This invention provides log singulators which allow for the vertical singulation of piles of logs fed from typical in-feed log decks, so that these logs may be fed individually to typical out-feed conveyors. The novel imino compound thus synthesized is a ligand capable of activating nuclear receptor superfamily such as retinoid orphan receptor, peroxisome proliferator-activated receptor and steroid receptor, and shows an effect of promoting the transcription of a drug-metabolizing enzyme CYP7A1. Furthermore, the capacitor of the present invention also employs a light reflective layer that overlies the solid organic electrolyte layer. Such antibodies are useful in the diagnosis and treatment of viral infection. The first user rating is adjusted in response to feedback from a second user, where the degree of adjustment is dependent upon a second user rating of the second user. This visualization may help the user better understand and analyze the contents of the dataset.