Lubricant compositions comprising biodegradable ester base stocks are provided for water-cooled or air-cooled two-cycle engines. Stored heat or cold is released from the heat storage tank for heating or cooling a house for a whole day. A related method is also illustrated, the method including temporarily supporting the work piece on the taxidermy stand until additional fasteners can be placed. The disclosed device provides a sizeable capacitance variation and high Q factor, resulting in overall low filter insertion loss. Embodiments include a camera head swing motion drive system for selectively positioning the camera head along the camera head range of motion path. Here, the light emitting layer 312 shows a first emission spectrum 330 having peaks both in a blue to blue green wavelength range and in a yellow to orange wavelength range, and the light emitting layer 322 shows a second emission spectrum 340 having peaks both in a blue green to green wavelength range and in an orange to red wavelength range.