Thursday, May 2, 2013

'White graphene' to clean up spills

A next-generation material first earmarked for use in electronics has proven itself a capable clean-up agent for polluted waters.

Boron nitride, or "white graphene", is similar to its namesake: sheets of atoms laid out like a chain-link fence.

A report in Nature Communications shows the material can preferentially soak up organic pollutants such as industrial chemicals or engine oil.

However, it is easier to clean and re-use than other such "nanomaterials".

The family of these materials includes much-touted, carbon-based members such as graphene and nanotubes, and are notable in part for their surface area-to-weight ratio.

That allows them to take up an incredible amount for their size, making them attractive for the clean-up of pollutants.

The new work suggests that a preparation of boron nitride could outperform many nanomaterials and more traditional approaches.

A team from the Institute for Frontier Materials at Deakin University in Australia and the Pierre and Marie Curie University in France started by making porous boron nitride "nanosheets" - wavy, single-atom layers of the material with holes in them.

These porous sheets, which together form a coarse white powder, vastly outperformed sheets that did not have the pores, and commercially available chunks of boron nitride that is not made up of the tiny sheets.

The porous version exhibited high "selective absorption and adsorption" - preferentially picking up organic pollutants and dyes out of water.

The powder soaked up as much as 33 times its own weight in the chemical ethylene glycol and 29 times its own weight of engine oil. Even still, the saturated powder floats on water.

The pollutants could then be driven out of the nooks and crannies of the material by heating it in a commercial furnace, or by simply igniting it - a trick that other, more established materials could only survive a few times before becoming completely clogged up.

"All these features make these porous nanosheets suitable for a wide range of applications in water purification and treatment," the authors wrote.

Francesco Stellacci of EPFL in Switzerland called the work "an excellent paper in a booming field".

"The data reported are indeed excellent and impressive," he told BBC News. "The key question is if this is the material that at the end will be used for remediation."

Prof Stellacci said that a market for such materials does not yet exist, and boron nitride's striking clean-up powers may or may not be enough to establish it as a leading contender, even among nanomaterials.

"I think that at the end it will not be performance that will determine the final material used, but more costs and scalability. I really hope that one of these materials, and maybe this one, will make it," he said.

Source: http://www.bbc.co.uk/news/science-environment-22351056#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa

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Wednesday, May 1, 2013

European rights court criticizes Ukraine over Tymoshenko case

STRASBOURG, France (Reuters) - Ukrainian opposition leader Yulia Tymoshenko was unlawfully held in detention before she was tried and sentenced to jail in 2011, the European Court of Human Rights said on Tuesday in a verdict that may add to Western complaints to Kiev over her fate.

The French-based rights court dismissed allegations by Tymoshenko that she was subjected to inhuman and degrading treatment, but ruled the pre-trial detention order was an unjustified restriction of her freedom at that time.

The ruling stated: "The Court held in particular, that Ms Tymoshenko's pre-trial detention had been arbitrary, that the lawfulness of her detention had not been properly reviewed and, that she had no possibility to seek compensation for her unlawful deprivation of liberty".

Tymoshenko, 52, was twice prime minister before losing a close presidential race in 2010 to Viktor Yanukovich, whose 2004 bid for the post was thwarted by the Orange Revolution, a wave of pro-democracy protests she had helped lead.

She was tried and sentenced in October 2011 to seven years jail for abuse of office in relation to her role in a gas deal with Russia that saddled Ukraine with exorbitant energy costs.

The European Union suspended work on free trade and broader cooperation pacts with Kiev over the case and EU ministers said this week the accords were being stymied in particular due to "selective justice", a term used by the West to convey concern about prosecution of rival politicians.

Tymoshenko's lawyer denounced what he called Ukraine's "pure, concentrated political prosecution" of Tymoshenko.

Ukraine had been found wanting by Europe's highest court on human rights issues and should now release her, said lawyer Serguei Vlasenko.

The European Court of Human Rights verdict can be appealed if Ukraine wishes to do so in the next three months but in any case it did not include an order to pay damages because Tymoshenko had not sought compensation.

