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A-List Twitter Users in Korea’s Political Tweet Sphere
Chien-leng Hsu,Ji-Young Park,Han-Woo Park 한국콘텐츠학회 2012 International Journal of Contents Vol.8 No.3
This study examines A-list users in the Twitter network of National Assembly members in South Korea. An examination of some socio-geographic characteristics of these A-list users indicates that the distribution of these users in terms of their geographic location and social status can be understood in the context of the Korean social structure. In addition, an examination of Tweets posted by these users shows that half of these users had negative attitudes toward the current administration and that some Tweets contained emotional terms.
A-List Twitter Users in Korea's Political Tweet Sphere
Hsu, Chien-Leng,Park, Ji-Young,Park, Han-Woo The Korea Contents Association 2012 International Journal of Contents Vol.8 No.3
This study examines A-list users in the Twitter network of National Assembly members in South Korea. An examination of some socio-geographic characteristics of these A-list users indicates that the distribution of these users in terms of their geographic location and social status can be understood in the context of the Korean social structure. In addition, an examination of Tweets posted by these users shows that half of these users had negative attitudes toward the current administration and that some Tweets contained emotional terms.
Political Discourse Among Key Twitter Users: The Case Of Sejong City In South Korea
Hsu, Chien-leng,Park, Se Jung,Park, Han Woo World Association for Triple Helix and Future Stra 2013 Journal of Contemporary Eastern Asia Vol.12 No.1
This paper examines communication patterns of key Twitter users by considering the socially and politically controversial Sejong City issue in South Korea. The network and message data were drawn from twtkr.com. Social network-based indicators and visualization methods were used to analyze political discourse among key Twitter users over time and illustrate various types of Tweets by these users and the interconnection between these key users. In addition, the study examines general Twitter users' participation in the discussion on the issue. The results indicate that some Twitter profiles of media outlets tend to be very dominant in terms of their message output, whereas their Tweets are not likely to be circulated by other users. Noteworthy is that Twitter profiles of individuals who are geographically affiliated with the issue are likely to play an important role in the flow of communication.
Bulent Ozel,Chien-leng HSU,Yon Soo Lim,Han Woo PARK 한국콘텐츠학회 2009 ICCC International Digital Design Invitation Exhib Vol.2009 No.12
This research examines the emotional content contained in facial pictures of South Korean politicians. The data were collected from official homepages of 18th National Assembly members in South Korea. We classified the types of facial expressions (smiling, frowning, no expression) using the official photographs on the members' homepages. Our analyses show that a smiling image is the most prevalent facial expression on Web pages of South Korean politicians regardless of distribution of their socio-political-demographic attributes. Furthermore, our analyses suggest that existence and strength of a smiling image has statistically significant positive correlation with politicians' visibility counts. Opposition parties significantly exhibit more prevalent frowning faces and expressionless faces compared to ruling party. Besides, our findings hint that more experienced politicians. contrary to their less experienced colleagues of similar generations, keep smiling.
Liu, Chi-Jen,Wang, Chang-Hai,Chien, Chia-Chi,Yang, Tsung-Yeh,Chen, Shin-Tai,Leng, Wei-Hua,Lee, Cheng-Feng,Lee, Kuen-Ho,Hwu, Y,Lee, Yao-Chang,Cheng, Chia-Liang,Yang, Chung-Shi,Chen, Y J,Je, J H,Margari IOP Pub 2008 Nanotechnology Vol.19 No.29
<P>We explored a very interesting gold nanoparticle system—pegylated gold in colloidal solution—and analyzed its uptake by mice colorectal adenocarcinoma CT26 tumor cells and the impact on the cell’s response to x-ray irradiation. We found that exposure to polyethylene glycol (PEG) modified (‘pegylated’) 4.7 ± 2.6 nm gold nanoparticles synthesized by a novel synchrotron-based method enhances the response of CT26 cells to x-ray irradiation. Transmission electron microscopy (TEM) and confocal microscopy revealed that substantial amounts of such nanoparticles are taken up and absorbed by the cells and this conclusion is supported by quantitative induced coupled plasma (ICP) results. Standard tests indicated that the internalized particles are highly biocompatible but strongly enhance the cell damage induced by x-ray irradiation. Synchrotron radiation Fourier transform infrared (SR-FTIR) spectromicroscopy analyzed the chemical aspects of this phenomenon: the appearance of C = O stretching bond spectral features could be used as a marker for cell damage and confirmed the enhancement of the radiation-induced toxicity for cells.</P>