Tuesday, April 30, 2013

Dell Vostro 5460 Touted To Be Thinnest And Lightest 14-Inch ...

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Dell Vostro 5460 Touted To Be Thinnest And Lightest 14 Inch Notebook To DateDell has announced that their most recent addition to the world of ultra-portable notebooks would come in the form of the 14? Dell Vostro 5460. What makes the Dell Vostro 5460 different from the rest would be it carrying the torch of being the thinnest and lightest 14-inch Vostro notebook to date. In fact, it measures a mere 18.3mm while tipping the scales at just 1.54kg, making it deliver far more juice in a supremely portable form factor. Some of the hardware specifications of this notebook include an expansive 14-inch high definition widescreen LED (HD WLED) TrueLife display at 1366 x 768 pixels resolution, integrated stereo speakers and a dedicated subwoofer that is powered by HD audio with Waves MaxxAudio 4.0, an integrated 720HD 1-megapixel camera with microphones, and of course, a full-sized Chiclet keyboard that makes typing out those long reports a cinch.

You will find all of these hardware specifications come encased within a sleek brushed-aluminum chassis in graphite silver or fire red, where a 3-cell integrated Lithium Ion battery would deliver up to 5 hours of battery life. Connectivity options include 802.11 b/g/n Wi-Fi, Bluetooth 4.0 and a RJ-45 Ethernet port, where those are accompanied by a trio of USB 3.0 ports, an SD memory card reader and a HDMI port. There will be a 500GB hard drive that is complemented by a 32GB SSD, and you can pick up the Vostro 5460 in two flavors ? both running on Windows 8, with one being the vanilla version while the other would carry the Ultrabook moniker.

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Source: http://www.ubergizmo.com/2013/04/dell-vostro-5460-touted-to-be-thinnest-and-lightest-14-inch-notebook-to-date/

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Plant gases help curb global warming, finds study

Plants respond to warming temperatures by emitting vapors that help reflect sunlight, a team of scientists have discovered.

By Eoin O'Carroll,?Staff / April 29, 2013

An aerial view of Tongass National Forest near Ketchikan, Alaska. Tongass is the largest national forest in the United States.

Melanie Stetson Freeman / The Christian Science Monitor / File

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It's well known that plants can help mitigate global warming, by absorbing carbon dioxide and trapping it, via photosynthesis, in things like leaves, stalks, and branches.

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But it turns out that plants help cool the planet in another way, by releasing tiny particles into the atmosphere that help reflect sunlight back into space.?

Yes, it's true: Plants pass gas. A new study published in the journal Nature Geoscience found that vapors emitted by plants scatter and absorb radiation from the sun, and that they help form cloud droplets that also reflect the sun's rays.?

"Everyone knows the scent of the forest," said study co-author Ari Asmi, in a press release from the University of Helsinki. "That scent is made up of these gases." ?

The scientists measured concentrations plant vapors and other aerosols at 11 different sites around the globe ? seven in Europe, two in North America, and the others in Siberia and South Africa ? and recorded the temperature. They found that, as temperatures increased, the plants emitted more vapors, effectively responding to the warming by increasing the cooling effect.

So does that mean we are good then? Do the global cooling emissions from plants offset the global warming emissions coming from a Chevy Camaro's tailpipe?

Not quite. The scientists found that the effect of the increased plant emissions counters only about 1 percent of global warming. ?This does not save us from climate warming,? said study co-author?Pauli Paasonen, in the press release.?

But the plant gasses still might cool things for you locally, especially if you live in a rural, forested area. The study found that, in places where there is little man-made soot in the air, the effect could counteract up to 30 percent of warming.

And this discovery has the potential to improve our understanding of how and why our climate is changing. Aerosols, that is, tiny solid or liquid particles that hang in the air, are one of the least understood aspects of our atmosphere. ?"Understanding this mechanism could help us reduce those uncertainties and make the models better,? said Paasonen.

Source: http://rss.csmonitor.com/~r/feeds/science/~3/WVWtj27aNl0/Plant-gases-help-curb-global-warming-finds-study

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Monday, April 29, 2013

Paul McCartney and Wings: Hi Hi Hi

This is a good song. No one is saying that you should listen to it while in any type of altered mental state whatsoever. It's just a good song. The Wings recorded it in 1972 and it got pretty popular, though the BBC was turned off by some of its lyrics. Paul apparently had this to say about their concerns:

The BBC got some of the words wrong. But I suppose it is a bit of a dirty song if sex is dirty and naughty. I was in a sensuous mood in Spain when I wrote it.

Okay people, you heard the man, time for a sensuous trip to Spain.

Source: http://gizmodo.com/5995492/paul-mccartney-and-wings-hi-hi-hi

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Johnny Depp & Amber Heard Romance Still On!

Johnny Depp & Amber Heard Romance Still On!

Johnny Depp & Amber Heard photosJohnny Depp and Amber Heard, who were rumored to have split after Amber went back to dating chicks, appear to still be dating after being spotted holding hands at a Rolling Stone show. The rumored couple attended the show at Hollywood?s Echoplex over the weekend, with the actor leading his girlfriend around backstage at the ...

Johnny Depp & Amber Heard Romance Still On! Stupid Celebrities Gossip Stupid Celebrities Gossip News

Source: http://stupidcelebrities.net/2013/04/johnny-depp-amber-heard-romance-still-on/

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Saturday, April 27, 2013

Militants kill Somali prosecutor, threaten more

MOGADISHU (Reuters) - Islamist militants killed Somalia's deputy chief prosecutor and will target more judiciary staff while the government tries to reform the courts, a militant spokesman said on Friday.

The al Shabaab rebel group, which is linked to al Qaeda, has foguht for six years to impose its strict interpretation of Islamic law, or sharia, on Somalia.

The shooting of Ahmed Sheikh Nur Maalin, Somalia's deputy national prosecutor, on Thursday followed a wave of suicide bombings and shootings earlier this month in which 30 people were killed.

"It was part of our operation against courts and their men," Sheikh Abdiasis Abu Musab, spokesman for al Shabaab's military operation, told Reuters. "We shall also kill the remaining one by one."

The attacks were launched at a time when security in Mogadishu had been improving after two decades of civil war.

The government believes strengthening the rule of law and reforming the judiciary is vital but al Shabaab is determined to prevent it.

Donor countries are working with Somalia's new government to reform the judiciary, the police and the army.

Britain will host an international conference in London on May 7 on ways to bolster security, impose the rule of law and rebuild the nation. So far there has been slow progress on all three areas.

