Sunday, March 31, 2013

For many, Holy Days are now 'family holidays' | The Salt Lake Tribune

Emily Hilliard will cook a festive brunch with friends on Easter Sunday. But none in her Washington, D.C., social circle of foodies, folklorists and fiddlers will go to church that day.

In Denver, Ambra Vibran will enjoy an Italian feast with cousins that Sunday. But, she says, "my spiritual life is in hiking, skiing, kayaking and enjoying God?s creation."

Eleanor Drey plans a Jewish traditional meal where family and friends will talk about freedom. But it wasn?t on Passover. Folks are tied up with their kids? spring vacations. They?ll gather at Drey?s San Francisco home in April instead.

This time of year, most Americans are celebrating essential stories of Christianity and Judaism: God freeing the enslaved is a key Passover theme. Easter?s core is Jesus? resurrection, offering a doorway to salvation.

But many celebrate with a twist.

While 73 percent of Americans call themselves Christian, just 41 percent say they plan to attend Easter worship services, according to a March 13 survey of 1,060 U.S. adults by LifeWay Research, a Nashville, Tenn.-based Christian research agency. Passover is a home-centered celebration, but it?s not known how many Jews plan to recite the prayers and serve symbolic foods at their Seder meal.

In the gap between faith and practice are millions of people who delight in Easter and Passover as "holidays," not "holy days."

They?re just as Christian, just as Jewish, in their own eyes as people who follow traditional scripts ?? church on Sunday before carving the ham or the Seder rituals before slurping the matzo ball soup. They?ve simply redefined their spirituality to center on the people at the table ? shared time, shared values with their nearest and dearest.

"Relationships have replaced religion for many Millennials," says Esther Fleece, who spent three years specializing in outreach to young adult Christians for the evangelical group Focus on the Family.

Fleece, now a literary agent in Orange, Calif., is a devoted churchgoer herself. This year, as always, she says, "I?ll invite my Creaster [Christmas and Easter] friends to come with me Easter Sunday."

story continues below

Still, Fleece says, many won?t come. They don?t think they need it.

"Religion gives people a basis for morality, for hope and a greater purpose," Fleece says. "Millennials form their friendship groups around similar interests. They reinforce and encourage each other."

Fleece?s friend Vibran, 30, takes the view that "religion has evolved over the years. I feel like it?s whatever you want it to be. I believe the Catholic moral values, but I don?t feel I have to go to church to consider myself a believer in that."

Hilliard, 29, might find herself singing old-time hymns on Easter. However, the singing is not about theology. Hymns offer "a connection to tradition and history and to feeling part of something larger than yourself," says Hilliard, who plays the fiddle.

The meal that Hilliard?s friends will cook together reflects their support for food from local growers and sustainable farm culture. At the table, "You are beholden to each other. You do talk about values and ways of living."

Unlike earlier generations, "Millennials prioritize relationships, especially family, over religion," explains Jess Rainer, who co-wrote a book drawn from the survey, The Millennials: Connecting to America?s Largest Generation.

This cultural religion view is not confined to the young. When Gallup tracked people?s happiness every day for a year in 2008, the peak of the first five months was Easter Sunday, when people logged the most hours with those who make them happy.

Since tension is not conducive to happiness, many cut one flash point ? God ? out of the holiday conversation. Easter becomes less about resurrection and salvation from sin, more about a universal longing for rebirth and the joy of spring. Passover shifts from liberation at God?s hand to human responsibility toward one another.

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Source: http://www.sltrib.com/sltrib/lifestyle/56079623-80/easter-says-passover-religion.html.csp

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Survey: Samsung takes the lead from Nokia, BlackBerry in key emerging markets

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AP PHOTOS: Images of Good Friday around the world

Pakistani Christians pray during a Mass on Good Friday in a church in Islamabad, Pakistan, Friday, March 29, 2013. Christians around the world are marking the Easter holy week. (AP Photo/Muhammed Muheisen)

Pakistani Christians pray during a Mass on Good Friday in a church in Islamabad, Pakistan, Friday, March 29, 2013. Christians around the world are marking the Easter holy week. (AP Photo/Muhammed Muheisen)

Faithful touch a statue of Virgin Mary at the end of a Good Friday procession in Managua, Nicaragua, Friday, March 29, 2013. Holy Week commemorates the last week of the earthly life of Jesus Christ culminating in his crucifixion on Good Friday and his resurrection on Easter Sunday. (AP Photo/Esteban Felix)

Penitents carry a Jesus Christ figure as they take part in a procession of "Santo Cristo" during Holy Week in Bercianos de Aliste, northern Spain, Friday, March 29, 2013. Hundreds of processions take place throughout Spain during the Easter Holy Week. (AP Photo/Andres Kudacki)

Pilgrims walk with crosses as the Northern Cross pilgrimage makes its final leg of the journey to Holy Island, Berwick Upon Tweed, England, Friday, March 29, 2013. For more than 30 years, groups of pilgrims celebrate Easter by crossing the tidal causeway during the annual Christian cross carrying pilgrimage to Holy Island , the pilgrims walk around 100 miles through Northumberland and the Scottish Borders during Holy Week.(AP Photo/Scott Heppell).

Masked penitents from La Santa Vera Cruz brotherhood, right, walks along the way with his assistant, taking part in an Easter procession known as 'Los Picaos' in the small village of San Vicente de la Sonsierra, northern Spain on Friday, March 29, 2013. Penitents, or disciplinants, take part on the procession lashing themselves as an act of faith and penance, a tradition dating from the early 16th century.(AP Photo/Alvaro Barrientos)

Christians in Good Friday processions the world over bear crosses, wounds and prayers over a few blocks or many miles to reenact Jesus' suffering on the path to crucifixion. At the Vatican, Pope Francis lies down in prayer during the Passion of Christ Mass inside St. Peter's Basilica. Hundreds of Christians stream through the cobblestone alleyways of Jerusalem's Old City toward the Church of the Holy Sepulcher, traditionally believed by many to be the site of the crucifixion.

Here are some images of Good Friday around the world.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/cae69a7523db45408eeb2b3a98c0c9c5/Article_2013-03-29-BC%20-Good%20Friday-Photo%20gallery/id-e8f95aff1b084a75ad60a088fde11447

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Saturday, March 30, 2013

Mystery elf door in park sparks attention on the Web

A tiny addition in San Francisco?s Golden Gate Park is getting big attention on the Web. A photo on the neighborhood site Richmondsfblog.com first published a photo of a teeny wooden door that mysteriously appeared at the bottom of a tree with a small, gnome-sized gap.

The door has opened up plenty of interest on the Internet?and spurred visitors to the urban oasis to explore the door that's not on any map. It can be found by searching for the grove of old trees in the park's concourse near the Golden Gate Band Shell between the de Young Museum and the California Academy of Sciences.

Creative theories about how it got there abound?mostly as fanciful as the mystery door itself. An elf? A fairy? A house for a mouse?

Kids and kids at heart weighed in with ideas. As ?Dude? joked on the neighborhood website, ?It?s a very tiny coffee shop. It?s already played out.?

