Articles are provided including a base substrate having a layer of an oriented material thereon, and, a layer of hafnium oxide upon the layer of an oriented material. A quantum dot-targeting agent complex is administered to a patient in need of therapy, and the complex is stimulated using an implanted fiber optic system. The first node identifies a timeout required for processing the service request and sends the service request to a backend application for processing. The coordinates NXW and NZW of the rotated normal vector are then used to obtain coordinates U and V. To these ends, the brewing unit is designed so that it can be pushed into the coffee machine from the front towards the back with the main axis parallel to the direction of insertion. An open end of the row of interconnected vials is heat-sealed.