Results 191 to 200 of about 41,831 (231)
Some of the next articles are maybe not open access.
von Bertalanffy growth model in a random environment
Canadian Journal of Fisheries and Aquatic Sciences, 1999The well-known von Bertalanffy growth model for describing age-length relationship is formulated in a randomly fluctuating environment. The fluctuations in the system are assumed to be described by a Gaussian white noise stochastic process. The resulting model, in terms of a stochastic differential equation, is solved analytically.
null Prajneshu, R. Venugopalan
openaire +1 more source
The scope and limitations of Von Bertalanffy’s systems theory
South African Journal of Philosophy, 2002The Systems Theory is a complex theory (yet it is not identical to recent theories of complexity). The intention of this qualification is to demonstrate that the concept of a system is a complex basic concept of scientific thinking. This means that it is defined in terms of various elementary basic concepts brought together in its explication.
openaire +2 more sources
Two‐step versus joint analysis of Von Bertalanffy function
Journal of Animal Breeding and Genetics, 1999IntroductionAnimal growth has been modelled using several mathematical functions (Logistic, Von Bertalanffy, Gompertz, etc.). These functions are described by a reduced number of parameters. In some cases, these parameters are assigned a biological interpretation (adult weight, maturing rate, etc.) and so the breeding goal can be closely related to the
L. Varona +4 more
openaire +1 more source
Ludwig Von Bertalanffy’s Contributions to Theoretical Psychology
1988This paper discusses the contributions to theoretical psychology of the late Professor Ludwig von Bertalanffy, a prominent biologist. Von Bertalanffy proposed open systems theory to explain life phenomena. Open systems, living organisms are examples of such systems, do not follow the second law of classical thermodynamics.
openaire +1 more source
Hans Jonas’ ‘Gnosticism and Modern Nihilism’, and Ludwig von Bertalanffy
Philosophy & Social Criticism, 2012‘Gnosticism and Modern Nihilism’ (published in Social Research, 1952) is indeed one of Hans Jonas’ most famous essays, to which its author reserved very deep attention during his philosophical career. As a former pupil of Martin Heidegger and Rudolf Bultmann, Jonas started to deal with religious topics, and specifically with Gnosticism, from the very ...
openaire +2 more sources
Von Bertalanffy Growth Parameters
Transactions of the American Fisheries Society, 1980Michael C. S. Kingsley +2 more
openaire +1 more source
Ludwig von Bertalanffy returns home
Systems Research and Behavioral Science, 2006Gerhard Chroust, Wolfgang Hofkirchner
openaire +1 more source
O Modelo de crescimento de peixes de Von Bertalanffy
Jornal Eletrônico de Ensino e Pesquisa de Matemática, 2017Neste trabalho apresentamos a equação diferencial de Von Bertalanffy que modela o crescimento de peixes. Embora seja uma equação diferencial simples e com solução explícita, a dedução do modelo envolve algumas dificuldades.
openaire +1 more source