A method includes transmitting, from a storage system to a user system, information that, when processed by the user system, causes the user system to display a current view representing the one or more items. The switchable power combiner has an output section that is a signal source connected to a transformer section. The synchronizing unit is connected to a bus. The two transforming elements are pivoted at the two sides of the insulating main body by a side-rotation method. The novel pyrimidine derivatives of the present invention are represented by the following formula:wherein when R1 represents H, R2 represents a substituted indanyl selected from the group consisting ofor wherein R1 and R2 taken together represent a group of the formula:.