Plants Grow Fine Without Gravity


When researchers sent plants to the International Space Station in 2010, the flora wasn't meant to be decorative. Instead, the seeds of these small, white flowers—called Arabidopsis thaliana—were the subject of an experiment to study how plant roots developed in a weightless environment.

Gravity is an important influence on root growth, but the scientists found that their space plants didn't need it to flourish. The research team from the University of Florida in Gainesville thinks this ability is related to a plant's inherent ability to orient itself as it grows. Seeds germinated on the International Space Station sprouted roots that behaved like they would on Earth—growing away from the seed to seek nutrients and water in exactly the same pattern observed with gravity. (Related: "Beyond Gravity.")

Since the flowers were orbiting some 220 miles (350 kilometers) above the Earth at the time, the NASA-funded experiment suggests that plants still retain an earthy instinct when they don't have gravity as a guide.

"The role of gravity in plant growth and development in terrestrial environments is well understood," said plant geneticist and study co-author Anna-Lisa Paul, with the University of Florida in Gainesville. "What is less well understood is how plants respond when you remove gravity." (See a video about plant growth.)

The new study revealed that "features of plant growth we thought were a result of gravity acting on plant cells and organs do not actually require gravity," she added.

Paul and her collaborator Robert Ferl, a plant biologist at the University of Florida in Gainesville, monitored their plants from the Kennedy Space Center in Florida using images sent from the space station every six hours.

Root Growth

Grown on a nutrient-rich gel in clear petri plates, the space flowers showed familiar root growth patterns such as "skewing," where roots slant progressively as they branch out.

"When we saw the first pictures come back from orbit and saw that we had most of the skewing phenomenon we were quite surprised," Paul said.

Researchers have always thought that skewing was the result of gravity's effects on how the root tip interacts with the surfaces it encounters as it grows, she added. But Paul and Ferl suspect that in the absence of gravity, other cues take over that enable the plant to direct its roots away from the seed and light-seeking shoot. Those cues could include moisture, nutrients, and light avoidance.

"Bottom line is that although plants 'know' that they are in a novel environment, they ultimately do just fine," Paul said.

The finding further boosts the prospect of cultivating food plants in space and, eventually, on other planets.

"There's really no impediment to growing plants in microgravity, such as on a long-term mission to Mars, or in reduced-gravity environments such as in specialized greenhouses on Mars or the moon," Paul said. (Related: "Alien Trees Would Bloom Black on Worlds With Double Stars.")

The study findings appear in the latest issue of the journal BMC Plant Biology.


Read More..

Fiscal Cliff Talks: Boehner, Obama Meet Face-to-Face













For the first time in more than three weeks, President Obama and House Speaker John Boehner met face-to-face today at the White House to talk about avoiding the fiscal cliff.


White House Principal Deputy Press Secretary Josh Earnest would offer no details saying only, "The lines of communication remain open."


Erskine Bowles, the co-creator of a debt reducing plan, who was pessimistic a couple weeks ago, said he likes what he's hearing.


"Any time you have two guys in there tangoing, you have a chance to get it done," Bowles said on CBS's "Face the Nation."


The White House afternoon talks, conducted without cameras or any announcement until they were over, came as some Republicans were showing more flexibility about approving higher tax rates for the wealthy, one of the president's demands to keep the country from the so-called fiscal cliff -- a mixture of across-the-board tax increases and spending cuts that many economists say would send the country back into recession.






Carolyn Kaster/AP Photo; Pablo Martinez Monsivais/AP Photo















Fiscal Cliff Battle: President Obama vs. Speaker John Boehner Watch Video





"Let's face it. He does have the upper hand on taxes. You have to pass something to keep it from happening," Sen. Bob Corker of Tennessee said on "FOX News Sunday."


This comes after the White House moderated one of its demands about tax rate increases for the wealthy.


The administration was demanding the rate return to its former level of 39.6 percent on income above $250,000. The so-called Bush tax cut set that rate at 35 percent. But Friday, Vice President Joe Biden signaled that rate could be negotiable, somewhere between the two.


"So will I accept a tax increase as a part of a deal to actually solve our problems? Yes," said Oklahoma Republican Tom Coburn on ABC's "This Week."


