Abstract: The present application pertains to a sialyloligosaccharide for augmenting the stemness of stem cells and a use thereof and provides a composition for augmenting stemness of stem cells, a method of culturing stem cells in a medium containing a sialyloligosaccharide, a method of augmenting stemness of stem cells, a stem cell with augmented stemness, obtained by the method, and a cell therapy composition including the stem cells as an active ingredient. The composition or the method according to one or more embodiments may suppress the aging of stem cells and may maintain and augment stemness.

Abstract: A method of operating an electronic device includes: executing a market providing a transaction service which enables trading of items of a first game; based on status information on a first user in the first game, displaying a first execution screen through which at least one item of the first game is purchasable; receiving an input for selecting a first item through the first execution screen or an execution screen generated based on the first execution screen; and when an input for purchasing the first item is received, purchasing the first item.