Coffee drinkers have lower risk of death, study suggests
ScienceDaily (May 19, 2012) Older adults who drank coffee — caffeinated or decaffeinated — had a lower risk of death overall than others who did not drink coffee, according a study by researchers from the National Cancer Institute (NCI), part of the National Institutes of Health, and AARP.
Coffee drinkers were less likely to die from heart disease, respiratory disease, stroke, injuries and accidents, diabetes, and infections, although the association was not seen for cancer. These results from a large study of older adults were observed after adjustment for the effects of other risk factors on mortality, such as smoking and alcohol consumption. Researchers caution, however, that they can’t be sure whether these associations mean that drinking coffee actually makes people live longer. The results of the study were published in the May 17, 2012 edition of the New England Journal of Medicine.
Neal Freedman, Ph.D., Division of Cancer Epidemiology and Genetics, NCI, and his colleagues examined the association between coffee drinking and risk of death in 400,000 U.S. men and women ages 50 to 71 who participated in the NIH-AARP Diet and Health Study. Information about coffee intake was collected once by questionnaire at study entry in 1995-1996. The participants were followed until the date they died or Dec. 31, 2008, whichever came first.
The researchers found that the association between coffee and reduction in risk of death increased with the amount of coffee consumed. Relative to men and women who did not drink coffee, those who consumed three or more cups of coffee per day had approximately a 10 percent lower risk of death. Coffee drinking was not associated with cancer mortality among women, but there was a slight and only marginally statistically significant association of heavier coffee intake with increased risk of cancer death among men.
“Coffee is one of the most widely consumed beverages in America, but the association between coffee consumption and risk of death has been unclear. We found coffee consumption to be associated with lower risk of death overall, and of death from a number of different causes,” said Freedman. “Although we cannot infer a causal relationship between coffee drinking and lower risk of death, we believe these results do provide some reassurance that coffee drinking does not adversely affect health.”
The investigators caution that coffee intake was assessed by self-report at a single time point and therefore might not reflect long-term patterns of intake. Also, information was not available on how the coffee was prepared (espresso, boiled, filtered, etc.); the researchers consider it possible that preparation methods may affect the levels of any protective components in coffee.
“The mechanism by which coffee protects against risk of death — if indeed the finding reflects a causal relationship — is not clear, because coffee contains more than 1,000 compounds that might potentially affect health,” said Freedman. “The most studied compound is caffeine, although our findings were similar in those who reported the majority of their coffee intake to be caffeinated or decaffeinated.”
Other social bookmarking and sharing tools:
Story Source:
The above story is reprinted from materials provided by National Institutes of Health.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.
Journal Reference:
- Neal D. Freedman, Yikyung Park, Christian C. Abnet, Albert R. Hollenbeck, Rashmi Sinha. Association of Coffee Drinking with Total and Cause-Specific Mortality. New England Journal of Medicine, 2012; 366 (20): 1891 DOI: 10.1056/NEJMoa1112010
Note: If no author is given, the source is cited instead.
Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DiNxqYhbrPE/120519071454.htm
Pollution teams with thunderclouds to warm atmosphere
ScienceDaily (May 19, 2012) Pollution is warming the atmosphere through summer thunderstorm clouds, according to a computational study published May 10 in Geophysical Research Letters. How much the warming effect of these clouds offsets the cooling that other clouds provide is not yet clear. To find out, researchers need to incorporate this new-found warming into global climate models.
Pollution strengthens thunderstorm clouds, causing their anvil-shaped tops to spread out high in the atmosphere and capture heat — especially at night, said lead author and climate researcher Jiwen Fan of the Department of Energy’s Pacific Northwest National Laboratory.
“Global climate models don’t see this effect because thunderstorm clouds simulated in those models do not include enough detail,” said Fan. “The large amount of heat trapped by the pollution-enhanced clouds could potentially impact regional circulation and modify weather systems.”
Clouds are one of the most poorly understood components of Earth’s climate system. Called deep convective clouds, thunderstorm clouds reflect a lot of the sun’s energy back into space, trap heat that rises from the surface, and return evaporated water back to the surface as rain, making them an important part of the climate cycle.
