বুধবার, ১০ এপ্রিল, ২০১৩

Through the obstacle course of immigration, many paths to citizenship

John Moore / Getty Images file

A woman takes the oath of allegiance during a naturalization ceremony in Newark, N.J., in January.

By Erin McClam, Staff Writer, NBC News

This is the first story in NBC News? series ?Immigration Nation,? an in-depth examination of immigration in America.

The talk about reforming the American immigration system has focused on getting 11 million undocumented workers on the path to citizenship. It?s a simple idea that obscures a thorny truth.

There is no single path to citizenship. There are hundreds.

Which path you take can depend on who your relatives are, whether you are safe in your homeland or how good you are at your job ? in the case of one Canadian burlesque dancer, whether you can prove that you twirl your tassels in a truly unique way.

Which path you take can depend on where you come from and how you?re trying to get here, on the whims of the federal government and on the laws of supply and demand.


You can set out on a path through your family or your job, as most immigrants do ? hitching your hopes to a citizen brother or sister, or to an employer willing to be a sponsor.

You can take up arms for what you hope will one day be your country. Or you can win the lottery: Up to 55,000 spots each year go to people who line up for hours in far-flung places like Bangladesh or Kazakhstan to enter a drawing and try their luck at a new life.

So what happens once you choose your path? There are at least 4.4 million people whose first-step visa petitions have been approved and are waiting for a green card that would grant them permanent residency, the vast majority trying to enter with help from relatives in the United States, according to the State Department.

But that hardly means the path to citizenship is clear. Any number of obstacles can block the way. You can fall in love with an American citizen and move to a different path. You can be kicked off the path. Or the path can shift on you.

John Moore / Getty Images

Nearly 700,000 immigrants take the step to U.S. citizenship each year. Meet some of those who have just become part of that select group: Americans.

That is what happened to Sergio Garcia of Mexico, who has been waiting 19 years.

His father, a retired California farm worker, sponsored him for an immigration visa in 1994. At that point, the father had a green card, and the son had crossed the border without documentation, in the back of a truck.

For Garcia, Nov. 18, 1994, is what is known in the system as a priority date. To would-be immigrants, it means everything. When enough of the backlog has been cleared and your date comes up, you can take the final steps toward a green card.

More than a decade ago, enough of the backlog had been cleared for Mexicans in his immigration category that the priority date was Nov. 12, 1994 ? just six days from his date.

Then the line jumped back three years, as it can when immigration officials work through a glut of cases. Since then, on the 15th of each month, Garcia has logged on to a State Department website to read the latest visa bulletin, to see whether he is any closer.

Garcia said that if he had known at the beginning that it would take two decades to get his green card, not the three to five years he was told, then he would have returned to Mexico.

NBCLatino.com

Click the graphic for a larger version (new window).

?It?s probably been a month or two since I last ended up crying, because sometimes this life does get to you,? he said. ?It?s not living, it?s surviving.?

The United States admits up to 675,000 immigrants legally each year, including up to 480,000 who are related to American citizens but are not spouses, minor children or parents, according to the Department of Homeland Security.

That figure includes 47,250 slots for each of the countries with the highest demand, including Mexico, the Philippines and India. Demand from these places far outstrips the supply of immigration slots.

From Mexico alone, the theoretical line is 1.3 million people long. If you are emigrating from the Philippines through a brother or sister who is a U.S. citizen, and you are getting your green card today, you got ?in line? about the time the Berlin Wall came down.

And the green card is only the first step, entitling you to a five-year wait for full citizenship. In the interim, you can be rejected for a variety of reasons, including bounced checks, clerical errors on your application or adultery.

NBCLatino.com

Click the graphic for a larger version (new window).

?The system is just way too complicated,? said Margaret Stock, an immigration lawyer from Alaska who has testified before Congress on the issue. ?It?s so complicated and difficult that people can?t absorb it. They think: There?s no way I can navigate that.?

You can pay to get on a path: 10,000 visas ? and ultimately green cards ? are reserved for foreign nationals who invest at least $500,000 in an American business, though the program has never reached that number in the two decades it has existed.

