Sunday, August 23, 2009

Kriya Yoga


Paramhansa Yogananda taught Kriya Yoga as a spiritual path that includes three other techniques, along with discipleship to the Kriya line of Masters.

The Kriya technique is not a 'magic bullet' that will give one instant spiritual progress. It's effective only to the extent that the Kriya yogi practices it with awareness, sensitivity, and an open heart.

Ananda teaches the four techniques that encompass the Path of Kriya, just as Yogananda taught them: the Energization Exercises; the Hong-Sau technique of concentration; the Aum technique of meditation; and the Kriya technique.

After establishing the first three techniques as part of a daily meditation practice, one can receive the Kriya technique. This process takes about a year, or more, depending on the student.

Also important to the Path of Kriya is discipleship.


“To tune in to the guru’s consciousness, visualize him in the spiritual eye. Mentally call to him there. Imagine his eyes, especially, gazing at you. Invite his consciousness to inspire your own.

“Then, after calling to him for some time, try to feel his response in your heart. The heart is the center of intuition in the body. It is your ‘radio-receiver.’

“Your ‘broadcasting station’ is situated in the Christ center between the eyebrows. It is from this center that your will broadcasts into the universe your thoughts and ideas.

“Once you feel an answer in the heart, call to the guru deeply, ‘Introduce me to God'."
— Paramhansa Yogananda




When money grows on trees



Nature Reports Climate Change
Published online: 13 August 2009 | doi:10.1038/climate.2009.78


Protecting forests offers a quick and cost-effective way of reducing emissions, but agreeing a means to do so won't be easy. Mark Schrope reports.

Although chopping and burning trees causes an estimated one-fifth of global greenhouse gas emissions, protecting forests has historically been avoided in international climate negotiations1. But as the world inches towards agreeing a new — and hopefully effective — climate deal this December in Copenhagen, addressing the issue is being billed as one of the hallmarks of a successful treaty.

It is now largely acknowledged that protecting forests is not only necessary, it could also be the quickest and least expensive path to early and significant emissions reductions. But deciding to do something about it and agreeing on what needs to be done are two very different matters.

The complexity of the issue was what kept it off the table in Kyoto, where the last global climate treaty was agreed in 1997. Discussions at the most recent UN climate change meeting, in Bonn this June, suggests it's still nearly as thorny a topic now as it was then.

The second of five sessions this year that precede the Copenhagen conference, the Bonn meeting kicked off with a moderately sized, 53-page negotiating text, about a third of which focused on the topic of protecting forests. By the end of the meeting, every single statement in the text had been contested to some degree by at least one group or country, and with comments and proposals, the document ballooned to a weighty 250 pages.

Expanding options

Some of issues raised are rooted in serious ethical and environmental concerns, such as how to protect indigenous people and ensure compliance. But much of what was being mulled over boils down to money: adequately addressing deforestation will require a new flow of billions of dollars from developed to developing nations. Developing countries are scrambling to position themselves to receive as much as possible, while developed nations are doing their best to ensure they get what they want from their investments. The result is a complex debate that is likely to grow more heated as countries move from stating their positions to settling on an agreement that everyone can live with beyond December.

And then there's the mammoth task of deciding what to include in such a scheme. Initial proposals for 'reducing emissions from deforestation', known as RED, had developed into a plan to reduce emissions from deforestation and forest degradation (REDD) by late 2007, when UN climate talks in Bali called for a decision on forests to be made by 2009. Now, negotiators are looking at a scheme called REDD Plus that would deal with deforestation and degradation as well as efforts to protect and enhance existing forest carbon stocks.

REDD Plus is certainly the most comprehensive initiative to date, but it may not be the simplest solution. Greenhouse gas emissions from deforestation in Brazil and Indonesia are an order of magnitude higher than in any other country2 , so if the only goal were to achieve the largest emissions reductions as quickly as possible, then all efforts and funds would be focused on ending land clearing in these countries. But the reality is, of course, not so simple, for two key reasons: longevity and political haggling. "Everybody wants to get a piece of the cake," says Thelma Krug, a negotiator for the Brazilian government on climate and forestry issues and a senior scientist with the National Institute for Space Research (INPE) in São José dos Campos. "Now we have to deal with issues that potentially wouldn't be so complex if we were focusing exclusively on reducing deforestation."

But to have a real impact on atmospheric carbon dioxide levels, trees must remain protected for a century or more against fire, resumed logging and clearing, and slower forms of degradation. Likewise, countries such as Guiana and Gabon that are highly forested but have had little deforestation would ideally be aided in staying on development paths that are not dependent on deforestation, lest major new emissions sources emerge.

Perverse incentives

For now, the term REDD Plus means different things to different countries. While some environmentalists fear the Bonn negotiations lost sight of the key deforestation issues, to others REDD Plus is a welcome shift with significant financial implications. Countries such as India and China are especially supportive of the scheme, in large part because they stand to benefit little from REDD alone. Motivated by such goals as reducing flooding and landslides, they've already ended most of their deforestation and instead are now heavily focused on planting trees. What they have done on their own without financial compensation could become a lucrative pursuit for other countries doing the same, only later — a potentially unfair outcome.

"If you're going to reward reductions in deforestation, then shouldn't you also be rewarding ... places like China that have had these enormous investments in [planting trees] over the past decade and are actively removing carbon dioxide?" says Daniel Zarin, a senior advisor on tropical forest carbon strategy for the David and Lucille Packard Foundation in Gainesville, Florida.