(Reporting by Abdi Skeikh and Feisal Omar; Writing By Drazen Jorgic; Editing by Edmund Blair and Angus MacSwan)

Source: http://news.yahoo.com/militants-kill-somali-prosecutor-threaten-more-162823337.html

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Friday, April 26, 2013

Obama heading to Texas for Bush museum dedication, fundraising

By Steve Holland

WASHINGTON (Reuters) - President Barack Obama is headed to Texas to stand shoulder-to-shoulder with former President George W. Bush in what could serve as a powerful reminder of the ongoing struggle against terrorism in the aftermath of the September 11, 2001, attacks on the United States.

Obama is due to attend the dedication on Thursday of Bush's presidential library at Southern Methodist University, along with former presidents Bill Clinton, George H.W. Bush and Jimmy Carter and hundreds of Bush administration alumni.

While Democrat Obama and Republican Bush have deep political differences, they share a common belief that the United States must defend itself against violent extremism.

The September 11 attacks defined Bush's eight years in the White House and last week's Boston Marathon bombing handed Obama another challenge to homeland security.

"They failed because, as Americans, we refused to be terrorized," Obama said last week, referring to those who set off bombs near the marathon finish line. "They failed because we will not waver from the character and the compassion and the values that define us as a country."

Bush used similar language to rally Americans.

Certain issues require a common response regardless of political party, said David Yepsen, director of the Paul Simon Public Policy Center at the University of Southern Illinois.

"They may get to the office as a conservative or a liberal but there are real forces that move them to the pragmatic center on a variety of issues and national security is one of them," Simon said.

Obama is expected to begin his trip by headlining a $10,000-a-plate fundraising dinner on Wednesday evening for the Democratic National Committee at the Dallas home of major Democratic donor Naomi Aberly.

Obama has hosted a number of such fundraisers to help raise money for his party in the hope that Democrats can wrestle control of the House of Representatives from Republicans and add to the Democrats' Senate majority in 2014 midterm elections.

Without adding Democratic seats, Obama may find it difficult to overcome Republican opposition to many of the priorities of his second term, such as closing tax loopholes enjoyed mostly by the wealthy and stricter gun control.

Thursday's dedication of Bush's library and museum has put the 43rd U.S. president back in the limelight he has largely avoided since leaving office in January 2009.

At the time, the United States was laboring under the burden of two wars and a collapsed economy. Bush's approval rating at the time was 33 percent. A Washington Post-ABC poll this week put his approval rating at 47 percent, basically equal to Obama's.

The museum exhibits cover major points of Bush's presidency and offer visitors an opportunity to decide how they would have responded to those challenges.

A central features of the museum concerns the September 11 attacks on the United States.

Obama has found himself pursuing some of the same policies that Bush began, such using drones on military targets and trying to overhaul U.S. immigration laws.

Obama is expected to speak at the dedication along with the former presidents.

"Regardless of the times when they served and their political and policy differences, there is a commonality of experience that the president believes binds them together," said White House spokesman Jay Carney.

After visiting Bush in Dallas on Thursday, Obama is scheduled to attend a memorial service at Baylor University in Waco, Texas, for the 14 people killed when a fertilizer plant exploded last week in West, Texas.

(Reporting By Steve Holland; Editing by Karey Van Hall, Toni Reinhold)

Source: http://news.yahoo.com/obama-heading-texas-bush-museum-dedication-fundraising-195822863.html

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This Week in the Civil War (Providence Journal)

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Johnson's foot feels better before Game 3 vs Bulls

Brooklyn Nets guard Joe Johnson, left, tries to drive past Chicago Bulls forward Luol Deng in the first half of Game 2 of their first-round NBA basketball playoff series, Monday, April 22, 2013, in New York. (AP Photo/Kathy Willens)

Brooklyn Nets guard Joe Johnson, left, tries to drive past Chicago Bulls forward Luol Deng in the first half of Game 2 of their first-round NBA basketball playoff series, Monday, April 22, 2013, in New York. (AP Photo/Kathy Willens)

(AP) ? Brooklyn guard Joe Johnson's foot is feeling better, and that's about all he was willing to say about his status for Game 3 of the Nets' playoff series against the Chicago Bulls.

Johnson hurt his left foot in the first quarter of the Bulls' 90-82 win Monday. He remains a game-time decision with the series shifting to the United Center on Thursday night.

"I feel a little better than I did yesterday," Johnson said while sitting on the scorers' table before the Nets' shootaround.

Johnson was acquired in a trade with Atlanta last summer and averaged 16.3 points in his first season with the Nets. He had 17 points on 6-of-18 shooting in 39 minutes in Game 2.

Johnson's absence would leave Brooklyn without one of its most reliable scorers against the defensive-minded Bulls.

"We need Joe out there, you know," point guard Deron Williams said. "I mean, he's a big part of this team. Added scorer out there that we need on the floor, commands double teams when he's out there, so we need him, we need him healthy.

"That being said, we don't know how he's feeling."

Johnson missed several games during the regular season with a heel injury. He remained on the sideline at the start of the Nets' shootaround, and was unsure how much he would participate in the morning session.

"Honestly, I don't even know. I don't even know what the plan is," he said. "So I'm just going to go on the floor."

Interim coach P.J. Carlesimo declined to provide any details. Asked about the plan for Johnson for the day, Carlesimo responded: "We'll see if he can play. If he can play, he'll play."

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/347875155d53465d95cec892aeb06419/Article_2013-04-25-BKN-Nets-Johnson/id-3701f696f7b04f669795c99c88f2d86a

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Thursday, April 25, 2013

2nd Miss. man investigated in ricin case

Federal agents wearing hazmat suits inspect the grounds around the house owned by Everett Dutschke, in connection with the recent ricin attacks, as one of his dogs howls Tuesday, April 23, 2013 in Tupelo, Miss. No charges have been filed against Dutschke and he hasn?t been arrested. (AP Photo/Rogelio V. Solis)

Federal agents wearing hazmat suits inspect the grounds around the house owned by Everett Dutschke, in connection with the recent ricin attacks, as one of his dogs howls Tuesday, April 23, 2013 in Tupelo, Miss. No charges have been filed against Dutschke and he hasn?t been arrested. (AP Photo/Rogelio V. Solis)

A federal agent wearing a hazmat suit secures a container used during a search of the Tupelo, Miss., home of Everett Dutschke, Tuesday, April 23, 2013 in connection with the recent ricin attacks. No charges have been filed against Dutschke and he hasn?t been arrested. (AP Photo/Rogelio V. Solis)

Federal authorities wear hazmat suits as they search the home of Everett Dutschke, Tuesday, April 23, 2013 in Tupelo, Miss., in connection with the recent ricin attacks. No charges have been filed against Dutschke and he hasn?t been arrested. (AP Photo/Rogelio V. Solis)

Federal agents wearing hazardous material suits and breathing apparatus inspect the home and possessions in the West Hills Subdivision house of Paul Kevin Curtis in Corinth, Miss., Friday, April 19, 2013. Curtis is in custody under the suspicion of sending letters covered in ricin to the U.S. President Barack Obama and U.S. Sen. Roger Wicker, R-Miss. (AP Photo/Rogelio V. Solis)

Paul Kevin Curtis, right, who had been in custody under the suspicion of sending letters which tested positive for ricin to U.S. President Barack Obama and U.S. Sen. Roger Wicker, R-Miss., and his brother Jack Curtis walk to a press conference in Oxford, Miss. on Tuesday, April 23, 2013. The charges were dismissed without prejudice, which means they could be re-instated if prosecutors so choose. (AP Photo/Oxford Eagle, Bruce Newman)

TUPELO, Miss. (AP) ? A second Mississippi man investigated in connection to ricin-laced letters sent to the president and a U.S. senator said Wednesday that investigators "ripped" through his house during an hours-long search the previous day after charges were dropped against another man in the case.