Some paths are shorter than others. Qualified immigrants who have temporary visas can join the military and become naturalized citizens as soon as the end of basic training. President George W. Bush expedited the military path after the Sept. 11 attacks.

And about one in 10 people legally admitted to this country every year is granted entry because of asylum or refugee status, and a one-year path to a green card, after proving a legitimate fear of persecution at home.

That happened to Parvaneh Vahidmanesh, who was in the United States on a visa when Iran was engulfed by violent protests after the disputed 2009 presidential election.

In an open letter in The Wall Street Journal addressed to Iran?s supreme leader, Vahidmanesh demanded to know why a bullet was the answer to peaceful cries of opposition. The United States deemed it too dangerous for her to return home.

NBCLatino.com

Click the graphic for a larger version (new window).

Vahidmanesh applied for asylum after the Journal letter was published, was granted asylum in September 2009, got a green card a year later and is waiting to become a citizen.

She said that she feels accepted in the United States, never like a foreigner or even a guest.

?Now, I have a future,? she said. ?Most important thing is freedom. I just feel freedom with all of my self here in the U.S. In Iran, I never felt that I am a free person.?

The immigration reform plan being devised in Washington, chiefly by four senators from each party, is expected to provide a means for the estimated 11 million who entered the United States illegally eventually to become citizens.

Precisely how is far from clear, as is whether the plan would include an unspecified ?trigger? requiring that the U.S.-Mexican border is declared secure before any citizenship program for the undocumented can begin.

It is also expected to include some kind of guest-worker program allowing low-skilled workers to remain in the United States.

Supporters of tighter immigration controls have concerns about both elements, but most acknowledge that the country needs far more clarity on who should and should not be eligible to become an American citizen.

Mario Anzuoni / Reuters file

Candidates wave U.S. flags during a naturalization ceremony to become citizens in Los Angeles in February.

Some advocates of a more permissive immigration system say that the central problem is that the United States does not issue nearly enough visas.

Even if the United States stopped approving new requests for family-based immigration visas today, it would take 19 years to clear the backlog of people waiting to join a relative in the United States, according to the Migration Policy Institute, a nonpartisan research center.

?We haven?t changed our legal immigration numbers since 1990,? said Mary Giovagnoli, director of the Immigration Policy Center, part of a Washington group that supports immigration. ?Think about the cellphone that they were carrying in ?The Wedding Singer.? Now think about your iPhone today.?

As Garcia waits for his priority date, his shot at citizenship, he figures there is no turning back. As strange is it may sound, he said, he believes that his father was right to encourage him to embark on the path to citizenship.

?I still think this country is a great country, and I think it will give me, in the end, a better future than I could have had in Mexico,? he said. ?I still truly believe in the American dream.?

Petra Cahill, Tracy Connor and Miranda Leitsinger of NBC News contributed to this report.

Source: http://feeds.nbcnews.com/c/35002/f/653381/s/2a9131ff/l/0Lusnews0Bnbcnews0N0C0Inews0C20A130C0A40C10A0C176755970Ethrough0Ethe0Eobstacle0Ecourse0Eof0Eimmigration0Emany0Epaths0Eto0Ecitizenship0Dlite/story01.htm

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'Bible' Satan Actor: Obama Link 'Nonsense,' But Good for Career

By Tim Molloy

NEW YORK (TheWrap.com) - Mehdi Ouazzani, the actor who played Satan in "The Bible," says his supposed resemblance to President Obama was "nonsense" -- but has helped raise his profile.

The Morrocan actor spoke to the Associated Press in Casablanca.

"For someone like me, a simple unknown actor, to find himself in a controversy like this - even though it's nonsense - it makes me known around the world, so it's something positive," he said, chuckling.

The AP said that with his "gray hair pulled back in a ponytail, an expressive face and a slim Errol Flynn-style pencil mustache," Ouazzani doesn't actually resemble Obama or a stereotypical devil.

The miniseries was a hit for History, and drew headlines worldwide because of the supposed resemblance between Satan and Obama. The network and producers Mark Burnett and Roma Downey said they never intended the resemblance.