REDD Plus could be incorporated into an agreement in such a way that it compensates countries for such efforts. But some fear that defining activities for financial compensation too narrowly or too broadly, without proper checks and balances, would create the incentive for some very bad behaviour. Too narrow a focus on stopping deforestation could encourage countries to resume or begin clear-cutting or logging that they can later halt in order to collect the associated rewards. If reforesting is rewarded without proper constraints in place, however, a standing forest could be cleared, releasing a huge pulse of carbon dioxide, with little penalty as long as the area is replanted.

Environmental groups such as the Ecosystems Climate Alliance (ECA), a consortium of eight non-governmental organizations, were distressed by REDD Plus discussions at Bonn, which they felt were driven too much by industrial interests. "We're going to end up with the potential for clever accounting rather than actually dealing with the problem of mass degradation of the world's forests," says Sean Cadman at the Wilderness Society Australia, an ECA member based in Hobart.

Besides fearing a regime where land clearing is unintentionally encouraged, or at least permitted, they are concerned that sustainable forest management might include logging practices. Even if sanctioned logging is selective and minimal, says Cadman, it is invariably followed by illegal logging and in some cases by land clearing. "Every time the logging industry comes in it's the beginning of the end of the forest and the people that depend on it," he says.

Markku Kanninen, a senior scientist at the Center for International Forestry Research in Bogor, Indonesia, opposes language that would encourage logging expansion but says that realistically it needs to continue for now in places where it's an integral part of the economy. "We cannot control all land use only from a climate point of view," he says. "Society needs other things." In the case of logging, he argues, someone will end up doing it somewhere. The question is, says Kanninen, "Through REDD, can we promote doing it in a sustainable way or not?"

"We're going to end up with the potential for clever accounting rather than actually dealing with the problem of mass degradation of the world's forests."

Sean Cadman

Daniel Nepstad with the Woods Hole Research Center in Massachusetts, who has worked for decades on deforestation issues in the Amazon, says that as diverse as the goals and interests involved may be, it is possible to formulate REDD Plus language that will keep everyone happy. One key component endorsed by Australia, Norway and others is a comprehensive accounting of overall carbon emissions and sinks at the national level as a way of determining a country's compensation for REDD-related activities.

Under such a system, selective logging or outright clearing, for instance, would significantly dent a country's overall tally of carbon credits. Planting trees would earn a country credits, but only commensurate with the small amount of carbon storage in young trees, so planting and logging would not be exchangeable.

Past efforts by China, India and others to keep their forests intact could also be rewarded if levels of forested land area were compared with a historic baseline far enough in the past. Ongoing efforts to maintain standing forests could be included in such a system, which would encourage the Guianas and Gabons to continue their conservation work.

Due dividends

Besides agreeing on the activities eligible for financial compensation, another major sticking point is deciding how the money will ultimately be delivered to developing nations. The most likely options are a global cap-and-trade system or a direct fund paid into by developed countries.

Brazil, which has already enacted its own plan for ending deforestation, is an outspoken opponent of any form of market system. Specifically, it argues that if reducing deforestation becomes a source of credits, rich nations will buy them as offsets instead of reigning in their own emissions. "Under an offsetting mechanism, due to its nature, the gain to the climate is null," says Krug. That fear — that a REDD offsetting system would, to a degree, let developed countries off the hook — is a persistent one. It was the chief concern that kept developing nations from supporting inclusion of a REDD component in the Kyoto Protocol.

If parties to a new treaty agree to an offset system despite opposition, a related and pervasive worry is that any market established could be flooded with forestry-related credits, which would probably be much cheaper than other options. This too could curtail efforts to reduce emissions by other, more expensive means. The problem is not easily solved, but possibilities include imposing set prices on credits or establishing parameters ahead of time for how many total credits could be sold from a given country.

Norway — an established leader in the push for REDD and a major supporter of ongoing REDD work — has put forward a phased approach that offers a compromise between market and fund solutions. This would entail using voluntary funds to support the initial development of much-needed infrastructure before eventually shifting to compensation based on verified results. This later compensation would probably be handled by an offset system. If the United States and California are successful in their current bids to build cap-and-trade systems with reducing deforestation as a major component, it could push negotiations towards an eventual market system.

Once countries receive their due dividends, an even thornier issue may be ensuring the funds end up in the hands of legitimate recipients. Those most affected by efforts to end deforestation will be indigenous people that depend on forests and the activities that require clearing or degrading them. The fear is that bureaucratic pits could swallow money coming in, leaving little compensation for indigenous groups' economic losses. "The big concern really is that once trees and carbon take on more value, either nations or industries will come in and claim those resources," says Nepstad. This danger was highlighted by a recent violent uprising in Peru after the government tried to open the Amazon to mining, oil and timber development in a way that indigenous people felt stripped them of territorial rights.

"We cannot control all land use only from a climate point of view. Society needs other things."

