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Tue, 22 Aug 2017 15:36:17 EDT
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.
Tue, 22 Aug 2017 15:36:10 EDT
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.
Tue, 22 Aug 2017 14:57:12 EDT
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.
Tue, 22 Aug 2017 14:57:09 EDT
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.
Tue, 22 Aug 2017 14:50:09 EDT
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.
Tue, 22 Aug 2017 14:47:22 EDT
Saturn-lit Tethys
Cassini gazes across the icy rings of Saturn toward the icy moon Tethys, whose night side is illuminated by Saturnshine, or sunlight reflected by the planet.
Tue, 22 Aug 2017 14:45:07 EDT
Large asteroid to safely pass Earth on Sept. 1
Asteroid Florence, a large near-Earth asteroid, will pass safely by Earth on Sept. 1, 2017, at a distance of about 4.4 million miles, (7.0 million kilometers, or about 18 Earth-Moon distances).
Tue, 22 Aug 2017 14:42:25 EDT
Brown dwarf weather forecasts improved
Dim objects called brown dwarfs, less massive than the Sun but more massive than Jupiter, have powerful winds and clouds -- specifically, hot patchy clouds made of iron droplets and silicate dust. Scientists recently realized these giant clouds can move and thicken or thin surprisingly rapidly, in less than an Earth day, but did not understand why.
Tue, 22 Aug 2017 14:27:41 EDT
Like adults, children show bias in attributing mental states to others
Young children are more likely to attribute mental states to characters that belong to the same group as them relative to characters that belong to an outside group, according to new findings. The study shows that 5- and 6-year-olds were more likely to describe interactions between two characters in terms of what they were thinking and feeling when the characters had the same gender or geographic origin as them.
Tue, 22 Aug 2017 13:18:23 EDT
The moving Martian bow shock
Physicists throw new light on the interaction between the planet Mars and supersonic particles in the solar wind.
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