• 제목/요약/키워드: Young-Hun Kim

검색결과 4,605건 처리시간 0.05초

The Inhibitory Effect of Prunioside A Acyl Derivatives on NO Production in RAW 264.7 Cell

  • Lee, Woo-Yiel;Kim, Byung-Hee;Lee, Young-Hang;Choi, Han-Gil;Jeon, Byung-Hun;Jang, Seon-Il;Kim, Young-Jun;Chung, Hun-Taeg;Kim, Young-Soon;Chai, Kyu-Yun
    • Bulletin of the Korean Chemical Society
    • /
    • 제25권10호
    • /
    • pp.1555-1558
    • /
    • 2004
  • Prunioside A is a unique, highly oxidized monoterpene glycoside isolated from the methanol extract of Spiraea prunifolia var. Simpliciflora's root. The ester derivatives were synthesized from the hydrolyzed compounds of prunioside A by ${\beta}$-glucosidase. The derivatives showed suppressive effects on the generation of nitric oxide in murine machrophage-like RAW 264.7 cells stimulated by lipopolysaccharide and interferon- ${\gamma}$.

Accuracy of periodontal probe visibility in the assessment of gingival thickness

  • Kim, Young-Sung;Park, Ji-Sun;Jang, Young-Hun;Son, Jung-Hun;Kim, Won-Kyung;Lee, Young-Kyoo;Kim, Su-Hwan
    • Journal of Periodontal and Implant Science
    • /
    • 제51권1호
    • /
    • pp.30-39
    • /
    • 2021
  • Purpose: The present study was undertaken to examine whether periodontal probe visibility (PV) accurately reflects gingival thickness (GT) and to identify factors affecting PV using cluster and multivariate analyses. Methods: The clinical characteristics of the maxillary central incisors (n=90 subjects) were examined. Clinical photographs, sex, PV, probing depth, gingival width, papilla height, GT as measured with an ultrasonic device, and the ratio of crown width to crown length were recorded. Multivariate analysis, using multinomial baseline-category logistic regression, was used to identify factors predictive of PV. Cluster analysis was used to identify gingival biotypes. Results: In the multivariate analysis, sex was the only significant predictor of PV (odds ratio, 6.48). Two clusters of subjects were created based on morphometric parameters. The mean GT among cluster A subjects was significantly lower than that among cluster B subjects (P=0.015). No significant difference was found between cluster A and B subjects in terms of PV score (P=0.583). Conclusions: Periodontal PV was not associated with GT as measured directly using an ultrasonic device. Sex was a highly significant predictor of periodontal PV. GT was found to be correlated with morphological characteristics of the periodontium.

웹 애플리케이션 취약성 수치화 프레임워크 연구 동향

  • 조성영;전상훈;임채호;김세헌
    • 정보보호학회지
    • /
    • 제22권3호
    • /
    • pp.48-55
    • /
    • 2012
  • 웹 애플리케이션의 취약점을 이용한 공격으로 인한 보안 사고가 급증함에 따라, 웹 애플리케이션의 취약점을 진단하고 취약성을 수치화하는 프레임워크가 개발 및 제시되고 있다. 이 논문에서는 현재 웹 애플리케이션의 취약성을 수치화할 수 있는 CVSS와 CWSS와 같은 여러 가지 프레임워크 연구를 분석하고, 현재까지 제시된 취약성 수치화 프레임워크가 가지고 있는 문제점을 제시함으로써 향후 보완해야 할 방향을 제시한다.

Quality Property of Red Pepper Powder sold in Gyeongnam

  • Chung, Jong-Hwa;Bae, Hwang-Chan;Ha, Gang-Ja;Cha, Hui-Geun;Chung, Ho-Hyek;Kim, Young-Rok;Kim, Young-Hun;Kim, Hyun
    • 한국생명과학회:학술대회논문집
    • /
    • 한국생명과학회 2005년도 국제학술심포지움 The 44th Annual Meeting of Korean Society for Life Science
    • /
    • pp.99-99
    • /
    • 2005
  • PDF