বৃহস্পতিবার, ২৮ ফেব্রুয়ারী, ২০১৩

Carbohydrate Consumption During Recovery from Exercise | Body ...

women resting

A significant proportion of the recovery from prolonged, moderate- to high-intensity
exercise is the replacement of the body?s stores of carbohydrate. Adequate glycogen
replacement following exercise depends upon the provision of exogenous carbohydrate.
In the event that carbohydrate is not consumed following exercise, the rate of
muscle glycogen synthesis is rather low, and assumes a rate of 7-12 mmol?kg?1dw?h?1,
with much higher rates (20?50 mmol?kg?1dw?h?1) occurring when carbohydrate is
provided in the correct time frame and sufficient amounts.

Carbohydrate intakes are typically expressed as grams of carbohydrate consumed
per kilogram of body weight per hour (g?kg?1?h?1). Provided that sufficient carbohydrate
is consumed, complete restoration of glycogen stores within 24 h has been
shown. Such a time frame is adequate for most individuals who do not regularly
fully tax their glycogen stores, especially when combined with the fact that several
meals will be consumed within this period. However, maximizing glycogen synthesis
takes on greater importance for athletes who significantly deplete their glycogen
stores on consecutive days of training or, as is very common, perform more than one
training session per day.

There appears to be a rapid and a slow phase of glycogen synthesis following
exercise-induced glycogen depletion. An initial rapid period (30?60 min) is characterized
by an insulin-independent translocation of glucose transporters (GLUT-4),
with a more extended period (up to 48 h) characterized by an insulin-dependent phase
of glycogen synthesis at a slower rate.

Resynthesis of glycogen following exercise isthus heavily dependent on the timing and amount of carbohydrate consumed. Withholding provision of carbohydrate results in significantly lower levels of
muscle glycogen synthesis. Glycogen synthesis rates are 45% lower when post-exercise
carbohydrate ingestion is delayed by 2 h. A delay in administration reduces
the amount of glucose that can enter the cell and subsequently be incorporated into glycogen. Thus, immediate (within 30 min of completion of exercise) consumption
of carbohydrate is necessary to ensure adequate glycogen synthesis.

Provision of a sufficient amount of carbohydrate is important in order to maximize
glycogen synthesis rates. The highest rates of glycogen synthesis are observed
when carbohydrate is provided immediately after exercise and at frequent (every
15?30 min) intervals in amounts sufficient to provide 1.2 g?kg?1?h?1.

Providing this same hourly amount less frequently results in slower glycogen synthesis. Supplying
more than 1.2 g?kg?1?h?1does not seem to result in higher glycogen synthesis rates.
Research has also focused on the addition of amino acids or protein to the carbohydrate
in attempts to further stimulate glycogen synthesis, perhaps by further elevating
insulin levels or providing an additional gluconeogenic substrate. Increased
glycogen synthesis rates have been observed when amino acids are added to moderate
amounts of carbohydrate (0.8 g?kg?1?h?1).

Jentjens and colleagues investigated
the addition of amino acids to a drink containing 0.8 or 1.2 g?kg?1?h?1 carbohydrate
and found that the addition of amino acids was beneficial only in the group receiving
the lower amount of carbohydrate. Therefore, the presence of protein or amino acids
in post-exercise supplements does not appear to be necessary as long as sufficient
(1.2 g?kg?1?h?1) amounts of carbohydrate are present, although the addition of protein
or amino acids may possibly assist with muscular growth and repair.

Endurance-trained individuals possess significantly higher rates of glycogen synthesis.
For example, one study determined that trained cyclists demonstrated glycogen
synthesis rates over two times higher than untrained cyclists. Muscle GLUT-4 content
was also three times higher in the trained individuals. Further research has illustrated
that just 10 weeks of training in previously untrained individuals resulted in significantly
greater muscle glycogen synthesis rates and increased levels of GLUT-4.

The magnitude of glycogen depletion plays a very important role in its subsequent
synthesis. Glycogen inhibits its own formation, and it appears that the absolute
amount of glycogen remaining in the muscle (and not the relative percentage that
has been depleted) strongly controls the rate of glycogen synthesis. Thus, it is the
glycogen concentration remaining in the muscle that determines its subsequent rate
of synthesis.

The type of prior exercise can affect the degree of subsequent glycogen synthesis.
Activities that result in significant amounts of exercise-induced muscle injury (such
as downhill running or prolonged exercise) have been shown to reduce glycogen synthesis
rates by up to 25%, even when large amounts of carbohydrate are ingested.76
Consumption of CHO in the post-exercise period is therefore essential to ensure
high rates of glycogen re-synthesis. Consumption of carbohydrate should commence
immediately after exercise, and should be consumed at the rate of 1.2 g?kg?1?h?1 for
4?6 h in order to maintain maximum glycogen synthesis rates.

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Source: http://mybodyhealth.net/carbohydrate-consumption-during-recovery-from-exercise/

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The Tyee ? Can We Live again in 1964's Energy World?

We must engineer a return to that era's lower usage, says expert Vaclav Smil. Second in a series.

'Not a sacrifice' to live then. The Unisphere, symbol of New York 1964-65 World's Fair. Shutterstock.

Text size:

"Everything has to get worse. We are behaving so badly."

Vaclav Smil, you should know, talks very fast in staccato bursts and doesn't own a cell phone.

The University of Manitoba professor, perhaps one of Canada's most precise energy analysts, also doesn't want to be the servant of a communication machine.

"Everyone wants a piece of me," he adds. Authorities from China, Japan, Russia and the United States pester him with speaking invitations and information requests all the time. Even Microsoft billionaire Bill Gates makes demands on him.

And that's because Smil actually knows something about energy in a world that has grown largely energy illiterate, thanks to a now threatened diet of cheap hydrocarbons.

For nearly 40 years now, Smil, a Czech ?migr? and polymath, has studied the world's energy systems. He grew up in the political darkness of the Soviet Empire and has matured in the moral emptiness of its American counterpart.

Although heralded around the world for his insights, he remains largely unknown in Canada. Yet the prolific academic has penned some 30 books and 400 articles on how the world recklessly spends both energy and valuable natural resources.

All of Smil's work is dense, number-filled, literate and chock full of intriguing history. Altogether, his energy writing delivers a sober two-pronged message: North Americans have grown fat and lazy by burning too many fossil fuels. Yet energy transitions are by their very nature protracted, difficult and unpredictable.

Wood to coal

Although oil shocks and boomtowns can unsettle economies in just years, real energy transitions in large global economies often unfold over decades if not generations, Smil observes.

Take one of the world's first major energy transitions from wood to coal as a source of heat, he says. At first aristocrats considered coal a foul and smoky substitute for wood. But a tree famine in northern Europe and England forced along the hydrocarbon's adoption by the 17th century.

It really took the invention and deployment of the steam engine to transform coal into an empire builder. Even so, coal didn't provide the world with nearly 90 per cent of its primary energy until 1930 before being partly replaced by oil.

So transitions take a long time. "The 19th century was a wood century and the 20th was a coal century." Oil didn't reach its peak as central energy source until the 1970s and still accounts for one-third of the world's energy needs. In fact, the global economy remains a full-blown fossil fuel civilization that mines coal, oil and natural gas to satisfy the majority of its energy diet.

Even the transition from horse to car took a long time, adds Smil. In 1885, Gottfried Daimler built one of the world's first combustion engines. "Thirty-three years later the number of horses in the world peaked and then the transition went very fast." But it took 50 years to remove the horse from urban streets and farms.

Energized all the time

Our overwhelming dependence on fossil fuels creates another problem. In 1850, the average European or North American used energy intermittently.

MANY DOWNSIDES TO HIGH ENERGY SPENDING

Vaclav Smil, one of the world's greatest energy analysts and thinkers, has long argued that the key to managing energy supplies is to consume less energy, not more. The pursuit of higher energy spending does not make us richer or wiser, says Smil.

Nor does high energy consumption improve security, happiness, equality or build stronger democracies, adds Smil.

In fact, Smil advocates a return to energy consumption levels prevalent during the 1960s. That means using one-third less energy than currently consumed by the average North American household. "We must break with the current expectation of unrestrained energy use in affluent societies," says Smil.