Another commenter, "Hobbit," suggested, ?Looks like a squirrel with a [k]nack for architecture."

Everyone seems to agree, it?s cool.

Over on Twitter, K L ?@miss_kr15 posted, ?I totally dragged my bf to the park & hunted that door down after seeing it in your blog. Seriously the coolest thing ever!?

Allyson E-B ?@allysoneb added, ?My daughter left some candy, when we came back 2 hours later it was gone. Fairies!?

The Editor of RichmondSFBlog, Sarah Bacon, noted to Yahoo News in an email that the tree door has been the site's most popular topic ever. ?It?s really captured people's imaginations and has gotten more attention than we ever expected. It's a delightful and magical gift someone gave to the park.?

She added, ?We're thrilled by the response to the story?I think it's proof that everyone has a child inside that enjoys whimsy and fantasy. It's these little finds that make our neighborhood so special.?

The little find has inspired lots of speculation, but nobody so far has come forth to take credit for building the opening. The good news: The minidoor won?t be closed down anytime soon.

Acknowledging the interest in the door sized for sprites, Andy Stone, Golden Gate Park's department?s section supervisor, wrote in an email to Yahoo News, "We do not encourage such doors but will leave it in place unless it causes problems."

The tiny tree door is not the first to mysteriously appear in a park. Commenters have pointed out there?s the Elf Tree near Lake Harriet in Minneapolis that also has a tiny door in a living tree. Kids leave messages and candy for the invisible resident.

Source: http://news.yahoo.com/blogs/sideshow/mystery-elf-door-park-sparks-attention-182312844.html

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Syrian rebels in strategic battle for south

In this Thursday March 28, 2013 image taken from video obtained from the Ugarit News, which has been authenticated based on its contents and other AP reporting, shows fighters from the Syrian Free Army fire on a Syrian army position in Dael less than 15 kilometers (10 miles) from the Jordanian border in Daraa province, Syria. Syrian rebels on Friday captured a strategic town near the border with Jordan after a day of fierce clashes that killed dozens of people, activists said, as opposition fighters expand their presence in the south, considered a gateway to Damascus. (AP Photo/Ugarit News via AP video)

In this Thursday March 28, 2013 image taken from video obtained from the Ugarit News, which has been authenticated based on its contents and other AP reporting, shows fighters from the Syrian Free Army fire on a Syrian army position in Dael less than 15 kilometers (10 miles) from the Jordanian border in Daraa province, Syria. Syrian rebels on Friday captured a strategic town near the border with Jordan after a day of fierce clashes that killed dozens of people, activists said, as opposition fighters expand their presence in the south, considered a gateway to Damascus. (AP Photo/Ugarit News via AP video)

In this Thursday March 28, 2013 image taken from video obtained from the Ugarit News, which has been authenticated based on its contents and other AP reporting, shows a building at the Syrian government checkpoint on fire, in Dael less than 15 kilometers (10 miles) from the Jordanian border in Daraa province, Syria. Thursday, March 28, 2013. Syrian rebels on Friday captured a strategic town near the border with Jordan after a day of fierce clashes that killed dozens of people, activists said, as opposition fighters expand their presence in the south, considered a gateway to Damascus. (AP Photo/Ugarit News via AP video)

In this Thursday March 28, 2013 image taken from video obtained from the Shaam News Network, which has been authenticated based on its contents and other AP reporting, shows heavy clashes between Syrian Free Army fighters and the regime?s army in Dael less than 15 kilometers (10 miles) from the Jordanian border in Daraa province, Syria. Syrian rebels on Friday captured a strategic town near the border with Jordan after a day of fierce clashes that killed at least 38 people, activists said, as opposition fighters expand their presence in the south, considered a gateway to Damascus. (AP Photo/Shaam News Network via AP video)

In this Thursday March 28, 2013 image taken from video obtained from the Shaam News Network, which has been authenticated based on its contents and other AP reporting, shows Syrian Free Army fighters in Dael less than 15 kilometers (10 miles) from the Jordanian border in Daraa province, Syria. Syrian rebels on Friday captured a strategic town near the border with Jordan after a day of fierce clashes that killed at least 38 people, activists said, as opposition fighters expand their presence in the south, considered a gateway to Damascus. (AP Photo/Shaam News Network via AP video)

In this Thursday March 28, 2013 image taken from video obtained from the Shaam News Network, which has been authenticated based on its contents and other AP reporting, shows fighters from the Syrian Free Army firing on a Syrian army position in Dael less than 15 kilometers (10 miles) from the Jordanian border in Daraa province, Syria. Syrian rebels on Friday captured a strategic town near the border with Jordan after a day of fierce clashes that killed at least 38 people, activists said, as opposition fighters expand their presence in the south, considered a gateway to Damascus.(AP Photo/Shaam News Network via AP video)

BEIRUT (AP) ? Capitalizing on a recent influx of weapons, Syrian rebels are waging a strategic battle for the southern part of the country and seeking to secure a corridor from the Jordanian border to Damascus in preparation for an eventual assault on the capital.

On Friday, the rebels celebrated their latest victory: They seized full control of Dael, a key town along a main highway, after forces of President Bashar Assad's regime all but withdrew from the area.

"God is great! We are coming, Bashar!" armed fighters cried overnight Thursday after they captured the last of the military checkpoints in the town where Assad's forces had been holed up, according to amateur video posted online.

Dael is one of the bigger towns in the southern Daraa province, where the uprising against Assad began in March 2011, when security forces arrested high school students who scrawled anti-regime graffiti on a wall.

Activists say it was in Dael that the first statue of Assad's father and predecessor, the late President Hafez Assad, was first toppled shortly after the protests broke out.

The regime responded with a ferocious military crackdown in the area. For a long time, it succeeded in muting the revolt there while government troops turned their attention to defending Syria's northern and eastern regions against rebel advances as the uprising turned into a civil war in which an estimated 70,000 people have been killed.

But in dusty agricultural towns and villages across the province, the rebels have recently gone on the offensive, expanding their presence with a renewed sense of purpose. The rebel fighters include Islamic militants.

The strategic region ? known as the Houran plains, which stretch from the outskirts of the capital south into Jordan ? is seen as a crucial gateway to the ultimate prize of Damascus.

A recent influx of weapons appears to have made the goal seem more within reach than ever.

Although rebels control wide areas in northern Syria that border Turkey, the Jordanian frontier is only about 100 kilometers (60 miles) from Damascus, or a third of the distance to Turkey in the north, where fighters control large swaths of territory.

Rebels have established footholds in a number of Damascus suburbs but have only been able to push into limited areas in the southern and northeastern parts of the capital. Fighters say they are trying to carve out a route from Jordan to Damascus.

In recent weeks, they have made significant advances in the southern provinces of Daraa and Quneitra bordering Jordan and Israel, seizing towns and villages near the cease-fire line between Syria and Israel in the Golan Heights and along the international highway linking Damascus with Jordan.

They also seized several army checkpoints, clearing a 25-kilometer (15-mile) stretch along the Syrian-Jordanian border. Last week, rebels seized a major air defense base near the village of Saida.

