Results 11 to 20 of about 9,217 (235)
On the exponent in the Von Bertalanffy growth model [PDF]
PeerJ, 2018 Von Bertalanffy proposed the differential equation m′(t) = p × m(t)a − q × m(t) for the description of the mass growth of animals as a function m(t) of time t.
Katharina Renner-Martin +4 more
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Best-fitting growth curves of the von Bertalanffy-Pütter type [PDF]
Poultry Science, 2019 A large body of literature aims at identifying growth models that fit best to given mass-at-age data. The von Bertalanffy-Pütter differential equation is a unifying framework for the study of growth models.The most common growth models used in poultry science literature fit into this framework, as these models correspond to different exponent-pairs (e ...
Manfred Kühleitner +2 more
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Solución Numérica de la Ecuación Diferencial de Von Bertalanffy
Revista de Ciencias, 1998 En este artículo presentaremos las soluciones numéricas de la. ecuación diferencial de VON BERTALANFFY.
Jorge Rodriguez +2 more
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Best fitting tumor growth models of the von Bertalanffy-PütterType. [PDF]
BMC Cancer, 2019 Longitudinal studies of tumor volume have used certain named mathematical growth models. The Bertalanffy-Pütter differential equation unifies them: It uses five parameters, amongst them two exponents related to tumor metabolism and morphology. Each exponent-pair defines a unique three-parameter model of the Bertalanffy-Pütter type, and the above ...
Kühleitner M +4 more
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Extended von Bertalanffy Equation in Solow Growth Modelling
AlgorithmsThe aim of this work is to model the growth of an economic system and, in particular, the evolution of capital accumulation over time, analysing the feasibility of a closed-form solution to the initial value problem that governs the capital-per-capita ...
Antonio E. Bargellini +2 more
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A general Richards family growth curve fit in European livestock for use in physiologically-based toxicokinetic modelling [PDF]
BMC Veterinary ResearchBackground Physiologically-based toxicokinetic models in livestock need to account for growth during long-term exposure studies due to increase in tissue volume and subsequent dilution of concentration.
David Inauen +3 more
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Social relations: Building on Ludwig von Bertalanffy [PDF]
Systems Research and Behavioral Science, 2019 AbstractLudwig von Bertalanffy did not leave us a legacy of a social systems theory. Nonetheless, reconstructing his general approach to systems provides us with several ideas on how to build a theory of social systems. The concept of social relations easily connects to Bertalanffy's concept of relations of organization.
Hofkirchner, Wolfgang +1 more
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Aplicação do Modelo de Von Bertalanffy na Avicultura Familiar
Intermaths, 2022 A avicultura familiar é de grande importância por ser de baixo custo e assegurar muitas vezes a melhoria da qualidade da alimentação do produtor e da sua família, bem como para complementar o orçamento de famílias em pequenos municípios em vários ...
Célia Maria Rufino Franco +1 more
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Nonlinear mixed models for characterization of growth trajectory of New Zealand rabbits raised in tropical climate [PDF]
Animal Bioscience, 2022 Objective The identification of nonlinear mixed models that describe the growth trajectory of New Zealand rabbits was performed based on weight records and carcass measures obtained using ultrasonography.
Vanusa Castro de Sousa +7 more
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SOME NEW RESULTS OF A FRACTIONAL VON BERTALANFFY MODEL
E-Jurnal Matematika, 2023 In this article, we review the deterministic and perturbed Von Bertalanffy model that has been developing to discuss the existence and uniqueness results of the model.
AVAN AL-SAFFAR
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