the investigation.

Assistant district attorney Mark Hasse was shot to death in a parking lot a block from his office on Jan. 31.

Lewis declined to say how the couple died or whether authorities believe their deaths are linked to Hasse's. He wouldn't provide further details.

Kaufman Police Chief Chris Aulbaugh told The Dallas Morning News that the McLellands had been shot in their home and that although investigators didn't know if their deaths and Hasse's were related, they couldn't discount it.

"It is a shock," Aulbaugh told the paper. "It was a shock with Mark Hasse, and now you can just imagine the double shock and until we know what happened, I really can't confirm that it's related but you always have to assume until it's proven otherwise."

Sam Rosander, who lives in the same unincorporated area of Kaufman County as the McLellands, told The Associated Press that sheriff's deputies were parked in the district attorney's driveway for about a month after Hasse was killed.

Aulbaugh said recently that the FBI was checking to see if Hasse's killing could be related to the March 19 killing of Colorado Department of Corrections head Tom Clements, who was gunned down after answering the doorbell at his home. He said it's routine for authorities to look for possible links when there are similarities between two deaths.

Evan Spencer Ebel, a former Colorado inmate and white supremacist who authorities believe killed Clements and a pizza deliveryman two days earlier, was killed in a March 21 shootout with Texas deputies about 100 miles from Kaufman.

Hasse was chief of the organized crime unit when he was an assistant prosecutor in Dallas County in the 1980s, and he handled similar cases in Kaufman County, 33 miles southeast of Dallas.

McLelland had said Hasse was one of 12 attorneys on his staff, all of whom handle hundreds of cases at a time.

"Anything anybody can think of, we're looking through," McLelland said after the assistant prosecutor was killed.

In recent years, Hasse played major roles in Kaufman County's most high-profile cases, including one in which a justice of the peace was convicted on theft and burglary charges and another in which a man was convicted of killing his former girlfriend and her 10-year-old daughter.

McLelland graduated from the University of Texas before a 23-year career in the Army, according to the website for the district attorney's office. He later earned his law degree from the Texas Wesleyan School of Law.

He and his wife have two daughters and three sons. One son is a police officer in Dallas.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/3d281c11a96b4ad082fe88aa0db04305/Article_2013-03-31-District%20Attorney%20Dead-Texas/id-c11e74fa62304b9b961fce6bb746cd16

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Saturday, March 30, 2013

Cell reprogramming during liver regeneration

Friday, March 29, 2013

During embryonic development, animals generate many different types of cells, each with a distinct function and identity.

"Although the identities of these cells remain stable under normal conditions, some cells can be persuaded to take on new identities, through reprogramming," says Ben Stanger, MD, PhD, assistant professor of Medicine in the Division of Gastroenterology at the Perelman School of Medicine, University of Pennsylvania.

Researchers have been able to reprogram cells experimentally, but few have shown that cells can change their identities under normal physiological conditions in the body, particularly in mammals.

In the cover article of this month's issue of Genes and Development, Stanger, PhD candidate Kilangsungla Yanger, Yiwei Zong, PhD, and their colleagues, did just that in the liver of a mouse. Stanger is also an investigator in the Abramson Family Cancer Research Institute and the Department of Cell and Developmental Biology.

The adult liver contains two major cell types ? hepatocytes and biliary cells ? that differ dramatically in appearance and function. Hepatocytes are the main cell type in the liver, where they synthesize proteins and other macromolecules, and detoxify toxic substances. Biliary cells, on the other hand, line the bile ducts, which carry bile from the liver to the small intestine to help digest fats.

Using a sensitive method to tag and track how cells develop and differentiate, the researchers found that conditional expression of an activated Notch1 gene converted hepatocytes into biliary cells. Notch is an important receptor for relaying signals to tell cells how to develop.

What's more, after the researchers injured liver cells with a variety of toxins to stimulate wound healing, they found that over two to three weeks hepatocytes activated a biliary cell program on their own, acquiring the shape and function of biliary cells. These changes were dependent on the activation of endogenous Notch signaling.

"This is direct evidence that cells can be converted from one mature cell type to another in a live animal, as part of a normal response to injury," says Stanger. "We think that augmenting pre-existing cell reprogramming relationships may be another way to engineer cells for the treatment of diseases in which there are not enough bile ducts, such as cholestasis."

###

University of Pennsylvania School of Medicine: http://www.uphs.upenn.edu/news/

Thanks to University of Pennsylvania School of Medicine for this article.

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Source: http://www.labspaces.net/127525/Cell_reprogramming_during_liver_regeneration

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Razer begins shipping Edge units to those who pre-ordered this month

Razer begins shipping Edge units to those who preordered this month

Back when the Razer Edge pre-orders kicked off, on March 1st, the company wasn't quite clear as to when exactly the device would commence shipping to early adopters, only going as far as saying it would be later that very month. Well, the good news is today Razer took to its own Facebook page to announce that its new-era gaming PC is now on its way to folks who put in a pre-order "from the March batch." Meanwhile, Razer's hoping other gamers will also shell out the hefty amount of $999-plus for its novel piece of hardware, urging potential buyers on the social network to snag a unit (or two) before they go out of stock -- just don't expect to get a keyboard dock with your order, as the previously reported Q3 availability for this add-on remains intact. Above all, however, it's a great thing to see that what was once just a project, is now getting ready to arrive at consumers' doorsteps.

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Source: Razer (Facebook)

Source: http://www.engadget.com/2013/03/29/razer-edge-now-shipping/

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Cleaner gas rule would mean higher price at pump

FILE - In this July 10, 2012 file photo, Suzanne Meredith, of Walpole, Mass., gases up her car at a Gulf station in Brookline, Mass. Reducing sulfur in gasoline and tightening emissions standards on cars beginning in 2017, as the Obama administration is proposing, would come with costs as well as rewards. (AP Photo/Steven Senne, File)

FILE - In this July 10, 2012 file photo, Suzanne Meredith, of Walpole, Mass., gases up her car at a Gulf station in Brookline, Mass. Reducing sulfur in gasoline and tightening emissions standards on cars beginning in 2017, as the Obama administration is proposing, would come with costs as well as rewards. (AP Photo/Steven Senne, File)

(AP) ? The Obama administration's newest anti-pollution plan would ping American drivers where they wince the most: at the gas pump. That makes arguments weighing the cost against the health benefits politically potent.

The proposal to reduce sulfur in gasoline and tighten auto emission standards, released Friday, would raise gasoline prices by less than a penny per gallon, the Environmental Protection Agency says. But the oil industry points to its own study putting the cost between 6 and 9 cents a gallon.

The EPA also said its proposal would add about $130 to the price of new vehicles, beginning in 2025.

The administration says the costs to consumers are worth the payoff: billions of dollars in health benefits from reductions in smog- and soot-forming pollution.