Source: http://news.yahoo.com/bible-satan-actor-obama-nonsense-good-career-195136544.html

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Engadget Eurocast 022 - 04.09.13

Engadget Eurocast 022 - 04.09.13

It's a very weird venn diagram that has early adopters, lazy millionaires and a trio of our European editors at the heart of it, but that's where we find this week's show. Steve talks about the new cameras and displays that's been shown off at NAB, Mat dreams up the future of retail and Dan? Let's just say that he's feeling a little more miffed than usual.

Hosts: Dan Cooper, Steve Dent, Mat Smith

Producer: James Trew

Hear the Podcast

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Source: http://www.engadget.com/2013/04/10/engadget-eurocast-022-04-09-13/

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Google Play Store 4.0 redesign rolling out to Android phones and tablets today

DNP Google Play Store 40 redesign rolling out to Android phones and tablets today

Would news of an upcoming Google Play Store redesign completely blindside you? Of course not, but it's great to see it come to fruition sooner rather than later. The oft-whispered 4.0 update has now been officially acknowledged by Google and is ready for digital distribution starting today. What exactly is fresh and exciting about the new look? According to a blog post written by Play group product manager Michael Siliski, it focuses on bigger images, grouping together similarly themed content and offering new recommendations as you move down the page. Checkout has also been simplified just a tad. The update will be available for any phone or tablet running Android 2.2 or better, and it will begin rolling out today worldwide -- with such a hefty drain on Google's servers, however, the company warns that it may be a few weeks before it arrives on your particular device.

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Source: Android Blog

Source: http://www.engadget.com/2013/04/09/google-play-store-4-0-redesign-rolling-out-to-android-phones-and/

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মঙ্গলবার, ৯ এপ্রিল, ২০১৩

Autism in black and white: NIH grant helps scientist study disorder in African Americans

Autism in black and white: NIH grant helps scientist study disorder in African Americans [ Back to EurekAlert! ] Public release date: 8-Apr-2013
[ | E-mail | Share Share ]

Contact: Mark Wheeler
mwheeler@mednet.ucla.edu
310-794-2265
University of California - Los Angeles

The National Institutes of Health has awarded Dr. Daniel Geschwind, director of the UCLA Center for Autism Research and Treatment, a five-year, $10 million grant to continue his research on the genetic causes of autism spectrum disorders and to expand his investigations to include the genetics of autism in African Americans.

The new network grant, which will fund collaborative work by Geschwind and experts at other autism centers around the country, is part of the NIH's Autism Centers of Excellence program, which was launched in 2007 to support coordinated research into the causes of autism spectrum disorders (ASD) and the discovery of new treatments.

Autism spectrum disorders are complex developmental disorders that affect how a person behaves, interacts with others, communicates and learns. According to the Centers for Disease Control, ASD affects approximately one in 88 children in the U.S.

Geschwind's award will allow him to build on his earlier work identifying genetic variants associated with an increased susceptibility to autism while adding an important new emphasis. The research network he leads which also includes scientists from the Albert Einstein College of Medicine, Emory University, Johns Hopkins University, Washington University and Yale University aims to recruit at least 600 African American families who have a child diagnosed with an ASD for genetic testing.

While nearly all previous research on the genetics of autism has focused on subjects of European descent rather than those of African or other ancestries, it is critical to study different populations to understand if current genetic findings in ASD can be generalized to a broader population, said Geschwind, a professor of neurology, psychiatry and genetics.

To that end, he will look for gene variants associated with autism in Americans with African ancestry and then test the genetic risk factors identified in European populations to see what role they may play in the disorder in people of African descent.

Because individuals are typically a mix of different ancestries, the research group will use statistical methods that enable them to identify chromosomal markers for different ancestral origins. Genetic data generated by the study will be made available through the Internet to the larger research community.

The work will also include an evaluation of disparities in the diagnosis of autism and in access to care. The scientists will be carrying out this study with UCLA as the hub.

