Abstract: The present disclosure provides Max and MXene using low-cost vanadium carbide instead of an expensive vanadium metal, and a method for preparing same.

Abstract: An apparatus for and a method for estimating blood pressure are provided. The apparatus for estimating blood pressure includes: a sensor configured to measure a pulse wave signal from an object; and a processor configured to obtain a mean arterial pressure (MAP) based on the pulse wave signal, configured to classify a phase of the obtained MAP according to at least one classification criterion, and to obtain a systolic blood pressure (SBP) by using an estimation model corresponding to the classified phase of the MAP among estimation models corresponding to respective phases of the MAP.

Abstract: The present disclosure provides a method for partially reducing vanadium pentoxide (V2O5) using an ammonia solution, wherein ammonia is used to convert vanadium pentoxide (V2O5) powder to ammonia vanadate (NH4VO3), which is an intermediate material, after which the ammonia vanadate is heated under normal or reduced pressure in a nitrogen or argon atmosphere and then maintained for a certain period of time to partially reduce the vanadium pentoxide and thereby produce vanadium dioxide (VO2) powder, and vanadium dioxide (VO2) powder produced thereby.

Abstract: An apparatus for estimating bio-information includes a sensor part configured to measure a pulse wave signal and a contact force of an object, while the object is in contact with the sensor part. The apparatus further includes a processor configured to extract a first feature from the measured pulse wave signal and the measured contact force, select one estimation model from a plurality of estimation models, based on a second feature of a user corresponding to the object, and estimate the bio-information, by inputting the extracted first features in the selected estimation model.

Abstract: A light emitting device includes a substrate including a roughened surface; a light emitter disposed on the substrate, which includes a first conductivity layer; and a mesa disposed on a partial region of the first conductivity layer. An ohmic electrode can be disposed on the mesa; and a contact electrode can be disposed on the first conductivity layer. The light emitting device further includes a first reflection layer; a first pad electrode and a second pad electrode; and a second reflection layer. The first insulating reflection layer covers at least a portion of the light emitter emitting structure, the ohmic electrode and the contact electrode. The second reflection layer is disposed on an opposite side of the substrate.

Abstract: A composition containing a chemokine inhibitor, a colony stimulating factor inhibitor, and an cancer immunotherapy agent, and a method for treatment of cancer, and a combination therapy are disclosed. The composition containing a CXCL12 inhibitor, a colony stimulating factor 1 (CSF1) inhibitor, and a cancer immunotherapy agent, for prevention and/or treatment of cancer, increases the infiltration and activity of CD8 cytotoxic T cells in cancers resistant to cancer immunotherapy agents, especially PD-1/PD-L1 immune checkpoint inhibitors, to effectively reduce tumor sizes and thus is useful for prevention and treatment of cancers resistant to immunotherapy agents, especially cancers overexpressing p16INK4A.

Abstract: A light emitting device includes a substrate; a first conductivity type semiconductor layer disposed on the substrate; a mesa; a transparent electrode; a contact electrode; a first insulating reflection layer; a first pad electrode and a second pad electrode; and a second insulating reflection layer. The first insulating reflection layer covers at least a portion of the light emitting structure, the transparent electrode and the contact electrode. The second insulating reflection layer is disposed on an opposite end of the substrate. The first and/or second insulating reflection layer have at least two regions which have different reflectivity properties.

Abstract: A method of screening a skin whitening agent uses the stromal cell-derived factor 1 (SDF1) promoter region, the correlation between the expression amount of the skin pigment and the expression of the SDF1 promoter is observed and thus it is expected to be available in systems for pre-screening pigmentation substances and pigment reduction materials, and the drugs screened by the method is used for treatment of skin pigment-related diseases.

Abstract: A key input device applicable to a smart mat is provided, where the key input device includes a first layer in which a plurality of row contacts are formed, a second layer in which a plurality of column contacts are formed, an insulating layer disposed between the first and second layers to form an insulating region and a current carrying region, and a processor configured to detect that at least one of a plurality of key switches formed by the plurality of row contacts and the plurality of column contacts is pressed.

Abstract: A light emitting diode chip includes a substrate; a first conductivity type semiconductor layer disposed on the substrate; a mesa; a transparent electrode; a contact electrode; a current spreader; a first insulating reflection layer; a first pad electrode and a second pad electrode; and a second insulating reflection layer. The first insulating reflection layer covers one end of the substrate, the first conductivity type semiconductor layer, the mesa, the transparent electrode. The second insulating reflection layer is disposed on an opposite end of the substrate and includes a structure of a distributed Bragg reflector (DBR).

