Articles with the keyword: 
Take a Deep Breath--and Thank Mount Everest
sea-maid submitted, created time 5 months 3 days (sciencenow.sciencemag.org)
Next time you pause to view a scenic mountain vista, consider that the oxygen your lungs are taking in resulted from the same process that raised those peaks. Researchers have connected the periodic formation of supercontinents in Earth's geological past to the nourishment of tiny, oxygen-producing sea creatures, and the process continues to this day..... 
Reactive Oxygen Species Special Feature
sea-maid submitted, created time 6 months 2 weeks (www.pnas.org)
Dioxygen is a highly important, yet toxic, molecule that reacts in vivo to produce reactive oxygen species such as superoxide, peroxides, hydroxyl radicals, and other related species.
Fishing for Oxygen in Warming Oceans
sea-maid submitted, created time 8 months 4 days (www.sciam.com)
The oxygen concentrations in some oxygen-minimum zones have decreased with time and few fish and other sea life can survive in such waters. What's more, this state will deteriorate.
Global warming a threat to sea life
kavin submitted, created time 8 months 6 days (www.msnbc.msn.com)
Recently, a new study warns that low-oxygen zones where sea life is threatened or cannot survive are growing as the oceans are heated by global warming. Oxygen-depleted zones in the central and eastern equatorial Atlantic and equatorial Pacific oceans appear to have expanded over the last 50 years. Low-oxygen "dead zones" in the Gulf of Mexico and other areas also have been studied in recent years, raising concerns about the threat to sea life.
Mice Sniff Out Oxygen With Their Skin
lily0558 submitted, created time 8 months 2 weeks (www.cell.com)
In this paper, researchers have found that a mouse's skin can sense oxygen levels in the air and that it helps regulate the number of oxygen-carrying red blood cells in the body. It is potential that human skin may behave the same way, which could open the door for new ways to boost blood cell levels for athletes seeking to gain an edge or patients with anemia. But they don't yet know how the skin senses the gas.It maybe because of mouse skin containing the same oxygen-sensitive potassium channels as the lung. Humans also carry the HIF-1α gene
Mice Can Sense Oxygen Through Their Skin
siemens submitted, created time 8 months 2 weeks (www.medicinenet.com)
Mice can sense oxygen through their skin, says a new study that showed the skin plays a major role in sensing oxygen levels in the environment and in stimulating kidney production of the hormone erythropoietin (EPO) when oxygen levels decline.
New way to handle and dispose nuclear antisocialite
Sue Wu submitted, created time 11 months 3 weeks (sciencenow.sciencemag.org)
If chemicals were people, uranium dioxide would be the guy standing alone with his drink at a party. The world's most commonly used radioactive substance--and its heaviest natural element--clutches its two oxygen atoms so tightly, it almost never reacts with other compounds. Now researchers report finding a way to pry one oxygen atom loose, potentially opening up safer ways to handle and dispose of this nuclear antisocialite.
Marine mammals boost brain oxygen supply
jane2007 submitted, created time 1 year 2 weeks (www.nature.com)
Marine mammals have an uncanny ability to remain awake and alert while holding their breath during long dives. New research shows that this might be thanks to high concentrations of oxygen-binding proteins in the brain. The proteins, called globins, could help these mammals to remain active long after blood oxygen levels sink low enough to cause a human to black out.
Photosynthetic oxygen generator for bio-artificial pancreas
bloch submitted, created time 1 year 5 months (www.beta-o2.com)
This artickle discibed new original aparoach for oxygen supply to bio-artificial pancreas
Oxygen trick could see organic costs tumble
broadcast submitted, created time 1 year 6 months (www.eurekalert.org)
A simple, cheap treatment using just oxygen could allow growers to store organic produce for longer and go a long way towards reducing the price of organic fruit and vegetables, reports Lisa Richards in Chemistry & Industry, the magazine of the SCI.
Oxygen Meant to Resuscitate May Damage Brain
julie submitted, created time 1 year 7 months (www.sciam.com)
"A new study suggests that pumping pure oxygen into patients' noses and mouths during a stroke or other medical emergency may exacerbate rather than reduce potential brain damage.
Medical personnel routinely slap an oxygen mask on people struggling to breathe, as well as to stroke victims left oxygen-deficient in some parts of their brains. Until recently, doctors believed this is the fastest and most effective way to deliver oxygen to needy lung or brain tissue. "
Weight loss improves heart function in obese
catherine submitted, created time 1 year 11 months (www.sciam.com)
High-dose iron supplements do not impair zinc absorption in pregnant women, UK researchers report in the American Journal of Clinical Nutrition.
Iron supplements do not have an adverse effect on zinc nutrition provided the diet is adequate in zinc, Provided women are consuming a diet that contains sufficient zinc (in terms of both quantity and bioavailability), they can adapt to the increased physiological requirement for zinc and will not need zinc supplements
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