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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Deregulation and the market in public discourse: the AT&T divestiture, the 1996 Telecommunications Act, and the development of a commercial Internet

Gustafson, Karen Estelle 29 August 2008 (has links)
Not available
92

Discursive Security: F.B.I. Stings and the Nature of Peace

Testerman, Adam 28 May 2015 (has links)
The current study utilizes Critical Discourse Analysis and Thematic Analysis to study newspaper coverage of F.B.I. sting operations in The New York Times, Washington Post, and USA Today. F.B.I. sting operations are a modern counter-terrorism policy designed to preempt acts of terrorism. This study develops a theoretical approach to understanding F.B.I. sting operations by reviewing the critique of security. The critique of security suggests that nations construct threats in order to produce and maintain ideological and practical hegemony. Thematic categories of the newspaper discourse are formulated and analyzed in the context of security. The study employs aspects of grounded theory for theoretical positioning. Findings suggest newspaper coverage of F.B.I. sting operations reflect and expand security in a number of important ways. Newspaper coverage provides information on a significant tactic used in the War on Terrorism and gives insight to the justification and reasoning for using that tactic. These pieces of information explain the interplay of security and counter-terrorism policy. However, findings also suggest security fosters positive relationships between nations, which requires repositioning aspects of the critique of security developed previously. Finally, newspaper discourse of F.B.I. sting operations helps contextualize the way modern counter-terrorism policy is ideologically configured. Findings show the dominant ideological configuration is security. The study considers how this framework contributes to a flawed understanding of the nature of peace.
93

Interrogating the role of Zimbabwe‟s print media in environmental reporting

Mandizvidza, Lisborn Webster 06 1900 (has links)
Text in English / The study aimed to explore the coverage of environmental news by Zimbabwe‟s print media. The research is premised on the admission that the press covers environmental issues in their reportage. However, the study revealed that there are challenges obtaining in environmental reporting by the three weeklies, namely; Daily News on Sunday, The Financial Gazette, and The Sunday Mail. The use of content analysis and critical discourse analysis in analysing the environmental news stories helped to highlight the shortcomings of media houses and journalists as depicted by their choice of words or phrases, the inclusion as well as exclusion of certain viewpoints. The study analysed environmental news in themes such as imminent decimation of wildlife through poaching, climate change, violation of wetlands, destruction of forests, and land reclamation. To aid the understanding and appreciation of environmental reporting by the press, the study utilised three media theories, namely, agenda-setting, development media theory, and framing. Chapter one focused on introducing the context of the study, as well as justifying it, and adopted the qualitative research method for the study. Chapter two gave an extended review for the study. Chapter three provided the research methodology. Chapter four analysed environmental stories published by the Daily News on Sunday.Chapter five analysed environmental stories which were published in The Financial Gazette.Chapter six gave an analysis of environmental news published in The Sunday Mail. Chapter seven concluded the study by giving a summary of the central argument of the study which was that the Zimbabwean press fell short in effectively and efficiently sourcing, selecting and disseminating environmental news. The chapter proffered some recommendations which point to some areas which require further studies. / Communication Science / D. Litt. et Phil. (Communication)
94

A Textual Analysis of News Framing in the Sri Lankan Conflict

Ratnam, Cheran 12 1900 (has links)
The purpose of this study is to investigate how local and foreign newspapers used the war journalism and peace journalism frames when covering the Sri Lankan civil war, and to uncover subframes specific to the conflict. The first part of the thesis provides an in- depth literature review that addresses the history of the conflict and media freedom in Sri Lanka. The newspaper articles for the textual analysis were selected from mainstream Sri Lankan and U.S newspapers: the Daily News (a state sponsored newspaper) and Daily Mirror from Sri Lanka, and the New York Times and Washington Post from the U.S. A total of 185 articles were analyzed and categorized into war journalism and peace journalism. Next, subframes specific to the Sri Lankan conflict were identified. The overall coverage is dominated by the peace journalism frame, and the strongest war journalism frame is visible in local newspaper articles. Furthermore, two subframes specific to the Sri Lanka conflict were identified: war justification subframe and humanitarian crisis subframe. In conclusion, the study reveals that in the selected newspapers, the peace journalism frame dominated the coverage of the Sri Lankan civil war. All in all, while adding to the growing scholarship of media framing in international conflicts, the study will benefit newspaper editors and decision-makers by providing textual analysis of content produced from the coverage of war and conflict during a dangerous time period for both journalists and the victims of war.
95

