Abstract: A server providing a service is provided. The server includes a communicator, a memory configured to store computer-executable instructions, and a processor configured to execute the instructions by accessing the memory. The instructions may be configured to cause the server to transmit, to a user terminal, a display command of a graphic representation requesting affiliation authentication from a user based on at least one of search information of the user or location information of the user collected from the user terminal executing a map application and to transmit an offer command of a process for affiliation authentication of a user account to the user terminal in response to a user input for a graphic representation requesting the affiliation authentication.

Abstract: The present invention relates to a plant-based COVID-19 variant recombinant spike protein expression vector, and a recombinant protein using the expression vector, wherein a plant expression system is used such that the recombinant protein does not have the disadvantages of animal-derived recombinant proteins and exhibits an excellent SARS coronavirus 2 prevention and treatment effect, and thus can be effectively utilized as a safe composition for preventing and treating COVID-19.

Abstract: A method of providing a special effect includes, in response to the selection of background music to be applied to a video, applying the background music and a special effect associated with the background music to the video based on a first feature extracted from the background music and a second feature extracted from the video.

Abstract: A method of providing a special effect includes, in response to the selection of background music to be applied to a video, applying the background music and a special effect associated with the background music to the video based on a first feature extracted from the background music and a second feature extracted from the video.

Abstract: Disclosed herein is an insect proof or insecticidal composition for the conservation of cultural properties against termites, comprising an extract of Asarum sieboldii as an active ingredient. Based on a methanol extract of Asarum sieboldii or a hexane fraction from the methanol extract, the composition is environmentally friendly and non-toxic to humans and animals. Also, because of its excellent insecticidal activity against termites, the composition can be used to protect wooden structures and cultural properties from termite damage, which is a great threat to the life of wooden structures and cultural properties, without toxicity to humans and animals.