No investigators appeared to be at the Tupelo home Wednesday morning, and Everett Dutschke said he'd gone to a friend's house to rest. Piles of items could be seen all over the floor through the window. The home was searched Tuesday by dozens of officials, some in hazmat suits, from early in the afternoon until about 11 p.m. CDT. Officials declined to comment on what they had found or on the next phase of the investigation.

At one point, two FBI agents and two members of the state's chemical response team left Dutschke's property and began combing through ditches, culverts and woods about a block away from his house in the neighborhood of single-family detached homes.

Dutschke (DUHST'-kee), who spoke with The Associated Press by telephone during the search, said his house was also searched last week. He said he and his wife had gone to a friend's Wednesday because they didn't feel safe at their home.

"They ripped everything out of the house," he said Wednesday morning, adding: "I haven't slept at all."

No charges have been filed against Dutschke and he hasn't been arrested. Both he and Paul Kevin Curtis, who had faced charges in the case, say they have no idea how to make the poisonous ricin and had nothing to do with sending the letters to President Barack Obama, U.S. Sen. Roger Wicker of Mississippi and Mississippi county judge Sadie Holland.

Curtis, a 45-year-old celebrity impersonator, has maintained his innocence since his arrest.

Referring to investigators' questions, Curtis said after he was released from custody Tuesday afternoon, "I thought they said rice and I said, 'I don't even eat rice.' ... I respect President Obama. I love my country and would never do anything to pose a threat to him or any other U.S. official."

A one-sentence document filed by federal prosecutors said charges against Curtis were dropped, but left open the possibility they could be reinstated if authorities found more to prove their case. Prosecutors were not immediately available for comment, but the document said the ongoing investigation had revealed new information. It did not elaborate.

Dutschke and Judge Holland know each other: In 2007, he lost his Republican bid for a seat in the Mississippi House of Representatives to Holland's son, Democratic state Rep. Steve Holland, who was the incumbent.

Steve Holland previously said that during a political rally in the small town of Verona in 2007, Dutschke gave a speech disparaging the Holland family, including him, his mother and his wife.

Holland said his mother, who spoke just after Dutschke at the rally, called him back on the stage and said, "You're not going to disparage me. Now, you apologize to me."

Holland said Dutschke returned to the stage and at Judge Holland's instruction, got down on his knees and apologized, but Dutschke disputed that Tuesday.

"That's just Steve Holland being Steve Holland," he said, adding that he did not get down on his knees and apologize for anything. "He's a bit grandiose about the way he describes things."

Since Curtis' arrest at his Corinth, Miss., home on April 17, his attorneys have said their client didn't do it and suggested he was framed. An FBI agent testified in court this week that no evidence of ricin was found in searches of Curtis' home.

The dismissal is the latest twist in a case that has been strange from the beginning and rattled the country during the same week as the Boston Marathon bombing and a fertilizer plant explosion in West, Texas.

Dutschke and Curtis are no strangers to each other. Dutschke said the two had a disagreement and the last contact they had was in 2010. Dutschke said he threatened to sue Curtis for saying he was a member of Mensa, a group for people with high IQs.

Hal Neilson, an attorney for Curtis, said the defense gave authorities a list of people who may have had a reason to hurt Curtis.

"Dutschke came up," he said. "They (prosecutors) took it and ran with it. I could not tell you if he's the man or he's not the man, but there was something there they wanted to look into."

An FBI intelligence bulletin obtained by the AP said the two ricin-laced letters addressed to Obama and Wicker said: "To see a wrong and not expose it, is to become a silent partner to its continuance." Both were signed, "I am KC and I approve this message."

Curtis was already well known to Wicker because he had written to the Republican senator and other officials. Curtis also wrote a novel called "Missing Pieces," about black-market body parts he claimed to have found while working at a hospital ? a claim the hospital says is untrue. Curtis posted similar language on his Facebook page and elsewhere. The documents indicate Curtis had been distrustful of the government for years. He told the AP on Tuesday that he realizes his writings made him an easy target.

Multiple online posts under the name Kevin Curtis on various websites that could be seen by anyone refer to the conspiracy he claimed to uncover when working at a local hospital from 1998 to 2000. In one post, Curtis said he sent letters to Wicker and other politicians. He signed off: "This is Kevin Curtis & I approve this message."

Christi McCoy, another attorney for Curtis, said she doesn't know what new information prosecutors have, but said the plot to frame her client was "very, very diabolical."

Curtis, dressed after his release Tuesday in a black suit, red shirt, necktie and sunglasses, said he met Dutschke in 2005 but that for some reason Dutschke "hated" and "stalked" him. "To this day I have no clue of why he hates me."

Ricin is derived from the castor plant that makes castor oil. There is no antidote and it is at its deadliest when inhaled. It can be aerosolized, released into the air and inhaled. The Homeland Security handbook says the amount of ricin that fits on the head of a pin is enough to kill an adult if properly prepared.

Dutschke said agents asked him about Curtis, whether Dutschke would take a lie-detector test and if he had ever bought castor beans, which can be used to make the potent poison.

"I'm a patriotic American. I don't have any grudges against anybody. I did not send the letters," Dutschke said.

After charges were dropped against Curtis, he said: "I'm a little shocked."

Tuesday's events began when the third day of a preliminary and detention hearing was canceled without officials explaining the change. Within two hours, Curtis had been released.

FBI Agent Brandon Grant said in court Monday that searches last week of Curtis' vehicle and house in Corinth, found no ricin, ingredients for the poison, or devices used to make it. A search of Curtis' computers found no evidence he researched making ricin. Authorities produced no other physical evidence at the hearings tying Curtis to the letters.

All the envelopes and stamps were self-adhesive, Grant said Monday, meaning they won't yield DNA evidence. One fingerprint was found on the letter sent to a Lee County judge, but the FBI doesn't know who it belongs to, Grant said.

