Top China Stories from WSJ: Lenovo?s Gains, Sea Tensions, Macy?s Makes a Move

Your daily round-up of the Journal?s best China coverage:

Macy?s Makes China Move: Macy?s is acquiring a minority stake in a Chinese online retailer that will sell the U.S. department store?s merchandise on its website. It will pay $15 million for a stake in VIPStore, which operates the Omei.com website. ?Subscriber Content)

Lenovo Makes Solid Gain: Lenovo bucked the tough times in the personal-computer business with a 59% rise in fiscal fourth-quarter net profit. (Subscriber Content)

Philippines Says China Fans Sea Tensions: Manila expressed ?grave concern? to Beijing, saying that dozens of Chinese vessels had been deployed in a disputed portion of the South China Sea despite a fishing ban. (Subscriber Content)

Smartphones Turn China?s Internet Revenue Mobile: ?Smartphones are making the giants of China?s telecom and Internet sectors look a little slow. (Subscriber Content)

Details Released in Gome Case: China?s top court detailed the insider-trading charges against the founder of Chinese retailer Gome, who has been in prison since 2010. (Subscriber Content)

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Asteroid nudged by sunlight: Most precise measurement of Yarkovsky effect

Friday, May 25, 2012

Scientists on NASA's asteroid sample return mission, Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx), have measured the orbit of their destination asteroid, 1999 RQ36, with such accuracy they were able to directly measure the drift resulting from a subtle but important force called the Yarkovsky effect ? the slight push created when the asteroid absorbs sunlight and re-emits that energy as heat.

"The new orbit for the half-kilometer (one-third mile) diameter 1999 RQ36 is the most precise asteroid orbit ever obtained," said OSIRIS-REx team member Steven Chesley of the NASA Jet Propulsion Laboratory, Pasadena, Calif. He presented the findings May 19 at the Asteroids, Comets and Meteors 2012 meeting in Niigata, Japan.

Observations that Michael Nolan at Arecibo Observatory in Puerto Rico made in September 2011, along with Arecibo and Goldstone radar observations made in 1999 and 2005, when 1999 RQ36 passed much closer to Earth, show that the asteroid has deviated from its gravity-ruled orbit by roughly 100 miles, or 160 kilometers, in the last 12 years, a deviation caused by the Yarkovsky effect.

The Yarkovsky effect is named for the nineteenth-century Russian engineer who first proposed the idea that a small rocky space object would, over long periods of time, be noticeably nudged in its orbit by the slight push created when it absorbs sunlight and then re-emits that energy as heat.

"The Yarkovsky force on 1999 RQ36 at its peak, when the asteroid is nearest the sun, is only about a half ounce ? about the weight of three grapes on Earth. Meanwhile, the mass of the asteroid is estimated to be about 68 million tons. You need extremely precise measurements over a fairly long time span to see something so slight acting on something so huge."

Nolan and his team measured the distance between the Arecibo Observatory and 1999 RQ36 to an accuracy of 300 meters, or about a fifth of a mile, when the asteroid was 30 million kilometers, or 20 million miles, from Earth.

"That's like measuring the distance between New York City and Los Angeles to an accuracy of two inches, and fine enough that we have to take the size of the asteroid and of Arecibo Observatory into account when making the measurements," Nolan said.

Chesley and his colleagues used the new Arecibo measurements to calculate a series of 1999 RQ36 approaches closer to Earth than 7.5 million kilometers (4.6 million miles) from the years 1654 to 2135. There turned out to be 11 such encounters.

By combining the radar results from Arecibo Observatory with infrared results from NASA's Spitzer Space Telescope, the scientists also learned that asteroid 1999 RQ36 is very light ? it has around the same density as water, Chesley reported.

"This study is an important step in better understanding the Yarkovsky effect ? a subtle force that contributes to the orbital evolution of new Near-Earth Objects," said Dante Lauretta, the mission's principal investigator and professor of planetary science at the University of Arizona.

Lauretta added that "this information is critical for assessing the likelihood of an impact from our target asteroid and provides important constraints on its mass and density, allowing us to substantially improve our mission design."

The OSIRIS-REx spacecraft is to launch in 2016, reach asteroid (101955) 1999 RQ36 in 2019, examine it up close during a 505-day rendezvous, then return at least 60 grams (~1.9 ounces) of it to Earth in 2023.

"In addition to the exciting Yarkovsky results, the low density shows that 1999 RQ36 is probably a loose aggregate of rocks--a so called rubble pile," said Jason Dworkin, the mission's project scientist and Chief of Astrochemistry at NASA's Goddard Space Flight Center in Greenbelt, Md. "This makes it an ideal target for OSIRIS-REx to collect loose surface material."

