Micro-electromechanical devices include a temperature-compensation capacitor and a thin-film bulk acoustic resonator having a first terminal electrically coupled to an electrode of the temperature-compensation capacitor. A mirrored collector collects and reflects the EUV radiation generated at a first focus towards a second focus. The bead, tether, and stent assembly are advanced into the patient as a unit via a conventional cystoscope. The telescoping tower is mounted vertically from one side of the rectangular base, and when extended, has a height greater than a hospital bed. A credit value for the transaction is determined.