News tagged with hydrogen sulfide

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A new wrinkle in ancient ocean chemistry

Ancient ocean chemistry: Effects of biological oxygen production 100 million years before it accumulated in atmosphere

Space & Earth / Earth Sciences

created Oct 29, 2009 | popularity 4.8 / 5 (13) | comments 4

(PhysOrg.com) -- Scientists widely accept that around 2.4 billion years ago, the Earth's atmosphere underwent a dramatic change when oxygen levels rose sharply. Called the "Great Oxidation Event" (GOE), the ...


Horse dies, France faces reality of toxic beaches (AP)

Horse dies, France faces reality of toxic beaches

Space & Earth / Environment

created Aug 29, 2009 | popularity 5 / 5 (8) | comments 6

(AP) -- It should have been a perfect day for Vincent Petit, finishing up an afternoon gallop on a wide expanse of beach along a pastel-colored bay. Instead, he and his mount were sucked into a hole of noxious ...


Freshly crushed garlic better for the heart than processed

Freshly crushed garlic better for the heart than processed

Chemistry / Biochemistry

created Jul 29, 2009 | popularity 4 / 5 (3) | comments 0

A new study reports what scientists term the first scientific evidence that freshly crushed garlic has more potent heart-healthy effects than dried garlic. Scheduled for the Aug. 12 issue of the Journal of ...


Anti-inflammatory effect of 'rotten eggs' gas

Biology / Cell & Microbiology

created May 21, 2009 | popularity 5 / 5 (5) | comments 0

Researchers from the Peninsula Medical School in Exeter have synthesized a new molecule which releases hydrogen sulfide (H2S) - the gas that gives rotten eggs their characteristic smell and which has recently been found to b ...


Less of a stink in diabetes patients?

Medicine & Health / Diseases

created Mar 16, 2009 | popularity 4 / 5 (3) | comments 0

Hydrogen sulfide (H2S) is commonly associated with smell of rotten eggs, stink bombs and blocked drains but lower blood levels of the gas are possibly linked to cardiovascular complications in some male patients with type ...


Treating heart failure with a gas

Medicine & Health / Diseases

created Nov 11, 2008 | popularity 4.7 / 5 (3) | comments 0

At low concentrations, the toxic gas hydrogen sulfide protects the hearts of mice from heart failure, scientists at Emory University School of Medicine have found.


If your systolic stinks, 'rotten egg' gas may be why

Medicine & Health / Research

created Oct 23, 2008 | popularity 4.3 / 5 (21) | comments 0

Anyone with a nose knows the rotten-egg odor of hydrogen sulfide, a gas generated by bacteria living in the human colon. Now an international team of scientists has discovered that cells inside the blood vessels of mice ...


New process extracts pure hydrogen from contaminant in unrefined oil

Technology / Energy

created Aug 25, 2008 | popularity 4.8 / 5 (19) | comments 0

A commercial-scale process to extract and reuse pure hydrogen from the hydrogen sulfide that naturally contaminates unrefined oil, including oil sands, is one step closer to reality thanks to a collaboration between the U.S. ...