ScienceDaily: Latest Science News |
- Biologists use flies and mice to get to the heart of Down syndrome
- Hubble directly observes the disc around a black hole
- Nanotubes in environment 'rob' green algae of space and light
| Biologists use flies and mice to get to the heart of Down syndrome Posted: 04 Nov 2011 06:17 AM PDT A novel study involving fruit flies and mice has allowed biologists to identify two critical genes responsible for congenital heart defects in individuals with Down syndrome, a major cause of infant mortality and death in people born with this genetic disorder.  |
| Hubble directly observes the disc around a black hole Posted: 04 Nov 2011 06:16 AM PDT Scientists have observed a quasar accretion disc -- a glowing disc of matter that is slowly being sucked into its galaxy's central black hole. Their study makes use of a novel technique that uses gravitational lensing to give an immense boost to the power of the telescope. The precision of the method has allowed astronomers to directly measure the disc's size and temperature across different parts of the disc.  |
| Nanotubes in environment 'rob' green algae of space and light Posted: 04 Nov 2011 06:07 AM PDT Nanoparticles such as carbon nanotubes, which are found in an ever-increasing number of products, are ending up more and more frequently in our surroundings. If and how they affect aquatic ecosystems are questions which are still unanswered. An new study shows that while carbon nanotubes do not have toxic effects on green algae they do inhibit its growth by depriving the plant of light and space.  |
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