Method, device and computer program product for transmitting a video signal from a user device includes capturing a plurality of frames of the video signal using a camera at the user device, determining a functional state of the device and selectively stabilizing the video signal prior to transmission based on the functional state. The flow stop valve includes a housing and first and second receiving portions attached to first and second ends of the housing. The cylindrical body, the sealing element and the nozzle insert are preferably formed as a single part. The identified library may include code to identify instantiation of a new process when the MPI thread-based program is executing, and in response, to cause a corresponding thread for the MPI thread-based program to be instantiated. The shield section includes an inwardly facing shield surface which extends in a second plane that is transverse to the first plane of the cutting blade.