Since last May, Tymoshenko, 52, has been receiving treatment for back trouble in a state-run hospital in the city of Kharkiv.

President Yanukovich has said he cannot order her release because Tymoshenko is also due to be tried in a separate case on tax evasion and embezzlement charges and she is being investigated also in a murder case. She has denied all charges against her.

The European rights court is also looking into complaints by Tymoshenko about the 2011 trial and sentence, but said it would rule on part side of the case at a later date.

(Reporting by Gilbert Reilhac in Strasbourg and Olzhas Auyezov in Kiev; Writing by Brian Love; Editing by Jon Hemming)

Source: http://news.yahoo.com/european-rights-court-criticizes-ukraine-over-tymoshenko-case-120942302.html

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Monday, April 29, 2013

Alibaba pushes into social networking with Weibo investment

By Sayantani Ghosh and Sruthi Ramakrishnan

(Reuters) - Chinese e-commerce firm Alibaba Group acquired an 18 percent stake in web portal Sina Corp's microblogging service Weibo in its first big move into selling advertising on China's highly competitive social networks.

Sina's U.S.-listed shares surged 21 percent to $60.81 in early trading, before easing back to $56.90.

The $586 million deal, which values Weibo at over $3 billion, will provide more advertising revenue to Weibo as Sina tries to monetize the service and increase its lead over rival Tencent Holdings' social messaging product, WeChat.

The deal, seen by analysts as generously priced, should drive more web traffic to Alibaba's Taobao Marketplace, China's largest e-commerce website with a consumer focus.

Alibaba is tipped to go public within the next year.

Weibo, China's version of Twitter, has grown at a fast clip since its launch in 2009 and has gained from the blockage of Twitter by the Chinese government.

More than 500 million Chinese use Weibo to opine on everything from Korean soap operas to China's latest political intrigue.

"(The stake purchase) is as an endorsement from Alibaba ... of the value of Sina's Weibo platform," Morningstar analyst Dan Su said.

"This indicates the tremendous value of the data that is present on the Weibo platform that can be mined for a lot of activities, such as ecommerce."

Unlisted Alibaba, controlled by charismatic Chinese internet entrepreneur Jack Ma, also runs Alibaba.com, the country's largest business-to-business commerce platform, and Alipay, a PayPal-like online payment platform.

Ma, one of China's best known corporate leaders, reckoned to be worth $3.4 billion by Forbes late last year, built his e-commerce empire from scratch.

He plans to step down as CEO on May 10 and become executive chairman. Alibaba is likely to go public in a listing in Hong Kong that could value the company at about $100 billion, according to industry sources.

Alibaba has kept mum about its IPO plans, but its listing will likely be a windfall for Yahoo Inc, which owns nearly a quarter of the company.

GENEROUS FOR SINA

Some analysts, who had valued Weibo between $600 million and $2.5 billion, said the deal offered by Alibaba was generous.

"We believe this deal is very positive for Sina. It instantly gives pricing to Sina Weibo with a valuation of $3.26 billion; the per share base could be $48," T.H. Capital Research analyst Tian Hou said.

"Sina's resource consolidation with Alibaba Group, which has a huge dominant position in China's e-commerce, can escalate Weibo's development," she said.

Sina, which makes most of its revenue from online advertising both on its website and Weibo, has had investors worried as the growth rate of Chinese online advertising slows. Its shares have slipped 15 percent in the last 12 months.

Maxim Group analyst Echo He said the Alibaba deal would help Sina in the longer term, but giving Sina cash would not solve its problems and its valuation would still depend on its own profitability.

This is not the first time Sina has tied up with a major Chinese company to seek new streams of revenue.

Sina allied with Baidu Inc last year, integrating Baidu search in its mobile website, while Baidu said its cloud initiative would come with the Weibo app preinstalled.

The analysts said Sina could potentially team up with many other companies, while Morningstar's Su said the deal ruled out any near-term plans for another such major alliance.

Sina has also granted Alibaba the option to increase its stake in Weibo to 30 percent within a stipulated time, which it did not specify.

The alliance is expected to generate about $380 million in advertising and social commerce services revenue for Weibo over the next three years, Sina said in a statement.