It is difficult to know the size of the area controlled by the rebels. Activists say that in many towns and villages in the province, regime forces maintain "symbolic" presence through small bases and checkpoints that are increasingly coming under attack.

Fighting takes place on daily basis in areas like Tafas, Sheikh Maskin and Izraa along the route.

On Friday, regime forces abandoned the last of several checkpoints in Dael after a 24-hour rebel offensive. Dael has a population of 40,000 people, making it one of the bigger towns in the region, which is dotted with small family farms, and is less than 15 kilometers (10 miles) from the Jordanian border in Daraa province.

An activist in Tafas, who spoke on condition of anonymity because he feared government retaliation, said the presence of the regime forces in the province was shrinking daily.

The Ababil Houran and al-Omari brigades are among the prominent groups taking part in the fighting, along with the Yarmouk Martyrs Brigade, a band of Islamic militants that held 21 Filipino peacekeepers hostage for four days last month, raising concerns about the future of U.N. operations in the Golan Heights.

Amateur video posted online by activists showed rebels in the streets of Dael and the bodies of dead soldiers on the ground. They also showed women celebrating and fighters shouting, "We are coming, Bashar." The videos appeared genuine and corresponded to other Associated Press reporting on the events depicted.

The series of rebel gains coincided with what regional officials and military experts say is a sharp increase in weapons shipments to opposition fighters by Arab governments, in coordination with the U.S., in the hopes of readying a push into Damascus.

Officials and Western military experts have told the AP that Jordan has opened up as a new route for the weapons late last year. Two military analysts who closely follow the traffic said the weapons include more powerful, Croatian-made anti-tank guns and rockets, which the rebels have not had before.

Eliot Higgins in Britain and Nic Jenzen-Jones in Australia said they include M60 recoilless guns, M79 Osa rocket launchers, and RBG-6 grenade launchers, which all are powerful anti-tank weapons.

The weapons appear to have come in play recently. In videos posted on the Internet earlier this month, rebels are seen carrying M79 Osa rocket launchers and more advanced weapons than the ones that the rebels were previously known to have.

A Syrian opposition figure who closely follows the fighting on the ground said recent rebel gains were due to the new flow of weapons from Jordan. He said a new supply route from Jordan to Damascus meant the rebels can now advance from different fronts to the capital. He spoke on condition of anonymity because he was not authorized to discuss such matters on the record.

Syrian activist Maher Jamous, who is from Dael but lives in the United Arab Emirates, said that despite the steady advances and the latest rebel victory in Dael, the regime still maintains a strong presence in the strategic province that leads to the capital.

The regime is known to have posted elite troops in Daraa province, which separates Damascus from the Israeli-occupied Golan Heights that the Jewish state captured in 1967 and annexed in 1981.

The province was once considered one of the most loyal regime strongholds. Vice President Farouk al-Sharaa, Deputy Foreign Minister Faysal Mekdad, Information Minister Omran al-Zoubi and several others high ranking officials are from Daraa.

"Our tactical plan is (control of) Daraa and strategically Damascus because the regime will only be defeated and brought down in Damascus," said Col. Ahmad Fahd al-Naameh, commander of the Military Council of the Southern Front.

In comments to Al Arabiya, he denied receiving weapons through Jordan and said most of the weapons were captured after overrunning army posts or were bought with money from rich Syrians.

In other fighting, the Syrian Observatory for Human Rights said heavy clashes took place between regime forces and fighters trying again to storm a strategic military facility, known as the 17th Division base, north of the city of Raqqa that was captured by rebels this month.

The base is considered one of the most important remaining regime strongholds in the northern province that borders Turkey, the Observatory said. It added that warplanes carried out several air raids in the area.

The Observatory said regime forces bombarded the Damascus suburb of Adra, while the government-run Al-Ikhbariya TV said troops in the area killed "many terrorists" ? the term the regime uses for rebel fighters. The site is close to one of the main jails in Syria.

The Aleppo Media Center and the Observatory reported fighting, shelling and attacks by helicopter gunships near the international airport of the northern city of Aleppo, Syria's largest city and its commercial center.

At least 15 people were killed and many others wounded when a missile struck in the town of Hreitan, in Aleppo province, according to the Local Coordination Committees activist group. The report could not be independently verified.

___

Associated Press writer Bassem Mroue contributed to this report.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/cae69a7523db45408eeb2b3a98c0c9c5/Article_2013-03-29-ML-Syria/id-db39caa95afc4609b05f21d1ab04d5f5

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Science and engineering are cool, right? ?That’s a matter of opinion, but there is an increasing need in our country for students to study the STEM subjects–Science, Technology, Engineering and Math.? And with more information showing a link between technological innovation and creativity, why not foster both in your kids at the same time? ?Describing [...]

Source: http://the-gadgeteer.com/2013/03/29/littlebits-starter-kit-extended-kit-and-holiday-kit-review/

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China's Xi wraps up Africa tour in Republic of Congo

BRAZZAVILLE (Reuters) - China's newly appointed President Xi Jinping wrapped up a six-day tour of Africa on Friday in Republic of Congo, where he signed off on infrastructure projects and pledged deeper cooperation between his country and the continent.

Thousands of people, many wearing T-shirts bearing the president's likeness, turned out under a blazing equatorial sun to welcome the new Chinese leader to the former French colony's sprawling riverside capital, Brazzaville.

Xi, who in previous stops along the week-long trip has attempted to outline his African policy as a partnership among equals, used a speech before Congo's parliament to point to China and Africa's mutual reliance for their future success.

"The future, the development of China will be an unprecedented opportunity for Africa, and Africa's development will be the same for my country," Xi told lawmakers.

"We expect to work together with our African friends to seize upon historic opportunities and deepen cooperation ... in order to bring greater benefit to the Chinese and African peoples," he said.

China is offering $20 billion of loans to Africa between 2013 and 2015, and many governments welcome Beijing's growing business-focused presence on the continent as a welcome alternative to Western influence.

China imports oil from Congo, and on Friday, in line with promises to deepen the relationship with African partners, Xi oversaw finalization of nearly a dozen new deals.

He agreed to finance a $63 million project to construct a river port in Oyo, the hometown of Congo's President Denis Sassou N'Guesso, where the government plans to develop a new special economic zone.

Other projects to receive Chinese backing include a 19-megawatt hydroelectric power station in the northwest, and the construction of a new port capable of handling mineral ore shipments in Congo's economic capital, Pointe-Noire.

China also agreed to around 15 billion CFA francs ($29.36 million) in grants and zero-interest loans, and will build 200 homes and a school in the capital's Mpila, which was largely destroy when a weapons depot exploded there last year.