In Smil's Energy in Nature and Society, the scientist highlighted some uncomfortable truths associated with high energy spending.

High energy spending makes civilizations fragile.

"Expansion of empires may be seen as perfect examples of the striving for maximized power flows, but societies commanding prodigious energy flows, be it late imperial Rome or the early 21st century United States -- are limited by their very reach and complexity. They depend on energy and material imports, are vulnerable to internal malaise, and display social drift and the loss of direction that is incompatible with the resources at their command."

High energy spending fosters insecurity.

"The Soviet Union nearly doubled post Second World War per capita energy use but with a crippling share channeled into armaments. Enormous energy use could not prevent economic prostration, a fundamental reappraisal of the Soviet strategic posture and Mikhail Gorbachev's initiation of long overdue changes."

High energy spending weakens economic prosperity in agriculture.

"Increased energy subsidies may be used with very poor efficiency in irrigation and fertilization, may support unhealthy diets leading to obesity, or may be responsible for severe environmental degradation incompatible with permanent farming (high soil erosion, irrigation-induced salinization, pesticide residues)."

High energy spending encourages materialism but not cultural greatness.

"It is enough to juxtapose the Greek urban civilization of 450 BCE with today's Athens or Florence of the late 15th century with Los Angeles of the early 21st century. In both comparisons, there is a difference of one order of magnitude in per capita use of primary energy and an immeasurably large inverse disparity in terms of respective cultural legacies."

High energy spending does not bring happiness.

"Just the reverse is true: it tends to be accompanied by greater social disintegration, demoralization, and malaise. None of the social dysfunction -- the abuse of children and women, violent crime, widespread alcohol and drug use -- has ebbed in affluent societies, and many of them have only grown worse."

High energy spending diminishes human diversity.

"In natural ecosystems the link between useful energy throughputs and species diversity is clear. But it would be misleading to interpret an overwhelming choice of consumer goods and the expanding availability of services as signs of admirable diversity in modern high energy societies. Rather, with rampant (and often crass) materialism, increasing numbers of functionally illiterate and innumerate people and mass media that promote the lowest common denominator of taste, human intellectual diversity may be at an historically unrivalled low point."

High energy spending does not lead to greater energy savings or efficiencies.

"Efficiency gains in engines or electrical gadgets have not been invested wisely but applied to the overproduction of short-lived disposable junk and into dubious pleasures and thrills promoted by mindless advertising."

High energy spending does not improve quality of life.

"Higher energy flows actually erode quality of life first for populations that are immediately affected by extraction or conversion of energies, eventually for everyone through worrisome global environmental changes."

From: Energy in Nature and Society by Vaclav Smil (MIT Press).

You'd put the fire on in the morning, harness a horse or roll up some sails, says Smil. Energy use was organic and the night skies often fell dark.

Today people use energy 24/7 and at fantastic levels. Every home plugs into an ever-increasing number of glowing gadgets, each promising more comfort and entertainment than the last one. "There are no peaks and valleys. It's not just the quality but the constancy of energy use that has changed," explains Smil every so quickly.

Now don't get Smil wrong. He thinks modern societies consume way too much energy (North Americans consume twice as much as Europeans and yet aren't twice as smart or happy, he adds sarcastically). Moreover, we lavishly waste much of it on the overproduction of cheap and unnecessary junk.

He believes a transition to "non-fossil future is an imperative process of self-preservation" as well as a moral necessity. Harnessing renewable energy flows, is both desirable and inevitable, he adds.

But the old-fashioned engineer and historian doesn't think the transition to cleaner forms of energy will be easy, quick, rational or smooth.

That's a lot of exajoules

One of the first obstacles is just the amount of quantifiable fossil-fueled power that must be replaced. Consider, says Smil, that North Americans gobbled up about six exajoules (EJ) of energy in the form of wood, animal power, coal and some oil in 1884. (The Japanese earthquake and tsunami released about two EJ of energy.)

Today North Americans happily burn our way through 100 EJ of which only 7 EJ come from renewables, such as hydroelectric dams. In other words, the U.S. would have to find 85 EJ from wind, geothermal or wind or "nearly 30 times the total of fossil fuels the country needed in the mid-188s to complete its shift from biomass to coal to hydrocarbons." That's a tall order requiring new infrastructure and massive re-engineering.

The second issue for Smil is capacity. Renewables such as wind and solar just don't have the same ability to make concentrated energy as fossil fuels. Capacity is the constancy of energy that an electrical power plant can actually deliver divided by what it could produce if it operated 24/7. No power plants, of course, work that way.

Nuclear plants, if they are not leaking or down for repairs, can operate 90 per cent of the time. Coal-fired plants can chug along 65 per cent of the time before they need to be cleaned and repaired. But a solar installation can only pump out juice 20 per cent of the time. A wind farm can muster power 25 to 30 per cent of the time or slightly more if perched offshore.

Next comes power density. It's the rate of flow of energy per unit of land area. A coal mine or oil field can deliver great power density. So, too, can a hydroelectric dam. But not renewables. Fossil fuels, despite their declining quality, still offer power densities two to three times greater by orders of magnitude than wind, biofuels or solar.

Smil then offers an uncomfortable calculation. In the early years of the 21st century, the fossil fuel industry (mining, processing and piping) occupied 30,000 square kilometres, or an area about the size of Belgium. The low power densities of renewables, just to replace one-third of the demand for fossil fuels, would require a land base of 12,500,000 km for turbines, solar arrays and transmission lines. That's a territory the size of the U.S. and India.

Renewable challenges

To Smil each renewable or alternative to fossil fuels offers a unique challenge. He thinks that solar, of all renewables, offers the greatest potential. It's the only alternative that currently delivers flows of energy that readily surpass the demand for fossil fuels.

But capturing and transporting those flows at the right commercial scale still proves elusive. "We don't yet have the storage capacity. Solar energy works only when the sun shines."

Nuclear, he says, is "as dead as it can be." It promised cheap energy but delivered the world's least economic source of power as well as persistent waste issues. Only Alberta wants to build nuclear reactors to manufacture more bitumen, a proposal he calls "madness incarnate."

Wind will require millions of turbines and massive land disturbance that may be "environmentally undesirable and technically problematic." It's also an intermittent source of power that requires extensive back-up, usually in the form of coal-fired stations. And in large parts of the world the wind simply does not blow regularly.

Biomass or growing modified trees, sugar-rich crops or algae to fuel inefficient vehicles poses another problem altogether. Civilization has already appropriated 40 per cent of all plant growing activity on Earth for food, fibre and feed. This appropriation has already modified, reduced and compromised ecosystems to "a worrisome degree." Devoting more the world's precious soils to produce something like ethanol, says Smil, is "stupid."

Refashioning a 'supersystem'

The engineer's bottom line is sobering, if not completely politically incorrect. Over the last 100 years the world has spent trillions of dollars building the most extensive energy network ever conceived. Millions of machines now essentially run on 14 trillion watts of coal, oil and natural gas. The quality of these fuels is declining, and keeping the whole show going is getting more and more expensive every day.

Refashioning what Smil calls the world's costliest "supersystem" into something cleaner and sustainable will be a gargantuan task that requires "generations of engineers."

"Yet everyone is broke. So how are we going to build hundreds of billions worth of solar and wind farms?"

To Smil the only moral response remains a "significant reduction in fossil fuel use." The scientist proposes going back to the future -- or the 1960s, to be precise.

"In the 1960s people didn't have three car garages, fly to Las Vegas to gamble or drive SUVs, but they lived comfortably," says Smil. More importantly, they consumed 40 per cent less energy than people today.

"We can return to 1964 with no problem. Living in 1964 is not a sacrifice."

Nor would getting there impose draconian challenges. Switching to 97 per cent energy efficient furnaces (that means they burn 97 per cent of the gas instead older varieties which send 55 per cent up venting stacks), mandating diesel-fueled vehicles and deploying high speed trains would all be part of the solution.

"Bombardier makes rapid trains in this country," declares Smil. "Yet there is not high speed train between Montreal and Toronto. Canada doesn't have a significant high speed link. It's incredible!"

'It will have to collapse'

Smil recognizes that reduced energy use is not yet seen as desirable or politically unacceptable but "replacing entrenched precepts," he adds, is never easy.

