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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.
openaire   +1 more source

Proposal for a new non-linear model to describe growth curves

Bioscience Journal
This study was developed with longitudinal data measurements of Norfolk rabbits from birth to 119 days of age to estimate the average growth curve, with the primary objective of proposing a non-linear model.
André Luiz Pinto dos Santos, Tiago Alessandro Espínola Ferreira, Cícero Carlos Ramos de Brito, Frank Gomes-Silva, Guilherme Rocha Moreira   +4 more
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Age structure and growth of the rough scad, Trachurus lathami (Teleostei: Carangidae), in the Southeastern Brazilian Bight

Zoologia (Curitiba), 2017
The rough scad, Trachurus lathami Nichols, 1920, is a small pelagic species distributed along the West Atlantic coast. It is most abundant in the Southern Brazil (28°30’-34°S) and in the Southeastern Brazilian Bight (SEBB, 22°-28°30’S). The rough scad is
Lygia C. Ruas, André M. Vaz-dos-Santos
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Comparison between traditional models and artificial neural networks as estimators of the growth of the Tigris scraper Capoeta umbla (Teleostei: Cyprinidae) in the Munzur River, Turkey

Revista Científica
In this study, a comparison of traditional growth methods (length-weight relationships and von Bertalanffy growth function) with artificial neural networks in growth models was carried out in the growth of 783 specimens of Capoeta umbla from the Munzur ...
Ebru Ifakat Ozcan, Osman Serdar
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Individual growth and mortality of Rhithropanopeus harrisii (Decapoda: Panopeidae) in the estuarine region of Patos Lagoon, Southern Brazil

Nauplius, 2021
The present investigation aimed to estimate the individual growth and mortality of an invasive species found in the estuarine region of Patos Lagoon (Southern Brazil).
Diego Schuch Rodrigues, Duane Barros Fonseca   +1 more
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Validation of age determination methods and growth studies of the sand sole Pegusa lascaris (Soleidae) from the eastern-central Atlantic

Ciencias Marinas, 2011
The age and growth of the sand sole Pegusa lascaris from the Canarian Archipelago were studied from 2107 fish collected between January 2005 and December 2007.
JG Pajuelo, JM Lorenzo
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Comparison of Electronic Length Frequency Analysis (ELEFAN) for Estimation of Growth Parameters for Lollyfish, Holothuria (Holothuria) atra and Sand Sea Cucumber, Holothuria (Thymiosycia) arenicola (Holothuroidea: Echinodermata) in the North Arabian Sea, Pakistan

Marine Science and Technology Bulletin, 2020
To estimate the growth parameters, the non-seasonal von Bertalanffy and Hoenig seasonal von Bertalanffy models were fitted to the length frequency data of Holothuria atra and H. arenicola obtained from coastal areas of Karachi in the northern Arabian Sea,
Quratulan Ahmed, Sabri Bi̇lgi̇n, Qadeer Mohammad Ali̇   +2 more
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Avaliação de curvas de crescimento morfométrico de linhagens de tilápia do nilo (Oreochromis niloticus) Evaluation of morhometric growth curves of tilapia of Nilo (Oreochromis niloticus) strains

Ciência e Agrotecnologia, 2007
Com o objetivo de avaliar curvas de crescimento morfométrico de linhagens de tilápias em função dos pesos de abate, um experimento foi conduzido no setor de piscicultura da Universidade Federal de Lavras, M.G.- Brasil.
Vander Bruno dos Santos, Rilke Tadeu Fonseca de Freitas, Fabyano Fonseca e Silva, Thiago Archangelo Freato   +3 more
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Growth rates in two natural populations of Gasterosteus aculeatus in northwestern Spain: relationships with other life history parameters

Animal Biodiversity and Conservation, 2020
Tasas de crecimiento en dos poblaciones naturales de Gasterosteus aculeatus en el noroeste de España: relación con otros parámetros vitales Se analizaron las tasas de crecimiento de dos poblaciones naturales de Galicia (noroeste de España) del pez ...
E. San Miguel, R. Amaro, J. Castro, M. Hermida, C. Fernández   +4 more
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Curvas de crescimento na produção animal Growth curves in animal production

Revista Brasileira de Zootecnia, 2005
Foram discutidas as propriedades de sete modelos não-lineares, considerando-se o ajuste de curvas de crescimento na produção animal. Os modelos utilizados: Brody, Richards, Von Bertalanffy e duas alternativas de Gompertz e de Logístico foram ajustados ...
Alfredo Ribeiro de Freitas
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