The experience, Curtis said, has been a nightmare for his family. He has four children ? ages, 8, 16, 18 and 20. It also has made him reflect deeply on his life.

"I've become closer to God through all this, closer with my children and I've even had some strained relationships with some family and cousins and this has brought us closer as a family," he said.

___

Wagster Pettus reported from Jackson. Associated Press writers Holbrook Mohr in Oxford, Jack Elliott in Jackson, Miss., and Pete Yost in Washington contributed to this report.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/386c25518f464186bf7a2ac026580ce7/Article_2013-04-24-Suspicious%20Letters/id-f62bb29248f44b4f976cfd7eefa343ff

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The Applelicious Home Screen

Reader sky_n_sand wanted a new iOS theme that still had that Apple look and feel, so he made one himself with a new icon pack and UI elements.

Here's what you need to get this look on your device:

  • Lockscreen Clock Hide, available in Cydia, to hide the current lockscreen.
  • Libweather, available in Cydia, for the new lockscreen.
  • Winterboard
  • The Applelicious theme, available here.

Sky_n_sand describes how it works:

The lockscreen turns in your personal weather screen with time and date. It shows your current weather based on your GPS location. If the weather changes, the Apple changes. The icons and all other UI of the iphone are changed, giving you a new experience with your (dull) standard iPhone.

Do you have an awesome, tweaked-into-oblivion home or lock screen of your own that you'd like to share? Post it in the comments below, or on your own Kinja blog with the tag "home screen showcase" (no quotes). Be sure to include a description of how you made it so we can feature it as the next featured home screen.

Discover a new iPhone experience | sky_n_sand

Source: http://feeds.gawker.com/~r/lifehacker/full/~3/-N-3rh6MLmQ/the-applelicious-home-screen-478095214

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Wednesday, April 24, 2013

Storms flood streets, damage houses across SE La.

NEW ORLEANS (AP) ? A fast-moving line of intense thunderstorms has flooded streets, damaged houses and business and knocked out power to more than 30,000 people in southeast Louisiana.

No injuries were reported.

The New Orleans suburb if Kenner reported that a possible tornado damaged roofs and buildings and left numerous utility poles leaning. A building under construction was heavily damaged.

The utility corporation Entergy reported more than 32,000 customers without power around midday. Jefferson Parish had about 16,000 of those outages and New Orleans had more than 11,000. The total had been reduced to around 20,000 by mid-afternoon.

By early afternoon, the worst of the storms appeared to have moved out of heavily populated areas and into coastal marshes and waters.

Source: http://news.yahoo.com/storms-flood-streets-damage-houses-across-se-la-205831517.html

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Sequestration Flight Delays Not Hitting Airline ... - Yahoo! Finance

Starting Sunday the Federal Aviation Administration (FAA) was forced to cut spending by 10% as a result of forced sequestration cuts. According to Reuters the cuts have already resulted in delays of more than an hour in New York with more delays to come at other hub airports.

This sounds exactly like any other Monday in the last 20 years of air travel. Regardless, FAA authorities swear these delays are different and the direct result of the sequester.

From an investment perspective, the question is whether or not the scorching hot stocks of the major airlines can withstand a service slowdown, even it isn't their fault (this time). Yahoo! Finance senior columnist Mike Santoli says the sector could hit an air pocket if the delays cause business travelers to consider alternatives to flying.

"The story with the airline stocks is pricing power," Santoli says in the attached video. The industry has reduced capacity on travel routes and has seen massive merger activity. That makes for more crowded flights and fewer alternatives for travelers who don't want to share an armrest. Historically these stocks are "not a great buy and hold business," understates Santoli, suggesting a pullback in the sector should be expected.

Entering afternoon trading on Monday, the delays are shorter than expected and the stocks aren't getting hit. United Continental (UAL) is down less than 1% and Delta (DAL) is actually having a nice rally. Both stocks are up about 30% already in 2013, suggesting trimming some profits is in order with or without delays driving away demand.

The mess has to flower beyond what people were expecting for the delays to hit the sector in Santoli's estimates. Expectations for smooth, on-time travel are generally extremely low. Until it's possible to definitively distinguish between a sequestration-based delay and business as usual, it's unlikely FAA cutbacks are going to be a catalyst for the stocks in either direction.

Source: http://finance.yahoo.com/blogs/breakout/sequestration-flight-delays-not-hitting-airline-stocks-yet-182430221.html

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A check on tension

Monday, April 22, 2013

Ludwig researchers Arshad Desai and Christopher Campbell, a post-doctoral fellow in his laboratory, were conducting an experiment to parse the molecular details of cell division about three years ago, when they engineered a mutant yeast cell as a control that, in theory, had no chance of surviving. Apparently unaware of this, the mutant thrived.

Intrigued, Campbell and Desai began exploring how it had defied its predicted fate. As detailed in the current issue of Nature, what they discovered has overturned the prevailing model of how dividing cells ensure that each of their daughter cells emerge with equal numbers of chromosomes, which together package the genome. "Getting the right number of chromosomes into each cell is absolutely essential to sustaining life," explains Desai, PhD, a Ludwig member at the University of California, San Diego, "but it is also something that goes terribly wrong in cancer. The kinds of mistakes that occur when this process isn't functioning properly are seen in about 90% of cancers, and very frequently in advanced and drug-resistant tumors."

Campbell and Desai's study focused in particular on four interacting proteins known as the chromosomal passenger complex (CPC) that monitor the appropriate parceling out of chromosomes. When cells initiate division, each chromosome is made of two connected, identical sister chromatids?roughly resembling a pair of baguettes joined in the middle. As the process of cell division advances, long protein ropes known as microtubules that extend from opposite ends of the cell hook up to the chromosomes to yank each of the sister chromatids in opposite directions. The microtubules attach to the chromatids via an intricate disc-like structure called the kinetochore. When the protein ropes attach correctly to the sister chromatids, pulling at each from opposing sides, they generate tension on the chromosome. One of the four proteins of the CPC, Aurora B kinase, is an enzyme that monitors that tension. Aurora B is expressed at high levels in many cancers and has long been a target for the development of cancer therapies.

Aurora B is essentially a molecular detector. "If the chromosomes are not under tension," says Desai, "Aurora B forces the rope to release the kinetochore and try attaching over and over again, until they achieve that correct, tense attachment."

The question is how? Aurora B is ordinarily found between the two kinetochores in a region of the chromosome that links the sister chromatids, known as the centromere. The prevailing model held that the microtubule ropes would pull themselves, and the kinetochores, away from Aurora B's reach, so that it cannot force the microtubule ropes to detach from their captive chromosomes. In other words, the location of Aurora B between the two kinetochore discs was thought to be central to its role as a monitor of the requisite tension. "This matter was thought settled," says Desai.