The problems the senator was referring to are the country's entitlement programs. And there was some progress on that front, too.


A leading Democrat said means testing for Medicare recipients could be a way to cut costs to the government health insurance program. Those who make more money would be required to pay more for Medicare.


"I do believe there should be means testing, and those of us with higher income and retirement should pay more. That could be part of the solution," Sen. Dick Durbin of Illinois said on NBC's "Meet the Press."


But Durbin said he would not favor raising the eligibility age from 65 years old to 67 years old, as many Republicans have suggested.


The White House and the speaker's office released the exact same statement about the negotiating session. Some will see that as a sign of progress, that neither side is talking about what was said behind closed doors.



Read More..

HPB introduces first centre for promoting healthy lifestyles






SINGAPORE: Singapore's Health Promotion Board on Sunday introduced its first Healthy Lifestyle Centre (HLC) - aimed at making it easier to deliver healthy lifestyle messages to residents at the community level.

Launched at Hong Kah North, the concept will be piloted in all 18 constituencies of the South-West district over the next three years before going islandwide.

South West CDC Mayor and Minister of State for Health, Dr Amy Khor said one of the important pre-requisites for setting up a healthy lifestyle centre is that the constituency concerned must have a Health Promoting Residents' Committee (RC).

"It would be helpful to residents as it would really provide them with convenience in terms of it being a lot more accessible as it is within the RC itself so they can come for consultation and regular follow up," said Dr Khor.

"We would be more than happy to roll out the Healthy Lifestyle Centres to those constituencies which are ready. They should have the Health Promoting RC first so that we can ride on the Health Promoting RC and set up these Healthy Lifestyle Centres."

The centre will educate residents on the benefits of leading a healthy lifestyle and equip them with the knowledge and skills to do so.

It will provide referrals and facilitate follow-up for individuals who may require them.

Dr Khor said the centre will be managed by allied health professionals.

Dr Khor said: "The allied health professionals will be able to provide residents with one-to-one consultation, personal advice, taking into consideration their health conditions and customise intervention programmes in terms of the exercise that they could do, nutrition, diet, as well as how to keep mentally well and active. This would further help to encourage the residents to adopt and continue maintain their healthy lifestyles."

- CNA/xq



Read More..

India misguided, paranoid over China: Guha

Shreya Roy Chowdhury, TNN Dec 8, 2012, 06.12AM IST

MUMBAI: A good half-hour into the discussion on 'India, China and the World', historian Ramachandra Guha issued a disclaimer—all the three members on the panel had been to China only once. "We should learn their language, promote quality research, and have a panel on China driven by Chinese scholars," he said. And that was the general tenor of the debate—that the Indian attitude to China was influenced by a mix of ignorance, cautious optimism about partnerships and a whole lot of misguided paranoia. "Don't demonise the Chinese, please," Guha finally said in response to a question.

"China has existed in our imaginations," observed Sunil Khilnani, professor of politics and author of The Idea Of India. "There's been very little sustained engagement with the reality of China and very little of our own produced knowledge about China." It was after the events of 1962 ('war' in the popular imagination, 'skirmish' to the scholars participating in the discussion), explained Khilnani, that a miffed India "withdrew". It's the 50th anniversary of that exchange this year, and "what we haven't been able to do is learn from the defeat", observed Khilnani. Both could have benefited from greater engagement. "China has had a very clear focus on primary education and achieved high levels of literacy before its economic rise. It has also addressed the issue of land reform," said Khilnani. Guha added that China could learn from the "religious, cultural and linguistic pluralism" in India.

But China and India weren't always so out of sync with each other. Srinath Raghavan, a scholar of military history, got both Guha and Khilnani to talk about pre-1962 relations between the two when the picture was rosier. Tagore was interested in China and so was Gandhi. Both were very large countries with large populations and shared what Guha calls a "lack of cultural inferiority". "They were both," he continued, "also heavily dependent on peasant communities." Nehru was appreciative of China's will to modernize and industrialize and its adoption of technology to achieve those ends. In turn, Chinese politicians argued for Indian independence.

