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TechLiquid Logic: Tiny plumbing networks concoct and compute
By incorporating thousands of simple valves into microscopic networks of rubbery pipes and chambers, scientists have created fluid-manipulating microchips of unprecedented power.
By Peter Weiss -
Health & MedicineSideways Glance: Training helps people circumvent failing sight
Researchers have developed a rehabilitation regime that may enable many elderly people with age-related macular degeneration to improve their vision.
By Nathan Seppa -
Health & MedicineAnother Polio? Alarming West Nile fever risks emerge
Medical workers have found poliolike symptoms in a few victims of West Nile fever, and federal officials noted that blood transfusions appear to have infected some people.
By John Pickrell and Janet Raloff -
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These associations between fungi and parasitic plants also exist in North America.