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The von Bertalanffy growth function (VBGF), or von Bertalanffy curve, is a type of growth curve for a time series and is named after Ludwig von Bertalanffy. It is a special case of the generalised logistic function. The growth curve is used to model mean length from age in animals. [1]
The individual growth model published by Ludwig von Bertalanffy in 1934 is widely used in biological models and exists in a number of permutations. In its simplest version the so-called Bertalanffy growth equation is expressed as a differential equation of length (L) over time (t):
In the beginnings, general systems theory was developed by Ludwig von Bertalanffy to overcome the over-specialisation of the modern times and as a worldview using holism. The systems theories nowadays are closer to the traditional specialisation than to holism, by interdependencies and mutual division by mutually-different specialists. [2
Systems theory is manifest in the work of practitioners in many disciplines, for example the works of physician Alexander Bogdanov, biologist Ludwig von Bertalanffy, linguist Béla H. Bánáthy, and sociologist Talcott Parsons; in the study of ecological systems by Howard T. Odum, Eugene Odum; in Fritjof Capra's study of organizational theory; in the study of management by Peter Senge; in ...
The Foreword was written by Ludwig von Bertalanffy. "Systems philosophy", in Ervin Laszlo's sense of the term, means using the systems perspective to model the nature of reality, and to use this to solve important human problems (Laszlo, 1972).
Equifinality is the principle that in open systems a given end state can be reached by many potential means. The term and concept is due to the German Hans Driesch, the developmental biologist, later applied by the Austrian Ludwig von Bertalanffy, the founder of general systems theory, and by William T. Powers, the founder of perceptual control theory.
A particular case of the generalised logistic function is: = (+ ()) /which is the solution of the Richards's differential equation (RDE): ′ = (()) with initial condition
General Systems Theory (GST) laid the foundation to systemic thinking. Ludwig Von Bertalanffy was known as the founder of the original principles of GST. [1] Prior to 1968, when GST was introduced in Bertalanffy’s book, General System Theory: Foundations, Development, Applications, the traditional approach to development used linear thinking or cause-and-effect thinking.