To more realistically model clouds on a small scale, such as in this study, researchers use the physics of temperature, water, gases and aerosols — tiny particles in the air such as pollution, salt or dust on which cloud droplets form.
In large-scale models that look at regions or the entire globe, researchers substitute a stand-in called a parameterization to account for deep convective clouds. The size of the grid in global models can be a hundred times bigger than an actual thunderhead, making a substitute necessary.
However, thunderheads are complicated, dynamic clouds. Coming up with an accurate parameterization is important but has been difficult due to their dynamic nature.
Inside a thunderstorm cloud, warm air rises in updrafts, pushing tiny aerosols from pollution or other particles upwards. Higher up, water vapor cools and condenses onto the aerosols to form droplets, building the cloud. At the same time, cold air falls, creating a convective cycle. Generally, the top of the cloud spreads out like an anvil.
Previous work showed that when it’s not too windy, pollution leads to bigger clouds. This occurs because more pollution particles divide up the available water for droplets, leading to a higher number of smaller droplets that are too small to rain. Instead of raining, the small droplets ride the updrafts higher, where they freeze and absorb more water vapor. Collectively, these events lead to bigger, more vigorous convective clouds that live longer.
Now, researchers from PNNL, Hebrew University in Jerusalem and the University of Maryland took to high-performance computing to study the invigoration effect on a regional scale.
To find out which factors contribute the most to the invigoration, Fan and colleagues set up computer simulations for two different types of storm systems: warm summer thunderstorms in southeastern China and cool, windy frontal systems on the Great Plains of Oklahoma. The data used for the study was collected by different DOE Atmospheric Radiation Measurement facilities.
The simulations had a resolution that was high enough to allow the team to see the clouds develop. The researchers then varied conditions such as wind speed and air pollution.
Fan and colleagues found that for the warm summer thunderstorms, pollution led to stronger storms with larger anvils. Compared to the cloud anvils that developed in clean air, the larger anvils both warmed more — by trapping more heat — and cooled more — by reflecting additional sunlight back to space. On average, however, the warming effect dominated.
The springtime frontal clouds did not have a similarly significant warming effect. Also, increasing the wind speed in the summer clouds dampened the invigoration by aerosols and led to less warming.
This is the first time researchers showed that pollution increased warming by enlarging thunderstorm clouds. The warming was surprisingly strong at the top of the atmosphere during the day when the storms occurred. The pollution-enhanced anvils also trapped more heat at night, leading to warmer nights.
“Those numbers for the warming are very big,” said Fan, “but they are calculated only for the exact day when the thunderstorms occur. Over a longer time-scale such as a month or a season, the average amount of warming would be less because those clouds would not appear everyday.”
Next, the researchers will look into these effects on longer time scales. They will also try to incorporate the invigoration effect in global climate models.
The research was supported by the U.S. Department of Energy Office of Science. The data from China were gathered under a bilateral agreement with the China Ministry of Sciences and Technology.
Other social bookmarking and sharing tools:
Story Source:
The above story is reprinted from materials provided by Pacific Northwest National Laboratory, via Newswise.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.
Journal Reference:
- Jiwen Fan, Daniel Rosenfeld, Yanni Ding, L. Ruby Leung, Zhanqing Li. Potential aerosol indirect effects on atmospheric circulation and radiative forcing through deep convection. Geophysical Research Letters, 2012; 39 (9) DOI: 10.1029/2012GL051851
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.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3cjQypcmS2s/120519202816.htm
Oxytocin improves brain function in children with autism
ScienceDaily (May 19, 2012) Preliminary results from an ongoing, large-scale study by Yale School of Medicine researchers shows that oxytocin — a naturally occurring substance produced in the brain and throughout the body — increased brain function in regions that are known to process social information in children and adolescents with autism spectrum disorders (ASD).
A Yale Child Study Center research team that includes postdoctoral fellow Ilanit Gordon and Kevin Pelphrey, the Harris Associate Professor of Child Psychiatry and Psychology, will present the results on May 19 at the International Meeting for Autism Research.
“Our findings provide the first, critical steps toward devising more effective treatments for the core social deficits in autism, which may involve a combination of clinical interventions with an administration of oxytocin,” said Gordon. “Such a treatment approach will fundamentally improve our understanding of autism and its treatment.”
