Abstract: Proposed is a method in which a server presents content through a chat room. The method may include acquiring information about a keyword or theme of the content, information about a condition for presenting the content, and information about the chat room, wherein the chat room is related to the keyword or theme and a plurality of users are able to participate in the chat room. The method may also include providing the chat room to a user terminal in association with the information about the keyword or theme of the content. The method may further include searching for the content in a content pool based on the keyword or theme, and when the condition for presenting the content is satisfied, presenting at least some items of the searched content to the user terminal through the chat room.

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; a quantum dot layer disposed between the first electrode and the second electrode and including a plurality of quantum dots; optionally, an electron transport layer between the quantum dot layer and the second electrode; wherein the quantum dot layer is configured to emit first light. The electroluminescent device further includes a first layer including an inorganic nanoparticle between the quantum dot layer and the first electrode, and inorganic nanoparticle includes a metal chalcogenide including a Group II metal and a chalcogen element. The inorganic nanoparticle has a size of greater than or equal to about 0.5 nanometers and less than or equal to about 30 nanometers.

Abstract: A robot control system and a method may be operated in a microservices architecture (MSA)-based control environment. The robot control system includes an application programming interface (API) gateway that connects an authentication server for authenticating a robot, a management server for managing the robot, and an operation server for operating the robot in a Hyper Text Transfer Protocol (HTTP) communication method and an administrator terminal that communicates with the robot through WebRTC (Web Real-Time Communication).

Abstract: An electronic device according to various embodiments of the present invention may comprise: a housing comprising a first surface facing in a first direction and a second surface facing in a second direction that is opposite to the first direction, the first surface comprising an at least partially transparent part and at least one opening formed adjacent to the at least partially transparent part; a camera positioned inside the housing, the camera comprising an image sensor facing in the first direction through the at least partially transparent part of the housing; and an acoustic component arranged between the first surface and the second surface, the acoustic component comprising a vibration plate configured to generate a sound such that the same moves in at least one direction selected from the first and second directions, a first passage formed in a third direction that is substantially perpendicular to the first direction such that the generated sound passes through the same, and a second passage forme

Abstract: The present invention relates to a pharmaceutical preparation containing an active ingredient and a release-controlling agent for adjusting the release of the active ingredient, in which the active ingredient is at least one selected from among mirabegron and a pharmaceutically acceptable salt thereof, and the release-controlling agent is a hydrogel-forming polymer, the hydrogel-forming polymer being at least one selected from among polyethylene oxide, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, sodium carboxymethylcellulose, and hydroxyethyl cellulose and having an average molecular weight ranging from 100,000 to 8,000,000. The present invention is capable of suppressing the generation of impurities therein and of effectively controlling the release of at least one selected from among mirabegron and a pharmaceutically acceptable salt thereof.

Abstract: The present invention relates to a pharmaceutical preparation containing an active ingredient and a release-controlling agent for adjusting the release of the active ingredient, in which the active ingredient is at least one selected from among mirabegron and a pharmaceutically acceptable salt thereof, and the release-controlling agent is a hydrogel-forming polymer, the hydrogel-forming polymer being at least one selected from among polyethylene oxide, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, sodium carboxymethylcellulose, and hydroxyethyl cellulose and having an average molecular weight ranging from 100,000 to 8,000,000. The present invention is capable of suppressing the generation of impurities therein and of effectively controlling the release of at least one selected from among mirabegron and a pharmaceutically acceptable salt thereof.