Abstract: A recombinant microorganism including a genetic modification that increases expression of a gene encoding a ferric enterobactin transporter-associated protein or a gene encoding a TonB-dependent transporter-associated protein, or a genetic modification that decreases expression of a fur gene encoding a ferric uptake regulator (Fur) protein, wherein the recombinant microorganism removes greater amounts of nitric oxide from a sample comprising nitric oxide than a same microorganism without the genetic modification

Abstract: Disclosed are a message service provision method for providing a message service via an open chat room corresponding to link information, and a message server and a terminal for executing the message service provision method. The message service provision method comprises the steps of: transmitting, to a message server, a request for issuing link information for an open chat room via a message application; receiving, from the message server, link information generated in response to the request for issuing link information; sharing the link information according to a request for sharing inputted by a user of a host terminal; and performing chatting with a user of a guest terminal participating in the open chat room by means of the shared link information; wherein the user of the guest terminal and the user of the host terminal are users who subscribed to a message service provided via the message server.

Abstract: A method for displaying a message in a messenger service by a user terminal is proposed. The method may include receiving the message from a server. The method may also include receiving a mask command for the message from the server when text information extracted from the message satisfies a preset condition. The method may further include displaying a mask message corresponding to the message in a chat room of the messenger service based on the mask command.

Abstract: Proposed is a method for providing at least one channel group by a server. The method may include in response to an interaction from a user terminal requesting creation of a channel group, creating the channel group; in response to the channel group being created. The method may also include creating a default chat channel included in the channel group. The method may further include in response to an interaction from the user terminal requesting creation of a chat channel, creating the chat channel included in the channel group.

Abstract: An MXene or a derivative thereof, on which nitrous oxide reductase is immobilized, wherein the MXene has a formula of Mn+1XnTs, wherein M is a transition metal of Groups 3, 4, 5, 6, or a combination thereof, of the Periodic Table of the Elements, X is carbon, nitrogen, or a combination thereof, T is oxide, epoxide, hydroxide, C1-C5 alkoxide, fluoride, chloride, bromide, iodide, or a combination thereof, and n is 1, 2, or 3, and s is 0, 1, or 2.

Abstract: A recombinant microorganism having enhanced ability for reducing nitrogen oxide, a composition comprising the recombinant microorganism for use in decreasing a concentration of nitrogen oxide in a sample, and a method of decreasing a concentration of nitrogen oxide in a sample using the recombinant microorganism or the composition.

Abstract: An optical system according to an embodiment comprises a first lens group, a second lens group, and a third lens group sequentially disposed along an optical axis from the object side to the sensor side, each including at least one lens, the first lens group includes a first lens, a second lens, and a third lens sequentially disposed along the optical axis in a direction from the object side to the sensor side, the second lens group includes a fourth lens and a fifth lens sequentially disposed along the optical axis in a direction from the object side to the sensor side, the third lens group includes a sixth lens, a seventh lens, and an eighth lens sequentially disposed along the optical axis from the object side to the sensor side, the second lens group and the third lens group move toward the sensor side (first mode) and move toward the object side (third mode), the third lens has negative (?) refractive power, the fourth lens has a positive (+) refractive power, the fifth lens has negative (?) refractive p

Abstract: The present disclosure relates to a thermosetting resin composition for a semiconductor package including an amine compound containing a specific functional group, a thermosetting resin, a thermoplastic resin, and an inorganic filler, and having a glass transition temperature of 230° C. or less after curing, a prepreg including the thermosetting resin composition, and a metal clad laminate including the prepreg.

Abstract: The optical system disclosed in the embodiment of the invention includes first to fourth lens groups disposed along an optical axis in a direction from an object side to a sensor side and including at least one lens, respectively, wherein the first lens group and the fourth lens group have opposite refractive powers, the second lens group and the third lens group have opposite refractive powers, positions of the first and fourth lens groups are fixed, and a position of each of the second and third lens groups is movable in a direction of the optical axis, wherein the optical system having the first to fourth lens groups is operated with magnifications according to changes in at least three modes according to a movement of each of the second lens group and the third lens group, and the following equation may satisfy: TTL/EPD_Tele<2.

