Thesis (Ph.D.)--University of Oklahoma, 1987. / Bibliography: leaves 105-116.

Corporate influence has been an ongoing concern for working journalists. Even in the early days of television, Edward R. Murrow saw a bleak future for society if broadcasters succumbed to corporate greed and failed in their responsibility to inform the public. This rhetorical study of Murrow's 1958 speech to the Radio-Television News Directors Association, guided by Perelman's theory of the universal audience and presence, argues that Murrow's speech prioritized broadcast journalism's obligation to a democratic society and warned that commercial intrusion was impacting the profession's moral obligations. At the same time, in appealing to a particular audience, Murrow deemphasized the role of individuals in the process, including both working journalists and the viewing audience. I apply the findings of my rhetorical analysis to a qualitative case study analysis of three collegiate broadcasting textbooks to examine how closely Murrow's vision for the industry is being passed on to the next generation of broadcast journalists. My findings suggest that tensions exist between the two, including Murrow advocating a more proactive rather than a reactive approach to broadcast journalism. I conclude by offering recommendations to broadcast educators in helping young journalists balance the obligations Murrow envisioned for the industry and the corporate realities of broadcasting.

With the increasing acceptance of wireless technology, mechanisms to efficiently transmit information to wireless clients are of interest. The environment under consideration is asymmetric in that the information server has much more bandwidth available, as compared to the clients. It has been proposed that in such systems, the server should broadcast the information periodically. Acharya et al. have proposed the use of a periodic dissemination architecture in the context of mobile systems, called Broadcast Disks. Using Broadcast Disks can construct a memory hierarchy in which the highest level contains a few items and broadcasts them with high frequency while subsequent levels contain more and more items and broadcast them with less and less frequency. In this way, one can establish a trade-off between access time for high-priority data and that of the low-priority items, where access time means that the time elapsed from the moment a client submits a query to the receipt of data of his (her) interest on the broadcast channel. A broadcast schedule specifies when and where each data page is to be transmitted. (Note that the smallest logical unit of the broadcast data is called a data page which is made up by data items. The time required to broadcast a data page is referred to as a time slot.) However, based on Acharya et al.'s algorithm, some broadcast slots may be unused, which resulting in the waste of bandwidth and the increase of access time, if it is not possible to evenly divide the number of broadcast pages assigned on a disk into the required number of chunks. (Note that each disk is split into a sequence of smaller units called chunks.) Therefore, in this thesis, we propose two efficient broadcast programs in which no empty slots is wasted. The first one is the binary-number-based approach and the second one is the complementary approach. In the binary-number-based approach, the broadcast frequency must be restricted to a value of 2^n , n¡Ù0, i.e. 1, 2, 4, 8..., etc; while in the complementary approach, there is no restriction on the broadcast frequency. From our performance analysis and simulation, we show that both of our proposed two approaches generate a small number of slots in one broadcast cycle (i.e., a shorter broadcast cycle) and shorter mean access time than Acharya et al. algorithm. Moreover, our first approach (the binary-number-based approach) requires a smaller number of slots in one broadcast cycle and shorter mean access time than the second approach (the complementary approach); however, there is some restriction on the chosen frequency in the first approach. Therefore, each of our proposed approaches has its own advantages and applicable domains, and both of them can avoid the wasteness of bandwidth and reduce the waiting time of clients.

No description available.

This thesis focusses on variability in audience interpretation of a television programme, and aims to problematise and investigate the reception of broadcast communication by applying the pragmatic theory of relevance (Sperber and Wilson 1966) to an empirical study of audience response. This aim is achieved using the following method: In Chapter Two I consider the scope of pragmatic theories of inferencing and conclude that relevance theory offers the only account which can both accommodate and provide the basis for an explanation of variation in interpretation. I also assert that for relevance theory to be able to show why an audience interprets a text in a specific way the cultural background of that audience has to be considered. In Chapter Three I show how existing studies of audience response which adopt a critical cultural studies approach require a more sophisticated model of communication than they currently assume if they are to realise their aim of relating audience respo nse to socio-political structures. My contention is that the inferential model proposed by Sperber and Wilson can provide such an account. Chapters Four and Five describe, and report the results of, an empirical study I carry out based on a methodology premised on relevance theory. The study consists of two separate interviews with audiences who have distinct cultural backgrounds in each of which I show a video recording of a television programme and then question the interviewees on their understanding of the text of the programme. In Chapters Six and Seven I discuss the results of the study in relation to relevance theory and media studies. The results of my study indicate that a methodology based on relevance theory can make explicit, and show the significance of, processes involved in audience interpretation of a media text which have not previously been open to analysis. Building on Sperber and Wilson's claim (1986: 15) that the context of an utterance is a psychological construct, and is a sub-set of the set of assumptions available to the hearer of a given utterance, the results make explicit (a) relevant aspects of the encyclopaedic knowledge of two distinct audiences; (b) the contexts these audiences produce in response to a television text; (c) how these contexts are related to the audience's encyclopaedic knowledge; (d) how these contexts affect the disambiguation and enrichment of information linguistically encoded in the text (e) 'The contextual implications, or interpretations, -the audience draw from a synthesis of the information encoded in text and the contexts the audiences apply. My findings are particularly pertinent for the critical cultural approach to audience studies as they indicate how it is possible to make explicit the relationship between response and cultural background by showing how the existing knowledge of an audience affects interpretation and indicating moreover how this knowledge can be related to social determinants. The results of my study also contribute to pragmatic theory in that they show how relevance theory can be used to explain why interpretation may vary.

Thesis (Ph. D.)--West Virginia University, 2008. / Title from document title page. Document formatted into pages; contains ix, 105 p. : ill. Includes abstract. Includes bibliographical references (p. 103-105).

The purpose of this study is to describe Gordon McLendon's contributions to the broadcast profession and to explain why he is regarded as a leader of that profession. There has been no effort to provide a unified statement of the contributions made by him to the broadcast profession. To provide a complete picture of McLendon's contributions to the broadcast profession, an account is needed of his various innovations and activities.

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International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California / This paper introduces the frequency spectrum characteristic of FM radio broadcast and the message format of RBDS (Radio Broadcast Data System). DGPS correction message in RBDS is described in detail. A design method of RBDS/DGPS system is proposed and the RBDS/DGPS system developed by us is introduced. Finally, some special advantages of RBDS/DGPS system are given.

Thesis (M.S.)--Boston University / PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you. / 2031-01-01