Abstract: A negative pressure room with a safety management system according to an embodiment of the present disclosure includes an interior space being under negative pressure and is provided in a movable form, so that the negative pressure room can be constructed promptly and economically in the event of a spreading infection, thereby enabling rapid and efficient quarantine treatment and observation of patients with confirmed and suspected infections, the negative pressure room is isolated from a general ward, thereby preventing the possibility of further infection to other patients or medical staff, and real-time monitoring whether negative pressure is appropriately generated in the interior space, air quality in the interior space, and the state of an isolated patient is enabled.

Abstract: An apparatus for and a method for estimating blood pressure are provided. The apparatus for estimating blood pressure includes: a sensor configured to measure a pulse wave signal from an object; and a processor configured to obtain a mean arterial pressure (MAP) based on the pulse wave signal, configured to classify a phase of the obtained MAP according to at least one classification criterion, and to obtain a systolic blood pressure (SBP) by using an estimation model corresponding to the classified phase of the MAP among estimation models corresponding to respective phases of the MAP.

Abstract: A method of screening a skin whitening agent uses the stromal cell-derived factor 1 (SDF1) promoter region, the correlation between the expression amount of the skin pigment and the expression of the SDF1 promoter is observed and thus it is expected to be available in systems for pre-screening pigmentation substances and pigment reduction materials, and the drugs screened by the method is used for treatment of skin pigment-related diseases.

Abstract: Disclosed are electronic devices and methods for managing container-based data by the electronic devices, by generating a first container storing first personalized information, when a communication connection with a first external electronic device is established, transmitting the first personalized information so that it is stored in a second container of the first external electronic device, receiving second personalized information and storing the second personalized information in the first container, and when a communication connection with a second external electronic device is established, transmitting the second personalized information so that it is stored in a third container of the second external electronic device.

Abstract: A light emitting diode chip includes a substrate; a first conductivity type semiconductor layer disposed on the substrate; a mesa; a transparent electrode; a contact electrode; a current spreader; a first insulating reflection layer; a first pad electrode and a second pad electrode; and a second insulating reflection layer. The first insulating reflection layer covers one end of the substrate, the first conductivity type semiconductor layer, the mesa, the transparent electrode. The second insulating reflection layer is disposed on an opposite end of the substrate and includes a structure of a distributed Bragg reflector (DBR).

Abstract: A flip chip type light emitting diode chip is disclosed. The light emitting diode chip includes a substrate; a first conductivity type semiconductor layer disposed on the substrate; a mesa disposed on a partial region of the first conductivity type semiconductor layer, and including an active layer and a second conductivity type semiconductor layer; a transparent electrode; a contact electrode laterally spaced apart from the mesa; a current spreader electrically connected to the transparent electrode; a first insulating reflection layer covering the substrate; and a second insulating reflection layer disposed under the substrate, and including the distributed Bragg reflector.

Abstract: A light emitting diode including an n-type semiconductor layer, a mesa disposed on the n-type semiconductor layer and exposing a portion thereof, and including an active layer and a p-type semiconductor layer, first and second bonding pads electrically connected to the n-type and p-type semiconductor layers, respectively, and a first insulation layer at least partially disposed between the exposed portion of the n-type semiconductor layer exposed by the mesa and the second bonding pad, in which the exposed portion of the n-type semiconductor layer has a first portion having a shortest distance to the second bonding pad, the first insulation layer covers a portion of the p-type semiconductor layer disposed between the second bonding pad and the first portion of the n-type semiconductor layer, and the first insulation layer is disposed along an edge of the p-type semiconductor layer adjacent to the exposed portion of the n-type semiconductor layer.

Abstract: An apparatus for estimating bio-information includes a sensor part configured to measure a pulse wave signal and a contact force of an object, while the object is in contact with the sensor part. The apparatus further includes a processor configured to extract a first feature from the measured pulse wave signal and the measured contact force, select one estimation model from a plurality of estimation models, based on a second feature of a user corresponding to the object, and estimate the bio-information, by inputting the extracted first features in the selected estimation model.

Abstract: A light emitting diode chip includes a substrate; a first conductivity type semiconductor layer disposed on the substrate; a mesa; a transparent electrode; a contact electrode; a current spreader; a first insulating reflection layer; a first pad electrode and a second pad electrode; and a second insulating reflection layer. The first insulating reflection layer covers one end of the substrate, the first conductivity type semiconductor layer, the mesa, the transparent electrode. The second insulating reflection layer is disposed on an opposite end of the substrate and includes a structure of a distributed Bragg reflector (DBR).

Abstract: A method of receiving a call by recognizing a posture of a user in a portable terminal is provided. The method includes identifying whether a call reception event occurs, detecting a motion in which the user brings the portable terminal to an ear by using a posture detecting sensor, when the call reception event occurs, and connecting the call upon detecting the motion.