News tagged with oxygen ions
A star explodes, turns inside-out
(PhysOrg.com) -- A new X-ray study of the remains of an exploded star indicates that the supernova that disrupted the massive star may have turned it inside out in the process. Using very long observations ...
Mar 29, 2012 |
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Forget the antioxidants? Researchers cast doubt on role of free radicals in aging
For more than 40 years, the prevailing explanation of why we get old has been tied to what is called oxidative stress. This theory postulates that when molecules like free radicals, oxygen ions and peroxides build up in cells, ...
Biology /
Feb 17, 2009 |
4.5 / 5 (10) |
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Oldest objects in solar system indicate a turbulent beginning
(PhysOrg.com) -- Scientists have found that calcium, aluminum-rich inclusions (CAIs), some of the oldest objects in the solar system, formed far away from our sun and then later fell back into the mid-plane ...
Mar 03, 2011 |
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Ion exchange may be most important driver of gill development in fish
(PhysOrg.com) -- A long-standing theory is that the first function of fish gills was to allow fish to breathe, but new research is casting doubt on the idea that this activity developed first.
Jan 18, 2010 |
4.3 / 5 (3) |
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Hybrid molecules show promise for exploring, treating Alzheimer's
One of the many mysteries of Alzheimer's disease is how protein-like snippets called amyloid-beta peptides, which clump together to form plaques in the brain, may cause cell death, leading to the disease's devastating symptoms ...
Nov 04, 2009 |
5 / 5 (2) |
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How oxidative stress may help prolong life
(PhysOrg.com) -- Oxidative stress has been linked to aging, cancer and other diseases in humans. Paradoxically, researchers have suggested that small exposure to oxidative conditions may actually offer protection ...
May 29, 2009 |
3.5 / 5 (2) |
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Iodate refuses to intimidate
Like a bull in a china shop, a massive, iodine-based ion called iodate should disrupt the surrounding water molecules until it is forcibly expelled. However, it doesn't. This disconnect between the molecule's ...
Nov 08, 2011 |
5 / 5 (1) |
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Energy-efficient plastic production
Davide Crapanzano of the University of Twente (The Netherlands) has demonstrated the conditions under which a new catalytic membrane can be used for the cheaper, faster and more energy-efficient production of raw materials ...
Jun 01, 2010 |
4 / 5 (1) |
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