(Reporting by Christian Tsoumou; Writing by Joe Bavier; Editing by Michael Roddy)

Source: http://news.yahoo.com/chinas-xi-wraps-africa-tour-republic-congo-211422497.html

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Today on New Scientist: 28 March 2013

Our enduring love affair with 'flying jewels'

The Sensational Butterflies exhibition in London and a new book, Butterfly People, explore our fascination with these gorgeous insects

Storm erupts over publishing of Henrietta Lacks genome

Researchers withdraw a paper on the "HeLa" cervical cancer genome after descendants of the woman whose cells were used say it compromises their privacy

Tiny blue-bellied fish discovered in the Rio Negro

A small fish makes a big splash as Amazon researchers find an entirely new genus in their nets

Tender turtles: Their mums do care after all

Traumatised by all that footage of baby turtles being eaten by predators? You'll be delighted to learn that some turtle mums do help the hatchlings

Scuba-diving saboteurs caught trying to cut internet

A trio of cable saboteurs have allegedly been caught red-handed trying to sever internet lines into and out of Egypt

Sea hares use sticky weapon to cripple predators

Watch a sea hare knock out a lobster's sense of smell, in the first experiments revealing a defence mechanism that can inactivate senses

It is time to train atoms to do what we want

Pratibha Gai, winner of a L'Or?al-UNESCO For Women In Science award, reveals how her molecular film-making lets us control chemical reactions better

Digital shrinks find depressed faces and body language

Automatic systems that analyse gestures and facial expressions may soon be helping psychologists pick up the easily missed symptoms of depression

Vaccine promises to cull foot and mouth slaughter

A vaccine that allows vets to distinguish vaccinated cattle from those that are diseased could remove the need to preventatively slaughter animals

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Friday, March 29, 2013

Imaging methodology reveals nano details not seen before: Understanding nanoparticles at atomic scale in 3-D could improve materials

Mar. 27, 2013 ? A team of scientists from the University of California, Los Angeles (UCLA) and Northwestern University has produced 3-D images and videos of a tiny platinum nanoparticle at atomic resolution that reveal new details of defects in nanomaterials that have not been seen before.

Prior to this work, scientists only had flat, two-dimensional images with which to view the arrangement of atoms. The new imaging methodology developed at UCLA and Northwestern will enable researchers to learn more about a material and its properties by viewing atoms from different angles and seeing how they are arranged in three dimensions.

The study will be published March 27 by the journal Nature.

The authors describe being able to see how the atoms of a platinum nanoparticle -- only 10 namometers in diameter -- are arranged in three dimensions. They also identify how the atoms are arranged around defects in the platinum nanoparticle.

Similar to how CT scans of the brain and body are done in a hospital, the scientists took images of a platinum nanoparticle from many different directions and then pieced the images together using a new method that improved the quality of the images.

This novel method is a combination of three techniques: scanning transmission electron microscopy, equally sloped tomography (EST) and three-dimensional Fourier filtering. Compared to conventional CT, the combined method produces much higher quality 3-D images and allows the direct visualization of atoms inside the platinum nanoparticle in three dimensions.

"Visualizing the arrangement of atoms in materials has played an important role in the evolution of modern science and technology," said Jianwei (John) Miao, who led the work. He is a professor of physics and astronomy at UCLA and a researcher with the California NanoSystems Institute at UCLA.

"Our method allows the 3-D imaging of the local structures in materials at atomic resolution, and it is expected to find application in materials sciences, nanoscience, solid state physics and chemistry," he said.

"It turns out that there are details we can only see when we can look at materials in three dimensions," said co-author Laurence D. Marks, a professor of materials science and engineering at Northwestern's McCormick School of Engineering and Applied Science.

"We have had suspicions for a long time that there was more going on than we could see from the flat images we had," Marks said. "This work is the first demonstration that this is true at the atomic scale."

Nanotechnology expert Pulickel M. Ajayan, the Benjamin M. and Mary Greenwood Anderson Professor of Engineering at Rice University complimented the research.

"This is the first instance where the three-dimensional structure of dislocations in nanoparticles has been directly revealed at atomic resolution," Ajayan said. "The elegant work demonstrates the power of electron tomography and leads to possibilities of directly correlating the structure of nanoparticles to properties, all in full 3-D view."

Defects can influence many properties of materials, and a technique for visualizing these structures at atomic resolution could lead to new insights beneficial to researchers in a wide range of fields.

"Much of what we know about how materials work, whether it is a catalyst in an automobile exhaust system or the display on a smartphone, has come from electron microscope images of how the atoms are arranged," Marks said. "This new imaging method will open up the atomic world of nanoparticles."

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The above story is reprinted from materials provided by Northwestern University. The original article was written by Megan Fellman.

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


Journal Reference:

  1. Chien-Chun Chen, Chun Zhu, Edward R. White, Chin-Yi Chiu, M. C. Scott, B. C. Regan, Laurence D. Marks, Yu Huang, Jianwei Miao. Three-dimensional imaging of dislocations in a nanoparticle at atomic resolution. Nature, 2013; DOI: 10.1038/nature12009

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/top_news/top_technology/~3/KCt2vVQ9aYc/130327144122.htm

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NASA turns up the heat on construction of the Space Launch System

Mar. 27, 2013 ? Welding engineers at NASA's Marshall Space Flight Center in Huntsville, Ala., have had an extremely busy winter assembling adapters that will connect the Orion spacecraft to a Delta IV rocket for the initial test flight of Orion in 2014. The adapter later will attach Orion to NASA's Space Launch System (SLS), a new heavy-lift rocket managed and in development at the Marshall Center that will enable missions farther into space than ever before. The 2014 Orion Exploration Flight Test-1 (EFT-1) will provide engineers with important data about the adapter's performance before it is flown on SLS beginning in 2017.

In a high bay of Marshall's Building 4755, expert welders using state-of-the-art friction stir welding machines worked on two separate adapters. For each adapter, a vertical welding machine stitched panels together to form a conical cylinder, then a circumferential welding machine attached a thicker, structural support ring at the top and the bottom.

"While the adapters are identical and are considered flight articles, only one will actually be used for EFT-1," said Brent Gaddes, Spacecraft & Payload Integration Subsystem manager. "The other will undergo strenuous structural testing to ensure quality, while its twin will make the trip to NASA's Kennedy Space Center in Florida for integration into the rest of the test vehicle for launch."

United Launch Alliance (ULA), which makes the Delta IV rocket in nearby Decatur, Ala., will deliver a full-size section of the rocket later this spring for engineers to test the fit of the adapter.

"You really don't have the tools and the resources in one place anywhere else in the world," said Justin Littell, a mechanical engineer with the welding group at the Marshall Center. "The work that we do here is exciting and I get to work with a great team. It's amazing."

See the friction stir welds in action in this video: http://www.nasa.gov/multimedia/videogallery/index.html?media_id=161317831

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The above story is reprinted from materials provided by NASA. The original article was written by Bill Hubscher, NASA's Marshall Space Flight Center.

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


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Source: http://feeds.sciencedaily.com/~r/sciencedaily/space_time/nasa/~3/fMGSIAD7__Q/130327114133.htm

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2014 Camaro Z28: Iconic muscle car makes a comeback

2014 Camaro Z28 will be faster and lighter than a standard Camaro and designed to hit the racetrack. The 2014 Camaro Z28 will be the first Z28 sold in over a decade by Chevy.?

By Tom Krisher,?AP Auto writer / March 28, 2013

A 2014 Camaro Z28 is displayed on stage during an unveiling at the New York International Auto Show in New York, March 27, 2013

Lucas Jackson/Reuters/File

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The dream car of every 1970s teenage boy is making a comeback.