The award to Geschwind follows on the heels of several large ACE awards to various researchers at UCLA's Center for Autism Research and Treatment (CART) last September. At that time, CART was the only NIH Autism Center of Excellence in the nation to be awarded renewed funding for the next five years. The funding to CART supports ongoing research focused on examining genes' link to behavior, developing clinical interventions for those severely affected by autism, and explaining why autism affects more boys than girls.

This network grant will help further the work of CART, in conjunction with other UCLA programs in autism by enabling scientists to approach the study of ASD from both a research and clinical perspective. Together, these ACE grants aim to foster new ways to diagnose patients earlier and tailor treatments to each individual to create the best outcomes.

###

CART and the UCLA Department of Psychiatry and Biobehavioral Sciences are part of the Semel Institute for Neuroscience and Human Behavior, a world leading, interdisciplinary research and education institute devoted to the understanding of complex human behavior and the causes and consequences of neuropsychiatric disorders. The UCLA Department of Neurology, with over 100 faculty members, encompasses more than 20 disease-related research programs, along with large clinical and teaching programs. These programs cover brain mapping and neuroimaging, movement disorders, Alzheimer's disease, multiple sclerosis, neurogenetics, nerve and muscle disorders, epilepsy, neuro-oncology, neurotology, neuropsychology, headaches and migraines, neurorehabilitation, and neurovascular disorders.

For more news, visit the UCLA Newsroom and follow us on Twitter.


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AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


Autism in black and white: NIH grant helps scientist study disorder in African Americans [ Back to EurekAlert! ] Public release date: 8-Apr-2013
[ | E-mail | Share Share ]

Contact: Mark Wheeler
mwheeler@mednet.ucla.edu
310-794-2265
University of California - Los Angeles

The National Institutes of Health has awarded Dr. Daniel Geschwind, director of the UCLA Center for Autism Research and Treatment, a five-year, $10 million grant to continue his research on the genetic causes of autism spectrum disorders and to expand his investigations to include the genetics of autism in African Americans.

The new network grant, which will fund collaborative work by Geschwind and experts at other autism centers around the country, is part of the NIH's Autism Centers of Excellence program, which was launched in 2007 to support coordinated research into the causes of autism spectrum disorders (ASD) and the discovery of new treatments.

Autism spectrum disorders are complex developmental disorders that affect how a person behaves, interacts with others, communicates and learns. According to the Centers for Disease Control, ASD affects approximately one in 88 children in the U.S.

Geschwind's award will allow him to build on his earlier work identifying genetic variants associated with an increased susceptibility to autism while adding an important new emphasis. The research network he leads which also includes scientists from the Albert Einstein College of Medicine, Emory University, Johns Hopkins University, Washington University and Yale University aims to recruit at least 600 African American families who have a child diagnosed with an ASD for genetic testing.

While nearly all previous research on the genetics of autism has focused on subjects of European descent rather than those of African or other ancestries, it is critical to study different populations to understand if current genetic findings in ASD can be generalized to a broader population, said Geschwind, a professor of neurology, psychiatry and genetics.

To that end, he will look for gene variants associated with autism in Americans with African ancestry and then test the genetic risk factors identified in European populations to see what role they may play in the disorder in people of African descent.

Because individuals are typically a mix of different ancestries, the research group will use statistical methods that enable them to identify chromosomal markers for different ancestral origins. Genetic data generated by the study will be made available through the Internet to the larger research community.

The work will also include an evaluation of disparities in the diagnosis of autism and in access to care. The scientists will be carrying out this study with UCLA as the hub.

The award to Geschwind follows on the heels of several large ACE awards to various researchers at UCLA's Center for Autism Research and Treatment (CART) last September. At that time, CART was the only NIH Autism Center of Excellence in the nation to be awarded renewed funding for the next five years. The funding to CART supports ongoing research focused on examining genes' link to behavior, developing clinical interventions for those severely affected by autism, and explaining why autism affects more boys than girls.

This network grant will help further the work of CART, in conjunction with other UCLA programs in autism by enabling scientists to approach the study of ASD from both a research and clinical perspective. Together, these ACE grants aim to foster new ways to diagnose patients earlier and tailor treatments to each individual to create the best outcomes.

