Abstract: Proposed is a method for product recommendation by a server. The method may include receiving a gift recommendation request from a first user terminal for a second user, checking available basic information of the second user, and determining a first recommendation information based on the basic information, wherein the first recommendation information comprises a first recommendation reason and at least one product related to the first recommendation reason. The method may also include determining a second recommendation information not based on the basic information, wherein the second recommendation information comprises a second recommendation reason and at least one product related to the second recommendation reason. The method may further include providing recommendation information comprising the first and second recommendation information to the first user terminal. The first recommendation information may be prioritized for display over the second recommendation information.

Abstract: A semiconductor memory device with an improved electric characteristic and reliability is provided. The semiconductor memory device including a substrate including an active region defined by device separation film, the active region including a first part and second parts, the second parts being on two opposite sides of the first part, respectively a bit line extending on the substrate and across the active region, and a bit line contact between the substrate and the bit line and connected to the first part of the active region may be provided. The bit line contact includes a first ruthenium pattern, and a width of upper surface of the first ruthenium pattern is smaller than a width of bottom surface of the first ruthenium pattern.

Abstract: The present invention relates to an antibody against resistin and use thereof and, more specifically, to a resistin antibody or antigen-binding fragment thereof that inhibits the activity of resistin by blocking resistin/CAP1 binding, a nucleic acid encoding same, a vector comprising the nucleic acid, a cell transformed with the vector, a method for preparing the antibody or antigen-binding fragment thereof, an antibody-drug conjugate comprising the antibody or antigen-binding fragment thereof, a bi- or multi-specific antibody, a chimeric antigen receptor, an immune cell containing same, and a composition for the prevention or treatment of diseases that can be treated through the inhibition of resistin activity, the composition comprising same.

Abstract: The present application provides a polyamic acid aqueous solution composition prepared of a polyimide, wherein the composition enables the polymerization of hydrophobic-based monomers into a polyamic acid in water and is improved in transparency, eco-friendliness, storage stability, and the like when cured.

Abstract: A method and apparatus for a payment service are disclosed. A method of operating a server providing a payment service includes obtaining country-related information of a terminal connected to the payment service. The country-related information of a terminal may include a country code the number of the terminal is assigned to. The method includes providing an international credit card as an option for a payment method to the terminal based on the country-related information. The method includes checking whether an account corresponding to the terminal is authenticated. The method includes determining a default value of a payment method corresponding to the account based on whether the account is authenticated.