Abstract: Methods are provided for modulating MRGPR X4 generally, or for treating a MRGPR X4 dependent condition more specifically, by contacting the MRGPR X4 or administering to a subject in need thereof, respectively, an effective amount of a compound having the structure of Formula (I). or a pharmaceutically acceptable isomer, racemate, hydrate, solvate, isotope, or salt thereof, wherein n, x, A, Q1, Q2, Z, R, R1, R2, R3, R4 and R5 are as defined herein. Pharmaceutical compositions containing such compounds, as well as to compounds themselves, are also provided.

Abstract: Compounds are provided having the structure of the following Formula I: where R, R1, R2, R3a and R3b are as defined herein. Pharmaceutical compositions comprising such compounds, as well as methods related to their manufacture and use, are also provided.

Abstract: There is provided to a path following arrangement having a catenary structure and a method for operating such an arrangement. The path following arrangement permits a ride participant or a passenger to traverse tracts of land having a relatively wide range of scenic variety in that the path of travel can include linear portions and non-linear (change of direction) portions.