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최윤정(Choi Yun Jung),이종혁(Lee Jong Hyuk) 한국언론학회 2011 한국언론학보 Vol.55 No.4
Based on the selective exposure theory, this study examined internet media users’ selective exposure on the internet, and its effects on attitude formation. A news website that has links to both positive and negative news stories about the Korea-U.S. FTA was provided to experiment participants, and the participants’ news selection patterns for 6 consecutive news story choices were observed. An cluster analysis based on the participants pre-formed attitude toward the FTA and the news selection produced 4 clusters of groups - those who supported the FTA and selected pro-FTA stories, those who supported the FTA but selected anti-FTA stories, those who disapproved the FTA and selected anti-FTA stories, and those who disapproved the FTA but selected pro-FTA stories. The study also found that attitudes of the four groups converged to the middle after news selection. Those strong supporters and opponents of the FTA relieved their strong opinions after news selection. The study also suggests knowledge, discussion with friends and family, and opinion strength as three variables that influence cross-cutting exposure on the internet.
최윤정(Yun Jung Choi),이종혁(Jong Hyuk Lee) SBS 2016 미디어경제와 문화 Vol.14 No.2
본 연구는 사회적 시청이 TV의 문화계발 효과 가운데 이야기 몰입과 현실감에 미치는 영향을 분석했다. 사회적 시청은 TV 시청을 하며 동시에 온라인 대화를 하는 다매체 이용 행위다. 드라마를 시청하며 인터넷이나 모바일 기기를 이용해 해당 드라마에 대해 다른 시청자들과 의견을 나누는 경우에 해당된다. 본 연구는 우선 드라마의 문화계발 효과의 일부분을 ‘시청량 → 이야기 몰입 → 현실감’으로 모형화한 뒤, 구조방정식 분석으로 타당성을 검증했다. 이어서 온라인 대화를 조절변인으로 모형에 포함시켜, 변화를 분석했다. 그 결과, 온라인 대화는 이야기 몰입에서 현실감으로 이어지는 경로에 유의미하게 부정적으로 작용했다. 이는 드라마 시청에 온라인 대화가 곁들여질 때, 시청자가 드라마에 몰입해도 드라마가 현실과 유사하다는 판단이 뒤따라오지 않을 수 있음을 시사한다. 사회적 시청이 드라마의 문화계발 효과를 방해하는 셈이다. 이 연구를 위해 500명의 사회적 시청 경험자들이 설문조사에 참여했다. This study investigated how social viewing makes changes in the TV’s cultivation effect. Social viewing is a way of multimedia use including both TV viewing and online social talk. It occurs when TV viewers exchange their information and opinions with other viewers of a program while they watch the program. This study proposed a model indicating relationships among viewing, narrative transportability, and perceived realism, and analyzed it with structural equation modeling. Then, it was observed how the online talk, as a moderating variable, made changes in the model. As results, the online talk made a significantly negative effect on the relationship between narrative transportability and perceived realism. It is a way that social viewing interrupts TV’s cultivation effect. For this study, 500 people with experience of social viewing participated in a survey.
서울지역 미세먼지 고농도에 따른 천식사망자 사례일의 종관기상학적 분류
최윤정 ( Yun-jeong Choi ),박종길 ( Jong-kil Park ),정우식 ( Woo-sik Jung ) 한국환경과학회 2017 한국환경과학회지 Vol.26 No.2
Asthma deaths in Seoul peaked on the third, fifth, and second days after the PM concentration exceeded the daily average concentration standard. We classified the synoptic meteorological conditions, based on the days involving such cases, into three categories. Type 1 included the meteorological condition likely to cause high air pollution concentrations in the leeward region, the dominant wind direction of which is the northwest. Type 2 included the meteorological condition likely to cause high air pollution concentrations due to the weak wind velocity under stable atmospheric conditions. Type 3 was when the passage low atmospheric pressure and the expansion of high atmospheric pressure occurred at the rear, indicating a meteorological condition likely to cause high air pollution, in certain regions. Type 1 occurred 11 times, with high concentrations of over 100 ㎍/ ㎥ being observed in the southeastern part of Seoul. Type 2 occurred 24 times, often accompanied by a PM concentration of 100~400 ㎍/ ㎥ . Type 3 occurred 11 times, and was accompanied by several days of yellow dust that accounted for the highest concentrations.