The agency predicts $7 in health benefits for every dollar spent to implement the new rules. The agency must hold public hearings before finalizing the rules. It plans for them to take effect in 2017.

The proposal was praised by environmentalists and health advocates, as well as automakers who say it will help the U.S. catch up with the cleaner fuels used in other nations. California already uses the sulfur standard.

EPA Acting Administrator Bob Perciasepe said the proposal is designed to "protect the environment and public health in an affordable and practical way."

Opponents say gasoline prices are stubbornly high already and Americans shouldn't have to pay more. The oil industry, Republicans and some Democrats had urged the EPA to hold off on proposing the tighter regulations.

"With $4 a gallon gas the norm in many parts of the country, we cannot afford policies that knowingly raise gas prices," House Energy and Commerce Chairman Fred Upton said Friday. Instead, the Obama administration should work to increase energy supplies by approving the Keystone XL oil pipeline from Canada and other projects, said Upton, R-Mich.

Rep. Ed Whitfield, R-Ky., who is chairman of the energy and power subcommittee, called the sulfur rule "another example of an overzealous EPA" and said lawmakers would give it a hard look.

Environmentalists hailed the proposal as potentially the most significant in President Barack Obama's second term.

The so-called Tier 3 standards would reduce sulfur in gasoline by more than 60 percent and reduce nitrogen oxides by 80 percent. It would make it easier for states to comply with health-based standards for the main ingredient in smog and soot. And the regulation would allow automakers to sell the same vehicles in all 50 states.

The Obama administration already has moved to clean up motor vehicles by adopting rules that will double fuel efficiency and putting in place the first standards to reduce the pollution from cars and trucks blamed for global warming.

"Together, these standards represent the largest step in our nation's history toward reducing harmful emissions from the vehicles we drive every day," said Michelle Robinson, director of the clean vehicles program of the Union of Concerned Scientists, an environmental group for scientists.

Robinson said the rules would reduce asthma, respiratory problems and premature death.

"We know of no other air pollution control strategy that can achieve such substantial, cost-effective and immediate emission reductions," said Bill Becker, executive director of the National Association of Clean Air Agencies. Becker said the pollution reduction would be equal to taking 33 million cars off the road.

But the head of American Fuel and Petrochemical Manufacturers, Charles Drevna, questioned the motives behind the agency's regulation, since refining companies already have spent $10 billion to reduce sulfur by 90 percent. The additional cuts, while smaller, will cost just as much, Drevna said.

"I haven't seen an EPA rule on fuels that has come out since 1995 that hasn't said it would cost only a penny or two more," Drevna said.

A study commissioned by the American Petroleum Institute estimated that lowering the sulfur in gasoline would add 6 cents to 9 cents a gallon to refiners' manufacturing costs, an increase that likely would be passed on to consumers at the pump. The EPA estimate of less than 1 cent is also an additional manufacturing cost and likely to be passed on.

___

Associated Press writer Connie Cass contributed to this report.

___

Follow Dina Cappiello on Twitter: https://twitter.com/dinacappiello

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/f70471f764144b2fab526d39972d37b3/Article_2013-03-29-EPA-Cleaner%20Gasoline/id-e37c8d169b664df3b6b3861ee769abde

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Friday, March 29, 2013

Lawmakers rush to catch up on gay marriage

FILE - In this May 11, 2010 file photo, Kay Hagan, D-N.C. speaks at a news conference on Capitol Hill in Washington. For years, American opinion on gay marriage has been shifting. Now Washington is tripping over itself trying to catch up. In less than two weeks, seven sitting senators _ all from moderate or Republican-leaning states _ announced their support, dropping one by one like dominos. Taken together, their proclamations reflected a profound change in the American political calculus: For the first time, elected officials from traditionally conservative states are starting to feel it's safer to back gay marriage than risk being the last to join the cause. (AP Photo/Harry Hamburg, File)

FILE - In this May 11, 2010 file photo, Kay Hagan, D-N.C. speaks at a news conference on Capitol Hill in Washington. For years, American opinion on gay marriage has been shifting. Now Washington is tripping over itself trying to catch up. In less than two weeks, seven sitting senators _ all from moderate or Republican-leaning states _ announced their support, dropping one by one like dominos. Taken together, their proclamations reflected a profound change in the American political calculus: For the first time, elected officials from traditionally conservative states are starting to feel it's safer to back gay marriage than risk being the last to join the cause. (AP Photo/Harry Hamburg, File)

FILE - In this Nov. 6, 2012 file photo, Sen. Claire McCaskill, D-Mo. is seen in St. Louis. For years, American opinion on gay marriage has been shifting. Now Washington is tripping over itself trying to catch up. In less than two weeks, seven sitting senators _ all from moderate or Republican-leaning states _ announced their support, dropping one by one like dominos. Taken together, their proclamations reflected a profound change in the American political calculus: For the first time, elected officials from traditionally conservative states are starting to feel it's safer to back gay marriage than risk being the last to join the cause. (AP Photo/Jeff Roberson. File)

FILE - In this March 28, 2012 file photo, Sen. Mark Begich, D-Alaska speaks on Capitol Hill in Washington. For years, American opinion on gay marriage has been shifting. Now Washington is tripping over itself trying to catch up. In less than two weeks, seven sitting senators _ all from moderate or Republican-leaning states _ announced their support, dropping one by one like dominos. Taken together, their proclamations reflected a profound change in the American political calculus: For the first time, elected officials from traditionally conservative states are starting to feel it's safer to back gay marriage than risk being the last to join the cause. (AP Photo/Jacquelyn Martin, File)

FILE - In this Sept. 17, 2012 file photo, Sen. Jon Tester, D-Mont. speaks in Billings, Mont. For years, American opinion on gay marriage has been shifting. Now Washington is tripping over itself trying to catch up. In less than two weeks, seven sitting senators _ all from moderate or Republican-leaning states _ announced their support, dropping one by one like dominos. Taken together, their proclamations reflected a profound change in the American political calculus: For the first time, elected officials from traditionally conservative states are starting to feel it's safer to back gay marriage than risk being the last to join the cause. (AP Photo/Matt Gouras, File)

FILE - In this March 21, 2013 file photo, Sen. Rob Portman, R-Ohio is seen on Capitol Hill in Washington. For years, American opinion on gay marriage has been shifting. Now Washington is tripping over itself trying to catch up. In less than two weeks, seven sitting senators _ all from moderate or Republican-leaning states _ announced their support, dropping one by one like dominos. Taken together, their proclamations reflected a profound change in the American political calculus: For the first time, elected officials from traditionally conservative states are starting to feel it's safer to back gay marriage than risk being the last to join the cause. (AP Photo/J. Scott Applewhite, File)

(AP) ? For years, American opinion on gay marriage has been shifting. Now lawmakers are in a mad dash to catch up.

