373 research outputs found
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Corporate newspapers, global warming, and the editorial vigor hypothesis
The purpose of this dissertation was to examine the impact of corporate structure on editorial-page coverage of global warming. Employing a macro-social perspective, this dissertation posits that, contrary to the corporate media critics’ claim of pro-industry bias, newspapers become more critical of dominant economic and political elites as they acquire the characteristics of the corporate form of organization. A national probability survey of daily newspapers in the United States was employed to test following hypotheses:H1: The more a newspaper exhibits the characteristics of the corporate form of organization, the more editorials it will publish about global warming and the Bush administration’s policies toward global warming.H2: The more a newspaper exhibits the characteristics of the corporate form of organization, the more critical its editorials will be of the Bush administration’s policies toward global warming.Survey data supported both hypotheses. Corporate structure was positively related to the number of editorial. Also, corporate structure was positively related to the editorial vigor. Regression analysis was conducted to determine whether the corporate structure would still remain predictors of editorial vigor when controlling for newspaper’s political ideology and ownership type (public vs. private). The findings suggest that 1) structural complexity has direct effects on editorial vigor; 2) newspaper ideology mediates effects of public ownership on editorial vigor, and 3) newspaper ideology is directly related to editorial vigor
Between Votes and Allies: South Korea's Strategic Dilemma in a World of Uncertainties
Streaming audio requires RealPlayer.The University Archives has determined that this item is of continuing value to OSU's history.Professor Taehyun Kim teaches at the Graduate School of
International Studies, Chung-Ang University, Seoul, S. Korea. He has written scores of articles, either in English or Korean, on
such subjects as international relations theory, foreign policy
analysis, inter-Korean relations, international relations in East
Asia, and other international security issues.Ohio State University. Mershon Center for International Security StudiesEvent webpage, streaming audi
Scalable Video Streaming over the Internet
The objectives of this thesis are to investigate the challenges on video streaming, to explore and compare different video streaming mechanisms, and to develop video streaming algorithms that maximize visual quality. To achieve these objectives, we first investigate scalable video multicasting schemes by comparing layered video multicasting with replicated stream video multicasting. Even though it has been generally accepted that layered video multicasting is superior to replicated stream multicasting, this assumption is not based on a systematic and quantitative comparison. We argue that there are indeed scenarios where replicated stream multicasting is the preferred approach.
We also consider the problem of providing perceptually good quality of layered VBR video. This problem is challenging, because the dynamic behavior of the Internet's available bandwidth makes it difficult to provide good quality. Also a video encoded to provide a consistent quality exhibits significant data rate variability. We are, therefore, faced with the problem of accommodating the mismatch between the available bandwidth variability and the data rate variability of the encoded video. We propose an optimal quality adaptation algorithm that minimizes quality variation while at the same time increasing the utilization of the available bandwidth.
Finally, we investigate the transmission control protocol (TCP) for a transport layer protocol in streaming packetized media data. Our approach is to model a video streaming system and derive relationships under which the system employing the TCP protocol achieves desired performance. Both simulation results and the Internet experimental results validate this model and demonstrate the buffering delay requirements achieve desired video quality with high accuracy. Based on the relationships, we also develop realtime estimation algorithms of playout buffer requirements.Ph.D.Committee Chair: Mostafa H. Ammar; Committee Co-Chair: Yucel Altunbasak; Committee Member: Chuanyi Ji; Committee Member: George Riley; Committee Member: Henry Owen; Committee Member: Jack Brassi
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