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                      NEWS 
                         
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                      Protein 
                        logic digitizes cells 
                        Brain 
                        researchers often use the analogy of brain as computer 
                        to frame their work. As it turns out, the analogy is also 
                        handy for examining the complex biochemical interactions 
                        inside individual cells... 
                         
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                      Spray-on 
                        solar cell manufacturing 
                         
                         Researchers from Delft University of Technology 
                        in the Netherlands have developed a low-cost spray-on 
                        manufacturing technique for making solar cells... 
                         
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                      Biochip 
                        spots cancer signs 
                         
                         The practice of chemically "functionalizing" carbon 
                        nanotubes and semiconductor nanowires by attaching DNA 
                        or other biomolecules to them has led to prototype biochips 
                        that can detect bacteria, viruses, specific types of DNA, 
                        or particular proteins molecules... 
                         
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                       Plasma 
                        pen to fight plaque 
                         
                         In the not too distant future, your dental hygienist 
                        might stick what looks like a small blowtorch into your 
                        mouth. It shouldn't hurt, though, because the device will 
                        be emitting cold plasma rather than hot flame... 
                         
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                      Bits 
                        and pieces 
                        High-speed organic memory, current altering 
                        salt, and measuring how surfaces change atoms. | 
                     
                     
                       
                        FEATURES 
                         
                         
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                      View 
                        from the High Ground: 
                        Georgia Tech's Ronald Arkin 
                        The economics of labor, making robots as 
                        reliable as cars, getting robots to trust people, biorobotics, 
                        finding the boundaries of intimate relationships with 
                        robots, how much to let robots manipulate people, giving 
                        robots a conscience, robots as humane soldiers and The 
                        Butlerian Jihad. 
                         
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                      How 
                        It Works: Two schools of cryptography 
                        There are two approaches to securing information: 
                        extremely difficult mathematical problems and the randomness 
                        of nature. Both count on the limits of technology.  | 
                     
                   
                   
                   
                  
                   
                   
                  
                  
                   
                   
                    
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