" On ontology is in constituting reference mode to the domain it constitutes. The distinction between descriptive and prescriptive reference mode goes at least back to Wieringa, [2] . More detail and references regarding models and modeling can be found, e. g. , in [3]. II. The consistency of models may be conceptual or physical. Plastic Scale Model In many areas of research conceptual models have become the dominating species, as conceptual models, more easily than physical ones, can be investigated by means of computing. For conceptual models to be the shared property of a research community the concepts they involve must be capable of being shared. "

" Such conglomerates frequently extend beyond traditional media fields, and thus have extensive financial interests that may be endangered when certain information is widely publicized. Thus, according to this reasoning, news items that most endanger the corporate financial interests that own the media will face the most bias and censorship. The authors claim that the importance of ownership filter is the fact that corporations are subject to shareholder control in the context of a profit-oriented market economy. The theory then argues that maximizing profit means sacrificing news objectivity, and news sources that ultimately survive must be fundamentally biased, with regard to news in which they have a conflict of interest. Funding The authors also argue that the mainstream media depends heavily on advertising revenues to survive. A newspaper like the New York Times, for example, derives 75% of its revenues from advertisements. The authors suggest that this filter is best seen by adopting a traditional business framework. Plastic Model Truck They argue that a newspaper, like any other company, has a product which it offers to its audience (or customer base). In this case, however, the product is composed of the affluent readers who buy the newspaper — who also comprise the educated decision-making sector of the population — while the audience includes the businesses that pay to advertise their goods. "