http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (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 oxygen spike marks an important milestone in Earth's history, the transformation from an oxygen-poor atmosphere to an oxygen-rich one paving the way for complex life to develop on the planet. http://www.physorg.com/news176044643.html Space & Earth Thu, 29 Oct 2009 14:17:58 EST news176044643 (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 black sludge. http://www.physorg.com/news170743350.html Space & Earth Sat, 29 Aug 2009 05:43:25 EST news170743350 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 Agricultural and Food Chemistry, it also challenges the widespread belief that most of garlic's benefits are due to its rich array of antioxidants. Instead, garlic's heart-healthy effects seem to result mainly from hydrogen sulfide, a chemical signaling substance that forms after garlic is cut or crushed and relaxes blood vessels when eaten. http://www.physorg.com/news168086006.html Chemistry Wed, 29 Jul 2009 11:39:25 EST news168086006 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 be produced naturally in the body - and discovered that it could in time lead to a range of new, safer and effective anti-inflammatory drugs for human use. http://www.physorg.com/news162106769.html Biology Thu, 21 May 2009 06:40:14 EST news162106769 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 II diabetes, according to research recently presented by researchers at the Peninsula Medical School in the South West of England at the Annual Diabetes UK Professional Conference in Glasgow this week and published in Diabetic Medicine. http://www.physorg.com/news156451086.html Medicine & Health Mon, 16 Mar 2009 19:40:11 EST news156451086 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. http://www.physorg.com/news145623357.html Medicine & Health Tue, 11 Nov 2008 10:55:57 EST news145623357 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 - as well as in people, no doubt - naturally make the gassy stuff, and that it controls blood pressure. http://www.physorg.com/news143987809.html Medicine & Health Thu, 23 Oct 2008 13:36:49 EST news143987809 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. Department of Energy's Argonne National Laboratory and Kingston Process Metallurgy Inc. (KPM) of Kingston, Ontario. http://www.physorg.com/news138895375.html Technology Mon, 25 Aug 2008 15:02:55 EST news138895375