Social-communicative dysfunctions are a core characteristic of autism, a neurodevelopmental disorder that can have an enormous emotional and financial burden on the affected individual, their families, and society.
Gordon said that while a great deal of progress has been made in the field of autism research, there remain few effective treatments and none that directly target the core social dysfunction. Oxytocin has recently received attention for its involvement in regulating social abilities because of its role in many aspects of social behavior and social cognition in humans and other species.
To assess the impact of oxytocin on the brain function, Gordon and her team conducted a first-of-its-kind, double-blind, placebo-controlled study on children and adolescents aged 7 to 18 with ASD. The team members gave the children a single dose of oxytocin in a nasal spray and used functional magnetic resonance brain imaging to observe its effect.
The team found that oxytocin increased activations in brain regions known to process social information. Gordon said these brain activations were linked to tasks involving multiple social information processing routes, such as seeing, hearing, and processing information relevant to understanding other people.
Other authors on the study include Randi H. Bennett, Brent C. vander Wyk, James F. Leckman, and Ruth Feldman.
Other social bookmarking and sharing tools:
Story Source:
The above story is reprinted from materials provided by Yale University. The original article was written by Karen N. Peart.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.
Note: If no author is given, the source is cited instead.
Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BUnZ1oGuNKk/120519213236.htm
REGION: Science fair project helped spur Scripps study on marine trash
A recent study documenting an upsurge in marine debris and sea-dwelling insects grew out of a unique collaboration between Scripps researchers and a high school science fair contestant.
The study, published in the journal Biology Letters last week, found that plastic debris in parts of the Pacific had increased 100-fold in 40 years, fueling an explosion of marine insects.
Its authors were Scripps Institution of Oceanography researchers Miriam Goldstein and Lanna Cheng, and Marci Rosenberg, then a Torrey Pines High School student seeking a science fair project.
“It was wonderful,” said Rosenberg, now a freshman in neuroscience at UCLA. “Miriam was the best mentor I could have asked for.”
The study measured tiny plastic particles that have accumulated in the North Pacific Subtropical Gyre, popularly known as the “Great Pacific Garbage Patch.” Though most of the particles are smaller than a fingernail, they form a miniature archipelago of floating surfaces where a rare marine insect can lay its eggs.
“We were really surprised,” Goldstein said. “Other studies that looked at other areas of the ocean had not found this increase (in plastic), so we did not know it would be this large.”
Marine currents converge in the area, she said, creating a permanent state of glassy calm.
“There’s nothing but water for thousands of miles in each direction,” Goldstein said. “The animals that live there would not have been able to be very abundant.”
But plastic particles trapped in the doldrums have formed new habitat for a marine insect, Halobates sericeus, which inhabits water surfaces and lays its eggs on natural flotsam in the open ocean.
With the influx of plastic debris, researchers found that the “sea skaters” have exploited the garbage to lay more eggs.
“While these animals have an important role, you don’t want to have tons and tons of them, because that’s really unstable,” Goldstein said.
Goldstein served as chief scientist of SEAPLEX, a 2009 voyage of graduate students aboard the Scripps research vessel New Horizon, to examine marine trash a thousand miles west of California.
She returned from the trip to receive a letter from Rosenberg, then a Torrey Pines High School student who hoped to do a project on marine trash for a school science fair.
With an older brother who holds a Ph.D. in physics, Rosenberg said she grew up “on a steady diet of Birch Aquarium classes and San Diego Zoo classes. So I already had an interest in science.”
Goldstein met with Rosenberg, who offered to help analyze samples from the voyage.
Although previous studies based on the SEAPLEX research had looked at plastic ingestion by fish, Goldstein said she wanted to study smaller creatures.
“I really like invertebrates,” she said. “So I was never going to do anything on fish.”
For two years, Rosenberg spent several hours in the lab each Saturday with Goldstein and a handful of other volunteers, painstakingly sorting and cataloging the plastic debris and the animals among it.
In addition to the insect eggs, Rosenberg said, she encountered a microscopic world of other creatures such as salps —- gelatinous filter feeders —- and janthina, small purple sea snails.
“They don’t get as much media coverage as the dolphins, but they’re just as cool,” Rosenberg said.
