Abstract: The technology described herein is directed to methods, kits, compositions, devices, and systems for detecting a target nucleic acid, such as a viral RNA. In one aspect, described herein are methods of detecting the target nucleic acid. In other aspects, described herein are compositions, kits, devices, and systems suitable to practice the methods described herein to detect the target nucleic acid.

Abstract: A self hair-cutting device is disclosed herein. The self hair-cutting device includes a pair of earpieces, the pair of earpieces configured to support the self hair-cutting device from the ears of a user; a pair of side guide members, each of the pair of side guide members coupled to a respective one of the pair of earpieces, and each of the pair of side guide members configured to form a side cutting guide for trimming a side hair line on opposed sides of the neck of the user; and at least one bottom guide member coupled to the pair of side guide members, the at least one bottom guide member configured to form a lower cutting guide for trimming a rear hair line of the user. One or more components of the self hair-cutting device are adjustable relative to one another to accommodate varying head geometries of different users.