Methods, systems, and computer program products are provided for improving the processing of database queries. In the child machine, a moving track of an object to be operated is obtained in response to an input with a pointing device by a player, and transmitted to the parent machine. Declarative information associated with the one or more binary artifacts of the second application can be then modified using metadata associated with the first application. The ear mold can also be position to touch the bony portion of the ear canal and provide sound attenuation in the ear canal. A third radiation reflector is designed in the form of a third hollow mirror for the reflection of the measuring beam received after passing through the optical measuring path onto a first radiation detector. The method includes using a non-uniform scaling to selectively enhance pixel density, preferably in preparation for other image processing.