An article is disclosed which comprises a substrate and an outermost layer where the outermost layer or a portion thereof adheres to or in contact with the substrate and comprises a polyolefin composition and the article provides long lifetime, highly abrasion-resistant articles for use in a wide range of aggressive environmental conditions and can be used as safety glass or solar cell laminate. The first layer has a low stiffness per unit area which allows motion in the direction perpendicular to its main plane. A first difference between a synchronization event timestamp of the first synchronization event and the synchronization event timestamp of the second synchronization event is calculated. The contents and permissions of each legacy share may then be copied to a unique share name on another server. According to said method, a universal multicast channel is installed in the cells of the mobile radiotelephone network for transmitting IP-based multicast data streams from a base station to subscriber-end terminals. In a state where the rotary body joining tool has been inserted small-diameter tip and first, to a level where the larger diameter portion of the rotary body joining tool overlaps the thickened part but does not extend below the upper surface of the non-thickened surfaces of the members joined, the rotary body is rotated and moved along the joining region.