A method for rendering a substrate hydrophobic includes treating the substrate with an acyloxysilane. Partial adenosine A1 receptor agonists and methods for using partial adenosine A1 receptor agonists to treat arrhythmias in mammals. The actuation system further includes a fluid motor and configured to move the wiper stick on the windscreen. At least one of the first and second movement assemblies is configured to delay movement of a corresponding appendage. In so doing, the arbitrary plane becomes repositionable with respect to a scene that the multi-imager is viewing. The extract of Tiarella polyphylla and the tiarellic acid isolated therefrom shows the inhibitory effect on the LTC4 release in vitro test and the suppressive effect on the IgE level and the cytokine production, airway hyperresponsiveness, and leukocyte infiltration in OVA-induced asthmatic mice.