ScienceDaily: Top Science News |
- Orangutans harbor ancient primate Alu
- Pacific islands on equator may become refuge for corals in a warming climate due to changes in ocean currents
- Single nanomaterial yields many laser colors
| Orangutans harbor ancient primate Alu Posted: 29 Apr 2012 08:46 PM PDT Alu elements infiltrated the ancestral primate genome about 65 million years ago. Once gained an Alu element is rarely lost so comparison of Alu between species can be used to map primate evolution and diversity. New research has found a single Alu, which appears to be an ancestral great ape Alu, that has uniquely multiplied within the orangutan genome.  |
| Posted: 29 Apr 2012 12:22 PM PDT Scientists have predicted that ocean temperatures will rise in the equatorial Pacific by the end of the century, wreaking havoc on coral reef ecosystems. But a new study shows that climate change could cause ocean currents to operate in a surprising way and mitigate the warming near a handful of islands right on the equator. As a result these Pacific islands may become isolated refuges for corals and fish.  |
| Single nanomaterial yields many laser colors Posted: 29 Apr 2012 12:22 PM PDT Engineers have created nanoscale single crystals that can produce the red, green, or blue laser light needed in digital displays. The size determines color, but all the pyramid-shaped quantum dots are made the same way of the same elements. In experiments, light amplification required much less power than previous attempts at the technology. The team's prototypes are the first lasers of their kind.  |
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