New findings by a Queen's University research team dispel the popular notion that eating so-called "natural" foods will protect against cancer.

In fact, certain types of common foods and alcoholic beverages such as wine, cheese, yogurt and bread contain trace amounts of carcinogens. Maintaining a balanced diet from a variety of sources – including garlic – is a better choice, the researchers suggest.

Led by Dr. Poh-Gek Forkert of Queen's Department of Anatomy and Cell Biology, the team has discovered that a naturally-occurring carcinogen found in alcoholic beverages and fermented foods causes DNA modification and mutations, ultimately leading to abnormal cell growth and lung cancer. Her research also shows that a component of garlic significantly reduces these changes.

A team of European astronomers offer new evidence that high-mass stars could form in a similar way to low-mass stars, that is, from accretion of gas and dust through a disk surrounding the forming star. Their article, published in Astronomy & Astrophysics, reports the discovery of a jet of molecular hydrogen arising from a forming high-mass star located in the Omega nebula (M17). This detection confirms the hypothesis based on their earlier discovery that this forming high-mass star is surrounded by a large accretion disk.

A new report, the first to take a comprehensive look at market competition between wild and farmed salmon, sheds new light on the contentious and complex issues surrounding farmed and wild salmon.

The Great Salmon Run: Competition Between Wild and Farmed Salmon, released by TRAFFIC, the wildlife trade monitoring network of World Wildlife Fund and IUCN-the World Conservation Union identifies two important trends that have remade the salmon industry in the last 25 years: farmed salmon has grown from just two percent of the world supply in 1980 to 65 percent in 2004. About three-fourths of the fresh and frozen salmon consumed in the United States is now farmed.

Humans acquired pubic lice from gorillas several million years ago, but this seemingly seedy connection does not mean that monkey business went on with the great apes, a new University of Florida study finds.

Rather than close encounters of the intimate kind, humans most likely got the gorilla's lice from sleeping in their nests or eating the giant apes, said David Reed, assistant curator of mammals at the Florida Museum of Natural History on the UF campus, one of the study's authors. The research is published in the current edition of the BMC Biology journal.

"It certainly wouldn't have to be what many people are going to immediately assume it might have been, and that is sexual intercourse occurring between humans and gorillas," he said.

Biofuels have been an increasingly hot topic on the discussion table in the last few years. In 2003 the European Union introduced a Directive suggesting that Member states should increase the share of biofuels in the energy used for transport to 2% by 2005 and 5.75% by 2010. In 2005 the target was not reached and it will probably not be reached in 2010 either (we are in 2006 at approximately 0.8%), but anyway the Directive showed the great interest that the European Commission places on biofuels as a way to solve many problems at once. The new European energy strategy, presented on 10th January 2007, establishes that biofuels should represent at least 10% of the energy used for transport.

The buildup of greenhouse gases in Earth’s atmosphere and oceans continues to provoke changes in the natural environment that scientists have been working to measure for decades. Global increases in temperature are just one facet of a much larger issue that scientists at the Rosenstiel School of Marine and Atmospheric Science are dedicated to uncovering. "The Marine Inorganic Carbon Cycle," a paper recently published in the journal Chemical Reviews, attempts to quantify over 60 years of research, reviewing a vast array of science that brings into question the Earth’s natural ability to rebound from the increase in inorganic carbon dioxide in the atmosphere and oceans.

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