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While the Föppl–von Kármán equations are of interest from a purely mathematical point of view, the physical validity of these equations is questionable. [7] Ciarlet [8] states: The two-dimensional von Karman equations for plates, originally proposed by von Karman [1910], play a mythical role in applied mathematics. While they have been ...
Often, constructing local balance equations is equivalent to removing the outer summations in the global balance equations for certain terms. [ 1 ] During the 1980s it was thought local balance was a requirement for a product-form equilibrium distribution , [ 10 ] [ 11 ] but Gelenbe 's G-network model showed this not to be the case.
In orbital mechanics, the equations of motion of planets are formulated as point masses located at the centers of mass (see Barycenter (astronomy) for details). The center of mass frame is an inertial frame in which the center of mass of a system is at rest with respect to the origin of the coordinate system.
In the psychology of motivation, balance theory is a theory of attitude change, proposed by Fritz Heider. [1] [2] It conceptualizes the cognitive consistency motive as a drive toward psychological balance. The consistency motive is the urge to maintain one's values and beliefs over time.
In psychology, displacement (German: Verschiebung, lit. 'shift, move') is an unconscious defence mechanism whereby the mind substitutes either a new aim or a new object for things felt in their original form to be dangerous or unacceptable. Example: If your boss criticizes you at work, you might feel angry but can't express it directly to your ...
Field theory is centered around the idea that a person's life space determines their behavior. [2] Thus, the equation was also expressed as B = f ( L ), where L is the life space. [ 4 ] In Lewin's book, he first presents the equation as B = f ( S ), where behavior is a function of the whole situation ( S ). [ 5 ]
Structural balance theory posits that some types of triads are forbidden and others are permitted on the basis of four rules. [4]Using the term “friend” to designate a positive sentiment and the term “enemy” to designate a negative sentiment, the classic balance model defines a sentiment network as balanced if it contains no violations of four assumptions:
Psychology professor Finn Tschudi's ABC model of psychotherapy uses a structure similar to a decisional balance sheet: A is a row that defines the problem; B is a row that lists schemas (tacit assumptions) about the advantages and disadvantages of resolving the problem; and C is a row that lists schemas about the advantages and disadvantages of ...