Abstract: A rear-view mirror for a vehicle has a convex reflecting surface composed of a plurality of distinct curved surfaces each having a selected shape that are smoothly joined with each other with a continuously varying average curvature. The average curvature increases gradually along the vertical direction from the top to the bottom of the mirror and along the transverse horizontal direction away from the body of the vehicle. The mirror provides a wide viewing around both sides and of the rear of the vehicle without blind spots and provides a clear image with little distortion that is visually acceptable to a driver.

Abstract: This invention relates to a composition for controlling house dust mites. The composition comprises neem seed kernel extract containing azadirachtin, an alcoholic extract of plant resins, plant polyphenols or phenolic compound, fungistat used in food industry and a dispersion medium. The invention further includes a process of preparing the same by dispersing the above ingredients in a dispersion medium.