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.

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Royal Hoax: DJs 'Shattered' After Nurse's Suicide

The two Australian radio DJs who prank-called the London hospital where Kate Middleton was being treated last week said they were "shattered" and "gutted" after the nurse who answered their call apparently killed herself.

Shock jocks Mel Greig, 30, and Michael Christian, 25, cried as they spoke to Australia's Channel 9 overnight in their first public interview since Jacintha Saldanha, 46, the nurse who last week connected the pair to the duchess' room, was found dead Friday morning.

"I'm shattered, gutted, heartbroken," Christian said. "Mel and myself are incredibly sorry for the situation and what's happened. I had the idea. … It was just a simple harmless phone call. It was going to go on for 30 seconds. We were going to get hung up on."

FULL COVERAGE: Royal Baby

The host of the "2Day" FM radio show pretended to be Queen Elizabeth and Prince Charles, asking for an update on Middleton's condition when they called up King Edward VII Hospital in central London. With no receptionist on duty overnight, Saldanha answered the prank call and put it through.

"It was just something that was fun and light-hearted and a tragic turn of events that I don't think anyone had expected," Christian said.

A Current Affair/ABC News

Jacintha Saldanha Dead: Could DJs Face Charges? Watch Video

Jacintha Saldanha Outrage: DJs Responsible for Prank Are in Hiding Watch Video

Saldanha was found dead Friday morning after police were called to an address near the hospital to "reports of a woman found unconscious," according to a statement from Scotland Yard.

Investigators have not said how she might have killed herself.

Greig cried today when asked about the moment she heard of the death of Saldanha, a mother of two.

"It was the worst phone call I've ever had in my life," she said through tears. "There's not a minute that goes by that we don't think about her family and the thought that we may have played a part in that is gut-wrenching."

The DJs said they never expected to get through to Middleton's nurse and assumed "the same phone calls had been made 100 times that morning," Christian said.

Grieg said, "We wanted to be hung up on with our silly voices and wanted a 20-second segment to air of us doing stupid voice. … Not for a second did we expect to even speak to Kate or even have a conversation with anyone at the hospital. We wanted to be hung up on."

The global backlash against the duo has been fierce, from online death threats to calls for prison time. Their radio station has announced it is banning phony phone calls altogether, and suspending advertising indefinitely.

Max Moore-Wilton, the chairman of Southern Cross Austereo, said in a letter Sunday to Lord Glenarthur, chairman of King Edward VII's Hospital, that the company is reviewing the station's broadcast policies, the AP reported.

"I can assure you we are taking immediate action and reviewing the broadcast and processes involved," Moore-Wilton said in the letter. "As we have said in our own statements on the matter, the outcome was unforeseeable and very regrettable."

Greig and Michael have been taken off the air, silenced indefinitely.

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Frankfurt airport axes 150 flights after snowfall

FRANKFURT: Frankfurt airport cancelled 150 incoming and outgoing flights on Sunday because of snowfall and warned that more cancellations could be expected.

Intercontinental, domestic and European flights were all affected at the airport, Europe's third-busiest, and the conditions would delay other flights, a spokesman said.

A total of 1,250 flights had been scheduled for Sunday at what is Germany's biggest airport.

Berlin was also hit by snowy conditions on Sunday, but a spokesman at the capital's airport said that while there were delays of up to 20 minutes were expected as they cleared landing strips, no flights had been cancelled.

- AFP/xq

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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..

Colorado Springs Doctor Rescued from Taliban

Dec 9, 2012 6:34am

ABC

The American doctor rescued from the Taliban in Afghanistan Saturday by U.S. Special Operations Forces is the medical adviser for a Colorado Springs NGO, his employer confirmed today.

Dr. Dilip Joseph and two colleagues were kidnapped by a group of armed men while returning from a visit to a rural medical clinic in eastern Kabul Province, according to a statement from their employer, Colorado Springs-based Morning Star Development. The statement said the three were eventually taken to a mountainous area about 50 miles from the border with Pakistan.

Morning Star’s crisis management team in Colorado Springs was in contact with the hostages and their captors almost immediately, the statement said.

On Saturday evening in Afghanistan, two of the three hostages were released. Morning Star did not release their names in order to protect their identities. Dr. Joseph remained in captivity.

Gen. John R. Allen, the commander of U.S. forces in Afghanistan, ordered the mission to rescue Joseph when “intelligence showed that Joseph was in imminent danger of injury or death”, according to a military press release.

Morning Star said Joseph was in good condition and will probably return home to Colorado Springs in the next few days.

A Defense Department official told ABC’s Luis Martinez that Joseph can walk, but was beaten up by his captors.

Joseph has worked for Morning Star Development for three years, the organization said, and travels frequently to Afghanistan.

“Morning Star Development does state categorically that we paid no ransom, money or other consideration to the captors or anyone else to secure the release of these hostages,” the organization said.

