A vertical axis turbine includes a modified darrieus type rotor having at least three circumferentially spaced apart blades, each having an airfoil shape in cross section such that the blades generate a torque in a direction of rotation of the turbine about the vertical axis responsive to a generally horizontal wind across the blades. The terminal is operative in response to user input to generate emergency messages which are transmitted to one or more predetermined recipients via one or more mediums of communication. The reagents and assays described herein are also useful for determining the chemosensitivity of human cancer cells to treatment with chemotherapeutic drugs.