Monday, March 25, 2013

Kerry in Afghanistan to prod Karzai on future ties

Secretary of State John Kerry walks to a meeting with Afghan President Hamid Karzai at the Presidential Palace in Kabul, Monday, March 25, 2013. Kerry embarked on talks Monday with Karzai amid concerns Karzai may be jeopardizing progress in the war against extremism with his anti-American rhetoric. The session came shortly after the U.S. military ceded control of its last detention facility in Afghanistan, ending a longstanding irritant in relations. (AP Photo/Jason Reed, Pool)

Secretary of State John Kerry walks to a meeting with Afghan President Hamid Karzai at the Presidential Palace in Kabul, Monday, March 25, 2013. Kerry embarked on talks Monday with Karzai amid concerns Karzai may be jeopardizing progress in the war against extremism with his anti-American rhetoric. The session came shortly after the U.S. military ceded control of its last detention facility in Afghanistan, ending a longstanding irritant in relations. (AP Photo/Jason Reed, Pool)

Secretary of State John Kerry meets with Afghan President Hamid Karzai at the Presidential Palace in Kabul, Monday, March 25, 2013. Kerry embarked on talks Monday with Karzai amid concerns Karzai may be jeopardizing progress in the war against extremism with his anti-American rhetoric. The session came shortly after the U.S. military ceded control of its last detention facility in Afghanistan, ending a longstanding irritant in relations. (AP Photo/Jason Reed, Pool)

Afghan President Hamid Karzai walks in the grounds of the Presidential Palace in Kabul, Monday, March 25, 2013, before the arrival of Secretary of State John Kerry. Kerry embarked on talks Monday with Karzai amid concerns Karzai may be jeopardizing progress in the war against extremism with his anti-American rhetoric. The session came shortly after the U.S. military ceded control of its last detention facility in Afghanistan, ending a longstanding irritant in relations. (AP Photo/Jason Reed, Pool)

(AP) ? U.S. Secretary of State John Kerry embarked on talks Monday with Afghan President Hamid Karzai amid concerns Karzai may be jeopardizing progress in the war against extremism with his anti-American rhetoric. The session came shortly after the U.S. military ceded control of its last detention facility in Afghanistan, ending a longstanding irritant in relations.

During Kerry's 24-hour visit to the country ? his sixth since President Barack Obama became president but his first as Obama's secretary of State ? Kerry planned to meet with Karzai, civic leaders and others to discuss continued U.S. assistance to the country and how to wean it from such aid as the international military operation winds down, and upcoming national elections.

Karzai has infuriated U.S. officials by accusing Washington of colluding with Taliban insurgents to keep Afghanistan weak even as the Obama administration presses ahead with plans to hand off security responsibility to Afghan forces and end NATO's combat mission by the end of next year.

U.S. officials accompanying Kerry said he did not plan to lecture Karzai or dwell on the apparent animosity but would make clear once again that the U.S. did not take such allegations lightly, They said he would press Karzai on the need for the April 2014 elections to meet international standards and continue to stress the importance of Afghan reconciliation and U.S. support for a Taliban office in Qatar where talks could occur.

Karzai is expected to travel to Qatar within the week and some movement on the opening of an office is likely then.

Kerry, who arrived in Kabul from Amman, Jordan, had hoped also to travel to Pakistan on his trip to the region but put it off due to elections there. Instead, he met late Sunday in Amman with Pakistani army chief for Gen. Ashfaq Parvez Kayani, officials said.

The pair had a private dinner at the residence of the U.S. ambassador to Jordan as Pakistan continued to seethe in the aftermath of the return from exile to the country of former president Pervez Musharraf, himself a former army chief.

Earlier Monday, the U.S. military ceded control of the Parwan last detention facility near the U.S.-run Bagram military base north of Kabul, a year after the two sides initially agreed on the transfer. Karzai demanded control of Parwan as a matter of national sovereignty.

The top U.S. commander in Afghanistan, Gen. Joseph Dunford, handed over Parwan at a ceremony there after signing an agreement with Afghan Defense Minister Bismullah Khan Mohammadi. "This ceremony highlights an increasingly confident, capable and sovereign Afghanistan," Dunford said.

The dispute over the center threw a pall over the ongoing negotiations for a bilateral security agreement that would govern the presence of U.S. forces in Afghanistan after 2014.