###

NASA/Goddard Space Flight Center: http://www.nasa.gov/goddard

Thanks to NASA/Goddard Space Flight 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.

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Video: Wild weather in store for Memorial Day

>>> actually got some weather we're watching for this holiday weekend, in addition to extreme heat. we have a pretty good storm forming, speaking of florida. jim cantore is at the weather channel headquarters with that. hey, jim, good evening.

>> three things we're watching for you this weekend. of course, it would be mice if we could take the tropical system and put it over a parched central florida . the biggest thing is the heat. secondly, severe, we're going to ramp up the tornado count, and the tropics. first the heat, if we get to 95 degrees in indianapolis, that will be the hottest indianapolis 500 ever. you're talk about some 400 people out there enduring that heat. on sunday, the trough, which is bringing snow to west yellowstone , lips out and producing tornadoes, we think. min minneapolis, omaha, and there's our tropical enttty trying to develop offshore of wilmington. a lot of models bring us back west. that means some unsettled weather for the beaches, rip currents here, and potentially maybe good news at the end of this, some of the worst drought in the country over georgia and south carolina , maybe a little rain there.

>> hope it's not enough to keep you too busy this weekend. jim cantore at the weather channel headquarters tonight.

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Warning signs for Obama on tight path to 270

President Barack Obama faces new warning signs in a once-promising Southern state and typically Democratic-voting Midwestern states roughly five months before the election even as he benefits nationally from encouraging economic news.

Obama's new worries about North Carolina and Wisconsin offer opportunities for Republican Mitt Romney, who must peel off states Obama won in 2008 if he's to cobble together the 270 electoral votes needed to oust the incumbent in November.

Iowa, which kicked off the campaign in January, is now expected to be tight to the finish, while New Mexico, thought early to be pivotal, seems to be drifting into Democratic territory.

If the election were today, Obama would likely win 247 electoral votes to Romney's 206, according to an Associated Press analysis of polls, ad spending and key developments in states, along with interviews with more than a dozen Republican and Democratic strategists both inside and outside of the two campaigns.

Seven states, offering a combined 85 electoral votes, are viewed as too close to give either candidate a meaningful advantage: Colorado, Florida, Iowa, Nevada, New Hampshire, Ohio and Virginia.

"As of today, the advantage still lies with the president, but there is a long and hard road ahead in this election," said Tad Devine, who was a top strategist to Democratic presidential candidates Al Gore and John Kerry but isn't directly involved in this year's race.

If Romney wins all the states Republican John McCain carried in 2008 plus North Carolina, as trends today suggest he would, he would still need 64 electoral votes to hit the magic number. That would require him to win a majority of the states that are up for grabs.

Obama, on the other hand, faces the costly and labor-intensive challenge of defending those states in a much different environment than the one he enjoyed four years ago.

Big-spending, pro-Romney political committees are certain to be a factor, and already are running heavy levels of television ads in states where Obama is vulnerable, such as Florida.

But Obama's early spending ? more than $30 million on advertising before Memorial Day ? and new glimmers of economic hope across the battleground states demonstrate the size of Romney's challenge.

The race is expected to be close, and the past six weeks have been volatile.

North Carolina is a case in point.

Obama announced his support for gay marriage on May 9, one day after 60 percent of North Carolina voters approved a constitutional ban. "That issue definitely hurts him down there," said veteran Republican presidential campaign strategist Charlie Black, a top aide to 2008 nominee McCain who's not directly involved in this year's race.

North Carolina's high African American and young voter population, keys to Obama's 2008 wins there, give him the edge, aides say. And the president so far has spent heavily there, $2.7 million on television, according to reports provided to the AP.

But Democratic Gov. Bev Perdue gave Republicans an opening by not seeking re-election this year. And union leaders, a key Democratic constituency, are upset that this summer's Democratic National Convention in Charlotte, N.C., is being held in a state where union rights are weak.

In Wisconsin, embattled Republican Gov. Scott Walker's improving fortunes as a contentious June 5 recall election approaches could alter that state's landscape. Walker, who sparked mass protests by signing anti-union legislation last year, has pulled narrowly ahead of Democratic Milwaukee Mayor Tom Barrett in recent polls.

If Walker survives, Romney aides say they have a real chance to carry Wisconsin, which no Republican has done since Ronald Reagan in 1984.

"I don't think there's been any better dress rehearsal for a presidential election than what's going on in Wisconsin right now," said Rich Beeson, political director for the former Massachusetts governor.

Indeed, the Wisconsin recall could signal a GOP shift in an arc of states from Iowa to Pennsylvania that have reliably voted Democratic in presidential elections for a generation.

"Whether Walker wins or doesn't is going to be a big indicator of how Wisconsin goes, and how the whole upper Midwest goes," said Iowa's Republican Gov. Terry Branstad.

