The application describes a stable liquid washing or liquid cleaning agent with an acid-treated cellulose or an acid-treated cellulose derivative. A sampling bandwidth is designated based on at least one of current velocity information, current positional information, and current distance to the identified endpoint. In addition, protective films are provided on both end surfaces of the element body and on the current collectors so that the current collectors are exposed near the respective ends in the longitudinal direction of the element body. This bid-side entry includes a market participant identifier, a lot size, and a bid price. When certain conditions are met, e. If the email server receives an email message including the request code from the email sender, the email server may provide a portion of the email message to the email client for determining whether or not to provide an authorization code to the email sender.