Abstract: Tamper-proof gateways are described. A gateway comprises a date intake module, a data transmission module, a tamper switch and a controller. The data intake module couples to one or more data generation devices. The data transmission module is configured to transmit sense information generated by the one or more data generation devices to a network. The tamper switch is configured to generate an alert signal in response to sensing tampering of the tamper-proof gateway. The controller is configured to: 1) place the tamper-proof gateway in a secure state in response to receiving the alert signal from the tamper switch, and 2) withdraw the tamper-proof gateway from the secure state in response to receiving authentication information. Withdrawing the gateway from the secure state may comprise placing the tamper-proof gateway in a first privileged state or a second privileged state.

Abstract: A portable variable focus microscope includes a housing having a lower section and an upper section secured together. A lens is removably disposed on at least one lens retention feature of the upper section. The scope further includes a slide platform and a height adjuster, where rotation of the height adjuster within the scope housing adjusts a relative distance between the slide platform and the lens to adjust a focus of the lens. The scope may be used in conjunction with a mobile data device to capture an image of a sample on a slide received in the scope. A program including a CNN algorithm may be employed to identify contaminants in the sample.