Friday, March 8, 2013

Jobless rate drops to lowest in 4 years

Hiring accelerated in February as the nation's economy created a better-than-expected 236,000 jobs and the unemployment rate slipped to 7.7 percent, the lowest since December 2008, government data showed Friday.

The report from the Labor Department is likely to help extend the stock market rally that has pushed the Dow Jones industrial average to its highest level in history.

It is also further evidence that the recovery, which has been sluggish at best, is showing the potential to improve, although plenty of hurdles remain.

"While more work remains to be done, today's employment report provides evidence that the recovery that began in mid-2009 is gaining traction," Alan Krueger, chairman of the White House Council of Economic Advisers, said in a statement.

As upbeat as the report was, more hiring is needed to swiftly reduce the unemployment rate further. Job gains of at least 100,000 a month are needed just to keep up with population growth and prevent the unemployment rate from rising.

From November through January, monthly job growth has averaged 200,000, up from 150,000 for the previous three months. Most economist expect job gains of about 180,000 a month this year. That's about the same as last year, when the rate fell 0.7 percentage point.

Related story: Jobless rate for post-9/11 veterans running heavy

One negative detail: Employers added fewer jobs in January than first estimated. Job gains were lowered to 119,000 from an initially reported 157,000. Still, December hiring was a little better than first thought, with 219,000 jobs added instead of 196,000.

Some analysts say the snowstorm that struck several Northeast states in early February might have held down hiring last month by about 30,000. Others note that the storm hit on a weekend and might not have kept that many people from work.

Several other reports this week have raised hopes that hiring could soon accelerate.

A four-week average of applications for unemployment aid fell to its lowest level in five years. Applications are a proxy for layoffs. When they fall, it suggests that companies are cutting fewer jobs. More hiring may follow.

And payroll services provider ADP said its survey showed that businesses added 198,000 jobs in February, above most analysts' expectations. And January's hiring was revised higher by 23,000 to 215,000.

Small businesses have stepped up hiring in the past two months after lagging behind hiring by bigger companies since the recession ended in June 2009.

Services firms, including retailers, restaurants and construction companies, added jobs at a healthy pace in February, according to the Institute for Supply Management's monthly survey. An index of hiring by service companies slipped but remained near January's seven-year high.

The ISM's manufacturing survey found that factories also added workers in February, though more slowly than in January.

Strong auto sales and a steady housing recovery are spurring hiring and economic growth. So far, higher gas prices and a Jan. 1 increase in Social Security taxes haven't caused Americans to cut back on big-ticket purchases.

Across-the-board government spending cuts also kicked in March 1 after the White House and Congress failed to reach a deal to avoid them. Those cuts will likely lead to furloughs and layoffs in coming weeks.

New-home sales jumped 16 percent in January to the highest level since July 2008. And builders started work on the most homes last year since 2008.

Home prices rose by the most in more than six years in the 12 months that ended in January. Higher prices tend to make homeowners feel wealthier and more likely to spend.

Reuters and The Associated Press contributed to this report.

Source: http://www.nbcnews.com/business/economywatch/unemployment-rate-drops-lowest-four-years-1C8767810

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Source: http://feedproxy.google.com/~r/TheIphoneBlog/~3/Udh8_h7sMAs/story01.htm

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General: Heart attack killed a suffering Chavez

In this photo released by Miraflores Press Office, Hugo Chavez' mother Elena Frias, third from left, and brothers Adan, second from left, Argenis, first right, and Adelis, fourth from right, stand next to the flag-draped coffin containing the body of Venezuela's late President Hugo Chavez on display during his wake at a military academy where his body will lie in state until his funeral in in state in Caracas, Venezuela, Wednesday, March 6, 2013. Seven days of mourning were declared, all schools were suspended for the week and friendly heads of state were expected for an elaborate funeral Friday. (AP Photo/Miraflores Presidential Press Office)