Things soured more, feel both Khilnani and Guha, after the Dalai Lama fled to India in 1959. "He was welcomed here as a spiritual leader but the intensification of the conflict dates to the Dalai Lama's flight," said Guha. Both Guha and Khilnani argued that Nehru's decision to not react aggressively to China's occupation of Tibet was, in the long run, the right one and prevented further "militarization" of the region. An audience member wondered if that didn't make India "China's puppet". Guha disagreed. "If there's a Tibetan culture alive today," he said, "it's not because of Richard Gere. Don't believe in the hypocrisy of the Western countries. Will they give them land, employment, dignified refuge? The Tibetans is one of the few cases in which our record is honorable."

But the difference in levels of development and the lopsided trade relations between the two countries have only fuelled the suspicions many Indians seem to harbour about China. People were worried, said Guha, even about cricket balls made in China. Audience questions reflected those worries. A member asked about China's "strategy to conquer the world" and its likely impact on India. Guha cautioned against stereotypes; Khilnani explained, "History is littered with the debris of states that have tried to dominate the world. What we're doing may be more long-lasting."

Read More..

Plants Grow Fine Without Gravity


When researchers sent plants to the International Space Station in 2010, the flora wasn't meant to be decorative. Instead, the seeds of these small, white flowers—called Arabidopsis thaliana—were the subject of an experiment to study how plant roots developed in a weightless environment.

Gravity is an important influence on root growth, but the scientists found that their space plants didn't need it to flourish. The research team from the University of Florida in Gainesville thinks this ability is related to a plant's inherent ability to orient itself as it grows. Seeds germinated on the International Space Station sprouted roots that behaved like they would on Earth—growing away from the seed to seek nutrients and water in exactly the same pattern observed with gravity. (Related: "Beyond Gravity.")

Since the flowers were orbiting some 220 miles (350 kilometers) above the Earth at the time, the NASA-funded experiment suggests that plants still retain an earthy instinct when they don't have gravity as a guide.

"The role of gravity in plant growth and development in terrestrial environments is well understood," said plant geneticist and study co-author Anna-Lisa Paul, with the University of Florida in Gainesville. "What is less well understood is how plants respond when you remove gravity." (See a video about plant growth.)

The new study revealed that "features of plant growth we thought were a result of gravity acting on plant cells and organs do not actually require gravity," she added.

Paul and her collaborator Robert Ferl, a plant biologist at the University of Florida in Gainesville, monitored their plants from the Kennedy Space Center in Florida using images sent from the space station every six hours.

Root Growth

Grown on a nutrient-rich gel in clear petri plates, the space flowers showed familiar root growth patterns such as "skewing," where roots slant progressively as they branch out.

"When we saw the first pictures come back from orbit and saw that we had most of the skewing phenomenon we were quite surprised," Paul said.

Researchers have always thought that skewing was the result of gravity's effects on how the root tip interacts with the surfaces it encounters as it grows, she added. But Paul and Ferl suspect that in the absence of gravity, other cues take over that enable the plant to direct its roots away from the seed and light-seeking shoot. Those cues could include moisture, nutrients, and light avoidance.

"Bottom line is that although plants 'know' that they are in a novel environment, they ultimately do just fine," Paul said.

The finding further boosts the prospect of cultivating food plants in space and, eventually, on other planets.

"There's really no impediment to growing plants in microgravity, such as on a long-term mission to Mars, or in reduced-gravity environments such as in specialized greenhouses on Mars or the moon," Paul said. (Related: "Alien Trees Would Bloom Black on Worlds With Double Stars.")

The study findings appear in the latest issue of the journal BMC Plant Biology.


Read More..

Gay Marriage: Will Justices Follow Popular Opinion?













The Supreme Court's announcement that it would hear two cases challenging laws prohibiting same-sex marriage has reinvigorated one of the most hotly contentious social debates in American history, a debate that has been fueled by a dramatic change in attitudes.


With some states taking significant steps towards legalizing gay marriage, the hearings come at a critical moment.


This week in Washington State, hundreds of same-sex couples lined up to collect marriage licenses after Gov. Christine Gregoire announced the passing of a voter-approved law legalizing gay marriage.


