News tagged with natural environments
Scientists find universal rules for food-web stability
Aug 06, 2009 |
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The findings, published in this week's issue of Science, conclude that food-web stability is enhanced when many diverse predator-prey links connect high and intermediate trophic levels. The computations also reveal that s ...
Common soil mineral degrades the nearly indestructible prion
Biology /
Jan 14, 2009 |
5 / 5 (4) |
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(PhysOrg.com) -- In the rogues' gallery of microscopic infectious agents, the prion is the toughest hombre in town.
Researcher uncovers koalas' creature comforts
Mar 10, 2009 |
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University of Queensland Master of Science student Maren Dammann is aiming to uncover what makes a koala's wish list when it comes to choosing a place to live.
Neither Rain Nor Sleet Will Stop NASA's Ares Rockets
Space & Earth / Space Exploration
Jul 03, 2008 |
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Barry Roberts wants to help build a better rocket…one that can fly despite record low temperatures, one that hail and rain can’t stop.
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Limestone leaf warbler: New bird species discovered
Dec 21, 2009 |
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(PhysOrg.com) -- A diminutive, colorful bird living in the rocky forests of Laos and Vietnam has been discovered by a team of scientists from the Wildlife Conservation Society, Lao PDR Department of Forestry, Swedish University ...
Study finds orphanages are viable options for some children
Other Sciences / Social Sciences
Dec 18, 2009 |
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A Duke University study of more than 3,000 orphaned and abandoned children in five Asian and African countries has found that children in institutional orphanages fare as well or better than those who live in the community.
Watching Proteins Direct Crystal Growth One Step at a Time (w/ Video)
Dec 16, 2009 |
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(PhysOrg.com) -- Scientists at Berkeley Lab's Molecular Foundry imaged the growth of protein-studded mineral surfaces with unprecedented resolution and provided a glimpse into how living systems engineer key ...
The importance of attractiveness depends on where you live
Medicine & Health / Psychology & Psychiatry
Dec 15, 2009 |
4.2 / 5 (6) |
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Do good-looking people really benefit from their looks, and in what ways? A team of researchers from the University of Georgia and the University of Kansas found that yes; attractive people do tend to have more social relationships ...
'Extreme' genes shed light on origins of photosynthesis
Dec 11, 2009 |
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(PhysOrg.com) -- While most school children understand that green plants photosynthesize, absorb carbon dioxide and produce oxygen, few people consider the profound global-scale effects that photosynthesis has had on Earth. ...
Metamaterials could reduce friction in nanomachines
Nanotechnology / Nanomaterials
Dec 07, 2009 |
5 / 5 (4) |
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(PhysOrg.com) -- Nanoscale machines expected to have wide application in industry, energy, medicine and other fields may someday operate far more efficiently thanks to important theoretical discoveries concerning the manipulation ...
Greenhouse gas carbon dioxide ramps up aspen growth
Dec 04, 2009 |
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The rising level of atmospheric carbon dioxide may be fueling more than climate change. It could also be making some trees grow like crazy.
Why females live longer than males: is it due to the father's sperm?
Dec 01, 2009 |
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Researchers in Japan have found that female mice produced by using genetic material from two mothers but no father live significantly longer than mice with the normal mix of maternal and paternal genes. Their findings provide ...
TacSat-4 spacecraft complete and awaiting launch
Space & Earth / Space Exploration
Dec 01, 2009 |
1 / 5 (1) |
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Naval Research Laboratory (NRL) engineers have completed all environmental and performance testing on the TacSat-4 COMMx payload. This completes the entire TacSat-4 spacecraft as the spacecraft bus was completed ...
Researchers discover biological basis of 'bacterial immune system'
Nov 30, 2009 |
4.8 / 5 (4) |
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(PhysOrg.com) -- Bacteria don’t have easy lives. In addition to mammalian immune systems that besiege the bugs, they have natural enemies called bacteriophages, viruses that kill half the bacteria on Earth every two days.
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