In this photo released by Miraflores Press Office, Hugo Chavez' mother Elena Frias, third from left, and brothers Adan, second from left, Argenis, first right, and Adelis, fourth from right, stand next to the flag-draped coffin containing the body of Venezuela's late President Hugo Chavez on display during his wake at a military academy where his body will lie in state until his funeral in in state in Caracas, Venezuela, Wednesday, March 6, 2013. Seven days of mourning were declared, all schools were suspended for the week and friendly heads of state were expected for an elaborate funeral Friday. (AP Photo/Miraflores Presidential Press Office)

Supporters hold a doll depicting of the late President Hugo Chavez as they wait in line to see his body outside the Fort Tiuna military academy in Caracas, Venezuela, Wednesday, March 6, 2013. Chavez's body will lie in sate at the academy until his funeral, scheduled for Friday. (AP Photo/Esteban Felix)

In this photo released by Miraflores Press Office, Argentina's President Cristina Fernandez, left, Venezuela's interim President Nicolas Maduro, second from left, Uruguay's President Jose Mujica, third from left, Bolivia's President Evo Morales, fourth from left, and Mujica's wife, Uruguayan Senator Luc?a Topolansky stand next to the flag-draped coffin containing the body of Venezuela's late President Hugo Chavez on display during his wake in Fort Tiuna military academy where his body will lie in state in Caracas, Venezuela, Wednesday, March 6, 2013. Seven days of mourning were declared, all schools were suspended for the week and friendly heads of state were expected for an elaborate funeral Friday. (AP Photo/Miraflores Presidential Press Office)

CARACAS, Venezuela (AP) ? President Hugo Chavez died of a massive heart attack after great suffering and inaudibly mouthed his desire to live, the head of Venezuela's presidential guard said late Wednesday.

"He couldn't speak but he said it with his lips ... 'I don't want to die. Please don't let me die,' because he loved his country, he sacrificed himself for his country," Gen. Jose Ornella told The Associated Press.

The general said he spent the last two years with Chavez, including his final moments, as Venezuela's president of 14 years battled an unspecified cancer in the pelvic region.

Ornella spoke to the AP outside the military academy where Chavez's body lay in state. He said Chavez's cancer was very advanced when death came but gave no details.

Ornella did not respond when asked if the cancer had spread to Chavez's lungs.

The government announced on the eve of Chavez's death that he had suffered a severe new respiratory infection. It was the second such infection reported by officials after Chavez underwent his fourth cancer surgery in Cuba on Dec. 11.

Venezuelan authorities have not said what kind of cancer Chavez had or specified exactly where tumors were removed.

During the first lung infection, near the end of December, doctors implanted a tracheal tube to ease Chavez's breathing, but breathing insufficiency persisted and worsened, the government said.

Ornella said that Chavez had "the best" doctors from all over the world but that they never discussed the president's condition in front of him.

The general said he didn't know precisely what kind of cancer afflicted Chavez, but added: "He suffered a lot."

He said that Chavez knew when he spoke to Venezuelans on Dec. 8, three days before his final surgery in Cuba, that "there was very little hope he would make it out of that operation."

It was Chavez's fourth cancer surgery and previous interventions had been followed by chemotherapy and radiation.

Ornella echoed the concern of Vice President Nicolas Maduro that some sort of foul play was involved in Chavez's cancer.

"I think it will be 50 years before they declassify a document (that) I think (will show) the hand of the enemy is involved," he said.

The general didn't identify who he was talking about, but Maduro suggested possible U.S. involvement on Tuesday. The U.S. State Department called the allegation absurd.

Maduro, Chavez's self-anointed successor, said Chavez died Tuesday afternoon in a Caracas military hospital.

The government said Chavez, 58, had been there since returning from Cuba on Feb. 18.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/3d281c11a96b4ad082fe88aa0db04305/Article_2013-03-07-LT-Venezuela-Chavez's-Death/id-41240fd53e34437a8883ff24bbb6dd72

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Rupert Murdoch's News Corp unveils its own Android tablet ...

