", "The Establishment"). Unlike the first three "filtering" mechanisms — which are derived from analysis of market mechanisms — flak is characterized by concerted and intentional efforts to manage public information . Flak from the powerful can be either direct or indirect. The direct could include the following hypothetical scenarios: Letters or phone calls from the White House to Dan Rather or William Paley Inqueries from the FCC to major television networks requesting documents used to plan and assemble a program Messages from irate executives representing advertising agencies or corporate sponsors to media officials threatening retaliation if not granted on-air reply time. The powerful can also work on the media indirectly by: Complaints delivered en masse to their own constituencies (e. g. , stockholders, employees) about media bias, Generation of mass advertising that does the same, By funding watchdog groups or think tanks engineered to expose and attack deviations in media coverage that endanger vital elite interests. 3d Model Tank By funding political campaigns that elect politicians who will be more willing to curb any such media deviations. Anti-Ideologies; substitutes for anti-communism A final filter is anti-ideology. "

" 83, 1529 (1999). S. F. Novaes, Standard Model: An Introduction, hep-ph:0001283 I. Models are usually man-constituted. That justifies talking about their purpose prior to talking about their consistency. Models are used as substitutes for originals because properties of the latter are of interest and the originals are not going to be investigated themselves. 3d Model Software There may be a number of reasons for that such as taboos preventing from studying the original itself, or inability, the involved cost in terms of resources or moral damage being intolerable, or similar. For an investigator I it makes only sense to consider an entity M as a substitute of an entity O, if I can (1) establish an analogy, similarity, or similar relation between M and O that permits the substitution of O by M with respect to purpose and means, time-horizon etc. "