In the absence of "radical departures" from that status quo, Smil sees but one all-too human reality:

"Everything is going to have to get worse."

That seems to be the global course at the moment, as oil dependent jurisdictions such as Japan, North America and Europe pretend their "overdrawn accounts, faltering economies and aging populations" don't exist.

Smil, for example, regards China's rise as an industrial and authoritarian superpower as a copycat of the worst excesses of the U.S. energy experience. To Smil, a long-time opponent of the Three Gorges Dam, the Chinese may well outdo Americans in gratuitous materialism.

"China will speed the day of reckoning and India is coming next," he says. He calls the new fossil fuel gobbling economies "riders of the apocalypse." Their energy ascent is physically not possible without an energy descent in the developed world, explains Smil.

"There is no shortage of delusionary people," adds Smil. "I'm a stupid, old fashioned 19th century engineer. Things move slowly."

In fact, no society has really begun any transition other than that of collective global economic stagnation and accelerating investments in fossil fuels.

"Americans are living beyond their means, wasting energy in their houses and cars and amassing energy-intensive throwaway products on credit," he recently wrote in Foreign Policy magazine.

Yet no U.S. politician has yet advocated a reduction in fossil fuel energy use by 40 per cent even though avoiding catastrophic climatic change now demands such behavioural changes.

"We will never act voluntarily. It will have to collapse. That's optimistic," he quips.

You know, he repeats, "Living in 1964 is not a sacrifice."

The conversation ends. Another investigator wants to pump Smil for more straight energy talk.

But perhaps his best advice still remains the concluding sentence of a 2011 article in American Scientist:

"None of us can foresee the eventual contours of new energy arrangements -- but could the world's richest countries go wrong by striving for moderation of their energy use?"

Next Wednesday in Andrew Nikiforuk's 'The Big Shift': What drove our last big shift, from horsepower to steam, and upheavals it caused.  [Tyee]

Award-winning journalist Andrew Nikiforuk has been writing about the energy industry for two decades and is a contributing editor to The Tyee. Find his previous Tyee articles here.

This series was produced by Tyee Solutions Society in collaboration with Tides Canada Initiatives Society (TCI). Funding was provided by Fossil Fuel Development Mitigation Fund of Tides Canada Foundation. All funders sign releases guaranteeing TSS full editorial autonomy. TSS funders and TCI neither influence nor endorse the particular content of TSS' reporting.

Source: http://thetyee.ca/News/2013/02/27/1964-Energy-World/

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iTunes U content downloads pass the one billion mark

iTunes U hits the one billion download mark

Apple completely revamped its iTunes U app last year to include full course materials and it looks like that work is paying dividends, as the site just trumpeted its billionth content download. Over 250,000 students are enrolled in the service, which now boasts "thousands" of iTunes U learning materials, according to Cupertino. The company added that 60 percent of those downloads came from outside the US, with educators in 30 different countries -- like recent additions Brazil and Turkey -- able to create content. OHU prof "Dr. Fux" Stoltzfus said that students using his materials range from students around the world to retirees, so if you've been thinking of a knowledge upgrade, you've got no excuse. For more, check the PR after the break.

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Source: http://www.engadget.com/2013/02/28/itunes-u-content-hits-the-one-billion-download-mark/

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বুধবার, ২৭ ফেব্রুয়ারী, ২০১৩

Ranulph Fiennes pulls out of 'Coldest Journey' expedition

British polar adventurer Ranulph Fiennes, known as the oldest person to summit Mount Everest in 2009, couldn't continue his winter Antarctica crossing expedition, dubbed 'The Coldest Journey,' due to frostbite.

By Danica Kirka,?Associated Press / February 25, 2013

In this 2009 file photo, British explorer Ranulph Fiennes, who became the oldest Briton to scale Mount Everest, is seen relaxing on his return from the mountain in Katmandu, Nepal.

Binod Joshi/AP/File

Enlarge

British explorer?Ranulph?Fiennes on Monday pulled out of an expedition to cross Antarctica during the region's winter after developing frostbite ? a bitter disappointment for an adventurer who had spent years preparing for one of the last great polar challenges.

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The explorer and his five-member team had hoped to traverse nearly 4,000 kilometers (2,500 miles) in a place where temperatures often dip as low as minus 70 Celsius (minus 94 Fahrenheit). The expedition, dubbed "The Coldest Journey," will continue without him.

"The condition is such that he has very reluctantly decided ... to withdraw from Antarctica while the possibility to do so still exists, before the onset of the Antarctic winter," the expedition said in a statement.

Fiennes, who has been going where others fear to tread for decades and in 2009 became the oldest person to summit Mount Everest, already is missing parts of his fingers on his left hand because of frostbite suffered on a North Pole expedition a decade ago.

"This will be my greatest challenge to date," he had said on his website before the journey began. "We will stretch the limits of human endurance."

The polar trek is especially dangerous because no aircraft can travel inland in the winter due to the darkness and risk that fuel will freeze. That means that there would be virtually no chance of a search and rescue operation if disaster strikes.

The team is working toward evacuating Fiennes from Antarctica, but that evacuation is being hampered by a blizzard. The team said he was transported by snowmobile to the Princess Elisabeth Station, about 70 kilometers (45 miles) from his current position. From there, he will be flown to Novo to get a connecting flight to Cape Town in South Africa.

But he will be unable to leave until there is a let-up in weather conditions. The remaining members of the team plan to start the crossing as scheduled March 21.

"This decision has not been taken lightly and it is, naturally, a huge disappointment to Fiennes and his colleagues," the statement said.

The expedition is trying to raise $10 million for the charity "Seeing is Believing," which seeks to prevent blindness.

Polar adventurer and balloonist David Hempleman-Adams, who walked unsupported to the South Pole in 1996, said he believed the winter crossing would be unprecedented.

"The crossing's definitely been done before," he said. "However that was very different. That was in summer months. And that was hugely supported with aircraft and things like this. As far as I know this will be the first winter crossing."

The team has been outfitted with high-tech equipment that prompted comparisons to the preparations for a flight into space, including special breathing apparatus. The expedition will use 20-ton tractors to transport sledges with mounted living quarters and fuel that is designed not to freeze in the extreme temperatures.

Source: http://rss.csmonitor.com/~r/feeds/science/~3/dTYJJNhfMi0/Ranulph-Fiennes-pulls-out-of-Coldest-Journey-expedition

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LGBT survivors of intimate violence have fewer ... - HealthyCal.org

By Heather Tirado Gilligan
California Health Report

People in same-sex relationships face intimate violence as often as straight people do ? but the victim services available now are not enough to keep gay, lesbian and transgender people safe from their abusers, advocates say.

The National Intimate Partner and Sexual Violence survey included information about lesbian, gay, bi-sexual and transgender (LGBT) people for the first time this year. Analysis of the survey by the Centers for Disease Control and Prevention yielded some surprising statistics about intimate partner violence in same-sex relationships.

Both lesbians and bisexual women experience intimate violence more frequently than heterosexual women. Forty-three percent of lesbians and sixty one percent of bisexual women reported abuse by an intimate partner at some time in their lives, compared to thirty-five percent of heterosexual women.

Gay men experience intimate partner violence slightly less frequently than straight men ? 26 percent of gay men reported that they were abused by an intimate partner, compared to 29 percent of straight men. Slightly more than 37 percent of bisexual men also reported abused by an intimate partner.

The data supports what has been apparent for some time, advocates say ? the need for more services specifically for LGBT people.

Terra Slavin works for one of the few programs in the U.S. to offer services specifically to gay and lesbian survivors of domestic violence as the lead domestic violence attorney for the Los Angeles Gay and Lesbian Center. ?We?ve really seen a sea change,? Slavin said of attitudes towards LGBT survivors of violence. ?But we still have a long way to go.?

Slavin supports changes to the Violence Against Women Act, the landmark federal legislation to protect victims and prevent domestic and sexual violence that first passed in 1994. VAWA established the first national domestic violence hotline, the national shield law for rape victims, required states to enforce restraining orders issued in other states, established grants that funded shelters and services to victims of sexual assault and established funding for trainings to help police departments and other systems that have contact with victims to better respond to sexual and domestic violence.

