Certain surfactants suitable for use alone to dissolve a water-insoluble component in compositions is described for providing VOC-free compressed gas aerosol compositions. During operation, the system assesses the security-posture of the computing device upon which the encrypted data is stored. The motor flange is equipped with a centering collar that has a flattened portion on its otherwise circular circumference. The measurement probe includes a rotary-translation stage with coarse and fine screws that enable a user to make point contacts in a cryogenic, evacuated environment where the point contact junction can be controlled at room temperature by turning a knob. The first application server authenticates the third party server information and verifies client authorization based on third party information. The weight of the supported plant urges the first substantially horizontal member against the first surface of the structure and urges the second substantially horizontal member against the second surface of the structure, thereby securing the apparatus to the structure.