Goldstein described Rosenberg as a meticulous researcher, and credited her as second author on the Biology Letters article —- a rare accomplishment for an undergraduate, let alone a freshman.
“She did fantastic work,” Goldstein said. “She kept me more organized than I’d naturally be.”
Rosenberg said the time scale for her own science fair project pushed them to analyze results quickly.
“We had to think about the story the data was telling much earlier than we would have,” she said.
Rosenberg presented the findings at her school science fair, at the state science fair, and in a poster at the Western Society of Naturalists Conference in November 2010, Goldstein said.
Although Rosenberg was one of the few participants younger than legal drinking age, she still benefited from the conference bar.
“My poster was next to the line for cocktails,” she said. “So I had a captive audience. I’d say, ‘Would you like to hear about my research?’ And even if they didn’t, they really didn’t have a choice.”
Goldstein said she was proud of her assistant’s work, but disappointed that Rosenberg doesn’t plan to continue in marine biology. Rosenberg said she hopes to pursue a Ph.D. in neuroscience research, but is toying with adding a minor in conservation biology.
Goldstein said she plans to follow up with other studies on marine trash, perhaps looking at whether the debris is allowing transport of invasive species through the open ocean.
“The subtropical gyres are the majority of the world’s oceans,” she said. “They’re important for regulating climate, so you don’t want to mess that up.”
Editor’s note: Miriam Goldstein is married to North County Times Business Reporter Eric Wolff.
Pakistani teens bag prize at international science fair
Three students make it to Intel Isef conference in the US. PHOTO: THE EXPRESS TRIBUNE
PITTSBURGH:
Three Pakistani teenagers managed to snag fourth place at the international science fair in the US on Friday.
The project entitled “Energy Square for Cattle,” created by Mahnoor Hassan, Shiza Gulab and Bushra Shahed of the Institute of Computer and Management Sciences in Peshawar, took fourth prize, and a $500 award, in the Animal Sciences Category at the Grand Awards Ceremony of the Intel International Science and Engineering Fair in Pittsburgh.
The event is the world’s largest pre-college science fair.
Hassan and Gulab, who were present to collect their prize, explained that their project is good for livestock in times of a natural disaster.
“People think of themselves in times of disaster before animals,” said Gulab, while referring to the recent floods in Pakistan. “This square makes it easier to look out for the well-being of livestock also,” she added.
The girls said that just a few licks of their energy square controlled diseases, increased milk production and increased weight in cattle after just 28 days.
The squares are a dry mix of a variety of ingredients, such as mulberry, urea and calcium, which provide vitamins and protein to the animal.
“Because people who have animals are usually poor, we have created an affordable option for them,” said Gulab.
The fair, held between May 13-18, concluded on Friday afternoon in a confetti haze as the top prizewinner was announced. The winner was 15-year-old Jack Andraka from the US state of Maryland, who created a Non-Invasive Pancreatic Cancer Detection Tool.
“This competition encourages millions of students to engage their skills for innovation and develop promising solutions for global challenges,” said Executive Director of the Intel Foundation Wendy Hawkins.
Meet the finalists
If you’re looking for inspiration, look no further than Pakistan’s finalists at the Isef.
“I want to be the greatest scientist in the world,” proclaimed finalist Syed Shahzeb Zarrar. Zarrar, along with two other finalists, arrived in Pittsburgh last week. While five finalists were named in Pakistan, only three managed to obtain a visa.
“Every Pakistani should know about Isef. Everyone has a hidden talent. Because of Isef, I was able to discover mine,” said Zarrar.
It took him approximately eight months to complete his project entitled ‘Production of Artificial Magnetic Domains in Non-Metals’. He explained that electricity could be produced cheaply if non metals were employed and added that his project could easily be used in Pakistan.
“I’ve made friends from India, Japan, and even New Mexico thanks to this conference. It’s amazing,” said Zarrar, who attends Iqra Army Public School and College in Quetta.
Another finalist who missed the event was Musa Rahim Khan of Aga Khan Higher Secondary School in Chitral, whose project was titled, ‘Water and Heat Detector’.
Published in The Express Tribune, May 20th, 2012.
http://tribune.com.pk/story/381538/pakistani-teens-bag-prize-at-international-science-fair/
Forget protests: NATO summit’s problem is Afghanistan
WASHINGTON — When NATO nations meet in Chicago on Sunday, one question will top the agenda: What happens in Afghanistan when US combat troops leave?