The new version of VAWA, which passed in the Senate in February, adds protections for people in same-sex relationships and transgender people. The revisions would include LGBT people as an underserved group, prohibit service providers from discriminating based on gender identity or sexual orientation and provide grant money to be used for services for victims in same-sex relationships and transgender victims.

A bill with similar provisions also passed in the Senate last year, but then died when the House failed to pass it without Republican support. Republicans proposed another version of VAWA without protections for people in same-sex relationships and also stripped of proposed revisions intended to better protect undocumented immigrants and Native Americans. When that version died in the House, the Act, which usually enjoys bi-partisan support, failed to be renewed for the first time since it passed in 1994.

?Advocates of this provision haven?t produced data that shelters have refused to provide services for these reasons,? Senator Chuck Grassley, one of the co-sponsors of the Republican version of VAWA, said of the proposed protections for LGBT people in a statement. ?The provision is a solution in search of a problem. Instead, it is only a political statement that shouldn?t be made on a bill that is designed to address actual needs of victims.?

The new provisions are essential to protect gays and lesbians, who face different challenges and have far fewer resources than women in heterosexual relationships, said Slavin, who also serves on the National Task Force to End Sexual and Domestic Violence. ?We really do have gaps in service.?

Among them are the most basic needs for shelter. There are only a handful of domestic violence shelters in the country, for instance, that accept men, Slavin said.

?That is a huge problem when we talk about gay men who are in need of emergency housing,? said Susan Holt, who manages the STOP Partner Abuse/Domestic Violence Program at the Los Angeles Gay and Lesbian Center, which provides counseling and prevention services for LGBT survivors of domestic violence.

Transgender victims face particular challenges too. Slavin recalls one client, a transgender woman, who was asked to leave a shelter when staff realized she was transgender. ?It?s hard enough to leave,? Slavin said of the woman?s decision to walk away from her abusive relationship. ?This person fled. She got to a shelter, and she got kicked out.?

And though shelters accept women as a rule, they are not necessarily hospitable to the needs of women in same-sex relationships, assuming that the victims who come through their doors are all heterosexual, Holt said. That assumption can pose real danger for women in abusive same-sex relationships, she added.

?It is very possible for the batterer to follow the victim to the shelter by presenting herself as a victim,? Holt said, adding that such scenarios are not uncommon in her experience. ?There is no real screening process to prevent this,? she said, because the assessments issued to people coming to shelters assume that all women who arrive at shelters are victims rather than abusers.

Police officers responding to calls or victims who want to file reports also have trouble distinguishing the victim from the abuser in same-sex relationships. Rates of duel arrests, where both the victim and the abuser are arrested, are 30 times higher for same sex-couples than in cases with female victims and male offenders, according to the National Institute of Justice.

?I have had advocates tell me that if the cops show up and see two women, they just walk away,? Slavin said.

The way that VAWA is written makes it difficult to find funding for services for gay, lesbian and transgender victims of domestic violence, Slavin said. Thought much of VAWA is written in gender-neutral language, the section of the act authorizing Services Training Officers Prosecutors (STOP) grants specify that they end violence against women. They are therefore not easily accessible to LGBT-specific programs.

?It has allowed states not to fund LGBT programs because they theoretically would not serve mostly women? if they also accepted gay men, Slavin said. Some states, she added, have no services specifically for LGBT people.

STOP grants account for a significant portion of money given to states under the Violence Against Women Act. They have been used to train (.pdf) police and prosecutors to more effectively respond to cases of domestic violence and used to fund shelters.

The House is expected to vote on the Violence Against Women Act again this spring.

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Source: http://www.healthycal.org/archives/11144

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ScienceDaily: Top Science News