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Chevrolet is reviving the Z/28?Camaro?as a lighter, high-performance version of the muscle car. The Z/28, which debuted in 1967 and was last sold in 2002, has been reengineered for 2014 at 3,800 pounds, about 100 pounds lighter than a standard?Camaro. It's designed so that it can hit the racetrack, with the Corvette's powerful V-8 engine and bigger brakes. To shed weight, it forgoes some standard comforts, coming with a one-speaker radio, stiffer seats and manual transmission only.

"We really wanted to try to get rid of some of the mass and make it a real enthusiasts' car to be able to use for spirited driving on the street and open track days," said Mark Stielow, performance engineering manager for the Z/28.

Air conditioning is optional and there's less sound insulation. Brake rotors are made of carbon and ceramics instead of heavier steel. It's more aerodynamic than a standard?Camaro, and the suspension is even stiffer than the ZL1, another high-performance version.

"The whole car has been just kind of tauted up. It's kind of a more performance style car," Stielow said.

Even with the changes, he says the car still handles bumpy roads well, though not as well as a standard?Camaro.

Engineers also freshened up the?Camaro's?profile for 2014, reshaping the front and rear to make it more modern and athletic looking.

Alan Batey, General Motors' U.S. sales chief, said the company doesn't expect to sell a lot of Z/28s, but the car does bring back some of the brand's heritage from days when it dominated U.S. roads.

"You don't do this because of how many you're going to sell. You do this because of the statement it can make and the way it can build the brand," he said.

Here are some highlights of the 2014 Z/28:

UNDER THE HOOD: 7-liter (427-cubic-inch) V-8 from the Corvette that puts out more than 500 horsepower. GM wouldn't reveal a zero to 60 mph time. Six-speed manual transmission with close gear range.

OUTSIDE: Fender flares over the wheels to reduce wind drag. Extended panels at the bottom of the doors and a rear spoiler also improve aerodynamics.

INSIDE: New matte-metallic finish on the trim. Flat-bottomed steering wheel, standard Recaro seats that are more supportive for the race track. Front seats don't have power adjustments in order to save weight. Rear seats also were modified to cut pounds.

FUEL ECONOMY: Not disclosed. Likely to be less than the current?Camaro?with a manual transmission and 6.2-liter V-8, which gets 14 mpg in the city and 19 on the highway.

PRICE: Also not released. Available late in 2013. Current?Camaro?SS with a V-8 starts at $31,635.

CHEERS: Harkens back to the glory days of Chevrolet. Will be fast and fun to drive.

JEERS: Ride likely will be harsher and noisier than the standard?Camaro.

Source: http://rss.csmonitor.com/~r/feeds/csm/~3/vduwyXTKXDA/2014-Camaro-Z28-Iconic-muscle-car-makes-a-comeback

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Sea Hare Squirts Sticky, Sense-Blinding Ink At Predatory Lobster (VIDEO)

By Matt Soniak

Sea hares don't look like they can put up much of a fight, but these bunny-eared slug cousins can really knock you senseless. When disturbed, sea hares (genus Aplysia) release a dark purple cloud that's made up of ink and a sticky, milky mix of chemicals called opaline.

Today in The Journal of Experimental Biology, researchers show that the opaline in the ink cloud not only frightens and distract predators, but also interferes with their sensory organs and blocks their chemical receptors.

To find its desensitizing secret, the scientists dabbed opaline extracts onto the antennae of spiny lobsters, which will hunt the hares when less well-defended prey is hard to come by. They then blasted some shrimp-scented water into the lobsters' tanks and watched how their chemosensory cells reacted to the smell of food.

They found that opaline's sticky components alone could significantly decrease the cellular activity, suggesting that opaline strikes predators chemically "blind" by gumming up their chemical senses.

See more videos.

Video Credit: Paul M. Johnson

ScienceNOW, the daily online news service of the journal Science.

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Source: http://www.huffingtonpost.com/2013/03/28/sea-hare-video-lobster-ink_n_2970520.html

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Thursday, March 28, 2013

C. African Republic rebel leader faces challenges

DAKAR, Senegal (AP) ? Michel Djotodia showed up for peace talks a few months ago in camouflage and a turban as the face of Central African Republic's rebel movement. Now he has traded those fatigues for a suit as the country's new self-declared leader after overthrowing the president of a decade.

Djotodia, whose diverse resume includes studying in the former Soviet Union and working as a consul in Sudan's region of Darfur, initially signed on in January to serve as the defense minister in a unity government with his longtime nemesis, then President Francois Bozize.

But that power-sharing deal quickly fell apart. Only two months later, Djotodia's forces invaded the capital, and he declared himself president of the impoverished but mineral-rich country for at least the next three years.

Although Djotodia (pronounced joe-toe-DEE-uh) emerged as the dominant leader of the alliance of rag-tag fighters known as Seleka, which means alliance in the local Sango language, some of his colleagues are already saying they never intended for him to single-handedly lead the country after Bozize's ouster.

"We didn't battle to get rid of one dictator only to have another," says Nelson N'Djadder, a Paris-based rebel leader who is now threatening to fight Djotodia for leadership of a nation long plagued by coups and rebellions.

Djotodia, a 60-something longtime rebel, was once a civil servant under Bozize's predecessor and worked at the Central African Republic's consulate in Nyala, located in Sudan's South Darfur state. Recent developments come as little surprise to some observers.

"He has single-mindedly always wanted to be president of Central African Republic. He has been a tremendously ambitious man," said Alex Vines, head of the Africa program at Chatham House, a London-based institute on international affairs.

"In the end he had one vision, which was to take power and he has done that unconstitutionally now," Vines added.

Among a wide field of potential rebel leaders, he managed to position himself front and center, said Louisa Lombard, a postdoctoral fellow at the University of California, Berkeley who has been traveling to Central African Republic for the past 10 years for research.

"I think he's mostly been successful through his diplomacy and negotiating alliances with different people and getting them on his side," she said. "It's a combination of being in the right place and having the right ambitions."

Djotodia hails from the country's northeastern Vakaga area, the poorest region of one of the world's most deeply impoverished countries. Analysts say he married and had children while living in the Soviet Union, and speaks fluent Russian and French.

By 2006 he had helped form the Union of Democratic Forces for Unity, known by its French acronym UFDR. His rebels sparked alarm when they seized the capitals of two northern provinces that year.

While the UFDR at the time "claimed to be fighting for greater government investment in the neglected northeast," its leaders seemed more interested in getting well-paying jobs within Bozize's government as part of a cease-fire agreement, according to a report by the International Crisis Group.

Djotodia later fled into exile in Benin in 2006 along with his colleague Abakar Saboune, where they were ultimately arrested and thrown into prison on international arrest warrants. He was released in 2008 at the request of the Central African Republic government, according to human rights groups.

It's not exactly clear where he was or what he was doing immediately after his release in Benin but after returning home, Djotodia spearheaded a rebel alliance that made partners out of sworn enemies.

His return to Central African Republic appears to have been a key factor in sparking the Seleka rebellion in December, say analysts and observers.

In an interview with Jeune Afrique magazine published the same week Bozize was overthrown, Bozize said he suspected foreign involvement in the rebellion.

