Abstract: Disclosed is a compound having an acceleration effect on the secretion of human ?-defensin, LL-37, which is a human-derived anti-microbial peptide, a method for preparing same, and a composition for accelerating the secretion of anti-microbial peptide having same as an active ingredient, and the compound and the composition using same of the present invention enhance the anti-microbial effect and the immunity control effect that the anti-microbial peptide has in the body by accelerating the secretion of the anti-microbial peptide in the body.

Abstract: An indoor user positioning method including storing user information on a user terminal and user feature information detected from a feature detection device in a central server, detecting the position of the user terminal periodically and storing the detected position in a database, detecting by a motion recognition device attribute information on a user at the front thereof and transmitting the detected attribute information to the central server, extracting user terminals corresponding to the position of the user that the motion recognition device recognizes from the user terminals stored in the database in order to select target users, and comparing the user feature information on the target users stored in the database with the user attribute information that the motion recognition device transmits in order to specify a user at the front of the motion recognition device.

Abstract: An indoor user positioning method including storing user information on a user terminal and user feature information detected from a feature detection device in a central server, detecting the position of the user terminal periodically and storing the detected position in a database, detecting by a motion recognition device attribute information on a user at the front thereof and transmitting the detected attribute information to the central server, extracting user terminals corresponding to the position of the user that the motion recognition device recognizes from the user terminals stored in the database in order to select target users, and comparing the user feature information on the target users stored in the database with the user attribute information that the motion recognition device transmits in order to specify a user at the front of the motion recognition device.

Abstract: Disclosed herein is the use of a non-natural compound represented by the following formula 1 as an activator of the peroxisome proliferator activated receptor-? (PPAR-?) which shows an anti-inflammatory effect on inflammatory skin diseases. The PPAR-? activator increases the expression of PPAR-? in the skin to enhance various physiological effects of PPAR-?, that is, the anti-inflammatory effect caused by inhibiting the activity of transcription factors such as the nuclear factor ?K (NF-?K) that induces inflammatory reactions, the effect of improving the epidermal permeability barrier function of the skin, and the effect of promoting the terminal differentiation of epidermal keratinocytes. Thus, the PPAR-? activator is useful for the treatment, alleviation or amelioration of skin diseases such as acne, seborrheic dermatitis, viral skin diseases, urticaria, pruritus, viral infectious diseases and contact dermatitis.