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A two-year study led by researchers from Ben-Gurion University of the Negev (BGU) reveals that low-carbohydrate and Mediterranean diets may be just as safe and effective in achieving weight loss as the standard, medically prescribed low-fat diet, according to a new study published in the prestigious New England Journal of Medicine.

In the study, 322 moderately obese people were intensively monitored and were randomly assigned one of three diets: a low-fat, calorie-restricted diet; a Mediterranean calorie-restricted diet with the highest level of dietary fiber and monounsaturated/saturated fat; or a low-carbohydrate diet with the least amount of carbohydrates, highest fat, protein, and dietary cholesterol. The low-carb dieters had no caloric intake restrictions.

It's no secret that the Commonwealth Fund doesn't like private health care and their new national scorecard states that scores on access have declined significantly since the first national scorecard in 2006. Despite spending more on health care than any other industrialized nation, they state, the U.S. overall continues to fall far short on key indicators of health outcomes and quality, with particularly low scores on efficiency.

The Tunguska event is regarded as one of the biggest natural disasters of modern times. On 30 June 1908 one or more explosions took place in the area close to the Tunguska River north of Lake Baikal. The explosion(s) flattened around 80 million trees over an area of more than 2000 square kilometres.

The strength of the explosion is estimated to have been equivalent to between five and 30 megatons of TNT. That is more than a thousand times as powerful as the Hiroshima bomb.

This almost unpopulated region of Siberia was first studied in 1927 by Professor Leonid A. Kulik. There are a number of different theories about what caused the catastrophe. However, the majority of scientists assume that it was caused by a cosmic event, such as the impact of a meteorite, asteroid or comet. If it had exploded in the atmosphere just under five hours later, St. Petersburg, which was the capital of Russia at that time, would have been completely destroyed because of the Earth's rotation.

hominin fossils are the most important materials for exploring human origins and evolution. Since most hominin fossils are incomplete, or filled with a heavy calcified matrix, it is difficult or often impossible to reconstruct the endocast in a real fossil without destroying it.

Accordingly, traditional methods limited the study of human brain evolution. CT can explore fossils in a noninvasive way by transforming a real fossil into a virtual object, and make it possible for paleoanthropologists to extend the study of fossil specimens from the exterior to the interior.

Just this once, anti-fishing organizations can fall back on capitalistic economics to make their case - with huge increases in fuel costs, it may be time to have government-run fisheries rather than spend more money on fuel subsidies currently given to fishing fleets.

In addition, it would actually save money to invest in re-training fishers, says University of British Columbia fisheries economist Rashid Sumaila, a 2008 Pew Fellow in Marine Conservation.

Dramatic fuel price increases over the past weeks have sparked large-scale protests by fishers around the world. In France, fishers set up blockades at several ports while Japanese squid fishing boats halted operations for two days. Similar events have taken place in Australia, Nigeria and the Philippines.

University of Florida and Florida Institute of Technology engineering researchers have narrowed the search for the source of X-rays emitted by lightning, a feat that could one day help predict where lightning will strike.

"From a practical point of view, if we are going to ever be able to predict when and where lightning will strike, we need to first understand how lightning moves from one place to the other," said Joseph Dwyer, a professor in the department of physics and space sciences at FIT. "At present, we do not have a good handle on this. X-rays are giving us a close-up view of what is happening inside the lightning as it moves."