Daily Archives: February 26, 2012

Face recognition technology is ramped up

face recognition technology

A dot-sized part of a face may soon be all that is needed to identify a person, according to an Australian face recognition expert. Ajmal Mian from the University of Western Australia in Perth is investigating how to use satellite technology to identify facial features that lie under the skin – a technology that could one day be used to identify people who have used cosmetic surgery to alter their face. “Multi-spectral imaging can be used to measure light reflected off … Continue reading

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Granite

Granite Wave

Wave Rock, Hyden, Western Australia by Derek Geer Granite is a common and widely occurring type of intrusive, felsic, igneous rock. Granite usually has a medium- to coarse-grained texture. Occasionally some individual crystals (phenocrysts) are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic texture is sometimes known as a porphyry. Granites can be pink to gray in color, depending on their chemistry and mineralogy. By definition, granite is an igneous … Continue reading

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The Arabian Horse

arabian-horse

The Arabian or Arab horse is a breed of horse that originated on the Arabian Peninsula. With a distinctive head shape and high tail carriage, the Arabian is one of the most easily recognizable horse breeds in the world. It is also one of the oldest breeds, with archaeological evidence of horses that resemble modern Arabians dating back 4,500 years. Throughout history, Arabian horses spread around the world by both war and trade, used to improve other breeds by adding speed, … Continue reading

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Most Neanderthals Gone Before Modern Humans

New findings from an international team of researchers show that most Neanderthals in Europe died off around 50,000 years ago. The previously held view of a Europe populated by a stable Neanderthal population for hundreds of thousands of years up until modern humans arrived must therefore be revised. This new perspective on the Neanderthals comes from a study of ancient DNA published February 25 in Molecular Biology and Evolution. The results indicate that most Neanderthals in Europe died off as early … Continue reading

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New microchip separates cells

cell chip

Cell rolling is a common mechanism cells use to navigate through the body. During inflammation, for example, the endothelial cells that line blood vessels present certain molecules that attract white blood cells just enough to divert them from the rest of the vessel’s cellular traffic. White blood cells then roll along the vessel wall, slowing down to help in the healing of inflamed areas. Researchers at MIT and Brigham and Women’s Hospital have now designed a cell-sorting microchip that takes … Continue reading

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