Markku Kanninen

As strange as it may seem, something as simple as a single letter can have profound implications in international negotiations. One point of debate is whether to refer to "indigenous people" or "indigenous peoples" in a potential Copenhagen treaty. Mentioning "peoples" can be interpreted as conferring — or at least inferring — sovereignty for groups. This is especially troublesome to countries such as the United States and Canada that still have lingering issues in their relationships with native populations. Some problems might be avoided by using REDD language that doesn't reference the UN Declaration on the Rights of Indigenous Peoples (UN-DRIP), which key players such as the US have not ratified. But indigenous-group representatives meeting at a conference in Anchorage, Alaska, in April called for climate negotiations to respect the UN-DRIP. "We're very hopeful that we can agree on the substance of this and not have to fight through the language issues," says Jonathan Pershing, the US State Department's deputy special envoy for climate change. "I don't think we have to get sidetracked; my sense is there are ways to manage this."

There is no simple solution to the indigenous issues, but there are at least general ideas about how they can be dealt with. Norway's proposed language from Bonn vaguely requires REDD participants to cooperate in good faith with indigenous people and local communities. "Our intention here is that there should be documentation that a country has been in consultation with indigenous peoples," says Audun Rosland, Norway's chief REDD negotiator.

Road to Copenhagen

"I think there is still a long way to go in the negotiations," says Clare Walsh, assistant secretary for international negotiations in Australia's Branch Department of Climate Change in Canberra. "An awful lot of issues are open to debate." She points out that the real negotiations — getting those hundreds of pages of comments from Bonn whittled back down to a cohesive agreement — have only just begun and will keep delegations busy at the next meeting in Bonn in August and others scheduled before Copenhagen.

Just how much countries will be willing to bend in order to come to an agreement is not clear. Zarin says, "That's the $64,000 question, isn't it? Who is going to compromise and what those compromises are going to be is really difficult to see" — not least because REDD efforts will ultimately have to be defined within the larger context of an international climate change agreement.

Nonetheless, some are optimistic. "If you get an agreement in Copenhagen, REDD will certainly be an important part of that," says Rosland. Of course, there is no guarantee that there will be a treaty agreement in December. If there is, it's quite likely that the framework will be only broadly defined, with the details to be worked out in coming years, as was the case with Kyoto.

Carlos Nobre from INPE in Brazil says that REDD's fate, along with that of the larger effort, may be determined by the degree to which key countries and their leaders step in to push negotiations forward. "If it is left only to professional diplomats, they will pretty much do what they have been doing for 15 years, which is move in the right direction, but in slow increments," he says. "But perhaps Copenhagen should be revolutionary, not evolutionary. Eventually some of the visionaries will find that this is the time for them to move."



References

  1. IPCC. Climate Change 2007: Mitigation of Climate Change (eds Metz, B., Davidson, O. R., Bosch, P. R., Dave, R. & Meyer, L. A.) 798 (Cambridge University Press, Cambridge, UK, and New York, 2007).
  2. Global Forest Resources Assessment 2005: Progress Towards Sustainable Forest Management. Forestry paper 147, 320 (Food and Agriculture Organization of the United Nations, Rome, 2006); http://tiny.cc/redd2
  3. Rodrigues, A. S. L. et al. Science 324, 1435–1437 (2009).
  4. Carbon Emissions from Land Use, 1950 to 2000 (World Resources Institute, Washington DC, 2003); http://tiny.cc/redd4

Mark Schrope is a freelance science writer based in Florida.

Nature Reports Climate Change


Research Highlights


Published online: 13 August 2009 | doi:10.1038/climate.2009.77


Proc. Natl Acad. Sci. USA 106, 12235–12240 (2009)

The acid test by Alicia Newton

It's well recognized that absorption of atmospheric CO2 is making the ocean more acidic, but there are few long-term data sets that document this trend.

Now research by John Dore of Montana State University and colleagues shows a significant increase in the acidity of surface waters over nearly 20 years at Station ALOHA in the central North Pacific Ocean. The group found that since 1988 surface pH at ALOHA has been falling by 0.0019 plusminus 0.0002 each year, a value in line with that expected from increasing atmospheric CO2 entering the ocean. However, they also found that seasonal peaks in biological productivity and temperature — as well as year-to-year fluctuations in ocean mixing — affect the surface pH. Below the mixed layer — that portion of the ocean influenced strongly by the atmosphere — pH has decreased more rapidly, most markedly at a depth of 250 metres. This may be due to the invasion of acidic waters from the north or to the transport of CO2 from surface waters as organisms die, sink to these depths and degrade.

The team concludes that sparse or short-term records could miss the long-term trends in ocean acidification caused by rising atmospheric CO2 concentrations.

India makes headway on climate policy


Policy Watch

Nature Reports Climate Change
Published online: 13 August 2009 | doi:10.1038/climate.2009.79


Last week, India laid out an ambitious plan for solar energy. Anna Barnett looks at how far it will go in reducing the country's carbon footprint.


Indian Prime Minister Manmohan Singh last week convened his advisory council on climate change to approve a new solar-energy plan that is among the world's most ambitious. The US$19 billion solar plan is the centrepiece of a detailed road map for domestic climate and energy policy to be laid out ahead of international climate negotiations this December.

Meeting for the first time in over a year, the council on 3 August approved targets set out in a draft proposal1. Under the proposed plan, solar capacity will be increased from its current 5 megawatts to 20 gigawatts (GW) by 2020, with solar lighting reaching 20 million households and solar panels covering a million roofs. In the longer term, capacity will be extended to 100 GW by 2030 and to 200 GW by 2050. In comparison, Japan is aiming for 28 GW of solar power by 2020, and the Chinese government anticipates at least 10 GW by 2020.

