Abstract: Disclosed is a method of messaging service. The method includes receiving, by at least one server, a chat request for creating a chatroom directed to a transaction that a user has entered into with a first entity. The method further includes creating, by the at least one server in response to receipt of the chat request, a first chatroom that is directed to the transaction and is accessible by the first entity and the user on a messaging application installed in a computing terminal such that the first entity sends one or more messages containing information about the transaction to the user via the first chatroom.

Abstract: A printed circuit board includes a first insulating layer; a first wiring layer disposed on one surface of the first insulating layer and including a pad; a second insulating layer disposed on the one surface of the first insulating layer and covering the first wiring layer; a second wiring layer disposed on one surface of the second insulating layer and including a metal pattern; a third insulating layer disposed on the one surface of the second insulating layer and covering the second wiring layer; and a cavity extending through each of the second and third insulating layers, and having a bottom surface and a sidewall respectively exposing the pad of the first wiring layer and the metal pattern of the second wiring layer. The cavity includes a non-through groove in the one surface of the first insulating layer.

Abstract: The present invention relates to a composition for preventing, improving, or treating inflammatory disease containing isookanin or a salt thereof as an active ingredient. The composition containing the isookanin or salt thereof as an active ingredient according to the present invention has no skin irritation and cytotoxicity, and thus has excellent safety for the human body. In addition, it has excellent effects on the inhibition of JAK1 activity, kallikrein-5 activity, TLR-2 activation, COX-2 expression and activity, prostaglandin PGE2 production, and PGE2-induced angiogenesis, and thus is very effective in preventing, alleviating and treating inflammatory disease. Accordingly, the composition containing the isookanin or salt thereof as an active ingredient according to the present invention may be useful as an active ingredient in a cosmetic composition, a pharmaceutical composition, a composition for skin application and a quasi-drug composition for preventing, alleviating or treating inflammatory disease.

Abstract: Provided is a positive electrode slurry for a positive electrode for a lithium secondary battery, which is manufactured using the same. The positive electrode slurry is composed of a two-liquid type composition, contains the positive electrode additive represented by Chemical Formula 1 (LipCo(1-q)M1qO4), which is used as an irreversible additive, in a large amount, and contains the first liquid whose viscosity is adjusted within a specific range (i.e. 5,000 to 8,000 cps). Thus, not only is there an advantage in that the dispersibility and workability of the positive electrode additive are excellent, but also since it is possible to suppress side reactions while minimizing the loss of the positive electrode additive contained in the positive electrode slurry, the state stability of the positive electrode slurry can be improved, and thus the electrical properties of the positive electrode manufactured using the positive electrode slurry are excellent.

Abstract: An electrical stimulation system according to an embodiment may comprise: a catheter having a long and thin tubular shape; an electrode disposed at one end of the catheter and inserted into a target portion; an electrical stimulator for generating electrical stimulation to be applied onto the target portion by the electrode; and a control part for controlling an electrical pulse of the electrical stimulator to change the electrical stimulation applied onto the target portion, wherein the electrode applies electrical stimulation in a state where a distal end of the electrode is enlarged and fixed to a target portion.

Abstract: Disclosed are an organic optoelectronic device includes an anode and a cathode facing each other and an organic layer disposed between the anode and the cathode, wherein the organic layer includes at least one of a hole injection layer, a hole transport layer, a light emitting layer, and an electron transport layer, and the light emitting layer includes a first host, a second host, and a phosphorescent dopant represented by Chemical Formula 4, and a display device including the same.

Abstract: The present disclosure relates to an isolated anti-FcRN antibody, which is an antibody binding to FcRN (stands for neonatal Fc receptor, also called FcRP, FcRB or Brambell receptor) that is a receptor with a high affinity for IgG or a fragment thereof, a method of preparing thereof, a composition for treating autoimmune disease, which comprises the antibody, and a method of treating and diagnosing autoimmune diseases using the antibody. The FcRn-specific antibody according to the present disclosure binds to FcRn non-competitively with IgG to reduce serum pathogenic auto-antibody levels, and thus can be used for the treatment of autoimmune diseases.

Abstract: The present disclosure is a composition for a semiconductor process applied to a polishing process of a semiconductor wafer and, more specifically, to a semiconductor process involving a polishing process of a semiconductor wafer, wherein the composition includes abrasive particles, and the zeta potential of the abrasive particles is ?50 mV to ?10 mV at a pH of 6, and the zeta potential change rate represented by Equation 1 below is 6 mV to 30 mV: [Equation 1] Zeta potential change rate (mV/pH)=|(Z6?Z5)/(p6?p5)| where p6 denotes pH 6, p5 denotes pH 5, Z6 denotes a zeta potential at the pH 6, and Z5 denotes a zeta potential at the pH 5.