ScienceDaily: Top Science Newshttp://www.sciencedaily.com/news/top_news/top_science/ Top science news, featured on ScienceDaily's home page.en-usWed, 27 Feb 2013 10:52:33 ESTWed, 27 Feb 2013 10:52:33 EST60ScienceDaily: Top Science Newshttp://www.sciencedaily.com/images/logosmall.gifhttp://www.sciencedaily.com/news/top_news/top_science/ For more science articles, visit ScienceDaily.Camera inside spiraling football provides ball's-eye view of fieldhttp://www.sciencedaily.com/releases/2013/02/130227102052.htm Researchers have shown that a camera embedded in the side of a rubber-sheathed plastic foam football can record video while the ball is in flight that could give spectators a unique, ball's-eye view of the playing field. They developed a computer algorithm that converts the unwatchable, raw video into a stable, wide-angle view.Wed, 27 Feb 2013 10:20:20 ESThttp://www.sciencedaily.com/releases/2013/02/130227102052.htmDiscovery on animal memory opens doors to research on memory impairment diseaseshttp://www.sciencedaily.com/releases/2013/02/130227085944.htm A new study offers the first evidence of source memory in a nonhuman animal. The findings have fascinating implications, both in evolutionary terms and for future research into the biological underpinnings of memory, as well as the treatment of diseases marked by memory failure such as Alzheimer's, Parkinson's and Huntington's, or disorders such as schizophrenia, PTSD and depression.Wed, 27 Feb 2013 08:59:59 ESThttp://www.sciencedaily.com/releases/2013/02/130227085944.htmNew fabrication technique could provide breakthrough for solar energy systemshttp://www.sciencedaily.com/releases/2013/02/130227085942.htm Scientists are using a novel fabrication process to create ultra-efficient solar energy rectennas capable of harvesting more than 70 percent of the sun's electromagnetic radiation and simultaneously converting it into usable electric power.Wed, 27 Feb 2013 08:59:59 ESThttp://www.sciencedaily.com/releases/2013/02/130227085942.htmNew Greek observatory sheds light on old starhttp://www.sciencedaily.com/releases/2013/02/130227085842.htm Continuing a tradition stretching back more than 25 centuries, astronomers have used the new 2.3-m ?Aristarchos? telescope, sited at Helmos Observatory (2340m high) in the Pelοponnese Mountains in Greece, to determine the distance to and history of an enigmatic stellar system, discovering it to likely be a binary star cocooned within an exotic nebula.Wed, 27 Feb 2013 08:58:58 ESThttp://www.sciencedaily.com/releases/2013/02/130227085842.htmToo much vitamin D during pregnancy can cause food allergieshttp://www.sciencedaily.com/releases/2013/02/130227085838.htm Pregnant women should avoid taking vitamin D supplements, new research suggests. Substitution appears to raise the risk of children developing a food allergy after birth.Wed, 27 Feb 2013 08:58:58 ESThttp://www.sciencedaily.com/releases/2013/02/130227085838.htmIncreased risk of sleep disorder narcolepsy in children who received swine flu vaccinehttp://www.sciencedaily.com/releases/2013/02/130226194006.htm A study finds an increased risk of narcolepsy in children and adolescents who received the A/H1N1 2009 influenza vaccine (Pandemrix) during the pandemic in England.Tue, 26 Feb 2013 19:40:40 ESThttp://www.sciencedaily.com/releases/2013/02/130226194006.htmLeatherback sea turtle could be extinct within 20 years at last stronghold in the Pacific Oceanhttp://www.sciencedaily.com/releases/2013/02/130226141233.htm An international team led by the University of Alabama at Birmingham (UAB) has documented a 78 percent decline in the number of nests of the critically endangered leatherback sea turtle (Dermochelys coriacea) at the turtle's last stronghold in the Pacific Ocean.Tue, 26 Feb 2013 14:12:12 ESThttp://www.sciencedaily.com/releases/2013/02/130226141233.htmResearchers test holographic technique for restoring visionhttp://www.sciencedaily.com/releases/2013/02/130226134259.htm Researchers are testing the power of holography to artificially stimulate cells in the eye, with hopes of developing a new strategy for bionic vision restoration. Computer-generated holography, they say, could be used in conjunction with a technique called optogenetics, which uses gene therapy to deliver light-sensitive proteins to damaged retinal nerve cells. In conditions such as retinitis pigmentosa (RP), these light-sensing cells degenerate and lead to blindness.Tue, 26 Feb 2013 13:42:42 ESThttp://www.sciencedaily.com/releases/2013/02/130226134259.htmEating well could help spread disease, water flea study suggestshttp://www.sciencedaily.com/releases/2013/02/130226120551.htm Plentiful food can accelerate the spread of infections, scientists have shown in a study of water fleas. Scientists studying bacterial infections in tiny water fleas have discovered that increasing their supply of food can speed up the spread of infection.Tue, 26 Feb 2013 12:05:05 ESThttp://www.sciencedaily.com/releases/2013/02/130226120551.htmNon-brittle glass possible: In probing mysteries of glass, researchers find a key to toughnesshttp://www.sciencedaily.com/releases/2013/02/130226114023.htm Glass doesn't have to be brittle. Scientists propose a way of predicting whether a given glass will be brittle or ductile -- a property typically associated with metals like steel or aluminum -- and assert that any glass could have either quality.Tue, 26 Feb 2013 11:40:40 ESThttp://www.sciencedaily.com/releases/2013/02/130226114023.htmConnecting the (quantum) dots: First viable high-speed quantum computer moves closerhttp://www.sciencedaily.com/releases/2013/02/130226114021.htm Scientists have developed a new method that better preserves the units necessary to power lightning-fast electronics, known as qubits. Hole spins, rather than electron spins, can keep quantum bits in the same physical state up to 10 times longer than before, the report finds.Tue, 26 Feb 2013 11:40:40 ESThttp://www.sciencedaily.com/releases/2013/02/130226114021.htmCell discovery could hold key to causes of inherited diseaseshttp://www.sciencedaily.com/releases/2013/02/130226113830.htm Fresh insights into the protective seal that surrounds the DNA of our cells could help develop treatments for inherited muscle, brain, bone and skin disorders. Researchers have discovered that the proteins within this coating -- known as the nuclear envelope -- vary greatly between cells in different organs of the body.Tue, 26 Feb 2013 11:38:38 ESThttp://www.sciencedaily.com/releases/2013/02/130226113830.htmClever battery completes stretchable electronics package: Can stretch, twist and bend -- and return to normal shapehttp://www.sciencedaily.com/releases/2013/02/130226113828.htm Researchers have demonstrated a stretchable lithium-ion battery -- a flexible device capable of powering their innovative stretchable electronics. The battery can stretch up to 300 percent of its original size and still function -- even when stretched, folded, twisted and mounted on a human elbow. The battery enables true integration of electronics and power into a small, stretchable package that is wirelessly rechargeable.Tue, 26 Feb 2013 11:38:38 ESThttp://www.sciencedaily.com/releases/2013/02/130226113828.htmInfrared digital holography allows firefighters to see through flames, image moving peoplehttp://www.sciencedaily.com/releases/2013/02/130226101454.htm Firefighters now have a new tool that could help save lives. A team of researchers have developed a new technique using digital holography that can "see" people through intense flames -- the first time a holographic recording of a live person has been achieved while the body is moving. The new technique allows imaging through both.Tue, 26 Feb 2013 10:14:14 ESThttp://www.sciencedaily.com/releases/2013/02/130226101454.htmBlueprint for an artificial brain: Scientists experiment with memristors that imitate natural nerveshttp://www.sciencedaily.com/releases/2013/02/130226101400.htm Scientists have long been dreaming about building a computer that would work like a brain. This is because a brain is far more energy-saving than a computer, it can learn by itself, and it doesn't need any programming. Scientists are experimenting with memristors -- electronic microcomponents that imitate natural nerves.Tue, 26 Feb 2013 10:14:14 ESThttp://www.sciencedaily.com/releases/2013/02/130226101400.htmUnlimited source of human kidney cells createdhttp://www.sciencedaily.com/releases/2013/02/130226092142.htm Researchers have successfully generated human kidney cells from human embryonic stem cells in vitro1. Specifically, they produced the renal cells under artificial conditions in the lab without using animals or organs. This has not been possible until now.Tue, 26 Feb 2013 09:21:21 ESThttp://www.sciencedaily.com/releases/2013/02/130226092142.htmNewly observed properties of vacuums: Light particles illuminate the vacuumhttp://www.sciencedaily.com/releases/2013/02/130226092128.htm Researchers have succeeded in showing experimentally that vacuums have properties not previously observed. According to the laws of quantum mechanics, it is a state with abundant potentials. Vacuums contain momentarily appearing and disappearing virtual pairs, which can be converted into detectable light particles.Tue, 26 Feb 2013 09:21:21 ESThttp://www.sciencedaily.com/releases/2013/02/130226092128.htmSleep reinforces learning: Children?s brains transform subconsciously learned material into active knowledgehttp://www.sciencedaily.com/releases/2013/02/130226081155.htm During sleep, our brains store what we have learned during the day a process even more effective in children than in adults, new research shows.Tue, 26 Feb 2013 08:11:11 ESThttp://www.sciencedaily.com/releases/2013/02/130226081155.htmMediterranean diet helps cut risk of heart attack, stroke: Results of PREDIMED study presentedhttp://www.sciencedaily.com/releases/2013/02/130225181536.htm Results of a major study aimed at assessing the efficacy of the Mediterranean diet in the primary prevention of cardiovascular diseases show that such a diet supplemented with extra-virgin olive oil or tree nuts reduces by 30 percent the risk of suffering a cardiovascular death, a myocardial infarction or a stroke.Mon, 25 Feb 2013 18:15:15 ESThttp://www.sciencedaily.com/releases/2013/02/130225181536.htmHigher levels of several toxic metals found in children with autismhttp://www.sciencedaily.com/releases/2013/02/130225162231.htm Researchers have found significantly higher levels of toxic metals in children with autism, compared to typical children. They hypothesize that reducing early exposure to toxic metals may help lessen symptoms of autism, though they say this hypotheses needs further examination.Mon, 25 Feb 2013 16:22:22 ESThttp://www.sciencedaily.com/releases/2013/02/130225162231.htmLiver stem cells