• Korean journal of communication and information
• /
• v.36
• /
• pp.287-323
• /
• 2006

This study attempted to find out that organizational culture and organizational support are the main factors of an effect on team, a kind of making unit of broadcasting programming, commitment. And especially this research tried out that each organizational culture type had an effect differently on team commitment using of Linear Structural Equation Modeling(LISREL). In order to empirically test to the research model, data were collected by 280 terrestrial Broadcasting PD in Seoul. Result showed that each organizational culture has a differential influence on the path and effect of organizational support and team commitment. The educational system and production back up of the Organizational support system have not enough to support and promote the team commitment except reward system. As a consequence, Broadcasting organization make a strategy considering of dominant organizational culture type.

• Laboraroty Animal Research
• /
• v.33 no.2
• /
• pp.76-83
• /
• 2017

Chronic obstructive pulmonary diseases (COPD) is an important disease featured as intense inflammation, protease imbalance, and air flow limitation and mainly induced by cigarette smoke (CS). In present study, we explored the effects of $Pycnogenol^{(R)}$ (PYC, pine bark extract) on pulmonary fibrosis caused by CS+lipopolysaccharide (LPS) exposure. Mice were treated with LPS intranasally on day 12 and 26, followed by CS exposure for 1 h/day (8 cigarettes per day) for 4 weeks. One hour before CS exposure, 10 and 20 mg/kg of PYC were administered by oral gavage for 4 weeks. PYC effectively reduced the number of inflammatory cells and proinflammatory mediators caused by CS+LPS exposure in bronchoalveolar lavage fluid. PYC inhibited the collagen deposition on lung tissue caused by CS+LPS exposure, as evidenced by Masson's trichrome stain. Furthermore, transforming growth $factor-{\beta}1$ ($TGF-{\beta}1$) expression and Smad family member 2/3 (Smad 2/3) phosphorylation were effectively suppressed by PYC treatment. PYC markedly reduced the collagen deposition caused by CS+LPS exposure, which was closely involved in $TGF-{\beta}1$/Smad 2/3 signaling, which is associated with pulmonary fibrotic change. These findings suggest that treatment with PYC could be a therapeutic strategy for controlling COPD progression.

• The Korea Journal of Herbology
• /
• v.24 no.4
• /
• pp.39-47
• /
• 2009

Objectives : Hwangnyeonhaedok-tang (Huanglian Jiedu Tang; HHT) has been widely used for purging' 'fire' and lessening virulence of any pathogenic organism. However it has been rarely conducted to evaluate the immuno-biological activity. In this study, we evaluated anti-inflammatory effects of HHT in LPS-activated Raw264.7 cells. Methods : Cells were treated with $1\;{\mu}g/ml$ of LPS 1 h prior to the addition of HHT. Cell viability was measured by MTT assay. The production of NO was determined by reacting cultured medium with Griess reagent. PGE2 and proinflammatory cytokines were detected by ELISA. Expression of iNOS, COX-2, $I{\kappa}B{\alpha}$ and NF-${\kappa}B$ were analyzed by immunoblot analysis. Results : All three doses of HHT (0.03, 0.10 and 0.30 mg/ml) had no significant cytotoxicity during the entire experimental period. The levels of NO and PGE2 were dramatically augmented by LPS compared to control. However, HHT extract dose-dependently reduced these increases. Expression of iNOS and COX-2 protein were also decreased by treatment with HHT extract. Furthermore, HHT extract significantly reduced the nuclear translocation of NF-${\kappa}B$ which is critical in regulating inflammation through transcription of iNOS and COX-2. In addition, HHT extract reduced the elevated production of inflammatory cytokines including TNF-$\alpha$, IL-$1{\beta}$ and IL-6. Conclusions : The results in this study demonstrate that HHT extract exerts anti-inflammatory activities through the inhibition of NO, PGE2 and proinflammatory cytokines production via the suppression of NF-${\kappa}B$.

• The Journal of the Korea Contents Association
• /
• v.18 no.5
• /
• pp.115-122
• /
• 2018

The purpose of this study is to compare student evaluation methods in team based learning classes for dental hygiene students. The subjects of this study were the score of dental hygiene students who took the courses of 'oral health education practice'. The analysis methods were spearman correlation analysis, skewness, kurtosis and Mann-Whitney U test. As a result, there was a significant correlation between the self-evaluation and peer-evaluation. Self-evaluation showed lenience tendency rather than peer-evaluation and self-evaluation found the highest central tendency. The peer-evaluation result was more lenience and more central in the group where self-evaluation was performed.

• Proceedings of the Korea Contents Association Conference
• /
• 2010.05a
• /
• pp.73-75
• /
• 2010

1인칭 슈팅 게임인 FPS(First-person shooter)게임은 시각적 사실성이 뛰어난 고급 그래픽이 특징으로 컴퓨터 성능의 향상과 게임 제작 기술의 발전으로 꾸준히 성장해 가고 있다. 하지만 대부분의 FPS 게임은 동일 캐릭터에 무기만 바꾸는 방식의 단조로운 자유도를 제공하며 이로 인해 사용자의 입장에서는 장기간 게임진행시 흥미를 잃기 쉽다. 이러한 단조로운 게임방법을 변화시키고자 1999년 밸브(Valve) 사(社)의 '팀 포트리스(Team Fortress)' 게임은 FPS 게임 사상 최초로 병과 시스템을 도입하여 다양하고 개성 있는 캐릭터 구성으로 큰 주목을 받았다. 이를 분석해 FPS 게임을 개발할 때 다양한 병과 캐릭터가 플레이어에게 얼마나 더 게임에 대한 몰입과 흥미를 주는지 분석하려 한다. 이 분석을 위해 '팀 포트리스'의 후속 작 '팀 포트리스2(Team Fortress 2)'의 병과 캐릭터를 성격 유형 분석에서 보편적으로 많이 쓰이고 사람들에게 친숙한 MBTI (Myers-Briggs Type Indicator) 방식으로 파악하여 각 병과별 캐릭터 설정이 게임 플레이어와의 성격에 따라 얼마나 더 몰입도와 흥미를 줄 수 있는지 도출해 내려한다.

• Food Industry
• /
• s.176
• /
• pp.47-68
• /
• 2003

• The Korea Beekeeping Bulletin
• /
• s.349
• /
• pp.34-35
• /
• 2009

• The monthly packaging world
• /
• s.288
• /
• pp.65-69
• /
• 2017

• Fashion Information and Technology
• /
• v.12
• /
• pp.2-9
• /
• 2015

• The Korea Beekeeping Bulletin
• /
• s.346
• /
• pp.45-50
• /
• 2009