Merging Physics And Neuroscience: First Evidence Of Self-Organized Criticality In Brain Networks
...ding to avalanches ofvarying sizes -- as grains of sand are slowly added. The work andits implications remain controversial in the physics community. In brain cells, random firing of neurons creates noise thatmoves the system toward criticality, Jung explained. Without thenoise, the system would remai...Purdue-Made Soil Benefits The Environment
...ixing this material with poor-quality soil -- even sand and gravel -- creates a man-made topsoil that in preliminary laboratory tests outperformed local topsoil in terms of yield," she says. The main ingredients in the soil all come from Purdue and the surrounding area. The coal ash comes from Purdue's Wa......s to the system. The first is a bedof oxide-coated sand which attracts and holds onto heavy metalsin the s...off. Lab-scale experiments demonstrated thespecial sand can dramatically reduce the concentrations ofpollutants such as lead, cadmium, copper and zinc. This...