Amplify Tablet

We learned today that the Rupert Murdoch-owned News Corporation has unveiled a 10-inch Android tablet designed specifically for schoolchildren. Known as the Amplify Tablet (Amplify is also the name of the News Corp?s education division), the $299 slate was presented earlier today at the?SXSWedu conference in Austin, Texas. Amplify sales reps are said to be currently knocking on the proverbial doors of public schools nationwide.

Amplify tablet

Joel Klein

According to a press release:

The Amplify Tablet and related services are being piloted this year in school districts across the country in collaboration with AT&T. Tablets purchased by June 30 will be ready for use in classrooms in time for the start of the 2013-2014 school year.

For $299, students will receive training and customer care along with the tablet; a two-year subscription to Amplify?s educational content clocks in at an additional $99 per year.?The Amplify Tablet Plus, meanwhile, is a second option; it comes with a 4G data plan, and because the Amplify is meant to be taken home at night by students, this is the model that will be pitched to those kids who don?t have Wi-Fi access at home. That model?s price tag is $349. On top of that, users will have to agree to a ?two-year mandatory subscription which includes AT&T service for $179 a year,? according to an item from Engadget.

Steep price tags aside, however, the Amplify is said to be?the first ?open tablet-based learning platform designed specifically for K-12 education.? It comes pre-loaded with apps featuring educational quizes and games, and the News Corp?s Amplify educational division will also be providing schools with the infrastructure necessary to store their students? data.

Joel Klein, the chief executive of the Amplify division, is largely credited as being the driving force behind the project; he previously worked as?chancellor of New York schools. ?There?s a huge opportunity if you can get kids excited about educational games,? he says, in a?New York Times?article?about the Amplify.??You can change the learning curve.?

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Source: http://www.teleread.com/education/rupert-murdochs-news-corp-unveils-its-own-android-tablet/

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Monday, March 4, 2013

Getting around the uncertainty principle: Physicists make first direct measurements of polarization states of light

Mar. 3, 2013 ? Researchers at the University of Rochester and the University of Ottawa have applied a recently developed technique to directly measure for the first time the polarization states of light. Their work both overcomes some important challenges of Heisenberg's famous Uncertainty Principle and also is applicable to qubits, the building blocks of quantum information theory.

They report their results in a paper published this week in Nature Photonics.

The direct measurement technique was first developed in 2011 by scientists at the National Research Council, Canada, to measure the wavefunction -- a way of determining the state of a quantum system.

Such direct measurements of the wavefunction had long seemed impossible because of a key tenet of the uncertainty principle -- the idea that certain properties of a quantum system could be known only poorly if certain other related properties were known with precision. The ability to make these measurements directly challenges the idea that full understanding of a quantum system could never come from direct observation.

The Rochester/Ottawa researchers, led by Robert Boyd, who has appointments at both universities, measured the polarization states of light -- the directions in which the electric and magnetic fields of the light oscillate. Their key result, like that of the team that pioneered direct measurement, is that it is possible to measure key related variables, known as "conjugate" variables, of a quantum particle or state directly. The polarization states of light can be used to encode information, which is why they can be the basis of qubits in quantum information applications.

"The ability to perform direct measurement of the quantum wavefunction has important future implications for quantum information science," explained Boyd, Canada Excellence Research Chair in Quantum Nonlinear Optics at the University of Ottawa and Professor of Optics and Physics at the University of Rochester. "Ongoing work in our group involves applying this technique to other systems, for example, measuring the form of a "mixed" (as opposed to a pure) quantum state."

Previously, a technique called quantum tomography has allowed researchers to measure the information contained in these quantum states, but only indirectly. Quantum tomography requires intensive post-processing of the data, and this is a time-consuming process that is not required in the direct measurement technique. Thus, in principle, the new technique provides the same information as quantum tomography but in significantly less time.

