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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.
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.
Margaret A. Newman (October 10, 1933 - December 18, 2018) was an American nurse, university professor and nursing theorist. She authored the theory of health as expanding consciousness, which was influenced by earlier theoretical work by Martha E. Rogers, one of her mentors from graduate school.
She stated in her nursing notes that nursing "is an act of utilizing the environment of the patient to assist him in his recovery" (Nightingale 1860/1969), [2] that it involves the nurse's initiative to configure environmental settings appropriate for the gradual restoration of the patient's health, and that external factors associated with the patient's surroundings affect life or biologic ...
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 Andersen healthcare utilization model is a conceptual model aimed at demonstrating the factors that lead to the use of health services. According to the model, the usage of health services (including inpatient care, physician visits, dental care etc.) is determined by three dynamics: predisposing factors, enabling factors, and need.
However, four decades passed before Neumann elaborated his application of symmetry in a course on elasticity in 1873. This principle was later formalized by his student Woldemar Voigt (1850–1918) in 1885: " the symmetry of the physical phenomenon is at least as high as the crystallographic symmetry ", which became a fundamental postulate of ...