An initial agreement to hand over Parwan was signed a year ago, but efforts to follow through on it constantly stumbled over American concerns that the Afghan government would release prisoners that it considered dangerous.

They have reason to worry. Zakir Qayyum ? a former Guantanamo detainee, was released into Afghan custody in 2007. He was freed four months later and rejoined the Taliban. He has reportedly risen to become the No. 2 in the Taliban.

A key hurdle was a ruling by an Afghan judicial panel holding that administrative detention, the practice of holding someone without formal charges, violated the country's laws. The U.S. argued that international law allowed administrative detentions and also argued that it could not risk the passage of some high-value detainees to the notoriously corrupt Afghan court system.

An initial deadline for the full handover passed last September and another earlier this month.

The detention center houses about 3,000 prisoners and the majority are already under Afghan control. The United States had not handed over about 100, and some of those under American authority do not have the right to a trial because the U.S. considers them part of an ongoing conflict.

There are also about three dozen non-Afghan detainees, including Pakistanis and other nationals that will remain in American hands. The exact number and nationality of those detainees has never been made public.

A new agreement, or memorandum of understanding, was signed at the ceremony by Dunford and Khan, but the U.S. military said it will not be made public. The agreement supplants one signed last March, which had been made public.

The U.S. military said in a statement that the new agreement "affirms their mutual commitment to the lawful and humane treatment of detainees and their intention to protect the people of Afghanistan and coalition forces," an apparent reference to the release of detainees deemed to be dangerous.

There are about 100,000 coalition troops in Afghanistan, including about 66,000 from the United States. American officials have made no final decision on how many troops might remain in Afghanistan after 2014, although they have said as many as many as 12,000 U.S. and coalition forces could remain.

The U.S. started to hold detainees at Bagram Air Field in early 2002. For several years, prisoners were kept at a former Soviet aircraft machine plant converted into a lockup.

In 2009, the U.S. opened a new detention facility next door. The number of detainees incarcerated at that prison, renamed the Parwan Detention Facility, went from about 1,100 in September 2010 to more than 3,000.

After Monday's handover, it was renamed the Afghan National Detention Facility at Parwan and the U.S. military said it would provide the Afghan army with advisers and $39 million in funding.

The United States has spent about a quarter of a billion dollars to build the Bagram facility along with Kabul's main prison located in the capital.

_____

Patrick Quinn in Kabul and Rahim Faiez in Bagram, Afghanistan contributed to this report.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/cae69a7523db45408eeb2b3a98c0c9c5/Article_2013-03-25-AS-Afghanistan-Kerry/id-fde07ea6a25040c0ba611ddafd1bea98

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Super batteries? Hybrid ribbons a gift for powerful batteries

Mar. 25, 2013 ? Hybrid ribbons of vanadium oxide (VO2) and graphene may accelerate the development of high-power lithium-ion batteries suitable for electric cars and other demanding applications.

The Rice University lab of materials scientist Pulickel Ajayan determined that the well-studied material is a superior cathode for batteries that could supply both high energy density and significant power density. The research appears online this month in the American Chemical Society journal Nano Letters.

The ribbons created at Rice are thousands of times thinner than a sheet of paper, yet have potential that far outweighs current materials for their ability to charge and discharge very quickly. Cathodes built into half-cells for testing at Rice fully charged and discharged in 20 seconds and retained more than 90 percent of their initial capacity after more than 1,000 cycles.

"This is the direction battery research is going, not only for something with high energy density but also high power density," Ajayan said. "It's somewhere between a battery and a supercapacitor."

The ribbons also have the advantage of using relatively abundant and cheap materials. "This is done through a very simple hydrothermal process, and I think it would be easily scalable to large quantities," he said.

Ajayan said vanadium oxide has long been considered a material with great potential, and in fact vanadium pentoxide has been used in lithium-ion batteries for its special structure and high capacity. But oxides are slow to charge and discharge, due to their low electrical conductivity. The high-conductivity graphene lattice that is literally baked in solves that problem nicely, he said, by serving as a speedy conduit for electrons and channels for ions.

