News tagged with oxygen species
Scientists discover first multicellular life that doesn't need oxygen
(PhysOrg.com) -- Oxygen may not be the staple of modern complex life that scientists once thought. Until now, the only life forms known to live exclusively in anoxic conditions were viruses, bacteria and Archaea. ...
Apr 07, 2010 |
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Professor's hypothesis may be game changer for evolutionary theory
(PhysOrg.com) -- A new hypothesis posed by a University of Tennessee, Knoxville, associate professor and colleagues could be a game changer in the evolution arena. The hypothesis suggests some species are ...
Apr 04, 2012 |
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Egg-laying beginning of the end for dinosaurs
Their reproductive strategy spelled the beginning of the end: The fact that dinosaurs laid eggs put them at a considerable disadvantage compared to viviparous mammals. Together with colleagues from the Zoological ...
Other Sciences / Archaeology & Fossils
Apr 17, 2012 |
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New study overturns orthodoxy on how macrophages kill bacteria
For decades, microbiologists assumed that macrophages, immune cells that can engulf and poison bacteria and other pathogens, killed microbes by damaging their DNA. A new study from the University of Illinois ...
Apr 27, 2009 |
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Novel compound selectively kills cancer cells
A cancer cell may seem out of control, growing wildly and breaking all the rules of orderly cell life and death. But amid the seeming chaos there is a balance between a cancer cell's revved-up metabolism and skyrocketing ...
Jul 13, 2011 |
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Painless plasma jets could replace dentist's drill
Plasma jets capable of obliterating tooth decay-causing bacteria could be an effective and less painful alternative to the dentist's drill, according to a new study published in the February issue of the Journal of Medical Mi ...
Medicine & Health / Medical research
Jan 19, 2010 |
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Want to slow aging? New research suggests it takes more than antioxidants
Don't put down the red wine and vitamins just yet, but if you're taking antioxidants because you hope to live longer, consider this: a new study published in the June 2010 issue of the journal Genetics casts doubt on the ...
Medicine & Health / Medical research
Jul 06, 2010 |
4.7 / 5 (7) |
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New evidence found for the oldest oxygen-breathing life on land
New University of Alberta research shows the first evidence that oxygen-breathing bacteria occupied and thrived on land 100 million years earlier than previously thought.
Space & Earth / Earth Sciences
Oct 19, 2011 |
4.6 / 5 (7) |
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Thioketal nanoparticles: Researchers develop oral delivery system to treat inflammatory bowel diseases
(PhysOrg.com) -- Researchers at the Georgia Institute of Technology and Emory University have developed a novel approach for delivering small bits of genetic material into the body to improve the treatment ...
Nanotechnology / Bio & Medicine
Oct 10, 2010 |
5 / 5 (6) |
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Algae and bacteria hogged oxygen after ancient mass extinction, researchers say
(PhysOrg.com) -- After the biggest mass extinction in Earth's history -- 250 million years ago -- ocean algae and bacteria rebounded so fast that they consumed virtually all the oxygen in the sea, slowing ...
Space & Earth / Earth Sciences
Mar 25, 2011 |
4.8 / 5 (6) |
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Oasis near Death Valley fed by ancient aquifer under Nevada Test Site
Every minute, 10,000 gallons of water mysteriously gush out of the desert floor at a place called Ash Meadows, an oasis that is home to 24 plant and animal species found nowhere else in the world.
Space & Earth / Earth Sciences
Jun 03, 2010 |
4.7 / 5 (6) |
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Flavonoids in orange juice suppress oxidative stress from high-fat, high-carb meal
Eating foods containing flavonoids -- orange juice, in this case -- along with a high-fat, high-carbohydrate fast-food meal neutralizes the oxidative and inflammatory stress generated by the unhealthy food and helps prevent ...
Mar 30, 2010 |
4.2 / 5 (6) |
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Replacing hydrogen in fluorescent dyes improves detection ability, stability and shelf life
By swapping out one specific hydrogen atom for an isotope twice as heavy, researchers have increased the shelf life and detection ability of fluorescent probes that are essential to studying a variety of inflammatory ...
Jul 20, 2010 |
5 / 5 (4) |
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Researchers show new antioxidant could help treat cardiovascular disease
(PhysOrg.com) -- Researchers at the University of Glasgow believe they have found a potential new treatment for cardiovascular disease which reduces blood pressure.
Medicine & Health / Medical research
Jun 29, 2009 |
5 / 5 (3) |
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Warmer is better: Invasive cane toads set to thrive under global warming
As global warming threatens many animal species with extinction, the cane toad is set to flourish with increasing temperature. This is a major cause for concern as the cane toad, once introduced to Australia as agricultural ...
Jul 01, 2010 |
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