ScienceDaily Top Science Headlines
for Sunday, September 28, 2008
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Learning From Mistakes Only Works After Age 12, Study Suggests (September 27, 2008) -- Eight-year-old children have a radically different learning strategy from twelve-year-olds. Eight-year-olds learn primarily from positive feedback, whereas negative feedback scarcely causes any alarm bells to ring. Twelve-year-olds are better able to process negative feedback, and use it to learn from their mistakes. The switch in learning strategy can be seen in the brain areas responsible for cognitive control. ... > full story
Lung Cancer: Radiation, Immunotherapy Gives Greater Effectiveness, Study Suggests (September 27, 2008) -- Scientists have found the right formula of radiation and immunotherapy for fighting lung cancer tumors in mice, which they hope will translate to better treatment in human lung cancers. ... > full story
Bees Can Mediate Escape Of Genetically Engineered Material Over Several Kilometers (September 27, 2008) -- Bees have the potential to mediate the escape of transgenes (genetically engineered material) from crops to their wild relatives over several kilometers. The findings bear significant implications for the introduction of genetically modified crops in Africa. ... > full story
New Tool Helps Physicians Tailor Hormone Therapy For High-risk Prostate Cancer Patients (September 27, 2008) -- Using one of the largest databases of prostate cancer outcomes in the United States, Fox Chase Cancer Center researchers have developed a prediction tool that uses a patient's clinical information to estimate the benefit of adding androgen deprivation therapy of various durations to radiation therapy. ... > full story
Size And Fitness Levels Of NHL Players Have Improved, Study Shows (September 27, 2008) -- Researchers looked at a National Hockey League team over a 26-year cycle and discovered players have become bigger and fitter. ... > full story
Tobacco-movie Industry Ties Traced To Hollywood's Early Years (September 27, 2008) -- Today's movie industry still draws on those images to justify smoking in movies -- even as public health experts call for smoking to be eliminated from youth-rated films. Last month the National Cancer Institute concluded that on-screen smoking causes youth to start smoking. ... > full story
Mother Of A Goose! Giant Ocean-going Geese With Bony-teeth Once Roamed Across SE England (September 27, 2008) -- A 50 million year old skull reveals that huge birds with a 5 meter wingspan once skimmed across the waters that covered what is now London, Essex and Kent. These giant ocean-going relatives of ducks and geese also had a rather bizarre attribute for a bird: their beaks were lined with bony-teeth. ... > full story
Gene Variant Boosts Risk Of Fatty Liver Disease (September 27, 2008) -- Researchers have found that individuals who carry a specific form of the gene PNPLA3 have more fat in their livers and a greater risk of developing liver inflammation. ... > full story
Vaccine For Pneumococcus Disease Possible, With New Immune System Finding (September 27, 2008) -- New research has shown how the immune system detects and destroys the bug, pneumococcus, which could help in the development of a new vaccine against the disease. ... > full story
Breast Cancer Treatment Resistance Linked To Signaling Pathway (September 27, 2008) -- Activation of the Src signaling pathway may cause resistance to standard medical treatment in some patients with breast cancer, and inhibition of this pathway holds the potential to overcome that resistance, according to new data. ... > full story
From One Laying To Another, The Female Collembolan Adapts Its Eggs To Environmental Constraints (September 27, 2008) -- Reproductive plasticity -- the ability of individuals to modify their reproduction and the characteristics of their progeny according to environmental or social conditions -- is a crucial factor in the demographics of animal populations, including man. Scientists have now demonstrated the adaptive nature of the reproductive behavior of certain arthropods from one laying to another, in the same female. ... > full story
Weak Bladders Deter Many Young Women From Sports Participation (September 27, 2008) -- A weak bladder is putting many young women off participating in sport, or prompting them to give it up altogether, suggests new research. ... > full story
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