A method for controlling the transmission of data via data connections associated with different applications, by means of a transmission medium in a local network having at least two stations for data transmission. A semi-rigid paint roller cover manufactured from a small diameter tubular knitted pile fabric is placed within a vacuum sealable plastic bag, which is subsequently evacuated and sealed, collapsing the semi-rigid paint roller cover to a flattened configuration. The data structures can comprise knowledge signatures stored on computer-readable media. In response to receiving notification of the transaction the filter may perform an action as appropriate. since electrochemical oxidization or reduction brings about a color change, the contrast and the black concentration can be enhanced, and bronzing after long-time use does not occur. An initial request in each client session is sent to the site load balancer, thus, greatly enhancing the capability of the site to accept new session requests.