The atom-thin graphene sheets bound to the crystals take up very little bulk. In the best samples made at Rice, fully 84 percent of the cathode's weight was the lithium-slurping VO2, which held 204 milliamp hours of energy per gram. The researchers, led by Rice graduate student Yongji Gong and lead author Shubin Yang, said they believe that to be among the best overall performance ever seen for lithium-ion battery electrodes.

"One challenge to production was controlling the conditions for the co-synthesis of VO2 ribbons with graphene," Yang said. The process involved suspending graphene oxide nanosheets with powdered vanadium pentoxide (layered vanadium oxide, with two atoms of vanadium and five of oxygen) in water and heating it in an autoclave for hours. The vanadium pentoxide was completely reduced to VO2, which crystallized into ribbons, while the graphene oxide was reduced to graphene, Yang said. The ribbons, with a web-like coating of graphene, were only about 10 nanometers thick, up to 600 nanometers wide and tens of micrometers in length.

"These ribbons were the building blocks of the three-dimensional architecture," Yang said. "This unique structure was favorable for the ultrafast diffusion of both lithium ions and electrons during charge and discharge processes. It was the key to the achievement of excellent electrochemical performance."

In testing the new material, Yang and Gong found its capacity for lithium storage remained stable after 200 cycles even at high temperatures (167 degrees Fahrenheit) at which other cathodes commonly decay, even at low charge-discharge rates.

"We think this is real progress in the development of cathode materials for high-power lithium-ion batteries," Ajayan said, suggesting the ribbons' ability to be dispersed in a solvent might make them suitable as a component in the paintable batteries developed in his lab.

Co-authors of the new paper are Rice graduate students Daniel Hashim and Lulu Ma; research scientist Zheng Liu; former Rice visiting researcher Liang Zhan, now an associate professor at East China University of Science and Technology in Shanghai; and faculty fellow Robert Vajtai. Ajayan is the Benjamin M. and Mary Greenwood Anderson Professor in Engineering and a professor of mechanical engineering and materials science, chemistry, and chemical and biomolecular engineering.

The work was funded by the U.S. Army Research Office and the Office of Naval Research through a Multidisciplinary University Research Initiative grant and a National Science Foundation Graduate Research Fellowship grant.

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The above story is reprinted from materials provided by Rice University. The original article was written by Mike Williams.

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


Journal Reference:

  1. Shubin Yang, Yongji Gong, Zheng Liu, Liang Zhan, Daniel P. Hashim, Lulu Ma, Robert Vajtai, Pulickel M. Ajayan. Bottom-up Approach toward Single-Crystalline VO2-Graphene Ribbons as Cathodes for Ultrafast Lithium Storage. Nano Letters, 2013; : 130314101516006 DOI: 10.1021/nl400001u

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/biochemistry/~3/MgNIdDGu0nc/130325125607.htm

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CyanogenMod founder leaves Samsung, praises the Galaxy S 4 on his way out

CyanogenMod founder leaves Samsung, praises the Galaxy S 4 on his way out

Less than two years after the CyanogenMod founder was scooped up by Samsung to improve Android's veneer, Steve Kondik has decided to depart for greener pastures. In a Google Plus posting, the software engineer shared his mostly positive impressions for Samsung's Galaxy S 4, casually mentioning that he'd departed the Korean behemoth's embrace. The one thing that came in for a bashing was TouchWiz's updated UI, that he says "feels like it has been sent back a few years in time to the Froyo days." Responding to a comment, Mr. Kondik said that nothing in particular had prompted his departure beyond a desire to "do something new," but given the man's pedigree, we can only assume it'll be somehow related to the little green droid that could.

[Image credit: Erica Joy]

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Source: Steve Kondik (Google Plus)

Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/1KW5NG1xWbU/

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Hundreds of gunmen attack Congo mining hub, at least five dead

KINSHASA (Reuters) - Hundreds of gunmen attacked official installations in Democratic Republic of Congo's southern mining hub of Lubumbashi before being repelled by soldiers, the government said on Saturday.

The attack on the capital of the central African nation's copper and cobalt-rich Katanga province began around 1 p.m. (10.00 a.m. ET) and targeted a military camp and the provincial governor's office, sending the city's residents fleeing home.

"They were driven out and suffered heavy losses among their ranks ... There were several hundred of them," Information Minister Lambert Mende told Reuters.

"The shooting lasted one or two hours. We will provide a full account of events in the coming hours," he said.

