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Earth

Harvard Study Links Neonicotinoid Pesticide To Colony Collapse Disorder 217

Posted by samzenpus from the won't-somebody-please-think-of-the-bees? dept.
walterbyrd (182728) writes in with news about a new study from Harvard School of Public Health that links two widely used neonicotinoids to Colony Collapse Disorder. "Colony Collapse Disorder (CCD), or the widespread population loss of honeybees, may have been caused by the use of neonicotinoids, according to a new study out of Harvard University. Neonicotinoids are a class of pesticides, chemically similar to nicotine. They were first developed for agricultural use in the 1980's by petroleum giant Shell. The pesticides were refined by Bayer the following decade. Two of these chemicals are now believed to be the cause of CCD, according to the new study from the School of Public Health at the university. This study replicated their own research performed in 2012."
Medicine

Electric Stimulation Could Help You Control Your Dreams 138

Posted by samzenpus from the lets-get-lucid dept.
sciencehabit (1205606) writes "A new study suggests that mild current applied to the scalp while sleeping can help people become aware of, and even control, their dreams—a phenomenon called lucid dreaming. Researchers recruited 27 men and women to spend several nights in a German sleep lab. After the volunteers had plunged into REM sleep, a state in which people are unable to move and the most vividly recalled dreams occur, researchers applied electrical current to their skulls near the forehead and temples. This boosted neural activity in the frontotemporal cortex, a brain region associated with conscious self-awareness, which normally gets tamped down during REM. Researchers then woke the participants and asked them to detail any dreams they could remember. People who had received 40 Hz of current were lucid in more than 70% of their reported dreams. The researchers suggest that the technique could potentially be used to help people who suffer from chronic nightmares."
Science

Scientists Discover Nickel-Eating Plant Species 57

Posted by samzenpus from the what's-for-dessert? dept.
An anonymous reader writes "A new species of metal-eating plant has been discovered in the Philippines, and the plant loves to eat nickel. From the article: 'Scientists from the University of the Philippines, Los Baños have discovered Rinorea niccolifera, a plant species that accumulates up to 18,000 ppm of the metal in its leaves without poisoning itself, according to Edwino Fernando, lead author of the report and professor, said in a statement. Fernando and his team say that the hyper-accumulation of nickel is a very rare phenomenon, with only about 0.5 percent to 1 percent of plant species native to environments with nickel-rich soil.'"
Medicine

Norwegian Infectious Disease Specialists Have New Theory On HIV In Africa 118

Posted by samzenpus from the snail-problem dept.
mdsolar (1045926) writes in about a Norwegian team who believe they have an explanation about the unique distribution of HIV in Africa. "While around the world a vast majority of AIDS victims are men, Africa has long been the glaring exception: Nearly 60 percent are women. And while there are many theories, no one has been able to prove one. In a modest public health clinic behind a gas station here in South Africa's rural KwaZulu/Natal Province, a team of Norwegian infectious disease specialists think they may have found a new explanation. It is far too soon to say whether they are right. But even skeptics say the explanation is biologically plausible. And if it is proved correct, a low-cost solution has the potential to prevent thousands of infections every year. The Norwegian team believes that African women are more vulnerable to H.I.V. because of a chronic, undiagnosed parasitic disease: genital schistosomiasis (pronounced shis-to-so-MY-a-sis), often nicknamed 'schisto.' The disease, also known as bilharzia and snail fever, is caused by parasitic worms picked up in infested river water. It is marked by fragile sores in the far reaches of the vaginal canal that may serve as entry points for H.I.V., the virus that causes AIDS. Dr. Eyrun F. Kjetland, who leads the Otimati team, says that it is more common than syphilis or herpes, which can also open the way for H.I.V."
Education

Wyoming Is First State To Reject Science Standards Over Climate Change 661

Posted by Soulskill from the in-the-case-of-science-v-politics dept.
Hugh Pickens DOT Com writes: "Time Magazine reports that Wyoming, the nation's top coal-producing state, has become the first state to reject new K-12 science standards proposed by national education groups mainly because of global warming components. The Next Generation Science Standards (NGSS) are a set of science standards developed by leading scientists and science educators from 26 states and built on a framework developed by the National Academy of Sciences. The Wyoming science standards revision committee made up entirely of Wyoming educators unanimously recommended adoption of these standards to the state Board of Education not once but twice and twelve states have already adopted the standards since they were released in April 2013. But opponents argue the standards incorrectly assert that man-made emissions are the main cause of global warming and shouldn't be taught in a state that ranks first among all states in coal production, fifth in natural gas production and eighth in crude oil production deriving much of its school funding from the energy industry.

Amy Edmonds, of the Wyoming Liberty Group, says teaching 'one view of what is not settled science about global warming' is just one of a number of problems with the standards. 'I think Wyoming can do far better.' Wyoming Governor Matt Mead has called federal efforts to curtail greenhouse emissions a 'war on coal' and has said that he's skeptical about man-made climate change. Supporters of the NGSS say science standards for Wyoming schools haven't been updated since 2003 and are six years overdue. 'If you want the best science education for your children and grandchildren and you don't want any group to speak for you, then make yourselves heard loud and clear,' says Cate Cabot. 'Otherwise you will watch the best interests of Wyoming students get washed away in the hysteria of a small anti-science minority driven by a national right wing group – and political manipulation.'"
Transportation

Traffic Optimization: Cyclists Should Roll Past Stop Signs, Pause At Red Lights 490

Posted by Soulskill from the if-they-could-just-stop-texting-i'd-be-happy dept.
Lasrick writes: "Joseph Stromberg at Vox makes a good case for changing traffic rules for bicyclists so that the 'Idaho stop' is legal. The Idaho stop allows cyclists to treat stop signs as yields and red lights as stop signs, and has created a safer ride for both cyclists and pedestrians. 'Public health researcher Jason Meggs found that after Idaho started allowing bikers to do this in 1982, injuries resulting from bicycle accidents dropped. When he compared recent census data from Boise to Bakersfield and Sacramento, California — relatively similar-sized cities with comparable percentages of bikers, topographies, precipitation patterns, and street layouts — he found that Boise had 30.5 percent fewer accidents per bike commuter than Sacramento and 150 percent fewer than Bakersfield.' Oregon was considering a similar law in 2009, and they made a nice video illustrating the Idaho Stop that is embedded in this article."

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