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A paradigm shift is a fundamental change in the basic concepts and experimental practices of a scientific discipline.It is a concept in the philosophy of science that was introduced and brought into the common lexicon by the American physicist and philosopher Thomas Kuhn.
It is similar in usage and meaning to a paradigm shift, and may be viewed as a change to a society or community's zeitgeist, with regard to a specific issue. The phrase evolved from an older and more literal usage when the term referred to an actual "change wrought by the sea", [ 1 ] a definition now remaining in very limited usage.
The Oxford English Dictionary defines a paradigm as "a pattern or model, an exemplar; a typical instance of something, an example". [11] The historian of science Thomas Kuhn gave the word its contemporary meaning when he adopted the word to refer to the set of concepts and practices that define a scientific discipline at any particular period of time.
The paradigm shift does not merely involve the revision or transformation of an individual theory, it changes the way terminology is defined, how the scientists in that field view their subject, and, perhaps most significantly, what questions are regarded as valid, and what rules are used to determine the truth of a particular theory.
[citation needed] According to this view, the fundamental structures of international politics are social rather than strictly material. This leads to social constructivists to argue that changes in the nature of social interaction between states can bring a fundamental shift towards greater international security. [19]
A fundamental shift occurs when the deictic center moves from one character to another—for instance, in cases of omniscient thought report. Here the reader must adjust the deictic center accordingly and interprets the lens of the current focal window through the experiential subjectivity of the character-locus.
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In economics, structural change is a shift or change in the basic ways a market or economy functions or operates. [1]Such change can be caused by such factors as economic development, global shifts in capital and labor, changes in resource availability due to war or natural disaster or discovery or depletion of natural resources, or a change in political system.