To be sure, some troops from NATO countries, led by the United States, will likely stay behind after 2014 – both to train Afghans and act as a hedge against the Taliban‘s return. The summit will try to iron out some of those details.
But perhaps even more crucial – certainly for Afghanistan itself – is the question of who will foot the bill for Afghans to protect themselves. Afghanistan does not have remotely enough money to defend itself. Left alone, it could afford to pay about 30,000 soldiers and police officers. Currently, with international aid, it has more than 300,000 – a number that some experts say is too low.
As a result, much of the Chicago summit will be a passing of the hat for Afghanistan. With NATO countries war-weary and economically strapped, the commitments may not exactly fill that cup to overflowing.
It points to a NATO role in Afghanistan that will continue for years after the end of the international combat mission in 2014, but at a much-reduced and still uncertain level. And it suggests that for all the heady words spoken by NATO leaders, funding and troop pledges for an event still two years away are likely to remain vague.
The two-day meeting “will be something of a tin-cup exercise and should give us some idea of what the [NATO] coalition countries’ post-2014 commitments to Afghanistan will look like,” says Heather Conley, director of the Europe program at the Center for Strategic and International Studies in Washington.
In a clear reflection of this reduced commitment to Afghanistan, the gathering is expected to endorse the scaling back of the Afghan National Security Forces. Army and national police forces once envisioned to hover around 350,000 personnel for years after NATO’s departure are now seen as gradually scaling back to something over 200,000 by 2018.
“The idea is to gradually reduce the size of the Afghan forces to make them more affordable,” says James Dobbins, a former US Afghanistan envoy and now director of the International Security and Defense Policy Center at the RAND Corp. in Arlington, Va.
US share: about $2 billion per year
Pre-summit discussions among NATO countries resulted in a consensus that foresees the US picking up “the largest part of the cost,” Ambassador Dobbins says, with other countries making up the rest. That US share is expected to be about $2 billion a year, with other countries making up the difference of an annual bill of about $4 billion.
Afghan President Hamid Karzai has indicated that he doesn’t think the $4 billion will be enough. During the recent surge, the US was spending about $100 billion a year to maintain its force of 100,000 troops.
Dobbins says he expects the pledges at Chicago to remain general, in part because countries are reluctant to make specific funding commitments for what is still a few years off. Moreover, NATO nations are concerned that promised gains in Afghanistan have not panned out.
“The thinking was that the US surge would kick the stuffing out of the Taliban, they would thus be on the road to defeat, and we’d be handing off a much simpler job,” says Stephen Biddle, senior fellow for defense policy at the Council on Foreign Relations in Washington. “Instead, in 2015 we’ll be handing off a stalemate and a war that in fact is not going to be ending anytime soon.”
The reluctance to pledge long-term commitments to Afghanistan extends to the US as well. Some members of Congress are already warning that there is likely to be a dwindling appetite for picking up a $2 billion annual check for the Afghan security forces after 2014 – even as the White House counters that the price tag is a small fraction of the $88 billion the Pentagon expects to spend in Afghanistan in 2013.
Yet even if NATO countries stick to vague commitments, which will be enough to satisfy the modest goal the US has set for Chicago, regional experts say, the US wants to make a decade-long commitment to troop levels and funding in Afghanistan, and it wants to make sure it is not left on its own.
“What [the US wants] is for NATO to endorse that” general commitment, says David Pollock, a former State Department planning staff official now at the Washington Institute for Near East Policy. But with national budgets tight and with “people convinced that Afghanistan’s long-term success is a long shot,” he says that “at best [the US] will get a statement of long-term goals – without any long-term commitments.”
‘We’ll be handing off a stalemate’
President Obama wanted to signal this long-term commitment by signing the US-Afghan Strategic Partnership Agreement (SPA) in Kabul, Afghanistan, this month.
“That was definitely a setup for the NATO summit, to underline the message that ‘the US has done its part, so now you, too, should stand up,’ ” Dobbins says.
But some analysts doubt that the agreement, which is short on specific US commitments to Afghanistan, will have any impact on the summit.