"This should get people off the back of India," says Rajendra Pachauri, a member of Singh's climate council and chairman of the Intergovernmental Panel on Climate Change. The world's fourth largest greenhouse gas emitter, India has been criticized for its adamant resistance to legally binding limits on its future emissions. "Negotiators should see this as India's attempt to go the extra mile," Pachauri says.

A key premise of the Indian plan is that subsidizing a solar industry scale-up will reduce costs so that by 2030 solar power is no more expensive than fossil fuels. Solar energy currently costs over four times more than fossil fuel-based energy, but the business models and production lines needed to start on cutting costs are already in place, says Shirish Sinha, head of climate change and energy at the Worldwide Fund for Nature India in New Delhi. "It's an ambitious plan, but it's a doable plan," Sinha says.

By itself, the plan will make only a small difference to the country's carbon footprint. By 2020 the solar splurge will save 42 million tonnes of carbon dioxide from entering the atmosphere annually. That's just two per cent of the total annual energy-related emissions projected for India in 2020, according to figures from the International Energy Agency2. But the 'solar mission' is one of eight pathways outlined in India's National Action Plan on Climate Change in 2008, and once details are announced for other national missions — which focus on topics ranging from energy efficiency to sustainable habitats — the overall package is likely to cut emissions by about five to six per cent from business as usual.

Given the country's very low per capita emissions — about one-fourth the global average — "it would be unfair and unethical to expect India to do any more than this," says Pachauri. M. V. Ramana, an expert on Indian energy policy at Princeton University in New Jersey, says, "There is no agreement on how much, or whether at all, developing countries need to reduce emissions. If and when there is agreement on that, 42 million tonnes may well be significant."

Pachauri says the climate council and liaising government agencies put in a flurry of work last year to flesh out proposals for the national missions. By the time governments meet in Copenhagen to agree a global climate deal, India is hoping that these efforts will be seen as evidence of its willingness to act. They may also serve as a shop window for industrialized countries deliberating over international funding for such programs. "The National Action Plan represents what India intends to accomplish within the limitation of its own resources. Obviously, with a supportive global climate regime, we will be able to scale up our efforts," says Shyam Saran, the prime minister's special envoy on climate change.

"My understanding is that as far as the 2020 target is concerned, India is determined to do that by getting resources — beg, borrow, or steal — on its own," says Pachauri. "But when you go beyond that, to 2030 and 100,000 megawatts, that's something India would like to seek support for." That type of two-part message needs to be articulated with care, suggests Ramana. While the government is now promising billions to boost solar power, it has also argued that it can't afford carbon-cutting measures given its urgent development goals — not least expanding its largely coal-fired electricity supply, to which 56 per cent of Indians lack access. What's needed, Ramana says, is a clearer sustainable development vision that would marry such aims. "India is in the early stages of coming up with a climate policy, but the effort is still quite scattered," he says.

The effort is likely to tighten in the coming months: in addition to the shower of planning documents, India heads into bilateral climate talks with China in August and with the United States in September, and will host a high-level conference on technology transfer in October.

References

  1. Jayaraman, K. Nature doi:10.1038/news.2009.774 (2009).
  2. World Energy Outlook 2008 385 (International Energy Agency, Paris, 2008).

Anna Barnett is assistant editor and copy editor of Nature Reports Climate Change.

Saturday, August 22, 2009

Does Exercise Really Keep Us Healthy?


N BRIEF:

While exercise can boost mood, its health benefits have been oversold.

Moderate exercise can reduce the risk of diabetes in people at risk. Exercise may reduce the risk of heart disease and breast and colon cancers.

Though the evidence is mixed, exercise may also provide benefits for people with osteoporosis.

Physical activity alone will not lead to sustained weight loss or reduce blood pressure or cholesterol.

Exercise has long been touted as the panacea for everything that ails you. For better health, simply walk for 20 or 30 minutes a day, boosters say — and you don’t even have to do it all at once. Count a few minutes here and a few there, and just add them up. Or wear a pedometer and keep track of your steps. However you manage it, you will lose weight, get your blood pressure under control and reduce your risk of osteoporosis.

If only it were so simple. While exercise has undeniable benefits, many, if not most, of its powers have been oversold. Sure, it can be fun. It can make you feel energized. And it may lift your mood. But before you turn to a fitness program as the solution to your particular health or weight concern, consider what science has found.

Moderate exercise, such as walking, can reduce the risk ofdiabetes in obese and sedentary people whose blood sugar is starting to rise. That outcome was shown in a large federal study in which participants were randomly assigned either to an exercise and diet program, to take a diabetes drug or to serve as controls. Despite trying hard, those who dieted and worked out lost very little weight. But they did manage to maintain a regular walking program, and fewer of them went on to develop diabetes.

Exercise also may reduce the risk of heart disease, though the evidence is surprisingly mixed. There seems to be a threshold effect: Most of the heart protection appears to be realized by people who go from being sedentary to being moderately active, usually by walking regularly. More intense exercise has been shown to provide only slightly greater benefits. Yet the data from several large studies have not always been clear, because those who exercise tend to be very different from those who do not.

Active people are much less likely to smoke; they’re thinner and they eat differently than their sedentary peers. They also tend to be more educated, and education is one of the strongest predictors of good health in general and a longer life. As a result, it is impossible to know with confidence whether exercise prevents heart disease or whether people who are less likely to get heart disease are also more likely to be exercising.

