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  • Self-powered paper-based 'SPEDs' may lead to new medical-diagnostic tools
    A new medical-diagnostic device made out of paper detects biomarkers and identifies diseases by performing electrochemical analyses -- powered only by the user's touch -- and reads out the color-coded test results, making it easy for non-experts to understand.
  • Tricking the eye to defeat shoulder surfing attacks
    Researchers have developed the first application to combat 'shoulder-surfing' of PINS and passwords: a hybrid-image keyboard that appears one way to the close-up user and differently at a distance. The technology blends one image of a keyboard configuration with high spatial frequency and a completely different one with low spatial frequency. Experiments showed it was effective for mobile phones and when video cameras recorded PIN entry, as might happen at an ATM.
  • Firing of neurons changes the cells that insulate them
    Through their pattern of firing, neurons influence the behavior of the cells that upon maturation will provide insulation of neuronal axons, according to a new study. The findings suggest the existence of a complex and nuanced interplay between neurons and the non-neuronal cells that support and protect them.
  • Does a mother's pre-pregnancy weight determine her child's metabolism?
    The link between a mother's body mass index (BMI) before pregnancy and the metabolic traits of her children is likely mediated by shared genetics and familial lifestyle rather than effects on the fetus during gestation, according to new study.
  • Hubble's twisted galaxy
    Gravity governs the movements of the cosmos. It draws flocks of galaxies together to form small groups and more massive galaxy clusters, and brings duos so close that they begin to tug at one another. This latter scenario can have extreme consequences, with members of interacting pairs of galaxies often being dramatically distorted, torn apart, or driven to smash into one another, abandoning their former identities and merging to form a single accumulation of gas, dust and stars.


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