http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Scientists expressed alarm on Monday over the rapid acidification of the Arctic Ocean caused by carbon dioxide emissions, which could have dire consequences on the region's fragile ecosystem. http://phys.org/news287050530.html Space & Earth Mon, 06 May 2013 09:30:01 EST news287050530 (Phys.org) —Marine scientists have long understood the detrimental effect of fossil fuel emissions on marine ecosystems. But a group led by a UC Santa Barbara professor has found a point of resilience in a microscopic shelled plant with a massive environmental impact, which suggests the future of ocean life may not be so bleak. http://phys.org/news285233209.html Space & Earth Mon, 15 Apr 2013 08:26:56 EST news285233209 Food-borne diseases might soon have another warrior to contend with, thanks to a new molecule discovered by chemists at the University of Illinois. The new antibiotic, an analog of the widely used food preservative nisin, also has potential to be a boon to the dairy industry as a treatment for bovine mastitis. http://phys.org/news251382754.html Chemistry Mon, 19 Mar 2012 15:00:06 EST news251382754 (PhysOrg.com) -- Tropical sea cucumbers could play a key role in saving coral reefs from the devastating effects of climate change, say scientists at One Tree Island, the University of Sydney's research station on the Great Barrier Reef. http://phys.org/news247220625.html Space & Earth Tue, 31 Jan 2012 08:50:04 EST news247220625 Scientists at Queen's University Belfast have made a major breakthrough in developing sensors which dramatically improve the ability to spot early warning signs of corrosion in concrete. http://phys.org/news246709941.html Technology Wed, 25 Jan 2012 10:32:30 EST news246709941 (PhysOrg.com) -- Recently, researchers have been designing a wide variety of self-propelled micromotors, many of which operate using an oxygen-bubble propulsion mechanism that requires a high concentration of hydrogen peroxide fuel. Since hydrogen peroxide is hazardous at high concentrations, this requirement has hindered practical applications, especially biomedical uses. Now in a new study, scientists have designed and built a new type of micromotor that propels itself through acidic environments with hydrogen bubbles, and requires no additional fuels. At extremely low pH levels, the micromotors can travel at speeds of up to 100 body lengths per second, prompting the scientists to call them “microrockets.” http://phys.org/news246090119.html Chemistry Wed, 18 Jan 2012 08:30:01 EST news246090119 In a year when cantaloupe tainted with the bacterium Listeria monocytogenes killed 30 people, the discovery of a compound that controls this deadly bacteria -- and possibly others -- is great news. http://phys.org/news244877802.html Biology Wed, 04 Jan 2012 05:36:59 EST news244877802 Earth may be overdosing on acid - not the "turn on, tune in, drop out" kind, but the "kill fish, kill coral, kill crops" kind. And it's shaping up to be a very bad trip. http://phys.org/news236865130.html Space & Earth Mon, 03 Oct 2011 13:30:01 EST news236865130 (PhysOrg.com) -- Though not very well known in the United States, at least until the past few years, the miracle fruit is a cranberry like fruit that has the unique property of being able to make acidic or bitter foods taste sweet. And while the protein that makes this possible has been known for quite a while, just how exactly it did its trick has been a mystery; until now. A team of Japanese and French researchers working together have solved the puzzle and have published the results of their efforts in the Proceedings of the National Academy of Sciences. http://phys.org/news236330034.html Biology Tue, 27 Sep 2011 08:14:12 EST news236330034 For the first time, Tufts University biologists have reported that bioelectrical signals are necessary for normal head and facial formation in an organism and have captured that process in a time-lapse video that reveals never-before-seen patterns of visible bioelectrical signals outlining where eyes, nose, mouth, and other features will appear in an embryonic tadpole. http://phys.org/news230207865.html Biology Mon, 18 Jul 2011 11:38:29 EST news230207865 (PhysOrg.com) -- Last October, a containment dam belonging to a Hungarian alumina manufacturer collapsed after heavy rains, releasing 200 million gallons of caustic sludge. Eight people died in the flood of lye-like red mud, which overwhelmed nearby towns and created an environmental catastrophe. http://phys.org/news229609988.html Chemistry Mon, 11 Jul 2011 13:33:23 EST news229609988 Some areas of the southern United States are suffering from the longest dry spell since 1887 and a new Baylor University study shows that could prove problematic for aquatic organisms. http://phys.org/news228491937.html Space & Earth Tue, 28 Jun 2011 14:59:07 EST news228491937 (PhysOrg.com) -- Once eggs are laid, their natural resistance to pathogens begins to wear down, but a Purdue University scientist believes he knows how to rearm those defenses. http://phys.org/news227870856.html Biology Tue, 21 Jun 2011 10:41:52 EST news227870856 A new study reveals that a group of ancient enzymes adapted to substantial changes in ocean temperature and acidity during the last four billion years, providing evidence that life on Early Earth evolved from a much hotter, more acidic environment to the cooler, less acidic global environment that exists today. http://phys.org/news221152583.html Chemistry Mon, 04 Apr 2011 16:16:43 EST news221152583 Scientists have been startled to discover unique ecosystems of fauna and flora thriving around highly acidic springs in far north Queensland. http://phys.org/news212245038.html Space & Earth Wed, 22 Dec 2010 12:57:44 EST news212245038 An electronic diagnostic tool called the SmartPill is swallowed by patients in order to take measurements as it travels through the gastrointestinal tract. A new study by physician-scientists at NewYork-Presbyterian/Weill Cornell Medical Center used the device in patients with mild to moderate ulcerative colitis (UC), determining that they have significantly more acidic pH in their colons, compared with the average person -- a finding that may impact treatment strategy. http://phys.org/news163259753.html Medicine & Health Wed, 03 Jun 2009 14:56:21 EST news163259753