A method for explicit data rate control is introduced into a packet communication environment which does not have data rate supervision by adding latency to the acknowledgment packet and by adjusting the size of the flow control window associated with the packet in order to directly control the data rate of the source data at the station originating the packet. The programming gate is spaced from the pass gate by a drain extension region of the LDMOS structure. When the second holder moves in the direction of the opening portion, the first holder is accordingly pushed and moved. Activation of the URL by an end user causes the stream to be served to the end user, without the client receiving or providing an indication of the specifics of where the content was stored. Bioassays show that the synthetic thaxtomin A is not significantly different from the natural one in herbicidal activity.