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Remarks on Autocatalysis and Autopoiesis
Annals of the New York Academy of Sciences, 2000Abstract: The notions of collective autocatalysis and of autopoiesis are clearly related; equally clearly, they are not quite the same. The purpose of this paper is to try to clarify the relationship. Specifically I suggest that autopoiesis can be at least roughly characterized as collective autocatalysis plus spatial individuation.
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Autocatalysis During Fullerene Growth
Science, 1996Total energy calculations with a local spin density functional have been applied to the Stone-Wales transformation in fullerene (C 60 ). In the formation of the almost exclusively observed I h isomer of C 60 with isolated ...
Eggen, BR +5 more
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Specific Autocatalysis in Diastereoisomeric Replicators
Organic Letters, 2005Two diastereoisomeric cycloadducts are capable of accelerating their own formation through the assembly of catalytic ternary complexes. The two cycloadducts do not have any measurable catalytic effect on the rate of formation of their diastereoisomer. [structure: see text]
Eleftherios, Kassianidis +2 more
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To the Core of Autocatalysis in Cyclohexane Autoxidation
Chemistry – A European Journal, 2006AbstractDespite their industrial importance, the detailed reaction mechanism of autoxidation reactions is still insufficiently known. In this work, complementary experimental and theoretical techniques are employed to address the radical‐chain initiation in the autoxidation of cyclohexane with a particular focus on the “lighting‐off” of the oxidation ...
Ive, Hermans +2 more
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Correct classification and identification of autocatalysis
Physical Chemistry Chemical Physics, 2021Systematic analysis of mass-action-type models producing sigmoidal concentration–time profiles led to refining the definition of autocatalysis resulting in their correct characterization and classification.
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Kinetics of autocatalysis in small systems
The Journal of Chemical Physics, 2008Autocatalysis is a ubiquitous chemical process that drives a plethora of biological phenomena, including the self-propagation of prions etiological to the Creutzfeldt-Jakob disease and bovine spongiform encephalopathy. To explain the dynamics of these systems, we have solved the chemical master equation for the irreversible autocatalytic reaction A+B ...
Erdem, Arslan, Ian J, Laurenzi
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Novel applications of physical autocatalysis
Origins of Life and Evolution of Biospheres, 2015The autocatalytic self-reproduction of micelles and vesicles has been studied for several decades. These systems are vital components of certain protocell models and some models for how life may have begun from mixtures of simple chemicals. Here we discuss our recently described autocatalytic systems where self-reproducing micelles are driven by bond ...
Andrew J, Bissette, Stephen P, Fletcher
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Complex Autocatalysis in Simple Chemistries
Artificial Life, 2016Life on Earth must originally have arisen from abiotic chemistry. Since the details of this chemistry are unknown, we wish to understand, in general, which types of chemistry can lead to complex, lifelike behavior. Here we show that even very simple chemistries in the thermodynamically reversible regime can self-organize to form complex autocatalytic ...
Nathaniel Virgo +2 more
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Annals of Applied Biology, 1928
Summary.The autocatalytic equation in the form log x/(a ‐ x) =K (t‐t1) may be used to express closely the changes which occur during growth.The constant k, as given by K = ka, is not a constant which is independent of environmental conditions.The changes in growth may be more suitably expressed by means of the equation dx/dt= (k1+ k2x) (a ‐ x). In this
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Summary.The autocatalytic equation in the form log x/(a ‐ x) =K (t‐t1) may be used to express closely the changes which occur during growth.The constant k, as given by K = ka, is not a constant which is independent of environmental conditions.The changes in growth may be more suitably expressed by means of the equation dx/dt= (k1+ k2x) (a ‐ x). In this
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Artificial Life 14: Proceedings of the Fourteenth International Conference on the Synthesis and Simulation of Living Systems, 2014
Life on Earth must originally have arisen from abiotic chemistry. Since the details of this chemistry are unknown, we wish to understand, in general, which types of chemistry can lead to complex, life-like behaviour. Our recent work has shown that the inclusion of thermodynamic principles in simple artificial chemistry models can result in the ...
Nathaniel Virgo +2 more
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Life on Earth must originally have arisen from abiotic chemistry. Since the details of this chemistry are unknown, we wish to understand, in general, which types of chemistry can lead to complex, life-like behaviour. Our recent work has shown that the inclusion of thermodynamic principles in simple artificial chemistry models can result in the ...
Nathaniel Virgo +2 more
openaire +1 more source