Tuesday, January 29, 2013

Senators Agree on Immigration Plan That Gives Legal Status to ...

WASHINGTON, D.C. ? A bipartisan group of senators has agreed on a plan to grant legal status to most of the estimated 11 million illegal immigrants in the U.S., which could form the basis for a far-reaching overhaul of immigration laws this year.

The Senate blueprint, drafted during weeks of closed-door meetings by leading senators from each party, will probably set parameters for a contentious legislative battle over the next several months. The eight senators involved intend to release their proposal publicly Monday. A copy was provided to The Times? Washington bureau on Sunday by Senate aides.

The Senate plan is more conservative than President Obama?s proposal, which he plans to unveil Tuesday in a speech in Las Vegas. But its provisions for legalizing millions of undocumented immigrants go further than measures that failed to advance in Congress in previous years ? a reminder of how swiftly the politics of immigration have shifted since Latino voters? strong influence in the November election.

In terms of the number of people who would potentially receive legal status, it would be more than three times larger than the amnesty plan passed under President Reagan in 1986, which legalized about 3 million immigrants.

The senators involved hope to begin committee votes on a bill as soon as March. The timing of their proposal and Obama?s, coupled with that schedule ? quick by Senate standards ? could set up a dynamic in which an eventual bill falls somewhere between the bipartisan plan and the president?s.

Latino activists and other advocates for comprehensive immigration reform have pushed for quick action in the Senate, hoping that a large bipartisan vote for a bill that includes a path to citizenship would put pressure on the House.

Many members of the House Republican majority represent districts where proposals for legalization remain highly unpopular, but many Republicans also worry about the political price if the party takes the blame for killing immigration reform.

The Senate proposal would allow most of those in the country illegally to obtain probationary legal status immediately by paying a fine and back taxes and passing a background check. That would make them eligible to work and live in the U.S. They could earn a green card ? permanent residency ? after the government certifies that the U.S.-Mexican border has become secure, but might face a lengthy process before becoming citizens.

Obama is expected to push for a faster citizenship process that would not be conditional on border security standards being met first. The structure of the citizenship process will probably be among the most hotly debated parts of any immigration plan.

Less-controversial provisions would tighten requirements on employers to check the immigration status of new workers; increase the number of visas for high-skilled jobs; provide green cards automatically to people who earn master?s degrees or PhDs in science, technology or math at U.S. universities; and create an agricultural guest-worker program.

On Sunday, a White House spokesman said the president was ?pleased that progress is being made with bipartisan support.?

?At the same time, he will not be satisfied until there is meaningful reform, and he will continue to urge Congress to act,? Obama spokesman Clark Stevens said.

Sen. Charles E. Schumer (D-N.Y.), who heads the Senate subcommittee that handles immigration legislation, briefed the White House on Sunday, according to a Senate aide who spoke on condition of anonymity because he was not authorized to discuss the matter publicly.

The eight senators scrambled over the weekend to come to an agreement before Obama unveiled his plan, hoping to head off any potential Republican backlash against a White House proposal and show common ground.

At a news conference Sunday in New York, Schumer noted that ?the devil is in the details,? but said that he and the other senators in the group had made good progress.

?I?m impressed with my colleagues on both sides of the aisle over their desire to meet in the middle. We can?t pass it without both Democrats and Republicans,? said Schumer, adding that he and Sen. John McCain (R-Ariz.) had ?developed a little bit of a friendship? during the negotiations.

The group has met in person five times in Washington since the November election, alternating between the Capitol Hill offices of Schumer and McCain. Participants include Democrats Richard J. Durbin of Illinois, Robert Menendez of New Jersey and Michael Bennet of Colorado, and Republicans Lindsey Graham of South Carolina, Marco Rubio of Florida and Jeff Flake of Arizona.

Rubio, a conservative favorite widely seen as a potential contender for the GOP presidential nomination in 2016, was asked to join the Senate group in early December. In their discussions, Rubio focused on strengthening employee-verification provisions and improving border security before the new class of immigrants could be eligible for citizenship, a Senate aide said.

So far, the group has negotiated legislative language on implementing the legalization program and on increasing border security, said a Senate aide familiar with the discussions. The senators will turn their attention next to details on how to increase the flow of legal immigration to reduce the incentive for illegal border crossings, the aide said.

One sticking point could be how the government decides the border is secure ? the determination that would trigger the provisions allowing citizenship.

The senators have proposed a commission of border-state governors, attorneys general and community leaders to monitor border security. But if the government fails to meet the panel?s standard, those granted the new probationary legal status could be living indefinitely as a second class of Americans, allowed to remain in the U.S. but unable to vote, enroll in Medicare or receive federal student loans.

Another issue involves establishing an exit-visa system to track when people leave the country. The proposal calls for exit visas at seaports and airports, but does not specify whether they also would be required at land border crossings, which could be considerably more expensive. A system for tracking when people leave is a priority for the senators, because about 40% of the country?s estimated 11 million illegal immigrants entered with a legal visa and overstayed.

Even before the bipartisan plan?s release, immigration experts have said the chances for reform are better than in previous years.

?When both ends of Pennsylvania Avenue are talking about the issue in calm tones but with a sense of urgency, that is the makings for legislative action,? said Angela Kelley, an expert on immigration policy at the Center for American Progress, a liberal think tank in Washington.

Both the White House and lawmakers seem to be moving fast to get a bill introduced, Kelley said, adding: ?The players are about as caffeinated as I?ve seen them.?

Los Angeles Times

Source: http://ktla.com/2013/01/27/senators-agree-on-immigration-plan-that-gives-legal-status-to-millions/

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The Importance of an Annual Skin Cancer Screening | Sarasota Skin ...

Filed in Uncategorized on January 28, 2013 with no comments





When it comes to skin cancer, you cannot afford to take any chances, especially if you live in sunny Florida. That is why it is never too soon to visit a dermatologist at Sarasota Skin and Cancer Center for an annual skin cancer screening.

Skin cancer is highly curable if detected early. Although the risk of developing the disease is greater for people over 50 years old or for those with fair skin, people of all ages and complexions can get it. When allowed to fully progress, skin cancer can lead to permanent disfigurement and even death.

Sarasota Skin can help you stay healthy by providing you with an annual skin cancer screening along with your regular dermatology visit. A screening usually involves early detection of skin cancer through the inspection of freckles, moles and other skin abnormalities.

