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Although the idea that instrumental learning can occur subconsciously has been around for nearly a century, it had not been unequivocally demonstrated. Now, new research uses sophisticated perceptual masking, computational modeling, and neuroimaging to show that instrumental learning can occur in the human brain without conscious processing of contextual cues.

Elevated cholesterol levels return to normal or near normal levels over time in four out of 10 children with uncontrollable epilepsy treated with the high-fat ketogenic diet, according to results reported in the Journal of Child Neurology.

Taking 1000 mg of a specific olive leaf extract (EFLA 943) can lower cholesterol and lower blood pressure in patients with mild hypertension (high blood pressure). These findings came from a "Twins" trial, in which different treatments were given to identical twins. By doing this, researchers could increase the power of their data by eliminating some of the uncertainties caused by genetic variations between individual people.

High gas prices and heightened environmental awareness have led more bicyclists to take to already-congested streets. Road rage has escalated quickly — drivers complain that cyclists ignore traffic laws and cyclists contend that drivers deliberately try to run them down.

As production of crude oil falls in Mexico, debate continues on the issue of privatization of the oil monopoly. Without radical reform, Mexico could run out of oil in less than a decade.

A team of researchers sorting through satellite images of cows in 300 pastures makes a surprising discovery: Cows tend to face either magnetic north or south when grazing or resting.

Tropical Storm Gustav threatens the Louisiana coast.

A project to desalinate ocean water gets final approval, but opposition continues.

Buses at the Dem's convention run on beer waste, while Republicans plan to use old furniture.

Nine Baltic sea states all scored failing grades in an annual WWF evaluation of their performance in protecting and restoring the world’s most damaged sea. The assessment, presented today at the Baltic Sea Festival, graded the countries on how well they are doing in six separate areas - biodiversity, fisheries, hazardous substances, marine transport and eutrophication - and on how they have succeeded in developing an integrated sea-use management system.

With this year's legislative session in its final days, lawmakers Monday unveiled a bill mandating new fees from electricity ratepayers to fund a University of California-run global warming research center.

WWF has welcomed the initiative taken by a new group of countries in showing the way forward as the latest round of UN climate talks drew to a close in Accra, Ghana today.

After four years of separation, Charles, Prince of Wales and heir to the British throne, and his wife, Princess Diana, formally divorce.

On July 29, 1981, nearly one billion television viewers in 74 countries tuned in to witness the marriage of Prince Charles, heir to the British throne, to Lady Diana Spencer, a young English schoolteacher. Married in a grand ceremony at St. Paul's Cathedral in the presence of 2,650 guests, the couple's romance was, for the moment, the envy of the world. Their first child, Prince William, was born in 1982, and their second, Prince Harry, in 1984.

Before long, however, the fairy tale couple grew apart, an experience that was particularly painful under the ubiquitous eyes of the world's tabloid media. Diana and Charles announced a separation in 1992, though they continued to carry out their royal duties. In August 1996, two months after Queen Elizabeth II urged the couple to divorce, the prince and princess reached a final agreement. In exchange for a generous settlement, and the right to retain her apartments at Kensington Palace and her title of "Princess of Wales," Diana agreed to relinquish the title of "Her Royal Highness" and any future claims to the British throne.

In the year following the divorce, the popular princess seemed well on her way to achieving her dream of becoming "a queen in people's hearts," but on August 31, 1997, she was killed with her companion Dodi Fayed in a car accident in Paris. An investigation conducted by the French police concluded that the driver, who also died in the crash, was heavily intoxicated and caused the accident while trying to escape the paparazzi photographers who consistently tailed Diana during any public outing.

Prince Charles married his longtime mistress, Camilla Parker Bowles, on April 9, 2005.

For many years, fingers have been pointed at agriculture whenever pesticides are detected in rivers and streams. Studies now show that built-up areas also account for a considerable proportion of such inputs. For example, substances can be leached out of facade renders and paints by rainwater and enter the environment, where they may have toxic effects on organisms.

A new LIDAR measurement system -- unique in the world -- will provide continuous data on atmospheric humidity for Western Switzerland's weather forecasting headquarters.

A fall in levels of atmospheric carbon dioxide, close to that of pre-industrial times, explains the transition from a mostly ice-free Greenland of three million years ago to the ice-covered region we see today.