Scientists have much the same problem evaluating exercise and cancer. The same sort of studies that were done for heart disease find that people who exercised had lower rates of colon and breast cancer. But whether that result is cause or effect is not well established.

Exercise is often said to stave off osteoporosis. Yet even weight-bearing activities like walking, running or lifting weights has not been shown to have that effect. Still, in rigorous studies in which elderly people were randomly assigned either to exercise or maintain their normal routine, the exercisers were less likely to fall, perhaps because they got stronger or developed better balance. Since falls can lead to fractures in people with osteoporosis, exercise may prevent broken bones — but only indirectly.

And what about weight loss? Lifting weights builds muscles but will not make you burn more calories. The muscle you gain is minuscule compared with the total amount of skeletal muscle in the body. And muscle has a very low metabolic rate when it’s at rest. (You can’t flex your biceps all the time.)

Jack Wilmore, an exercise physiologist at Texas A & M University, calculated that the average amount of muscle that men gained after a serious 12-week weight-lifting program was 2 kilograms, or 4.4 pounds. That added muscle would increase the metabolic rate by only 24 calories a day.

Exercise alone, in the absence of weight loss, has not been shown to reduce blood pressure. Nor does it make much difference in cholesterol levels. Weight loss can lower blood pressure and cholesterol levels, but if you want to lose weight, you have to diet as well as exercise. Exercise alone has not been shown to bring sustained weight loss.Just ask Steven Blair, an exercise researcher at the University of South Carolina. He runs every day and even runs marathons. But, he adds, “I was short, fat and bald when I started running, and I’m still short, fat and bald. Weight control is difficult for me. I fight the losing battle.”

The difficulty, Dr. Blair says, is that it’s much easier to eat 1,000 calories than to burn off 1,000 calories with exercise. As he relates, “An old football coach used to say, ‘I have all my assistants running five miles a day, but they eat 10 miles a day.’”

Plastic decomposes in Oceans: Study


WASHINGTON: Environmentalists have long denounced plastic as a pollutant that does not break down. A new study indicates that in the oceans, plastic does decompose, but says that is not a good thing either.

Thousands of tons of plastic debris wind up in the oceans every year, some of it washing up on coasts, some being swirled by currents into the Great Pacific Garbage Patch between California and Hawaii, said to be larger than Texas.

Plastics in daily use are generally assumed to be quite stable," said Katsuhiko Saido, a chemist at Nihon University, Chiba, Japan. "We found that plastic in the ocean actually decomposes as it is exposed to the rain and sun and other environmental conditions, giving rise to yet another source of global contamination that will continue into the future," said Saido, who presented his findings at the annual meeting of the American Chemical Society.

Saido reported that the decomposing plastics release potentially toxic chemicals such as bisphenol A and PS oligomer, which can disrupt the functioning of hormones in animals.

Scientists unravel genes linked to lung cancer in smokers


LONDON: British researchers claim to have unraveled the genetics underlying a smoker's risk of developing lung cancer. Study leader Professor Richard Houlston has identified three areas of DNA that are linked to lung cancer risk in smokers.

Two of them also influence the type of cancer, which develops.

The research team found specific differences associated with lung cancer risk on chromosomes 5, 6 and 15.

It showed that people with genetic changes on chromosome 5 were more likely to develop a type of cancer called adenocarcinoma.

The region highlighted on chromosome 6 appears to influence whether a patient developed adenocarcinoma or another type called squamous cell carcinoma.

And two independent sites on chromosome 15 were found to have a role in whether or not a smoker develops lung cancer.

The researchers suggest that current or former smokers who carry one copy of each of these genetic variants increase their risk of lung cancer by 28 percent.

The risk increases to 80pct in smokers who carry two copies of these genetic variants.

"The next step is to dig deeper to pinpoint which gene, or genes in these regions, cause the increased risk of developing lung cancer and how they actually trigger this increase," BBC News quoted Houlston as saying.

Dr Lesley Walker, director of cancer information at Cancer Research UK who partly funded the research, said smoking was responsible for the vast majority of lung cancers.

"This research shows that inherited genetic variation accounts for some of this risk and the type of lung cancer that develops," she said.

She added: "The best thing a smoker can do to reduce their risk of lung cancer, and a range of other life-threatening conditions, is to quit."

The findings appear in Cancer Research journal.

Appendix is not Vestigial Organ


The appendix is not a useless evolutionary artefact, researchers claim. Researchers at Duke University Medical Center had proposed two years ago that it actually serves a critical function — a safe haven where good bacteria could hang out until they were needed to repopulate the gut after a nasty case of diarrhoea, for example.

In a paper in the Journal of Evolutionary Biology, some of those same researchers along with collaborators from the University of Arizona and Arizona State University conclude that the appendix is a whole lot more than an evolutionary remnant. Not only does it appear in nature much more frequently than previously acknowledged, but it has been around much longer than anyone had suspected.

Their findings show that Charles Darwin was wrong.

“Maybe it's time to correct the textbooks,” says William Parker, the senior author of the study from Duke, said in a press release.

Using a modern approach to evolutionary biology called cladistics, which utilizes genetic information in combination with a variety of other data to evaluate biological relationships that emerge over the ages, Parker and colleagues found that the appendix has evolved at least twice, once among Australian marsupials and another time among rats, lemmings and other rodents, selected primates and humans. “We also figure that the appendix has been around for at least 80 million years, much longer than we would estimate if Darwin's ideas about the appendix were correct.”

