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 Photographer Sees Stunning Auroras Over Swedish Mountains (Photos, Video) Read More » Sound Machines Could Be Hurting Baby's Ears Parents-to-be may want to think twice before putting an infant sleep machine on their baby registry. Canadian researchers have found that when noise machines are used on a regular basis, they can produce sound levels that can be dangerous for infants' ears, which may lead to hearing, speech or learning problems. "I'm not saying that these devices will cause hearing loss — I'm just saying that they could," said Dr. Blake Papsin, a study author and otolaryngologist-in-chief at The Hospital for Sick Children in Toronto. However, by using infant sound machines, "people are taking a noisy environment and adding more noise to it, without even thinking about the amount," Papsin told LiveScience. Read More »Wavy vs. Straight: Physics of Curly Hair Teased Out The first detailed model of a 3D strand of curly hair has been created, a development that could be a boon for the film and computer animation industries, researchers say. Now, researchers at MIT, in Cambridge, Mass., and the Université Pierre-et-Marie-Curie (UPMC), in Paris, are teasing out the physics of curly hair. "Our work doesn't deal with the collisions of all the hairs on a head, which is a very important effect for animators to control a hairstyle," study co-author Pedro Reis, an assistant professor in MIT's department of civil and environmental engineering, said in a statement. The researchers combined their lab demonstrations with computer simulations to identify several key parameters of curly hair: curvature (as a ratio of curvature to length) and weight (as a ratio of weight to stiffness). Read More »Vaccination Messages May Backfire, Study Finds Although public health researchers have worked to counter misinformation about vaccines and raise vaccination rates, a number of the methods they are using may be ineffective, according to a new study. Surveying 1,759 parents, researchers found that while they were able to teach parents that the vaccine and autism were not linked, parents who were surveyed who had initial reservations about vaccines said they were actually less likely to vaccinate their children after hearing the researchers messages. "The first message of our study is that the messaging we use to promote childhood vaccines may not be effective, and in some cases may be counterproductive," said Brendan Nyhan, an assistant professor in the department of government at Dartmouth College, who researches misconceptions about health care. "We need more evidence-based messaging about vaccines. Read More »Fitness Trackers Could Boost Kids' Health, But Face Challenges, Experts Say But few studies have looked at the best way for children to use the trackers, said Michelle Garrison, an epidemiologist at Seattle Children's Research Institute and the University of Washington School of Medicine. And the trackers out there aren't an ideal fit for the needs of children and their families, other experts say. But there are some reasons to think trackers could be effective in children. Read More »Mountain Lion Family Feast Caught on Camera Read More » Ocean's Biggest Current Carries More Water Than Thought Read More » South African scientists map HIV antibodies in vaccine hunt Scientists in South Africa have mapped the evolution of an antibody that kills different strains of the HIV virus, which might yield a vaccine for the incurable disease, the National Institute of Communicable Diseases said on Monday. The scientists have been studying one woman's response to HIV infection from stored samples of her blood and isolated the antibodies that she developed, said Lynn Morris, head of the virology unit at the NICD. The study, by a consortium of scientists from the NICD, local universities and the U.S. Vaccine Research Centre of the National Institute of Allergy and Infectious Diseases, was published in the journal Nature. Humans respond to HIV by producing antibodies to fight the virus. Read More »Private Mars Flyby Mission in 2021 Needs NASA's Help, Experts Tell Congress (Video) Read More » NASA, Astronauts Beam Congrats to 'Gravity' on Oscar Wins Read More » South African scientists map HIV antibodies in vaccine hunt Read More » | ||||
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Monday, March 3, 2014
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