"Game Over" for the Climate: The Keystone XL Pipeline on TV News

Wilder, Elisabeth 30 September 2013 (has links)
The overwhelming consensus of the world's climate scientists is that we must rapidly reduce our greenhouse emissions if we are to avoid catastrophic and irreversible climate change. Yet the proposed Keystone XL pipeline, which would carry tar sands oil that emits three to four times the carbon emissions of conventional gasoline across the U.S., is supported by a solid majority of Americans. This level of support for a project a proposal that would dramatically increase greenhouse gas emissions, pollute sensitive lands and water sources, and threaten the health and safety of communities along the way begs the question: what kind of information have Americans received about the pipeline? Relying on theoretical perspectives developed by scholars who examine power structures, ideology, and the political economy of the mass media, I analyze 177 national network and cable news broadcasts in order to determine what kind of information leading media sources provide to the public about the Keystone XL pipeline proposal and the context in which this information is presented. Content analysis of broadcast transcripts reveals that television news stations exhibit biased coverage that encourages viewers to support pipeline construction. Furthermore, television news stations marginalize environmental and social concerns and disproportionately rely on business and government sources for information. Finally, the dominant frame employed by the news media is informed by neoliberal ideology and offers no challenge to the preferences of corporate and government elites--including the continued dominance of the fossil fuel industry. This type of coverage affords viewers a very limited basis for understanding the environmental and ultimately social threats posed by Keystone XL.
96

Performance of mobile GIS in conjunction withinternet bandwidth in rural areas

Reynisson, Jón Ágúst January 2015 (has links)
The emerging techniques of mobile GIS applications, its abilities and its implied limitations ofinternet connections is the main subject in this study. Many of the operations that mobile devicesuse are dependent on mobile internet connectivity. Therefore the potential for it in well connectedareas is great but how would they function in less connected areas? Mobile GIS, which is todaymostly used in devices as smart phones and tablets, has internet connectivity for uploading anddownloading files and other data. Mobile GIS is also dependent on location-based services thatenable the device to get information or take action from the current location of the device. Thisresearch examines the potential usage of mobile GIS in conjunction with the bandwidth of wirelesstechnologies. It is important to study this issue to see if mobile applications can perform upload anddownload tasks within reasonable time in poor mobile coverage. To test the possibilities of mobileGIS in rural areas a test environment is set up in a mobile GIS application for septic tanks. Thetesting is performed by uploading and downloading data with real GIS actions from pre-selectedlocations that have low mobile coverage. The study is comparing the measurements with a scale ofacceptable time for download and upload. The result for registering (uploading) a new point inmobile GIS with three small images is that it requires at least 330 Kbit/s connection to transfer thedata within acceptable time. The results for uploading data without images and downloading giveseven better results and are not as dependent on a good connection for transferring within acceptabletime. The conclusion is that mobile gis applications are able to run within acceptable time measuresin rural areas. The results and other sources were used to make general guidelines for mobile GISapplications for use in rural areas.
97

OPTIMAL CONFIGURATION FOR NODES IN MIXED CELLULAR AND MOBILE AD HOC NETWORK FOR INET

Babalola, Olusola 10 1900 (has links)
ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada / As part of Morgan’s iNET development, the Mixed Cellular and Mobile Ad hoc Network (MCMN) architecture has been 1proposed to provide coverage to over-the horizon test articles. Nodes in MCMN are assigned to one of three possible modes- Ad hoc, Cellular or Gateway. We present architecture for the proposed MCMN and some performance analysis to characterize the network. The problem of organizing nodes in this mixed network with optimal configuration is significant. This configuration gives nodes ability to know the best mode to operate and communicate with other nodes. Node organization is critical to the performance of the mixed network and to improve communication. The configuration of nodes required to optimally organize nodes in MCMN is demonstrated. The problem of evaluating configuration parameters for nodes in a mixed network is a nonlinear and complex one. This is due to the various components like the number of nodes, geographical location, signal strength, mobility, connectivity and others that are involved. Clustering techniques and algorithms have been used in literature to partition networks into clusters to support routing and network management. A clustering technique is employed to dynamically partition the aggregate network into Cluster Cells (CCs). A gateway node is selected for each CC which relays traffic from the cellular to the Ad hoc and vice versa. A trade-off analysis of the cellular boundary is presented using the maximum of the minimum data rate in the network. Numerical analysis and experiments are provided to show that the coverage can be extended to test articles in over-the-horizon region. It is also shown that, when the network is well organized, performance is improved.
98

Den lyckliga vinnaren : Så gestaltas spelande för pengar i svensk kvällspress / The happy winner : The way gambling is framed by Swedish tabloid press