"For the past 20 years we've been saying just one more step. Just one more fight. Just one more law. But now we can stop saying 'Just one more.' This is it. We are here. We did it," Gregoire told a group of Referendum 74 supporters during the law's certification.


Washington is just the most recent of several states to pass legislation legalizing same-sex marriage, signifying a significant departure from previous thinking on the controversial subject.


READ: Court to Take Up Same-Sex Marriage


A study by the Pew Research Center on changing attitudes on gay marriage showed that in 2001 57 percent of Americans opposed same-sex marriage, while 35 percent of Americans supported it.


The same poll shows that today opinions have greatly shifted to reflect slightly more support for same-sex marriage than opposition -- with 48 percent of Americans in favor and 43 percent opposed.


In fact, just two years ago, 48 percent of Americans opposed same-sex marriage while only 42 percent supported it -- indicating that opinions have changed dramatically in the last couple of years alone.






David Paul Morris/Getty Images











Supreme Court Set to Tackle Same-Sex Marriage Watch Video









Gay Marriage: Supreme Court to Examine Marriage Equality Watch Video









Marijuana, Gay Marriage Win in 2012 Election Results Watch Video





Check Out Same-Sex Marriage Status in the U.S. State By State


It's hard to imagine that only 16 years ago, the fervent gay marriage debate led to the conception of the Defense of Marriage Act, which defines marriage as a union solely held between a man and a woman.


While debating the Defense of Marriage Act in September 1996, former Sen. Robert Byrd said: "If same-sex marriage is accepted, then the announcement will be official: America will have said that children do not need a mother and a father. Two mothers or two fathers will be OK. It'll be just as good. This would be a catastrophe."


Even a few short years ago a newly-elected President Obama did not support the legalization of gay marriage. It wasn't until earlier this year, at the end of hiss first term and with the impending election in sight, that the president told ABC's Robin Roberts the he'd "been going through an evolution on this issue."


Obama went on to attribute his shift in stance to the influence of his daughters.


"You know, Malia and Sasha, they've got friends whose parents are same-sex couples. It wouldn't dawn on them that somehow their friends' parents would be treated differently," he said. "That's the kind of thing that prompts -- a change in perspective."


Obama isn't the only one to experience an evolution in thinking on the matter of gay marriage. Attitudes towards same-sex marriage have shifted dramatically over the past decade across the board, particularly in the past few years.


Gone are the days when a majority of people opposed same-sex marriage; the days when gay politicians and supporters of same-sex marriage could not get elected.


Get more pure politics at ABCNews.com/Politics and a lighter take on the news at OTUSNews.com


Today, nine states and the District of Columbia allow same-sex unions -- a number likely considered inconceivable just a few short years ago. And yet, the same-sex marriage debate still begs for the answering of a question: Will this newfound public opinion, largely driven by young people, women and Democrats, have an effect on the Supreme Court's ultimate decision on the matter?


"I think (gay marriage is) just not a big deal for a lot of young people," Elizabeth Wydra of the Constitutional Accountability Center says. "The justices are human beings so they're not completely immune to public opinion. ... I think the real question for them is going to be do they want to be on the wrong side of history?"



Read More..

Anger over Japan minister's N Korea rocket gaffe






TOKYO: A Japanese minister has come under fire from the opposition for saying North Korea should "waste no time" in holding its planned rocket launch so he can campaign in earnest for the upcoming election.

Pyongyang announced last week that it would launch a rocket -- ostensibly aimed at placing a satellite in orbit -- between December 10 and 22, prompting neighbouring countries to guard against a suspected long-range missile flight.

On a visit to his constituency in Osaka on Friday, Chief Cabinet Secretary Osamu Fujimura said government duties were limiting his time to campaign as a candidate for the ruling Democratic Party of Japan (DPJ), ahead of the general election on December 16.

Asked by reporters when he would come home again to put his campaign in full swing, he replied: "Basically, it depends on when the North Korean missile goes up. It will be great if they waste no time and send it up on Monday."

Opposition parties have taken advantage of his apparent gaffe to step up their attack on the centre-left party, widely criticised for being incompetent during its three years in power.

They demanded Fujimura's resignation, saying his duty was to help stop North Korea from launching a rocket.