Yet, as Campbell and Desai show through their experiments, yeast cells engineered to carry a mutant CPC that can't be targeted to the centromere survive quite vigorously. They demonstrate that in such cells Aurora B instead congregates on the microtubule ropes. There, it somehow still ensures that the required tension is achieved on chromosomes before they are parceled out to daughter cells.

How precisely it does this remains unclear. Campbell and Desai provide evidence that the clustering of Aurora B on microtubules might be sufficient to activate its function. At the same time, they hypothesize, appropriate tension on the chromosome may induce structural changes in Aurora B's targets that make them resistant to its enzymatic activity. Campbell and Desai are now conducting experiments to test these ideas.

###

Ludwig Institute for Cancer Research: http://www.licr.org

Thanks to Ludwig Institute for Cancer Research for this article.

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Tuesday, April 23, 2013

Humans Show Empathy for Robots

From R2-D2 in "Star Wars" to Furby, robots can generate surprisingly humanlike feelings. Watching a robot being abused or cuddled has a similar effect on people to seeing those things done to a human, new research shows.

Humans are increasingly exposed to robots in their daily lives, but little is known about how these lifelike machines influence human emotions.

Feeling bad for bots

In two new studies, researchers sought to measure how people responded to robots on an emotional and neurological level. In the first study, volunteers were shown videos of a small dinosaur robot being treated affectionately or violently. In the affectionate video, humans hugged and tickled the robot, and in the violent video, they hit or dropped him. [5 Reasons to Fear Robots]

Scientists assessed people's levels of physiological excitation after watching the videos by recording their skin conductance, a measure of how well the skin conducts electricity. When a person is experiencing strong emotions, they sweat more, increasing skin conductance.??

The volunteers reported feeling more negative emotions while watching the robot being abused. Meanwhile, the volunteers' skin conductance levels increased, showing they were more distressed.

In the second study, researchers use functional magnetic resonance imaging (fMRI) to visualize brain activity in the participants as they watched videos of humans and robots interacting. Again, participants were shown videos of a human, a robot, and, this time, an inanimate object being treated with affection or abuse.

In one video, for example, a man appears to beat up a woman, strangle her with a string and attempt to suffocate her with a plastic bag. In another, a person does the same things to the robot dinosaur.

Affectionate treatment of the robot and the human led to similar patterns of neural activity in regions in the brain's limbic system, where emotions are processed, fMRI scans showed. But the watchers' brains lit up more while seeing abusive treatment of the human than abuse of the robot, suggesting greater empathy for the human.

"We think that, in general, the robot stimuli elicit the same emotional processing as the human stimuli," said lead study author Astrid Rosenthal-von der P?tten of the University of Duisburg Essen, in Germany. Rosenthal-von der P?tten suspects that people still have greater empathy for humans than robots, as evidenced by the stronger effect of watching violence toward the human than the robot.

Still, the study only assessed people's immediate reactions to the emotional cues, Rosenthal-von der P?tten said. "We don't know what happens after the short term," she said.

Human-robot interactions

That humans would show empathy for the robot is not surprising, because the bot looked and behaved like an animal, roboticist Alexander Reben, founder of the company BlabDroid, LLC and a research affiliate at MIT, told LiveScience. Reben, who was not involved in the recent study, himself builds small cardboard robots that tap into the human affinity for cute creatures.

Some people find the idea of humans empathizing with robots concerning. But Reben compared trends in robot development with breeding dogs for companionship. "We have been doing this for millennia," he said. "I think we're doing the same thing with robots."

Humans have been known to show empathy for robots in a variety of contexts. For instance, soldiers form bonds with robots on the battlefield. Other research suggests that humans feel more empathy for robots the more realistic they seem, but not if they're too humanlike.

As robots become more and more ubiquitous, understanding human-robot interactions will take on increasing importance, Rosenthal-von der P?tten said.

The new research will be presented in June at the International Communication Association Conference in London.

Follow Tanya Lewis on Twitter and Google+.?Follow us @livescience, Facebook& Google+. Original article on?LiveScience.com.

Copyright 2013 LiveScience, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Source: http://news.yahoo.com/humans-show-empathy-robots-131036625.html

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Five days of fear: What happened in Boston

FILE - This Monday, April 15, 2013 file photo provided by Bob Leonard shows second from right, Tamerlan Tsarnaev, who was dubbed Suspect No. 1 and third from right, Dzhokhar A. Tsarnaev, who was dubbed Suspect No. 2 in the Boston Marathon bombings by law enforcement. This image was taken approximately 10-20 minutes before the blast. Since Monday, Boston has experienced five days of fear, beginning with the marathon bombing attack, an intense manhunt and much uncertainty ending in the death of one suspect and the capture of the other. (AP Photo/Bob Leonard, File)

FILE - This Monday, April 15, 2013 file photo provided by Bob Leonard shows second from right, Tamerlan Tsarnaev, who was dubbed Suspect No. 1 and third from right, Dzhokhar A. Tsarnaev, who was dubbed Suspect No. 2 in the Boston Marathon bombings by law enforcement. This image was taken approximately 10-20 minutes before the blast. Since Monday, Boston has experienced five days of fear, beginning with the marathon bombing attack, an intense manhunt and much uncertainty ending in the death of one suspect and the capture of the other. (AP Photo/Bob Leonard, File)

FILE - In this Monday, April 15, 2013 file photo, an emergency responder and volunteers, including Carlos Arredondo, in the cowboy hat, push Jeff Bauman in a wheelchair after he was injured in one of two explosions near the finish line of the Boston Marathon. Since Monday, Boston has experienced five days of fear, beginning with the marathon bombing attack, an intense manhunt and much uncertainty ending in the death of one suspect and the capture of the other. (AP Photo/Charles Krupa, File)

FILE - In this Monday, April 15, 2013 file photo provided by Ben Thorndike, people react to an explosion at the 2013 Boston Marathon in Boston. Since Monday, Boston has experienced five days of fear, beginning with the marathon bombing attack, an intense manhunt and much uncertainty ending in the death of one suspect and the capture of the other. (AP Photo/Ben Thorndike, File)

FILE - In this Monday, April 15, 2013 file photo, Bill Iffrig, 78, lies on the ground as police officers react to a second explosion at the finish line of the Boston Marathon in Boston. Iffrig, of Lake Stevens, Wash., was running his third Boston Marathon and near the finish line when he was knocked down by one of the two bomb blasts. Since Monday, Boston has experienced five days of fear, beginning with the marathon bombing attack, an intense manhunt and much uncertainty ending in the death of one suspect and the capture of the other. (AP Photo/The Boston Globe, John Tlumacki, File) MANDATORY CREDIT: THE BOSTON GLOBE, JOHN TLUMACKI

FILE - In this Tuesday, April 16, 2013 file photo, Tammy Lynch, right, comforts her daughter Kaytlyn, 8, after leaving flowers and some balloons at the Richard home in the Dorchester neighborhood of Boston. Kaytlyn was paying her respects to her friend, 8-year old Martin Richard who was killed in Monday's bombings at the finish line of the Boston Marathon. Since Monday, Boston has experienced five days of fear, beginning with the marathon bombing attack, an intense manhunt and much uncertainty ending in the death of one suspect and the capture of the other. (AP Photo/Michael Dwyer, File)

(AP) ? In the tight rows of chairs stretched across the Commonwealth Ballroom, the nervousness ? already dialed high by two bombs, three deaths and more than 72 hours without answers ? ratcheted even higher.

