A frame structure of a vehicle includes a flywheel housing, an intermediate housing and a transmission case that are connected to each other along a longitudinal axis of the vehicle to constitute a vehicle frame with an inner space for accommodating a running-power transmission path for transmitting power from an engine to drive wheels via a HST unit. In particular, the disclosure is concerned with alkene piperidine derivatives that possess unique antiviral activity. The sensing element is positioned at the first end of the mounting element with the mounting element having a length that is adjustable along the longitudinal axis. In a circuit using the solid electrolytic capacitor, the space efficiency on aboard can be enhanced, and the cost can be reduced. Command messages are delivered through a streaming media distribution system to client media players which obtain or present the dynamic content, in association with any desired configuration changes to the appearance of the media player or the method or manner in which the dynamic content is presented. In a ladder stabilizing configuration, the extension ladder stabilizer is installed on a ladder and the ground engagement members are passed through the anchor channels and into the ground to secure the ladder from side slipping, kicking back, and kicking over when in use.