Abstract: A novel semiconductor is provided. The semiconductor includes a first component, a second component, and an instruction portion. The first component includes a first memory circuit having a function of storing first setting information in a state where power is supplied, and a second memory circuit having a function of storing the first setting information in a state where power is not supplied. The second component includes a third memory circuit having a function of storing second setting information in a state where power is supplied, and a fourth memory circuit having a function of storing the second setting information in a state where power is not supplied. The instruction portion has a function of controlling whether power is supplied to each of the first component and the second component. Each of the second memory circuit and the fourth memory circuit includes a transistor including a metal oxide in a semiconductor layer where a channel is formed.

Abstract: A semiconductor device with a novel structure is provided. The semiconductor device includes a register. The register includes a flip-flop and a plurality of data retention circuits. The flip-flop includes a first transistor in which a semiconductor layer including a channel formation region is silicon, an input terminal of the flip-flop is electrically connected to each of output terminals of the data retention circuits, and an output terminal of the flip-flop is electrically connected to each of input terminals of the data retention circuits. The data retention circuits include a second transistor in which a semiconductor layer including a channel formation region is an oxide semiconductor, and when the second transistor is in a non-conduction state, the data retention circuits have a function of retaining a potential corresponding to data corresponding to a plurality of tasks.

Abstract: A method for preventing or treating porcine epidemic diarrhea, the method including: administering a live vaccine of a porcine epidemic diarrhea virus and an adjuvant to a pig through oral administration or nasal administration; and administering an inactivated vaccine of the porcine epidemic diarrhea virus and an adjuvant to the pig through intramuscular administration.

Abstract: A method for preventing or treating porcine epidemic diarrhea, the method including: administering a live vaccine of a porcine epidemic diarrhea virus and an adjuvant to a pig through oral administration or nasal administration; and administering an inactivated vaccine of the porcine epidemic diarrhea virus and an adjuvant to the pig through intramuscular administration.