The minutes ticked by as investigators stepped out to delay the news conference once, then again. Finally, at 5:10 p.m. Thursday, a pair of FBI agents carried two large easels to the front of the Boston hotel conference chamber and saddled them with display boards. They turned the boards backward so as not to divulge the results of their sleuthing until, it had been decided, they could not afford to wait any longer.

Now the time had come to take that critical, but perilous step: introducing Boston to the two men believed responsible for an entire city's terror.

"Somebody out there knows these individuals as friends, neighbors, co-workers or family members of the suspects," said Richard DesLauriers, the FBI agent in charge in Boston. As he spoke, investigators flipped the boards around to reveal grainy surveillance-camera images of the men whose only identity was conferred by the black ball cap and sunglasses on one, the white ball cap worn backward on the other.

"Though it may be difficult, the nation is counting on those with information to come forward and provide it to us."

Photographers and TV cameras pushed forward, intent on capturing the images, even as people in the lobby stared into computers and smart phones, straining to recognize the faces. In living rooms and bars and offices across the city, and across the country, so many people looked up and logged on to examine the faces of the men deemed responsible for the bombing attack of the Boston Marathon, that the FBI servers were instantly overwhelmed.

At the least, Bostonians told each other, the photos proved that the monsters the city had imagined were responsible for maiming more than 170 were nothing more than ordinary men. But even as that relief sank in, the dread that had gripped the city since Monday at 2:50 p.m. was renewed.

If everyone had seen these photos, then that had to mean the suspects had seen them, too.

What desperation might they resort to, marathoner Meredith Saillant asked herself, once they were confronted with the certainty that their hours of anonymity were running out?

On the morning after the marathon, Saillant had fled the city for the mountains of Vermont with three friends and their children, trying to escape nightmares of the bombs that had detonated on the sidewalk just below the room where they'd been celebrating her 3:38 finish. Now, she put aside her glass of wine, reaching for the smart phone her friend offered and scrutinized the photos of the men who had defeated her city on what was supposed to be its day of camaraderie and strength.

"I expected that I would feel relief, 'OK, now I can put a face to it,' and start some closure," Saillant says. "But I think I felt more doom. I felt, I don't know, chilled. Knowing where we are and the era in which we live, I knew that as soon as those pictures went up that it was over, that something was going to happen ... like it was the beginning of the end."

There was no way she or the people of Boston could know, though, just when that end would come ? or how.

___

Marathon Monday dawned with the kind of April chill that makes spectators shiver and runners smile ? the ideal temperature for keeping a body cool during 26.2 miles of pounding over hills and around curves. By the four-hour mark, more than 2/3 of the field's 23,000 runners had crossed the finish line, and the crowds of onlookers were beginning to thin a little. But the growing warmth made it an afternoon to relish.

Passing the 25-mile mark, Diane Jones-Bolton, 51, of Nashville, Tenn., picked up the pace, relishing the effort and the sense of accomplishment of her 195th marathon.

Near the finish line, Brighid Wall of Duxbury, Mass., stood to watch the race with her husband and children, cheering on the competitors laboring through the race's final demanding steps.

In the post-race chute Tracy Eaves, a 43-year-old controller from Niles, Mich., proudly claimed her medal and a Mylar blanket, and took a big swig from a bottle of Gatorade.

And at the corner of Newbury Street and Gloucester, cab driver Lahcene Belhoucet pulled over, relishing the overabundance of paying passengers on an afternoon that traditionally gives almost as much of a boost to Boston's economy as it does to the city's spirits.

But the blast ? so loud it recalled the cannon fire heard on summer nights when the Boston Pops plays the 1812 Overture ? brought the celebration crashing down.

"Everyone sort of froze, the runners froze, and then they kept going because you weren't sure what it was," Wall said. "The first explosion was far enough away that we only saw smoke." Then the second bomb exploded, this time just 10 feet away.

"My husband threw our kids to the ground and lay on top of them," Wall said. "A man lay on top of us and said, 'Don't get up! Don't get up!' "

From her spot beyond the finish, a "huge shaking boom" washed over Eaves.

"I turned around and saw this monstrous smoke," she said. She thought it might be part of the festivities, until the second blast and volunteers began rushing the runners from the scene.

"Then you start to panic," she said.

Back in the field, Jones-Bolton noticed runners turning around and coming back at her. Then she realized most were wearing the blankets given to those who'd already completed the race. Suddenly the race came to halt, but nobody could say why. When word began to spread, Jones-Bolton panicked at the thought of her husband standing at the finish line, but was reassured by other runners.

At the finish, Wall, her husband and children raised their heads after a minute or two of silence. Beside them, a man was kneeling, looking dazed, blood dripping from his head. A body lay on the ground nearby, not moving at all. But in a landscape of blood and glass and twisted metal, they were far from alone.

"We grabbed each other and we ran but we didn't know where to run to because windows were blown out so another man helped me pick up my daughter," and they ran into a coffee shop, out the back door into an alley and kept going.

Meanwhile, the instincts of Dr. Martin Levine, a Bayonne, N.J., physician who has long volunteered to attend to elite runners at the finish line, told him to do just the opposite. Looking up at the plume of smoke, he estimated it was about two storefronts wide and quickly calculated how many spectators might be located in such an area.

"Make room for casualties ? about 40!," he yelled into the runners' relief tent. "Get the runners out if they can!" And he took off. Just then the second bomb went off. He reached the site to find a landscape resembling a battlefield, littered with severed limbs.

"The people were still smoking, their skin and their clothes were burning," he said. "There were lower extremity body parts all over the place ... and all of the wounds were extreme gaping holes, with the flesh hanging from the bones ? if there was any bone left."

Back in his cab, Belhoucet said he mistook the first blast for an earthquake. Fearing that a building might collapse, he considered running. But then people came pouring down the street and he beckoned a family into the car. He grabbed the wheel, then turned momentarily to ask where they wanted to go.

Only then did he notice the man's face, dripping with blood.

___

Now, three days after the bombing, investigators had made significant headway in deciphering the method behind the terror.