During the screening, you must fully undress so the dermatologist can inspect your entire skin surface for any signs of cancerous growths. These growths can include rashes, lesions or a mole that is atypical. An atypical mole is one that is greater than the diameter of a pencil eraser in size, especially light or dark in tone, asymmetrical or actively bleeding. If your dermatologist discovers an atypical mole on your skin, she will perform a biopsy.

A biopsy is a relatively painless procedure. The dermatologist removes a small part of the atypical mole and inspects it for cancer. Surgical removal of the mole only takes place if the mole is determined to be cancerous.

Schedule your routine skin cancer screening with Sarasota Skin today. This small, once-a-year examination could save your life.

Source: http://sarasotaskinandlaser.com/2013/01/28/the-importance-of-an-annual-skin-cancer-screening/

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Monday, January 28, 2013

California still hasn't bought land for bullet train route

Construction of California's high-speed rail network is supposed to start in just six months, but the state hasn't acquired a single acre along the route and faces what officials are calling a challenging schedule to assemble hundreds of parcels needed in the Central Valley.

The complexity of getting federal, state and local regulatory approvals for the massive $68-billion project has already pushed back the start of construction to July from late last year. Even with that additional time, however, the state is facing a risk of not having the property to start major construction work near Fresno as now planned.

It hopes to begin making purchase offers for land in the next several weeks. But that's only the first step in a convoluted legal process that will give farmers, businesses and homeowners leverage to delay the project by weeks, if not months, and drive up sales prices, legal experts say.

One major stumbling block could be valuing agricultural land in a region where prices have been soaring, raising property owners' expectations far above what the state expects to pay.

"The reality is that they are not going to start in July," said Anthony Leones, a Bay Area attorney who has represented government agencies as well as property owners in eminent domain cases.

State high-speed rail officials say it won't be easy, but they can acquire needed property and begin the project on time.

"It is a challenge," said Jeff Morales, the rail agency's chief executive. "It is not unlike virtually any project. The difference is the scale of it."

Quickly acquiring a new rail corridor is crucial to the project, which Gov. Jerry Brown touted last week as the latest symbol of California's tradition of dreaming big and making major investments in its future.

Delays in starting construction could set in motion a chain reaction of problems that would jeopardize the politically and financially sensitive timetable for building the $6-billion first leg of the system. Under its deal with the Obama administration, which is pushing the project as an integral part of its economic and transportation agenda, the state must complete the first 130 miles of rail in the Central Valley by 2018, an aggressive schedule that would require spending about $3.6 million every day.

California voters in 2008 approved plans for a 220-mph bullet train system that would initially link the Bay Area and Southern California at a cost of $32 billion, less than half the estimated cost of the project.

If the construction schedule slips, costs could grow and leave the state without enough money to complete the entire first segment. Rail agency documents acknowledge initial construction may not get as close to Bakersfield in the southern Central Valley as planned.

In addition to property, the rail authority still needs permits from the Army Corps of Engineers and approval by the San Joaquin Valley Air Pollution Control District, two more potential choke points that Morales says can be navigated.

The land purchases are waiting on the hiring of a team of specialized contractors, but they cannot start their work until the rail agency gets approval from another branch of the state bureaucracy. About 400 parcels are needed for the first construction segment, a 29-mile stretch from Madera to Fresno.

The formal offers will start an eminent domain action, the legal process for seizing land from private owners. The owners have 30 days to consider the offer, and then the state must go through a series of steps that can add 100 more days of appeals and hearings, assuming the state can get on the court calendar, according to Robert Wilkinson, an eminent domain litigator in Fresno. If the state fails to convince a judge that a quick takeover of property is justified, formal trials could stretch on for 18 months, he added.

"I would think a lot of these are going to end up in litigation," he said. "It is a tight schedule, no question about it."

Indeed, the rail authority's formal right-of-way plan indicates it does not expect to acquire the first properties until Sept. 15, despite other documents that indicate construction would start in July. Rail officials said they padded the schedule to avoid claims for additional payments by construction contractors should land not be available by July.

Last month, the federal Government Accountability Office reported that about 100 parcels were at risk of not being available in time for construction.

That assessment was based on information the office collected last August. Susan Fleming, a GAO investigator, testified at a House hearing last month: "Not having the needed right of way could cause delays as well as add to project costs."

Morales said in a recent interview that he would not argue with the warning in the GAO report but still sees nothing that would delay the start of construction. Technically, the rail authority could meet the July target date by beginning demolition or other construction on a single piece of property, he said.

Anja Raudabaugh, executive director of the Madera County Farm Bureau, which is suing to halt the project under the California Environmental Quality Act, said the rail authority will face strong opposition to condemnation proceedings in the Central Valley. The bureau has hired a condemnation expert to help battle the land seizures.

"It is a harried mess," she said.

She noted that agricultural land prices rose rapidly last year across the nation. In the Central Valley, the average price of farmland is $28,000 per acre, while the rail authority's budget anticipates an average price of $8,000 per acre, she said.

Kole Upton, an almond farmer who leads the rail watchdog group Preserve Our Heritage, questioned the rail agency's expertise in conducting complex appraisals of agricultural land that has orchards, irrigation systems and processing facilities.

"I am not sure this thing has been well thought out by people who have a deep understanding of agriculture," Upton said. "I live on my farm, and my son lives on my farm. My dad started it after World War II. This is our heritage and our future."

Morales said he believes the agency's budget for property acquisitions is adequate and he did not want to negotiate prices publicly.

"We don't think we are wildly off," he said.

ralph.vartabedian@latimes.com

Source: http://feeds.latimes.com/~r/latimes/news/science/~3/v_ZEBwRHTMc/la-me-bullet-land-20130127,0,3717130.story

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Sunday, January 27, 2013

Obama: Tough call on letting a son play football

WASHINGTON (AP) ? President Barack Obama is a big football fan with two daughters, but if he had a son, he says he'd "have to think long and hard" before letting him play because of the physical toll the game takes.

"I think that those of us who love the sport are going to have to wrestle with the fact that it will probably change gradually to try to reduce some of the violence," Obama tells The New Republic.

"In some cases, that may make it a little bit less exciting, but it will be a whole lot better for the players, and those of us who are fans maybe won't have to examine our consciences quite as much."

In an interview in the magazine's Feb. 11 issue, Obama said he worries more about college players than he does about those in the NFL.

"The NFL players have a union, they're grown men, they can make some of these decisions on their own, and most of them are well-compensated for the violence they do to their bodies," Obama said. "You read some of these stories about college players who undergo some of these same problems with concussions and so forth and then have nothing to fall back on. That's something that I'd like to see the NCAA think about."

