Abstract: Disclosed herein are system, apparatus, and method for accurately setting a focus flange depth and planarity of a camera lens. An aspect includes a lens housing with at least one camera lens, a camera body with an imaging plane, and a lens mount removably coupling the lens housing to the camera body via a coupling mechanism. At least one shim may be inserted between the lens mount and the camera body to adjust a depth, pitch, and yaw of the camera lens in the lens housing with respect to the imaging plane in the camera body. Each shim may comprise a body having an opening extending from an edge of the body to a center of the body. The opening of each shim is configured to receive the coupling mechanism such that the pitch and yaw may be adjusted without fully removing the lens housing from the camera body.

Abstract: Systems and methods to positively retain an attachment cord to a housing of a blast sensor comprising top and bottom portions are disclosed. The top portion is coupled to the bottom portion in a closed configuration and at least partially separated from the bottom portion in an open configuration. The bottom portion of the housing comprises grooves at first and second ends configured to engage an attachment cord in the open configuration, and to positively retain the attachment cord to the housing of the blast sensor in the closed configuration.

Abstract: Disclosed herein are system, apparatus, and method for accurately setting a focus flange depth and planarity of a camera lens. An aspect includes a lens housing with at least one camera lens, a camera body with an imaging plane, and a lens mount removably coupling the lens housing to the camera body via a coupling mechanism. At least one shim may be inserted between the lens mount and the camera body to adjust a depth, pitch, and yaw of the camera lens in the lens housing with respect to the imaging plane in the camera body. Each shim may comprise a body having an opening extending from an edge of the body to a center of the body. The opening of each shim is configured to receive the coupling mechanism such that the pitch and yaw may be adjusted without fully removing the lens housing from the camera body.

Abstract: Disclosed herein are system, apparatus, and method for accurately setting a focus flange depth and planarity of a camera lens. An aspect includes a lens housing with at least one camera lens, a camera body with an imaging plane, and a lens mount removably coupling the lens housing to the camera body via a coupling mechanism. At least one shim may be inserted between the lens mount and the camera body to adjust a depth, pitch, and yaw of the camera lens in the lens housing with respect to the imaging plane in the camera body. Each shim may comprise a body having an opening extending from an edge of the body to a center of the body. The opening of each shim is configured to receive the coupling mechanism such that the pitch and yaw may be adjusted without fully removing the lens housing from the camera body.

Abstract: Electronic headphones that are operational when worn or placed on the head of a wearer and are non-operational when the electronic headphones are not worn. In exemplary embodiments, one or more sensors in the electronic headphones may detect this change of position of the earcups/pivot arms of the headset which indicates the wearer is no longer wearing the electronic headphones and put the electronic headphones in a non-operational state. Correspondingly, when placed on the head of a wearer, the sensor(s) detect the change of position of the electronic headphones which indicates the wearer is wearing the electronic headphones and puts the electronic headphones in an operational state.

Abstract: Provided herein are aminoglycoside compounds, such as compounds of formula (I), (II), (III), (IV), (IVa), (V), (VI), (VIIa), or (VIIb) or pharmaceutically acceptable salts, solvates, stereoisomers, or tautomers of any of the foregoing, useful as therapeutic or prophylactic agents. Also provided herein are methods for their preparation. The compounds may be useful in treating a bacterial infection in a subject, for example a Gram-negative bacterial infection.

Abstract: An electronic headphone set including a pair of ear cups with a head band interconnecting the ear cups. At least one of the ear cups is movable between a usable position and an unusable position, and electronic circuitry is operably connected to the ear cups. A switch operably interconnects at least one ear cup to the head band and is operable to enable the electronic circuitry when in the usable position and to disable the electronic circuitry when in the unusable position.

Abstract: Provided herein are methods of treating a bacterial infection, wherein the methods comprise administering (a) ceftibuten or a pharmaceutically acceptable salt thereof, or a hydrate of the foregoing; and (b) clavulanic acid, or a pharmaceutically acceptable salt thereof. Also provided are pharmaceutical compositions, articles of manufacture, and kits comprising a) ceftibuten or a pharmaceutically acceptable salt thereof, or a hydrate of the foregoing; and (b) clavulanic acid, or a pharmaceutically acceptable salt thereof, and uses thereof.

Abstract: Provided herein are methods of treating a bacterial infection, wherein the methods comprise administering (a) ceftibuten or a pharmaceutically acceptable salt thereof, or a hydrate of the foregoing; and (b) clavulanic acid, or a pharmaceutically acceptable salt thereof. Also provided are pharmaceutical compositions, articles of manufacture, and kits comprising a) ceftibuten or a pharmaceutically acceptable salt thereof, or a hydrate of the foregoing; and (b) clavulanic acid, or a pharmaceutically acceptable salt thereof, and uses thereof.

Abstract: An air conditioning system for a mine that operates in a mine environment. A condenser. A refuge system for protecting users from a toxic environment. The system comprises a refuge shelter. An evaporator. A method for cooling a refuge shelter. An inflatable chamber having an airlock, the airlock includes a tube that extends from the chamber's outer surface into the chamber's interior.