In less than two weeks, seven senators ? all from moderate or Republican-leaning states ? announced their support, dropping one by one like dominos. Taken together, their proclamations reflected a profound change in the American political calculus: For the first time, elected officials from traditionally conservative states are starting to feel it's safer to back gay marriage than risk being the last to join the cause.

"As far as I can tell, political leaders are falling all over themselves to endorse your side of the case," Chief Justice John Roberts told lawyers urging the Supreme Court on Wednesday to strike down a law barring legally married gay couples from receiving federal benefits or recognition.

It was the second of two landmark gay marriage cases the justices heard this week, the high court's first major examination of gay rights in a decade. But the focus on the court cases ? replete with colorful, camera-ready protests outside the court building ? obscured the sudden emergence of a critical mass across the street in the Capitol as one by one, senators took to Facebook or quietly issued a statement to say that they, too, now support gay marriage.

For some Democrats, like Missouri Sen. Claire McCaskill and Montana Sen. Jon Tester, the reversal would have been almost unfathomable just a few months ago as they fought for re-election. The potential risks were even greater for other Democrats like North Carolina Sen. Kay Hagan and Alaska Sen. Mark Begich, already top GOP targets when they face voters next year in states that President Barack Obama lost in November. After all, it was less than a year ago that voters in Hagan's state approved a ban on gay marriage.

Those four Democrats and two others ? Mark Warner of Virginia and Jay Rockefeller of West Virginia ? were swept up in a shifting tide that began to take shape last year, when Obama, in the heat of his re-election campaign, became the first sitting president to endorse gay marriage. Former Secretary of State Hillary Rodham Clinton, a potential contender in the next presidential election, followed suit in mid-March. As support among party leaders builds, rank-and-file Democrats appear wary of being perceived as hold-outs in what both parties are increasingly describing as a civil-rights issue.

"They're reflecting what they're seeing in the polls ? except the most extreme of the Republican base," former New Jersey Gov. Christine Todd Whitman, a Republican who supports gay marriage, said in an interview. "From a purely political perspective, if you want to be a leader of the future, you look at the next generation. They are overwhelmingly in favor of this."

Reince Priebus, the chairman of the Republican Party, cautioned in a USA Today interview that the GOP should not "act like Old Testament heretics."

Among Republicans, whose party platform opposes gay marriage, the shift in position has mostly been limited to former lawmakers and prominent strategists. Still, a distinct change in tone was palpable this month when Ohio Sen. Rob Portman, a Republican whom presidential candidate Mitt Romney vetted last year as a potential running mate, declared his support, citing a personal conversion stemming from his son coming out to him as gay.

Rather than blast Portman for flouting party dogma or failing an ideological litmus test, Republican leaders shrugged, indicating that even if Republicans, as a party, aren't prepared back gay marriage, they won't hold it against those in their ranks who do.

In the Republican-controlled House, where most members come from lopsided districts heavily skewed to one party or the other, GOP leaders are not wavering publicly from their staunch opposition. In fact, when the Obama administration stopped defending the Defense of Marriage Act in court, it was House Republicans who took up the mantle. Democrats said Thursday that Republicans have spent as much as $3 million in taxpayer funds to defend the law, now before the Supreme Court.

"It's like immigration. The party realizes they are on the losing side of some of these issues," said former Rep. Jim Kolbe, an Arizona Republican. Kolbe came out as gay in 1996 while in office and will mark another milestone in May when he and his longtime partner get married in Washington.

"They want to make the shift, but you have got to do it in a politic and strategic way," Kolbe said. "It's a matter of how and when you take down one flag and run up the other."

Kolbe and Whitman joined dozens of other prominent Republicans in signing a friend-of-the-court brief urging the Supreme Court to strike down the law barring federal recognition of gay marriages. But with House Speaker John Boehner, R-Ohio, still defending the law and social conservative groups vowing payback for those who abandon it, prospects are slim that Congress will move any time soon to repeal it on its own.

"It's sort of a bandwagon effect among the cultural elite," said Peter Sprigg of the Family Research Council, which opposes gay marriage. "Some of these politicians who have changed their position, those who live in more conservative states, may pay for that shift with a defeat in their next election."

If public opinion continues to move in the direction it has been for the last 15 years, what's true for the next election may not be true just a few years down the line ? even for Republicans.

When Gallup first asked in polls about gay marriages, in 1996, just 27 percent felt they should be valid. That figure climbed to 44 percent two years ago, and reached a majority by last November, when 53 percent said gay marriages should be recognized. Among independents, a key barometer for politicians, support has jumped 23 points to 55 percent, including a six-point gain since 2010.

Even among Republicans, support has grown by 14 percentage points since 1996, although there's been no significant movement among Republicans since 2010, when 28 percent backed legal marriage.

"A lot of Republicans have come to the conclusion we can't live one life in private but advocate another life in public," said Republican strategist Alex Castellanos. "We all know families who are loving parents of the same gender who are raising great kids."

___

AP Director of Polling Jennifer Agiesta contributed to this report.

___

Reach Josh Lederman on Twitter at http://twitter.com/joshledermanAP

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/3d281c11a96b4ad082fe88aa0db04305/Article_2013-03-28-US-Gay-Marriage/id-48cd515be6ea4b479bd0ac8ee5f66052

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Same-sex marriage is not the last frontier (Powerlineblog)

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Seth Rogen, Zoe Saldana And More To Present At Movie Awards

While the fact Rebel Wilson is hosting the 2013 MTV Movie Awards this year is enough to get us tuning in, the list of presenters that was announced today is a wonderful added bonus. Everyone from Zach Efron to the cast of "Star Trek Into Darkness" will be handing out Golden Popcorns, so it's time [...]

Source: http://moviesblog.mtv.com/2013/03/29/movie-awards-presenters/

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Prosecutors not ready to accept Holmes plea

DENVER (AP) ? Prosecutors said Thursday they are not ready to accept an offer from Colorado theater shooting suspect James Holmes to plead guilty in exchange for avoiding the death penalty.

In a court filing, prosecutors criticized defense attorneys for publicizing Holmes' offer to plead guilty, calling it a ploy meant to draw the public and the judge into what should be private plea negotiations.

They say the defense has "steadfastly and repeatedly" refused to provide key details they need to consider a plea.

No agreement exists, and one "is extremely unlikely based on the present information available to the prosecution."

Legal experts say the case pivots on whether Holmes was legally insane when he opened fire in a packed theater in Aurora, killing 12 people.

Holmes' attorneys disclosed in a court filing Wednesday that their client has offered to plead guilty to killing 12 people at a midnight screening of the latest Batman movie, but only if he wouldn't be executed.

Prosecutors say defense attorneys are trying to pull the judge into a possible plea agreement, and criticized comments to the media, including The Associated Press, from Doug Wilson, who heads the state public defenders' office.

Wilson didn't immediately return a call Thursday.

