Thursday, January 31, 2013

Fuel of the future: Cheap hydrogen from water one step closer

Jan. 30, 2013 ? Hydro?gen has tremen?dous poten?tial as an eco-friendly fuel, but it is expen?sive to pro?duce. Now researchers at Prince?ton Uni?ver?sity and Rut?gers Uni?ver?sity have moved a step closer to har?ness?ing nature to pro?duce hydro?gen for us.

The team, led by Prince?ton chem?istry pro?fes?sor Annabella Sel?l?oni, takes inspi?ra?tion from bac?te?ria that make hydro?gen from water using enzymes called di-iron hydro?ge?nases. Selloni's team uses com?puter mod?els to fig?ure out how to incor?po?rate the magic of these enzymes into the design of prac?ti?cal syn?thetic cat?a?lysts that humans can use to pro?duce hydro?gen from water.

In this lat?est paper, Sel?l?oni and co-authors present a solu?tion to an issue that has dogged the field: the cat?a?lysts designed so far are sus?cep?ti?ble to poi?son?ing by the oxy?gen present dur?ing the reac?tion. By mak?ing changes to the cat?a?lyst to improve the sta?bil?ity of the struc?ture in water, the researchers found that they had also cre?ated a cat?a?lyst that is tol?er?ant to oxy?gen with?out sac?ri?fic?ing effi?ciency. What is more, their arti?fi?cial cat?a?lyst could be made from abun?dant and cheap com?po?nents, such as iron, indi?cat?ing that the cat?a?lyst could be a cost-effective way of pro?duc?ing hydrogen.

Sel?l?oni and her team con?ducted their research in sil?ico -- that is, using com?puter mod?el?ing. The goal is to learn enough about how these cat?a?lysts work to some?day cre?ate work?ing cat?a?lysts that can make vast quan?ti?ties of inex?pen?sive hydro?gen for use in vehi?cles and elec?tric?ity production.

The team included Patrick Hoi-Land Sit, an asso?ciate research scholar in chem?istry at Prince?ton; Roberto Car, Princeton's Ralph W. *31 Dornte Pro?fes?sor in Chem?istry, and Mor?rel H. Cohen, a Senior Chemist at Prince?ton and Mem?ber of the Grad?u?ate Fac?ulty of Rut?gers Uni?ver?sity. Sel?l?oni is Princeton's David B. Jones Pro?fes?sor of Chemistry.

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Story Source:

The above story is reprinted from materials provided by Princeton University. The original article was written by Cather?ine Zan?donella.

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


Journal Reference:

  1. P. H.- L. Sit, R. Car, M. H. Cohen, A. Selloni. Oxygen tolerance of an in silico-designed bioinspired hydrogen-evolving catalyst in water. Proceedings of the National Academy of Sciences, 2013; DOI: 10.1073/pnas.1215149110

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/~3/kTUyiY5Vwdg/130130184414.htm

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Utah Travel Headlines: Winter Boat, Sports and Travel Shows

During late winter, several consumer
trade shows take place the Salt
Lake City area, giving people a chance to learn about, test and
buy the latest products related to outdoor recreation, leisure living
and adventure travel. Here's a list of some of the major upcoming
shows. All will be held at South
Towne Expo Center, 9575 S. State Street, Sandy.

Source: http://www.travelheadlines.utah.com/2013/01/winter-boat-sports-and-travel-shows.html

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Wednesday, January 30, 2013

nop-commerce twitter and facebook integration

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Source: http://headprojects.donanza.com/go?u=http://www.donanza.com/jobs/p8064439-nop_commerce_twitter_and_facebook_integration?utm_source=headprojects.donanza.com&utm_medium=referral&utm_campaign=wltrk7522&s=donanza&r=&c=8064439&q2=&sr

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Tornadoes rip central, southeast U.S., at least one dead

(Reuters) - Severe weather hit the central and southeast United States on Wednesday, with tornadoes ripping through Mississippi, Indiana and Tennessee, killing at least one person.

The National Weather Service said twisters touched down in Sardis, Mississippi, and heavily damaged homes in Solsberry, Indiana, wiping out power in the surrounding areas. At least one tornado was reported in the mid-section of Tennessee.

In north Nashville, a man died when a tree fell on his garage apartment, according to Jeremy Heidt, spokesman for the Tennessee Emergency Management Agency.

"We have trees down all over the place," said Brittney Coleman, a meteorologist with the National Weather Service in Nashville.

Buildings and homes in nearby suburbs were damaged by the storm that cut a 4.6 mile-long path that was 150 yards wide through the center of Mt. Juliet, about 20 miles east of Nashville.

In Indiana, about 11,900 customers in center of the state were without electricity because of the storm, utilities said.

Piles of debris and downed power lines blocked roadways in Indiana, including State Road 45 in southwestern Monroe County and State Road 43, which was closed from Solsberry to Hendricksville.

Power outages and damaged homes were reported in at least 10 counties in Mississippi, mostly in the northern part of the state.

Forecasters said the violent weather was expected to barrel east throughout the day, bringing with it damaging winds of up to 70 miles per hour (113 km/h), hail and possibly more tornadoes.

The storms will drive down the morning's warmer temperatures with chillier air following in their wake, said meteorologist Dan Depodwin on Accuweather.com.

(Reporting by Susan Guyett in Indiana, Tim Ghianni in Tennessee, Emily Le Coz in Mississippi; Writing by Barbara Goldberg; Editing by Maureen Bavdek and David Gregorio)

Source: http://news.yahoo.com/twisters-mississippi-indiana-more-forecast-wednesday-152938895.html

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Detroit edges closer to bankruptcy filing

6 hrs.

DETROIT - At the Detroit Auto Show earlier this month, luxury was in the air. Pricey new Bentleys and Maseratis glittered - including a Maserati 2014 Quattroporte with a $132,000 price tag; U.S. Cabinet Secretaries and dignitaries rubbed shoulders; and many of the well-heeled attendees ponied up for a $300-a-ticket black-tie charity ball.

But in a city that is slowly dying, the glitz didn't extend much beyond the Cobo Center exhibition hall.?General Motors Co. and Chrysler, which along with Ford Motor Co. gave the Motor City its identity, survived near-death experiences after filing for bankruptcy during the financial crisis.?

Now, Detroit itself is edging closer to a similar precipice, only unlike the automakers, its chances of getting a federal bailout are almost nonexistent.

The story of Detroit's decline is decades old: Its tax revenue and population have shrunk and labor costs have remained out of whack. But the city's budget problems have deepened to such an extent that it could run out of cash in a matter of weeks or months and ultimately be forced into what would be the largest-ever Chapter 9 municipal bankruptcy filing in the United States.

Frustrated by the lack of concrete progress, Michigan Governor Rick Snyder, a Republican, last month appointed a team to scour the city's books. The audit could result in a state takeover of Detroit's finances through the appointment of an emergency financial manager. Such a manager, who would seize control of the city's checkbook, could then propose federal bankruptcy court as the best option.

Snyder, who has called the situation "a crisis in terms of financial affairs," said the team would deliver its report in February.

"Detroit is teetering on the verge of bankruptcy after the City Council has failed to make the necessary cuts to deal with having a smaller population," said Rick Jones, chairman of the Republican majority caucus in the state Senate.

Jones, who has indicated he does not favor a bankruptcy, said he would like to see an emergency manager installed to fix the city's problems. If that failed, there would be a case for finding a way to shrink the Detroit municipal area, he argued.

Detroit's population is now just over 700,000 - down 30 percent since 1990 - but the city still has to provide services to an area encompassing more land than San Francisco, Boston and the borough of Manhattan.