양식넙치에서 분리된 Edwardsiella tarda 의 생화학적 및 혈청학적 특성에 관한 연구
최윤정(Yun Jung Choi),전세규(Seh Kyu Chun),박수일(Soo Il Park),방종득(Jong Deuk Bang) 한국어병학회 1992 한국어병학회지 Vol.5 No.1
This study was carried out in order to identify the biochemical and serological characteristics of Edwardsiella tarda isolated from cultured flounder, Paralichthys olivaceus in the east and south coast of Korea. During the year of 1990 and 1991, the number of isolated E. tarda were 131 strains. To identify the biochemical characteristics of them kinds of tests were conducted. The results represented that all the strains had the same biochemical characteristics, and their biochemical characteristics were no differences among strains. A serological analysis was carried out based on agglutination test with antiserum belonging to E. tarda serotype a (E-22), b (SU138), c (SU-100) classfied in japan. The selected 10 isolates showed agglutinin titer of 51202560, 40-80 and below 40 against E. tarda serotype a, b and c, respectively. Sodium dodecyl sulfate polyacrylamide gel electrophoresis(SDS-PAGE) profiles of cell proteins of selected 10 isolates were showed no differences in kinds and volumes of proteins among strains.
토론속도주의가 숙의적(deliberative) 인터넷 토론에 미치는 영향
최윤정(Yun Jung Choi),이종혁(Jong Hyuk Lee) 한국언론학회 2012 한국언론학보 Vol.56 No.1
The purpose of this study is to conceptualize ‘hasty discussion’ based on a Korean-unique trait, “Paly Paly,” and to examine the effect of ‘hasty discussion’ on deliberative Internet discussion. The ‘hasty discussion’ is defined as a disposition of seeking discussion results as soon as possible regardless of the number of discussion participants and discussion procedures. Methodologically, 600 people who had experiences of internet discussions were surveyed. As results, the concept of ‘hasty discussion’ has two dimensions such as ignorance of discussion procedures and ignorance of diverse opinions. These hasty discussion dimensions negatively influenced cross-cutting exposure and rational discussion as expected. Further, the ignorance of various opinions had a negative influence on opinion convergence through mediation of cross-cutting exposure and rational discussion. Another finding is that four different groups in terms of the level of ‘hasty discussion’ showed significant differences in the model of ‘hasty discussion→cross-cutting exposure and rational discussion→opinion convergence’. Implications of this study were discussed.
인터넷 토론에서 이견(異見) 노출이 정치적 관용에 이르는 경로 분석
최윤정(Yun Jung Choi),이종혁(Jong Hyuk Lee) 한국언론학회 2012 한국언론학보 Vol.56 No.2
This study aimed at examining the Korean society’s Internet political discussion forums with deliberative concepts such as cross-cutting exposure and political tolerance. Based on Diana Mutz’s theory on cross-cutting, this study proposed a theoretical model which asserts that cross-cutting exposure on the discussion forums influences critical thinking which leads to opinion modification and opinion polarization, which eventually lead to political tolerance. In order to test the model, this study surveyed 600 Internet discussion participants. The results indicate that critical thinking mediates the influence of cross-cutting exposure on both opinion modification and opinion polarization significantly. This role of critical thinking in the cross-cutting exposure has been newly discovered in this study. Opinion modification has a positive influence on political tolerance, whereas opinion polarization did not have any influence on political tolerance. In addition, a model comparison between a politically opinionated group and a neutral group was conducted. Implications of the results on the Korean Internet discussion society were discussed.