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The (UK) Telegraph has an article on the Vivace tidal / current power device I mentioned recently - Ocean currents can power the world, say scientists The technology can generate electricity in water flowing at a rate of less than one knot - about one mile an hour - meaning it could operate on most waterways and sea beds around the globe. Existing technologies which use water power, relying on the action of waves, tides or faster currents created by dams, are far more limited in where they can be used, and also cause greater obstructions when they are built in rivers or the sea. Turbines and water mills need an average current of five or six knots to operate efficiently, while most of the earth's currents are slower than three knots.

The technology can generate electricity in water flowing at a rate of less than one knot - about one mile an hour - meaning it could operate on most waterways and sea beds around the globe. Existing technologies which use water power, relying on the action of waves, tides or faster currents created by dams, are far more limited in where they can be used, and also cause greater obstructions when they are built in rivers or the sea. Turbines and water mills need an average current of five or six knots to operate efficiently, while most of the earth's currents are slower than three knots.

SLE stands for Systemic lupus erythematosus (SLE).It is a chronic inflammatory disease of unknown cause that affects multiple organ systems. Immunologic abnormalities, especially the production of a number of antinuclear antibodies, are another prominent feature of this disease. Its multisystemic manifestations and the complications from the use of immunosuppressive agents make the diagnosis and management of this entity challenging.

It's an uncomfortable thought: Human activity causing the extinction of thousands of species, and the only way to slow or prevent that phenomenon is to have smaller families and forego some of the conveniences of modern life, from eating beef to driving cars, according to Stanford University scientists Paul Ehrlich and Robert Pringle.

When the tobacco industry was feeling the heat from scientists who showed that smoking caused cancer, it took decisive action. It engaged in a decades-long public relations campaign to undermine the medical research and discredit the scientists. The aim was not to prove tobacco harmless but to cast doubt on the science.

WASHINGTON (May 29, 2008) - More than 1,700 of the nation's most prominent scientists and economists today released a joint statement calling on policymakers to require immediate, deep reductions in heat-trapping emissions that cause global warming. Issued just days before the Senate begins debate on the Lieberman-Warner climate bill, the statement marks the first time leading U.S. scientists and economists have joined together to make such an appeal.

The disconnect between peak oil concerns and the presidential race is almost total. As prices at the pump rise, each candidate is now talking about their so-called solutions to the problem. Despite clear new warning signs from Russia, Saudi Arabia, Mexico, and Nigeria that peak oil is nigh, the candidates remain unwaveringly oblivious to the true causes of rising fuel prices, preferring instead to dwell on irrelevant-actually, counterproductive-measures like suspending the federal gas tax during the summer months or taxing Big Oil. This is akin to putting a band-aid on a melanoma.

The cost of operating an automobile has intrigued me since I started riding a bike as an adult. From asking owners, I estimated in 1965 that a car cost about 25¢ a mile to operate, which caused a fellow student to scream at me. In the late 70's, when I was an owner, I figured the operating cost at 14¢ a mile, which was unrealistically low. We tend to believe what we want to believe.

From Holland, the country famous for its windmills, comes a new design for home wind power. Looking like an eggbeater, it spins quieter and at lower wind speeds than a lot of traditional propeller-type turbines. It's now standard for big wind turbines to have propeller blades. Much of the turning force is generated at the tips, which slice perpendicularly through the air, causing a swooshing noise that some residents nearby have said they find unnerving.

The best ways to improve energy security, mitigate global warming and reduce the number of deaths caused by air pollution are blowing in the wind and rippling in the water, not growing on prairies or glowing inside nuclear power plants, says Mark Z. Jacobson, a professor of civil and environmental engineering at Stanford. And "clean coal," which involves capturing carbon emissions and sequestering them in the earth, is not clean at all, he asserts.

Washington, DC-Nevada Senator Harry Reid joined other Democratic senators at a press conference today to unveil the Consumer-First Energy Act of 2008, a bill that addresses the root causes of high gas prices. Seven years of the Bush Administration's disastrous energy policies have enriched Big Oil and market speculators at the expense of American consumers. Democrats are committed to providing relief to consumers and strengthening our economic, energy and national security.

Working in Haiti, Shawn Frayne, a 28-year-old inventor based in Mountain View, Calif., saw the need for small-scale wind power to juice LED lamps and radios in the homes of the poor. Conventional wind turbines don't scale down well-there's too much friction in the gearbox and other components. "With rotary power, there's nothing out there that generates under 50 watts," Frayne says. So he took a new tack, studying the way vibrations caused by the wind led to the collapse in 1940 of Washington's Tacoma Narrows Bridge (aka Galloping Gertie).

Bayer has honored the Professor Eberhard Jochem of the Fraunhofer Institute for Systems and Innovation Research (ISI) for "pioneering technical and economic contributions to energy efficiency." Professor Jochem's commitment to environmental causes dates to his childhood, when he observed a cloud of pollution darkening his home while returning to the Ruhr district of Germany from a trip through the Netherlands by bicycle. Professor Jochem believes that a "commercially profitable 80 percent boost in energy efficiency in the industrialized nations" is possible before the end of this century. By combining his theotical and practical expertise, Professor Jochem has proven that hypothesis, making him a particularly effective advocate for energy efficiency. The key contributors to this tremendous goal are described further below.

Any individual who has surfed over the internet must have come across one phrase'BUY VIAGRA'.I sometimes wonder whether we actually know what is viagra.Sildenafil has greatly improved the treatment of erectile dysfunction.This drug is effective in a broad range of causes of erectile dysfunction like diebetogenic[due to diabetes],vasculogenic

Endometriosis is a very common disease in women of reproductive age group.It is an enigmatic condition because the exact cause and pathology is not clearly known.

Peptic ulcer is a broad term that consist of both duodenal ulcer and gastric ulcer.Normally the inside of the stomach and duodenum is protected by a mucosal lining[epithelial lining].In case of certain adverse situations

The world's first floating wind turbine is to be towed out to sea this weekend. Statoil's Alexandra Beck Gjorv told the BBC the technology, the Hywind, to be put off Norway's coast - "should help move offshore wind farms out of sight". And it could lead to offshore wind farms eventually being located many miles offshore, away from areas where they cause disruption, Ms Gjorv added. This would benefit military radar operations, the shipping industry, fisheries, bird life and tourism.

Staphylococcal food poisoning usually presents with vomiting,abdominal pain and diarrhea.Vomiting and diarrhea are the predominant symptoms.This condition is caused by the enterotoxins of staphylococcus aureus.