While Democratic Mayor Dave Bing and the Detroit City Council have moved to reduce spending and initiate some reforms to stave off a takeover, including layoffs and wage and benefit cuts, the progress may not be enough for Michigan officials and lawmakers.

Streets without lights
In the booming post-Second World War era, Detroit was America's fifth-largest city. Today, it ranks 18th. In addition to a sharp population decline, it suffers from high unemployment related to a loss of businesses, a flood of home foreclosures and a cut in state funding. That has led to shriveling revenue, leaving the city unable to afford a workforce of more than 10,000 and the surging health and pension costs that go with them and with its retirees. As a result, credit ratings on Detroit's approximately $8.2 billion of outstanding debt have sunk deeper into junk territory.

The city's labor costs, including health care and pensions, are shrinking in absolute terms but rising as a share of the budget. They are slated to drop to $968 million, or nearly 49.5 percent of the operating budget, in the fiscal year ending June 30 versus $1.14 billion, or 45.5 percent, a year earlier.

Signs of decline are everywhere - in a rising crime rate, streets without lights and block after block of abandoned buildings. The murder rate of one per 1,719 people last year was more than 11 times the rate in New York City. The jobless rate is above 18 percent, more than twice rate for the country as a whole.

A bankruptcy would be messy.

The interests of creditors would likely collide with those of labor unions wanting to protect workers' benefits, said Eric Scorsone, a Michigan State University economist who has written papers on municipal bankruptcy and on the state's emergency manager laws.

"It is going to require the players - the City Council, the mayor, the state - to be on the same page. If you go into bankruptcy with a lot of conflict and dissent, it's going to cost more," said Scorsone.

It could also be racially explosive. Detroit has the largest percentage of black people of any U.S. city, with 83 percent of the population identifying themselves as African American, black or Negro, according to the 2010 U.S. census. Most of Michigan's state government, including the governor's office, is run by white Republicans. ?

Detroit Council Member JoAnn Watson, who along with two other members of the city's all-black City Council has been resisting reform measures, said she is still hopeful of a federal bailout or an injection of state money that she claims the city is owed.

Mayor Bing would not comment for this story.

Consequences
The automakers have little to say publicly about the crisis. Most of their operations in Michigan are now outside Detroit, and getting any top executive to even discuss the possibility of a city bankruptcy was almost impossible at the auto show. "I don't want to get into the politics," said GM CEO Dan Akerson, while Chrysler CEO Sergio Marchionne said: "I don't see what the consequences would be for us."

One of the city's biggest challenges is its complex set of labor agreements with a whopping 48 bargaining units that represent most of the city's workforce.

Max Newman, a bankruptcy attorney at Michigan-based Butzel Long, said a Chapter 9 bankruptcy could help the city throw out its collective bargaining agreements with unions.

Costs would have to be tackled since Detroit cannot just jack up taxes to reduce the cumulative budget deficit, which grew to $326.6 million in fiscal 2012 from $196.6 million in fiscal 2011. The state would likely resist tax increases, and they might only make matters worse anyway. "If taxes go up any further it would exacerbate the flight out of the city," Newman said.

But for some of those who have seen Detroit struggle for years, bankruptcy is starting to look like the least awful option - even though it will be painful.

"I think...off and on, that it wouldn't be a bad idea," said former Ford chief financial officer Allan Gilmour, now the president of Detroit's Wayne State University. "Let's clean this out once and for all."

Additional reporting by Deepa Seetharaman and Paul Lienert in Detroit.

Copyright 2013 Thomson Reuters.

Source: http://www.nbcnews.com/business/stuck-reverse-detroit-edges-closer-bankruptcy-1C8149698

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Tuesday, January 29, 2013

Home Remodeling Platform Houzz Raises $35M Series C Round Led By NEA And GGV Capital, Launches Paid Pro+ Accounts

houzz logoHouzz is one of those Silicon Valley startups you don't hear all that much about, but the company is quickly disrupting the $300 billion home remodeling market by providing home owners with inspiration for their projects and connecting them with the designers, architects and contractors who can turn their ideas into reality. Today, Houzz announced that it has raised a $35 million Series C round led by New Enterprise Associates (NEA) and GGV Capital, with participation from Sequoia Capital, Comcast Ventures, Kleiner Perkins Caufield & Byers and Yammer founder David Sacks.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/ahrWt_lGNos/

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Nightclub inferno: Locked door trapped patrons?

A fire broke out early Sunday morning at a night club in Santa Maria, in southern Brazil, killing revelers ? many of them students. NBC's Mike Taibbi reports.

By Alastair Jamieson, Staff Writer, NBC News

Dozens of victims of a fast-moving nightclub inferno that claimed the lives of more than 230 people in southern Brazil were due to buried on Monday as reports emerged that fleeing patrons were blocked by a locked door.

About 50 funerals were expected to take place at the municipal cemetery in Santa Maria, according to Brazilian television news broadcast Zero Hora, while other bodies removed from the Kiss nightclub remained at the city?s gymnasium awaiting identification

The cemetery opened early, at 7.30 a.m. local time (4:30 a.m. ET), and was planning to conduct burials at half-hour intervals, O Globo reported, saying the army had helped dig graves.

The newspaper Diario de Santa Maria reported that a refrigerated truck was used to preserve some of the bodies overnight because local mortuary facilities were full.

The blaze began early Sunday when a band's small pyrotechnics show ignited foam sound-insulating material on the ceiling.

Yuri Weber / Agencia O Dia via Reuters

A view inside the blackened Boate Kiss nightclub in which at least 233 died.

The first images from inside the blackened building show the extent of the panic, with drinks and clothing scattered across the floor.

Many of the victims were under 20 years old, The Associated Press reported, and were attending a party organized by students from several academic departments from the Federal University of Santa Maria.

'Barrier of bodies'
The main door of the nightclub was locked at the time, fire chief Guido Pedroso de Melo told O Globo.

He added that firefighters responding to the blaze initially had trouble getting inside the nightclub because "there was a barrier of bodies blocking the entrance.?

Local authorities told Reuters that 120 men and 113 women died in the fire, and 92 people are still being treated in hospitals.

Survivors and the police inspector Marcelo Arigony said security guards briefly tried to block people from exiting the club, according to the AP, perhaps fearing that patrons would leave without paying their tab.

Marcelo Sayao / EPA

Relatives gather at the city gymnasium in Santa Maria, Brazil, to mourn victims from the 'Kiss' nightclub fire.

But Arigony said the guards didn't appear to block fleeing patrons for long. "It was chaotic and it doesn't seem to have been done in bad faith because several security guards also died," he told the AP.

In a radio interview, the band?s guitarist Rodrigo Martins said the fire began shortly after the band took to the stage at 2.15 a.m. local time Sunday.

"When the fire started, a guard passed us a fire extinguisher, the singer tried to use it but it wasn't working," he said, adding that the accordion player Danilo Jacques, 28, died, while the five other members made it out safely.

Reuters and The Associated Press contributed to this report.

?

Source: http://worldnews.nbcnews.com/_news/2013/01/28/16735889-blazing-nightclubs-main-door-was-locked-brazil-official-reportedly-says?lite

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Dick Van Dyke honored for lifetime achievement

LOS ANGELES (AP) ? He's acted, danced and sang his way through movies, television and the stage, making Dick Van Dyke an entertainment triple-threat long before Hollywood used such hyphenates.

The 87-year-old actor, best known for the 1960s hit comedy "The Dick Van Dyke Show" and Disney's big-screen musical "Mary Poppins," can now add lifetime achievement honoree. He added that honor to his resume at Sunday night's 19th annual Screen Actors Guild Awards.

