Abstract: or a salt (e.g., pharmaceutically acceptable salt) or stereoisomer thereof, wherein X, Y, R1a, R1b, R2, R3, R4s, R5, p, and n are as defined herein. Use of the compounds as a component of a pharmaceutical compositions and methods for their use are also provided.

Abstract: A blade platform, comprising a pair of side edges and a pair of bottom edges, wherein the side edge comprises a linear portion and a curved portion, wherein the linear portion comprises a first linear portion and a second linear portion, and the curved portion comprises a first curved portion and a second curved portion; wherein the first linear portion and the second linear portion are connected to two ends of the curved portion and are tangent to the curved portion, slopes of the first curved portion and the second curved portion are in the same direction and the first curved portion and the second curved portion are circumscribed. The benefits of the blade platform are that the problems of platforms pushing against each other and get stuck during the working state as in the prior art or lack of accuracy in the test results of the blade circumferential clearance test and the dynamic balance test can be avoided.

Abstract: or a stereoisomer or salt (e.g., pharmaceutically acceptable salt) thereof, wherein R1, R2, R3, R4, R5, p, m, and n are as defined herein. Use of the compounds as a component of a pharmaceutical compositions and methods for their use are also provided.

Abstract: A polarization modulator for stereoscopic projection comprises a polarization beam splitting prism assembly for splitting an incident beam into a transmitted beam, an upper half of reflected beam, and a lower half of reflected beam, a polarization plane rotating component for rotating the polarization plane of the transmitted beam or of the upper half of reflected beam and the lower half of reflected beam by 90 degrees, a reflective mirror for adjusting a propagation direction of the upper half of reflected beam and the lower half of reflected beam, a lens group for adjusting the range of size of the transmitted beam, a linear polarizer for filtering the beam, a polarization modulator for modulating the transmitted beam, the upper half of reflected beam and the lower half of reflected beam into counter-clockwise circularly polarized light and clockwise circularly polarized light in the order of frames, and a driving circuit.

Abstract: A polarization modulator for stereoscopic projection comprises a polarization beam splitting prism assembly for splitting an incident beam into a transmitted beam, an upper half of reflected beam, and a lower half of reflected beam, a polarization plane rotating component for rotating the polarization plane of the transmitted beam or of the upper half of reflected beam and the lower half of reflected beam by 90 degrees, a reflective mirror for adjusting a propagation direction of the upper half of reflected beam and the lower half of reflected beam, a lens group for adjusting the range of size of the transmitted beam, a linear polarizer for filtering the beam, a polarization modulator for modulating the transmitted beam, the upper half of reflected beam and the lower half of reflected beam into counter-clockwise circularly polarized light and clockwise circularly polarized light in the order of frames, and a driving circuit.