NFL spokesman Greg Aiello responded Sunday, "We have no higher priority than player health and safety at all levels of the game."

Source: http://news.yahoo.com/obama-tough-call-letting-son-play-football-134811632--spt.html

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Anonymous hijacks federal website to avenge activist's death

13 hrs.

WASHINGTON???The hacker-activist group Anonymous says it hijacked the website of the U.S. Sentencing Commission to avenge the death of Aaron Swartz, an Internet activist who committed suicide. The FBI is investigating.

The website of the commission, an independent agency of the judicial branch (http://www.ussc.gov), was taken over early Saturday and replaced with a message warning that when Swartz killed himself two weeks ago "a line was crossed."

The hackers say they've infiltrated several government computer systems and copied secret information that they now threaten to make public.

Family and friends of Swartz, who helped create Reddit and RSS, say he killed himself after he was hounded by federal prosecutors. Officials say he helped post millions of court documents for free online, and that he illegally downloaded millions of academic articles from an online clearinghouse.

The FBI's Richard McFeely, executive assistant director of the agency's?Criminal, Cyber, Response, and Services Branch, said in a statement that "we were aware as soon as it happened and are handling it as a criminal investigation. We are always concerned when someone illegally accesses another person's or government agency's network."

Hours after the hijacking, pages on the USSC.gov website were available only sporadically.

This report was updated by NBC News.

? 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Source: http://www.nbcnews.com/technology/technolog/anonymous-hijacks-federal-website-protest-activist-aaron-swartzs-death-1C8125283

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Saturday, January 26, 2013

Davos summit ends with warnings on global economy

DAVOS, Switzerland (AP) -- The crisis mood is gone, but that doesn't mean you can slip back into your old ways ? that's the message from top international finance officials wrapping up the World Economic Forum in Davos, Switzerland.

They warned governments Saturday against letting their relief over an improved economic climate turn into complacency over reforms many want to see in order to sustain a still-uncertain recovery.

"Do not relax," International Monetary Fund head Christine Lagarde urged at a closing panel on the economic outlook.

She said the IMF outlook for a "fragile and timid" recovery depended on officials in the powerhouse economies of Europe, the U.S. and Japan making "the right decisions."

Her comments came at the end of the gathering of 2,500 business, financial and political leaders that took place in a more upbeat atmosphere than last year.

Fears over the breakup the euro currency union have abated, while the U.S. has avoided the so-called "fiscal cliff" of automatic tax increases and spending cuts that threatened to push the world's largest economy back into recession.

With those bullets dodged, there are fears that governments may ease up on the measures to improve growth and reduce debt that many institutions such as the IMF are calling for.

The IMF estimates that the world economy will grow about 3.5 percent this year, modestly better than last year's 3.2 percent. Yet the improvement is uneven. The eurozone and Japan are in recession, but the U.S. is growing, and emerging economies such as China are expanding much more quickly.

The developed world is still recovering from the shock of the financial crisis, which began in 2007 when U.S. banks revealed heavy losses related to mortgages handed out to people with shaky credit. With banks around the world teetering, the world economy slid into deepest recession since World War II and the recovery since has been unspectacular.

Like last year, Europe and specifically the debt problems of the 17 European Union countries that use the euro, was a key focus in Davos.

Lagarde said officials in Europe have to see through reforms to prevent failed banks from adding to government debt through bailouts. Progress towards a "banking union" that would impose tougher, centralized supervision of banks to ward off failures and bailouts has been slow.

Lagarde said the eurozone was still in "a very fragile situation" that was made more risky through a slow decision-making process and occasional backtracking on initiatives.

In addition, she said U.S. has to sort out its budget dispute between Congress and President Barack Obama. Up against a New Year's deadline, the two sides put off much of their dispute for a few months.

"Good decisions have been made," she said. "Sometimes at the last minute, as in the United States, sometimes laborious and confusingly as in the eurozone," she said. "In 2013 they have to keep up the momentum.

Angel Gurria, the secretary general of the Organization for Economic Cooperation and Development, echoed Lagarde, saying "let's fight complacency with everything we've got, let's continue with the reform process so we can consolidate this hesitant recovery."

Akira Amari, Japan's minister of economic and fiscal policy, underlined the determination of the newly elected government of Prime Minister Shenzo Abe to jolt the country's economy out of its stagnation.

And the head of Canada's central bank, Mark Carney, said the world's major economies, so far supported by central bank stimulus such as low interest rates, needed to "achieve escape velocity" in which growth becomes self-sustaining. Carney, who is due to become governor of the Bank of England in June, said the eurozone had been stabilized by an offer by the European Central Bank to buy government bonds of indebted countries and lower their borrowing costs.

Yet Carney said the ECB move was "crucial but not decisive" without progress on banking union and reforms to increase growth.

He said policy makers "have to finish the job they have started."

Source: http://news.yahoo.com/davos-summit-ends-warnings-global-152224108.html

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By popular demand, Sony releases Jelly Bean alpha build for Xperia T

By popular demand, Sony releases Jelly Bean alpha build for Xperia T

Because the first time proved to be such a charm for Android developers, Sony's once again offering Xperia owners an official alpha ROM. And this time, it's of the Jelly Bean variety. But before you rush to the source and flash your cares away, there are a few caveats we need to cover. For starters, the price of entry to this Android 4.1 test run is an unlocked Xperia T. Not the TX, not the V, not the S, so don't even try it. You'll also have to sign away your legal right (via the company's unlock utility) to whine and demand compensation should your handset brick in the process. Once those hurdles have been cleared, you're almost home free to flash -- so long as you don't mind an unfinished UI, non-functioning radios for voice, WiFi, Bluetooth and NFC, in addition to a complete lack of Gapps. Oh, and did we mention your unlocked T won't be privy to the official Jelly Bean update once it hits? Yeah, there's that too. Basically, you shouldn't look to this for a daily driver. In fact, it's probably best to leave this one to the big boys.

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Source: Sony Mobile

Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/zFaCqBfMF4Y/

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SAG honoree Van Dyke glad he made someone smile

LOS ANGELES (AP) ? Forget dishonest modesty. Dick Van Dyke seems nothing short of gobsmacked about receiving the life-achievement honor at Sunday's Screen Actors Guild Awards.

"They must've gotten to the 'V's," he joked.