"They tell me you never work again once you get this award," Van Dyke said on the red carpet. "I'll have to let them know I'm available."

His career has spanned eight decades, starting with work as a disc jockey and a standup comic in the late '40s. He even worked as a national television morning-show host, with no less than Walter Cronkite serving as his news anchor.

But perhaps Van Dyke's most critical career break came in 1960, when director Gower Champion hired him as the male lead opposite Chita Rivera in the new Broadway-bound stage musical "Bye Bye Birdie."

Van Dyke had no professional dance experience, and out-of-town tryouts did not go well. Nevertheless, Champion refused to fire the actor, who would go on to New York with Rivera and win a Tony award for his performance.

About a year later, Van Dyke was starring in his own sitcom, in the role of TV comedy writer Rob Petrie on "The Dick Van Dyke Show." Three prime-time Emmys for Van Dyke and more than 50 years later, the series remains revered by many critics as one of the earliest models of great workplace comedy.

"'The 'Dick Van Dyke Show' was the most fun I ever had and the most creative period of my life," he said on the red carpet.

During the series' run, Van Dyke also enjoyed big-screen hits, including the 1963 "Birdie" movie and the 1964 all-star comedy, "What a Way to Go!" But biggest of all was "Mary Poppins," in which he introduced the Oscar-winning song "Chim Chim Cher-ee."

"I'm world-famous for my Cockney accent," Van Dyke kidded in his acceptance speech. He has said his British-born co-star, Julie Andrews, told him he never got the accent right.

Last year, Van Dyke presented the same lifetime achievement honor to his former TV co-star, Mary Tyler Moore.

These days, Van Dyke sings with his vocal group, The Vantasix, and enjoys life with his wife of one year, makeup artist Arlene Silver. The couple met seven years ago at the SAG Awards.

Source: http://news.yahoo.com/dick-van-dyke-honored-lifetime-achievement-025510248.html

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Monday, January 28, 2013

Energy literacy: visualizing the impacts of unlimited growth

Humans have already amply demonstrated the resource limitations of unbridled economic growth by not anticipating and then not addressing the myriad critical environmental and resource problems we face today, Cobb writes.

By Kurt Cobb,?Guest blogger / January 28, 2013

Dark clouds of smoke and fire emerge as oil burns during a controlled fire in the Gulf of Mexico, following the April 2010 Deepwater Horizon explosion. Will we continue to accept the religion of unlimited economic growth and energy production, Cobb asks, until a remorseless nature enforces its limits upon us?

Mass Communication Specialist 2nd Class Justin Stumberg-US Navy/Reuters/Handout

Enlarge

It is hard to imagine a more unlikely vehicle for advancing energy literacy than a finely crafted large format picture book. Energy, after all, is invisible. We see its effects, but never the thing itself. And yet,?Energy: Overdevelopment and the Delusion of Endless Growth?succeeds and succeeds profoundly for it puts on display those effects so compellingly that the reader cannot help but turn the pages to see more.

Skip to next paragraph Resource Insights

Kurt Cobb?is the author of the peak-oil-themed thriller, 'Prelude,' and a columnist for the Paris-based science news site Scitizen.?He is a founding member of the Association for the Study of Peak Oil and Gas?USA, and he serves on the board of the Arthur Morgan Institute for Community Solutions. For more of his Resource Insights posts, click?here.

Recent posts

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Taken with the eye of the fine art photographer, the book?s images project a disturbing beauty. They seduce the viewer with their attention to composition, color, light, and perspective. This impels us to enter into these images and contemplate rather than merely visually consume an exploding offshore oil platform; a desolated landscape strewn with derelict drilling rigs; a decapitated mountain; a pelican coated with oil; a coal strip mine seen from its bottom; and a tar sands mine seen from the sky. Once drawn in, the viewer cannot help but feel the immensity and drama of the energy issues we now face. And, once drawn in, the viewer wants more images that will somehow explain this immense drama and its significance for each of us.

Leafing through the pages, you will be astonished at each successive image. Eventually, you will reach a substantial block of text. By then you will be more than ready for some explanation to put into words what all these images taken together might mean.

The essays that follow are penned by noted writers such as poet, novelist and farmer?Wendell Berry, climate change activist?Bill McKibben, and peak oil author?Richard Heinberg; by scientists such as climate scientistJames Hansen?and sustainable agriculture researcher?Wes Jackson; and by big-picture pragmatists such asPlan B?author?Lester Brown?and energy efficiency guru?Amory Lovins.?

Menace II Society 20 Year West Coast Mega-Mix By ... - DubCNN

27Jan
2013

Unbelievably 2013 marks the 20th?anniversary?of the release of the classic hood film Menace II Society.

The movie ? which was released on May 26th 1993 ? was the directorial debut of twin brothers Allen and Albert Hughes who had originally hired Tupac Shakur and Spice 1 to play?Sharif and Caine?respectively,?but they were later fired with Shakur being found guilty of assault and battery six months later for assaulting the director.

Despite pre-production controversy the film went on to?commercial and critical success, winning the Best Movie award at the?1994 MTV Movie Awards and becoming a point of reference across the past two decades.

This week a?Producer and DJ from Amsterdam namely?THEprinceOFbeatz?teamed up with?Daily Movement?to release a Westcoast Mega-Mix in celebration of this movie landmark!

The mix caught our ears and linked with the anniversary we wanted to share it with our readers! Listen to the full Mega-Mix?and check?the tracklist below!

THEprinceOFbeatz -?Menace II Society 20 Year West Coast Mega-Mix
?

Source: http://www.dubcnn.com/2013/01/27/menace-ii-society-20-year-west-coast-mega-mix-by-theprinceofbeatz/

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Fast Acid Reflux Treatment ? Jeff Martin's Heartburn No More Review

Fast Acid Reflux Treatment / Heartburn Treatment: your-health.co Why Is Heartburn No More The Best Selling Acid Reflux Book In Internet History, With Thousands Of Satisfied (And Now Heartburn Free) Users In 121 Countries Worldwide? Thousands of women and men of every age have completely cured their acid reflux condition and gained complete freedom from digestive disorders naturally, without drugs, antacids or ?magic potions,? simply by using the clinically proven, scientifically-accurate step by step method found inside this amazing heartburn freedom guidebook. Jeff Martin, a certified nutritionist, health consultant and author has not just pumped out yet another ?anti-reflux program? into an already over-saturated market. Jeff?s Heartburn No More can be more accurately described as a ?Acid Reflux Bible.? It is quite simply one of the most comprehensive, complete, and precise guides to acid reflux freedom you will ever read. The Heartburn No More book is quite extensive (150 pages of rock solid content) which focuses on 100% natural acid reflux treatment. That means there aren?t recommendations for harsh prescription drugs with nasty side effects. In the Heartburn No More core formula section (The 5 step system) ? Nothing is held back. In this section, Jeff gives a detailed overview of each step, and then dives into the specifics in a perfect chronological order. There are also outstanding charts and checklists which make it very easy to know where you are at in the ?

Source: YouTube

This entry was posted in Health Tutorials and tagged Health, Health Videos, Videos. Bookmark the permalink.

Source: http://health-ful-hints.com/2013/01/27/fast_acid_reflux_treatment_-_jeff_martins_heartburn_no_more_review/

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Sunday, January 27, 2013

Mr. Belding Pushes for Saved by the Bell Reunion

Source: http://www.thehollywoodgossip.com/2013/01/mr-belding-pushes-for-saved-by-the-bell-reunion/

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Holocaust archive reunites relatives after decades

Nearly 70 years after the end of the Second World War, a Holocaust archive in Germany is helping victims and survivors of Nazi atrocities to find clues about the past -- and is still reuniting families. NBC News' Andy Eckardt reports from Bad Arolsen, Germany.