###

CART and the UCLA Department of Psychiatry and Biobehavioral Sciences are part of the Semel Institute for Neuroscience and Human Behavior, a world leading, interdisciplinary research and education institute devoted to the understanding of complex human behavior and the causes and consequences of neuropsychiatric disorders. The UCLA Department of Neurology, with over 100 faculty members, encompasses more than 20 disease-related research programs, along with large clinical and teaching programs. These programs cover brain mapping and neuroimaging, movement disorders, Alzheimer's disease, multiple sclerosis, neurogenetics, nerve and muscle disorders, epilepsy, neuro-oncology, neurotology, neuropsychology, headaches and migraines, neurorehabilitation, and neurovascular disorders.

For more news, visit the UCLA Newsroom and follow us on Twitter.


[ Back to EurekAlert! ] [ | E-mail | Share Share ]

?


AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


Source: http://www.eurekalert.org/pub_releases/2013-04/uoc--aib040813.php

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NKorea recalling workers from jointly run factory

SEOUL, South Korea (AP) ? North Korea said Monday it will suspend operations at a factory complex it has jointly run with South Korea, pulling out more than 53,000 North Korean workers and moving closer to severing its last economic link with its rival as tensions escalate.

The Kaesong industrial complex just north of the Demilitarized Zone is the biggest employer in North Korea's third-largest city. Shutting it down, even temporarily, would show that the destitute country is willing to hurt its own economy to display its anger with South Korea and the United States.

Pyongyang's move follows weeks of threatening rhetoric and provocations aimed at Seoul and its U.S. ally following U.N. sanctions punishing the North for its third nuclear test, on Feb. 12. In recent days there have also been signs in Seoul pointing to an even larger provocation from Pyongyang, including another possible nuclear test or rocket launch.

The point of the threats and possible future provocations, analysts say, isn't a full-scale war, which North Korea would certainly lose. It's seen instead as an effort to force new, Pyongyang-friendly policies in South Korea and Washington and to boost domestic loyalty for Kim Jong Un, the country's young, still relatively untested new leader.

The statement about Kaesong came from Kim Yang Gon, secretary of a key decision-making body, the Central Committee of the Workers' Party of Korea. It did not say what would happen to the 475 South Korean managers still at the Kaesong industrial complex. The statement also did not say whether the North Korean workers would be recalled immediately, and a South Korean manager at Kaesong said he had heard nothing from the North Korean government.

"North Korean workers left work at 6 o'clock today as they usually do. We'll know tomorrow whether they will come to work," said the manager, who declined to be identified because he was not allowed to speak to media. North Korea had asked South Korean managers to say when they intended to leave by Wednesday; the manager said he did not know whether he and his South Korean colleagues now will be forced to leave.

Members of South Korea's Unification Ministry, which is responsible for relations with the North, were meeting Monday to discuss the South Korean managers' status but had yet to issue a statement.

The Kaesong complex is the last remaining symbol of inter-Korean rapprochement projects. Other cooperation projects such as reunions of families separated by war and tours to a scenic North Korean mountain became stalled amid confrontation between the rival Koreas in recent years.

The complex combines cheap North Korean labor and South Korean know-how and technology. It is the last remaining inter-Korean rapprochement project from previous eras of cooperation.

North Korea previously cut the communications with South Korea that had helped regulate border crossings, and last week barred South Korean workers and cargo from entering North Korea. Operations continued and South Koreans already at Kaesong were allowed to stay, but dwindling personnel and supplies had forced about a dozen of the more than 120 companies operating at Kaesong to close by Sunday.

North Koreans attend a rally held to gather their willingness for a victory in a possible war against the United States and South Korea in Nampo, North Korea, April 3, 2013 in this picture released by... more? North Koreans attend a rally held to gather their willingness for a victory in a possible war against the United States and South Korea in Nampo, North Korea, April 3, 2013 in this picture released by the North's official KCNA news agency in Pyongyang on Wednesday. REUTERS/KCNA (NORTH KOREA - Tags: POLITICS MILITARY) ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A RVICE TO CLIENTS. NO THIRD PARTY SALES. NOT FOR USE BY REUTERS THIRD PARTY DISTRIBUTORS less? ?