George Brauchler, the current Arapahoe County DA, is scheduled to announce Monday whether he will seek the death penalty for Holmes. Brauchler hasn't publicly revealed his plans. He has refused repeatedly to comment on the case, citing the gag order and his spokesman didn't immediately return a call Thursday evening.

Pierce O'Farrill, who was shot three times, said he would welcome an agreement that would imprison Holmes for life. The years of court struggles ahead would likely be an emotional ordeal for victims, he said.

"I don't see his death bringing me peace," O'Farrill said. "To me, my prayer for him was that he would spend the rest of his life in prison and hopefully, in all those years he has left, he could find God and ask for forgiveness himself."

A plea bargain would bring finality to the case fairly early so victims and their families can avoid the prolonged trauma of not knowing what will happen, said Dan Recht, a past president of the Colorado Criminal Defense Bar.

"The defense, by making this public pleading, is reaching out to the victims' families," he said.

Source: http://news.yahoo.com/prosecutors-not-ready-agree-holmes-plea-230908116.html

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Need new employees? Hire the ones you let go ? Business ...

by Jessica Miller-Merrell

woman holding hired signThe economy is like a pendulum, and when it starts to swing back toward prosperity?as it appears it has started to do?your organization might miss some of those talented employees you had to let go during the recession.

Why not hire them back? You can source, hire and train new employees, but there?s something lost?something more than productivity?when you let a long-time staff member go. It?s the experience, insight and industry knowledge that walked out with every pink slip you issued.

Adding to your troubles, talented people who survived the layoffs and stuck by your side through rough times may now be recruiting targets for other companies that are in the same boat as you.

So you need to add talent. Solution: Hire some former employees.

The boomerang boost

First thing to do: Create an employee rehire policy. Keep it simple. Start by determining why an employee left the organization. Ask if the person?s former manager would consider rehiring him or her. Tip: Build this question into the exit process for every employee so it will be easy to find qualified rehire candidates in the future.

Rehires, often referred to as a boomerang employees, may come back to your organization in the same or a different role. The great benefit to the organization: They already understand its culture, know what is expected and are familiar with the work environment.

Don?t limit your consideration of rehires to employees let go in a layoff.?Other candidates are those who left for what seemed like greener pastures or people who retired and then realized they weren?t quite ready for that.

Coach?s call-back

Inviting them back could immediately boost your company?s productivity and talent. I call this the Coach Snyder Effect.

Bill Snyder became head football coach of the Kansas State Wildcats in 1989. What Snyder did for the Wildcats is nothing short of legendary, and his list of awards and accomplishments through the years are amazing. But in 2005, Snyder retired and Kansas State tried to move on.

It didn?t. In fact,?the team took a nosedive. Soon, calls for Snyder to return from retirement started churning. And in 2009, the popular coach returned to the sidelines?a rare return in college football. Kansas State football has made a quick return to glory. Not a shabby performance for any coach, let alone for one who had already retired.

Former Starbucks CEO Howard Schultz has a similar story. He returned to lead the coffee chain in early 2008 when it was struggling. Upon his return, he made tough management calls that resulted in store closures, layoffs and menu changes. This boomerang made an impact, as Starbucks sales have continued to soar since his return.

Another successful boomerang is Jay Leno, who retired as host of ?The Tonight Show? in 2009, making room for replacement Conan O?Brien. But ratings suffered, and Leno reclaimed his old position to positive reviews a year later.

Stay in touch with alums

Should you bring back your organization?s lost employees? Before you start sifting through past-employee files:

  • Establish a line of communication. Keep in touch with your organization?s ?alumni.??Consider setting up a LinkedIn alumni network or publishing an e-newsletter that goes out periodically to former employees.
  • Demonstrate value. Offer something of value to your alumni community to engage former employees and to spark a conversation between them and their former managers. Examples: a free r?sum?-writing class or webinar.
  • Build a rehire database. Like a talent pipeline within your organization, your rehire database can include ratings, information and insights from previous managers. Build a ?most-wanted? list and target your ?must hires.?

__________________________________________________________________________________________

Jessica Miller-Merrell is an Internet television host, author, speaker and HR professional who specializes in recruiting, training and social media. She manages the HR blog ?Blogging4Jobs? and is author of Tweet This! Twitter for Business. Her company, Xceptional HR, is located in Moore, Okla. Contact her at (405) 293-2564.

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Thursday, March 28, 2013

Live Updates: Day 2 of Gay Marriage at the Supreme Court

Refresh here throughout the day for color from inside and outside the Supreme Court as justices hear arguments on gay marriage.

All times are E.T.

Today is the second day of arguments at the Supreme Court over gay marriage. The justices will consider the second separate case.

Yesterday, the Justices considered whether the California gay marriage ban enacted by Proposition 8 is constitutional.

Read what went on both inside and outside the courtroom from yesterday's live updates here.

Today, lawmakers will hear arguments about the federal Defense of Marriage Act, which was passed with broad bipartisan support in 1996 and signed into law by President Bill Clinton. DOMA defines marriage as between one man and a woman and denies federal benefits to same-sex couples who are legally married in their states.

But as states begin to OK gay marriage - nine currently allow it - same-sex married couples will expect the same federal benefits that straight couples get.

Back to top

10:45 a.m. - New Jersey Politicians for Gay Marriage

Sen. Frank Lautenberg changed his avatar on Twitter to show support for same-sex marriage.

All legal marriages deserve federal recognition & the benefits that come with it. #DOMA must go! #SCOTUS #UnitedforMarriage

? Frank R. Lautenberg (@FrankLautenberg) March 27, 2013

Newark Mayor Cory Booker also changed his avatar and tweeted back at followers who had condemned his decision.

"God's law" has been used 2 subjugate women, blacks & even justify slavery. RT @ yung_boss Is the law of the land more sacred over God's law?

? Cory Booker (@CoryBooker) March 27, 2013

New Jersey is not one of the nine states where gay marriage is legal. In February of 2012 Republican Gov. Chris Christie vetoed a bill that would have legalized it.

Back to top

10:39 a.m. - Pro-Gay Rights Crowd Trumps Marriage Equality Protesters

ABC's Matthew Larotonda reports from outside the Supreme Court:

The plaza in front of the Court is nearly as packed as it was yesterday, albeit at lower density. Overflow is starting to form across the street in front of the Capitol. Once again gay rights demonstrators dwarf their opposition. A handful of traditional marriage conservatives can be found among the crowd, which numbers at least a thousand.

Marcos Dominguez-German is one of those in the majority and was one of the first demonstrators to appear early in the morning.

Dominguez-German became a U.S. citizen after seeking asylum for "persecution" of his homosexuality in his native Brazil. He is legally married in Massachusetts.

"If I didn't have that asylum and just married my husband I wouldn't be able to stay here," he said. "I wouldn't be able to stay here because the federal government doesn't recognize same sex marriages."

