Abstract: A secondary battery comprises an electrode assembly, a can, and an insulator. The electrode assembly includes a first electrode, a separator, and a second electrode alternately stacked and wound. The can has an accommodation part accommodating the electrode assembly therein, and the can comprises a first can and a second can having cylindrical shapes open in a direction facing each other. The insulator insulates an overlapping portion between the first can and the second can. The first can is electrically connected to the first electrode, and the second can is electrically connected to the second electrode. The insulator has a short-circuit induction through-part defined by a through-hole or a cutoff line, such that a short circuit occurs between the first can and the second can through the short-circuit induction through-part when it is deformed in shape as heat or a pressure is applied to contract or expand the insulator.

Abstract: An operating method of an electronic device is provided. The method includes determining whether a present point in time corresponds to a predetermined period or event, obtaining a content associated with the predetermined period or event, and providing the content as at least a part of a user interface displayed on a user interface screen of the electronic device.

Abstract: The present invention relates to a pharmaceutical composition for activating dendritic cells having polysaccharides from Angelica gigas Nakai as valid component. The angelan, polysaccharides separated from Angelica gigas Nakai, can improve the revelation of surface molecule of dendritic cells, the secret of cytokine of dendritic cells, the proliferation capability of T cells of dendritic cells, and the generation of cytokine such as IL-2.