“The US having failed to sign the SPA by Chicago would have been seriously problematic, but the converse doesn’t hold, largely because it commits people to so little,” Mr. Biddle says.
What could come from Chicago is a concrete decision formally to shift NATO’s mission from combat to training ahead of schedule – in 2013. That transition has already been taking place, Biddle notes, but formalizing it and suggesting that the conditions exist to speed it up could create the perception that NATO is in the mopping-up phase, placating voters and giving NATO members political cover to stay involved a little longer.
“The beauty of changing the mission is that it leaves the political top cover for the allies to stay,” Biddle says.
No aura of ‘mission accomplished’
Such a maneuver could become even more of an imperative after the election to the French presidency of François Hollande, who promised to have French troops out of Afghanistan by around the end of this year.
Whatever is agreed to in Chicago, no one expects the aura of “mission accomplished” that permeated Mr. Obama’s brief mission to Kabul.
Afghanistan: 5 areas of concern after the US leaves
Many of America’s NATO partners want little to do with Afghanistan, but they also want to stay on the good side of the US and to keep the US committed to the alliance. The result is that coalition countries are likely to come through eventually with commitments, but they will be modest and have more to do with maintaining good relations with the US than with Afghanistan.
NATO countries “will calculate that they can scale down, because they can stay on our good side practically without being” in Afghanistan, says the Washington Institute’s Mr. Pollock. Vague talk of long-term commitments aside, he adds, “the drift is to quietly close this chapter in NATO’s history.”
This article, “NATO summit: Who will foot the bill for long-term Afghanistan security?,” first appeared at CSMonitor.com.
© 2012 The Christian Science Monitor
http://www.msnbc.msn.com/id/47491840/ns/world_news-christian_science_monitor/
Contamination at Kinloss probed
18 May 2012
Last updated at 17:46
It is believed that more than 1,000 aircraft were dismantled at Kinloss after the end of WWII
RAF Kinloss in Moray is to be the focus of a new investigation into radioactive contamination, BBC Scotland has learned.
It is linked to the use of “glow in the dark” paint in aircraft from WWII.
The Scottish Environment Protection Agency (Sepa) has already threatened to designate Dalgety Bay in Fife as radioactive contaminated land.
But the site is now just one of nine locations across Scotland which are under scrutiny.
Continue reading the main story
“Start Quote
It does seem that there’s an absence of records about where material was deposited”
End Quote
Dr Paul Dale
Sepa
Environmental reports, known as Land Quality Assessments, prepared for the Ministry of Defence (MoD) show the authorities have been aware of “potential human health and environmental risks” at Kinloss since at least 2004.
The documents also suggest that radiological contamination could extend to land which was sold and is no longer part of the base.
It is believed that more than 1,000 aircraft were dismantled at Kinloss after the end of WWII. Instruments coated with “glow in the dark” paint containing radium were burned and buried at the site.
The Scottish government is to write to Defence Secretary Phillip Hammond calling for the “full disclosure” of records relating to radiological contamination at Kinloss.
Richard Lochhead, Secretary for Rural Affairs and the Environment, said: “It’s very clear that here we have another case where we need absolute transparency from the MoD.
“We have to understand what the situation is at that site, particularly if it is the case that we’re talking about land that has been sold off and is no longer owned by the MoD. People living there, or close by, will want peace of mind.”
Fred Dawson, a former head of policy for radiation protection at the MoD, said it was vital that accurate records were kept of land which may be contaminated to allow future users to ensure radioactive material is not disturbed.
He added: “As long as radium remains buried, it’s of no great concern. The problem is if it’s disturbed. For instance if you’re redeveloping a site, and lots of airfields have been redeveloped, you’re then putting in foundations.
“It’s then that you’re bringing this material to the surface and into contact with people. That’s really what happened at Dalgety Bay.”
Sepa has told BBC Scotland it is to investigate the situation at Kinloss.
Dr Paul Dale, the agency’s radioactive substances specialist, said: “It does seem that there’s an absence of records about where material was deposited.
Radioactive contamination has previously been identified at Dalgety Bay in Fife
“We need to look at that, and we need to look at the assessments that have been done by the MoD and evaluate whether they’re appropriate and evaluate whether anything further is needed.”