By Andy Eckardt, Producer, NBC News

BAD AROLSEN, Germany -- Wilhelm Thiem may be 72 but he celebrated his first real birthday in November.

Abducted in Poland by Nazi troops at age two, Thiem has spent most of his life on a painful journey, seeking to discover his true name and identity.?

Until just a few months ago, the retired entrepreneur had not known his birth date, where he was born, what had happened to his mother or whether he had any other family members.

"I hardly knew anything about my personal history," Thiem said.?"I always felt like an outsider, it was a feeling of not belonging in this world."

Thiem was raised by a foster parent in northern Germany who was appointed by the Nazis to take care of the young child. Thiem called her "Mrs. Huebner" but was later officially adopted and given her maiden name.

At age 12, Thiem learned that Mrs. Huebner was not his real mother. He started asking her about his past, wanting to learn more about his family, but his questions remained unanswered. For decades, his personal history remained a mystery.

Early last year, Thiem came across a newspaper article about the International Tracing Service?(ITS), an organization that maintains a vast archive of files related to more than 17.5 million victims of the Holocaust and Nazi oppression.

"At first the ITS researchers told me that they could not find any documents with my name on them," Thiem recalled. "But then they contacted the Red Cross in Poland and in the end, there were some leads."

'Very emotional moment'
After several months of research, Thiem was informed that he had been born in Lodz, Poland, and that his birth name was Zbigniew Wilhelm Katmierczak.

For the first time in his life, Thiem held a birth certificate in his hands that gave him an identity.

"It was a very emotional moment," Thiem recalled. "Both my wife and I could not hold back tears."

Researchers revealed that his mother was also sent to Germany as a forced laborer but later returned to Poland. She eventually married a Frenchman and relocated to France.

Thiem was also told of a surviving aunt, who still lives in his Polish hometown.

He is now anxiously making plans for a trip to Lodz with his wife for a very special family reunion.

"I am hoping to learn more facts, maybe find other family members," Thiem said. "Maybe I can find traces of my mother and father.?All of this is of huge interest to me, it means so much."

Established by Allies in the final days of the Second World War and originally run by the Red Cross, the ITS helps to uncover the fates of Holocaust victims and others who suffered under the Nazi regime.

The archive in Bad Arolsen is said to be the largest storage facility of documents related to the Holocaust. It includes 30 million documents in 16 miles of shelves housing information about Holocaust survivors, displaced persons, slave laborers and political refugees from former Eastern Bloc countries.

Over the past 50 years, the ITS has answered more than 10 million requests. About 1,000 search requests continue to trickle in to the archive monthly.

"Many people still do not know what has become of their loved ones,"?said Dr. Ingeborg Berggreen-Merkel from Germany's federal commission of culture. "Even decades after the end of the Holocaust and the war, there is this persisting uncertainty, which results from the fact that part of one's own history remains untold."?

Visitors to the archive come into direct contact with the bureaucracy of mass murder.

Its meticulous records include concentration camp files, "deportation cards," patient records and a post-war index of non-German citizens. Its researchers plow through the stacks of yellowing paper, registering and scanning as many of the historic documents as possible. More than 95 percent have now been digitized.

But due to concerns about the victims' privacy, the ITS and the German government kept the files closed to the public for half a century. While search requests have been accepted since the end of the war, the archive was initially not "open source."

Following public pressure from survivor groups, historians and researchers, who called for public access to the archives, the ITS Commission -- consisting of 11 member states -- declared itself in favor of opening up Bad Arolsen in 1998.

Yet, scholars and researchers were only given access to the documents beginning in 2007.

"I think it was criminal that the documents were not opened up earlier," said Holocaust survivor and U.S. judge Thomas Buergenthal. He was able to find?records of his father's ordeal in the concentration camps of Auschwitz, Sachsenhausen and Buchenwald at Bad Arolsen.

"This archive is my father's only memorial, we have no other," Buergenthal added.

But although time has claimed many eyewitnesses, the archive is still helping to reunite survivors of Nazi terror -- such as Thiem and his long lost aunt. She remembers her nephew -- who is now an elderly man -- as a "little child."

"I spent a lifetime wondering who I really am, now I know," Thiem said.

Related:?

A retired teacher's courageous crusade: Tackling neo-Nazi hate

Despite dark past, young Israelis seek new lives in German capital

Warm glow of Berlin's 'beautiful' gas streetlights set to fade

Source: http://worldnews.nbcnews.com/_news/2013/01/26/16641847-holocaust-archive-rescues-lost-identities-reunites-family-after-decades?lite

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African leaders meet in Ethiopia amid Mali crisis

ADDIS ABABA, Ethiopia (AP) ? African leaders met in the Ethiopian capital Sunday for talks dominated by the conflict in Mali as well as lingering territorial issues between the two Sudans.

The African Union says it will deploy a force in Mali, where French troops are helping the Malian army to push back Islamist extremists whose rebellion threatens to divide the West African nation.

United Nations Secretary-General Ban Ki-moon is attending the two-day summit in Addis Ababa, where Ethiopian Prime Minister Hailemariam Desalegn took over from President Yayi Boni of Benin as chairperson of the African Union.

"We are determined to do what we can to help the people of Mali in their time of need," Ban said. "Humanitarian agencies are helping suffering civilians. The United Nations has also sent specialists on the military and political tracks. This is a moral imperative for all in the international community. I have presented to the Security Council my recommendation on the logistics support package for (the Mali force)."

With Mali at the top of the agenda, African leaders hope they can make quick progress in deploying a substantial number of African troops there. As the African leaders met, French special forces fighting alongside Malian troops were pushing farther north into the Malian desert in an offensive against al Qaida-linked Islamists who took control of northern Mali more than nine months ago.

Africa's economic boom is threatened by violent conflicts across the continent, African Union officials said at the summit.

"While we are proud of the progress made in expanding and consolidating peace and security on the continent, we also acknowledge that much still needs to be done to resolve ongoing, renewed and new conflict situations in a number of countries," said African Union Commission Chairperson Nkosazana Dlamini-Zuma.

Dlamini-Zuma said the Peace and Security Council of the African Union will report to the summit on efforts to resolve conflicts in countries ranging from Mali to Madagascar.

The Peace and Security Council of the African Union said in a statement Saturday that it wanted "the early operationalization of the African Standby Force" in Mali. The council also said it fully supports Mali President Dioncounda Traore but urged him to put in place a roadmap to free and fair elections. It also said the African Union is committed to preserving the unity of Mali and would "spare no efforts" to safeguard the country's territorial integrity.

A number of African countries have pledged to send troops to Mali, and on Tuesday the African Union will hold a conference of donors with hopes that money will be raised for the Mali force. The Peace and Security Council of the African Union urged member states to "seize the opportunity of the donors' conference ... to meaningfully contribute toward the mobilization of the necessary resources."

The council also urged the international community to contribute generously to the Mali force.

Meanwhile, the leaders of Sudan and South Sudan met at the summit in Addis Ababa, although African Union officials said they did not expect them to make much headway. South Sudan President Salva Kiir and Sudan President Omar al-Bashir earlier this month agreed to "the unconditional and speedy" implementation of deals they had reached back in September. But a subsequent meeting of the two countries' negotiating teams that should have outlined timetable for the deal's implementation ended in disagreement.

