Propylene polymer including at least two propylene polymer fractions of different melt flow index and a minor amount of at least one comonomer may be characterized by specific ranges for melt flow index, xylene solubles content and recovery compliance. These compounds have neprilysin inhibition activity. Each of the projectors includes a light source array, which consists of a plurality of light sources for projecting light beams towards a split visual field via the projectors respectively. The removable module is removed from the first computer system and inserted into the second computer system where the running image of the operating system is loaded to a second memory accessible by the one or more processors included in the second computer system. A device in the form of a solution containing a filter medium comprised of sheets or strips or spheres of lipid bilayer or virus-like structures or hypoallergenic surfaces to carry cell-surface receptors, each type of medium having affixed to its surface cell-surface receptors intended to engage and neutralize the infectious nature of HIV virions provides an effective strategy to avert AIDS. A first distributed Bragg reflector is arranged on a second surface of the substrate opposite to the first surface, the first distributed Bragg reflector to reflect light emitted from the light-emitting structure.