"Six months before the launching of this rebellion, I sent a delegation to meet with (Djotodia) in his home city of Gordil," Bozize recalled. "He declared that he was in favor of peace and respecting the demobilization agreements. So I was quite surprised to see him launch this regrettable venture. Was he activated by external forces? It's probable."

Djotodia is believed to have cultivated ties with Chadian rebels while working in Sudan a decade ago. Those possible ties to elements in other countries and the shaky alliance between other fighters in the Seleka coalition could prove challenging, said Berkeley analyst Lombard: "I think it's likely that we'll see some struggles for control and power in the weeks to come."

___

Associated Press writer Angela Charlton in Paris contributed to this report.

Source: http://news.yahoo.com/c-african-republic-rebel-leader-faces-challenges-085648877.html

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EBay targets Gross Merchandise Value of $110 billion in 2015

March 28 (Reuters) - Rory McIlroy, playing for the first time since losing his world number one ranking earlier this week, got off to a shaky start at the Houston Open on Thursday where he dropped three shots over his opening eight holes. The 23-year-old Northern Irishman, who was replaced atop the world rankings by Tiger Woods this week, struggled to find his rhythm on an ideal day for low scoring at the Redstone Golf Club in Humble, Texas. He bogeyed the par-four second hole and made a double-bogey seven on the eighth hole to limp to the turn at three-over. ...

Source: http://news.yahoo.com/ebay-targets-gross-merchandise-value-110-billion-2015-195151702--sector.html

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The Truth Behind the 'Biggest Cyberattack in History'

Is it "the biggest cyberattack in history"? Or just routine flak that network-security providers face all the time?

News websites across the Western world proclaimed Internet Armageddon today (March 27), largely due to a New York Times story detailing a "squabble" between the spam-fighting vigilantes at Spamhaus and the dodgy Dutch Web-hosting company Cyberbunker.

"Fight Jams Internet," the Times headline said. "Global Internet slows," the BBC proclaimed in the wake of the Times' story. Both websites alleged that Netflix streaming was slowing down as a result.

The reality is less exciting, though still serious. The Internet disruptions, which were centered in Western Europe, appear to be largely over, and were largely unnoticed even when occurring.

But, if anything, the incident may prompt a fix for a basic security flaw in the Domain Name System that serves as one of the underpinnings of the Internet.

"Despite the work that has gone into making the Internet extremely resilient, these attacks underscore the fact that there are still some aspects of it that are relatively fragile," said Andrew Storms, director of security operations at San Francisco-based network-security provider nCircle.

Too much information

Cyberbunker appears to be behind a massive distributed denial-of-service (DDoS) attack that first tried to first take down Spamhaus, then Spamhaus' network-reliability provider CloudFlare, and finally this past Saturday (March 23) hit CloudFlare's own bandwidth providers in Europe.

Boston-based Akamai Networks told the Times, and Spamhaus told the BBC, that the last round of attacks peaked at 300 gigabits per second, possibly the largest amount of bandwidth ever recorded during a DDoS attack.

According to a CloudFlare blog posting, the attack was launched on March 18 and immediately involved a tactic called DNS amplification, in which unprotected Domain Name System (DNS) servers are used to flood targeted servers with huge amounts of useless information, tying up bandwidth and processing time.

The attacks increased in volume during the week, finally peaking on Saturday when, according to CloudFlare, half of the infrastructure on the London Internet Exchange, an Internet node connecting several large-scale networks, was tied up by the attack. (CloudFlare is based in Palo Alto, Calif., but runs a global network.)

DNS servers are essentially the phone books of the Internet. Every Internet-connected device, from your computer to your smartphone, uses them to match a website address that humans use, such as "www.technewsdaily.com," with an Internet Protocol address that computers and routers use, such as "207.86.128.60."

DNS servers are essential, yet many remain "open," which means they will accept lookup requests from anyone, not just their specified clients.

Attackers make lookup requests using the IP addresses of their targets, then request tons of information, which ends up flooding the targeted servers with huge amounts of DNS information.

[5 (Probably) American Cyberweapons]

Did two wrongs make a bigger wrong?

Spamhaus, a group of related companies based in London and Geneva, was started in 1998 to track and combat email spam and spammers. It maintains a blacklist of Web-hosting companies known to host spammers, and a whitelist of known "clean" Web hosts.

Both lists are used by Internet service providers around the world, and Spamhaus is partly responsible for the huge drop in email spam in recent years.

Some Web-hosting companies have complained they've been unfairly placed on the Spamhaus blacklist. Spammers have launched DDoS attacks against Spamhaus' website and servers. (There's even a "Stophaus" website based in Russia and dedicated to combating what it calls Spamhaus' "underhanded extortion tactics.")

It appears Cyberbunker has both complained and attacked.

Cyberbunker bases its operations in a decommissioned NATO bunker, built to withstand a nuclear war, in the southern Netherlands. The company was founded in 1998 by a group of hackers who proclaimed the "Republic of Cyberbunker," a sovereign state "surrounded by the Netherlands on all borders."

The company pledges not to ask questions about what its clients are up to.

"In most cases we have no idea as to who or where our customers actually are," the Cyberbunker site proclaims. "Customers are allowed to host any content they like, except child porn and anything related to terrorism. Everything else is fine."

Such a policy has attracted some unsavory clients, including the file-sharing site The Pirate Bay, and, according to Spamhaus, the cybercrime gang known as the Russian Business Network. Cyberbunker also claims to have been raided by a Dutch police SWAT team, which apparently found nothing incriminating on the premises.

It was Cyberbunker's alleged hosting of spammers that caused Spamhaus to place both Cyberbunker and its ISP on the Spamhaus blacklist in the fall of 2011.

As a result, Cyberbunker's ISP dropped it as a client, but both the ISP and Cyberbunker posted long manifestos about why Spamhaus was evil.

The issue seems to have lain dormant until March 18, when a false Anonymous campaign called "Operation Stophaus" was proclaimed on the online bulletin board Pastebin.

It listed a litany of complaints against the "tax-circumventing self-declared Internet terrorists" of Spamhaus, then added a variant of the Anonymous "We Are Legion" tagline.

That posting may have been cover for the DDoS attacks that began the same day. In a statement to the New York Times, Sven Olaf Kamphuis, who claimed to speak for Cyberbunker, and whose Google+ page gives his residence as "Republic Cyberbunker," affirmed that the Dutch hosting company was behind the attacks.

"Nobody ever deputized Spamhaus to determine what goes and does not go on the Internet," Kamphuis told the newspaper. "They worked themselves into that position by pretending to fight spam."

It's hard to see how such an attack can be legally justified. The Netherlands has famously lax laws governing the Internet and other digital communications, but odds are Cyberbunker will be facing another SWAT raid very soon.

Fixing a hole

For his blog posting, CloudFlare's Matthew Prince used the headline "The DDoS That Almost Broke the Internet." That's not entirely accurate, since the problems were rather localized.

However, the attack may prompt an overhaul of the DNS system. Prince and others have been vocal about the need to lock down most or all DNS servers so they no longer respond to lookup requests from anyone.