Ban urged the two Sudans to resume direct talks and spoke of the "dangerous humanitarian situation in Southern Kordofan and Blue Nile states."

"In Sudan and South Sudan the parties have taken positive steps to resolve outstanding issues," Ban said. "But they should make more progress in meeting their agreements."

Mediators led by former South African leader Thabo Mbeki have until July to push the two sides to agree on the status of the disputed Abyei region as well as other contested border areas.

Source: http://news.yahoo.com/african-leaders-meet-ethiopia-amid-mali-crisis-100222090.html

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Saturday, January 26, 2013

2013 Farmers Insurance Open scores: Tiger Woods leads at 11 ...

Tiger Woods tops the leader board of the 2013 Farmers Insurance Open at 11-under after shooting 65 Friday.

Tiger Woods leads the 2013 Farmers Insurance Open at 11-under par after shooting 7-under-par 65 in the rain in Friday's second round. Billy Horschel, who finished the round with a birdie to end the day, trails by two strokes. A pack of players, including Casey Wittenberg, Brad Fritsch, Eric Compton, Steve Marino, Jimmy Walker and Josh Teater are in a tie for third at 8-under. Woods finished Thursday's opening round with a 68.

Woods shot six birdies, an eagle and one bogie. His three-stroke lead makes him the obvious favorite heading into the final two rounds, however, he's not celebrating a win quite yet.

"We have a long way to go," Woods said. "It's a pretty tough course."

If Woods wins, it will be his seventh Farmers Insurance Open victory and his eighth time winning at Torrey Pines.

Phil Mickelson shot 71 on Friday and sits at 1-under, right above the projected cut line, and last year's winner, Brandt Snedeker sits at 4-under par.

Some of the players likely to be cut include Kevin Chappell (E), Scott Stallings (E), John Daly (2-over) and Keegan Bradley (2-over).

The third round begins on Saturday as the quest for the cup and a $6.1 million purse resumes.

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Source: http://www.sbnation.com/golf/2013/1/25/3916840/farmers-insurance-open-golf-2013-results-friday

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Synthetic corkscrew peptide kills antibiotic-resistant Gram-negative bacteria

Friday, January 25, 2013

An engineered peptide provides a new prototype for killing an entire category of resistant bacteria by shredding and dissolving their double-layered membranes, which are thought to protect those microbes from antibiotics.

The synthetic peptide was effective in lab experiments against antibiotic-resistant Gram-negative bacteria, which cause a variety of difficult-to-treat, potentially lethal infections such as pneumonia and sepsis.

The team led by scientists at The University of Texas MD Anderson Cancer Center reported its findings online in advance of print this week at the Proceedings of the National Academy of Science.

"The antibiotic pipeline against multidrug-resistant Gram-negative problem pathogens is a major unmet need in contemporary medicine; as such, our new antimicrobial agent holds immediate promise," said co-senior author Wadih Arap, M.D., professor in MD Anderson's Department of Genitourinary Medical Oncology and the David H. Koch Center.

Arap, Renata Pasqualini, Ph.D., also a co-senior author, professor in genitourinary medical oncology and the Koch center, and colleagues have previously constructed peptide combinations that are in development against cancer and white fat cells.

"The prototype introduced here as an antibiotic candidate has a unique mechanism of action and translational applications readily identified," Pasqualini said.

Gram-negative bacteria that are highly resistant to existing treatments include E. coli, Acinetobacter baumanii, Pseudomonas aeruginosa, and kebsiella pneumonia. These infections are often present in health care settings and most threatening to people with weakened immune systems.

The spiral peptide called KLAKLAKKLAKLAK acts against bacteria by puncturing their lipid bilayer membranes and has only low toxicity toward mammalian cells. These antimicrobial peptides, however, are subject to routine destruction by host enzymes or those generated by the microbe. Combating that effect by increasing the dose heightens both toxicity to other cells and cost.

D- KLAKLAKKLAKLAK destroys microbes, biofilms

Arap, Pasqualini and colleagues engineered a version of KLAKLAKKLAKLAK to use in their combination therapies but had not tested the peptide alone as an antibiotic.

The peptide is made of L-amino acids, the building blocks of life, which makes them vulnerable to destruction. The researchers synthesized a peptidomimetic ? a version of the peptide using D-amino acids with a reversed peptide sequence, making it more durable.

In a series of lab experiments, the researchers found that D-KLAKLAKKLAKLAK:

  • Kills a variety of strains of E. coli, A. baumanii and P. aeruginosa, including multi-drug resistant strains.
  • Works against Gram-negative bacteria at all phases of growth, including dormant cells that are prone to become resistant.
  • Causes dose-dependent damage to the bacterial membrane resulting in its dissipation and cell death.
  • Specifically disrupts lipids found in Gram-negative bacteria membranes while not affecting membranes in eukaryotic cells ? cells with the nucleus and other structures enclosed in separate membranes found in mammals and other non-microbial life.
  • Works in combination with the antibiotic piperacillin at lower doses to kill bacteria.
  • Eliminates biofilms, layers of combinations of microbes that adhere to surfaces and provide an ideal setting for bacterial growth.

Next step: Animal model experiments

Arap and Pasqualini note that developing D- KLAKLAKKLAKLAK as a drug will next require experiments in animal models of sepsis and other infections to further gauge the peptide's effectiveness and side effects.

In their cancer and anti-obesity research, the D-peptide is used with targeting agents to hit specific cells. Large preclinical studies in mice, rats and monkeys showed low toxicity at treatment-level concentrations. Their cancer drug in a first-in-human phase I clinical trial revealed side effects that were predictable, dose-dependent and reversible. Even so, toxicity may differ when it's used against bacterial infections.

The peptide was not effective against Gram-positive bacteria, which have thicker cell walls but are generally more vulnerable to antibiotics and the immune system than are Gram-negative bacteria. Gram-positive bacteria include those that cause anthrax, tuberculosis, strep throat and such treatment-resistant infections as Staphylococcus aureus.

Gram-negative bacteria, which have thinner membranes but are generally more resistant to antibiotics or immune system attack, also include those that cause typhoid fever, cholera, gonorrhea, syphilis and lyme disease.

###

University of Texas M. D. Anderson Cancer Center: http://www.mdanderson.org

Thanks to University of Texas M. D. Anderson Cancer Center for this article.

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

This press release has been viewed 47 time(s).

Source: http://www.labspaces.net/126451/Synthetic_corkscrew_peptide_kills_antibiotic_resistant_Gram_negative_bacteria

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Woman sues Match.com for $10M after attack

22 hrs.

A Las Vegas woman who was severely beaten by a man she met through Match.com is suing the online dating site for $10 million?two years and multiple surgeries after the attack that left her hospitalized for months.

The woman, Mary Kay Beckman, was stabbed multiple times with a butcher knife on Jan. 21, 2011?by?Wade Mitchell Ridley, and when?the knife broke, he stomped on her head. Ridley, who was sentenced to?28 to 70 years,?died in prison last year. He was also facing a murder charge in Arizona for the stabbing death of a former girlfriend a few weeks after the attack on Beckman.

Beckman filed suit in Clark County, Nevada,?accusing Match.com of negligence, negligent misrepresentation, deceptive trade, failure to warn and negligent infliction of emotional distress.

The site, she said, failed to warn her about the dangers of meeting "an individual whose intentions are not to find a mate, but to find victims to kill or rape."

The real estate agent said she joined Match.com about a month before her first in-person meeting with Ridley on Sept. 26, 2010. They dated for 10 days, but she called it off. That's when Ridley started sending her threatening and harassing messages.?

