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The Neuman systems model is a nursing theory based on the individual's relationship to stress, the reaction to it, and reconstitution factors that are dynamic in nature. [1] The theory was developed by Betty Neuman, a community health nurse, professor and counselor. The central core of the model consists of energy resources (normal temperature ...
Nursing theory is defined as "a creative and conscientious structuring of ideas that project a tentative, purposeful, and systematic view of phenomena". [1] Through systematic inquiry, whether in nursing research or practice, nurses are able to develop knowledge relevant to improving the care of patients.
Pender's health promotion model theory was first published in 1982 and later revised in 1996 and 2002. It is used for nursing research, education, and practice. Research has been conducted on the model since its inception. 250 articles have been published in the English language that use or apply Pender's HPM. [ 6 ]
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The Comfort Theory (CT) is a broad-scope middle range theory because it contains concepts and relationships, is adaptable to a wide range of practice settings and experiences, can be built from many sources and it can be tested and measured. [7] It also qualifies as a middle range theory because of its direct applicability to nursing practice.
First developed in 1980, [2] this model is based upon work by Nancy Roper in 1976. It is the most widely used nursing model in the United Kingdom. The model is based loosely upon the activities of daily living that evolved from the work of Virginia Henderson in 1966. The latest book edited by these women 2001 is their culminating and completing ...
In decision theory, the von Neumann–Morgenstern (VNM) utility theorem demonstrates that rational choice under uncertainty involves making decisions that take the form of maximizing the expected value of some cardinal utility function. This function is known as the von Neumann–Morgenstern utility function.
The first theorem in this sense is von Neumann's minimax theorem about two-player zero-sum games published in 1928, [2] which is considered the starting point of game theory. Von Neumann is quoted as saying " As far as I can see, there could be no theory of games ... without that theorem ...