The present invention concerns novel heteroaryl-N-aryl carbamates and their use in pest control, as insecticides and acaricides This invention also includes preparation of the pesticide compositions containing the compounds, and methods of controlling insects using the compounds. The technique processes the image data by reference to data parameters both in two dimensions and in three dimensions. The method also includes processing received media streams such that media streams received from endpoints associated with the first location are processed as having a higher priority than media streams received from endpoints associated with the second location. A joint cover portion for covering the section where two or more edge cladding members meet. A comparator takes the ratio of the two signals to produce a smoke-dependent warning output. Also provided are biomedical devices formed from such polymerization products.