The MoD has not commented on the suggestion that land outside the base may be contaminated.
But it said a review of the quality of the land at RAF Kinloss was already under way, ahead of the transfer of the base to the Army.
A spokesman said: “The MoD is committed to assessing land quality across the entire defence estate. This robust, proactive programme mirrors industry best practice, ensures the land is suitable for use and will not cause harm to people or the environment.
“RAF Kinloss is considered suitable for its current use.”
Wild spring weather baffles bugs
18 May 2012
Last updated at 03:09
April’s weather has delayed the emergence of some species, including the brown argus
The wettest April in more than a century has caused problems for UK butterflies, bees and other bugs.
Conservation charities, Butterfly Conservation and Buglife, said the weather was likely to limit some species’ opportunities to forage.
If the unfavourable conditions continue, they could lead to population crashes.
Experts are particularly concerned about honeybees, which will not forage in the cold and could run out of food.
But some of the country’s invertebrate population, such as snails and slugs, are likely to benefit from the deluge.
Continue reading the main story

- In pictures: Wet weather winners and losers
- UK butterflies in decline
According to the Met Office, April 2012 was the wettest on record since 1910; the UK received an average 126.5mm of rain.
Butterfly Conservation’s Richard Fox said that this was “flying season” for some of our rarest butterflies and that it had been “clobbered by awful weather”.
“Spring specialists”, normally seen flying in April, such as the common blue and brown argus, only emerged in early May.
More worryingly, some of our rarer species were “confused” into emerging early by unseasonably warm temperatures in March.
“The worry about this April is that the butterflies that did emerge will have poor breeding success due to the bad weather,” explained Mr Fox.
For example, he said, “the Duke of Burgundy and the pearl-bordered fritillary (both endangered in the UK) produce just one generation a year, and they’re flying now”.
“They can’t change when they emerge. [So] unless conditions improve in the next few weeks their opportunities to breed will be very limited and, we may see population crashes later in the year or next spring.”
‘Winners and losers’
While the recent weather extremes will be bad news for some invertebrates, Buglife pointed out that some would benefit. Some freshwater-dwelling species, such as mayflies, caddisflies and stoneflies, which struggled in the recent drought, could bounce back as their waterways and pond habitats fill up.
And slugs and snails, which have very leaky, permeable skins and need moisture to survive, are likely to feed and breed more in damp conditions.
For bees, it is a more mixed picture.
Dale Harrison from Buglife said that native bumblebees were likely to fare well, as they are “robust and well adapted to our environment and unpredictable weather”.
Continue reading the main story
Swarms and mobs

- Honeybee colonies are very organised societies, with a single queen, a few hundred male drones and thousands of workers. Although British researchers recently discovered a new caste of “soldier bee”.
- As well as starting to forage, spring is the season for honeybees to swarm. This is the colony’s way of reproducing; the queen leaves along with a large group of workers to form a new colony. Like the swarm pictured above, they can end up in some unusual places. The British Beekeepers Association (BBKA) is asking the public to contact them if they find a swarm.
“Whereas, the honeybee is non native, and just is not designed to live with such weather extremes.”
The British Beekeepers Association (BBKA) agreed that they were concerned about honeybees’ ability to withstand the cold, especially in the spring when they have had so little time to build up food stores.
Gill Maclean, a BBKA spokesperson, said: “If they can’t get out, they have to rely on the stores they have in their hive.
“They’ve been cooped up in the hive all winter living on those stores, so that could be a problem.
“We would advise beekeepers to check their bees have sufficient food.”
There is evidence that beetle populations suffer during years when spring and summer are relatively cold and rainy, so conservationists are also concerned to see how threatened species such as the oil beetle will fare.
Mr Fox said that he would be watching the forecast closely. He added: “Time will tell.”
Aborted lift-off for spaceship
19 May 2012
Last updated at 11:58
Please turn on JavaScript. Media requires JavaScript to play.
Saturday’s attempt was aborted just as the rocket was about to lift off
The launch of the American SpaceX company’s re-supply mission to the International Space Station (ISS) has been delayed by at least three days.
The company was forced to abort the flight just as its Falcon rocket was about to leave the pad at Florida’s Cape Canaveral Air Force Station.