Mende said Congolese authorities were still attempting to identify the gunmen after some witnesses said they appeared to belong to one of Congo's mystical Mai Mai armed militia groups.

A resident contacted by Reuters said he had seen the bodies of five attackers killed by gunshots near the governor's office.

He said the group wore traditional magical fetishes and had attempted to hoist the flag of Katanga's short-lived 1960s-era independent republic before members of the army's elite Republican Guard launched a counter-attack against them.

"They came out of nowhere," said the witness, who said he had seen around 300 gunmen. "Then they just vanished."

Soldiers continued to occupy important locations throughout the city in the late afternoon as traffic began to circulate again.

Millions have died in the vast former Belgian colony's long-simmering armed conflicts, but - with fighting concentrated in the country's eastern borderlands - the mining areas around Lubumbashi have remained relatively calm.

Katanga now hosts many international mining companies, including Freeport McMoRan and commodities trader Glencore, and exports around half a million metric tons of copper each year.

Unidentified gunmen attacked Lubumbashi's airport last August - the second attack on the facility in two years - killing at least one soldier as government forces repelled the offensive after several hours of fighting.

(Reporting by Bienvenu Bakumanya; Writing by Joe Bavier; Editing by Stephen Powell)

Source: http://news.yahoo.com/hundreds-gunmen-attack-congo-mining-hub-least-five-174621818.html

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Sunday, March 24, 2013

Volleyball-sized fireball streaks across East Coast sky

NASA confirms that a fireball, as bright as a full moon, was seen from Florida to New England. The Friday night meteor was probably a small "boulder" that entered the Earth's atmosphere.

By Staff,?Associated Press / March 23, 2013

A bright flash of light, top center, was seen here in Seaford, Del., in what experts say was almost certainly a meteor coming down, Friday, March 22, 2013. Bill Cooke of NASA's Meteoroid Environmental Office said the flash appears to be "a single meteor event." He said it "looks to be a fireball that moved roughly toward the southeast, going on visual reports."

(AP Photo/Hopkins Automotive Group)

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Reports of a flash of light that streaked across the sky over the U.S. East Coast appeared to be a "single meteor event," the U.S. space agency said. Residents from New York City to Washington and beyond lit up social media with surprise.

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"Judging from the brightness, we're dealing with something as bright as the full moon," Bill Cooke of NASA's Meteoroid Environmental Office said Friday. "We basically have (had) a boulder enter the atmosphere over the northeast."

Cooke said the meteor was widely seen, with more than 350 reports on the website of the American Meteor Society alone.

Robert Lunsford of the society told USA Today "it basically looked like a super bright shooting star."

The sky flash was spotted as far south as Florida and as far north as New England, the newspaper reported.

Matt Moore, a news editor with The Associated Press, said he was standing in line for a concert in Philadelphia around dusk when he saw "a brilliant flash moving across the sky at a very brisk pace... and utterly silent."

"It was clearly high up in the atmosphere," he said. "But from the way it appeared, it looked like a plane preparing to land at the airport."

Moore said the flash was visible to him for about two to three seconds, and then it was gone. He described it as having a "spherical shape and yellowish and you could tell it was burning, with the trail that it left behind."

Derrick Pitts, chief astronomer at Philadelphia's Franklin Institute, agreed that the sightings had all the hallmarks of a "fireball."

Pitts said this one got more attention because it happened on a Friday evening ? and because Twitter has provided a way for people to share information on sightings.

He said what people likely saw was one meteor ? or "space rock" ? that may have been the size of a volleyball and fell fairly far down into the Earth's atmosphere. He likened it to a stone skipping across the water ? getting "a nice long burn out of it."

Pitts said experts "can't be 100 percent certain of what it was, unless it actually fell to the ground and we could actually track the trajectory."

But he said the descriptions by so many people are "absolutely consistent" with those of a meteor.

Copyright 2013 The Associated Press.

Source: http://rss.csmonitor.com/~r/feeds/csm/~3/8zqI3b49I3o/Volleyball-sized-fireball-streaks-across-East-Coast-sky

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Baby polar bears learn to crawl and walk (video) (Americablog)

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Saturday, March 23, 2013

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Source: http://www.briefingwire.com/pr/now-all-newbie-internet-marketers-can-learn-how-to-build-a-targeted-email-list-for-free

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