Ludwig Von Bertalanffy

(redirected from Von Bertalanffy)

Bertalanffy, Ludwig Von

 

Born Sept. 19, 1901, in Atzgersdorf, Austria. Theoretical biologist, originator of the “general theory of systems.”

From 1934 to 1948, Bertalanffy was assistant professor and then professor at the University of Vienna; from 1949 to 1961 he worked in various universities in the USA and Canada; since 1961 he has been professor of theoretical biology at the University of Alberta, Canada. Approaching biological objects as organized dynamic systems, Bertalanffy gave an extensive analysis of the contradictions between mechanism and vitalism, of the origin and development of organismic ideas concerning the integrity of the organism, and, on the basis of the latter, of the formation of the conception of systems in biology. Bertalanffy is responsible for many attempts to apply the organismic approach (that is, the approach from the point of view of integrity) in the study of tissue respiration and of the relation between metabolism and growth in animals. The method proposed by Bertalanffy for the analysis of open, equifinal systems (that is, systems seemingly aspiring to some goal) opened up the possibility of the wide application in biology of the ideas of thermodynamics, cybernetics, and physical chemistry. Bertalanffy’s ideas have been applied in medicine, psychiatry, and other related disciplines. As one of the pioneers of the systems approach, Bertalanffy proposed the first generalized systematic conception in contemporary science. The tasks of this conception, according to Bertalanffy, are the construction of a mathematical apparatus for describing various types of systems, the establishment of the isomorphism of laws in various areas of knowledge, and the search for the means of integrating the sciences. These tasks, however, have only been realized for various types of open biological systems (that is, those exchanging matter, energy, and information with the surroundings). Bertalanffy is one of the organizers of the Society for Research in the Area of General Systems Theory (1954) and its yearbook General Systems.

WORKS

Theoretische Biologie, vols. 1–2. Berlin, 1932–42.
Das biologische Weltbild. Bern, [1949].
Problems of Life. London, 1952.
General System Theory: Foundations, Development, Applications. New York, 1968.

REFERENCES

Lektorskii, V. A., and V. N. Sadovskii. “O printsipakh issledovaniia sistem.” Voprosy filosofii, 1960, no. 8.
Bendmann, A. L. von Bertalanffy’s organismische Auffassung des Lebens in ihren philosophischen Konsequenzen. Jena, 1967.

K. M. KHAILOV

Mentioned in ?
References in periodicals archive ?
The authors, who are psychologists, outline a new theory and therapy for couples and families that completes the general systems theory of Ludwig von Bertalanffy and addresses what needs to change in a dysfunctional couple or family system.
Vole pups were randomized into litters of 1-2 (LD, low density), 3-5 (MD, medium density), and 6-9 (HD, high density) individuals, and the body weight, body length, tail length, and hind foot length were measured and curve-fitted by using Von Bertalanffy and Logistic equations.
To test the hypothesis that Iceland scallops grow more slowly in GB than in the SBI, the von Bertalanffy growth model parameters (von Bertalanffy 1938) were determined for both regions.
2] for weight (Table 4) was observed using Logistic, Gompertz, and Von Bertalanffy curves and lower values of [R.
o], se procedio a establecer las curvas de crecimiento en longitud y peso, segun el modelo de von Bertalanffy (1938): L = [L.
En ese contexto, el modelo de crecimiento mas comunmente utilizado en peces para describir estos parametros es el de Von Bertalanffy (MCVB) (Von Bertalanffy, 1938) (Gherard et al.
The parameters of von Bertalanffy growth function fitting to the length frequency data were L[?
Although von Bertalanffy growth models were biologically similar between sexes, they were found to be statistically different (female [FL=419.
Some mathematical functions commonly used in these studies include the Gompertz, Logistic, Brody, von Bertalanffy and Richards growth models (France et al.
Assim, novamente aqui, fez-se uso do criterio proposto por Scolforo (2005) e Campos e Leite (2006), sendo selecionado o modelo de Von Bertalanffy, que alem de possuir o maior coeficiente de determinacao ajustado, foi o que apresentou a menor variacao dos residuos com relacao a media.
Las curvas sigmoideas pueden ser representadas por los modelos de crecimiento de Gompertz y Logistico, mientras que el exponencial invertido es comunmente representado por la ecuacion de von Bertalanffy (MCVB).
For all individuals, von Bertalanffy growth parameters were L[?