Though probably best known for "The Dick Van Dyke Show" (1961-66) and Walt Disney's big-screen musical "Mary Poppins" (1964), the 87-year-old Van Dyke said that, with the SAG Award, "I kind of find a home. I've always been a bit of an orphan, because actors say, 'Well, he's more of a dancer.' And dancers say, 'No. He's really a singer.' And singers say, 'No. He's an actor.' So, now I've got a home. I can actually refer to these people as my peers."

His career has spanned eight decades, starting with work as a disc jockey and a standup comic in the late '40s. He even worked as a national television morning-show host, with no less than Walter Cronkite serving as his news anchor. But perhaps Van Dyke's most critical career break came in 1960, when director Gower Champion hired him as the male lead opposite Chita Rivera in the new Broadway-bound stage musical "Bye Bye Birdie."

Van Dyke had no professional dance experience, and out-of-town tryouts did not go well. "They were going to fire me in Philadelphia," Van Dyke recalled during a recent interview at the Screen Actors Guild headquarters. "I was still nervous and tight."

Nevertheless, Champion refused to terminate Van Dyke, who would go on to New York with Rivera, and win a Tony award for his performance.

Just about a year later, Van Dyke was starring on his own sitcom, in the role of a television-comedy writer on "The Dick Van Dyke Show." Three prime-time Emmys for Van Dyke and more than 50 years later, the series remains revered by many critics as one of the earliest models of great workplace comedy.

"That whole show was the genius of (show creator and writer) Carl Reiner, who said he wrote Jewish comedy for gentile actors," Van Dyke said.

During the series' run, Van Dyke also enjoyed big-screen hits, including the 1963 "Birdie" movie and the 1964 all-star comedy, "What a Way to Go!" But biggest of all was "Mary Poppins," in which he introduced the Oscar-winning song "Chim Chim Cher-ee," but for which he also took, and still takes, serious ribbing, even from his leading lady and longtime pal Julie Andrews.

"She still kids me about my so-called Cockney accent," Van Dyke said, adding a line of defense: "I had an Irish coach ... so he wasn't any better than me."

The first sitcom and "Poppins" are likely to be his most enduring works, but Van Dyke has never stopped working, with other TV series (including a short-lived 1976 variety show, "Van Dyke and Company," which earned him a fourth prime-time Emmy), stage appearances and films. "My favorite unknown movie is 'The Comic,'" Van Dyke said, referring to the 1969 drama, which reunited him with "Van Dyke Show'''s Reiner, who directed. "We felt we actually captured the feel of the silent era." The film is loosely based on the life of silent legend Buster Keaton, who Van Dyke knew personally, adored, and at whose funeral he delivered the eulogy. The two funny men also shared a personal demon: alcoholism.

These days, Van Dyke sings with his vocal group, The Vantasix, and is enjoying life in Los Angeles with his new wife, makeup artist Arlene Silver, who he happened to meet seven years ago __ at the SAG Awards.

Van Dyke's favorite professional life achievement?

"That I made 'em smile," he replied, smiling himself. "And I think that's asking enough."

The 19th Annual Screen Actors Guild Awards is set for Sunday in Los Angeles.

Source: http://news.yahoo.com/sag-honoree-van-dyke-glad-made-someone-smile-220711223.html

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Texting Woman Falls Into Canal in UK

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Stevie Wonder to perform Super Bowl weekend

NEW ORLEANS (AP) ? Stevie Wonder is the latest in a parade of entertainers that will perform in New Orleans Super Bowl weekend.

The Rock 'n' Roll Hall of Fame singer is headlining an outdoor concert near the Wyndham Riverfront Hotel on Feb. 2, the evening before the big game.

A spokeswoman for the event said Friday that Bud Light is sponsoring the concert. It will include performances by Texas blues guitarist Gary Clark Jr. and others.

Also that night, Justin Timberlake is appearing in his first concert in more than four years during "DIRECTV Super Saturday Night," an invitation-only concert being held after DIRECTV's "Celebrity Beach Bowl" that will include a performance by Miami rapper Pitbull.

"Celebrity Beach Bowl" is a star-studded flag football match that will include rapper Snoop Dogg and actor Neil Patrick Harris.

Source: http://news.yahoo.com/stevie-wonder-perform-super-bowl-weekend-203803656.html

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Friday, January 25, 2013

Newly discovered 'scarecrow' gene might trigger big boost in food production

Jan. 24, 2013 ? With projections of 9.5 billion people by 2050, humanity faces the challenge of feeding modern diets to additional mouths while using the same amounts of water, fertilizer and arable land as today.

Cornell University researchers have taken a leap toward meeting those needs by discovering a gene that could lead to new varieties of staple crops with 50 percent higher yields.

The gene, called Scarecrow, is the first discovered to control a special leaf structure, known as Kranz anatomy, which leads to more efficient photosynthesis. Plants photosynthesize using one of two methods: C3, a less efficient, ancient method found in most plants, including wheat and rice; and C4, a more efficient adaptation employed by grasses, maize, sorghum and sugarcane that is better suited to drought, intense sunlight, heat and low nitrogen.

"Researchers have been trying to find the underlying genetics of Kranz anatomy so we can engineer it into C3 crops," said Thomas Slewinski, lead author of a paper that appeared online in the journal Plant and Cell Physiology. Slewinski is a postdoctoral researcher in the lab of senior author Robert Turgeon, professor of plant biology.

The finding "provides a clue as to how this whole anatomical key is regulated," said Turgeon. "There's still a lot to be learned, but now the barn door is open and you are going to see people working on this Scarecrow pathway."

The promise of transferring C4 mechanisms into C3 plants has been fervently pursued and funded on a global scale for decades, he added.

If C4 photosynthesis is successfully transferred to C3 plants through genetic engineering, farmers could grow wheat and rice in hotter, dryer environments with less fertilizer, while possibly increasing yields by half, the researchers said.

C3 photosynthesis originated at a time in Earth's history when the atmosphere had a high proportion of carbon dioxide. C4 plants have independently evolved from C3 plants some 60 times at different times and places. The C4 adaptation involves Kranz anatomy in the leaves, which includes a layer of special bundle sheath cells surrounding the veins and an outer layer of cells called mesophyll. Bundle sheath cells and mesophyll cells cooperate in a two-step version of photosynthesis, using different kinds of chloroplasts.

By looking closely at plant evolution and anatomy, Slewinski recognized that the bundle sheath cells in leaves of C4 plants were similar to endodermal cells that surrounded vascular tissue in roots and stems.

Slewinski suspected that if C4 leaves shared endodermal genes with roots and stems, the genetics that controlled those cell types may also be shared. Slewinski looked for experimental maize lines with mutant Scarecrow genes, which he knew governed endodermal cells in roots.