grown in culture, transplanted with demonstrated therapeutic benefithttp://www.sciencedaily.com/releases/2013/02/130225153130.htm For decades scientists around the world have attempted to regenerate primary liver cells known as hepatocytes because of their numerous biomedical applications, including hepatitis research, drug metabolism and toxicity studies, as well as transplantation for cirrhosis and other chronic liver conditions. But no lab in the world has been successful in identifying and growing liver stem cells in culture -- using any available technique -- until now.Mon, 25 Feb 2013 15:31:31 ESThttp://www.sciencedaily.com/releases/2013/02/130225153130.htmWeather extremes provoked by trapping of giant waves in the atmospherehttp://www.sciencedaily.com/releases/2013/02/130225153128.htm The world has suffered from severe regional weather extremes in recent years, such as the heat wave in the United States in 2011. Behind these devastating individual events there is a common physical cause, propose scientists in a new study. It suggests that human-made climate change repeatedly disturbs the patterns of atmospheric flow around the globe's Northern hemisphere through a subtle resonance mechanism.Mon, 25 Feb 2013 15:31:31 ESThttp://www.sciencedaily.com/releases/2013/02/130225153128.htmClues to climate cycles dug from South Pole snow pithttp://www.sciencedaily.com/releases/2013/02/130225153126.htm Particles from the upper atmosphere trapped in a deep pile of Antarctic snow hold clear chemical traces of global meteorological events, climate scientists from France have found. Anomalies in oxygen found in sulfate particles coincide with several episodes of the world-wide disruption of weather known as El Nino and can be distinguished from similar signals left by the eruption of huge volcanoes, the team reports.Mon, 25 Feb 2013 15:31:31 ESThttp://www.sciencedaily.com/releases/2013/02/130225153126.htmMaize in diets of people in coastal Peru dates to 5,000 years agohttp://www.sciencedaily.com/releases/2013/02/130225153124.htm Scientists have concluded that during the Late Archaic, maize (corn) was a primary component in the diet of people living in the Norte Chico region of Peru, an area of remarkable cultural florescence in 3rd millennium B.C. Up until now, the prevailing theory was that marine resources, not agriculture and corn, provided the economic engine behind the development of civilization in the Andean region of Peru.Mon, 25 Feb 2013 15:31:31 ESThttp://www.sciencedaily.com/releases/2013/02/130225153124.htmBPA may affect the developing brain by disrupting gene regulationhttp://www.sciencedaily.com/releases/2013/02/130225153122.htm Environmental exposure to bisphenol A (BPA), a widespread chemical found in plastics and resins, may suppress a gene vital to nerve cell function and to the development of the central nervous system, according to a new study.Mon, 25 Feb 2013 15:31:31 ESThttp://www.sciencedaily.com/releases/2013/02/130225153122.htmFuture evidence for extraterrestrial life might come from dying starshttp://www.sciencedaily.com/releases/2013/02/130225131618.htm Even dying stars could host planets with life -- and if such life exists, we might be able to detect it within the next decade. This encouraging result comes from a new theoretical study of Earth-like planets orbiting white dwarf stars. Researchers found that we could detect oxygen in the atmosphere of a white dwarf's planet much more easily than for an Earth-like planet orbiting a Sun-like star.Mon, 25 Feb 2013 13:16:16 ESThttp://www.sciencedaily.com/releases/2013/02/130225131618.htmMoments of spirituality can induce liberal attitudes, researchers findhttp://www.sciencedaily.com/releases/2013/02/130225131532.htm People become more politically liberal immediately after practising a spiritual exercise such as meditation, researchers have found.Mon, 25 Feb 2013 13:15:15 ESThttp://www.sciencedaily.com/releases/2013/02/130225131532.htmNew maps depict potential worldwide coral bleaching by 2056http://www.sciencedaily.com/releases/2013/02/130225122045.htm New maps by scientists show how rising sea temperatures are likely to affect all coral reefs in the form of annual coral bleaching events under different emission scenarios. If carbon emissions stay on the current path most of the world's coral reefs (74 percent) are projected to experience coral bleaching conditions annually by 2045, results of the study show.Mon, 25 Feb 2013 12:20:20 ESThttp://www.sciencedaily.com/releases/2013/02/130225122045.htmUltrasound reveals autism risk at birth, study findshttp://www.sciencedaily.com/releases/2013/02/130225112510.htm Low-birth-weight babies with a particular brain abnormality are at greater risk for autism, according to a new study that could provide doctors a signpost for early detection of the still poorly understood disorder.Mon, 25 Feb 2013 11:25:25 ESThttp://www.sciencedaily.com/releases/2013/02/130225112510.htmMarch of the pathogens: Parasite metabolism can foretell disease ranges under climate changehttp://www.sciencedaily.com/releases/2013/02/130225112508.htm Researchers developed a model that can help determine the future range of nearly any disease-causing parasite under climate change, even if little is known about the organism. Their method calculates how the projected temperature change for an area would alter the creature's metabolism and life cycle.Mon, 25 Feb 2013 11:25:25 ESThttp://www.sciencedaily.com/releases/2013/02/130225112508.htmMouse mothers induce parenting behaviors in fathers with ultra-sonic noiseshttp://www.sciencedaily.com/releases/2013/02/130225102141.htm Researchers have demonstrated the existence of communicative signalling from female mice that induces male parental behavior.Mon, 25 Feb 2013 10:21:21 ESThttp://www.sciencedaily.com/releases/2013/02/130225102141.htm'NanoVelcro' device to grab single cancer cells from blood: Improvement enables 'liquid biopsies' for metastatic melanomahttp://www.sciencedaily.com/releases/2013/02/130225092252.htm Researchers have refined a method they previously developed for capturing and analyzing cancer cells that break away from patients' tumors and circulate in the blood. With the improvements to their device, which uses a Velcro-like nanoscale technology, they can now detect and isolate single cancer cells from patient blood samples for analysis.Mon, 25 Feb 2013 09:22:22 ESThttp://www.sciencedaily.com/releases/2013/02/130225092252.htmScientists develop a whole new way of harvesting energy from the sunhttp://www.sciencedaily.com/releases/2013/02/130224142917.htm A new method of harvesting the sun's energy is emerging. Though still in its infancy, the research promises to convert sunlight into energy using a process based on metals that are more robust than many of the semiconductors used in conventional methods.Sun, 24 Feb 2013 14:29:29 ESThttp://www.sciencedaily.com/releases/2013/02/130224142917.htmQuantum algorithm breakthrough: Performs a true calculation for the first timehttp://www.sciencedaily.com/releases/2013/02/130224142829.htm Scientists have demonstrated a quantum algorithm that performs a true calculation for the first time. Quantum algorithms could one day enable the design of new materials, pharmaceuticals or clean energy devices.Sun, 24 Feb 2013 14:28:28 ESThttp://www.sciencedaily.com/releases/2013/02/130224142829.htmFragments of continents hidden under lava in Indian Ocean: New micro-continent detected under Reunion and Mauritiushttp://www.sciencedaily.com/releases/2013/02/130224142725.htm The islands Reunion and Mauritius, both well-known tourist destinations, are hiding a micro-continent, which has now been discovered. The continent fragment known as Mauritia detached about 60 million years ago while Madagascar and India drifted apart, and had been hidden under huge masses of lava.Sun, 24 Feb 2013 14:27:27 ESThttp://www.sciencedaily.com/releases/2013/02/130224142725.htmThe ultimate chimp challenge: Chimps do challenging puzzles for the fun of ithttp://www.sciencedaily.com/releases/2013/02/130224124635.htm Scientists are putting their bananas away, because chimpanzees don't need any persuading when it comes to getting stuck into brain games.Sun, 24 Feb 2013 12:46:46 ESThttp://www.sciencedaily.com/releases/2013/02/130224124635.htmReprogramming cells to fight diabeteshttp://www.sciencedaily.com/releases/2013/02/130223111356.htm For years researchers have been searching for a way to treat diabetics by reactivating their insulin-producing beta cells, with limited success. The "reprogramming" of related alpha cells into beta cells may one day offer a novel and complementary approach for treating type 2 diabetes. Treating human and mouse cells with compounds that modify cell nuclear material called chromatin induced the expression of beta cell genes in alpha cells, according to a new study.Sat, 23 Feb 2013 11:13:13 ESThttp://www.sciencedaily.com/releases/2013/02/130223111356.htmLessons from cockroaches could inform roboticshttp://www.sciencedaily.com/releases/2013/02/130222143233.htm Running cockroaches start to recover from being shoved sideways before their dawdling nervous system kicks in to tell their legs what to do, researchers have found. These new insights on how biological systems stabilize could one day help engineers design steadier robots and improve doctors' understanding of human gait abnormalities.Fri, 22 Feb 2013 14:32:32 ESThttp://www.sciencedaily.com/releases/2013/02/130222143233.htmStash of stem cells found in a human parasitehttp://www.sciencedaily.com/releases/2013/02/130222143142.htm Researchers have now found stem cells inside the parasite that cause schistosomiasis, one of the most common parasitic infections in the world. These stem cells can regenerate worn-down organs, which may help explain how they can live for years or even decades inside their host.Fri, 22 Feb 2013 14:31:31 ESThttp://www.sciencedaily.com/releases/2013/02/130222143142.htmHas evolution given humans unique brain structures?http://www.sciencedaily.com/releases/2013/02/130222120753.htm Humans have at least two functional networks in their cerebral cortex not found in rhesus monkeys. This means that new brain networks were likely added in the course of evolution from primate ancestor to human.Fri, 22 Feb 2013 12:07:07 ESThttp://www.sciencedaily.com/releases/2013/02/130222120753.htmFruit flies force their young to drink alcohol for their own goodhttp://www.sciencedaily.com/releases/2013/02/130222102958.htm When fruit flies sense parasitic wasps in their environment, they lay their eggs in an alcohol-soaked environment, essentially forcing their larvae to consume booze as a drug to combat the deadly wasps. The finding adds to the evidence that using toxins in the environment to medicate offspring may be common across the animal kingdom.Fri, 