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In an attempt to interrogate the usefulness and applicability of theory in the realm of international media organisation in society, the article demonstrates the evolution in theoretical construction. It outlines the critical political economy approach drawn on by various theorists of political economy of the mass media -- including Mosco, Schudson, Golding and Murdock. It seeks to illuminate the relevance of this integrated approach to theorising global media in local context (or 'glocalisation') and hence, the also reciprocal relationship of media organisations to society. For this purpose it introduces the case study of the Reuters global news agency in South Africa. An extended case method, which is especially relevant to an integrated theoretical approach, is used to present the so-called adaptations at the Reuters and other news organisations in the face of a globally transforming media environment. The extended case method advances a 'reflexive' (i.e. interpretive) approach, which works well with critical political economy. A critical political economy is an integrated theoretical approach that draws on various streams of political economy and cultural studies. Furthermore, it sees the integration or cross-pollination of various social science disciplines including sociology, international relations, political science, journalism, and cultural studies in researching the media institution. [ABSTRACT FROM AUTHOR]

The application of arresters on transmission lines has been one of the most effective alternatives for the reduction of lightning flashover rates. This paper reviews previous methods for evaluating lightning performance of lines with arresters. Improved calculation of line outage rates are developed to include power freuency voltage and arrester failure rate evaluations, based on field experience. The transmission lines are modeled in full detail in the ATP program and the outage rates are calculated with Monte Carlo's method. Probability energy stresses on arresters are evaluated for strokes on conductors and shield wires as a function of tower footing resistance. [ABSTRACT FROM PUBLISHER]