Early data indicated unusual pressure readings in one of the nine engine combustion chambers under the vehicle.
The company says it hopes to try again on Tuesday or Wednesday.
“We had a nominal countdown, right until about T-minus point-five-seconds,” explained SpaceX president Gwynne Shotwell.
“The engine controller noted high chamber pressure in engine five; software did what it was supposed to do – aborted engine five, and then we went through the remaining engine shut-down,” she told reporters.
“We need to lift off with all nine [engines], which is why we aborted. You can lose up to two engines and still make your mission, just not at lift-off.”
The next earliest launch opportunity is 03:44 EDT (07:44 GMT; 08:44 BST) on Tuesday.
SpaceX is attempting to become the first private company to send a cargo craft to the ISS; and its Dragon ship, which sits atop the Falcon rocket, has been loaded with half a tonne of food and spares for the purpose.
Such unmanned freighter missions have traditionally been performed by government-owned vehicles. But by buying in this service, Nasa aims to save money that can then be spent on exploration missions far beyond Earth, to asteroids and Mars.
Both SpaceX and another private firm, Orbital Sciences Corp, have been given billion-dollar contracts by Nasa to keep the space station stocked with supplies. Orbital expects to make its first visit to the international outpost with its Antares rocket and Cygnus capsule system later this year.
SpaceX’s mission – when it does eventually get under way – will be the final demonstration of its freight service. If all the mission goals are met to Nasa’s satisfaction, the company’s $1.6bn (£1bn; 1.3bn euros) re-supply contract with the agency will kick in.
SpaceX wants eventually also to ferry astronauts to and from the ISS.
To that end, Dragon has been designed from the outset to carry people; and under another Nasa programme, the company is working to develop the onboard life-support and safety systems that would make manned flights feasible.
Following the retirement of the shuttles last year, America has had no means of launching its own astronauts into space – rides must be bought for them on Russian Soyuz rockets at more than $60m (£38m; 47m euros) per seat. SpaceX says Dragon could be ready to carry people in 2015 at a seat price of $20m (£13m; 16m euros).
“In order for Nasa to be able to afford any programme of exploration in the future given the fiscal realities of the government, it has to transition away from high-cost services that are procured by and for the government into shared-use services that are competitively sourced,” observed Jeff Greason, the president of XCOR Aerospace and a leading proponent of commercial space activity.
Jonathan.Amos-INTERNET@bbc.co.uk and follow me on Twitter
http://www.bbc.co.uk/news/science-environment-18118136#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
Possible engine problem delays U.S. rocket launch
CAPE CANAVERAL, Florida |
CAPE CANAVERAL, Florida (Reuters) – The launch of a privately owned Falcon 9 rocket from Cape Canaveral Air Force Station was delayed on Saturday when a computer detected a possible problem with one of the rocket’s engines, a Space Exploration Technologies official said.
Preparations for the company’s trial cargo run to the International Space Station proceeded smoothly until 4:55 a.m. EDT (0855 GMT) when an onboard computer aborted the launch.
“Liftoff … we’ve had a cutoff. Liftoff did not occur,” said NASA launch commentator George Diller, caught off guard by the sudden, last-minute turn of events.
A computer monitoring the rocket’s nine engines detected a climbing pressure reading in one engine’s chambers and halted the launch 0.5 seconds before liftoff, SpaceX president Gwynne Shotwell told reporters.
“Just like a pilot at the end of a runway revs the engines and looks at the gauges. We were revving the engines, we were looking at the gauges and we decided not to fly,” Shotwell said, adding that the problem was unlikely to be a sensor issue.
The company’s next launch opportunity is at 3:44 a.m. EDT (0744 GMT) on Tuesday.
It is trying to send the unmanned rocket, carrying a Dragon cargo capsule, to the International Space Station, and would be the first private company to do this.
SpaceX is one of two firms hired by NASA to fly cargo to the $100 billion orbital outpost, which is owned by the United States, Russia, Europe, Japan and Canada.
Since the U.S. space shuttles were retired last year, NASA has had no way to reach the station and is dependent on its partner countries to fly cargo and crew. It hopes to change that by buying rides commercially from U.S. companies.
(Reporting by Irene Klotz, 001321 639 1511,; editing by Tim Pearce)

