Isotopes of oxygen
hideThere are three stable isotopes of oxygen that lead to oxygen (O) having a standard atomic mass of 15.9994(3) u. Also 10 unstable isotopes have been characterized.
For more information about Isotopes of oxygen, read the full article at
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News tagged with oxygen isotopes
Carbon and oxygen in tree rings can reveal past climate information
Space & Earth / Earth Sciences
Dec 03, 2009 |
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The analysis of carbon and oxygen isotopes embedded in tree rings may shed new light on past climate events in the Mackenzie Delta region of northern Canada.
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Big freeze plunged Europe into ice age in months
Space & Earth / Earth Sciences
Nov 30, 2009 |
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In the film, 'The Day After Tomorrow' the world enters the icy grip of a new glacial period within the space of just a few weeks. Now new research shows that this scenario may not be so far from the truth after all.
CPR is successful without mouth-to-mouth, but not without oxygen
Nov 30, 2009 |
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People can survive cardiac arrest if they receive only chest compressions during attempts to revive them - as advised by the current American Heart Association guidelines. But they cannot survive without access to oxygen ...
Naked mole rats may hold clues to surviving stroke
Nov 30, 2009 |
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Blind, nearly hairless, and looking something like toothy, plump, pink fingers, naked mole rats may rank among nature's most maligned creatures, but their unusual physiology endears them to scientists.
Cooling may benefit children after cardiac arrest
Dec 03, 2009 |
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When the heart is stopped and restarted, the patient's life may be saved but their brain is often permanently damaged. Therapeutic hypothermia, a treatment in which the patient's body temperature is lowered and maintained ...
Bone Marrow Stem Cells May Prevent Chronic Lung Disease
Dec 01, 2009 |
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(PhysOrg.com) -- Researchers at Children's Hospital Boston have discovered a possible way to protect the fragile lungs of premature babies by using stem cells harvested from bone marrow. In experiments on laboratory mice, ...
Study suggests adult stem cells may help repair hearts damaged by heart attack
Dec 02, 2009 |
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Adult stem cells may help repair heart tissue damaged by heart attack according to the findings of a new study to be published in the December 8 issue of the Journal of the American College of Cardiology. Results from t ...
High urea levels in chronic kidney failure might be toxic after all
Dec 02, 2009 |
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It is thought that the elevated levels of urea (the byproduct of protein breakdown that is excreted in the urine) in patients with end-stage kidney failure are not particularly toxic.
Researchers Identify Key Molecules in Photosynthesis
Dec 02, 2009 |
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(PhysOrg.com) -- Chemistry professor Harry Frank led an international group of researchers that identified the molecules in algae which direct the organisms to convert sunlight into oxygen. The findings may ...
Hydrogen-Powered Ion Tiger Sets 26-hour Flight Endurance Record
Nov 30, 2009 |
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The Naval Research Laboratory's Ion Tiger, a hydrogen-powered fuel cell unmanned air vehicle (UAV), has flown 26 hours and 1 minute carrying a 5-pound payload, setting another unofficial flight endurance record ...
Bacterial gut symbionts are tightly linked with the evolution of herbivory in ants
Dec 01, 2009 |
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Broadly speaking, ants have two different feeding strategies. A large proportion of all species are "carnivorous," meaning that they are generalist predators feeding on other small animals or scavenging on ...
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