22 Feb 2013 10:29:29 ESThttp://www.sciencedaily.com/releases/2013/02/130222102958.htmWorld premiere of muscle and nerve controlled arm prosthesishttp://www.sciencedaily.com/releases/2013/02/130222075730.htm Electrodes have been permanently implanted in nerves and muscles of an amputee to directly control an arm prosthesis, for the first time. The result allows natural control of an advanced robotic prosthesis, similarly to the motions of a natural limb.Fri, 22 Feb 2013 07:57:57 ESThttp://www.sciencedaily.com/releases/2013/02/130222075730.htmInfluenza study: Meet virus' new enemyhttp://www.sciencedaily.com/releases/2013/02/130221194241.htm Virologists have discovered a new class of molecular compounds capable of killing the influenza virus. Working on the premise that too much of a good thing can be a killer, the scientists have advanced previous researchers' methods of manipulating an enzyme that is key to how influenza replicates and spreads. The new compounds will lead to a new generation of anti-influenza drugs that the virus' strains can't adapt to, and resist, as easily as they do Tamiflu.Thu, 21 Feb 2013 19:42:42 ESThttp://www.sciencedaily.com/releases/2013/02/130221194241.htmParticle physics research sheds new light on possible 'fifth force of nature'http://www.sciencedaily.com/releases/2013/02/130221192736.htm In a breakthrough for the field of particle physics, researchers have established new limits on what scientists call "long-range spin-spin interactions" between atomic particles. These interactions have been proposed by theoretical physicists but have not yet been seen. Their observation would constitute the discovery of a "fifth force of nature" (in addition to the four known fundamental forces: gravity, weak, strong and electromagnetic) and would suggest the existence of new particles, beyond those presently described by the Standard Model of particle physics.Thu, 21 Feb 2013 19:27:27 ESThttp://www.sciencedaily.com/releases/2013/02/130221192736.htmScientists make older adults less forgetful in memory testshttp://www.sciencedaily.com/releases/2013/02/130221143946.htm Scientists have found compelling evidence that older adults can eliminate forgetfulness and perform as well as younger adults on memory tests. The cognitive boost comes from a surprising source -- a distraction learning strategy.Thu, 21 Feb 2013 14:39:39 ESThttp://www.sciencedaily.com/releases/2013/02/130221143946.htmRobotic bat wing engineered: Researchers uncover flight secrets of real batshttp://www.sciencedaily.com/releases/2013/02/130221143942.htm Researchers have developed a robotic bat wing that is providing valuable new information about dynamics of flapping flight in real bats. From an engineering perspective, the researchers hope the data may make for better aircraft, especially micro air vehicles. From a biological and evolutionary perspective, building the robot offered the researchers a new perspective on how bat anatomy is adapted to deal with the forces generated by flapping wings.Thu, 21 Feb 2013 14:39:39 ESThttp://www.sciencedaily.com/releases/2013/02/130221143942.htmCaves point to thawing of Siberia: Thaw in Siberia's permafrost may accelerate global warminghttp://www.sciencedaily.com/releases/2013/02/130221143910.htm Evidence from Siberian caves suggests that a global temperature rise of 1.5 degrees Celsius could see permanently frozen ground thaw over a large area of Siberia, threatening release of carbon from soils, and damage to natural and human environments.Thu, 21 Feb 2013 14:39:39 ESThttp://www.sciencedaily.com/releases/2013/02/130221143910.htmFloral signs go electric: Bumblebees find and distinguish electric signals from flowershttp://www.sciencedaily.com/releases/2013/02/130221143900.htm Flowers' methods of communicating are at least as sophisticated as any devised by an advertising agency, according to a new study. The research shows for the first time that pollinators such as bumblebees are able to find and distinguish electric signals given out by flowers. However, for any advertisement to be successful, it has to reach, and be perceived by, its target audience.Thu, 21 Feb 2013 14:39:39 ESThttp://www.sciencedaily.com/releases/2013/02/130221143900.htmProtein 'passport' helps nanoparticles get past immune systemhttp://www.sciencedaily.com/releases/2013/02/130221143858.htm The immune system exists to destroy foreign objects, whether they are bacteria, viruses, flecks of dirt or splinters. Unfortunately, drug-delivering nanoparticles and implanted devices like pacemakers are just as foreign and subject to the same response. Now, researchers have figured out a way to provide a "passport" for such therapeutic devices, enabling them to bypass the body's security system.Thu, 21 Feb 2013 14:38:38 ESThttp://www.sciencedaily.com/releases/2013/02/130221143858.htmHow human language could have evolved from birdsong: Researchers propose new theory on deep roots of human speechhttp://www.sciencedaily.com/releases/2013/02/130221141608.htm The sounds uttered by birds offer in several respects the nearest analogy to language," Charles Darwin wrote in "The Descent of Man" (1871), while contemplating how humans learned to speak. Language, he speculated, might have had its origins in singing, which "might have given rise to words expressive of various complex emotions." Linguistics and biology now researchers propose a new theory on the deep roots of human speech.Thu, 21 Feb 2013 14:16:16 ESThttp://www.sciencedaily.com/releases/2013/02/130221141608.htmJourney to the limits of space-time: Black hole simulations on supercomputers present new view of jets and accretion diskshttp://www.sciencedaily.com/releases/2013/02/130221141606.htm Black holes shape the growth and death of the stars around them through their powerful gravitational pull and explosive ejections of energy. In a recent article, researchers predicted the formation of accretion disks and relativistic jets that warp and bend more than previously thought, shaped by the extreme gravity of the black hole and by powerful magnetic forces generated by its spin.Thu, 21 Feb 2013 14:16:16 ESThttp://www.sciencedaily.com/releases/2013/02/130221141606.htmColdness triggers northward flight in monarch butterflies: Migration cycle may be vulnerable to global climate changehttp://www.sciencedaily.com/releases/2013/02/130221141259.htm Each fall millions of monarch butterflies migrate south in order to escape frigid temperatures, traveling up to 2,000 miles to an overwintering site in a specific grove of fir trees in central Mexico. A new study suggests that exposure to coldness found in the microenvironment of the monarch's overwintering site triggers their return north every spring. Without this cold exposure, the monarch butterfly would continue flying south.Thu, 21 Feb 2013 14:12:12 ESThttp://www.sciencedaily.com/releases/2013/02/130221141259.htmMercury may have harbored an ancient magma ocean: Massive lava flows may have given rise to two distinct rock typeshttp://www.sciencedaily.com/releases/2013/02/130221115808.htm By analyzing Mercury's rocky surface, scientists have been able to partially reconstruct the planet's history over billions of years.Thu, 21 Feb 2013 11:58:58 ESThttp://www.sciencedaily.com/releases/2013/02/130221115808.htmDiscovering the birth of an asteroid trailhttp://www.sciencedaily.com/releases/2013/02/130221115217.htm Unlike comets, asteroids are not characterised by exhibiting a trail, but there are now ten exceptions. Researchers have observed one of these rare asteroids from the Gran Telescopio Canarias (Spain) and have discovered that something happened around the 1st July 2011 causing its trail to appear: maybe internal rupture or collision with another asteroid.Thu, 21 Feb 2013 11:52:52 ESThttp://www.sciencedaily.com/releases/2013/02/130221115217.htmScientists unveil secrets of important natural antibiotichttp://www.sciencedaily.com/releases/2013/02/130221104359.htm An international team of scientists has discovered how an important natural antibiotic called dermcidin, produced by our skin when we sweat, is a highly efficient tool to fight tuberculosis germs and other dangerous bugs.Thu, 21 Feb 2013 10:43:43 ESThttp://www.sciencedaily.com/releases/2013/02/130221104359.htmIn rich and poor nations, giving makes people feel better than getting, research findshttp://www.sciencedaily.com/releases/2013/02/130221104357.htm Feeling good about spending money on someone else rather than for personal benefit may be a universal response among people in both impoverished countries and rich nations, according to new research.Thu, 21 Feb 2013 10:43:43 ESThttp://www.sciencedaily.com/releases/2013/02/130221104357.htmDisruption of circadian clock linked to obesity, diabetes and heart attackshttp://www.sciencedaily.com/releases/2013/02/130221091829.htm Disruption in the body's circadian rhythm can lead not only to obesity, but can also increase the risk of diabetes and heart disease. That is the conclusion of the first study to show definitively that insulin activity is controlled by the body's circadian biological clock. The study, helps explain why not only what you eat, but when you eat, matters.Thu, 21 Feb 2013 09:18:18 ESThttp://www.sciencedaily.com/releases/2013/02/130221091829.htmUsing 3-D printing and injectable molds, bioengineered ears look and act like the real thinghttp://www.sciencedaily.com/releases/2013/02/130220184728.htm Bioengineers and physicians have created an artificial ear -- using 3-D printing and injectable molds -- that looks and acts like a natural ear, giving new hope to thousands of children born with a congenital deformity called microtia. Scientists have described how 3-D printing and injectable gels made of living cells can fashion ears that are practically identical to a human ear. Over a three-month period, these flexible ears grew cartilage to replace the collagen that was used to mold them.Wed, 20 Feb 2013 18:47:47 ESThttp://www.sciencedaily.com/releases/2013/02/130220184728.htmSimple view of gravity does not fully explain the distribution of stars in crowded clustershttp://www.sciencedaily.com/releases/2013/02/130220163631.htm Gravity remains the dominant force on large astronomical scales, but when it comes to stars in young star clusters the dynamics in these crowded environments cannot be simply explained by the pull of gravity.Wed, 20 Feb 2013 16:36:36 ESThttp://www.sciencedaily.com/releases/2013/02/130220163631.htmBullied children can suffer lasting psychological harm as adultshttp://www.sciencedaily.com/releases/2013/02/130220163629.htm Bullied children grow into adults who are at increased risk of developing anxiety disorders, depression and suicidal thoughts, according to a new study.Wed, 20 Feb 2013 16:36:36 ESThttp://www.sciencedaily.com/releases/2013/02/130220163629.htm