"We cannot defend Japan with such a chief cabinet secretary. We aim to regain power," former prime minister Shinzo Abe, head of the main opposition Liberal Democratic Party, said on Saturday in a campaign speech in northern Japan.

While Prime Minister Yoshihiko Noda has been touring the country to boost the DPJ's chances in the uphill election battle, Fujimura has stayed in the capital to perform his role as the premier's right-hand man and chief spokesman.

Fujimura was quick to try and control the damage by saying later on Friday: "I want to apologise if a lack of explanation gave a false impression."

He said he had wanted to emphasise his wish to talk with people in his constituency in person and as much as possible.

Japan has ordered its military to shoot down a North Korean rocket if it threatens the nation's territory, readying surface-to-air missiles in Tokyo and Okinawa, and deploying Aegis warships in neighbouring waters.

- AFP/xq



Read More..

India misguided, paranoid over China: Guha

MUMBAI: A good half-hour into the discussion on 'India, China and the World', historian Ramachandra Guha issued a disclaimer—all the three members on the panel had been to China only once. "We should learn their language, promote quality research, and have a panel on China driven by Chinese scholars," he said. And that was the general tenor of the debate—that the Indian attitude to China was influenced by a mix of ignorance, cautious optimism about partnerships and a whole lot of misguided paranoia. "Don't demonise the Chinese, please," Guha finally said in response to a question.

"China has existed in our imaginations," observed Sunil Khilnani, professor of politics and author of The Idea Of India. "There's been very little sustained engagement with the reality of China and very little of our own produced knowledge about China." It was after the events of 1962 ('war' in the popular imagination, 'skirmish' to the scholars participating in the discussion), explained Khilnani, that a miffed India "withdrew". It's the 50th anniversary of that exchange this year, and "what we haven't been able to do is learn from the defeat", observed Khilnani. Both could have benefited from greater engagement. "China has had a very clear focus on primary education and achieved high levels of literacy before its economic rise. It has also addressed the issue of land reform," said Khilnani. Guha added that China could learn from the "religious, cultural and linguistic pluralism" in India.

But China and India weren't always so out of sync with each other. Srinath Raghavan, a scholar of military history, got both Guha and Khilnani to talk about pre-1962 relations between the two when the picture was rosier. Tagore was interested in China and so was Gandhi. Both were very large countries with large populations and shared what Guha calls a "lack of cultural inferiority". "They were both," he continued, "also heavily dependent on peasant communities." Nehru was appreciative of China's will to modernize and industrialize and its adoption of technology to achieve those ends. In turn, Chinese politicians argued for Indian independence.

Things soured more, feel both Khilnani and Guha, after the Dalai Lama fled to India in 1959. "He was welcomed here as a spiritual leader but the intensification of the conflict dates to the Dalai Lama's flight," said Guha. Both Guha and Khilnani argued that Nehru's decision to not react aggressively to China's occupation of Tibet was, in the long run, the right one and prevented further "militarization" of the region. An audience member wondered if that didn't make India "China's puppet". Guha disagreed. "If there's a Tibetan culture alive today," he said, "it's not because of Richard Gere. Don't believe in the hypocrisy of the Western countries. Will they give them land, employment, dignified refuge? The Tibetans is one of the few cases in which our record is honorable."

But the difference in levels of development and the lopsided trade relations between the two countries have only fuelled the suspicions many Indians seem to harbour about China. People were worried, said Guha, even about cricket balls made in China. Audience questions reflected those worries. A member asked about China's "strategy to conquer the world" and its likely impact on India. Guha cautioned against stereotypes; Khilnani explained, "History is littered with the debris of states that have tried to dominate the world. What we're doing may be more long-lasting."

Read More..

Plants Grow Fine Without Gravity


When researchers sent plants to the International Space Station in 2010, the flora wasn't meant to be decorative. Instead, the seeds of these small, white flowers—called Arabidopsis thaliana—were the subject of an experiment to study how plant roots developed in a weightless environment.

Gravity is an important influence on root growth, but the scientists found that their space plants didn't need it to flourish. The research team from the University of Florida in Gainesville thinks this ability is related to a plant's inherent ability to orient itself as it grows. Seeds germinated on the International Space Station sprouted roots that behaved like they would on Earth—growing away from the seed to seek nutrients and water in exactly the same pattern observed with gravity. (Related: "Beyond Gravity.")