When the researchers grew those plants, they first identified problems in the roots, then checked for abnormalities in the bundle sheath. They found that the leaves of Scarecrow mutants had abnormal and proliferated bundle sheath cells and irregular veins.

In all plants, an enzyme called RuBisCo facilitates a reaction that captures carbon dioxide from the air, the first step in producing sucrose, the energy-rich product of photosynthesis that powers the plant. But in C3 plants RuBisCo also facilitates a competing reaction with oxygen, creating a byproduct that has to be degraded, at a cost of about 30-40 percent overall efficiency. In C4 plants, carbon dioxide fixation takes place in two stages. The first step occurs in the mesophyll, and the product of this reaction is shuttled to the bundle sheath for the RuBisCo step. The RuBisCo step is very efficient because in the bundle sheath cells, the oxygen concentration is low and the carbon dioxide concentration is high. This eliminates the problem of the competing oxygen reaction, making the plant far more efficient.

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The above story is reprinted from materials provided by Cornell University, via EurekAlert!, a service of AAAS.

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


Journal Reference:

  1. T. L. Slewinski, A. A. Anderson, C. Zhang, R. Turgeon. Scarecrow Plays a Role in Establishing Kranz Anatomy in Maize Leaves. Plant and Cell Physiology, 2012; 53 (12): 2030 DOI: 10.1093/pcp/pcs147

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/~3/YICTlcGjOiE/130124134051.htm

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Thursday, January 24, 2013

How Obama Could Nix the Keystone Pipeline (And Why He Won't)

President Obama will be confronted with the first big policy decision of his second term where environmentalists and business interests are at odds: the Keystone XL oil pipeline. Despite promising to act on climate change in his inaugural speech, all signs point to the controversial project going forward.

RELATED: Gore: Obama Has 'Failed to Stand Up' on Global Warming

On Wednesday,?a majority of Senators?(44 Republicans and nine Democrats) sent a letter to President Obama urging him to move forward on Keystone XL, a massive pipeline that would carry oil from Canadian tar sands to American refineries in the Gulf Coast. Nebraska Gov.?Dave Heineman gave his approval?to the plans on Tuesday, leaving Keystone's fate in Obama's hands. In January 2012, the President rejected initial plans for the pipeline, saying the deadline for approval was rushed. But ever since energy company TransCanada proposed a new route, the President has seemed to warm up to the plans.?Proponents of Keystone XL say it will create thousands of jobs and bring down the cost of fuel. Opponents say it's an environmentalist's nightmare that would extend our reliance on a particularly dirty source of fossil fuels. Looking at the President's options, he certainly has avenues for stymying the Keystone XL. But many factors suggest that he won't.?

RELATED: Here's Whom Climate Change Will Screw Over the Most

How Obama could nix the Keystone XL

RELATED: Benefits of Wind Power Questioned

For the Keystone XL to move forward, the State Department needs to perform an environmental review. That report is expected to land on Obama's desk before April. And it just so happens that one of Washington's most vocal climate hawks, John Kerry, will be heading the State Department during this process. As Think Progress's Joe Room notes, Kerry has issued some of the strongest words on climate change of any senator. Here's a speech he gave last summer about the silence on global warming in the nation's capital:?

Climate change is one of two or three of the most serious threats our country now faces, if not the most serious, and the silence that has enveloped a once robust debate is staggering for its irresponsibility?.

I hope we confront the conspiracy of silence head-on and allow complacence to yield to common sense, and narrow interests to bend to the common good. Future generations are counting on us.

The State Department remains cagey about their current stance on the pipeline?a spokesperson wouldn't tell Reuters reporters how the department felt one way or the other. If Obama wanted to nix Keystone XL, he could let Kerry take the lead on flunking the project's environmental review.?

RELATED: How Global Warming Affects National Security; Saudi Arabia Wants to Be Green

Why Obama will most likely approve the Keystone XL

RELATED: Texas's Continuing Drought; Curbing Coal

Environmentalists would like to think Obama's inaugural promise to "respond to the threat of climate change" means that he'll stop the Keystone XL. But Obama's record on the issue leaves little room for optimism. Obama was?against?the?pipeline?before he was?for it,?before he ultimately?put off making a decision until after the election. Last year he spoke favorably about the project while visiting a portion of the Keystone pipeline in Oklahoma. On that?occasion?Obama said, "We need to make sure that we have energy security and aren't just relying on Middle East sources."

When we look at financial contributions Obama has accepted, the President seems a bit too cozy with oil companies to deliver a fateful blow on the Keystone XL. As green energy researcher Steve Horn noted earlier this week, Obama's inauguration was funded in part by ExxonMobil. Still, many observers predict that Obama will get tough on climate change?just not on the Keystone XL issue.?National Journal's Catherine Hollander and Erin Mershon?made a compelling case that Obama will focus on tightening EPA emissions standards in his second term. And in a lengthy report for Politico, Darren Samuelsohn also predicts that the Obama administration will focus on small regulatory victories instead of big skirmishes:

Energy insiders say the White House will dribble out executive actions and federal rules over the next four years? ? the same low-key, bureaucratic approach the administration has taken since 2009.

According to analysts?cited by?The Guardian,?the President appears primed to approve the plans early in his second term. ?

Source: http://news.yahoo.com/obama-could-nix-keystone-pipeline-why-wont-193417036.html

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Low Price Carlisle All Trail ATV Tire 23X10.50 12 Automotive 2012 ...

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Cisco Builds Videoconferencing System for Ukraine's State Tax ...

cisco-logoCisco has provided a communications system for video and audio conferencing, data sharing, text-to-speech, decision support management and uninterrupted power supply for the Ukrainian state tax service.

?The project of building a highly secure special communications system for STSU has been performed within very limited time,? said Vladislav Maslo,?AMI CEO. ?For instance, in just seven working days we launched the central system, connected all offices, tuned and verified the solution.?

According to a company release, AMI, a Cisco? select certified partner in Ukraine, provided 43 STSU regional offices across the Ukraine with the system.

Alexander Chemerys,?Cisco Ukraine account manager, said the company?s video services supporting interactive employee collaboration are becoming more popular with?Ukrainian?government?agencies because they work to save time and?eliminate travelling expenses.

The STSU videoconferencing system includes HD transmission and recording and supports up to five conferences with 40 participants.

The system includes two Cisco TelePresence? MCU 5320 video servers, the Cisco TelePresence video communication server, Cisco VCSE external calling server, Cisco TelePresence content server and Cisco TelePresence management suite.