Abstract: Disclosed are an ink composition for an electrophoresis apparatus including (A) a semiconductor nanorod; and (B) a compound represented by Chemical Formula 1, and a display device manufactured using the ink composition for an electrophoresis apparatus.

Abstract: The present invention relates to a secondary battery. The secondary battery includes an electrode assembly in which electrodes and separators are alternately stacked to be wound, a cylindrical can comprising an accommodation part, in which the electrode assembly is accommodated, the can having an opening, and a cap assembly configured to cover the opening. The cap assembly includes a safety vent comprising a notching part that is ruptured when an internal pressure of the battery increases, the notching part has a circular shape in a plan view, the electrode assembly comprises an electrode tab connected to each of the electrodes, the safety vent is connected to the electrode tab and an external terminal, wherein the electrode tab and the external terminal are connected to different sides of an inner side and an outer side with respect to the notching part in the safety vent in the plane view.

Abstract: Disclosed are a compound for an organic optoelectronic device represented by Chemical Formula 1, a composition for an organic optoelectronic device, an organic optoelectronic device including the same, and a display device. Details of Chemical Formula 1 are the same as defined in the specification.

Abstract: A capacitor includes a lower electrode including a first metal material and having a first crystal size in a range of a few nanometers, a dielectric layer covering the lower electrode and having a second crystal size that is a value of a crystal expansion ratio times the first crystal size and an upper electrode including a second metal material and covering the dielectric layer. The upper electrode has a third crystal size smaller than the second crystal size.

Abstract: A compound and an organic optoelectronic device, the compound being represented by Chemical Formula 1-3a-I or Chemical Formula 1-4a-I:

Abstract: Disclosed are an organic alloy for an organic optoelectric device that is an organic alloy of at least two kinds of organic compounds, the at least two kinds of organic compounds includes a first organic compound and a second organic compound, a difference between evaporation temperatures of the first organic compound and the second organic compound is less than or equal to about 20° C. at less than or equal to about 10?3 torr, and a light emitting wavelength of the organic alloy is different from light emitting wavelengths of the first organic compound, the second organic compound, and a simple mixture of the first organic compound and the second organic compound, and an organic optoelectric device and a display device including the organic alloy.

Abstract: The present invention relates to a composition for an organic optoelectronic diode, comprising a first compound for an organic optoelectronic diode; and a second compound for an organic optoelectronic diode, and an organic optoelectronic diode and a display device including the same.

Abstract: A printed circuit board includes: an insulating member; a first wiring layer disposed in the insulating member, and including first and second pattern layers spaced apart from each other based on a thickness direction of the printed circuit board; and a second wiring layer disposed in the insulating member, and spaced apart from the first pattern layer over the first pattern layer based on the thickness direction. Based on the thickness direction, an insulation distance between the first pattern layer and the second pattern layer is smaller than an insulation distance between the first pattern layer and the second wiring layer, and each of the first and second pattern layers is thinner than the second wiring layer.

Abstract: A printed circuit board includes: a wiring substrate including a plurality of insulating layers, a plurality of wiring layers, and a plurality of via layers; and a bridge embedded in the wiring substrate and having a plurality of connection pads thereon. An uppermost wiring layer of the plurality of wiring layers includes a plurality of bump pads connected to the plurality of connection pads, and a pitch between at least two adjacent connection pads of the plurality of connection pads is larger than a pitch between at least two adjacent ones of the plurality of bump pads.

Abstract: A printed circuit board includes a first insulating layer having a through cavity and containing an insulating material. A length between one side surface and the other side surface opposite to the one side surface of the through cavity is greater than a thickness of the first insulating layer, and the first insulating layer includes a recess located in each of an upper edge and a lower edge of the one side surface of the through cavity.

Abstract: The present invention relates to a pidolate salt and malate salt of a compound represented by a formula 1 with an excellent liquid-phase stability, solid-phase stability, water solubility, precipitation stability and hygroscopicity all together as a compound for preventing and treating diseases mediated by an acid pump antagonistic activity, as well as a method for preparing the same.

Abstract: Provided are a compound represented by specific Chemical Formula, an antireflection film including the same and a display device including the antireflection film.