Since the flowers were orbiting some 220 miles (350 kilometers) above the Earth at the time, the NASA-funded experiment suggests that plants still retain an earthy instinct when they don't have gravity as a guide.

"The role of gravity in plant growth and development in terrestrial environments is well understood," said plant geneticist and study co-author Anna-Lisa Paul, with the University of Florida in Gainesville. "What is less well understood is how plants respond when you remove gravity." (See a video about plant growth.)

The new study revealed that "features of plant growth we thought were a result of gravity acting on plant cells and organs do not actually require gravity," she added.

Paul and her collaborator Robert Ferl, a plant biologist at the University of Florida in Gainesville, monitored their plants from the Kennedy Space Center in Florida using images sent from the space station every six hours.

Root Growth

Grown on a nutrient-rich gel in clear petri plates, the space flowers showed familiar root growth patterns such as "skewing," where roots slant progressively as they branch out.

"When we saw the first pictures come back from orbit and saw that we had most of the skewing phenomenon we were quite surprised," Paul said.

Researchers have always thought that skewing was the result of gravity's effects on how the root tip interacts with the surfaces it encounters as it grows, she added. But Paul and Ferl suspect that in the absence of gravity, other cues take over that enable the plant to direct its roots away from the seed and light-seeking shoot. Those cues could include moisture, nutrients, and light avoidance.

"Bottom line is that although plants 'know' that they are in a novel environment, they ultimately do just fine," Paul said.

The finding further boosts the prospect of cultivating food plants in space and, eventually, on other planets.

"There's really no impediment to growing plants in microgravity, such as on a long-term mission to Mars, or in reduced-gravity environments such as in specialized greenhouses on Mars or the moon," Paul said. (Related: "Alien Trees Would Bloom Black on Worlds With Double Stars.")

The study findings appear in the latest issue of the journal BMC Plant Biology.


Read More..

Federal Agencies Brace for Deep Cuts Post-'Cliff'


Dec 7, 2012 4:22pm







gty barack obama john boehner ll 121206 wblog Federal Agencies Brace for Deep Cuts Post Cliff

Toby Jorrin/AFP/Getty Images


With the “fiscal cliff” quickly approaching, federal agencies are stepping up preparations for deep automatic budget cuts that will kick in Jan. 2 unless the White House and Congress can reach a deal.


The Office of Management and Budget told ABC News that a memo went out to federal agencies earlier this week seeking “additional information and analysis” in order to finalize spending cuts required if we go off the cliff.


The agencies are considering which workers to furlough, projects to put on hold and offices that will have to close.


The request follows the administration’s release of a 400-page report in September that outlined the budget areas to be impacted by the $1.2 trillion in automatic spending cuts and what percentages they would be slashed.


READ MORE: White House Details ‘Doomsday’ Budget Cuts


Billions of dollars could be slashed from defense operations and maintenance programs. Medicare would take a two-percent hit, trimming millions in payouts to health care providers. Scientific research programs would be gutted. Aid for the poor and needy would be sharply curtailed.


The report also detailed operations that would be exempt from any cuts, including active-duty military operations, nuclear watchdogs, homeland security officials, veterans care and other critical areas.


READ: Pentagon Begins Planning for ‘Cliff’ Cuts


Asked about the agency preparations underway, White House spokesman Jay Carney said Wednesday that OMB “must take certain steps to ensure the administration is ready to issue such an order should Congress fail to act.”


“Earlier this week, OMB issued a request to federal agencies for additional information to finalize calculations on the spending reductions that would be required,” Carney said.


“This action should not be read … as a change in the administration’s commitment to reach an agreement and avoid sequestration.  OMB is simply ensuring that the administration is prepared, should it become necessary to issue such an order,” he said. “OMB will continue to consult with agencies and will provide additional guidance as needed.  This is just acting responsibly because of the potential for this happening.”


Get more pure politics at ABCNews.com/Politics and a lighter take on the news at OTUSNews.com.


More ‘Fiscal Cliff’ Coverage From Today:




SHOWS: World News







Read More..