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한혜성,정국진,이해웅,심주현,서성준,박귀영 대한피부과학회 2022 Annals of Dermatology Vol.34 No.3
Acne vulgaris is a universal skin disease with multifactorial pathogenesis. Although an ex- tensive range of treatment options exist for acne, a substantial number of patients are still struggling for an optimal treatment option due to the side effects or contraindications to the conventional acne treatment. Negative air ions (NAIs) are electrically charged molecules that naturally exist in the atmosphere. Since they are natural component of air, there are no known side effects and contraindications to their application. Furthermore, among the identified benefits of NAIs, certain mechanisms are related to acne pathogenesis, allowing them to be attractive candidates for acne treatment. Here, we describe three patients with acne who showed considerable clinical improvement after NAI therapy. All of the patients had failed to tolerate traditional acne treatment options. In all three cases, considerable im- provement was observed in acne severity and the number of total lesions. Based on the three cases and a review of literature underlying the effects of NAIs, we suggest that NAIs may be a safe and effective alternative therapeutic option for acne vulgaris.
김희은,안혜성,임미희,심명화 한국재무관리학회 2023 財務管理硏究 Vol.40 No.2
This study examines how family controls affect firm value by focusing on the agency problem of family firms in Korea. Compared with firms with professional CEOs, we find that firms run by family CEOs have significantly lower firm value. However, the negative effect of family CEOs on firm value can be mitigated by recent improvements in ESG performance. These findings suggest that ESG engagement can serve as an effective mechanism to control the pursuit of private benefit by family owners, which can alleviate the agency problem between controlling families and minority shareholders.