Clutching his two small dogs and a gay pride flag, he said the government's failure to recognize all gay married couples amounted to "taxation without representation."

There is yet a third faction here, separated by a noticeable air gap: About a half dozen members of the Westboro Baptist Church.

"America is doomed" says one of their signs, and "God hates fags."

But not far off from their corner is another man holding a tote bag with a peculiar text emblazoned on the side: "God hates bags," it reads.

Back to top

9:41 a.m. - Rob Reiner: Meathead could help get Archie Bunker to back gay marriage

Back to top

9:14 a.m. - Inside the Supreme Court Today

ABC's Ariane de Vogue reports:

There will be opinions released at 10 a.m. and arguments will follow soon after. Arguments will be one hour and 50 minutes. Transcripts and audio will be released around noon.

At issue: Does a federal law that denies benefits to same sex couples who are legally married in their state violate the Constitution? When 83-year-old Edie Windsor's wife died, Windsor sought a refund of federal estate taxes that is available to married couples. She was denied under DOMA which defines marriage as between one man and one woman.

The fact that the case reached the Supreme Court reflects years of strategy on behalf of major gay rights groups. Initially, they didn't support the Prop 8 challenge because they felt the Justices might be more receptive to the DOMA case. It allows the Court to take a more gradual step on a divisive issue.

Read more on the Defense of Marriage Act here.

Jurisdictional issues up first Vicki C. Jackson, Court appointed lawyer - 20 minutes Deputy Solicitor General Sri Srinivasan - 15 minutes Paul D. Clement - 15 minutes Bipartisan Legal Advisory Group - 15 minutes

Merits: Paul D. Clement, BLAG - 30 minutes Solicitor General Donald B. Verrilli, Jr - 15 minutes Roberta A. Kaplan for Edie Windsor - 15 minutes

Back to top

9:00 a.m. - Westboro Baptist Church Protests Hearing

ABC's Matthew Larotonda and John Parkinson report the Westboro Baptist Church has more protesters out at today's hearing than they did yesterday.

Yesterday pro-marriage equality protesters countered the Church's group with their own signs and music, dancing right alongside the Westboro picketers.

Today they incorporated the group into their signs.

Love this guy's sign! Take that, Westboro Baptist Church! twitter.com/chrisjohnson82?

? Chris Johnson (@chrisjohnson82) March 27, 2013

Back to top

8:13 a.m. - Brands Come Out for Marriage Equality

Individual Facebook users weren't the only ones posting the red equal-sign to show their support for same-sex marriage. Yesterday Bud Light posted a photo on their Facebook feed, forming the equal-sign on a red background with two cans of their beer.

ABC's Jilian Fama will report throughout the day about what other brands are picking sides in these court cases. If you see some to include, tweet them to @ABCPolitics.

Back to top

7:15 a.m. - What's That Red Equal-Sign on Facebook All About?

ABC's Dan Milano reports:

They're popping up on Facebook news feeds around the nation, but without much explanation. Just what are those red equal-sign Facebook profile pictures all about? Look no further than the Human Rights Campaign, an organization in support of gay marriage that is running a particularly successful social media initiative as the Supreme Court discusses the issue over the next two days.

In a Facebook post yesterday, the HRC asked gay marriage supporters to "paint the town red," wearing red in their wardrobe as well on their Facebook pages, changing profile photos over to the HRC "=" logo. The idea has even caught the eyes of Congress, with 13 members showcasing the symbol, according to Ryan Beckwith.

Read more from Milano here.

Back to top

7:11 a.m. - Meet the People with the Most at Stake

The Supreme Court hears oral arguments in two landmark cases concerning gay marriage this week. Justices will consider the legal merit and standing of challenges to California's Proposition 8 law banning gay marriage and to the federal Defense of Marriage Act (DOMA) that defines marriage as being between one man and one woman.

With lawyers and justices taking the stage now, it's easy to forget that everyday people have a stake in this fight.

Read the stories of some of the people who hope the court will decide in their favor here.

Back to top

7:01 a.m. - DOMA: Explained

ABC's Chris Good and Ariane de Vogue explain what today's case is all about:

Since 1996, the federal government has defined marriage as between a man and a woman.

That could change if proponents of gay marriage succeed before the Supreme Court.

For the second straight day, the nation's highest court will hear arguments in a high-profile case on gay marriage, one of the hottest social issues in America.

Today, they will hear arguments in a challenge to the Defense of Marriage Act, the 1996 law signed by President Bill Clinton that defined marriage as heterosexual and denied federal benefits to gay couples, who are legally married in their state.

Between the two cases, the Supreme Court could issue a landmark ruling on gay marriage by the end of June.

The DOMA challenge was brought by Edie Windsor, an 83-year-old woman from New York who married Thea Clara Spyer in 2007. After Spyer's death in 2009, Windsor was denied an exemption of federal estate taxes.

Read more on DOMA from Good and de Vogue here.

Back to top

Also Read

Source: http://news.yahoo.com/live-updates-day-2-gay-marriage-supreme-court-111019716--abc-news-politics.html

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Amanda Knox Murder Acquittal Ruling Overturned (VIDEOS)

Amanda Knox Murder Acquittal Ruling Overturned (VIDEOS)

Amanda Knox acquittal overturnedAmanda Knox has been ordered to stand a re-trial over the 2007 killing of her British roommate Meredith Kercher in Perugia. Knox said the news that the Italian court had overturned the acquittals of her and ex-boyfriend Raffaele Sollecito for the murder was “unfair” and “painful”. The family of the victim, Meredith Kercher, has admitted ...

Amanda Knox Murder Acquittal Ruling Overturned (VIDEOS) Stupid Celebrities Gossip Stupid Celebrities Gossip News

Source: http://stupidcelebrities.net/2013/03/amanda-knox-murder-acquittal-ruling-overturned-videos/

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$25 Raspberry Pi Model A Now Shipping In Asia, After Landing In Europe Last Month - Heading Stateside Soon

raspberry Pi model AThe $25 Model A Raspberry Pi has gone on sale in Asia, following its launch in Europe last month -- suggesting a U.S. landing can't be too far off for the most affordable of the Pi Foundation's two low-cost microcomputers. One of the Foundation's distributors, RS Components, said today it is now shipping the Model A Pi in Asia.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/jZ6-HZqHxGw/

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Quantum computing? Physicists' new technique for cooling molecules may be a stepping stone to quantum computing

Mar. 27, 2013 ? The next generation of computers promises far greater power and faster processing speeds than today's silicon-based based machines. These "quantum computers" -- so called because they would harness the unique quantum mechanical properties of atomic particles -- could draw their computing power from a collection of super-cooled molecules.

But chilling molecules to a fraction of a degree above absolute zero, the temperature at which they can be manipulated to store and transmit data, has proven to be a difficult challenge for scientists.