On Jan. 21, 2011, Ridley attacked Beckman in her garage, and left her for dead, she says, when she stopped making a "gurgling noise."?

Beckman, now 50, continues to recover and to speak out against online dating?"I do not believe that online dating is a safe venue for men or women,"?she?recently?told?a?local?FOX?TV?reporter.

Match.com, in a statement to NBC News Friday, said that what happened to Beckman "is horrible, but this lawsuit is absurd.?The many millions of people who have found love on Match.com and other online dating sites know how fulfilling it is. And while that doesn't make what happened in this case any less awful, this is about a sick, twisted individual with no prior criminal record, not an entire community of men and women looking to meet each other."

Safety, the site said, "is very important to Match," which, like many other online dating sites, includes online and offline tips for staying safe.

In California, Match.com and two other dating sites, eHarmony and Spark Networks, signed a joint statement of business principles, agreeing to screen for sex offenders and take other safety steps after a woman was assaulted on a date, the state attorney general's office said last March.?

The joint statement ?was prompted by the 2010 sexual assault of a Los Angeles-area woman by a man she met through Match.com, a spokeswoman for the state attorney general's office said. The woman sued Match.com, seeking a court order requiring the site to check applicants' backgrounds to weed out convicted sex offenders. She dropped the suit after the site provided proof of such screening.

Meanwhile, in the last two years, friends and work associates of Beckman have held fundraisers for her, including one last year, with information shared about it on YouTube (see video below).

Check out Technology, GadgetBox, Digital?Life and InGame on?Facebook,?and on?Twitter, follow Suzanne Choney.

Source: http://www.nbcnews.com/technology/technolog/woman-sues-match-com-10-million-after-brutal-attack-1C8119714

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Friday, January 25, 2013

There Are Some Battles Bezos Can't Win

Today's XKCD puts the success of Amazon.com into some perspective. Because I can't do any better than Randall Monroe's hilarious alt text: More »


Source: http://feeds.gawker.com/~r/gizmodo/full/~3/KtlzhF1hjzw/there-are-some-battles-bezos-cant-win

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Egypt: 4 killed in clashes in Suez Canal city

CAIRO (AP) ? Egypt's official news agency says the death toll has risen to four in clashes in the city of Suez between police and protesters on the second anniversary of the revolution that toppled Hosni Mubarak.

The agency quoted the head of the emergency ward at the Suez Canal's city's main hospital as saying five other people were being treated for gunshot wounds from Friday's clashes, raising the possibility of more fatalities.

Suez on Friday saw some of the worst clashes between police and protesters, who set ablaze a government building that once housed the city's local government.

The protests have been called by the liberal and secular opposition to denounce Islamist President Mohammed Morsi, who took office in June as the country's first freely elected civilian president.

Source: http://news.yahoo.com/egypt-4-killed-clashes-suez-canal-city-212156626.html

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Giovanna Plowman Tampon Video: Could This Be Real?!?

Source: http://www.thehollywoodgossip.com/2013/01/giovanna-plowman-tampon-video-could-this-be-real/

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Stock Investing, Feline Style | Gold News

Why cats make excellent money managers...

BRITAIN'S Observer newspaper's 2012 stock picking challenge was won by an unusual competitor: a cat called Orlando, writes Martin Hutchinson for Money Morning.

When I saw this, I wasn't surprised. Cats, unlike dogs, have the ideal abilities and temperament for stock selection.

The Observer set up its challenge with three competitors: a panel of three professional investment managers from top quality houses, a team of high school students, and Orlando. Pretty tough competition for the cat, one would think.

Yet at the end of the year, it wasn't even close.

Orlando had turned his 5,000 pounds into 5,542.60 pounds, the professional investment managers had turned theirs into 5,176 pounds and the high school students had managed to lose money, ending at 4,840 pounds, a sad commentary on the quality of modern British education.

By year's end, Orlando earned an 11.09% return, more than three times the 3.52% gains the professionals delivered.

Orlando's one difficulty was the cat/portfolio interface. He picked his stocks by throwing his toy mouse onto a grid containing code numbers for each company.

Of course, skeptics suggested that this added a random element to Orlando's investment selections, but that's nonsense ? anyone who has watched a cat juggling a toy mouse can observe that its activity involves a very high level of coordination, and is far from random.

Still, there's no question the cat/stock interface needs improvement, but here science should be able to help.

Just as Babel Fish and the like have enormously simplified the task of translating even obscure foreign languages, can anyone doubt that in just a few years they will be able to translate balance sheets and business plans into the meows, purrs and hisses necessary for quick feline comprehension?

This won't work for dogs, which have completely the wrong approach to life to ever be successful investors.

Dogs are herd animals, rushing madly in the same direction as the rest of the pack. Thus it was no surprise when it was recorded that there were many dogs making share applications in the Facebook IPO.

Dogs are also trusting, a hopeless personality trait for success on Wall Street.

Cats on the other hand are by nature contrarian, objecting strongly if other animals intrude into their chosen investment sector. Their inquisitiveness helps them find values in obscure corners of the market.

And their hatred of disruption and change helps them identify long-term value propositions, avoiding fly-by night losers.

Cats are also noted for their intense focus on regular feeding. For this reason they indignantly reject stocks that don't pay dividends. They also have no interest in companies that make large share buybacks, gorging their shareholders in good times, then come back begging for more capital in downturns.

The feline favorites are companies that have paid regular dividends for decades, ideally the "heirloom stocks" that have increased their payouts for 30, 40, or even 50 years.

Food that arrives with complete reliability and regularity for decades, the portions gradually increasing over the years, is a cats' dream, and their investment preferences reflect this. Studies will show you that this feline selection technique has substantially outperformed the market, in bull and bear periods, for decade after decade.

Clearly, the professional British investment managers could learn a lot from Orlando, and so can the rest of us.

Source: http://goldnews.bullionvault.com/feline-investing-012320136

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Thursday, January 24, 2013

Vietnam will make drug itself to execute prisoners

HANOI, Vietnam (AP) ? Vietnam will begin producing its own chemical for executing prisoners after factories in the European Union stopped shipments because of objections there to the death penalty.

Vietnam stopped using firing squads in 2011 because of concerns it was traumatizing the shooters. Last year, the government said it was unable to execute 532 on death row because it couldn't source the drugs for lethal injections.

The Laborer newspaper on Thursday quoted Minister of Public Security Tran Dai Quang as saying Vietnam will produce its own drug. The report gave no details.

EU factories are the main supplier of drugs that can be used in executions. Several American states have also said objections from European factories were making it hard to find the chemical.

Source: http://news.yahoo.com/vietnam-drug-itself-execute-prisoners-043647881.html

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Synchrotron infrared unveils a mysterious microbial community

Wednesday, January 23, 2013

In the fall of 2010, Hoi-Ying Holman of the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) was approached by an international team researching a mysterious microbial community discovered deep in cold sulfur springs in southern Germany.

"They told me what they were doing and said, 'We know what you contributed to the oil-spill research,'" recalls Holman, who heads the Chemical Ecology group in Berkeley Lab's Earth Sciences Division. "They wondered if I could help them determine the biochemistry of their microbe samples."

Holman had co-authored a report in Science about bacteria in the Gulf of Mexico that thrived on the Deepwater Horizon oil plume. Using infrared spectromicroscopy at the Berkeley Synchrotron Infrared Structural Biology (BSISB) facility, which she directs at the Advanced Light Source (ALS), Holman helped determine how the novel bug obtained energy by eating the spilled crude. No stranger to subsurface bioscience, Holman would soon add a new actor to her cast of remarkable microbes.

