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News | Archive (24 January 2010)
How 'random' lasers work
— 19:34 GMT | TechnologyWhen University of Utah scientists discovered a new kind of laser that was generated by an electrically conducting plastic or polymer, no one could explain how it worked and some doubted it was real. Now, a decade later, the Utah researchers have found these 'random lasers' occur because of natural, mirror-like cavities in the polymers, and they say such lasers may prove useful for diagnosing cancer…
Illuminating protein networks in one step
— 19:34 GMT | HealthA new assay capable of examining hundreds of proteins at once and enabling new experiments that could dramatically change our understanding of cancer and other diseases has been invented by a team of University of Chicago scientists…
Researchers trace effects of genetic defect in myotonic muscular dystrophy
— 19:34 GMT | HealthResearch on the genetic defect that causes myotonic muscular dystrophy has revealed that the mutation disrupts an array of metabolic pathways in muscle cells through its effects on two key proteins. A study published in Nature Structural and Molecular Biology shows that the loss of a single protein accounts for most of the molecular abnormalities associated with the disease, while loss of a second protein also seems to play an important role…
Researchers offer explanation for the differences between Ganymede and Callisto
— 19:34 GMT | AstronomyDifferences in the number and speed of cometary impacts onto Jupiter's large moons Ganymede and Callisto some 3.8 billion years ago can explain their vastly different surfaces and interior states, according to research by scientists at the Southwest Research Institute appearing online in Nature Geoscience Jan. 24, 2010…
Levitating magnet may yield new approach to clean energy
— 19:34 GMT | TechnologyA new experiment that reproduces the magnetic fields of the Earth and other planets has yielded its first significant results. The findings confirm that its unique approach has some potential to be developed as a new way of creating a power-producing plant based on nuclear fusion - the process that generates the sun's prodigious output of energy…
Genes found linked to breast cancer drug resistance could guide future treatment choices
— 19:34 GMT | HealthResearchers at Dana-Farber Cancer Institute have discovered a gene activity signature that predicts a high risk of cancer recurrence in certain breast tumours that have been treated with commonly used chemotherapy drugs…
Bat researchers no longer flying blind on echolocation
— 19:34 GMT | BiologyResearchers at The University of Western Ontario led an international and multi-disciplinary study that sheds new light on the way that bats echolocate. With echolocation, animals emit sounds and then listen to the reflected echoes of those sounds to form images of their surroundings in their brains…
US Southwest expected to dry further as climate warms
— 19:34 GMT | EnvironmentBased on a study of seasonal rainfall variations in the desert Southwest between 56,000 and 11,000 years ago as recorded in cave stalagmites, geoscientist Stephen Burns of the University of Massachusetts Amherst, with colleagues at the University of New Mexico, suggest the rapidly growing Southwest could become even more arid as global temperatures rise. Their findings are published in this week's Nature Geosciences and are corroborated by another study presented in the same issue…
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