Now, UCLA physicists have pioneered a new technique that combines two traditional atomic cooling technologies and brings normally springy molecules to a frozen standstill. Their research is published March 28 in the journal Nature.

"Scientists have been trying to cool molecules for a decade and have succeeded with only a few special molecules," said Eric Hudson, a UCLA assistant professor of physics and the paper's senior author. "Our technique is a completely different approach to the problem -- it is a lot easier to implement than the other techniques and should work with hundreds of different molecules."

Previous attempts to create ultracold molecules were only effective with one or two specific kinds. Creating a method that can be used with many different molecules would be a major step forward because it is difficult to say which materials might be used in quantum computers or other future applications, Hudson said.

By immersing charged barium chloride molecules in an ultracold cloud of calcium atoms, Hudson and his colleagues are able to prevent most of the molecules from vibrating and rotating. Halting the molecules is a necessary hurdle to overcome before they can be used to store information like a traditional computer does.

"The goal is to build a computer that doesn't work with zeros and ones, but with quantum mechanical objects," Hudson said. "A quantum computer could crack any code created by a classical computer and transmit information perfectly securely."

Hudson's experiment makes molecules extremely cold under highly controlled conditions to reveal the quantum mechanical properties that are hidden under normal circumstances. At room temperature, molecules rocket around, bouncing into each other and exchanging energy. Any information a scientist attempted to store in such a chaotic system would quickly become gibberish.

"We isolate these molecular systems in a vacuum, effectively levitating them in the middle of nothing," Hudson said. "This removes them from the rest of the world that wants to make them classical."

The quantum mechanical world of subatomic particles deviates from the classical world that we observe with the naked eye because according to quantum mechanics, electrons can only exist at specific energy levels. In a quantum computer made of a collection of single atoms, information might be stored by boosting some atomic electrons to higher energy levels while leaving others at lower energy states. However, these atomic energy states are not stable enough to reliably preserve data, Hudson said.

"One of the challenges with atoms is that their energy states are very easily influenced by the outside world," Hudson said. "You make this beautiful quantum state, but then the outside world tries to destroy that information."

Instead of saving data in easily disrupted atomic energy states, a more robust way to store information is in the rotational energy states of molecules, Hudson said. A spinning molecule in the lowest energy rotational state could represent a binary one, while a stationary molecule could represent a binary zero.

Despite applications for quantum computing and other industries, cooling molecules to extremely low temperatures has proved a challenge. Even the simplest molecule composed of only two atoms is a far more complex system than a single atom. Each molecule vibrates and rotates like a miniature whirling slinky, and all of that movement must be stilled so that the molecule can lose energy and cool down.

A new cooling technique

To solve the ultracold molecule conundrum, Hudson and his group first created a floating cloud of calcium atoms corralled by incoming laser beams from all directions. This magneto-optical trap keeps the atoms stationary as it cools them to nearly absolute zero. They then use specialized rods with high, oscillating voltages as part of an ion trap to confine a cloud of positively-charged barium chloride molecules within the ultracold ball of calcium atoms to complete the cooling process.

For the vibrating, energetic molecules to lose heat, they must spend a significant amount of time in contact with the surrounding ultracold atom cloud. Hudson and his colleagues used barium chloride ions, molecules missing one electron, because charged molecules are easier to trap and cool than their neutral counterparts. The use of molecular ions is an essential innovation because previous efforts have demonstrated that neutral molecules ricochet off ultracold atoms without sufficient heat transfer.

"When a molecular ion and a neutral atom get close together they get in tight and bang off each other a bunch before the ion goes away," Hudson said. "When they collide like that it is very easy for the energy in one to go to the other."

While magneto-optical and ion traps are not new to the world of molecular physics, Hudson and his colleagues became the first group to combine these methods to create a cloud of ultracold molecules. This paper is the result of over four years of work spent designing, building, and testing their experiment.

"These two different technologies earned Nobel prizes for the scientists who developed them, but there wasn't really a body of knowledge about how to put these two procedures together," Hudson said.

The research is funded by the Army Research Office and the National Science Foundation.

Other co-authors include former UCLA postdoctoral scholar Wade Rellergert; UCLA graduate students Scott Sullivan, Steven Schowalter and Kuang Chen; and Temple University physics professor Svetlana Kotochigova.

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Story Source:

The above story is reprinted from materials provided by University of California - Los Angeles. The original article was written by Kim DeRose.

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


Journal Reference:

  1. Wade G. Rellergert, Scott T. Sullivan, Steven J. Schowalter, Svetlana Kotochigova, Kuang Chen, Eric R. Hudson. Evidence for sympathetic vibrational cooling of translationally cold molecules. Nature, 2013; 495 (7442): 490 DOI: 10.1038/nature11937

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

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/matter_energy/physics/~3/SYUzrzW3LIc/130327144129.htm

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Wednesday, March 27, 2013

New type of solar structure cools buildings in full sunlight

New type of solar structure cools buildings in full sunlight [ Back to EurekAlert! ] Public release date: 27-Mar-2013
[ | E-mail | Share Share ]

Contact: Andrew Myers
admyers@stanford.edu
650-736-2245
Stanford School of Engineering

Stanford engineers develop new passive solar radiator of nanostructured photonic materials that cools even in full sunlight

Homes and buildings chilled without air conditioners. Car interiors that don't heat up in the summer sun. Tapping the frigid expanses of outer space to cool the planet. Science fiction, you say? Well, maybe not any more.

A team of researchers at Stanford has designed an entirely new form of cooling structure that cools even when the sun is shining. Such a structure could vastly improve the daylight cooling of buildings, cars and other structures by reflecting sunlight back into the chilly vacuum of space. Their paper describing the device was published March 5 in Nano Letters.

"People usually see space as a source of heat from the sun, but away from the sun outer space is really a cold, cold place," explained Shanhui Fan, professor of electrical engineering and the paper's senior author. "We've developed a new type of structure that reflects the vast majority of sunlight, while at the same time it sends heat into that coldness, which cools manmade structures even in the day time."

The trick, from an engineering standpoint, is two-fold. First, the reflector has to reflect as much of the sunlight as possible. Poor reflectors absorb too much sunlight, heating up in the process and defeating the purpose of cooling.

The second challenge is that the structure must efficiently radiate heat back into space. Thus, the structure must emit thermal radiation very efficiently within a specific wavelength range in which the atmosphere is nearly transparent. Outside this range, Earth's atmosphere simply reflects the light back down. Most people are familiar with this phenomenon. It's better known as the greenhouse effectthe cause of global climate change.

Two goals in one

The new structure accomplishes both goals. It is an effective a broadband mirror for solar lightit reflects most of the sunlight. It also emits thermal radiation very efficiently within the crucial wavelength range needed to escape Earth's atmosphere.

Radiative cooling at nighttime has been studied extensively as a mitigation strategy for climate change, yet peak demand for cooling occurs in the daytime.