(Additional reporting by Supantha Mukherjee; Editing by Saumyadeb Chakrabarty)

Source: http://news.yahoo.com/sina-says-alibaba-buys-18-percent-stake-weibo-121859682.html

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Lawmakers Propose Raising State's Legal Smoking Age To 21 - NY1

Updated?04/28/2013 05:28 PM

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Wednesday, April 24, 2013

Solution For Scott County Emergency Communications Issues - UPDA

Shortly after the January 17, 2013?fire at Del's Eatery in Eldridge, Iowa, Scott County Communications realized they had issues sending out mass alerts.

But Riverdale, Iowa's new system could completely solve those problems, according to Second Assistant Fire Chief, Mike Kleinsmith.

"With the Del's fire, they were wanting all the departments they could get to come out with water and instead of paging, they sent out a text message. The text messaging didn't go through to everybody and some people didn't get them for several hours."

And by several hours,?Kleinsmith means some got the text message at 7:15 p.m., two hours after crews had been cleared to leave scene.

The Riverdale Fire Department has been using a system called "I Am Responding" for three years. It's an online company that's is monitored 24-7.

Unlike Scott County, it does not tax the system that already delivers a high volume of alerts.

When the station gets a dispatch call, the system automatically sends out an alert text, page, and email with information.

The system reports how many people are responding to the calls.

"It also allows us to know if we don't have enough, if we need to call for mutual aid sooner than what we normally would."

"It all takes about six seconds. The call comes in and the message has been sent."

Crews immediately start responding.

At the fire department, the screen shows them who is on scene, who is on the way and if more firefighters are needed.

"It's really helped, I believe, to be more effective in our responses."

In the case of the Del's fire, the alert system may have gotten more first responders on scene with water tankers.

"Time is crucial. the quicker we can get out the better."

UPDATE: KWQC spoke with Brian Hitchcock, the Scott Emergency Communications Center Director after this story was released.

Hitchcock says problems that occurred the day of the Dell's fire have already been resolved.

He says there still can be issues with internet?delivered calls, like the I AM Responding system, and that?radio pages are more reliable.

?

Source: http://www.kwqc.com/story/22052638/improvements-in-scott-county-emergency-communications

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Tuesday, April 23, 2013

U.S. existing homes sales show surprise drop | Mortgages & Real ...

Sales of previously owned U.S. homes unexpectedly dropped in March, showing uneven progress in the industry.

Purchases of previously owned houses, tabulated when a contract closes, fell 0.6% to a 4.92 million annual rate last month, figures from the National Association of Realtors showed today in Washington. The median forecast of 75 economists surveyed by Bloomberg projected sales would increase to a 5 million rate. Prices climbed, reflecting more demand for higher-priced houses.

Historically low mortgage rates, rising property values and employment gains have helped mend the U.S. housing market, a source of strength for the world?s largest economy a boost. At the same time, a drop in the inventory of cheaper properties for sale compared with last year may be restraining the pace of progress in the industry.

?Housing will remain a positive for the economy, but there should be some slowing in the next few months,? David Sloan, a New York-based senior economist at 4Cast Inc., said before the report. ?The slowing is temporary. There is a shortage of supply. The housing market will revive.?

Stocks fell after the report, with the Standard & Poor?s 500 Index declining 0.2% to 1,552.78 at 10:03 a.m. in New York.

Sales estimates in the Bloomberg survey ranged from 4.9 million to 5.2 million. The prior month?s pace was revised to 4.95 million from a previously reported 4.98 million.

Existing-home purchases, counted when contracts close, are recovering from a 13-year low of 4.11 million in 2008. Annual sales peaked at 7.08 million in 2005. A total of 4.66 million previously-owned houses were sold in 2012.

Year Ago

Compared with a year earlier, purchases increased 7.2% in March on an unadjusted basis, today?s report showed.

The median price of an existing home rose 11.8%, the most since November 2005, to $184,300 last month from $164,800 in March 2012.

The number of previously owned homes on the market rose to 1.93 million in March from 1.9 million a month earlier, according to Monday?s report. At the current sales pace, it would take 4.7 months to sell those houses compared with 4.6 months at the end of February. The group has said supply in the six-months range is ?normal.?