The STSU conference hall has three rotating cameras with 12? optical zoom that automatically focuses on the person speaking and shows the close-up image on video terminals.

A decision support system helps users plan meetings, register minutes and provides access to sections of video library for better execution and control.

Source: http://blog.executivebiz.com/2013/01/cisco-builds-videoconferencing-system-for-ukraines-state-tax-service-alexander-chemerys-comments/

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Building a Professional Online Presence | Career Rocketeer ...

Build Online PresenceJob seekers often forget that employers are highly likely these days to Google potential job candidates to see what else they might learn about a potential hire. I?ve written before that what they find online, will either help or hurt your chances of receiving an offer.? I?ve written about being careful of what you post so that careless, crass, or unprofessional Google search results don?t throw you out of consideration.

Most times, you will not know why interest in your background stalled, the employer simply doesn?t move forward. They won?t tell you it?s because of something they found online. Carefully curating an online presence that enhances your attractiveness as a new employee can help.

How can you do that?

Here are a few ideas and suggestions?

Comment on industry blogs and articles. Writing professional, thoughtful, and value-added comments on industry or field related blog posts or online articles can add stature to your career. It shows that you care about your industry, that you?re knowledgeable, and that you contribute to the discussion. Those comments are also very likely to come up in a Google search as well!

Maximize your LinkedIn profile. One of the most likely search results for anyone, is their LinkedIn profile. It often comes up as one of the first few items. Creating a complete and compelling profile is one of the best ways to create a positive impression for an employer. There is a lot of information available on this site and many others about how to make the most of the impression you create.

Create a professional Twitter stream. Twitter can be a powerful tool to create a professional presence online. It can also damage a reputation if used carelessly. Rather than tweeting where you got your last cup of coffee or ranting about politics or celebrities? use it to share articles you like about your field or industry. Discuss related business trends and Re-Tweet other related news or pieces of information that add value for your career.

Submit articles to industry or trade publications. Many trade journals are always looking for good relevant content for their websites or other online publications. Writing compelling pieces related to their focus will often give you opportunities to have them post the piece online. It never hurts to ask! Offering to write a piece for other blogs often works as well.

Start a blog. Creating a blog relevant to your field can be a very effective way to build a professional presence online. Writing about topics relevant to your career shows that you are ?plugged in?, that you care about your field, and can communicate effectively. Blogs often become very visible on Google searches as well.

Anything you add online ought to be well written, free of foul language, free of bitterness or harsh criticisms, and free of personal attacks. However, by persistently seeking opportunities and adding to relevant online discussions can enhance your professional image when a potential employers searches your name on Google.

Be deliberate about your online activity and you may find it helps your job search!

Harry Urschel has over 20 years experience as a technology recruiter in Minnesota. He currently operates as e-Executives, writes a blog for Job Seekers called The Wise Job Search, and can be found on Twitter as @eExecutives.

Source: http://careerrocketeer.com/2013/01/building-a-professional-online-presence.html

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Putting the squeeze on cells

Putting the squeeze on cells [ Back to EurekAlert! ] Public release date: 23-Jan-2013
[ | E-mail | Share Share ]

Contact: Caroline McCall, MIT Media Relations
cmccall5@mit.edu
Massachusetts Institute of Technology

By deforming cells, researchers can deliver RNA, proteins and nanoparticles for many applications

CAMBRIDGE, Mass. Living cells are surrounded by a membrane that tightly regulates what gets in and out of the cell. This barrier is necessary for cells to control their internal environment, but it makes it more difficult for scientists to deliver large molecules such as nanoparticles for imaging, or proteins that can reprogram them into pluripotent stem cells.

Researchers from MIT have now found a safe and efficient way to get large molecules through the cell membrane, by squeezing the cells through a narrow constriction that opens up tiny, temporary holes in the membrane. Any large molecules floating outside the cell such as RNA, proteins or nanoparticles can slide through the membrane during this disruption.

Using this technique, the researchers were able to deliver reprogramming proteins and generate induced pluripotent stem cells with a success rate 10 to 100 times better than any existing method. They also used it to deliver nanoparticles, including carbon nanotubes and quantum dots, which can be used to image cells and monitor what's happening inside them.

"It's very useful to be able to get large molecules into cells. We thought it might be interesting if you could have a relatively simple system that could deliver many different compounds," says Klavs Jensen, the Warren K. Lewis Professor of Chemical Engineering, professor of materials science and engineering, and a senior author of a paper describing the new device in this week's issue of the Proceedings of the National Academy of Sciences.

Robert Langer, the David H. Koch Institute Professor at MIT, is also a senior author of the paper. Lead authors are chemical engineering graduate student Armon Sharei, Koch Institute research scientist Janet Zoldan, and chemical engineering research associate Andrea Adamo.

A general approach

Biologists have previously developed several ways to get large molecules into cells, but all of them have drawbacks. DNA or RNA can be packaged into viruses, which are adept at entering cells, but that approach carries the risk that some of the viral DNA will get integrated into the host cell. This method is commonly used in lab experiments but has not been approved by the FDA for use in human patients.

Another way to sneak large molecules into a cell is to tag them with a short protein that can penetrate the cell membrane and drag the larger cargo along with it. Alternatively, DNA or proteins can be packaged into synthetic nanoparticles that can enter cells. However, these systems often need to be re-engineered depending on the type of cell and material being delivered. Also, with some nanoparticles much of the material ends up trapped in protective sacs called endosomes inside the cell, and there can be potential toxic side effects.

Electroporation, which involves giving cells a jolt of electricity that opens up the cell membrane, is a more general approach but can be damaging to both cells and the material being delivered.

The new MIT system appears to work for many cell types so far, the researchers have successfully tested it with more than a dozen types, including both human and mouse cells. It also works in cells taken directly from human patients, which are usually much more difficult to manipulate than human cell lines grown specifically for lab research.

The new device builds on previous work by Jensen and Langer's labs, in which they used microinjection to force large molecules into cells as they flowed through a microfluidic device. This wasn't as fast as the researchers would have liked, but during these studies, they discovered that when a cell is squeezed through a narrow tube, small holes open in the cell membrane, allowing nearby molecules to diffuse into the cell.

To take advantage of that, the researchers built rectangular microfluidic chips, about the size of a quarter, with 40 to 70 parallel channels. Cells are suspended in a solution with the material to be delivered and flowed through the channel at high speed about one meter per second. Halfway through the channel, the cells pass through a constriction about 30 to 80 percent smaller than the cells' diameter. The cells don't suffer any irreparable damage, and they maintain their normal functions after the treatment.