Darwin theorised that the appendix in humans and other primates was the evolutionary remains of a larger structure, called a cecum, which was used by now- extinct ancestors for digesting food.

The latest study demonstrates two major problems with that idea. First, several living species, including certain lemurs, several rodents and a type of flying squirrel, still have an appendix attached to a large cecum which is used in digestion.

Second, Parker says the appendix is actually quite widespread in nature. “For example, when species are divided into groups called 'families', we find that more than 70 percent of all primate and rodent groups contain species with an appendix.” Darwin had thought that appendices appeared in only a small handful of animals.

“Darwin simply didn't have access to the information we have,” explains Parker. “If Darwin had been aware of the species that have an appendix attached to a large cecum, and if he had known about the widespread nature of the appendix, he probably would not have thought of the appendix as a vestige of evolution.”



Dr Bhaskar Kr. Singh, BNYS

Facts about Exercise and Health


Although exercise is good for your health, extreme exercise may be physically addictive. Rats given a drug that produces withdrawal in heroin addicts went into withdrawal after running excessively in exercise wheels, according to new research. Rats that ran the hardest had the most severe withdrawal symptoms.

According to a press release, the scientists who conducted the study reason that if excessive exercise is addicting, then maybe, to feel good, addicts could take moderate exercise instead of drugs. The findings also shed light on the potentially fatal eating disorder called anorexia athletica, in which exercise undertaken to shed pounds becomes as compulsive as taking drugs, resulting in even greater weight loss.

"Excessive running shares similarities with drug-taking behaviour," the researchers wrote in the August issue of Behavioural Neuroscience, published by the American Psychological Association.

For those looking for an excuse to hit the couch, however, this study looked at excessive, not moderate, exercise. "As with food intake and other parts of life, moderation seems to be the key. Exercise, as long as it doesn't interfere with other aspects of one's life, is a good thing with respect to both physical and mental health," said lead author Robin Kanarek, Ph.D, of Tufts University.

For several weeks, 44 male and 40 female rats were allowed to either run in exercise wheels or remain inactive. To simulate anorexia athletica, the researchers divided the active and inactive rats into groups whose members were either given food for one hour a day or around the clock. Rats in all four groups were then given naloxone, a medicine for heroin overdose that produces immediate withdrawal symptoms.

Active and inactive rats responded very differently to naloxone, which was given in proportion to their weight. The active rats showed withdrawal symptoms like those seen in narcotics addicts: trembling, writhing, teeth chattering, and drooping eyelids.

The active rats who had access to food for only one hour a day both ran the most and displayed the most severe withdrawal symptoms. Like people with anorexia athletica, they ran so much that they lost significant amounts of weight. Additionally, the more a given rat had run, the worse its withdrawal symptoms after naloxone. In contrast, regardless of how much they ate, inactive rats responded very little to the drug.

Because of the way the active rats responded to naloxone, they seemed to have undergone the same changes in the brain's reward system as rats addicted to drugs. "Exercise, like drugs of abuse, leads to the release of neurotransmitters such as endorphins and dopamine, which are involved with a sense of reward," noted Kanarek.

Insights into behaviours that trigger the release of the brain's "reward" chemicals may lead to addiction treatments that incorporate moderate exercise, according to the researchers. The findings also suggest that active rats given limited food may make a good experimental model for studying and developing treatments for anorexia athletica, added Kanarek.

Because rats and humans share many nervous-system traits, researchers frequently carry laboratory findings like these out into the real world.

Keywords: exercise, fitness, excessive exercise, Behavioural Neuroscience


WHO:Call to Action


17 August 2009
WHO, IFRC, UNSIC, OCHA and UNICEF, prompted by the humanitarian imperative, will work with partners
such as the Red Cross and Red Crescent Societies, NGOs and civil society to support governments and
communities to reduce the impact from the pandemic (H1N1) 2009.


Key principles
 The H1N1 influenza pandemic is spreading rapidly,but its future evolution cannot be predicted. Most data about the pandemic have been acquired in countries with well-functioning health services.fully, without the need for medical care.

 Worldwide, the overwhelming majority of cases continue to experience mild symptoms and recover

.
 Pregnant women and people with underlying medical conditions are known to be at increased risk of severe and sometimes fatal illness.


 Although viruses from all outbreak sites are virtually identical, the impact of the pandemic is likely to be more severe in countries with weak health systems, poor health status, and limited resources.

 In these settings, the pandemic can divert scarce resources and strain already weak health services.

 Countries where health services are overburdened by diseases, such as HIV/AIDS, tuberculosis, and malaria,will have great difficulty managing the surge of cases seen when pandemic influenza spreads.

To reduce the impact of the pandemic
1. Identify populations at increased risk of disease and death

 Identify and prioritize high-risk groups and areas for increased disease (crowded or closed settings) and death (those with underlying illness,pregnancy or poor access to health care).

2. Reduce death by treating acute respiratory illness and pneumonia

 Train, supervise and ensure health care workers,including community health workers, can identify, triage, classify and treat acute respiratory illness and pneumonia in line with national protocols.

 Governments with support by humanitarian partners and donor governments plan for an additional 30 percent buffer stock of medical supplies to treat pneumonia such as paracetamol,antibiotics, and oxygen, at the outpatient and inpatient levels.

