The invention provides compositions comprising formula 1 steroids, e. The bamboo panel element includes a bamboo laminate layer with first and second layers of a plurality of bamboo strips having a cortex and pith surface, parallel and longitudinally cut from bamboo culm pressed flat and planed wherein the first and second layers are each planed to a thickness. In certain embodiments, safety features may also be included in the devices. Because the second alignment marks can be repeatedly used, scribe line areas for forming these alignment marks and measuring time are saved to increase the production throughput. A pigment is preferably incorporated into the photosensitive coating solution as a liquid dispersion. The pump has a non-contact seal disposed on the impeller.