Joseph can be seen here in a Morning Star Development video:

“Due to security concerns, some cannot be named but their help will never be forgotten. Among these who cannot be named we include all of the courageous members of the U.S. military who successfully rescued Mr. Joseph as they risked their own lives doing so,” the statement said.

SHOWS: World News

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Life & works of local literary icon on exhibit

SINGAPORE: An exhibition that features the life and works of local literary icon Dr Muhammad Ariff Ahmad was launched at the National Library Building on Saturday.

"Sumbangsih MAS: Muhammad Ariff Ahmad" also showcases his writings that are displayed for the first time, including an unpublished manuscript.

The well-respected Malay language and cultural luminary turned 88 two days ago.

This exhibition - which recognises his efforts and contributions towards Singapore's literary scene, comes as a timely birthday gift.

Jointly organised by National Library Board, ASAS 50 and the Malay Language Council, the exhibition is in English and Malay to reach out to a wider community.

In conjunction with the exhibition, NLB published a bibliography on Dr Ariff's works, in the hope that it becomes a source of reference for researchers of Malay literature in Singapore.

The National Library Board also produced a collection of 25 of Dr Ariff's poems that were penned since 1947.

"What can be expected in this exhibition is the life and contributions of Cikgu Muhammad Ariff, mainly in the areas of language, literature and in the education field," said Juffri Supa'at, curator for the exhibition and senior librarian of the National Library.

The exhibition is part of NLB's Literary Pioneer Series in honour of Singapore's literary figures.

The exhibition runs at Level 9 of the National Library Building until 3 February 2013. It is open to public and admission is free.

- CNA/xq

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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..

Australian DJs Behind Prank Call Under Fire

An outpouring of anger is being directed today at the two Australian radio hosts after the death of a nurse who was caught in the DJs' prank call to hospital where Kate Middleton was treated earlier this week.

Lord Glenarthur, the chairman of King Edward VII's Hospital - the U.K. hospital where the Duchess of Cambridge was receiving treatment, condemned the prank in a letter to the Max Moore-Wilton, chairman of Southern Cross Austereo, the Australian radio station's parent company.

Glenarthur said the prank humiliated "two dedicated and caring nurses," and the consequences were "tragic beyond words," The Associated Press reported.

DJs Mel Greig and Michael Christian, radio shock jocks at Sydney's 2Day FM have been taken off the air, but the company they work for did not fire them or condemn them.

"I think that it's a bit early to be drawing conclusions from what is really a deeply tragic matter," Rhys Holleran, CEO of Southern Cross Austereo told a news conference in Sydney. "I mean, our main concern is for the family. I don't think anyone could have reasonably foreseen that this was going to be a result."

Nurse Jacintha Saldanha was found dead Friday morning after police were called to an address near the hospital to "reports of a woman found unconscious," according to a statement from Scotland Yard.

Circumstances of her death are still being investigated, but are not suspicious at this stage, authorities said Friday.

Following news of Saldanha's death, commentary on social media included posts expressing shock, sadness and anger.

Jacintha Saldanha, Nurse at Kate Middleton's Hospital, Found Dead Watch Video

A sampling of some of the twitter posts directed at the DJs included: "you scumbag, hope you get what's coming to you" and "I hope you're happy now."

The hospital said that Saldanha worked at the hospital for more than four years. They called her a "first-class nurse" and "a well-respected and popular member of the staff."

The hospital extended their "deepest sympathies" to family and friends, saying that "everyone is shocked" at this "tragic event."

"I am devastated with the tragic loss of my beloved wife Jacintha in tragic circumstances, she will be laid to rest in Shirva, India," Saldanha's husband posted on Facebook.

The duchess spent three days at the hospital undergoing treatment for hyperemesis gravidarum, severe or debilitating nausea and vomiting. She was released from the hospital on Thursday morning.

"The Duke and Duchess of Cambridge are deeply saddened to learn of the death of Jacintha Saldanha," a spokesman from St. James Palace said in a statement.

On Friday, Greig and Christian had been gloating about their successful call to the hospital, in which they pretended to be Queen Elizabeth and Prince Charles and were able to obtain personal information about the Duchess's serious condition.

"You know what they were the worst accents ever and when we made that phone call we were sure a hundred people at least before us would have tried the same thing," said Grieg on air. She added with a laugh, "we were expecting to be hung up on we didn't even know what to say [when] we got through."

"We got through and now the entire world is talking, of course," said her co-host Christian.

When the royal impersonators called the hospital, Saldanha put through to a second nurse who told the royal impersonators that Kate was "quite stable" and hadn't "had any retching."

The hospital apologized for the mistake.

"The call was transferred through to a ward, and a short conversation was held with one of the nursing staff," the hospital said in a statement. "King Edward VII's Hospital deeply regrets this incident."

"This was a foolish prank call that we all deplore," John Lofthouse, the hospital's chief executive, said in the statement. "We take patient confidentiality extremely seriously, and we are now reviewing our telephone protocols."

The radio station also apologized for the prank call.

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