ScienceDaily: Top Science News |
- Making oxygen before life: Oxygen can form directly from carbon dioxide in upper atmosphere
- Batteries included: A solar cell that stores its own power
- Second case of apparent HIV 'cure' in baby followed by reappearance of virus
- Boosting biofuel: Yeast made to tolerate high levels of ethanol, making them more productive
- Previously unseen details of seafloor exposed in new map
- HIV pandemic's origins located
- Elusive particle that is its own antiparticle observed
- Study of mountain lion energetics shows the power of the pounce
- Insect diversification: Metamorphosing insects biggest contributors to insect evolution
- At dusk and dawn: Scientists pinpoint biological clock's synchronicity
| Making oxygen before life: Oxygen can form directly from carbon dioxide in upper atmosphere Posted: 03 Oct 2014 06:22 AM PDT About one-fifth of the Earth's atmosphere is oxygen, pumped out by green plants as a result of photosynthesis and used by most living things on the planet to keep our metabolisms running. Scientists have now shown that oxygen can be formed directly from carbon dioxide in the upper atmosphere, changing models of how the atmosphere evolved early in Earth's history.       |
| Batteries included: A solar cell that stores its own power Posted: 03 Oct 2014 03:43 AM PDT Is it a solar cell? Or a rechargeable battery? Actually, the patent-pending device is both: the world's first solar battery. Scientists have succeeding in combining a battery and a solar cell into one hybrid device.  |
| Second case of apparent HIV 'cure' in baby followed by reappearance of virus Posted: 02 Oct 2014 07:11 PM PDT A new case report is the second report of apparent viral remission followed by rebound in a baby given early ART treatment, after the case of the 'Mississippi baby' received widespread attention in the last year.  |
| Boosting biofuel: Yeast made to tolerate high levels of ethanol, making them more productive Posted: 02 Oct 2014 11:18 AM PDT Yeast are commonly used to transform corn and other plant materials into biofuels such as ethanol. However, large concentrations of ethanol can be toxic to yeast, which has limited the production capacity of many yeast strains used in industry.  |
| Previously unseen details of seafloor exposed in new map Posted: 02 Oct 2014 11:18 AM PDT A new map of the world's seafloor has been created. Twice as accurate as the previous version, the new map features a much more vivid picture of seafloor structures, including thousands of previously uncharted mountains.  |
| HIV pandemic's origins located Posted: 02 Oct 2014 11:17 AM PDT The present HIV pandemic almost certainly originated in Kinshasa, the capital of the Democratic Republic of the Congo, according to a new study. An international team of scientists reconstructed the genetic history of the HIV-1 group M pandemic, which saw HIV spread across Africa and around the world. Their analysis suggests that the common ancestor of group M is likely to have emerged in Kinshasa around 1920.  |
| Elusive particle that is its own antiparticle observed Posted: 02 Oct 2014 11:17 AM PDT Scientists have observed an exotic particle that behaves simultaneously like matter and antimatter, a feat of math and engineering that could yield powerful computers based on quantum mechanics.  |
| Study of mountain lion energetics shows the power of the pounce Posted: 02 Oct 2014 11:17 AM PDT High-tech collars enabled scientists to record the energetics of mountain lion hunting behavior, showing why cats use "stalk and pounce" and how they overpower large prey.  |
| Insect diversification: Metamorphosing insects biggest contributors to insect evolution Posted: 02 Oct 2014 11:17 AM PDT Two new datasets on insect evolution have compiled by biologists, revealing that metamorphosing insects diversify more quickly than other insects and are therefore the biggest contributors to the evolution of insect diversity.  |
| At dusk and dawn: Scientists pinpoint biological clock's synchronicity Posted: 30 Sep 2014 11:34 AM PDT Scientists have uncovered how pacemaker neurons are synchronized at dusk and dawn in order to maintain the proper functioning of their biological clocks. Their findings enhance our understanding of how sleep-wake cycles are regulated and offer promise for addressing related afflictions.  |
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