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An anonymous reader writes with an excerpt from the Victoria Times Colonist: "After a remarkable 37-year experiment, University of Alberta scientist David Schindler and his colleagues have finally nailed down the chemical triggers for a problem that plagues thousands of freshwater and coastal ecosystems around the world." Punchline: "Phosphorus."

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Roland Piquepaille writes "You all know that incandescent bulbs are pretty inefficient, converting only 10% of electricity into light — and 90% into heat. Light-emitting diodes, or LEDs, could soon replace incandescent and compact fluorescent bulbs in our homes. They are more efficient and environmentally friendly. But LED lights are currently too expensive because they are using a sapphire-based technology. Now, Purdue University researchers have found a way to build low-cost and bright LEDs for home lighting. According to the researchers, the LED lights now on the market cost about $100 while LED lights based on their new technology could be commercially available within a couple of years for a cost of about $5. It would also help to cut our electricity bill by about 10%."

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chareverie writes "Researchers at Harvard University have been working towards a goal of replacing some types of heart surgery with injections of cells that would grow into blood vessels for damaged hearts. The cells that would be used are progenitor cells obtained from the blood or bone marrow, as opposed to stem cells that are obtained from human embryos. The research team was successful with their tests on growing heart blood vessels in mice. Joyce Bishoff, an associate professor of medicine at Harvard and senior author of the report, says, 'Our next goal down the line is to use them in humans.' She also notes that more studies need to be done on animals to see how these cells would react and behave with other types of tissues. A similar human experiment was done two years ago in Germany, during which a few people from a group of 75 heart attack victims were given injections of progenitor cells from their own bone marrow or blood. The report concluded that there were improved heart functions." Reader w1z4rd points out related coverage with some more information at BBC News.

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Geoffrey.landis writes "A Purdue University panel investigated allegations against nuclear engineering professor Rusi Taleyarkhan, finding that he had in fact committed scientific misconduct in his work. Taleyarkhan had published papers in which he reported seeing evidence of nuclear fusion in the collapse of tiny bubbles in a liquid subjected to ultrasonic excitation — a finding that would be groundbreaking, if true, but one that apparently could not be replicated by other researchers. The allegations against Taleyarkhan were made in March of 2006. A local Indiana paper gives the full list of allegations against Taleyarkhan, and the resolution of each by the panel. The full report (PDF) is also available. Of the nine specific allegations, only two were found to comprise scientific misconduct. The committee 'could not find any other instances of scientists being able to replicate Taleyarkhan's results without Taleyarkhan having direct involvement with the experiments,' but notes that this comes 'just short of questioning whether Taleyarkhan's results were fraudulent.'" We've discussed this gentleman's work and the scrutiny it has received several times, and members of the scientific community seem to have given him the benefit of the doubt in many cases.

schliz writes to mention that a team of quantum physicists have demonstrated how to significantly reduce the effects of "stiction," or the tendency for two very small, very close objects to stick together as a result of Casimir force. "'The Casimir force might be one of the many reasons that very small, movable components in micromechanical devices sometimes stick together,' said Ho Bun Chan, a assistant professor of physics at the University of Florida who is researching the Casimir force. 'The Casimir effect increases rapidly as the separation between components decreases. It becomes significant when the separation is reduced to below about 400 nm,' he told iTnews."

An anonymous reader writes "Bruce Schneier and colleagues from the University of Washington have figured out a way to break the deniability of TrueCrypt 5.1a's hidden files. What about the spanking-new TrueCrypt 6? Schneier says that 'The new version will definitely close some of the leakages, but it's unlikely that it closed all of them.' Meanwhile, PC World is reporting that the problems Schneier and colleagues found are bigger than just TrueCrypt. Among their discoveries: Word auto-saves the contents of encrypted files to the unencrypted portions of your disk, and this problem should apply to all non-full disk encryption software. Their research paper will appear at Usenix HotSec '08."

coondoggie writes "Solar race cars this week began their nine-day, 2,400 mile chase from Dallas to Calgary, Alberta using only the sun for fuel. The 24 teams in the American Solar Challenge race are mainly US college teams including entries from MIT, Ohio State and Northwestern. The University of Michigan's Continuum car is the defending champ, having won the Challenge in Australia last year. The University of Michigan has won four out of the eight North American Solar Challenges it has entered with its team of more than 100 engineering students, who have vowed to defend their title this year."

thepacketmaster learned of "...the possibility of Steven Hawking moving to Waterloo in Canada: 'A report out of Britain suggests Stephen Hawking is considering an invitation to come work at the Perimeter Institute for Theoretical Physics....But he's also being encouraged to move to Ontario by his University of Cambridge colleague Neil Turok, the mathematical physicist who will take over as Perimeter's executive director on Oct. 1. Perimeter confirmed last night that it has made a standing offer to Hawking...Turok is leaving Cambridge after failing to persuade university authorities, research councils and sponsors to spend $40 million...By comparison, Waterloo's Perimeter Institute has about $600 million in funding...The addition of Hawking to Perimeter's staff of top physicists would be a major coup for the research institute, founded in 1999 by Mike Lazaridis, founder and co-CEO of Research In Motion, which makes the BlackBerry.'"

schliz writes "Flash memory chips with a potential lifetime of hundreds of years have been developed by Japanese scientists. The new chips also work at lower voltages than conventional chips, according to the scientists from the University of Tokyo. They are said to be scaleable down to at least 10 nm; current Flash chips wouldn't be usable below 20 nm."

Cowards Anonymous passes along a PCWorld article that begins, "The robotic arm on the Mars Lander found itself in a tough position over the weekend. After receiving instructions for a movement that would have damaged its wrist, the robotic arm recognized the problem, tried to rectify it and then shut down before it could damage itself, according to Ray Arvidson, a co-investigator for the Mars Lander's robotic arm team and a professor at Washington University in St. Louis."

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Launch a career with a college degree from South University. Discover associate's, bachelor's, and graduate college degrees across a variety of programs at South University.

South University Online Degree Programs ... Welcome to South University Online Degree Programs Online Convenience. At South University, we offer a wide variety of convenient online ...

Online Degree Programs at South University, for those seeking the convenience of distance learning

South Dakota State was founded as the state's only land-grant institution in 1881. A land-grant institution is directed to educate the people and to solve problems through ...

South University ... June at South University means graduation, and this year has been a record-breaking year for the university.

South University ... Welcome to the South University Forums.

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Historically black land grant institution founded in 1890.

Select the appropriate Campus and Term. Use the following search criteria to narrow your focus when searching for a course.

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