Special delivery

The research team is now further pursuing stem cell manipulation, which holds promise for treating a wide range of diseases. They have already shown that they can transform human fibroblast cells into pluripotent stem cells, and now plan to start working on delivering the proteins needed to differentiate stem cells into specialized tissues.

Another promising application is delivering quantum dots nanoparticles made of semiconducting metals that fluoresce. These dots hold promise for labeling individual proteins or other molecules inside cells, but scientists have had trouble getting them through the cell membrane without getting trapped in endosomes.

In a paper published in November, working with MIT graduate student Jungmin Lee and chemistry professor Moungi Bawendi, the researchers showed that they could get quantum dots inside human cells grown in the lab, without the particles becoming confined in endosomes or clumping together. They are now working on getting the dots to tag specific proteins inside the cells.

The researchers are also exploring the possibility of using the new system for vaccination. In theory, scientists could remove immune cells from a patient, run them through the microfluidic device and expose them to a viral protein, and then put them back in the patient. Once inside, the cells could provoke an immune response that would confer immunity against the target viral protein.

###

The research was funded by the National Institutes of Health and the National Cancer Institute.

Written by: Anne Trafton, MIT News Office



[ 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.


Putting the squeeze on cells [ Back to EurekAlert! ] Public release date: 23-Jan-2013
[ | E-mail | Share Share ]

Contact: Caroline McCall, MIT Media Relations
cmccall5@mit.edu
Massachusetts Institute of Technology

By deforming cells, researchers can deliver RNA, proteins and nanoparticles for many applications

CAMBRIDGE, Mass. Living cells are surrounded by a membrane that tightly regulates what gets in and out of the cell. This barrier is necessary for cells to control their internal environment, but it makes it more difficult for scientists to deliver large molecules such as nanoparticles for imaging, or proteins that can reprogram them into pluripotent stem cells.

Researchers from MIT have now found a safe and efficient way to get large molecules through the cell membrane, by squeezing the cells through a narrow constriction that opens up tiny, temporary holes in the membrane. Any large molecules floating outside the cell such as RNA, proteins or nanoparticles can slide through the membrane during this disruption.

Using this technique, the researchers were able to deliver reprogramming proteins and generate induced pluripotent stem cells with a success rate 10 to 100 times better than any existing method. They also used it to deliver nanoparticles, including carbon nanotubes and quantum dots, which can be used to image cells and monitor what's happening inside them.

"It's very useful to be able to get large molecules into cells. We thought it might be interesting if you could have a relatively simple system that could deliver many different compounds," says Klavs Jensen, the Warren K. Lewis Professor of Chemical Engineering, professor of materials science and engineering, and a senior author of a paper describing the new device in this week's issue of the Proceedings of the National Academy of Sciences.

Robert Langer, the David H. Koch Institute Professor at MIT, is also a senior author of the paper. Lead authors are chemical engineering graduate student Armon Sharei, Koch Institute research scientist Janet Zoldan, and chemical engineering research associate Andrea Adamo.

A general approach

Biologists have previously developed several ways to get large molecules into cells, but all of them have drawbacks. DNA or RNA can be packaged into viruses, which are adept at entering cells, but that approach carries the risk that some of the viral DNA will get integrated into the host cell. This method is commonly used in lab experiments but has not been approved by the FDA for use in human patients.

Another way to sneak large molecules into a cell is to tag them with a short protein that can penetrate the cell membrane and drag the larger cargo along with it. Alternatively, DNA or proteins can be packaged into synthetic nanoparticles that can enter cells. However, these systems often need to be re-engineered depending on the type of cell and material being delivered. Also, with some nanoparticles much of the material ends up trapped in protective sacs called endosomes inside the cell, and there can be potential toxic side effects.

Electroporation, which involves giving cells a jolt of electricity that opens up the cell membrane, is a more general approach but can be damaging to both cells and the material being delivered.

The new MIT system appears to work for many cell types so far, the researchers have successfully tested it with more than a dozen types, including both human and mouse cells. It also works in cells taken directly from human patients, which are usually much more difficult to manipulate than human cell lines grown specifically for lab research.

The new device builds on previous work by Jensen and Langer's labs, in which they used microinjection to force large molecules into cells as they flowed through a microfluidic device. This wasn't as fast as the researchers would have liked, but during these studies, they discovered that when a cell is squeezed through a narrow tube, small holes open in the cell membrane, allowing nearby molecules to diffuse into the cell.

To take advantage of that, the researchers built rectangular microfluidic chips, about the size of a quarter, with 40 to 70 parallel channels. Cells are suspended in a solution with the material to be delivered and flowed through the channel at high speed about one meter per second. Halfway through the channel, the cells pass through a constriction about 30 to 80 percent smaller than the cells' diameter. The cells don't suffer any irreparable damage, and they maintain their normal functions after the treatment.

Special delivery

The research team is now further pursuing stem cell manipulation, which holds promise for treating a wide range of diseases. They have already shown that they can transform human fibroblast cells into pluripotent stem cells, and now plan to start working on delivering the proteins needed to differentiate stem cells into specialized tissues.

Another promising application is delivering quantum dots nanoparticles made of semiconducting metals that fluoresce. These dots hold promise for labeling individual proteins or other molecules inside cells, but scientists have had trouble getting them through the cell membrane without getting trapped in endosomes.

In a paper published in November, working with MIT graduate student Jungmin Lee and chemistry professor Moungi Bawendi, the researchers showed that they could get quantum dots inside human cells grown in the lab, without the particles becoming confined in endosomes or clumping together. They are now working on getting the dots to tag specific proteins inside the cells.

The researchers are also exploring the possibility of using the new system for vaccination. In theory, scientists could remove immune cells from a patient, run them through the microfluidic device and expose them to a viral protein, and then put them back in the patient. Once inside, the cells could provoke an immune response that would confer immunity against the target viral protein.

###

The research was funded by the National Institutes of Health and the National Cancer Institute.

