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A new study published in PLoS Medicine has found that skepticism about the benefit of the HPV vaccine remains high among parents of adolescent girls.

Even when financial and healthcare barriers are removed, some parents remain hesitant to have their daughters receive the vaccine - the more educated parents are, the less likely it is they will consent, says the new study.  As a result, policymakers must spend more money to ensure that the debate is properly framed.

The authors surveyed parents of sixth-grade girls (age 11) in a publicly funded school-based program in British Columbia, Canada, to determine the level of uptake of the first dose of the HPV vaccine, and to examine the factors involved in their decision to allow receipt of the vaccine.
Pregnant mothers who smoke during pregnancy may be putting their children at risk psychiatric problems in childhood and young adulthood, according to a new study.

Finnish researchers found that adolescents who had been exposed to prenatal smoking were at increased risk for use of all psychiatric drugs especially those uses to treat depression, attention-deficit/hyperactivity disorder (ADHD) and addiction compared to non-exposed youths. The study will be presented tomorrow at the Pediatric Academic Societies (PAS) annual meeting in Vancouver, British Columbia, Canada.
Researchers from the Seattle Children's Research Institute have found that teenagers who sleep less are more likely to gain weight. Their study, they say, is one of the first studies to document an association between sleep duration and weight in adolescents, even after controlling for calorie intake, activity level and depressive symptoms.

"Sleep has long been recognized as an important health behavior," said lead author Leslie A. Lytle. "We are just beginning to recognize its relationship to overweight and obesity in children and adults alike."
A University of Florida engineer has crafted a nickel-sized imaging device that uses organic light-emitting diode technology similar to that found in laptop screens for night vision. The device is paper-thin, light and inexpensive, making it a possible add-on for cell phones.

Other applications could include night vision technology for car windshields, or even for standard glasses to use at night.
A paper detailing the infrared-to-vision device was published in a recent issue of Advanced Materials.
A new report in the May issue of Cell Metabolism shows that our arteries can also suffer the effects of insulin resistance, though for entirely different reasons than other areas of the body.

Earlier studies showed that in the context of systemic insulin resistance, blood vessels become resistant, too. Doctors also knew that insulin resistance and the high insulin levels to which it leads are independent risk factors for vascular disease. But it wasn't clear if arteries become diseased because they can't respond to insulin or because they get exposed to too much of it.

Insulin sends a signal in our arteries that helps prevent the buildup of fatty plaques that can cause arteries to harden.
In 1872 Charles Darwin completed what may be the first example of a prospective "single-blind" study of human perception of emotional expression.

Through scrutiny of Darwin's previously unpublished handwritten notes on his experiments, neuroscientists have demonstrated how this early experiment has direct implications to current work today in the areas of schizophrenia, autism spectrum disorders and other neuropsychiatric conditions.

The appears in the Journal of the History of the Neurosciences.