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Weather extremes provoked by trapping of giant waves in the atmosphere

Feb. 25, 2013 ? The world has suffered from severe regional weather extremes in recent years, such as the heat wave in the United States in 2011 or the one in Russia 2010 coinciding with the unprecedented Pakistan flood. Behind these devastating individual events there is a common physical cause, propose scientists of the Potsdam Institute for Climate Impact Research (PIK). The study will be published this week in the Proceedings of the National Academy of Sciences and suggests that man-made climate change repeatedly disturbs the patterns of atmospheric flow around the globe's Northern hemisphere through a subtle resonance mechanism.

"An important part of the global air motion in the mid-latitudes of the Earth normally takes the form of waves wandering around the planet, oscillating between the tropical and the Arctic regions. So when they swing up, these waves suck warm air from the tropics to Europe, Russia, or the US, and when they swing down, they do the same thing with cold air from the Arctic," explains lead author Vladimir Petoukhov.

"What we found is that during several recent extreme weather events these planetary waves almost freeze in their tracks for weeks. So instead of bringing in cool air after having brought warm air in before, the heat just stays. In fact, we observe a strong amplification of the usually weak, slowly moving component of these waves," says Petoukhov. Time is critical here: two or three days of 30 degrees Celsius are no problem, but twenty or more days lead to extreme heat stress. Since many ecosystems and cities are not adapted to this, prolonged hot periods can result in a high death toll, forest fires, and dramatic harvest losses.

Anomalous surface temperatures are disturbing the air flows

Climate change caused by greenhouse-gas emissions from fossil-fuel burning does not mean uniform global warming -- in the Arctic, the relative increase of temperatures, amplified by the loss of snow and ice, is higher than on average. This in turn reduces the temperature difference between the Arctic and, for example, Europe, yet temperature differences are a main driver of air flow. Additionally, continents generally warm and cool more readily than the oceans. "These two factors are crucial for the mechanism we detected," says Petoukhov. "They result in an unnatural pattern of the mid-latitude air flow, so that for extended periods the slow synoptic waves get trapped."

The authors of the study developed equations that describe the wave motions in the extra-tropical atmosphere and show under what conditions those waves can grind to a halt and get amplified. They tested their assumptions using standard daily weather data from the US National Centers for Environmental Prediction (NCEP). During recent periods in which several major weather extremes occurred, the trapping and strong amplification of particular waves -- like "wave seven" (which has seven troughs and crests spanning the globe) -- was indeed observed. The data show an increase in the occurrence of these specific atmospheric patterns, which is statistically significant at the 90 percent confidence level.

The probability of extremes increases -- but other factors come in as well

"Our dynamical analysis helps to explain the increasing number of novel weather extremes. It complements previous research that already linked such phenomena to climate change, but did not yet identify a mechanism behind it," says Hans Joachim Schellnhuber, director of PIK and co-author of the study. "This is quite a breakthrough, even though things are not at all simple -- the suggested physical process increases the probability of weather extremes, but additional factors certainly play a role as well, including natural variability." Also, the 32-year period studied in the project provides a good indication of the mechanism involved, yet is too short for definite conclusions.

Nevertheless, the study significantly advances the understanding of the relation between weather extremes and human-made climate change. Scientists were surprised by how far outside past experience some of the recent extremes have been. The new data show that the emergence of extraordinary weather is not just a linear response to the mean warming trend, and the proposed mechanism could explain that.

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The above story is reprinted from materials provided by Potsdam Institute for Climate Impact Research (PIK).

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


Journal Reference:

  1. Petoukhov, V., Rahmstorf, S., Petri, S., Schellnhuber, H. J. Quasi-resonant amplification of planetary waves and recent Northern Hemisphere weather extremes. Proceedings of the National Academy of Sciences, 2013 DOI: 10.1073/pnas.1222000110

Note: If no author is given, the source is cited instead.

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_science/~3/kxPdGyqhAPI/130225153128.htm

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Italy's Berlusconi: ignore the 'crazy' markets

ROME (AP) ? Italy's post-election political paralysis is spooking financial markets. But former Premier Silvio Berlusconi, whose strong showing defied pro-Europe pundits who thought he was politically finished, insists a government can be formed.

The conservative leader said Tuesday that Italians should ignore the "crazy" markets. His center-left rivals won Parliament's lower house after votes were counted Monday. But they failed to win an absolute majority in the upper house.

Pro-Europe leaders, who were hoping Italy would stay the course of tough economic reforms, are rattled by the prospects of legislative gridlock. Berlusconi says having another election soon won't solve problems, and called on fellow leaders to "make some sacrifices," an apparent call for a coalition government.

Source: http://news.yahoo.com/italys-berlusconi-ignore-crazy-markets-090825369--finance.html

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IKEA halts meatball sales after horsemeat found

PRAGUE/STOCKHOLM (Reuters) - Sweden's IKEA halted sales of its trademark Swedish meatballs in 13 European countries after tests in the Czech Republic on Monday showed the product contained horsemeat.

IKEA, the world's No. 1 furniture retailer and known also for its signature cafeterias in its huge out-of-town stores, said it had stopped sales of all meatballs from a batch implicated in the Czech tests.

The checks were carried out in response to a Europe-wide scandal that erupted last month when tests carried out in Ireland revealed some beef products contained horsemeat. This has triggered recalls of ready-made meals and damaged confidence in Europe's vast and complex food industry.

"We take this very seriously," said IKEA spokeswoman Ylva Magnusson at the company's headquarters in Helsingborg, southern Sweden. "We have stopped selling that specific batch of meatballs in all markets where they may have been sold."

The meatballs, pulled from shelves at IKEA's stores after Czech inspectors discovered they contained horsemeat, had been available in stores in several European countries, the company's Czech spokesman said on Monday.

Besides the Czech Republic, they had also been on sale in Britain, Portugal, Netherlands, Belgium, Slovakia, Hungary, France, Italy, Spain, Greece, Cyprus and Ireland, Magnusson said.

All IKEA's meatballs are produced in Sweden by supplier Familjen Dafgard, which said on its website it was investigating the situation and would receive further test results in the coming days.

IKEA's Magnusson said hopes were that test results would determine the percentage of horsemeat in the meatballs, and that there was is no indication any other batch had been affected.

In Italy, one of the countries where meatballs from the batch were withdrawn from sale, consumer rights group Codacons called for checks on all meat products sold by IKEA in Italy.

"We are ready to launch legal action and seek compensation not only against the companies who are responsible but also those whose duty it was to protect citizens," Codacons President Carlo Rienzi said in a statement.

The Czech State Veterinary Administration reported its findings to the EU's Rapid Alert System for Food and Feed, it said in a statement.

The inspectors took samples for DNA tests in IKEA's unit in the city of Brno from a product labeled as "beef and pork meatballs", the statement said.

Meatballs, a famous Swedish dish, have become a trademark for IKEA across its markets.

(Additional reporting by Keith Weir in Milan; Writing by Anna Ringstrom; Editing by Louise Ireland)

Source: http://news.yahoo.com/czech-inspectors-horsemeat-ikea-meatballs-110059113--finance.html

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