Background: Science journalism is essential for keeping citizens of democracies informed and educated, this is part of the public service concept. However, some authors assume much arbitrariness of selectivity mark science news as a peculiar journalistic genre. This study investigates how science news are valued alongside general news in swedish public service programme Rapport. Method: The science features from two years of prime time broadcasts of Rapport was analyzed quantitatively by means of content analysis. Results: Studies with some connection to Sweden, a ”human angle”, emphasizing health risk, seems most likely to be covered. Conclusions: Put into context, the results was interpreted as invalid in some respects that support the conjecture of the peculiar nature of science news. The findings therefore suggest that news value theory needs special revision to account for newsworthiness in science.

Whether or not currency markets may be regarded as efficient or not has been a hotly debated issue in the academic literature over recent decades. Economic theory would suggest that these markets should be efficient because they are apparently good examples of a perfectly competitive market structure. On the other hand, empirical tests of the efficient market hypothesis within these currency markets unequivocally find them to be inefficient. There is still no good explanation for this conundrum and as a result a fair amount of effort is still expended on refining the empirical studies of market efficiency, a task which is taken up in the four empirical studies that comprise this thesis. Within efficient markets, prices are predicted to respond &quotquickly" with the arrival of new information and the empirical work in the thesis focuses on these issues by identifying three key areas for research, namely, price adjustment and volatility, volatility and the &quotnews", and the speed of price adjustment. In essence, the studies examine whether there is inefficient adjustment to news in terms of excessive volatility, whether or not news is actually the main driver of exchange rate volatility and whether or not &quotquickly" can be measured empirically. The empirical results reported within this thesis confirm that the Australian dollar has not been an excessively volatile currency, even though the level of volatility has been increasing; that the pattern of information flow explains a significant degree of the non constant variance in the returns of the world's most actively traded currencies, (i.e. information explains price innovation); that the reaction time to macroeconomic news occurs within seconds of a pre-scheduled announcement, and that the bulk of adjustment to fundamental value occurs within the hour. These findings are consistent with what would be expected within an efficient market. The results reported within this thesis therefore suggest that the currency markets studied are efficient, at least for the sample periods of the data used in the studies. Exchange rates adjust rapidly with information arrival albeit not completely. It is also the case that a number of additional research questions emerge from this research. For example we know that volatility is not excessive and that it is increasing. What we do not know is the point at which increasing volatility becomes excessive. We know that exchange rates react quickly with the arrival of macroeconomic news, but we do not know precisely how long it takes for volatility to return to preannouncement levels, or why the reaction to news is inconsistent. We also do not know what type of information best explains volatility above that which is explained by the systematic dissemination of information or why full adjustment to fundamental value does not occur? Answers to these questions provide a future research agenda. Answers may provide insight that will help financial economists explain the apparent failure of the speculative efficient hypothesis.

Today�s globalized network communication initiates new interactive formats, transforming not only the dissemination, but - increasingly - the production of news. The �one-way� flow of news from a news outlet to the audience has been replaced by a network structure. Following Castells� concept of the �network� (1996) as the central model of information structures, I perpetuate this paradigmatic shift and suggest that networks also transform the professional journalism sphere in many world regions. A revised sphere of journalism is taking shape in which an increasingly global flow of news is evolving and a multiple platform structure of journalism is taking shape in which boundaries between traditional media outlets of print, radio, and television and between national and �foreign� journalism are blurring. Furthermore, I argue that a globalized journalistic network sphere is emerging which involves �traditional� journalistic outlets and bloggers, media activists, so-called citizen journalists, or user-generated content providers alike. These new journalistic spheres of connectivity establish new (and continuous) links between journalists, their sources as well as their audiences. This fundamental change creates new professional levels of connectivity on one hand and on the other, has severe strategic and organizational implications for the management of print, broadcast and online news outlets. Within this new �network� sphere of journalistic practice, the roles of journalistic outlets change. This work suggests a framework that helps to understand journalistic organization today, with innovative work structures based on digital technologies transforming the character and in effect substituting the model of �top-down� journalism models by a model that is far more complicated. I argue that within an evolving global news sphere, information flows are multidirectional. Decentralization and non-linearity become the key parameters defining news flows at the beginning of the twenty-first century. The character of this network in the journalism sphere is transnational, crossmedia, and cross professions. Based on results of thirteen qualitative interviews with media practitioners in Germany, the US and the UK, I argue that a new geography of journalism is taking shape in which journalistic outlets are being transformed into nodes. These nodes are arranged in a dense net of information gathers, producers and disseminators and the interactive connections among them constitute what I want to call network journalism.

Thesis (Ph.D.)--Ohio University, June, 2007. / Title from PDF t.p. Includes bibliographical references.

Thesis (M,A.)--University of Missouri-Columbia, 2007. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on November 12, 2007) Includes bibliographical references.

Thesis (Ph. D.)--Government and International Relations, Faculty of Economics and Business, University of Sydney, 2007. / Title from title screen (viewed 18th June, 2007). Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to Government and International Relations, Faculty of Economics and Business, University of Sydney. Degree awarded 2007; thesis submitted 2006. Includes bibliographical references. Also issued in print.

Thesis (MA--Communication Studies) -- Auckland University of Technology, 2004. / Appendices not included in e-thesis. Also held in print (150 leaves, 30 cm.) in Wellesley Theses Collection. (T 070.44995670443 SAR)

Thesis (Ph.D.). / Written for the Dept. of Political Science. Title from title page of PDF (viewed 2008/01/11). Includes bibliographical references.

Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (leaves 179-197).

Thesis (Ed. D.)--Virginia Polytechnic Institute and State University, 1991. / Vita. Abstract. Includes bibliographical references (leaves 260-262). Also available via the Internet.