Romney has signaled plans to contest Iowa, where Obama's 2008 caucus win propelled him to the Democratic nomination. Romney also sees opportunity in his native Michigan, where Democratic presidential candidates have won since 1988.

Bright spots are developing for Obama, too.

Public polls this month showed the president narrowly ahead in Virginia, a Southern state Republicans had carried nine times before Obama won it in 2008. Obama's advantage among Latino voters is moving New Mexico his way. Neither campaign nor the super PACs have advertised there, despite close finishes in 2000 and 2004.

Obama also has seized on new economic data that could give him a lift across the contested map. April unemployment ticked downward in all of the up-for-grabs states except Colorado as Obama and Romney have fought over who is best equipped to lead an economic recovery.

In Des Moines, Iowa, this month, Romney blamed Obama's spending for the recovery's slow pace. A week later, on the other side of town, Obama said Romney's career as a private equity executive was more suited for the boardroom than the Oval Office.

Obama's attack dovetails with scathing ads on Romney's career at the head of Bain Capital, which ran briefly in Colorado, Iowa, Pennsylvania and Virginia. They remained on the air last week in Ohio, where Obama aides say Romney's opposition to the auto industry bailout in 2009 hurts him with workers in the region's auto manufacturing sector.

Obama has had an edge in getting out his message. For nearly two months, his campaign has aired spots across 11 states, heaviest in Florida, Iowa, Ohio and Virginia, according to the ad-tracking reports.

Romney has only been airing ads for two weeks in four states. But super PACs that support him have helped shave Obama's advertising edge, airing $10 million in ads across 10 states.

Obama aides point to an edge in state-by-state organizing that could be the deciding factor in a close election. While Romney is quickly arranging with the Republican National Committee to deploy staff to various battlegrounds, Obama's campaign has been up and running for years.

Said Democratic strategist Devine: "The president and his campaign have a real and potentially decisive advantage on the ground."

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Home safety for the elderly

The majority of elderly people, when they need extra help, wish to remain in their own home environment. Family and friends can help them achieve this, and where that's not quite enough, professional home care nurses can play a role. But once the decision to do this has been made then the issue of home safety for the elderly must be addressed.

So what is home safety for the elderly? It's really just a way of safety proofing the living areas of the house, to avoid unnecessary accidents, and to give the elderly person and carers extra piece of mind.

It needn't be expensive and with a little forethought and effort an elderly person's home can be made much more safe and secure.

Carpets. To prevent the elderly person from slipping or tripping up all carpets and rugs should be pinned or taped securely to the ground

Staircases. If the elderly person is able to walk upstairs it will help if handrails are placed on either side. If mobility is a problem then the family should think about installing a chairlift. These needn't be expensive and can offer an elderly person mobility and more independence, particularly if the bathroom and bedroom is upstairs.

Kitchens. Kitchens can be hazardous to young able-bodied people, so can provide a minefield of potential accidents for the elderly. Make sure all kitchen appliances are in good working order, and there are no loose wires hanging. Replace old worn out appliances as they may be dangerous. Keep cup and plates, and all other appliances at a good, reachable height, so an elderly person doesn't have to stretch or climb on things to get at them, and always make sure the lighting is good in the kitchen.

Smoke Detector. Make sure there is a smoke detector and it has new batteries. It's also a good idea to fit carbon monoxide detectors if it's possible. If an elderly person has hearing or smell dysfunction these two items could be literally life-saving devices for them.

Bathroom. The bathroom is another potentially hazardous area for elderly people. Again, make sure that mats and rugs are secure. The toilet should be at a height the person can reach easily and there should be grab bars on either side. Likewise there should be grab bars in the bath and shower, so the person doesn't have to struggle to get in or out.

These are just a few of the things you can do to safety proof an elderly persons home. Home safety for the elderly has to be your number one priority if your loved one wishes to remain in their own home. As we've discussed, it needed be too expensive or even time consuming to cover the basics. If the elderly person is living completely alone, or has more urgent medical needs then, of course, more care and attention will have to be taken. But with a little forethought and planning friends, family and care workers can all come together to make a home as accident proof as is possible.

Ana Nursing - Find 24 Hour Care, Home Nursing and Residential Care Homes London for the Quality Disabled and Elderly in London, UK. Dementia, Live in Care, Nursing and Respite Care Homes in London, UK. For more information please visit:- http://www.ana-nursing.co.uk/

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Jon Favreau starring in but not directing "Iron Man 3"

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Bud weakens to storm off Mexico?s Pacific coast

MANZANILLO, Mexico (Reuters) ? Hurricane Bud weakened to a tropical storm as it churned closer to Mexico?s coast on Friday, but brought heavy rains and strong winds that downed trees and closed schools and a major Pacific shipping port.

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