Abstract: The optical system disclosed in the embodiment of the invention includes first to fourth lens groups arranged along an optical axis from an object side toward a sensor side and including each including at least one lens, wherein the first lens group has a refractive power opposite to that of the fourth lens group, the second lens group has a refractive power opposite to that of the third lens group, the first and fourth lens groups are fixed, the second and third lens groups are moved in a direction of the optical axis, each of the first and fourth lens groups includes at least one lens of a non-circular shape, the non-circular lens has a non-circular ratio (CH/CA) greater than 0.

Abstract: Provided are recombinant microorganisms having a foreign gene encoding a variant of a nitrous oxide reductase protein, a composition comprising the recombinant microorganism or the variant of a nitrous oxide reductase protein for use in removing nitrous oxide in a sample, a variant of a nitrous oxide reductase protein, and a polynucleotide encoding the variant.

Abstract: The present disclosure relates to a thermosetting resin composite having a specific thermal stress factor, and capable of implementing a low glass transition temperature, low modulus, and a low coefficient of thermal expansion, and minimizing warpage, and having excellent flowability in a prepreg or semi-cured state, and a metal clad laminate using the same.

Abstract: Provided are a recombinant microorganisms having a genetic modification that increases the expression of bacterioferritin, a composition comprising the recombinant microorganism for use in reducing a nitrogen oxide concentration in a sample, and a method of reducing a nitrogen oxide concentration in a sample.

Abstract: A recombinant microorganism of the genus Escherichia, comprises a genetic modification that increases expression of a nosZ gene encoding NosZ, which is a nitrous oxide reductase, in the recombinant microorganism, wherein the recombinant microorganism comprises a nosR gene encoding NosR, a nosD gene encoding NosD, a nosF gene encoding NosF, a nosY gene encoding NosY, and an apbE gene encoding ApbE, and wherein the nosR gene, the nosD gene, the nosF gene, the nosY gene and the apbE gene are derived from a microorganism of the genus Pseudomonas, the genus Paracoccus, or a combination thereof.

Abstract: Provided are a recombinant microorganisms having a genetic modification that increases the expression of bacterioferritin, a composition comprising the recombinant microorganism for use in reducing a nitrogen oxide concentration in a sample, and a method of reducing a nitrogen oxide concentration in a sample.

Abstract: A method of reducing a concentration of a nitrogen oxide, the method comprising: contacting a microorganism with a nitrogen oxide-containing sample to reduce the concentration of the nitrogen oxide in the sample, wherein the contacting comprises contacting the microorganism with Fe(II)(L)-NOx in a bioreactor, wherein the Fe(II)(L)-NOx is a complex in which a chelating agent, Fe2+, and NOx are chelated, wherein L is the chelating agent, and wherein NOx is a nitrogen oxide ligand.

Abstract: A method for displaying a message in a messenger service by a user terminal is proposed. The method may include receiving the message from a server. The method may also include receiving a mask command for the message from the server when text information extracted from the message satisfies a preset condition. The method may further include displaying a mask message corresponding to the message in a chat room of the messenger service based on the mask command.

Abstract: Disclosed are a message service provision method for providing a message service via an open chat room corresponding to link information, and a message server and a terminal for executing the message service provision method. The message service provision method comprises the steps of: transmitting, to a message server, a request for issuing link information for an open chat room via a message application; receiving, from the message server, link information generated in response to the request for issuing link information; sharing the link information according to a request for sharing inputted by a user of a host terminal; and performing chatting with a user of a guest terminal participating in the open chat room by means of the shared link information; wherein the user of the guest terminal and the user of the host terminal are users who subscribed to a message service provided via the message server.

Abstract: A method of providing information on a social networking service (SNS) activity to a chatroom, performed by a user terminal, includes: transmitting, to a server, an SNS request for each of a plurality of anonymous profiles created to be interlinked with an account of a user for an instant messaging service (IMS); displaying information on an SNS activity performed through a first anonymous profile selected by the user in correspondence with a chatroom in which the user participates in the IMS, from among the plurality of anonymous profiles, in the chatroom; receiving an input of changing a profile of the user, selected corresponding to the to chatroom, from the first anonymous profile to a second anonymous profile; and displaying information on an SNS activity performed through the second anonymous profile in the chatroom.