That move would go against the model of openness and accessibility that's guided the Internet for 40 years. The idea has always been that any Internet-connected device can reach any other using any path, and open DNS servers are essential to that model.

But the problem of DNS-amplified attacks has been growing exponentially in just the past few months.

The ongoing attacks against U.S. bank websites which began last September use the tactic, and have reached 100 Gbps at times.

If this week's unrelated attacks truly did hit 300 Gbps, the end to the open-DNS server model may be inevitable.

This story was provided by TechNewsDaily, a sister site to LiveScience. Follow Paul Wagenseil?@snd_wagenseil. Follow us?@TechNewsDaily,?Facebook?or?Google+.

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

Source: http://news.yahoo.com/truth-behind-biggest-cyberattack-history-210723787.html

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What?s new and what?s not for women in war? A Yahoo! News chat

By Steve Keating ORLANDO, Florida (Reuters) - Tiger Woods's renewed success has him back on top of the world rankings but questions thrown at him after Monday's triumph at Bay Hill were about something he has not done for a long time, win the Masters. While all signs point to Woods being close to his best after years of struggling with injuries, personal strife and a tedious swing overhaul, his comeback will not be complete in many minds, including his own, until he snaps a drought in the majors that dates back to the 2008 U.S. Open. ...

Source: http://news.yahoo.com/what%E2%80%99s-new-and-what%E2%80%99s-not-for-women-in-war--a-yahoo--news-chat-171220929.html

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The first thing they do, they?ll bankrupt the divorce lawyers! (Unqualified Offerings)

Share With Friends: Share on FacebookTweet ThisPost to Google-BuzzSend on GmailPost to Linked-InSubscribe to This Feed | Rss To Twitter | Politics - Top Stories News, RSS Feeds and Widgets via Feedzilla.

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Wednesday, March 27, 2013

After weight-loss surgery, new gut bacteria keep obesity away

By Sharon Begley

NEW YORK (Reuters) - The logic behind weight-loss surgery seems simple: rearrange the digestive tract so the stomach can hold less food and the food bypasses part of the small intestine, allowing fewer of a meal's calories to be absorbed. Bye-bye, obesity.

A study of lab mice, published on Wednesday, begs to differ. It concludes that one of the most common and effective forms of bariatric surgery, called Roux-en-Y gastric bypass, melts away pounds not - or not only - by re-routing the digestive tract, as long thought, but by changing the bacteria in the gut.

Or, in non-scientific terms, the surgery somehow replaces fattening microbes with slimming ones.

If that occurs in people, too, then the same bacteria-changing legerdemain achieved by gastric bypass might be accomplished without putting obese patients under the knife in an expensive and risky operation.

"These elegant experiments show that you can mimic the action of surgery with something less invasive," said Dr. Francesco Rubino of Catholic University in Rome and a pioneer in gastric-bypass surgery. "For instance, you might transfer bacteria or even manipulate the diet" to encourage slimming bacteria and squelch fattening kinds, said Rubino, who was not involved in the study.

FATTENING BUGS, SLIMMING BUGS

For many obese patients, particularly those with type 2 diabetes, gastric bypass has succeeded where nothing else has. Severely obese patients routinely lose 65 to 75 percent of their excess weight and fat after the operation, studies show, and leave their diabetes behind.

Oddly, however, the diabetes remission often occurs before significant weight loss. That has made bypass surgeons and weight-loss experts suspect that Roux-en-Y changes not only anatomy but also metabolism or the endocrine system. In other words, the surgery does something besides re-plumb the gut.

That "something," according to previous studies, includes altering the mix of trillions of microbes in the digestive tract. Not only are the "gut microbiota" different in lean people and obese people, but the mix of microbes changes after an obese patient undergoes gastric bypass and becomes more like the microbiota in lean people.

Researchers did not know, however, whether the microbial change was the cause or the effect of post-bypass weight loss.

That is what the new study, by researchers at Massachusetts General Hospital and Harvard University, set out to answer.

They first performed Roux-en-Y on obese mice. As expected, the animals quickly slimmed down, losing 29 percent of their weight and keeping it off, the researchers report in the journal Science Translational Medicine.

To make sure there was not something about the general experience of surgery, rather than gastric bypass specifically, that affected the animals, the scientists performed "sham" Roux-en-Y on other obese mice. In this procedure, the researchers made incisions as if they were going to do a gastric bypass, but instead connected everything up as nature had it.

The researchers then transferred gut microbiota from the Roux-en-Y mice to microbe-free obese mice. Result: the recipient mice lost weight and fat - no surgery required. Crucially, obese mice that received gut bugs from mice that had received sham Roux-en-Y, not the real thing, did not slim down.

It is the first experimental evidence that changes in the gut microbiota cause the weight loss after gastric bypass, and that the new, post-bypass mix of microbes can cause weight loss in animals that did not have surgery.

In particular, just a week after surgery the Roux-en-Y mice harbored relatively more of the same types of bacteria that become more abundant in people after gastric bypass and that lean people have naturally.

"The effects of gastric bypass are not just anatomical, as we thought," said Dr. Lee Kaplan, senior author of the study and associate professor of medicine at Harvard Medical School. "They're also physiological. Now we need to learn more about how the microbiota exert their effects."

Slimming bacteria work their magic in either of two ways, studies of gut microbiota show. They seem to raise metabolism, allowing people to burn off a 630-calorie chocolate chip muffin more easily.

They also extract fewer calories from the muffin in the first place. In contrast, fattening bacteria wrest every last calorie from food.

Transferring slimming bacteria into obese people might be one way to give them the benefits of weight-loss surgery without an operation. It might also be possible to devise a menu that encourages the proliferation of slimming bacteria and reduces the population of fattening bacteria.

Another new study found that figuring out whether you have slimming microbiota or fattening ones might be as easy as breathing.

In a study published on Tuesday in the online edition of the Journal of Clinical Endocrinology & Metabolism, researchers at Cedars-Sinai Medical Center in Los Angeles report that people whose breath has high concentrations of both hydrogen and methane gases are more likely to have a higher body mass index and higher percentage of body fat.

Methane is associated with bacteria called Methanobrevibacter smithii, which in overabundance may cause weight gain by extracting calories from food super-efficiently, Cedars' Ruchi Mathur, who led the study, said: "It could allow a person to harvest more calories from their food."

The breath test could provide a warning that someone is at risk of obesity because he harbors fattening microbiota.

It could also validate what many overweight people have long suspected: if their slim friends eat two slices of bacon-cheeseburger pizza the 600 calories go through them like celery, but if the overweight person indulges then every calorie seems to turn into more fat. People absorb different quantities of calories from the exact same food, thanks to their gut microbiota.

(Reporting by Sharon Begley)

Source: http://news.yahoo.com/weight-loss-surgery-gut-bacteria-keep-obesity-away-180108796.html

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Jared Leto Fan Mailed Him Their Ear As A Gift

Jared Leto Fan Mailed Him Their Ear As A Gift

Jared Leto's odd fan presentActor and 30 Seconds to Mars frontman Jared Leto has revealed his rather bizarre gift that he received in the mail from a fan. Leto received someone’s actual ear, which he began wearing as a necklace. Leto told XFM, “Someone cut their ear off once and sent it to me, that was very strange. A ...

