Abstract: Disclosed are a projector and a projection positioning method. The projector includes a projector body, a first ranging sensor, a processor and a focal length controller. The projector body includes a projection lens configured to play projection content of a preset area. The first ranging sensor is provided on the projector body and configured to collect position data of a target object within a projection calibration frame formed by the projection lens. The processor is provided on the projector body and at least configured to calculate area data of an adjusted projection calibration frame based on the position data. The focal length controller is communicated with the processor and configured to adjust a focal length of the projection lens according to the area data to change an area of the projection calibration frame played by the projection lens.

Abstract: Provided herein are compounds of formula (1): or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein X1, X2, Ry, Rz, R1, R2, R3, and R4 are as defined herein. Also provided herein is a pharmaceutically acceptable composition comprising a compound of formula (I), or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing. Also provided herein are methods of using a compound of formula (I), or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, to treat various diseases, disorders, and conditions responsive to the modulation of the contractility of the skeletal sarcomere.

Abstract: Provided are compounds of Formula (I): or a pharmaceutically acceptable salt thereof, wherein A, Z, B, R1, R2, R3, G1, G2, and G3 are as defined herein. Also provided is a pharmaceutically acceptable composition comprising a compound of Formula (I), or a pharmaceutically acceptable salt thereof. Also provided are methods of using a compound of Formula (I), or a pharmaceutically acceptable salt thereof.

Abstract: Provided herein are compounds of formula (I): or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein X1, X2, Ry, Rz, R1, R2, R3, and R4 are as defined herein. Also provided herein is a pharmaceutically acceptable composition comprising a compound of formula (I), or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing. Also provided herein are methods of using a compound of formula (I), or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, to treat various diseases, disorders, and conditions responsive to the modulation of the contractility of the skeletal sarcomere.

Abstract: Provided are compounds of Formula (I): or a pharmaceutically acceptable salt thereof, wherein A, Z, B, R1, R2, R3, G1, G2, and G3 are as defined herein. Also provided is a pharmaceutically acceptable composition comprising a compound of Formula (I), or a pharmaceutically acceptable salt thereof. Also provided are methods of using a compound of Formula (I), or a pharmaceutically acceptable salt thereof.

Abstract: Provided are compounds of Formula (I): or a pharmaceutically acceptable salt thereof, wherein A, Z, B, R1, R2, R3, G1, G2, and G3 are as defined herein. Also provided is a pharmaceutically acceptable composition comprising a compound of Formula (I), or a pharmaceutically acceptable salt thereof. Also provided are methods of using a compound of Formula (I), or a pharmaceutically acceptable salt thereof.

Abstract: Provided are compounds of Formula (I): or a pharmaceutically acceptable salt thereof, wherein A, Z, B, R1, R2, R3, G1, G2, and G3 are as defined herein. Also provided is a pharmaceutically acceptable composition comprising a compound of Formula (I), or a pharmaceutically acceptable salt thereof. Also provided are methods of using a compound of Formula (I), or a pharmaceutically acceptable salt thereof.

Abstract: Provided are compounds of Formula (I): or a pharmaceutically acceptable salt thereof, wherein A, Z, B, R1, R2, R3, G1, G2, and G3 are as defined herein. Also provided is a pharmaceutically acceptable composition comprising a compound of Formula (I), or a pharmaceutically acceptable salt thereof. Also provided are methods of using a compound of Formula (I), or a pharmaceutically acceptable salt thereof.

Abstract: A plunger or declogger assembly device is described that includes a collapsible frusto-conical container body and a valve-equipped lid for applying liquid, such as water, under pressure to clear drain clogs when the plunger device is placed over a drain opening. The frusto-conical container body is collapsible and the cover member or lid has a built-in lip for sealing purposes and the cover member is valve-equipped so as to release water only when downward pressure is applied to the top of the container, forcing the container to vertically and concentrically collapse and thereby force the liquid out and into the clogged drain.