In the News
Food For Thought: Delivering The Promise Of Food Processing
Humans have transformed raw ingredients into food since prehistoric times. But scientists are still looking for new ways to make food taste better and survive longer. The industrial revolution brought the advent of modern food processing technology. The invention of the tin can has revolutionized the way people eat. The motivation behind its invention was simple -- make food last long. Two hundred years on, food scientists are still trying to improve the shelf life of food. In Fruit Flies, Homosexuality Is Biological But Not Hard-wired, Study
Neurobiologists have discovered that homosexuality in fruit flies is controlled by a novel regulator of synapse strength. By harnessing this discovery, the researchers are able to use either genetics or drugs to turn fly homosexual behavior on and off within hours. Scientists Study And Learn To Prevent Nanoparticle 'Merging'
Researchers at the US Department of Energy's Brookhaven National Laboratory have identified how billionth-of-a-meter sized metal particles -- gold-atom clusters within carbon-atom shells -- can mesh together to form larger particles and have also found a way to control this process. The results, published in the September 27, 2005, online edition of Nano Letters, may help scientists determine how these "nanoparticles,"which have unique physical, chemical, and electronic properties, could be incorporated into new technologies. Queen Bees Shown To Pass Viruses To Their Offspring
The first evidence that viruses can be transmitted vertically from mother queens to their offspring in honey bee colonies has been discovered by Agricultural Research Service (ARS) scientists. ARS entomologists Yanping Chen, Jeff Pettis, Jay Evans, Anita Collins and Mark Feldlaufer in Beltsville, Md., made the discovery by testing individual queen bees and their offspring for deformed wing virus, sacbrood virus and black queen cell virus. The Oil Sands Environmental Research Network (OSERN): Frequently Asked
Questions and answers about obtaining petroleum from the "naturally occurring deposits of bituminous sand"(known as oil sand or tar sand) found near the Athabasca River in Canada. Includes information about mining, the kinds of environmental disturbance oil sands mining causes, and reclamation. Also includes maps and a link to a glossary of oil sands acronyms. From the University of Alberta. 'Out Of Africa' Theory Boost: Skull Dating Suggests Modern Humans Evol
Reliably dated fossils are critical to understanding the course of human evolution. A human skull discovered over fifty years ago near the town of Hofmeyr, in the Eastern Cape Province of South Africa, is one such fossil. A study by an international team of scientists led by Frederick Grine of the Departments of Anthropology and Anatomical Sciences at Stony Brook University in New York published today in Science magazine has dated the skull to 36,000 years ago. This skull provides critical corroboration of genetic evidence indicating that modern humans originated in sub-Saharan Africa and migrated about this time to colonize the Old World. Stem Cells Train Heart Following Heart Attack
Injecting adult stem cells into a heart following a heart attack (infarction) improves the heart function and strengthens the heart wall. The use of such cells may eventually reduce the chance of heart failure following a heart attack. [Ironic] LONDON: A jailed cocaine dealer is working as Santa Claus on
John Tams, who dons beard, boots and red suit to work in a cafe's Christmas grotto, said he wanted to give something back to the community... Spread Of Plant Diseases By Insects Can Be Described By Equations That
Researchers from Penn State University and the University of Virginia show that the spread of diseases by insects can be described by equations similar to those that describe the force of gravity between planetary objects. Their findings are detailed in the September issue of the American Naturalist. Climatic Chain Reaction Caused Runaway Greenhouse Effect 55 Million Ye
Analogous to the Earth's current situation, greenhouse warming 55 million years ago was caused by a relatively rapid increase of carbon dioxide concentrations in the atmosphere. The study shows that a large proportion of the greenhouse gases was released as a result of a chain-reaction of events.
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