Mobile device users may be tracked either via mobile-signal triangulation or via Global Positioning Satellite information. The fluid guide apparatuses generate a first jet of air in a direction generally parallel with a wall in the closed position and a second jet of air in a direction oblique to the wall in the closed position. The bracket also includes first and second flanges extending from the first side of the base, the first and second flanges defining an elongate aperture therebetween. A comparator block determines if the magnitude of the first signal is greater than or equal to the magnitude of the second signal. In operation, the relay is turned on or off based on the control data for controlling the onoff duration of the first value. A method for lowering cholesterol and reducing risk of a myocardial infarction employing such composition is also provided.