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Source: http://stupidcelebrities.net/2013/03/jared-leto-fan-mailed-him-their-ear-as-a-gift/

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Gene therapy may aid failing hearts

Mar. 25, 2013 ? In an animal study, researchers at the University of Washington show that it was possible to use gene therapy to boost heart muscle function. The finding suggests that it might be possible to use this approach to treat patients whose hearts have been weakened by heart attacks and other heart conditions.

Led by University of Washington (UW) Professor and Vice Chair of Bioengineering Michael Regnier and Dr. Chuck Murry, director of the Center for Cardiovascular Biology and co-director of the Institute for Stem Cell and Regenerative Medicine at UW, the study appears online today in the journal Proceedings of the National Academy of Sciences (PNAS).

Normally, muscle contraction is powered by a molecule, the nucleotide called Adenosine-5'-triphosphate (ATP). Other naturally occurring nucleotides can also power muscle contraction, but, in most cases, they have proven to be less effective than ATP.

In an earlier study of isolated muscle, however, Regnier, Murry and colleagues had found that one naturally occurring molecule, called 2 deoxy-ATP (dATP), was actually more effective than ATP in powering muscle contraction, increasing both the speed and force of the contraction, at least over the short-term.

In the new PNAS study, the researchers wanted to see whether this effect could be sustained. To do this, they used genetic engineering to create a strain of mice whose cells produced higher-than-normal levels of an enzyme called Ribonucleotide Reductase, which converts the precursor of ATP, adenosine-5'-diphosphate or ADP, to dADP, which, in turn, is rapidly converted to dATP.

"This fundamental discovery, that dATP can act as a 'super-fuel' for the contractile machinery of the heart, or myofilaments, opens up the possibility to treat a variety of heart failure conditions," Regnier said. "An exciting aspect of this study and our ongoing work is that a relatively small increase in dATP in the heart cells has a big effect on heart performance."

The researchers found that increased production of the enzyme Ribonucleotide Reductase increased the concentration of dATP within heart cells approximately tenfold, and even though this level was still less than one to two percent of the cell's total pool of ATP, the increase led to a sustained improvement in heart muscle function, with the genetically engineered hearts contracting more quickly and with greater force.

"It looks as though we may have stumbled on an important pathway that nature uses to regulate heart contractility," Murry added. "The same pathway that heart cells use to make the building blocks for DNA during embryonic growth makes dATP to supercharge contraction when the adult heart is mechanically stressed."

Importantly, the elevated dATP effect was achieved without imposing additional metabolic demands on the cells, suggesting the modification would not harm the cell's functioning over the long-term.

The finding, the authors write, suggest that treatments that elevate dATP levels in heart cells may prove to be an effective treatment for heart failure.

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The above story is reprinted from materials provided by University of Washington - Health Sciences, via EurekAlert!, a service of AAAS.

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Journal Reference:

  1. Sarah G. Nowakowski, Stephen C. Kolwicz, Frederick Steven Korte, Zhaoxiong Luo, Jacqueline N. Robinson-Hamm, Jennifer L. Page, Frank Brozovich, Robert S. Weiss, Rong Tian, Charles E. Murry, and Michael Regnier. Transgenic overexpression of ribonucleotide reductase improves cardiac performance. PNAS, March 25, 2013 DOI: 10.1073/pnas.1220693110

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

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

Source: http://feeds.sciencedaily.com/~r/sciencedaily/most_popular/~3/F2dumpqeqr0/130326101618.htm

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Zynga Snags Analyst to Be VP of Finance - Mike Isaac - Social ...

atulbaggaAfter a string of high-level departures in 2012, it looks like Zynga is firming up its executive ranks.

The gaming company looks to have snapped up Atul Bagga, an analyst formerly of Lazard Capital Markets, to be the new VP of finance at Zynga, according to a recent change in Bagga?s LinkedIn profile.

Bagga will report to Mark Vranesh, who was appointed Zynga?s chief financial officer back in November of 2012, when former CFO Dave Wehner left the company to join Facebook.

Bagga seems a pretty natural fit at Zynga. He covered video games and Internet companies during his time at Lazard, and has been working as an analyst covering games, media and the digital space for close to 20 years. He has also got a finance background, with stints spent at ThinkEquity and brokerage firm Smith New Court (now a part of Merrill Lynch).

Bagga is a graduate of UC Berkeley?s Haas School of Business, and also holds advanced degrees from the University of Bombay and the National Institute of Technology in Allahabad, India.

Zynga confirmed to AllThingsD that Bagga joined the company.

The hire is one in a string of important appointments for Zynga, which continues to re-staff key positions after its series of executive defections at the end of 2012 and beginning of this year. In a high-level restructuring at the end of 2012, David Ko slid into the COO position while Barry Cottle became Zynga?s chief revenue officer. The company continues to trumpet its heavy focus on mobile going forward, attempting to diversify its game offerings outside of the Facebook platform.

It?s worth noting that apparently not all the departures have been stymied quite yet. Zynga CIO Debra Chrapaty announced Monday she would be leaving the gaming company to become CEO of Nirvanix, an enterprise cloud storage company.

Shares of Zynga were up 1.5 percent after regular trading on Monday afternoon at $3.46 per share.

Source: http://allthingsd.com/20130325/zynga-snags-analyst-to-be-vp-of-finance/

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Apparently UNC Thinks 'Rape Is Like Football'

Mar 26 (Reuters) - Leading money winners on the 2013 PGATour on Monday (U.S. unless stated): 1. Tiger Woods $3,787,600 2. Brandt Snedeker $2,859,920 3. Matt Kuchar $2,154,500 4. Steve Stricker $1,820,000 5. Phil Mickelson $1,650,260 6. Hunter Mahan $1,553,965 7. John Merrick $1,343,514 8. Dustin Johnson $1,330,507 9. Russell Henley $1,313,280 10. Kevin Streelman $1,310,343 11. Keegan Bradley $1,274,593 12. Charles Howell III $1,256,373 13. Michael Thompson $1,254,669 14. Brian Gay $1,171,721 15. Justin Rose $1,155,550 16. Jason Day $1,115,565 17. Chris Kirk $1,097,053 18. ...

Source: http://news.yahoo.com/apparently-unc-thinks-rape-football-160806724.html

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Video: Ford Did Not Approve Sexist Ads

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Source: http://www.nbcnews.com/video/cnbc/51324695/

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Tuesday, March 26, 2013

Travel Cheap With a Trunk That Transforms Into Its Own Hotel Room

If you're looking to explore the world on the cheap but the thought of sharing a hostel room with strangers creeps you out, designers Roberto De Luca and Antonio Scarponi have got you covered. The pair's Hotello is a rolling trunk that transforms into a 43 square foot hotel room complete with a bed, a desk, a lamp, a shelf, a locker, and even a privacy curtain. More »


Source: http://feeds.gawker.com/~r/gizmodo/full/~3/fvsuNS7JxY4/travel-cheap-with-a-trunk-that-transforms-into-its-own-hotel-room

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