Not extreme, but weird anyway

The name Archaea means "ancient things," but Archaea were recognized as a distinct domain of life less than forty years ago. First thought to be exclusively extremophiles ? lovers of boiling hot springs, deep-sea black smokers, acid mine runoff, and other inhospitable environments ? more and more archaea are found thriving in moderate and cold environments, almost always as minority members of much larger microbial communities.

A unique exception to this pattern was discovered less than 10 years ago in the Sippenauer Moor in Germany. In microbial mats in this cold sulfur spring's outflow, the SM1 Euryarchaeon lives in roughly equal abundance with bacteria in a community that forms symbiotic "strings of pearls": the archaea fill the "pearls" and filamentous bacteria cover the pearl surfaces and form strings between them. The two kinds of microbes were assumed to be syntrophic ? dependent on each other for nourishment ? but the biochemical details were a mystery.

Christine Moissl-Eichinger of the University of Regensburg was among the SM1 Euryarchaeon's discoverers. Before long what she calls "another amazing lifestyle" of the new archaeon emerged; biofilms that grew deep below the surface of another cold sulfur spring, the nearby Muehlbacher Schwefelquelle. Moissl-Eichinger and her team collected samples of the slime-like biofilm ? which first seemed to be pure SM1 ? on net traps underwater.

To augment their already extensive research, Moissl-Eichinger and Alexander Probst of her staff brought the Regensburg samples to Berkeley Lab, initially attracted by the PhyloChip, a DNA microarray invented by Berkeley Lab's Gary Andersen and Todd DeSantis and their colleagues. Because the PhyloChip probes for the 16S rRNA gene, found in all Bacteria and Archaea, it can quickly and accurately sort through all known species in a sample ? including those, like SM1 and many other microorganisms, that can't be grown in culture.

Probst and DeSantis, both now with Second Genome, Inc., and Andersen were joined by Kasthuri Venkateswaran of the Jet Propulsion Laboratory, a member of NASA's Biotechnology and Planetary Protection Group. Probst wanted to know who was living where in the subsurface sulfur-spring samples; Venkateswaran's interest is understanding the role of Archaea in space and analogous sites. Although SM1 was by far the dominant species in the subsurface community, they found that small amounts of other archaea were present as well ? and about five percent of the community consisted of bacteria.

Bring on the synchrotron

Led by Andersen, the PhyloChip's inventors had contributed to the oil-spill research, and their previous association with Holman brought her and her BSISB colleagues aboard the SM1 research team.

"Lots of biochemical techniques can tell you what's in a sample ? lipids and carbohydrates, for example ? but just because they're there doesn't mean they interact," says Holman's colleague Giovanni Birarda, a member of the BSISB staff. "Synchrotron radiation?based Fourier-transform infrared spectromicroscopy ? SR-FTIR ? takes images and spectra of the same sample, so you can map the chemical relationships by combining the images with spectra that identify where the archaea and bacteria are."

Holman says, "The main difference is in their membrane lipids. Bacterial membrane lipids consist of fatty acids with long alkylic chains" ? functional groups of singly bonded carbon and hydrogen atoms ? "which have only one to two terminal methyl groups," groups with one carbon and three hydrogen. "By contrast, archaeal membrane lipids generally consist of branched and saturated isoprenes" ? a more complex common hydrocarbon ? "and are relatively less alkylic but have more methyl groups."

By revealing the bright spectral signals of alkylic and methyl groups, together with sulfur functional groups, synchrotron FTIR unambiguously identified the sulfate-reducing metabolic activity of the bacteria within the SM1 samples. The archaeal cells themselves showed no such activity, leading the researchers to posit a thriving mutual metabolism of the archaea and bacteria.

In many cases, such syntrophy requires close physical association. Covering the surface of each SM1 cell the researchers found spines made of three protein strands, equipped with terminal hooks where the strands divided. Moissl-Eichinger named them hami, Latin for barbs or hooks. These "nano-grappling hooks" apparently hold the microbial partners together, working in synchronization. The major hami protein is unlike any known proteinaceous archaeal or bacterial filaments.

How SM1 Euryarchaea interact with their bacterial partners may be a model for understanding other syntrophic relations essential to the carbon and sulfur cycles on which Earth's life depends. So far found in just two sites in Germany, the species is the only example yet of an archaeon that dominates a biological ecosystem ? but related species have been found in sulfur springs as far afield as Turkey and may be widespread.

DOE's Office of Science supported building and equipping the BSISB and also supports the ALS. For additional information, see below.

###

DOE/Lawrence Berkeley National Laboratory: http://www.lbl.gov

Thanks to DOE/Lawrence Berkeley National Laboratory for this article.

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

This press release has been viewed 39 time(s).

Source: http://www.labspaces.net/126397/Synchrotron_infrared_unveils_a_mysterious_microbial_community

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Wednesday, January 23, 2013

Just add water: How scientists are using silicon to produce hydrogen on demand

Jan. 22, 2013 ? Super-small particles of silicon react with water to produce hydrogen almost instantaneously, according to University at Buffalo researchers.

In a series of experiments, the scientists created spherical silicon particles about 10 nanometers in diameter. When combined with water, these particles reacted to form silicic acid (a nontoxic byproduct) and hydrogen -- a potential source of energy for fuel cells.

The reaction didn't require any light, heat or electricity, and also created hydrogen about 150 times faster than similar reactions using silicon particles 100 nanometers wide, and 1,000 times faster than bulk silicon, according to the study.

The findings appeared online in Nano Letters on Jan. 14. The scientists were able to verify that the hydrogen they made was relatively pure by testing it successfully in a small fuel cell that powered a fan.

"When it comes to splitting water to produce hydrogen, nanosized silicon may be better than more obvious choices that people have studied for a while, such as aluminum," said researcher Mark T. Swihart, UB professor of chemical and biological engineering and director of the university's Strategic Strength in Integrated Nanostructured Systems.

"With further development, this technology could form the basis of a 'just add water' approach to generating hydrogen on demand," said researcher Paras Prasad, executive director of UB's Institute for Lasers, Photonics and Biophotonics (ILPB) and a SUNY Distinguished Professor in UB's Departments of Chemistry, Physics, Electrical Engineering and Medicine. "The most practical application would be for portable energy sources."

Swihart and Prasad led the study, which was completed by UB scientists, some of whom have affiliations with Nanjing University in China or Korea University in South Korea. Folarin Erogbogbo, a research assistant professor in UB's ILPB and a UB PhD graduate, was first author.

The speed at which the 10-nanometer particles reacted with water surprised the researchers. In under a minute, these particles yielded more hydrogen than the 100-nanometer particles yielded in about 45 minutes. The maximum reaction rate for the 10-nanometer particles was about 150 times as fast.

Swihart said the discrepancy is due to geometry. As they react, the larger particles form nonspherical structures whose surfaces react with water less readily and less uniformly than the surfaces of the smaller, spherical particles, he said.

Though it takes significant energy and resources to produce the super-small silicon balls, the particles could help power portable devices in situations where water is available and portability is more important than low cost. Military operations and camping trips are two examples of such scenarios.

"It was previously unknown that we could generate hydrogen this rapidly from silicon, one of Earth's most abundant elements," Erogbogbo said. "Safe storage of hydrogen has been a difficult problem even though hydrogen is an excellent candidate for alternative energy, and one of the practical applications of our work would be supplying hydrogen for fuel cell power. It could be military vehicles or other portable applications that are near water."