Norlindh, Niclas, Åberg, Andreas January 2016 (has links)
The purpose of this study is to examine in which way two Swedish tabloid newspapers, Aftonbladet and Expressen, most commonly frame gambling in the news coverage on their websites in a time when research reveals that it has become increasingly harder to determine what is journalistic material and what is advertisement. At the same time, gambling companies have taken over a large part of the advertising space at Swedish tabloid websites. There has, in its extent, been done insufficient research within the journalistic field of news coverage when it comes to gambling and this study seeks to fill in some of the investigative blanks. In order to analyze how frames emerge from the news coverage we collected articles from a six-month period, as close to the initiation of the study as possible, by using eight different words or short phrases that led to the total empirical data of 302 news articles. Methodologically the study uses quantitative content analysis mainly based on the theory of framing. Furthermore, we also apply the theoretical aspects of agenda setting and news selection. The result clearly shows that the Swedish tabloid newspapers frame gambling in a positive and non-problematic way and there is a remarkable over representation of articles that are based on what we call “the happy winner frame”. In the conclusion we discuss both social and media related implications of the newspapers way of framing gambling in their online news coverage. We also offer a couple of propositions for future research within this field of medial science.
99

PERFORMANCE ISSUES IN MIXING CELLULAR AND MANET FOR iNET

Babalola, Olusola 10 1900 (has links)
ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada / In the iNET community, communications between Test Articles (TA) and Ground Station (GS) can be over a long distance course that places a TA at ranges where they are sometimes beyond line-of-sight (LoS) or over-the-horizon communications with the GS. In other cases, the TA moves out of the LoS communications range of GS. There is a need to provide communications to these TA at these over-the-horizon locations. The Cellular and Mobile Ad Hoc Network (MANET) have attracted a lot of attention recently and the field continues to grow daily. The cellular network offers high capacity but limited in coverage due to its fixed base infrastructure. MANET on the other hand has a wide range of coverage and also high data rates, but its throughput performance is reduced at high capacity. The MANET cellular mixture network (MCMN) has been proposed to provide an extensive communications between the TA and GS in the iNET environment. This work presents a performance evaluation and analysis of the two different networks with respect to the performance needs of iNET environment which include coverage and throughput.
100

A Study on Timed Base Choice Criteria for Testing Embedded Software

Bergström, Henning January 2016 (has links)
Programs for Programmable Logic Controller (PLC) are often written in graphical or textual languages. Control engineers design and use them in systems where safety is vital, such as avionics, nuclear power plants or transportation systems. Malfunction of such a computer could have severe consequences, therefore thorough testing of PLCs are important. The Base Choice (BC) combination strategy was proposed as a suitable technique for testing software. Test cases are created based on BC strategy by varying the values of one parameter at a time while keeping the values of the other parameters fixed on the values in the base choice. However, this strategy might not be as effective when used on embedded software where parameters need to be set for a certain amount of time in order to trigger a certain interesting behavior. By incorporating time as another parameter when generating the tests, the goal is to create a better strategy that will increase not only code coverage but also fault detection compared to base choice strategy. Timed Base Choice (TBC) coverage criteria is an improvement upon the regular Base Choice criteria with the inclusion of time. We define TBC as follows: The base test case in timed base choice criteria is determined by the tester of the program. A criterion suggested by Ammann and Offutt is the “most likely value” from the point of view of the user. In addition, a time choice T is determined by the tester as the most likely time for keeping the base test case to the same values. From the base test case, new test cases are created by varying the interesting values of one parameter at a time, keeping the values of the other parameters fixed on the base test case. Each new test case is executed with the input values set for a certain amount of time determined by the time choice T. The time choice is given in time units. The research questions stated in this thesis are as follows: Research Question 1 (RQ1) How does Timed Base Choice tests compare to Base Choice tests in terms of decision coverage? Research Question 2 (RQ2) How does Timed Base Choice tests compare to Base Choice tests in terms of fault detection? In order to answer these questions, an empirical study was made in which 11 programs was tested along with respective test cases generated by BC and TBC. Each program was executed on a PLC along with the belonging test cases and several faulty programs (mutants). From this testing we got the corresponding decision coverage for each program achieved by BC and TBC respectively as well as a mutation score measuring how many of the mutated programs was detected and killed. We found that TBC outperformed BC testing both in terms of decision coverage and fault detection. Using TBC testing we managed to achieve full decision coverage on several programs that we were unable to achieve using regular BC. This shows that TBC is an improvement upon the regular BC in both ways, thus answering our previously stated research questions.

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