Written by: Anne Trafton, MIT News Office



[ 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/2013-01/miot-pts012313.php

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Wednesday, January 23, 2013

The Hilarious Truth on How Facebook Comes Up with Its Annoying New Features

If you've ever wondered how Facebook comes up with those annoying features you hate, wonder no more: Facebook is obviously getting all those silly requests from focus groups! Focus groups who give suggestions like seeing wall posts between people you don't know, having a stranger's comment pop up on your news feed and wanting Facebook to make money from their personal information. Facebook is giving the people what they want! It's the only explanation! More »


Source: http://feeds.gawker.com/~r/gizmodo/full/~3/xT-ZtAWPIzE/the-hilarious-truth-on-how-facebook-comes-up-with-its-annoying-new-features

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NTT DoCoMo announces 12 new mobile devices for the spring, launches Smart Home initiative

NTT DoCoMo announces 12 new mobile devices for the spring, launches Smart Home initiative

Change of season? You can bet NTT DoCoMo has an armload of new devices to announce -- it's almost a tradition. This time around, the Japanese carrier has revealed 10 new smartphones, two tablets and a mobile WiFi hotspot. Large, 4.5 to 5-inch displays and quad-core processors pepper the entire spring smartphone line, but there are a few notable standouts, including the previously leaked LG Optimus G Pro, Huawei's Ascend D2 and the NEC Medias W -- a curious dual-screen smartphone we first saw at MWC 2012. DoCoMo fills its tablet quota with the Sony Xperia Tablet Z and a carrier branded device called the dtab, a 10.1-inch WiFi slab apparently built for DoCoMo's Smart Home initiative. Don't let the name run away with your imagination -- the Japanese carrier is focusing on sharing music, video and digital content between smartphones and other home electronics, not automating your apartment.

The dtab is compatible with a handful of carrier exclusive services, such as the dmarket and DoCoMo cloud. It's not technically part of the carrier's mobile line, but DoCoMo had one more announcement for spring: an HDMI dongle. The SmartTV dstick gives HDTVs access to the carrier's dvideo, danime store and dhits services, and can be controlled with via smartphone or a similarly named tablet. Spring hardware will start hitting Japan on January 25th with the Aquos Phone EX, and continue to roll out through March. Read on for the official press release.

Update: Apparently, we're looking at a different Ascend D2 than the one we saw at CES, one with a smaller screen (4.7-inch 720p vs. 5-inch 1080p) and battery (2150mAh vs. 3000mAh).

Show full PR text

NTT DOCOMO Unveils 12 New Mobile Devices
- 5 Models to Link with Home Electronics and Play Full-HD under New Initiative -

Products & Services

TOKYO, JAPAN, January 22, 2013 --- NTT DOCOMO, INC., announced today its 2013 spring lineup of 12 models that will launch in sequence beginning on January 25. The lineup includes 11 smartphones and tablets, plus one mobile Wi-Fi(R) router. For maximized ease of use, the models feature upgraded versions of numerous popular functions introduced in the 2012 winter lineup.

Some of the new and prominent features of the lineup include:
o.First DOCOMO smartphones capable of full-HD for superb high-definition video.
o.Compatible with DOCOMO's Xi[TM] ("crossy") LTE service for max. downlink of 112.5 Mbps (some areas), the fastest LTE connection in Japan as of January 21.
o.A large selection of models featuring quad-core CPUs for increased enjoyment of mobile games and videos.
o.Many models running on Android[TM] 4.1.
o.Large-capacity batteries (2,000mAh or more) for power-thirsty users.
o.Smartphone model with special safety and security features for preteens.

Also announced today was "docomo Smart Home," an all-new initiative for sharing videos, music and other content between smartphones and home electronics, realizing a convenient new way to enjoy high-definition digital content both at home and on the move.

As part of this initiative, the new spring lineup offers the "dtab," a Wi-Fi-dedicated tablet with special features for DOCOMO services such as the dmarket[TM] portal, and the "SmartTV dstick," a small flash drive-like HDMI device for enjoying movies and animation from dmarket, etc. on large-screen televisions.

In addition, new functions have been added to the Twonky[TM] Beam app, which enables DOCOMO smartphones to play full-HD digital-terrestrial and broadcast-satellite programs that are stored on the user's Blu-ray[TM] recording devices at home.

[See source link for pictures and attachments]

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Comments

Source: DoCoMo

Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/3fHAydwWS78/

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Tuesday, January 22, 2013

A theory of everything won't provide all the answers

We shouldn't be obsessed with finding a theory of everything, says Lisa Randall, one of the world's most prominent theoretical physicists

Doesn't every physicist dream of one neat theory of everything?
There are lots of physicists! I don't think about a theory of everything when I do my research. And even if we knew the ultimate underlying theory, how are you going to explain the fact that we're sitting here? Solving string theory won't tell us how humanity was born.

So is a theory of everything a myth?
It's not that it's a fallacy. It's one objective that will inspire progress. I just think the idea that we will ever get there is a little bit challenging.

But isn't beautiful mathematics supposed to lead us to the truth?
You have to be careful when you use beauty as a guide. There are many theories people didn't think were beautiful at the time, but did find beautiful later - and vice versa. I think simplicity is a good guide: the more economical a theory, the better.

Is it a problem, then, that our best theories of particle physics and cosmology are so messy?
We're trying to describe the universe from 1027 metres down to 10-35 metres, so it's not surprising there are lots of ingredients. The idea that the stuff we're made of should be everything seems quite preposterous. Dark matter and dark energy - these are not crazy ingredients we're adding.

Did the discovery of the Higgs boson - the "missing ingredient" of particle physics - take you by surprise last July?
I was surprised that the Large Hadron Collider experiments reached that landmark. I thought the teams would say something very affirming but the announcement of the discovery was amazing. It was a feat of engineering that they got the collision rate up to what it had to be, and the experiments did a better job at analysing the data.

Are you worried that the Higgs is the only discovery so far at the LHC?
I'm not worried that nothing else exists. But I am worried that the LHC might have too low an energy. Had the Superconducting Super Collider been built in Texas, it would have had almost three times the energy. There is a distinct possibility we'll discover things when the LHC's energy is nearly doubled next year. But it's too early to see signs of warped extra dimensions - they will take longer to find.

What would an extra dimension look like?
The best signature of the warped extra dimensions would be seeing a so-called Kaluza-Klein particle. These are partners of the particles that we know about but they get their momentum from extra dimensions. They would look to us like heavy particles with properties similar to the ones we know, but with bigger masses.

What if we don't see one? Some argue that seeing nothing else at the LHC would be best, as it would motivate new ideas.
I don't know what dream world they are living in. It would be very hard to make the argument to build a higher energy machine based on the fact that you didn't see something.

Profile

Lisa Randall is a professor of physics at Harvard University. Her recent books are Knocking on Heaven's Door (Vintage) and Higgs Discovery: The power of empty space (Bodley Head)

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