Armies of white-suited agents had spent many hours sifting through the evidence littering Boylston Street, climbing to nearby rooftops to make sure no clue would go overlooked. Their efforts revealed that the bombers had constructed crudely assembled weapons, using plans easily found on the Internet, from pressure cookers, wires and batteries popular at hobby shops. But investigators still did not know why. And, more importantly, they had only the haziest idea of whom to hold responsible.

It all came down to the photos, culled after a painstaking search of hundreds of hours of videotape and photographs gathered from surveillance cameras and spectators. But if they were unable to identify the men, that left the investigators with a difficult choice: They could keep them to law enforcement officers who so far had had no luck, prolonging the search and risking letting the men slip away or attack again. Or they could ask the public for help. But then, the suspects would know the net was closing in.

When they decided to release them, it would only put Bostonians further on edge.

"There was this kind of strange tension," said Brian Walker of Boston. "You walk by people and you just kind of look at them out of the corner of your eye and check them out. I was conscious that I didn't feel comfortable walking around with a backpack. It was like I just want to be safe here and everybody is kind of jumpy."

But as investigators pored over tips in the hours before the photos were made public, the city, at least, was struggling to right itself.

On Monday, the bombs had exploded just a half-block before Brian Ladley crossed the Marathon finish line. But, feeling lucky to be alive, he was out at 7 a.m. Thursday to join the line at the Cathedral of the Holy Cross, hoping to hear President Barack Obama speak at an interfaith service to honor the victims. The event was still hours away, but when tickets ran out, authorities spotted his marathon jacket and plucked him and some other runners out of line to watch the service in a nearby school auditorium.

"If they sought to intimidate us, to terrorize us ... it should be pretty clear right now that they picked the wrong city to do it," Obama told the crowd of more than 2,000 inside the church. "We may be momentarily knocked off our feet. But we'll pick ourselves up. We'll keep going. We will finish the race."

After it ended, Ladley found himself shaking hands with the president, too awestruck to remember their conversation. But what meant the most was the camaraderie of the crowd.

"It was wonderful to have a moment with other runners and be able to share our stories," he said.

Less than a mile away, 85-year-old Mary O'Kane strained at the bell ropes in the steeple of historic Arlington Street Church, imagining the sounds spreading a healing across her city ? and the land. Sprinkled amid hymns like "Amazing Grace" and "A Mighty Fortress," patriotic tunes like "America the Beautiful" and "God Bless America" wafted down from the 199-foot steeple and over Boston Common across the street.

"I feel joyful. I feel worshipful. I feel glad to be alive," she said. The city's response to the bombing had revealed its strength and brotherhood, attributes she was certain would carry it through. But her belief in Boston was tinged with sadness. Now she understood a little bit about how New Yorkers who experienced 9/11 must feel.

"I mean, it happened ? it finally happened," O'Kane said. "We were feeling sort of immune. Now we're just a part of everybody...The same expectations and fears."

___

In the hours after investigators released the photos of the men known only as Suspect No. 1 and Suspect No. 2, the city went on about the business of a Thursday night, a semblance of normality restored except for the area immediately surrounding the blast site. Restaurants that had closed in the nights just after the bombing reopened for business. At Howl at the Moon, a bar on High Street downtown, the dueling pianists took the stage at 6 p.m., almost as if nothing had changed.

But across the Charles River in Cambridge, Tamerlan Tsarnaev, 26, and his brother Dzhokhar, 19, were arming up.

Later, friends and relatives would recall both as seemingly incapable of terrorism. The brothers were part of an ethnic Chechen family that came to the U.S, in 2002, after fleeing troubles in Kyrgyzstan and then Dagestan, a predominantly Muslim republic in Russia's North Caucasus. They settled in a working-class part of Cambridge, where the father, Anzor Tsarnaev, opened an auto shop.

Dzhokhar did well enough in his studies at prestigious Cambridge Rindge and Latin to merit a $2,500 city scholarship for college.

Tamerlan, though, could be argumentative and sullen. "I don't have a single American friend," he said in an interview for a photo essay on boxing. He was clearly the dominant of the two brothers, a former accounting student with a wife and daughter, who explained his decision to drop out of school by telling a relative, "I'm in God's business."

It's not that Tamerlan Tsarnaev didn't have options. For several years he'd impressed coaches and others as a particularly talented amateur boxer.

"He moved like a gazelle. He could punch like a mule," said Tom Lee, president of the South Boston Boxing Club, where Tsarnaev began training in 2010."I would describe him as a very ordinary person who didn't really stand out until you saw him fight."

But away from the gym, Tamerlan swaggered around his parents' home like he owned it, those who knew him said. And he began declaring an allegiance to Islam, joined with increasingly inflammatory views.

One of the brothers' neighbors, Albrecht Ammon, recalled an encounter in which the older brother argued with him about U.S. foreign policy, the wars in Afghanistan and Iraq, and religion. The Bible, Tamerlan told him, was a "cheap copy" of the Quran, used to justify wars with other countries. "He had nothing against the American people," Ammon said. "He had something against the American government."

Dzhokhar, on the other hand, was "real cool," Ammon said. "A chill guy."

Since the bombing, the younger brother had maintained much of that sense of cool, returning to classes at the University of Massachusetts-Dartmouth and attending student parties.

On the day of the bombing, he wrote on Twitter: "There are people that know the truth but stay silent & there are people that speak the truth but we don't hear them cuz they're the minority."

But by Tuesday, when he stopped by a Cambridge auto garage, the mechanic, accustomed to long talks with Dzhokhar about cars and soccer, noticed the normally relaxed 19-year-old was biting his nails and trembling.

The mechanic, Gilberto Junior, told Tsarnaev he hadn't had a chance to work on a car he'd dropped off for bumper work. "I don't care. I don't care. I need the car right now," Junior says Dzhokhar Tsarnaev told him.

Now, with the photos out, it was time to move. Already, one of Dzhokhar's college classmates had taken to studying the photo of Suspect No. 2 ? nearly certain it was his friend, although others were skeptical. It wouldn't take long for others to notice.

___

The call to the police dispatcher came in at 10:20 p.m. Thursday: shots fired on the Massachusetts Institute of Technology campus in Cambridge. Ten minutes later, when police arrived to investigate, they found one of their own, university officer Sean Collier, shot multiple times inside his cruiser. He had been monitoring traffic near a campus entrance, said Cambridge Police Commissioner Robert Haas.

The baby-faced 26-year-old Collier, in just a year on patrol, had impressed both his supervisors and the students as particularly dedicated to his work. A few days earlier, he'd asked Chief John DiFava for approval to join the board at a homeless shelter, in a bid to steer people away from problems before they developed. Now he was being pronounced dead at the hospital.