"The zone is now in the grip of a serious crisis," Kim, the party secretary, said in remarks carried by the Korean Central News Agency. He said it "has been reduced to a theater of confrontation with fellow countrymen and military provocation, quite contrary to its original nature and mission."

"It is a tragedy that the industrial zone which should serve purposes of national reconciliation, unity, peace and reunification has been reduced to a theatre of confrontation between compatriots and war against the North," said Kim, who visited the complex Monday.

Kaesong is a rare source of foreign cash for North Korea. South Korea's Unification Ministry estimates 53,000 North Korean workers in Kaesong received $80 million in salary in 2012, an average of $127 a month.

North Korea objects to portrayals in the South of the zone being crucial to the impoverished country's finances. Kim said North Korea "gets few economic benefits from the zone while the south side largely benefits from it."

South Korea's finance minister, Hyun Oh-seok, said Monday that it is "quite ridiculous" for North Korea to be closing the border at Kaesong. "North Korea has nothing to gain from these kinds of things," he said at a news briefing.

Hyun said the government is looking at ways to help Kaesong firms.

A South Korean worker in Kaesong reached by the Associated Press on the phone said she did not know if North Korean workers would come to work Tuesday. She also said she didn't know when she would return to the South.

"Everyone left work (for their living quarters at Kaesong) before we heard the news from North Korea," she said. She spoke on condition of anonymity because she was not allowed to speak to reporters without authorization.

Daemyung Blue Jeans Inc., which does business in Kaesong, has not received any news from North Korea, CEO Choi Dongjin said. He said he heard news of the withdrawal on TV. He said he was trying to get in touch with his managers in Kaesong and hadn't spoken with them since Monday morning.

"We have seven (South Korean) workers in Kaesong. We don't know what to do about them," Choi, who is in Seoul, said by phone.

North Korea has unnerved the international community by orchestrating an escalating campaign of bombast in recent weeks. It has threatened to fire nuclear missiles at the U.S. and claimed it had scrapped the 1953 armistice that ended fighting in the Korean War.

Last week it told foreign diplomats based in Pyongyang that it will not be able to guarantee their safety as of Wednesday. Embassy workers appeared to be staying put as of Monday but foreign ministries around the world were continuing to evaluate the situation.

North Korea has found itself increasingly isolated. China, its most important ally, drafted the U.N. sanctions with the U.S. and expressed unusual disappointment when Pyongyang announced last week that it was restarting a plutonium reactor to produce more nuclear-bomb fuel.

Russian President Vladimir Putin, during a visit to Germany, praised the U.S. for postponing a missile test in California that had been set for this week, in the name of lowering tensions. Putin said at a press conference that a conflict on the Korean Peninsula would make the nuclear disaster at Chernobyl "look like a children's story."

The North's threats against the United States are widely dismissed as hyperbole. North Korea is believed to have a handful of relatively crude nuclear weapons, but analysts say they've seen no evidence it can build a warhead small enough to put on a missile that could hit the U.S. mainland. A direct attack on the U.S. or its allies would result in retaliation that would threaten the existence of the ruling Kim family in Pyongyang, but there are fears the North could launch a smaller-scale attack.

Another possibility is a fourth nuclear test, or a missile test.

The South Korean defense minister said Thursday that North Korea had moved a missile with "considerable range" to its east coast, possibly to conduct a test launch. His description suggests that the missile could be a Musudan missile, capable ? on paper at least ? of striking American bases in Guam with its estimated range of up to 4,000 kilometers (2,490 miles).

Pyongyang's warning to diplomats prompted South Korean President Park Geun-hye's national security director to say Sunday that North Korea may be planning a missile launch or another provocation around Wednesday, according to presidential spokeswoman Kim Haing.

During a meeting with other South Korean officials, the official, Kim Jang-Soo, also said the notice to diplomats and other recent North Korean actions are an attempt to stoke security concerns and to force South Korea and the U.S. to offer a dialogue. Washington and Seoul want North Korea to resume the six-party nuclear talks ? which also include China, Russia and Japan ? that it abandoned in 2009.