 Inform and educate the community about home-care of symptoms of non-severe influenza-like illness including diarrhoea and dehydratation.Include advice about voluntary separation of the sick and when to seek health care.

 If antiviral therapy is available, ensure use for treatment of severe influenza.

3. Reduce spread of the disease

 Prepare and disseminate risk communication messages by health care workers, volunteers and the community on individual and societal prevention measures in line with national policies and local risk assessment. Risk communication should promote home-care of mild cases;reduced time in crowded settings, especially by high-risk groups; and respiratory etiquette and hand hygiene.

 Map and train social mobilization networks to promote prevention measures when activated.
.
 Identify target groups to receive first doses of vaccination and advocate for their access.

 Develop operational plans for mass vaccination,when vaccine is available.

4. Continue critical services and plan for the worst
 Review, revise or create business continuity plans for all key organizations to continue critical operations.

 Revise, reactivate or create contingency plans at the country and local levels that prioritize continuation of critical health and other essential services as part of a whole of society approach.Ensure a scenario for a severe pandemic building on existing multi-hazard multi-sector contingency plans and engage national disaster management organizations.

 Ensure at least 8 to 12 weeks of buffer stocks of essential medicines to continue treating priority conditions (i.e. diarrhoea, malaria, malnutrition,HIV and TB) in the community and in health facilities.

5. Plan and coordinate efforts
 Incorporate pandemic activities into existing coordination mechanisms such as the Health.Cluster/health sector for coordination, resource mapping and mobilization, assessments and gaps, information management, joint strategies,
contingency planning, and training.

 No one agency can provide all of priority interventions.
Instead they should be coordinated by building on capacities and comparative advantages of each partner.



Fasting Jains to the aid of defence scientists

AHMEDABAD: They survive without food for over two weeks, living only on boiled water. And, they may hold answers to quests other than spiritual.
So thinks the Indian Army, which has made the rigorous fasting by Jains during the holy period of Paryushan a subject of focussed study to find solution for the Indian soldier who has to face harsh situations in adverse climes.

With Paryushan on right now, a team of 18 scientists from the Defence Institute of Physiology and Allied Sciences (DIPAS) are camping in the city to seek answers: How does the body and mind of the fasting Jain react to such nutritional deprivation for days? Can fasting be consciously imbibed by people, especially soldiers and astronauts, for survival in challenging situations?

Scientists are studying about 45 Jains in Ahmedabad who have undertaken fasting ranging from three to eight days. Some are also fasting for 16 days. Children, youth in their 20s who have never fasted and religious Jains used to fasting annually are part of this voluntary study project being undertaken at Ramnagar Mota Derasar in Sabarmati area.

"The project began on August 8 and the last batch would complete their fasting on Sunday. The test reports of chemical, physiological and the psychological testing of the volunteers before, during and after the fast period would be documented and analysed," said neuro-physician Dr Sudhir Shah, whose team had pioneered medical documentation of long-term fasting by medically profiling Prahlad Jani, an octogenarian sadhu, who claims to live without drinking and eating and thus not pass urine or stool as well.

"We documented him for 10 days under CCTV cameras. His case features in the book titled 'Mysteries of the World'," said Dr Shah. "The results of this study may help the Indian soldier who go through great adversities, having to stay in areas where food is not available. It can also be applied in prevention and treatment of lifestyle diseases like diabetes and heart diseases," he added.



Link between polished rice intake and diabetes found

By-R.Prasad


Rice is a major source of dietary carbohydrates. But the link between diet, rice in particular, and diabetes has not been studied in great detail till now. A paper published recently in the British Journal of Nutrition shows a clear link between the consumption of white, polished (refined) rice and the prevalence of diabetes.

Every tenth participant of the 2001-02 Phase I CURES (Chennai Urban Rural Epidemiology Study) conducted by Dr. V. Mohan of the Dr. Mohan’s Diabetes Specialities Centre in Chennai was chosen for the current study to see for a link between dietary carbohydrate and diabetes. 1,843 people who did not know their diabetes status were selected for the study.

The chosen participants were then tested for diabetes and their food habits were recorded. The risk factors for diabetes such as sedentary lifestyle, age, BMI (body mass index), etc., were adjusted before trying to find a link between the kind/quantity of food consumed and diabetes.

When the food habits of the chosen participants were studied, it became clear that those who consumed more rice (polished and refined) were more likely to have diabetes.

For instance, the study participants were split into four quartiles based on the amount of various food consumed. It was found that people in the lowest quartile consumed about 320 grams per day of rice compared with 516 grams per day by those in the highest quartile.

“What we found was, as the amount of rice consumption increased, the consumption of other food items, like fruits and vegetables, legumes and dairy products became less,” said Dr. Mohan. “We found a link not just between carbohydrate consumption and diabetes but the kind of carbohydrate consumed and its effect,” said Dr. Mohan.

The carbohydrate derived from polished white rice is 66 per cent of the total carbohydrate intake.

“Another interesting finding was that as the increased intake of rice was at the cost of other other food items,” he said. For instance, in the lowest quartile that consumed less rice, the intake of fruits was about 300 grams per day, while fruit consumption in the highest quartile was 233 grams per day. The same trend was observed in the case of other food items.