"No one had yet been able to surmount the challenges of daytime radiative coolingof cooling when the sun is shining," said Eden Rephaeli, a doctoral candidate in Fan's lab and a co-first-author of the paper. "It's a big hurdle."

The Stanford team has succeeded where others have come up short by turning to nanostructured photonic materials. These materials can be engineered to enhance or suppress light reflection in certain wavelengths.

"We've taken a very different approach compared to previous efforts in this field," said Aaswath Raman, a doctoral candidate in Fan's lab and a co-first-author of the paper. "We combine the thermal emitter and solar reflector into one device, making it both higher performance and much more robust and practically relevant. In particular, we're very excited because this design makes viable both industrial-scale and off-grid applications."

Using engineered nanophotonic materials the team was able to strongly suppress how much heat-inducing sunlight the panel absorbs, while it radiates heat very efficiently in the key frequency range necessary to escape Earth's atmosphere. The material is made of quartz and silicon carbide, both very weak absorbers of sunlight.

Net cooling power

The new device is capable of achieving a net cooling power in excess of 100 watts per square meter. By comparison, today's standard 10-percent-efficient solar panels generate the about the same amount of power. That means Fan's radiative cooling panels could theoretically be substituted on rooftops where existing solar panels feed electricity to air conditioning systems needed to cool the building.

To put it a different way, a typical one-story, single-family house with just 10 percent of its roof covered by radiative cooling panels could offset 35 percent its entire air conditioning needs during the hottest hours of the summer.

Radiative cooling has another profound advantage over all other cooling strategy such as air-conditioner. It is a passive technology. It requires no energy. It has no moving parts. It is easy to maintain. You put it on the roof or the sides of buildings and it starts working immediately.

A changing vision of cooling

Beyond the commercial implications, Fan and his collaborators foresee a broad potential social impact. Much of the human population on Earth lives in sun-drenched regions huddled around the equator. Electrical demand to drive air conditioners is skyrocketing in these places, presenting an economic and an environmental challenge. These areas tend to be poor and the power necessary to drive cooling usually means fossil-fuel power plants that compound the greenhouse gas problem.

"In addition to these regions, we can foresee applications for radiative cooling in off-the-grid areas of the developing world where air conditioning is not even possible at this time. There are large numbers of people who could benefit from such systems," Fan said.

###

This article was written by Andrew Myers, associate director of communications for the Stanford University School of Engineering.


[ 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.


New type of solar structure cools buildings in full sunlight [ Back to EurekAlert! ] Public release date: 27-Mar-2013
[ | E-mail | Share Share ]

Contact: Andrew Myers
admyers@stanford.edu
650-736-2245
Stanford School of Engineering

Stanford engineers develop new passive solar radiator of nanostructured photonic materials that cools even in full sunlight

Homes and buildings chilled without air conditioners. Car interiors that don't heat up in the summer sun. Tapping the frigid expanses of outer space to cool the planet. Science fiction, you say? Well, maybe not any more.

A team of researchers at Stanford has designed an entirely new form of cooling structure that cools even when the sun is shining. Such a structure could vastly improve the daylight cooling of buildings, cars and other structures by reflecting sunlight back into the chilly vacuum of space. Their paper describing the device was published March 5 in Nano Letters.

"People usually see space as a source of heat from the sun, but away from the sun outer space is really a cold, cold place," explained Shanhui Fan, professor of electrical engineering and the paper's senior author. "We've developed a new type of structure that reflects the vast majority of sunlight, while at the same time it sends heat into that coldness, which cools manmade structures even in the day time."

The trick, from an engineering standpoint, is two-fold. First, the reflector has to reflect as much of the sunlight as possible. Poor reflectors absorb too much sunlight, heating up in the process and defeating the purpose of cooling.

The second challenge is that the structure must efficiently radiate heat back into space. Thus, the structure must emit thermal radiation very efficiently within a specific wavelength range in which the atmosphere is nearly transparent. Outside this range, Earth's atmosphere simply reflects the light back down. Most people are familiar with this phenomenon. It's better known as the greenhouse effectthe cause of global climate change.

Two goals in one

The new structure accomplishes both goals. It is an effective a broadband mirror for solar lightit reflects most of the sunlight. It also emits thermal radiation very efficiently within the crucial wavelength range needed to escape Earth's atmosphere.

Radiative cooling at nighttime has been studied extensively as a mitigation strategy for climate change, yet peak demand for cooling occurs in the daytime.

"No one had yet been able to surmount the challenges of daytime radiative coolingof cooling when the sun is shining," said Eden Rephaeli, a doctoral candidate in Fan's lab and a co-first-author of the paper. "It's a big hurdle."

The Stanford team has succeeded where others have come up short by turning to nanostructured photonic materials. These materials can be engineered to enhance or suppress light reflection in certain wavelengths.

"We've taken a very different approach compared to previous efforts in this field," said Aaswath Raman, a doctoral candidate in Fan's lab and a co-first-author of the paper. "We combine the thermal emitter and solar reflector into one device, making it both higher performance and much more robust and practically relevant. In particular, we're very excited because this design makes viable both industrial-scale and off-grid applications."

Using engineered nanophotonic materials the team was able to strongly suppress how much heat-inducing sunlight the panel absorbs, while it radiates heat very efficiently in the key frequency range necessary to escape Earth's atmosphere. The material is made of quartz and silicon carbide, both very weak absorbers of sunlight.

Net cooling power

The new device is capable of achieving a net cooling power in excess of 100 watts per square meter. By comparison, today's standard 10-percent-efficient solar panels generate the about the same amount of power. That means Fan's radiative cooling panels could theoretically be substituted on rooftops where existing solar panels feed electricity to air conditioning systems needed to cool the building.

To put it a different way, a typical one-story, single-family house with just 10 percent of its roof covered by radiative cooling panels could offset 35 percent its entire air conditioning needs during the hottest hours of the summer.

Radiative cooling has another profound advantage over all other cooling strategy such as air-conditioner. It is a passive technology. It requires no energy. It has no moving parts. It is easy to maintain. You put it on the roof or the sides of buildings and it starts working immediately.

A changing vision of cooling

Beyond the commercial implications, Fan and his collaborators foresee a broad potential social impact. Much of the human population on Earth lives in sun-drenched regions huddled around the equator. Electrical demand to drive air conditioners is skyrocketing in these places, presenting an economic and an environmental challenge. These areas tend to be poor and the power necessary to drive cooling usually means fossil-fuel power plants that compound the greenhouse gas problem.

"In addition to these regions, we can foresee applications for radiative cooling in off-the-grid areas of the developing world where air conditioning is not even possible at this time. There are large numbers of people who could benefit from such systems," Fan said.

###

This article was written by Andrew Myers, associate director of communications for the Stanford University School of Engineering.


