John L. Langan

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An array of polymer grid triodes connected by a common grid functions as a "plastic retina," providing local contrast gain control for image enhancement. This simple device, made from layers of conducting polymers, functions as an active resistive network that performs center-surround filtering. The polymer grid triode array with common grid is a continuous(More)
f—many experts say when—the next influenza pandemic strikes the United States, what values should guide our decisions on allocating tragically scarce resources such as vaccines, antiviral drugs, and ventilators? What ethical resources do we have to guide us in making these immensely difficult choices? In 1918, nearly one in every two deaths in the United(More)
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