But the biggest positive link was found in the case of dairy products. Those having the least quantity of dairy products were more likely to have diabetes; those who consumed the most had less chances of having diabetes.

Polished rice

“It is not that our eating habits have changed in the recent past. Our fathers and grandfathers had also consumed rice. But the kind of rice they consumed and what we consume today are totally different,” he said.

The rice that we get today is the highly refined and polished variety. “The more polished the rice, the more glycaemic index (GI) it would have,” he said. The GI indicates the glucose-raising effect of a food.

Polishing removes the bran and the germ. While the bran contains fibre, protein and vitamin B-complex; polished rice has only starch, which is nothing but carbohydrate.

According to Dr. Mohan, rice used to be 2 per cent polished earlier; now it is polished to 8 per cent -10 per cent.

The only good news is that increased consumer awareness of the ill-effects of various food items has made many companies produce healthier food products. Rice that is relatively less polished is now available in the market. Similarly, many products made from whole-wheat are available.

Courtessy-the hindu

Tuesday, August 18, 2009

WHO Congress on Traditional Medicine


7-9 November 2008, Beijing, China

WHO Congress on Traditional Medicine

Highlights of the first WHO Congress on Traditional Medicine


Traditional Medicine. Satellite symposia were held to discuss related technical topics presented by organizations such as the World Self Medication Industry, the World Federation of Acupuncture-Moxibustion Societies, the World Federation of Chiropractic and the International Pharmaceutical Federation. In total, approximately 1500 people were present at all the events.
  • The "Beijing Declaration" was adopted, promoting the safe and effective use of traditional medicine. It calls on WHO Member States and other stakeholders to take steps to integrate traditional medicine (TM) / complementary and alternative medicine (CAM) into national health systems.
  • Member States shared national experiences and information in five areas, which will aid countries in taking further action in the future:
      • National Policy on TM/CAM
      • National Regulation of Traditional and Herbal Medicines
      • TM in Primary Health Care
      • National Regulation of TM/CAM Practice
      • Research on TM/CAM

    3. Participants visited community health centers, clinics and hospitals of traditional medicine, which are models to show how traditional medicine and western medicine have worked together and how they have been integrated into China's health systems

    International Forum on Integration of TM/CAM into Health System

    During the International Forum on Integration of TM/CAM into Health Systems, 26 delegates presented short national reports outlining the regulatory framework for traditional medicine, products and practice, in their respective countries. To facilitate discussion, the presentations were separated into five topic areas: National Policy on TM/CAM and integration into national health systems; National Regulation of Traditional and Herbal Medicines; Traditional Medicine in Primary Health Care; National Regulation of TM/CAM Practice; and Research and Development of Traditional Medicine. While presentations demonstrated that it is often necessary to tailor legislation and delivery to reflect the needs and traditions of the individual countries, a number of common themes and issues did emerge. Most notable of these was the importance of practitioner training; issues related to safety; the need to enhance research into both products and practices; the importance of labelling and information as this relates to supporting informed choice; and the need for appropriate integration into primary health care.

    Delegates also heard from two WHO partners (The Nippon Foundation and the Regional Government for Lombardy) who described their work in this area. The four Non-Governmental Organizations who were hosting satellite symposia were also given the opportunity to make presentations and observe at the Congress.


    "Beijing Declaration"


    The key outcome of the Congress was the "Beijing Declaration", which identified common aims and principles reached by participants at the Congress. The preparation of the declaration was structured. Prior to the Congress, the first draft was sent out, and comments were gathered and modifications made accordingly. A second draft was sent to participants before the Congress. During the Congress, an ad hoc drafting team was created to discuss and harmonize the comments submitted to WHO prior to the Congress and to enable the Declaration to be adopted during by the Congress.

    During the final session of the International Forum, chaired by the Minister of Health of the Union of Myanmar, Congress delegates adopted the Beijing Declaration. In addition to preamble text noting a number of related initiatives and reflecting the importance of national contexts with regard to capacity, priorities and relevant legislation, the declaration identified the following six articles:

    • The knowledge of traditional medicines, treatments and practices should be respected, preserved, promoted and communicated widely and appropriately based on the circumstances in each country;
    • Governments have a responsibility for the health of their people and should formulate national policies, regulations and standards, as part of comprehensive national health systems to ensure appropriate, safe and effective use of traditional medicine;
    • Recognizing the progress of many governments to date in integrating traditional medicine into their national health system, we call on those who have not yet done so to take action;
    • Traditional medicine should be further developed based on research and innovation in line with the “Global Strategy and Plan of Action on Public Health, Innovation and Intellectual Property” adopted at the 61st World Health Assembly in 2008.
    • Governments, international organisations and other stakeholders should collaborate in implementing the global strategy and plan of action;
    • Governments should establish systems for the qualification, accreditation or licensing of traditional medicine practitioners. Traditional medicine practitioners should upgrade their knowledge and skills based on national requirements; and
    • The communication between conventional and traditional medicine providers should be strengthened and appropriate training programmes be established for health professionals, medical students and relevant researchers.

    The Beijing Declaration will serve to promote the safe and effective use of traditional medicine, and to call on WHO Member States and other stakeholders to take steps to integrate TM/CAM into national health systems.

    During the closing of the International Forum, Dr Carissa Etienne, WHO Assistant Director-General for Health Systems and Services said, "This is a landmark declaration, after a landmark Congress."

    Beijing Declaration


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