"The key to characterizing any quantum system is gathering information about conjugate variables," said co-author Jonathan Leach, who is now a lecturer at Heriot-Watt University, UK. "The reason it wasn't thought possible to measure two conjugate variables directly was because measuring one would destroy the wavefunction before the other one could be measured."

The direct measurement technique employs a "trick" to measure the first property in such a way that the system is not disturbed significantly and information about the second property can still be obtained. This careful measurement relies on the "weak measurement" of the first property followed by a "strong measurement" of the second property.

First described 25 years ago, weak measurement requires that the coupling between the system and what is used to measure it be, as its name suggests, "weak," which means that the system is barely disturbed in the measurement process. The downside of this type of measurement is that a single measurement only provides a small amount of information, and to get an accurate readout, the process has to be repeated multiple times and the average taken.

Boyd and his colleagues used the position and momentum of the light as the indicator of the polarization state. To couple the polarization to the spatial degree of freedom they used birefringent crystals: when light goes through such a crystal, there is a spatial separation introduced for different polarizations. For example, if light is made of a combination of horizontally and vertically polarized component, the positions of the individual components will spread out when it goes through the crystal according to its polarization. The thickness of the crystal can control the strength of the measurement, weak or strong, and determine the degree of separation, correspondingly small or large.

In this experiment, Boyd and his colleagues passed polarized light through two crystals of differing thicknesses: the first, a very thin crystal that "weakly" measures the horizontal and vertical polarization state; the second, a much thicker crystal that "strongly" measures the diagonal and anti-diagonal polarization state. As the first measurement was performed weakly, the system is not significantly disturbed, and therefore, information gained from the second measurement was still valid. This process is repeated several times to build up accurate statistics. Putting all of this together gives a full, direct characterization of the polarization states of the light.

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Story Source:

The above story is reprinted from materials provided by University of Rochester.

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


Journal Reference:

  1. Jeff Z. Salvail, Megan Agnew, Allan S. Johnson, Eliot Bolduc, Jonathan Leach, Robert W. Boyd. Full characterization of polarization states of light via direct measurement. Nature Photonics, 2013; DOI: 10.1038/nphoton.2013.24

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/physics/~3/gnTyWqxqd1s/130303154958.htm

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Sunday, March 3, 2013

Elderly Woman Dies After Nurse Refuses to Give Her CPR

A 911 dispatcher pleaded with a nurse at a Bakersfield, Calif., senior living facility to save the life of an elderly woman by giving her CPR, but the nurse said policy did not allow her to, according to a newly released audiotape of the call.

"Is there anybody there that's willing to help this lady and not let her die?" the dispatcher asked in a recording of the 911 call released by the Bakersfield Fire Department.

"Not at this time," the nurse said.

The incident unfolded on Tuesday when 87-year-old Lorraine Bayless collapsed at Glenwood Gardens, a senior living facility in Bakersfield.

In the seven-minute, 16-second recording, the nurse told the dispatcher it was against the facility's policy for employees to perform CPR on residents.

With every passing second, Bayless' chances of survival were diminishing. The dispatcher's tone turned desperate.

"Anybody there can do CPR. Give them the phone please. I understand if your facility is not willing to do that. Give the phone to that passerby," the dispatcher said. "This woman is not breathing enough. She is going to die if we don't get this started."

After several minutes, an ambulance arrived and took Bayless to Mercy Southwest Hospital, where she died.

Glenwood Gardens released a statement confirming its policy prohibiting employees from performing CPR.

"In the event of a health emergency at this independent living community, our practice is to immediately call emergency medical personnel for assistance and to wait with the individual needing attention until such personnel arrives. That is the protocol we followed," the statement said.

Despite protocol being followed, the nursing home said it would launch an internal investigation into the matter.

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Source: http://news.yahoo.com/elderly-woman-dies-nurse-refuses-182806550.html

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Star Tribune poll: Most Minnesotans want tax hike only on wealthy (Star Tribune)

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