"Perhaps instead of taking a gasoline or diesel generator and fuel tanks or large battery packs with me to the campsite (civilian or military) where water is available, I take a hydrogen fuel cell (much smaller and lighter than the generator) and some plastic cartridges of silicon nanopowder mixed with an activator," Swihart said, envisioning future applications. "Then I can power my satellite radio and telephone, GPS, laptop, lighting, etc. If I time things right, I might even be able to use excess heat generated from the reaction to warm up some water and make tea."

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Story Source:

The above story is reprinted from materials provided by University at Buffalo. The original article was written by Charlotte Hsu.

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


Journal Reference:

  1. Folarin Erogbogbo, Tao Lin, Phillip M. Tucciarone, Krystal M. LaJoie, Larry Lai, Gauri D. Patki, Paras N. Prasad, Mark T. Swihart. On-Demand Hydrogen Generation using Nanosilicon: Splitting Water without Light, Heat, or Electricity. Nano Letters, 2013; : 130117162526001 DOI: 10.1021/nl304680w

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

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

Source: http://feeds.sciencedaily.com/~r/sciencedaily/matter_energy/electricity/~3/UXDktS2gQZM/130122143224.htm

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Russia's Syria evacuation reflects doubts on Assad

A Free Syrian Army fighter runs for cover, as another fires his weapon during heavy clashes with government forces in Aleppo, Syria, Sunday, Jan. 20, 2013. The revolt against President Bashar Assad began in March 2011 with peaceful protests but morphed into a civil war that has killed more than 60,000 people, according to a recent United Nations recent estimate. (AP Photo/Andoni Lubaki)

A Free Syrian Army fighter runs for cover, as another fires his weapon during heavy clashes with government forces in Aleppo, Syria, Sunday, Jan. 20, 2013. The revolt against President Bashar Assad began in March 2011 with peaceful protests but morphed into a civil war that has killed more than 60,000 people, according to a recent United Nations recent estimate. (AP Photo/Andoni Lubaki)

In this citizen journalism image taken on Sunday, Jan. 20, 2013 and provided by Edlib News Network, ENN, which has been authenticated based on its contents and other AP reporting, relatives and mourners prepare to bury body of a Free Syrian Army fighter, Fouad Mohammed, who was injured during the battle of Taftanaz air base earlier this month, during his funeral, at Binsh village in Idlib province, north Syria. (AP Photo/Edlib News Network ENN)

(AP) ? The Kremlin's evacuation of Russians from Syria on Tuesday marks a turning point in its view of the civil war, representing increasing doubts about Bashar Assad's hold on power and a sober understanding that it has to start rescue efforts before it becomes too late.

The operation has been relatively small-scale ? involving fewer than 100 people, mostly women and children ? but it marks the beginning of what could soon turn into a risky and challenging operation. Analysts warn that rescuing tens of thousands of Russians from the war-stricken country could quickly become daunting as the opposition makes new advances in the battle against the Syrian president.

"It's a sign of distrust in Assad, who seems unlikely to hold on to power," said Alexei Malashenko, a Middle East expert with the Carnegie Endowment's Moscow office.

Russia has been Assad's main ally, pooling together with China at the United Nations to block international sanctions against his regime. But it has increasingly distanced itself from the Syrian ruler, signaling it is resigned to the prospect of him losing power.

On Tuesday, four buses carrying about 80 Russians, mainly women married to Syrians and their children, crossed into Lebanon, the first evacuation organized by Moscow since the start of the Syrian conflict nearly two years ago. Russia said a day earlier that about 100 of its citizens in Syria would be taken to Lebanon and flown home.

The land route was presumably chosen because of renewed fighting near the Damascus airport. The first of two planes sent to pick up the Russians took off late Tuesday from Beirut and landed shortly after 5 a.m. (0100 GMT) in Moscow.

The Emergencies Ministry, which sent the planes, said the passengers were being given medical examinations before leaving the airport. It was unclear if any of them had been injured in the fighting.

Malashenko said that the evacuation reflected a strong concern in Moscow that Assad's fall would put Russians in grave danger. "There is a strong likelihood that Assad's foes could unleash a massacre of those whom they see as his supporters," he said.

In addition to tens of thousands of Russians permanently living in Syria, most of whom are Russian women married to Syrian men and their children, there are also an unspecified number of diplomats and military advisers along with their families. The evacuees were permanent residents not connected to the embassy.

In Washington, State Department spokeswoman Victoria Nuland said the news of Russians leaving Syria "is not surprising and it speaks to the continued deterioration of the security situation and the violence that Assad is leading against his own people."

Asked about the government's faith in Assad, Nuland added: "If you look at the Russian public statements over the last month, they have been evolving somewhat in terms of the level of confidence in whether Assad was going to make it or whether Russia actually had an interest in that."

Georgy Mirsky, the top Middle East expert with the Institute for World Economy and International Relations, a government-funded think tank, warned that Russians in Syria are facing growing risks.

"Many are reluctant to leave, hoping that the situation could somehow stabilize," he said. "But Aleppo is already half-ruined, and it will soon come to that in Damascus too. Sooner or later, Assad is going to lose."

Russia could rely on Assad to provide a military escort for caravans of refugees, but such protection may not be reliable enough with the Syrian army's resources drained by the need to battle rebels all around the country.

Refugee convoys could make an easy target for the rebels when they try to move to neighboring Lebanon for a flight home. Direct Russian flights to Syrian airfields also would be a risky option with rebels possessing portable anti-aircraft missiles.

"That's why they sent the planes now without waiting until the 11th hour when rebels come close to victory," Mirsky said.

Alexander Golts, an independent Moscow-based military analyst, said that if Russia sees Assad's defeat as imminent, it would have to quickly organize a massive air bridge to take its citizens home. He said that such an effort would be extremely challenging and require sending troops to protect an air base in Syria that would be chosen for the evacuation to make sure that no rebels armed with anti-aircraft weapons are in close vicinity.

Even now, with Assad's forces in control of the area around Damascus, Russian planes flew to Beirut in a clear move to reduce security risks, Golts said.

A Russian navy squadron, currently in the Mediterranean, is scheduled to conduct maneuvers off Syria's shores later this month. It includes four landing ships capable of carrying several hundred marines and armored vehicles.

Golts said that that the marines on board the vessels could be deployed to protect an airfield in Syria if Moscow decides to launch a massive evacuation effort.

"Under the most favorable circumstances, it will be barely enough to take control of an air base and ensure its relative security," Golts said. Protecting the area around the base chosen for evacuation is essential to reduce risks posed by portable anti-aircraft missiles, which rebels already have used to down Syrian military aircraft.

The Russian government has given no signal that such an operation could be in the making.

Russian officials have said that both planes and navy ships could be involved in the evacuation of Russian citizens. Russia has a navy base in the Syrian port of Tartus, the only such outpost outside the former Soviet Union, which could be used for loading the evacuees on sea vessels.

Officials haven't given any indication yet that the landing vessels now in the Mediterranean could take any evacuees on board. And after the ships head home after the maneuvers, it would take weeks for another squadron to reach the Mediterranean.

A mass evacuation of Russians from Syria would face other logistical challenges.

The Russian Foreign Ministry has said that it has contingency plans to evacuate Russians, but it has admitted that only a few thousand of tens of thousands of Russians have left their contact details at the Russian consulate.

Golts said that if the escalating fighting forces Russians to flee Syria en masse, they will have to get to the planes themselves through the war-torn country. "It's hard to imagine how they could organize military protection for convoys," he said.

___

Bradley Klapper contributed to this report from Washington.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/cae69a7523db45408eeb2b3a98c0c9c5/Article_2013-01-22-Russia-Syrian%20Evacuation%20Challenges/id-c5760ee9f776402aa531954926c567d6

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