[ 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/2013-03/ssoe-nto032713.php

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Tuesday, March 26, 2013

C. African Republic hospitals looted after coup

In this Monday, March 25, 2013 photo, rebel soldiers stand guard outside a hotel where Seleka rebel alliance leader Michel Djotodia was due to make a declaration, in Bangui, Central African Republic. Djotodia, whose fighters seized the capital of Central African Republic over the weekend, announced late Monday that he has dissolved the country's constitution and will stay in power for three years, according to excerpts from the broadcast carried on French radio. The Seleka rebel leader justified his coup d'etat, saying ousted President Francois Bozize had veered into dictatorship during his 10 years in power.(AP Photo)

In this Monday, March 25, 2013 photo, rebel soldiers stand guard outside a hotel where Seleka rebel alliance leader Michel Djotodia was due to make a declaration, in Bangui, Central African Republic. Djotodia, whose fighters seized the capital of Central African Republic over the weekend, announced late Monday that he has dissolved the country's constitution and will stay in power for three years, according to excerpts from the broadcast carried on French radio. The Seleka rebel leader justified his coup d'etat, saying ousted President Francois Bozize had veered into dictatorship during his 10 years in power.(AP Photo)

Map shows Central African Republic where rebels have overthrown their president

FILE - In this Jan. 7, 2013 file photo, Central African Republic rebel leader Michel Djotodia arrives ahead of planned peace talks with Central African Republic's government, in Libreville, Gabon. Rebels overthrew Central African Republic's president of a decade on Sunday, March 24, after invading the capital. Seleka rebel group leader Djotodia told French radio station RFI Monday, March 25, that he is the de facto head of state and should be addressed as the president. (AP Photo/Joel Bouopda Tatou, File)

In this photo taken on Friday March 22, 2013 and provided on Monday March 25, 2013 by the French Army Communications Audio visual office, French soldiers arrive at Bangui airport, Central Africa Republic. Rebels overthrew Central African Republic's president of a decade on Sunday, seizing the presidential palace and declaring that the desperately poor country has "opened a new page in its history." The country's president fled the capital, while extra French troops moved to secure the airport, officials said. (AP Photo/Elise Foucaud, ECPAD)

In this photo taken on Friday March 22, 2013 and provided on Monday March 25, 2013 by the French Army Communications Audio visual office, French soldiers arrive at Bangui airport, Central Africa Republic. Rebels overthrew Central African Republic's president of a decade on Sunday, seizing the presidential palace and declaring that the desperately poor country has "opened a new page in its history." The country's president fled the capital, while extra French troops moved to secure the airport, officials said. (AP Photo/Elises Foucaud, ECPAD)

(AP) ? Aid groups and the international community on Tuesday condemned widespread looting in Central African Republic's capital, saying that even hospitals had been robbed in the aftermath of a weekend coup that ousted the president of a decade.

Efforts to restore order to Bangui, a city of 700,000, came as a rebel leader declared himself the new president and announced he would stay in power for three years.

Continuing violence in Central African Republic was preventing critically wounded patients from getting the help they needed, said the French medical aid group, Medecins Sans Frontieres, or Doctors Without Borders.

"MSF condemns the looting and robberies of our facilities and reminds all parties that medical personnel must be respected and protected and must be granted all available help in the performance of their duties," said Serge St. Louis, MSF head of mission in Bangui.

U.N. spokesman Martin Nesirky also said Tuesday that "widespread looting is continuing, including of one pediatric hospital."

More than 1,000 armed rebels from the alliance known as Seleka attacked the capital on Saturday, forcing longtime President Francois Bozize into exile in neighboring Cameroon. The fierce fighting left at least 13 South African soldiers dead and an untold number of civilian casualties.

It was the latest political turmoil to destabilize Central African Republic, a country where leaders since independence from France in 1960 have come to power or been ousted in a series of coups and rebellions.

In Washington, State Department spokesman Patrick Ventrell sharply criticized the "illegitimate seizure of power."

"We strongly condemn these actions," Ventrell told reporters. "The Seleka leadership must account for its trail of destruction."

On Monday, rebel leader Michel Djotodia made his first public declaration since overthrowing Bozize, stating that he planned to stay in power until 2016.

The leader of the rebel coalition justified the coup by saying that Bozize had veered into dictatorship during his 10 years in power.

"Through us, it was the entire population of Central African Republic that rose up as a single man against the president," Djotodia said, according to Radio France Internationale.

Meanwhile, French forces protecting Bangui's main airport opened fire on three cars that were speeding toward a security checkpoint, said the French Defense Ministry.

The cars, carrying Indian and Chadian citizens, continued despite warning shots. Two Indian citizens were killed, and the wounded Indian and Chadian passengers were taken for medical care, the defense ministry said in the statement Monday.

France is investigating the shooting, the statement said.

The rebels' advance started last week when they pushed past Damara, a town 75 kilometers (47 miles) to the northeast. Damara had marked the line of control drawn by regional forces in January, following an accord signed in Libreville, the capital of neighboring Gabon.

The rebels broke that accord last week, claiming that Bozize's government had failed to make good on a series of promises, including sending back the South African troops guarding the capital.

The South African troops came under an onslaught of fire from the Seleka rebels, who shot and killed 13 South African soldiers over the weekend, in their fight to take the capital.

Seleka is a loose coalition of fighters, many of whom fought in previous rebellions. They joined forces last fall, beginning their advance toward the capital in December.

The Seleka fighters benefited from the growing dissatisfaction with Bozize, who came to power in 2003, at the helm of a column of a different rebel group which also invaded the capital and toppled the former leader.

Bozize is accused of growing cronyism, and in the last election in 2011, around 20 of Bozize's family members and close associates, including former mistresses, won posts in the government, according to Louisa Lombard, a postdoctoral fellow in geography at the University of California, Berkeley.

"There was the sense that governing was being carried out by a tighter and tighter circle of people around Bozize," says Lombard, who has been traveling to Central African Republic for the past 10 years for research.

"And although all sorts of technocratic procedures were in place to make the government more inclusive, it was in fact less and less inclusive. The more technocratic people got sidelined. Those who held positions of power did not have much education, much background in their chosen field. There was a disregard for any kind of merit in governing."

Lombard cautions, however, that the Seleka coalition is very loosely held together. Already on Monday, a different rebel leader, 26-year-old Nelson N'Djadder who is based in Paris, said that he does not recognize Djotodia as their new president.

"Seleka is a very heterogeneous group. That is something we noticed since the beginning, when it first emerged," said Lombard. "Holding it together will be a big problem."

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Callimachi reported from Dakar, Senegal. Associated Press writers Bradley Klapper in Washington and Lori Hinnant in Paris contributed to this report.

___

Rukmini Callimachi can be reached at www.twitter.com/rcallimachi

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/cae69a7523db45408eeb2b3a98c0c9c5/Article_2013-03-26-Central%20African%20Republic-Rebels/id-bec57ece4ac74fd2b958b382387e8118

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