The possibility of a fourth North Korean nuclear test has existed for some time. South Korea has long said the North prepared two tunnels for a nuclear test, but used only one Feb. 12.

Unification Minister Ryoo Kihl-jae generated confusion about South Korean intelligence on the issue Monday in a parliamentary session. When a lawmaker asked whether there was an indication of increased personnel and vehicles at the North's nuclear test site, Ryoo said "there is such an indication."

After Ryoo's initial comments, South Korean Defense Ministry spokesman Kim Min-seok said there are vehicle and personnel activities at the northeastern test site but they are seen as "usual" activities, not an "indication for a nuclear test." Kim said North Korea can conduct a nuclear test anytime if decides to do so.

The comments in a parliamentary session were recorded on video, but Ryoo later told lawmakers he couldn't remember making them and didn't mean to say them. He said he was "startled" by reports carrying his earlier comments.

___

AP Business Writer Youkyung Lee and AP researcher Zhao Liang in Beijing contributed to this report.

Source: http://news.yahoo.com/nkorea-recalling-workers-jointly-run-factory-083521300.html

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Tin nanocrystals for the battery of the future

Tin nanocrystals for the battery of the future [ Back to EurekAlert! ] Public release date: 8-Apr-2013
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Contact: Maksym Kovalenko
mvkovalenko@ethz.ch
41-446-334-156
ETH Zurich

This press release is available in German.

They provide power for electric cars, electric bicycles, Smartphones and laptops: nowadays, rechargeable lithium ion batteries are the storage media of choice when it comes to supplying a large amount of energy in a small space and lightweight. All over the world, scientists are currently researching a new generation of such batteries with an improved performance. Scientists headed by Maksym Kovalenko from the Laboratory of Inorganic Chemistry at ETH Zurich and Empa have now developed a nanomaterial which enables considerably more power to be stored in lithium ion batteries.

The nanomaterial is composed of tiny tin crystals, which are to be deployed at the minus pole of the batteries (anode). When charging the batteries, lithium ions are absorbed at this electrode; while discharging, they are released again (see box). "The more lithium ions the electrodes can absorb and release the better they can breathe, as it were the more energy can be stored in a battery," explains Kovalenko.

Uniform crystals

The element tin is ideal for this: every tin atom can absorb at least four lithium ions. However, the challenge is to deal with the volume change of tin electrodes: tin crystal becomes up to three times bigger if it absorbs a lot of lithium ions and shrinks again when it releases them back. The scientists thus resorted to nanotechnology: they produced the tiniest tin nanocrystals and embedded a large number of them in a porous, conductive permeable carbon matrix. Much like how a sponge can suck up water and release it again, an electrode constructed in this way can absorb lithium ions while charging and release them when discharging. If the electrode were made of a compact tin block, this would practically be impossible.

During the development of the nanomaterial, the issue of the ideal size for the nanocrystals arose, which also carries the challenge of producing uniform crystals. "The trick here was to separate the two basic steps in the formation of the crystals the formation of as small as a crystal nucleus as possible on the one hand and its subsequent growth on the other," explains Kovalenko. By influencing the time and temperature of the growth phase, the scientists were able to control the size of the crystals. "We are the first to produce such small tin crystals with such precision," says the scientist.

Larger cycle stability

Using uniform tin nanocrystals, carbon and binding agents, the scientists produced different test electrodes for batteries. "This enables twice as much power to be stored compared to conventional electrodes," says Kovalenko. The size of the nanocrystals did not affect the storage capacity during the initial charging and discharging cycle. After a few charging and discharging cycles, however, differences caused by the crystal size became apparent: batteries with ten-nanometre crystals in the electrodes were able to store considerably more energy than ones with twice the diameter. The scientists assume that the smaller crystals perform better because they can absorb and release lithium ions more effectively. "Ten-nanometre tin crystals thus seem to be just the ticket for lithium ion batteries," says Kovalenko.