The inventory of unsold homes was 2.32 million a year earlier.

The supply of homes is ?plentiful on the upper end of prices. There?s very little inventory on the lower end,? Lawrence Yun, NAR chief economist, said in a news conference today as the figures were released.

Borrowing Costs

Real-estate activity is being stoked by cheaper borrowing costs and an improving labor market. The average rate for a 30- year fixed mortgage fell to 3.41% in the week ended April 18, the third consecutive drop, according to Freddie Mac. The rate declined to a record low of 3.31% in November.

Higher home prices have also boosted household wealth. Property values rose 10.2% in the 12 months through February, the biggest gain in almost seven years, according to Irvine, California-based CoreLogic Inc.

Builders are responding by stepping up construction, providing a boost for the expansion. They broke ground on new homes in March at the fastest pace in almost five years, the Commerce Department said April 16.

Contacts in most districts of the Federal Reserve system said ?residential and commercial real estate improved markedly? with rising property values and demand for home loans that was ?steady to slightly up,? according to its Beige Book business survey, which covers the period from late February to early April.

Furniture Sales

The strength in housing is spilling over into other parts of the economy such as manufacturing.

?We?re encouraged by the sustained improvement in housing sales, new home construction, rising housing prices, reduced inventories, historically low mortgage rates, and the best housing affordability in years, all of which combined to create a positive environment for our company and our industry,? Paul Toms, chief executive officer at Martinsville, Virginia-based furniture maker Hooker Furniture Corp., said on an April 15 earnings call.

Bloomberg.com

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Source: http://business.financialpost.com/2013/04/22/surprise-drop-in-u-s-existing-homes-sales-show-uneven-progress-in-recovery/

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Monday, April 22, 2013

China rushes relief after Sichuan quake kills 186

Una anciana duerme protegida por un covertor pl?stico en una carretera de Lushan, el domingo 21 de abril de 2013. Un sismo sacudi? el fin de semana la zona de Sichuan y provoc? la muerte de por lo menos 186 personas. (AP Foto/Ng Han Guan)

Una anciana duerme protegida por un covertor pl?stico en una carretera de Lushan, el domingo 21 de abril de 2013. Un sismo sacudi? el fin de semana la zona de Sichuan y provoc? la muerte de por lo menos 186 personas. (AP Foto/Ng Han Guan)

An elderly woman eats a meal near rubbish piled up at a center for evacuees in the county seat of Lushan in southwestern China's Sichuan province, Sunday, April 21, 2013. Rescuers and relief teams struggled to rush supplies into the rural hills of China's Sichuan province Sunday after the earthquake prompted frightened survivors to spend a night in cars, tents and makeshift shelters. (AP Photo/Ng Han Guan)

A woman looks over at her destroyed house in Gucheng village in Longmen county of southwestern China's Sichuan province, Sunday, April 21, 2013. Rescuers and relief teams struggled to rush supplies into the rural hills of China's Sichuan province Sunday after an earthquake prompted frightened survivors to spend a night in cars, tents and makeshift shelters. (AP Photo/Ng Han Guan)

Chinese paramilitary policemen stand watch while rescuers operate backhoes to clear a damaged road due to a landslide triggered by a strong quake in Baosheng township of Lushan county in southwest China's Sichuan province Sunday April 21, 2013. Saturday's earthquake in Sichuan province killed over 200 people, China's Xinhua News Agency said. (AP Photo) CHINA OUT

A woman eats instant noodles at a shelter near her damaged home in Longmen township in Lushan county in southwest China's Sichuan province Sunday, April 21, 2013. Saturday's earthquake in Sichuan province killed over 200 people, China's Xinhua News Agency said. (AP Photo) CHINA OUT

(AP) ? Sitting near chunks of concrete, bricks and a ripped orange sofa, Luo Shiqiang told how his grandfather was just returning from feeding chickens when their house collapsed and crushed him to death in a powerful earthquake in southwestern China.

"We lost everything in such a short time," the 20-year-old college student said. His cousin was injured in the collapse, but other family members were spared because they were working in the fields in hard-hit Longmen village in Lushan county.