Witnesses reported seeing two men. Fifteen minutes later, another call came in of an armed carjacking by two men. That was on Brighton Avenue, Haas said. For the next half-hour, the carjacking victim was kept in his car, had his bank card used to pocket $800 from an ATM and was told by his captors that they'd just killed a police officer and were responsible for the bombing, Watertown Police Chief Edward Deveau said. Haas said the man escaped from the car when his captors went into a Cambridge gas station, and he called police.

Investigators had their break.

Although police had previously said the carjacking victim had left his cellphone in the Mercedes SUV, enabling police to track its location via GPS, Haas said Sunday the phone was found on Memorial Drive near the gas station. It was past 11 p.m. now, and as the Mercedes sped west into Watertown, one of Deveau's officers spotted it and gave chase, realizing too late he was alone against the brothers driving two separate cars. When both vehicles came to a halt, Deveau said, the men stepped out and opened fire. Three more officers arrived, then two who were off-duty, fending off a barrage. When a Massachusetts Bay Transportation Authority officer, Richard Donohue, pulled up behind them, a bullet to the groin severed an artery and he went down.

"We're in a gunfight, a serious gunfight," Deveau said. "Rounds are going and then all of the sudden they see something being thrown at them and there's a huge explosion. I'm told it's exactly the same type of explosive that we'd seen that happened at the Boston Marathon. The pressure cooker lid was found embedded in a car down the street."

In the normally quiet streets of Watertown, residents rushed to their windows.

"Now I know what it must be like to be in a war zone, like Iraq or Afghanistan," said Anna Lanzo, a 70-year-old retired medical secretary whose house was rocked by the explosion.

As the firefight continued, Tamerlan Tsarnaev moved closer and closer to the officers, until less than 10 feet separated them, continuing to shoot even as he was hit by police gunfire, until finally he ran out of ammunition and officers tackled him, Deveau said. But as they struggled to cuff the older brother, he said Dzhokhar Tsarnaev jumped back in the second vehicle.

"All of the sudden somebody yelled 'Get out of the way!' and they (the officers) look up and here comes the black SUV that's been hijacked right at them. They dove out of the way at the last second and he ran over his brother, dragged him down the street and then fled," he said.

Tamerlan Tsarnaev was rushed to a hospital, where he was pronounced dead.

A few blocks over, Samantha England, was heading to bed when she heard what sounded like fireworks. When she called 911, the dispatcher told her to stay inside, lock the doors and get down on the floor. She reached for the TV, trying to figure out what was going on.

"As soon as they said it on the news, that's when we started to freak out and realize they were here," England said.

But after all the gunfire, the younger Tsarnaev had vanished. Officers, their guns drawn, moved through the neighborhood of wood-frame homes and cordoned off the area as daylight approached.

At Kayla DiPaolo's house on Oak Street, she scrambled to find shelter in the door frame of her bedroom as a bullet came through the side paneling on her front door. At 8:30 a.m., Jonathan Peck heard helicopters circling above his house on Cypress Street and looked outside to see about 50 armed men.

"It seemed like Special Forces teams were searching every nook and cranny of my yard," he said.

Unable to find Tsarnaev, authorities announced they were shutting down not just Watertown, but all of Boston and many of its suburbs, affecting more than 1 million people. Train service was cancelled. Taxis were ordered off the streets. Filming of a Hollywood movie called "American Hustle" ? the tale of an FBI sting operation ? was called off. In central Boston, streets normally packed with office workers turned eerily silent.

"It feels like we're living in a movie. I feel like the whole city is in a standstill right now and everyone is just glued to the news," Rebecca Rowe of Boston said.

But as the hours went by, and the house-to-house search continued, investigators found no sign of their quarry. Finally, at about 6:30 p.m., they announced the shutdown had been lifted.

At the Islamic Society of Boston, Belhoucet, the cab driver who'd fled the bombing scene, arrived for evening prayer only to find it shuttered. But he told himself the city's paralysis could not continue much longer. "Because there is no place to hide," Belhoucet said. "His picture is all over the world now."

Across Watertown, people ventured out for the first time in hours to enjoy the day's unusually warm air. They included a man who took a few steps into his Franklin Street backyard, then noticed the tarp on his boat was askew. He lifted it, looked inside and saw a man covered in blood.

He rushed back in to call police. And again, the neighborhood was awash in officers in fatigues and armed with machine guns. The man hunkered down inside the boat, later identified as Dzhokhar Tsarnaev, traded fire with police for more than an hour, until at last, they were able to subdue him.

Around 8:45 p.m., police scanners crackled:

"Suspect in custody."

On the Twitter account of the Boston police department, the news was trumpeted to a city that had been holding its collective breath over five days of fear: "CAPTURED!!! The hunt is over. The search is done. The terror is over. And justice has won."

With that, Boston poured into the streets. In Watertown, officers lowered their guns and grasped hands in congratulation. Bostonians applauded police officers and cheered as the ambulance carrying Tsarnaev passed. Under the flashing lights from Kenmore Square's iconic Citgo sign, Boston University sophomore Will Livingston shouted up to people hanging out of open windows: "USA! USA! Get hyped, people!"

But on Boylston Street, where the bombing site remained cordoned off, there was silence even as the crowd swelled, and tears were shed.

"I think it's a mixture of happiness and relief," said Matt Taylor, 39, of Boston, a nurse who drove to Boylston Street as soon as he heard of the arrest.

Nearby, Aaron Wengertsman, 19, a Boston University student, who was on the marathon route a mile from the finish line when the bombs exploded, stood wrapped in an American flag. "I'm glad they caught him alive," Wengertsman said. "It's humbling to see all these people paying their respects."

They included 25-year-old attorney Beth Lloyd-Jones, who was 25 blocks from the bombings and considers them deeply personal, a violation of her city. She is planning her wedding inside the Boston Public Library, adjacent to where the bombs exploded.

"Now I feel a little safer," she said. But she couldn't help but think of the victims who suffered in the explosions that started it all: "That could have been any one of us."

___

EDITOR'S NOTE ? This reconstruction of events is based on reporting and interviews by Associated Press journalists across Boston and elsewhere from Monday through Saturday. AP writers Bridget Murphy, Michael Hill, Allen G. Breed, Denise Lavoie, Jeff Donn, Meghan Barr, Jay Lindsay, Katie Zezima, Pat Eaton-Robb, Rodrique Ngowi, Bob Salsberg, Marilynn Marchione and Geoff Mulvihill in Boston; Michelle Smith in Providence, R.I., Michael Rubinkam in Scranton, Pa.; and Trenton Daniel in Port-au-Prince, Haiti, contributed to this report. Follow Adam Geller on Twitter at http://twitter.com/AdGeller

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/386c25518f464186bf7a2ac026580ce7/Article_2013-04-22-Boston%20Marathon-Five%20Days%20of%20Fear/id-fd044213e23149b1aad6d78252e9ae1a

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