As the scientists now know the ideal size for the tin nanocrystals, they would like to turn their attention to the remaining challenges of producing optimum tin electrodes in further research projects. These include the choice of the best possible carbon matrix and binding agent for the electrodes, and the electrodes' ideal microscopic structure. Moreover, an optimal and stable electrolyte liquid in which the lithium ions can travel back and forth between the two poles in the battery also needs to be selected. Ultimately, the production costs are also an issue, which the researchers are looking to reduce by testing which cost-effective base materials are suitable for electrode production. The aim is to prepare batteries with an increased energy storage capacity and lifespan for the market, including in collaboration with a Swiss industrial partner.

###


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Tin nanocrystals for the battery of the future [ Back to EurekAlert! ] Public release date: 8-Apr-2013
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Contact: Maksym Kovalenko
mvkovalenko@ethz.ch
41-446-334-156
ETH Zurich

This press release is available in German.

They provide power for electric cars, electric bicycles, Smartphones and laptops: nowadays, rechargeable lithium ion batteries are the storage media of choice when it comes to supplying a large amount of energy in a small space and lightweight. All over the world, scientists are currently researching a new generation of such batteries with an improved performance. Scientists headed by Maksym Kovalenko from the Laboratory of Inorganic Chemistry at ETH Zurich and Empa have now developed a nanomaterial which enables considerably more power to be stored in lithium ion batteries.

The nanomaterial is composed of tiny tin crystals, which are to be deployed at the minus pole of the batteries (anode). When charging the batteries, lithium ions are absorbed at this electrode; while discharging, they are released again (see box). "The more lithium ions the electrodes can absorb and release the better they can breathe, as it were the more energy can be stored in a battery," explains Kovalenko.

Uniform crystals

The element tin is ideal for this: every tin atom can absorb at least four lithium ions. However, the challenge is to deal with the volume change of tin electrodes: tin crystal becomes up to three times bigger if it absorbs a lot of lithium ions and shrinks again when it releases them back. The scientists thus resorted to nanotechnology: they produced the tiniest tin nanocrystals and embedded a large number of them in a porous, conductive permeable carbon matrix. Much like how a sponge can suck up water and release it again, an electrode constructed in this way can absorb lithium ions while charging and release them when discharging. If the electrode were made of a compact tin block, this would practically be impossible.

During the development of the nanomaterial, the issue of the ideal size for the nanocrystals arose, which also carries the challenge of producing uniform crystals. "The trick here was to separate the two basic steps in the formation of the crystals the formation of as small as a crystal nucleus as possible on the one hand and its subsequent growth on the other," explains Kovalenko. By influencing the time and temperature of the growth phase, the scientists were able to control the size of the crystals. "We are the first to produce such small tin crystals with such precision," says the scientist.

Larger cycle stability

Using uniform tin nanocrystals, carbon and binding agents, the scientists produced different test electrodes for batteries. "This enables twice as much power to be stored compared to conventional electrodes," says Kovalenko. The size of the nanocrystals did not affect the storage capacity during the initial charging and discharging cycle. After a few charging and discharging cycles, however, differences caused by the crystal size became apparent: batteries with ten-nanometre crystals in the electrodes were able to store considerably more energy than ones with twice the diameter. The scientists assume that the smaller crystals perform better because they can absorb and release lithium ions more effectively. "Ten-nanometre tin crystals thus seem to be just the ticket for lithium ion batteries," says Kovalenko.

As the scientists now know the ideal size for the tin nanocrystals, they would like to turn their attention to the remaining challenges of producing optimum tin electrodes in further research projects. These include the choice of the best possible carbon matrix and binding agent for the electrodes, and the electrodes' ideal microscopic structure. Moreover, an optimal and stable electrolyte liquid in which the lithium ions can travel back and forth between the two poles in the battery also needs to be selected. Ultimately, the production costs are also an issue, which the researchers are looking to reduce by testing which cost-effective base materials are suitable for electrode production. The aim is to prepare batteries with an increased energy storage capacity and lifespan for the market, including in collaboration with a Swiss industrial partner.

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Source: http://www.eurekalert.org/pub_releases/2013-04/ez-tnf040813.php

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