Saturday's earthquake in Sichuan province killed at least 186 people, injured more than 11,000 and left nearly two dozen missing, mostly in the rural communities around Ya'an city, along the same seismic fault where a devastating quake to the north killed more than 90,000 people in Sichuan and neighboring areas five years ago in one of China's worst natural disasters.

The Lushan and Baoxing counties hardest-hit on Saturday had escaped the worst of the damage in the 2008 quake, and residents there said they benefited little from the rebuilding efforts, with no reinforcements or new evacuation procedures introduced in their remote communities.

Luo said he wished more had been done to make his community's buildings quake-resistant. "Maybe the country's leaders really wanted to help us, but when it comes to the lower levels the officials don't carry it out," he said.

Relief teams flew in helicopters and dynamited through landslides Sunday to reach some of the most isolated communities, where rescuers in orange overalls led sniffer dogs through piles of brick, concrete and wood debris to search for survivors.

Many residents complained that although emergency teams were quick to carry away bodies and search for survivors, they had so far done little to distribute aid. "No water, no shelter," read a hand-written sign held up by children beside a road in Longmen.

"I was working in the field when I heard the explosions of the earthquake, and I turned around and saw my house simply flatten in front of me," said Fu Qiuyue, a 70-year-old rapeseed farmer in Longmen.

Fu sat with her husband, Ren Dehua, in a makeshift shelter of logs and a plastic sheet on a patch of grass near where a helicopter had parked to reach their community of terraced grain and vegetable fields. She said the collapse of the house had crushed eight pigs to death. "It was the scariest sound I have ever heard," she said.

The quake ? measured by China's earthquake administration at magnitude 7.0 and by the U.S. Geological Survey at 6.6 ? struck shortly after 8 a.m. on Saturday. Tens of thousands of people moved into tents or cars, unable to return home or too afraid to go back as aftershocks continued to jolt the region.

The quake killed at least 186 people, left 21 missing and injured 11,393, the official Xinhua News Agency quoted the provincial emergency command center as saying.

As in most natural disasters, the government mobilized thousands of soldiers and others, sending excavators and other heavy machinery as well as tents, blankets and other emergency supplies. Two soldiers died after their vehicle slid off a road and rolled down a cliff, state media reported.

The Chinese Red Cross said it had deployed relief teams with food, water, medicine and rescue equipment to the disaster areas.

U.N. Secretary-General Ban Ki-moon said the United Nations stood ready "to provide assistance and to mobilize any international support that may be needed," according to a statement released by the U.N. spokesperson.

In his condolence message, Ban said he "is deeply saddened by the loss of life, injuries and destruction" caused by the earthquake and aftershocks that struck Sichuan province.

Lushan, where the quake struck, lies where the fertile Sichuan plain meets foothills that eventually rise to the Tibetan plateau and sits atop the Longmenshan fault, where the 2008 quake struck.

The seat of Lushan county has been turned into a large refugee camp, with tents set up on open spaces, and volunteers doling out noodles and boxed meals to survivors from stalls and the backs of vans.

A large van with a convertible side served as a mobile bank with an ATM, military medical trucks provided X-rays for people with minor injuries, and military doctors administered basic first aid, applying iodine solution to cuts and examining bruises.

Patients with minor ailments were lying in tents in the yard of the hospital, which was wrecked by the quake, with the most severely injured patients sent to the provincial capital. With a limited water supply and buildings inaccessible, sanitation is a problem for the survivors.

One of the patients receiving care in the hospital's yard was the son of odd-job laborer Zhou Lin, 22. The baby boy was born a day before the quake struck. Zhou said he was relieved that his newborn son and wife were safe and healthy but was worried about his 60-year-old father and other relatives who have been unreachable in Baoxing.

"I can't get through on the phone, so I don't know what's going on there and they don't know if we are all right," he said.

Every so often, an aftershock struck, shaking windows of buildings and sending murmurs through the crowds.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/3d281c11a96b4ad082fe88aa0db04305/Article_2013-04-21-China-Earthquake/id-bd7ba84c0d10421081acf3ac0e709132

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