A retention system for a wear member may have a flange having a mounting slot defined between a first inner wall and a second inner wall, which are parallel to an axis. A liquid crystal display device of the present invention includes: a first substrate which includes a pixel electrode ; a second substrate which includes a counter electrode ; and a liquid crystal layer and a spacer which are provided between the first substrate and the second substrate. Cookware can be stored onto the assembly in a hanging position. The sections include an upturned portion extending perpendicularly outwardly from the duct wall, a second portion bent rearwardly from the outer end of the first portion, a third return portion, and an inner wall portion extending from the outer end of the third portion and forming a L-shaped portion. In one embodiment of the present invention, a replication-defective dengue virus that is replication-defective in arthropods is contemplated for use as a vaccine.