Abstract: Disclosed are an electronic device and a method for managing a specific absorption rate (SAR). In the present disclosure, even if an antenna for second communication is activated while the electronic device transmits/receives wireless signals of a plurality of frequency bands for first communication, an increase in an SAR value by frequency overlapping can be reduced or suppressed.

Abstract: Disclosed are an electronic device and a method for managing a specific absorption rate (SAR). In the present disclosure, even if an antenna for second communication is activated while the electronic device transmits/receives wireless signals of a plurality of frequency bands for first communication, an increase in an SAR value by frequency overlapping can be reduced or suppressed.

Abstract: The present disclosure provides an electronic device and a method of operating an electronic device. The electronic device includes a housing; a wireless communication circuit positioned inside the housing; a battery positioned inside the housing; a display exposed through a part of the housing; and a processor positioned inside the housing and electrically connected to at least one of the wireless communication circuit, the battery, and the display, wherein the processor is configured to collect at least one piece of state information that indicates a state of a user, determine at least one piece of specific absorption rate (SAR) characteristic information, which is related to a SAR, based on collected state information, confirm communication power information corresponding to the determined at least one piece of SAR characteristic information, and adjust communication power of the wireless communication circuit based on confirmed communication power information.

Abstract: An HA-protein conjugate in which an HA-aldehyde derivative, in which an aldehyde group is introduced to a hyaluronic acid or a salt thereof, is conjugated to the N-terminus of a protein, and a method for preparing the same are provided. The HA-protein conjugate includes a protein drug exhibiting an excellent bioconjugation efficiency and long-term medicinal effects, and has excellent protein drug activities since the hyaluronic acid is specifically conjugated to the N-terminus of the protein. Also, since liver-targeting properties of the hyaluronic acid can be freely controlled by changing an aldehyde substitution rate of the HA-aldehyde derivative, the HA-protein conjugate can be effectively used as a protein drug for treating liver diseases, and also be useful in enabling long-term medicinal effects of a protein drug required to bypass the liver. Accordingly, the HA-protein conjugate can be effectively used for a drug delivery system of proteins.

Abstract: An isolation structure of a semiconductor, a semiconductor device having the same, and a method for fabricating the isolation structure are provided. An isolation structure of a semiconductor device may include a trench formed in a substrate, an oxide layer formed on a bottom surface and an inner sidewall of the trench, a filler formed on the oxide layer to fill a part of inside of the trench, and a fourth oxide layer filling an upper portion of the filler of the trench to a height above an upper surface of the trench, an undercut structure being formed on a boundary area between the inner sidewall and the oxide layer.

Abstract: An isolation structure of a semiconductor, a semiconductor device having the same, and a method for fabricating the isolation structure are provided. An isolation structure of a semiconductor device may include a trench formed in a substrate, an oxide layer formed on a bottom surface and an inner sidewall of the trench, a filler formed on the oxide layer to fill a part of inside of the trench, and a fourth oxide layer filling an upper portion of the filler of the trench to a height above an upper surface of the trench, an undercut structure being formed on a boundary area between the inner sidewall and the oxide layer.

Abstract: Provided is a method of separating cellular components, the method including: a) contacting a guest compound-bound reactive compound with cells; b) lysing the cells; c) adding a host compound-bound solid phase to a solution including the lysates of the cells to prepare a mixture; d) separating binding pairs of the guest compound bound to cellular components and the host compound bound to the solid phase from the mixture, and purifying the binding pairs; and e) separating the cellular components from the binding pairs, wherein the guest compound-bound reactive compound is obtained through a covalent bond between a reactive compound and a guest compound represented by Formula 2 below guest, the host compound-bound solid phase is obtained through a covalent bond between a solid phase and a host compound represented by Formula 1 below, and the reactive compound includes at least one selected from the group consisting of a biomolecule, N-hydroxysuccimide, an antigen, an antibody, an aptamer, folic acid, transferri

Abstract: A semiconductor device and a manufacturing method thereof are provided. The semiconductor device includes: a deep trench in a substrate; a sidewall insulating film on a side surface of the deep trench; an interlayer insulating film on the sidewall insulating film; and an air gap in the interlayer insulating film.

Abstract: An HA-protein conjugate in which an HA-aldehyde derivative, in which an aldehyde group is introduced to a hyaluronic acid or a salt thereof, is conjugated to the N-terminus of a protein, and a method for preparing the same are provided. The HA-protein conjugate includes a protein drug exhibiting an excellent bioconjugation efficiency and long-term medicinal effects, and has excellent protein drug activities since the hyaluronic acid is specifically conjugated to the N-terminus of the protein. Also, since liver-targeting properties of the hyaluronic acid can be freely controlled by changing an aldehyde substitution rate of the HA-aldehyde derivative, the HA-protein conjugate can be effectively used as a protein drug for treating liver diseases, and also be useful in enabling long-term medicinal effects of a protein drug required to bypass the liver. Accordingly, the HA-protein conjugate can be effectively used for a drug delivery system of proteins.

Abstract: An isolation structure of a semiconductor, a semiconductor device having the same, and a method for fabricating the isolation structure are provided. An isolation structure of a semiconductor device may include a trench formed in a substrate, an oxide layer formed on a bottom surface and an inner sidewall of the trench, a filler formed on the oxide layer to fill a part of inside of the trench, and a fourth oxide layer filling an upper portion of the filler of the trench to a height above an upper surface of the trench, an undercut structure being formed on a boundary area between the inner sidewall and the oxide layer.

Abstract: Provided is an apparatus and method for executing a menu in a portable terminal, which makes it possible to conveniently execute an earphone-aided menu in a portable terminal. An apparatus for executing a menu in a portable terminal includes an earphone connection detecting unit and a control unit. The earphone connection detecting unit is configured to detect the connection of an earphone to the portable terminal. The control unit is configured to display earphone-aided menus in a pop-up window when the earphone is connected to the portable terminal.

Abstract: Provided is a method of separating cellular components, the method including: a) contacting a guest compound-bound reactive compound with cells; b) lysing the cells; c) adding a host compound-bound solid phase to a solution including the lysates of the cells to prepare a mixture; d) separating binding pairs of the guest compound bound to cellular components and the host compound bound to the solid phase from the mixture, and purifying the binding pairs; and e) separating the cellular components from the binding pairs, wherein the guest compound-bound reactive compound is obtained through a covalent bond between a reactive compound and a guest compound represented by Formula 2 below guest, the host compound-bound solid phase is obtained through a covalent bond between a solid phase and a host compound represented by Formula 1 below, and the reactive compound includes at least one selected from the group consisting of a biomolecule, N-hydroxysuccimide, an antigen, an antibody, an aptamer, folic acid, transferri